CN217590465U - A motor fast dispels heat for hair-dryer - Google Patents

Abstract

The utility model discloses a quick heat dissipation motor for a blower, which comprises a shell, a rotor assembly, a stator assembly and a PCBA board, wherein the rotor assembly and the stator assembly are arranged in the shell, and the rotor assembly is in driving connection with an impeller; wherein: the shell comprises a first cylinder and a second cylinder, an air channel is formed between the first cylinder and the second cylinder, and a flow deflector is arranged in the air channel; and the front end of the first barrel is provided with a supporting wall, the supporting wall of the first barrel and the surrounding side wall form a cavity, a notch is arranged on the surrounding side wall of the first barrel, and the front end of the notch is provided with a vent hole communicated with the cavity. Therefore, the gap and the exhaust hole are formed in the cavity of the shell and communicated to the air duct, so that the iron core of the stator assembly is directly exposed in the air duct and can directly exhaust heat to the air duct; and the winding of the stator component discharges the heat to the air duct through the exhaust holes, so that the heat dissipation efficiency of the motor is effectively improved.

Description

A motor fast dispels heat for hair-dryer

Technical Field

The utility model relates to a motor field for the hair-dryer especially relates to a quick heat dissipation motor for hair-dryer.

Background

The motor is an essential component of the hair dryer; however, the existing motor has the problems that the heat dissipation efficiency is not high enough, and the service life of the motor is shortened; meanwhile, the mounting structure of the existing motor is also complex.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects and shortcomings of the prior art, the utility model provides a quick heat dissipation motor for a hair dryer, which is communicated with an air duct by arranging a notch and an exhaust hole on a cavity of a casing, so that an iron core of a stator assembly is directly exposed in the air duct and heat can be directly discharged to the air duct; and the winding of the stator component discharges heat to the air duct through the exhaust holes, so that the heat dissipation efficiency of the motor is effectively improved, the use safety performance is ensured, and the working efficiency of the blower is also improved.

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

a quick heat dissipation motor for a blower comprises a machine shell, a rotor assembly, a stator assembly and a PCBA board, wherein the rotor assembly and the stator assembly are arranged in the machine shell, and the PCBA board is arranged on the rear side of the rotor assembly; an impeller is connected to the front side of the rotor assembly in a driving manner; wherein:

the shell comprises a first cylinder and a second cylinder which are arranged concentrically, an air channel is formed between the first cylinder and the second cylinder, and a flow deflector is arranged in the air channel to connect the first cylinder and the second cylinder;

and the front end of the first barrel is provided with a supporting wall, the supporting wall and the peripheral side wall of the first barrel form a cavity for mounting the rotor assembly and the stator assembly, a notch is arranged on the peripheral side wall of the first barrel, and the front end of the notch is provided with an exhaust hole communicated with the cavity.

As a preferable scheme, a first bearing seat is arranged at the center of the supporting wall, and the rotor assembly comprises a shaft core and a magnetic ring arranged on the shaft core; and a first bearing matched with the first bearing seat is arranged on the shaft core.

As a preferred scheme, the rear end of the first cylinder is detachably connected with a rear cover, a second bearing seat is arranged on the rear cover, and a second bearing matched with the second bearing seat is arranged on the shaft core.

Preferably, a wave-shaped gasket is arranged in the second bearing seat, when the wave-shaped gasket is installed, an axial clearance is formed between the second bearing and the upper wall surface of the second bearing seat, and the wave-shaped gasket is installed on the axial clearance.

Preferably, the first cylinder and the second cylinder are both cylindrical.

As a preferable scheme, the notch is provided with a plurality of notches along the peripheral side wall of the first cylinder.

