阅读说明：本技术 一种低噪音吹风机 (Low-noise blower ) 是由 黄信森 于 2019-09-27 设计创作，主要内容包括：本发明提出一种低噪音吹风机,包括:外壳和发热件；所述外壳内设有第一收纳腔和与所述第一收纳腔连通的第二收纳腔,所述第二收纳腔内设有与所述外壳固定连接的电路板,所述外壳两端还设有与所述第一收纳腔连通的进风口和出风口,所述发热件收容在所述第一收纳腔内并靠近所述进风口,所述发热件与所述外壳固定连接,所述发热件与所述电路板电连接；本发明提出的低噪音吹风机的发热件设置在靠近进风口的位置,发热件位于无刷电机组件和进风口之间,当无刷电机组件工作时,外部空气从进风口吸入第一收纳腔内,此时外部空气还未经过无刷电机组件加速,速度不快,当外部空气经过发热件时不会产生较大的噪声并且发热件对外部空气的加热效率也很高。(The invention provides a low-noise blower, which comprises a shell and a heating piece, wherein the shell is provided with a first end and a second end; a first accommodating cavity and a second accommodating cavity communicated with the first accommodating cavity are arranged in the shell, a circuit board fixedly connected with the shell is arranged in the second accommodating cavity, an air inlet and an air outlet communicated with the first accommodating cavity are further arranged at two ends of the shell, the heating element is accommodated in the first accommodating cavity and is close to the air inlet, the heating element is fixedly connected with the shell, and the heating element is electrically connected with the circuit board; the heating element of the low-noise hair drier is arranged at a position close to the air inlet, the heating element is positioned between the brushless motor component and the air inlet, when the brushless motor component works, external air is sucked into the first accommodating cavity from the air inlet, the external air is not accelerated by the brushless motor component at the moment, the speed is not high, when the external air passes through the heating element, large noise cannot be generated, and the heating efficiency of the heating element to the external air is also high.)

1. A low noise hair drier is characterized in that the low noise hair drier comprises a shell and a heating piece; the heating device comprises a shell, and is characterized in that a first storage cavity and a second storage cavity communicated with the first storage cavity are arranged in the shell, a circuit board fixedly connected with the shell is arranged in the second storage cavity, an air inlet and an air outlet communicated with the first storage cavity are further arranged at two ends of the shell, a heating part is stored in the first storage cavity and close to the air inlet, the heating part is fixedly connected with the shell, and the heating part is electrically connected with the circuit board.

2. The low noise hair dryer of claim 1, further comprising a hollow mounting plate and a filter screen, wherein the hollow mounting plate is accommodated in the air inlet and is fixedly connected with the housing, the hollow mounting plate is provided with a mounting groove, and the filter screen is fixedly mounted in the mounting groove.

3. The low noise hair dryer of claim 2, further comprising an air inlet cover, wherein the air inlet cover is partially received in the air inlet, the air inlet cover is sleeved on the hollowed-out mounting plate, the air inlet cover is fixedly connected with the housing, an air inlet hole communicated with the air inlet is further formed in the air inlet cover, and the filter screen is located between the air inlet cover and the hollowed-out mounting plate.

4. The low noise hair dryer of claim 1, further comprising a first bracket and a second bracket, wherein said first bracket is received in said first receiving cavity and fixedly connected to said housing, said second bracket is received in said first receiving cavity and fixedly connected to said housing, and said first bracket and said second bracket sandwich said heat generating member.

5. The low noise hair dryer of claim 4, further comprising a temperature protection device housed in said first housing cavity, said temperature protection device being fixedly attached to said first bracket, said temperature protection device being electrically connected to said circuit board.

6. The low noise hair dryer of claim 1, further comprising an inner sleeve, wherein the inner sleeve is received in the first receiving cavity and is fixedly connected to the outer shell, and a hollow shielding plate is disposed at one end of the inner sleeve and received in the air outlet.

7. The low noise hair dryer of claim 6, further comprising a motor bracket, wherein a third receiving cavity is formed in the inner housing and communicates with the first receiving cavity, and the motor bracket is received in the third receiving cavity and is fixedly connected to the inner housing.

