CN217002346U

CN217002346U - Fan with motor auxiliary heat radiation structure

Info

Publication number: CN217002346U
Application number: CN202220567425.0U
Authority: CN
Inventors: 邢兴州
Original assignee: Shengzhou Kechuang Motor Co ltd
Current assignee: Shengzhou Kechuang Motor Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-19
Anticipated expiration: 2032-03-16

Abstract

The utility model provides a fan with a motor auxiliary heat dissipation structure, which comprises a motor and an impeller, wherein the impeller comprises an end ring, a motor mounting disc and a plurality of blades connected between the end ring and the motor mounting disc, the motor comprises a motor shell, a motor rotor and a motor output shaft, the blades are arranged around the periphery of the motor shell, a plurality of heat dissipation holes are formed in the two sides of the rotor on the motor shell, and the heat dissipation holes are formed in the circumferential direction of the motor. This fan establishes fan blade through setting up the louvre on motor casing, encloses in the periphery of louvre, plays fan blade to the supplementary radiating action of inside motor, because the little inside atmospheric pressure of the outside atmospheric pressure of motor is big, the inside hot gas of motor outwards discharges via the louvre, plays the radiating action of motor, and the exhaust hot gas has reached good radiating effect again outside fan blade is arranged fast to the exhaust again.

Description

Fan with motor auxiliary heat radiation structure

Technical Field

The utility model belongs to the technical field of fans, and particularly relates to a fan with a motor auxiliary heat dissipation structure.

Background

The fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, is a driven fluid machine, and is widely applied to various fields. The motor of present fan is all installed inside the fan, can't effectively dispel the heat, and the great heat of heat accumulation is gathered around the long motor of time, and the too big driving motor that burns out easily of heat accumulation to lead to the motor to damage, the unable normal work of fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem and provides a fan with a motor auxiliary heat dissipation structure.

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

a fan with a motor auxiliary heat dissipation structure comprises a motor and an impeller, wherein the impeller comprises an end ring, a motor mounting disc and a plurality of blades connected between the end ring and the motor mounting disc, the blades are in a long strip shape, the length direction of the blades is along the axial direction of the impeller, the cross section of each blade is in an arc strip shape formed by splicing circular arcs or multiple sections of circular arcs, the motor comprises a motor shell, a motor rotor and a motor output shaft, the motor shell is in a cylindrical shell shape, the motor rotor is rotationally connected onto the motor shell, the motor output shaft is fixedly connected with the motor rotor and stretches out of one end of the motor shell, a shaft hole is formed in the middle of the motor mounting disc, the motor output shaft penetrates through the shaft hole and is fixedly connected with the motor mounting disc, and the blades are arranged around the periphery of the motor shell, the motor shell is provided with a plurality of heat dissipation holes on two sides of the rotor, and the heat dissipation holes are formed along the circumferential direction of the motor.

As a preferred technical scheme, the longitudinal section of the heat dissipation hole is in the shape of an arc strip, the width of which is gradually reduced from the inside of the motor to the outside of the motor.

As a preferable technical solution, the outer boundary line and the inner boundary line of the longitudinal section of the heat dissipation hole are both arc lines, and the outer boundary line of the longitudinal section of the heat dissipation hole is tangent to the inner surface of the motor housing.

As a preferred technical scheme, a plurality of air inlet holes are formed in the end face of the motor shell.

After the technical scheme is adopted, the utility model has the following advantages:

according to the fan with the motor auxiliary heat dissipation structure, the heat dissipation holes are formed in the motor shell, the fan blades are arranged on the periphery of the heat dissipation holes in a surrounding mode, the fan blades play an auxiliary heat dissipation role on an internal motor, due to the fact that the external air pressure of the motor is small and the internal air pressure is large, hot gas inside the motor is discharged outwards through the heat dissipation holes, the heat dissipation role of the motor is played, the discharged hot gas is quickly discharged out of the fan through the fan blades, and a good heat dissipation effect is achieved. Preferably, the longitudinal sections of the heat dissipation holes are arc-shaped, the width of the arc-shaped sections is gradually reduced from the inside of the motor to the outside of the motor, the heat dissipation holes in the outer surface of the motor shell are small, and interference on a flow field of the fan blade in the fan volute cannot be generated.