As a preferable scheme, the flow deflector is provided with an air inlet part and an air outlet part connected to the rear end of the air inlet part; wherein:

the extending direction of the air inlet portion is different from the axial direction of the first cylinder, and the extending direction of the air outlet portion is the same as the axial direction of the first cylinder.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, according to the technical scheme, the gap is arranged on the cavity of the casing and the vent hole is communicated with the air channel, so that the iron core of the stator component is directly exposed in the air channel and can directly discharge heat to the air channel; the winding of the stator component discharges heat to the air duct through the exhaust holes, so that the heat dissipation efficiency of the motor is effectively improved, the use safety performance is ensured, and the working efficiency of the blower is improved;

meanwhile, the motor of the application also has the advantages of simple assembly and compact structure; and, the effect of noise reduction is played in the wave form gasket that rationally sets up.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a first perspective view of an embodiment of the present invention;

fig. 2 is a second perspective view of the embodiment of the present invention;

fig. 3 is a third perspective view of the embodiment of the present invention;

FIG. 4 is an exploded view of an embodiment of the present invention;

fig. 5 is a schematic perspective view of the housing according to the embodiment of the present invention;

fig. 6 is a first cross-sectional view of an embodiment of the present invention;

FIG. 7 is a second cross-sectional view of an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a partial enlarged view of fig. 7 at B.

The attached drawings indicate the following:

10. a housing; 11. a first cylinder; 111. a support wall; 112. a notch; 113. an exhaust hole; 114. a heat dissipation gap; 115. a rear cover; 12. a second cylinder; 13. an air duct; 131. a flow deflector; 1311. an air inlet part; 1312. an air outlet part; 20. a rotor assembly; 21. an impeller; 22. a shaft core; 23. a magnetic ring; 24. a first bearing; 25. a second bearing; 30. a stator assembly; 31. an iron core; 32. a winding; 40. PCBA board; 50. a wave shaped gasket.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiment is only a preferred embodiment of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 9, in an embodiment of the present invention, a motor with rapid heat dissipation for a hair dryer includes a casing 10, a rotor assembly 20, a stator assembly 30, and a PCBA plate 40, wherein the rotor assembly 20 and the stator assembly 30 are installed in the casing 10, and the PCBA plate 40 is installed at a rear side of the rotor assembly 20; an impeller 21 is drivingly connected to the front side of the rotor assembly 20; wherein:

the casing 10 comprises a first cylinder 11 and a second cylinder 12 which are concentrically arranged, an air duct 13 is formed between the first cylinder 11 and the second cylinder 12, and a flow deflector 131 is arranged in the air duct 13 to connect the first cylinder 11 with the second cylinder 12;

and a support wall 111 is arranged at the front end of the first cylinder 11, a cavity for mounting the rotor assembly 20 and the stator assembly 30 is formed around the support wall 111 and the peripheral sidewall of the first cylinder 11, a notch 112 is arranged on the peripheral sidewall of the first cylinder 11, and a vent hole 113 communicated with the cavity is arranged at the front end of the notch 112.

When in use, the rotor assembly 20 and the stator assembly 30 are installed on the first cylinder 11, the windings 32 of the stator are in welding conduction with the PCBA 40, and a heat dissipation gap 114 is kept between the front end of the stator assembly 30 and the support wall 111; the stator assembly 30 comprises an iron core 31 and a winding 32, and the iron core 31 of the stator assembly 30 is exposed out of the gap 112, so that heat is directly volatilized into the air duct 13; the heat dissipation gap 114 is communicated with the air duct 13 through the air outlet 113 and the gap 112, so that the heat of the winding 32 is rapidly transferred to the air duct 13.

Specifically, when the rotor assembly 20 drives the impeller 21 to rotate, the air axially enters the impeller 21 from the air inlet side of the casing and then enters the air duct 13; at this time, the air pressure difference exists between the heat dissipation gap 114 and the air duct 13, so that the heat in the heat dissipation gap 114 can be quickly volatilized into the air duct 13 through the exhaust holes 113 and the gap 112, and is taken out to the outside through the air flow in the air duct 13, the cooling rate of the winding 32 is increased, and the heat dissipation efficiency of the motor is effectively improved.

In practical applications, the first cylinder 11 and the second cylinder 12 are preferably cylindrical. Further, a first bearing seat is arranged at the center of the supporting wall 111, and the rotor assembly 20 comprises a shaft core 22 and a magnetic ring 23 arranged on the shaft core 22; and a first bearing 24 matched with the first bearing seat is arranged on the shaft core 22. Further, the rear end of the first cylinder 11 is detachably connected with a rear cover, the rear cover is provided with a second bearing seat, and the shaft core 22 is provided with a second bearing 25 adapted to the second bearing seat.