8. The low noise blower of claim 7, further comprising a brushless motor assembly, wherein said motor support includes a fourth cavity therein in communication with said third cavity, said brushless motor assembly being partially received in said fourth cavity and fixedly attached to said motor support, said brushless motor assembly being electrically connected to said circuit board.

9. The low noise hair dryer of claim 6, further comprising a magnetic ring received in the air outlet, the magnetic ring disposed between the hollow shield and the housing.

10. The low noise hair dryer of claim 1, wherein said housing further has a through hole communicating with said second receiving chamber.

Technical Field

The invention relates to the technical field of hair dryers, in particular to a low-noise hair dryer.

Background

The heating part of the traditional hair drier is arranged at the air outlet, when the hair drier works, the motor starts to rotate to suck external air into the hair drier, the air is accelerated by the motor, then is heated by the heating part, and finally is blown out of the hair drier from the air outlet; because the air is fast when the piece that generates heat, can produce great noise to because the speed of air is fast, can lead to the heating efficiency reduction of the piece that generates heat.

Disclosure of Invention

in order to solve the above problems, the present invention provides a low noise hair dryer.

The invention is realized by the following technical scheme:

The invention provides a low-noise hair drier which comprises a shell and a heating piece, wherein the shell is provided with a first end and a second end; the heating device comprises a shell, and is characterized in that a first storage cavity and a second storage cavity communicated with the first storage cavity are arranged in the shell, a circuit board fixedly connected with the shell is arranged in the second storage cavity, an air inlet and an air outlet communicated with the first storage cavity are further arranged at two ends of the shell, a heating part is stored in the first storage cavity and close to the air inlet, the heating part is fixedly connected with the shell, and the heating part is electrically connected with the circuit board.

Further, the low noise hair-dryer still includes fretwork mounting panel and filter screen, the fretwork mounting panel is acceptd in the air inlet and with shell fixed connection, be equipped with the mounting groove on the fretwork mounting panel, filter screen fixed mounting be in the mounting groove.

Further, the low noise hair-dryer still includes the air inlet lid, the air inlet lid is acceptd in the air inlet, the air inlet lid cover is established on the fretwork mounting panel, the air inlet lid with shell fixed connection, the air inlet cover still be equipped with the fresh air inlet of air intake intercommunication, the filter screen is located the air inlet lid with between the fretwork mounting panel.

Furthermore, the low-noise hair drier further comprises a first support and a second support, the first support is contained in the first containing cavity and fixedly connected with the shell, the second support is contained in the first containing cavity and fixedly connected with the shell, and the first support and the second support clamp the heating element.

Furthermore, the low-noise hair drier further comprises a temperature protection device, the temperature protection device is accommodated in the first accommodating cavity, the temperature protection device is fixedly connected with the first support, and the temperature protection device is electrically connected with the circuit board.

Furthermore, the low-noise hair drier further comprises an inner sleeve, the inner sleeve is contained in the first containing cavity and fixedly connected with the outer shell, a hollow shielding plate is arranged at one end of the inner sleeve, and the hollow shielding plate is contained in the air outlet.

Furthermore, the low-noise hair drier further comprises a motor support, a third accommodating cavity communicated with the first accommodating cavity is formed in the inner sleeve, and the motor support is accommodated in the third accommodating cavity and fixedly connected with the inner sleeve.

Furthermore, the low-noise hair drier further comprises a brushless motor assembly, a fourth accommodating cavity communicated with the third accommodating cavity is formed in the motor support, the brushless motor assembly is partially accommodated in the fourth accommodating cavity and fixedly connected with the motor support, and the brushless motor assembly is electrically connected with the circuit board.

Furthermore, the low-noise hair drier further comprises a magnetic ring, the magnetic ring is accommodated in the air outlet, and the magnetic ring is arranged between the hollow shielding plate and the shell.

Furthermore, the shell is further provided with a through hole communicated with the second accommodating cavity.