Drawings

Fig. 1 is a schematic structural diagram of a fan with an auxiliary heat dissipation structure of a motor;

fig. 2 is a sectional view of a fan having a motor auxiliary heat dissipation structure at a heat dissipation hole;

in the figure:

1-a motor; 11-a motor housing; 12-a rotor of an electric machine; 13-motor output shaft; 111-heat dissipation holes; 2-an impeller; 21-end ring; 22-motor mounting plate; 23-a blade; 3-a volute; 31-left volute; 32-right volute.

Detailed Description

The utility model is described in further detail below with reference to the following figures and specific examples.

As shown in fig. 1-2, a blower with a motor-assisted heat dissipation structure includes a motor 1, an impeller 2, and a volute 3.

The volute 3 comprises a left volute 31 and a right volute 32, the left volute 31 and the right volute 32 are fixedly connected through a plurality of screws, and an air outlet is formed in the upper portion of the volute 3.

The impeller 2 comprises an end ring 21, a motor mounting disc 22 and a plurality of blades 23 connected between the end ring 21 and the motor mounting disc 22. In this embodiment, two end rings 21 are provided, and the motor mounting disk 22 is provided between the two end rings 21. The blade 23 is long and the length direction of the blade 23 is along the axial direction of the impeller 2, and the cross section of the blade 23 is arc-shaped or arc-shaped with multiple sections of arcs spliced.

The motor 1 includes a motor housing 11, a motor rotor 12, and a motor output shaft 13. The motor housing 11 is a cylindrical shell, the motor rotor 12 is rotatably connected to the motor housing 11, and the motor output shaft 13 is fixedly connected to the motor rotor 12 and extends out of one end of the motor housing 11. A plurality of air inlet holes are formed in the left end face of the motor shell 11. The middle of the motor mounting disc 22 is provided with a shaft hole, and the motor output shaft 13 penetrates through the shaft hole and is fixedly connected with the motor mounting disc 22.

The blades 23 are arranged around the motor housing 11, a plurality of heat dissipation holes 111 are formed in both sides of the rotor on the motor housing 11, and the heat dissipation holes 111 are arranged along the circumferential direction of the motor 1. The longitudinal section of the heat dissipation hole 111 is in the shape of an arc whose width gradually decreases from the inside of the motor 1 to the outside of the motor. The outer boundary line and the inner boundary line of the longitudinal section of the heat dissipation hole 111 are both arc lines, and the outer boundary line of the longitudinal section of the heat dissipation hole 111 is tangent to the inner surface of the motor shell 11.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. The utility model provides a fan with supplementary heat radiation structure of motor, its characterized in that includes motor and impeller, the impeller includes end ring, motor mounting disc and connects a plurality of blades between end ring and motor mounting disc, the blade is rectangular form just the length direction of blade is followed the axial of impeller, the transversal arc strip form that personally submits circular-arc or the concatenation of multistage circular arc of blade, the motor includes motor casing, motor rotor and motor output shaft, motor casing is the cylinder shell form, motor rotor rotates to be connected on motor casing, motor output shaft with motor rotor fixed connection just stretch out in motor casing's one end, the centre of motor mounting disc is equipped with the shaft hole, motor output shaft pass the shaft hole and with motor mounting disc fixed connection, a plurality of blades enclose and establish motor casing's periphery, the motor shell is provided with a plurality of heat dissipation holes on two sides of the rotor, and the heat dissipation holes are formed along the circumferential direction of the motor.

2. The fan with the auxiliary heat dissipation structure of the motor as claimed in claim 1, wherein the longitudinal cross section of the heat dissipation hole is in the shape of an arc with a width gradually decreasing from the inside of the motor to the outside of the motor.

3. The fan with the auxiliary heat dissipation structure of the motor as claimed in claim 2, wherein the outer boundary line and the inner boundary line of the longitudinal section of the heat dissipation hole are both arc lines, and the outer boundary line of the longitudinal section of the heat dissipation hole is tangent to the inner surface of the motor housing.

4. The fan with the motor auxiliary heat dissipation structure as recited in any one of claims 1 to 3, wherein a plurality of air inlet holes are provided on an end surface of the motor housing.