Preferably, a wave-shaped gasket 50 is arranged in the second bearing seat, when the bearing is installed, an axial clearance is kept between the second bearing 25 and the upper wall surface of the second bearing seat, and the wave-shaped gasket 50 is installed in the axial clearance; the advantages are that: the wave-shaped gasket 50 can pre-stress the bearing, eliminate the bearing clearance and reduce the noise.

Furthermore, a plurality of gaps 112 are arranged along the circumferential sidewall of the first cylinder 11; preferably, a plurality of baffles 131 are arranged at a distance from the middle of the air duct 13.

Further, the method comprises the following steps: the guide vane 131 is provided with an air inlet part 1311 and an air outlet part 1312 connected to the rear end of the air inlet part 1311; wherein: the air inlet portion 1311 is a curved extending sheet, and the air outlet portion 1312 is a straight extending sheet. Namely: the extending direction of the air inlet portion 1311 is different from the axial direction of the first cylinder 11, and the extending direction of the air outlet portion 1312 is the same as the axial direction of the first cylinder 11; such that: the flow direction of the air from the intake side of the casing 10 changes from the flow in the deflection direction to the flow in accordance with the axial direction of the casing 10.

The utility model is mainly designed in such a way that the cavity of the casing is provided with the notch and the exhaust hole is communicated with the air duct, so that the winding of the stator component is directly exposed in the air duct and can directly exhaust heat to the air duct; the iron core of the stator component discharges heat to the air duct through the exhaust holes, so that the heat dissipation efficiency of the motor is effectively improved, the use safety performance is ensured, and the working efficiency of the blower is improved;

meanwhile, the motor of the application also has the advantages of simple assembly and compact structure.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (7)

1. A motor that dispels heat fast for hair-dryer which characterized in that: the motor comprises a machine shell, a rotor assembly, a stator assembly and a PCBA board, wherein the rotor assembly and the stator assembly are arranged in the machine shell, and the PCBA board is arranged on the rear side of the rotor assembly; an impeller is connected to the front side of the rotor assembly in a driving manner; wherein:

the shell comprises a first cylinder and a second cylinder which are concentrically arranged, an air duct is formed between the first cylinder and the second cylinder, and a flow deflector is arranged in the air duct to connect the first cylinder with the second cylinder;

and the front end of the first barrel is provided with a supporting wall, the supporting wall and the peripheral side wall of the first barrel form a cavity for mounting the rotor assembly and the stator assembly, a notch is arranged on the peripheral side wall of the first barrel, and the front end of the notch is provided with an exhaust hole communicated with the cavity.

2. A rapid heat dissipation motor for a hair dryer as claimed in claim 1, wherein: a first bearing seat is arranged at the center of the supporting wall, and the rotor assembly comprises a shaft core and a magnetic ring arranged on the shaft core; and a first bearing matched with the first bearing seat is arranged on the shaft core.

3. A rapid heat dissipation motor for a hair dryer as claimed in claim 2, wherein: the rear end of the first barrel is detachably connected with a rear cover, a second bearing seat is arranged on the rear cover, and a second bearing matched with the second bearing seat is arranged on the shaft core.

4. A rapid heat dissipation motor for a hair dryer as claimed in claim 3, wherein: a wave-shaped gasket is arranged in the second bearing seat, during installation, an axial clearance is formed between the second bearing and the upper wall surface of the second bearing seat, and the wave-shaped gasket is installed on the axial clearance.

5. A rapid heat dissipation motor for a hair dryer as claimed in claim 1, wherein: the first cylinder and the second cylinder are both cylindrical.

6. A rapid heat dissipation motor for a hair dryer as claimed in claim 5, wherein: the breach is provided with a plurality of along the week side wall of first barrel.

7. A rapid heat dissipation motor for a hair dryer as claimed in claim 5, wherein: the flow deflector is provided with an air inlet part and an air outlet part connected to the rear end of the air inlet part; wherein:

the extending direction of the air inlet portion is different from the axial direction of the first cylinder, and the extending direction of the air outlet portion is the same as the axial direction of the first cylinder.

Images