The invention has the beneficial effects that:

The heating element of the low-noise hair drier is arranged at a position close to the air inlet, the heating element is positioned between the brushless motor component and the air inlet, when the brushless motor component works, external air is sucked into the first accommodating cavity from the air inlet, the external air is not accelerated by the brushless motor component at the moment, the speed is not high, when the external air passes through the heating element, large noise cannot be generated, and the heating efficiency of the heating element to the external air is also high.

Drawings

FIG. 1 is a schematic cross-sectional view of a low noise blower of the present invention;

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

FIG. 3 is a perspective view of a low noise blower of the present invention;

figure 4 is a perspective view of another orientation of the low noise blower of the present invention.

Detailed Description

In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.

Referring to fig. 1 to 4, the present invention provides a low noise hair dryer, which includes a housing 10 and a heat generating member 20; the heating device is characterized in that a first accommodating cavity 11 and a second accommodating cavity 12 communicated with the first accommodating cavity 11 are arranged in the shell 10, a circuit board 121 fixedly connected with the shell 10 is arranged in the second accommodating cavity 12, an air inlet 13 and an air outlet 14 communicated with the first accommodating cavity 11 are further arranged at two ends of the shell 10, the heating element 20 is accommodated in the first accommodating cavity 11 and close to the air inlet 13, the heating element 20 is fixedly connected with the shell 10, and the heating element 20 is electrically connected with the circuit board 121.

In the present embodiment, the heat generating member 20 is electrically connected to the circuit board 121, and the circuit board 121 is electrically connected to an external power source through a cable; the heating element 20 is a honeycomb PTC ceramic heating element, so that the heating efficiency is higher and the heating is safer; the external air enters the first accommodating cavity 11 through the air inlet 13, and is heated by the heating element 20 and then blown out of the first accommodating cavity 11 through the air outlet 14; the heating member 20 is close to the air inlet 13, and the speed of the external air just entering the first receiving cavity 11 is not fast, so that the external air passing through the heating member 20 does not generate large noise and the heating efficiency of the heating member 20 to the external air is also high.

Further, the low noise hair-dryer still includes fretwork mounting panel 30 and filter screen 40, fretwork mounting panel 30 is acceptd in air intake 13 and with shell 10 fixed connection, be equipped with mounting groove 31 on the fretwork mounting panel 30, filter screen 40 fixed mounting be in the mounting groove 31.

In this embodiment, the outside air passes through the filter screen 40 and the hollow mounting plate 30 sequentially and enters the first accommodating cavity 11, and the filter screen 40 can prevent large particles in the air from entering the first accommodating cavity 11 and causing the damage of the low-noise blower.

Further, the low noise hair drier further comprises an air inlet cover 50, the part of the air inlet cover 50 is accommodated in the air inlet 13, the air inlet cover 50 is sleeved on the hollow mounting plate 30, the air inlet cover 50 is fixedly connected with the shell 10, an air inlet hole 51 communicated with the air inlet 13 is further formed in the air inlet cover 50, and the filter screen 40 is located between the air inlet cover 50 and the hollow mounting plate 30.

in this embodiment, the external air passes through the air inlet 51, the filter screen 40 and the hollow mounting plate 30 in sequence and enters the first accommodating cavity 11, the air inlet 51 and the filter screen 40 can prevent large particles in the air from entering the first accommodating cavity 11 to cause the damage of the low-noise blower.

Further, the low noise hair dryer further includes a first bracket 60 and a second bracket 70, the first bracket 60 is received in the first receiving cavity 11 and fixedly connected to the housing 10, the second bracket 70 is received in the first receiving cavity 11 and fixedly connected to the housing 10, and the first bracket 60 and the second bracket 70 clamp the heat generating member 20.

In the present embodiment, the first bracket 60 and the second bracket 70 are made of a heat-resistant material, the first bracket 60 and the second bracket 70 sandwich the heat generating member 20 so that the heat generating member 20 is firmly mounted in the first receiving chamber 11, when the heat generating member 20 starts to operate, the heat generating member 20 generates a large amount of heat, and the first bracket 60 and the second bracket 70 can receive the heat generated by the heat generating member 20.

Further, the low-noise hair drier further comprises a temperature protection device 80, the temperature protection device 80 is accommodated in the first accommodating cavity 11, the temperature protection device 80 is fixedly connected with the first support 60, and the temperature protection device 80 is electrically connected with the circuit board 121.

In this embodiment, the temperature protection device 80 is a temperature sensor, when the heating element 20 starts to operate, the heating element 20 generates a large amount of heat, the temperature in the first receiving cavity 11 starts to rise, the temperature of the temperature protection device 80 also starts to rise, when the temperature of the temperature protection device 80 is higher than a maximum temperature preset value, the low-noise blower stops operating, the circuit board 121 is powered off, the heating element 20 stops operating, and when the temperature of the temperature protection device 80 drops to an operating temperature preset value, the low-noise blower can continue to operate.

Further, the low-noise hair drier further comprises an inner sleeve 90, the inner sleeve 90 is accommodated in the first accommodating cavity 11 and is fixedly connected with the outer shell 10, a hollow shielding plate 91 is arranged at one end of the inner sleeve 90, and the hollow shielding plate 91 is accommodated in the air outlet 14.

In the present embodiment, the external air is heated by the heat generating member 20 and then blown out of the low noise blower through the hollow shielding plate 91.

Further, the low-noise hair drier further comprises a motor support 100, a third accommodating cavity 92 communicated with the first accommodating cavity 11 is arranged in the inner sleeve 90, and the motor support 100 is accommodated in the third accommodating cavity 92 and fixedly connected with the inner sleeve 90; the low-noise hair drier further comprises a brushless motor assembly 110, a fourth accommodating cavity 101 communicated with the third accommodating cavity 92 is formed in the motor support 100, the brushless motor assembly 110 is partially accommodated in the fourth accommodating cavity 101 and fixedly connected with the motor support 100, and the brushless motor assembly 110 is electrically connected with the circuit board 121.

In this embodiment, when the low noise hair dryer is operated, the brushless motor assembly 110 starts to rotate to suck external air from the air inlet hole 51 into the first receiving cavity 11, the heat generating member 20 is disposed at a position close to the air inlet 13, the heat generating member 20 is located between the brushless motor assembly 110 and the air inlet 13, at this time, the external air is not accelerated and is not fast enough through the brushless motor assembly 110, when the external air passes through the heat generating member 20, no large noise is generated and the heating efficiency of the heat generating member 20 to the external air is high, the external air passes through the heat generating member 20 and enters the fourth receiving cavity 101 to be accelerated by the brushless motor assembly 110, and the accelerated external air passes through the third receiving cavity 92 and is blown out of the low noise hair dryer through the hollow shielding plate 91; when the external air passes through the heat generating member 20 and enters the fourth receiving cavity 101 to be accelerated by the brushless motor assembly 110, the brushless motor assembly 110 is disposed at a position close to the air outlet 14, so that the external air blown out of the low-noise blower has a faster air speed and a larger air volume.

Further, the low-noise hair dryer further includes a magnetic ring 120, the magnetic ring 120 is accommodated in the air outlet 14, and the magnetic ring 120 is disposed between the hollow shielding plate 91 and the housing 10.

In this embodiment, the magnetic ring 120 is respectively and fixedly connected to the housing 10 and the hollow shielding plate 91, and the magnetic ring 120 eliminates a gap between the hollow shielding plate 91 and the housing 10; the magnetic ring 120 is used to connect external accessories of the low noise blower, such as: an air outlet cylinder.

further, a through hole 15 communicated with the second receiving cavity 12 is further formed in the housing 10.

In this embodiment, when the brushless motor assembly 110 is operated, the external air enters the second receiving cavity 12 through the through hole 15, passes through the third receiving cavity 92, and is finally blown out of the low-noise blower through the hollow shielding plate 91, and the external air can cool the circuit board 121 in this process; the external air introduced into the second receiving chamber 12 from the through hole 15 can increase the air output of the low noise blower.

of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.