CN212036420U

CN212036420U - Electric hair drier

Info

Publication number: CN212036420U
Application number: CN202020189066.0U
Authority: CN
Inventors: 冯德池
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-12-01
Anticipated expiration: 2030-02-20

Abstract

The utility model discloses an electric hair drier, which comprises a casing, wherein the front end of the casing is connected with a wind gathering ring, a second cold wind channel is arranged between the wind gathering ring and the front end face of the casing, and a first wind inlet and outlet is arranged between the wind gathering ring and the inner wall of the casing; the bottom of the machine shell is connected with a handle; the casing is provided with an annular cavity; a first cold air channel penetrating through the front and the rear of the shell is arranged in the center of the shell, and a partition plate is arranged in the annular cavity, so that a hollow heat insulation layer positioned on the outer side and a hot air channel positioned on the inner side are formed in the annular cavity; the heating body, the motor and the main control panel are arranged in the handle from top to bottom, and the motor is connected with the fan blade; the inner wall of the handle at the outer side of the main control panel is provided with an air net, and the handle at the air net is provided with a second air inlet and outlet. The hollow heat insulation layer is arranged on the casing of the electric hair drier, so that the temperature of the casing of the electric hair drier is effectively reduced; the structure that the double cold air channels and the hot air channel are polymerized to the air outlet is adopted, so that the hot air is more stable, and the cold air quantity is larger; the function of automatically cleaning sundries is realized.

Description

Electric hair drier

Technical Field

The utility model relates to a domestic appliance especially relates to a hairdryer.

Background

The electric hair drier in the prior art is not provided with a heat insulation layer, so that the surface temperature of a shell is too high, and the existing electric hair drier has no polymerization structure of double cold air channels and a hot air channel, so that the hot air stability is poor, and the cold air volume is relatively small; the main control panel of the existing hair dryer has obvious temperature rise, can be stopped due to automatic protection, and even can cause damage; moreover, the existing electric hair drier has no function of automatically cleaning sundries. Therefore, the development of a hair dryer becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hairdryer for solving the above insufficiency.

The above object of the present invention is achieved by the following technical solutions: an electric hair drier comprises a machine shell,

the front end of the shell is connected with an air gathering ring, a second cold air channel is arranged between the air gathering ring and the front end face of the shell, and a first air inlet and outlet is arranged between the air gathering ring and the inner wall of the shell;

the rear end of the shell is provided with an installation groove, a PCB and an operation panel, and the PCB is provided with a control switch and is exposed on the operation panel; the bottom of the machine shell is connected with a handle; the shell is in a hollow cylinder shape and is provided with an annular cavity, and the handle is in a tubular shape;

a first cold air channel penetrating through the front and the rear of the shell is arranged in the center of the shell, a partition plate is arranged in the annular cavity, a hollow heat insulation layer positioned on the outer side and a hot air channel positioned on the inner side are formed in the annular cavity, a bottom port of the hot air channel is communicated with the handle, and a front port of the hot air channel is converged with the second cold air channel and communicated with the first air inlet and outlet;

the heating body, the motor and the main control panel are arranged in the handle from top to bottom, the motor is connected with the fan blades, vibration-proof rubber is arranged on the inner wall of the handle outside the motor, and an air duct gap is formed between the vibration-proof rubber and the motor; the main control board is connected with the PCB through a control line and is connected with a power line; and an air net is arranged on the inner wall of the handle outside the main control panel, and a second air inlet and outlet is arranged on the handle at the air net.

Furthermore, an inwards concave iron ring is arranged on the front face of the wind gathering ring and used for connecting the wind nozzle.

Furthermore, a negative ion generator is arranged in the hollow heat insulation layer, and a negative ion release hole communicated with the hot air channel is formed in the partition plate.

The utility model discloses a theory of operation:

when the electric hair drier is normally used, the power cord is connected with a power supply, the power switch is turned on, and the main control panel of the electric hair drier is electrified. The main control board is connected with the PCB board through a control line, and the air quantity and the heat quantity are adjusted through a control switch. The motor operates to drive the fan blades, wind passes through the air inlet, the air net, the main control panel, the air duct gap, the heating body and the hot air channel in sequence, then is converged with the first cold air channel and the second cold air channel at the air outlet, and finally is blown out through the wind gathering ring.

When the automatic cleaning function is used, the main control panel controls the motor to drive the fan blades to rotate reversely, and air is blown out from the air inlet, the hot air channel, the heating body, the air channel gap, the main control panel, the air net and the air outlet in sequence and is cleaned.

And simultaneously, the utility model discloses a cavity insulating layer separates hot air channel and casing, connects the tuyere of various differences through the indent hoop.

Compared with the prior art, the utility model the advantage be:

1. the utility model discloses set up the cavity insulating layer on the casing, effectively reduced the casing temperature of hairdryer.

2. The structure that the double cold air channels and the hot air channel are converged to the air outlet is adopted, so that hot air is more stable, and the cold air quantity is larger.

3. The second air inlet and outlet on the handle can not be disassembled, the air inlet is changed into air outlet by directly utilizing the motor to reversely rotate, impurities are removed, and the function of automatically removing the impurities can be realized.

4. The main control board is arranged at the second air inlet and outlet, and the temperature rise of the control board is reduced by air inlet, so that the main control board is better protected.

5. The wind gathering ring is provided with an inwards concave iron ring which is fixedly connected with the wind nozzle better.

Drawings

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a cross-sectional view taken at a-a in fig. 2.

Fig. 4 is a schematic structural diagram of the middle housing of the present invention.

Fig. 5 is a schematic view of the convergence of the double cold air channels and the hot air channels of the present invention.

Fig. 6 is a schematic structural view of the middle wind gathering ring of the present invention.

In the drawings, 1-an operation panel; 2-a first cold air channel; 3-control the switch; 4-a handle; 5-a second air inlet and outlet; 6-wind gathering ring; 7-a second cold air channel; 8-a machine shell; 9-a PCB board; 10-negative ion generator; 11-a hollow insulating layer; 12-hot air channel; 13-a first air inlet/outlet; 14-a heating element; 15-vibration-proof rubber; 16-duct gap; 17-a main control panel; 18-wind net; 19-a power line; 20-a control line; 21-fan blades; 22-a motor; 23-a concave iron ring; 24-a power switch; 25-a separator; 26-negative ion release holes.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, a hair dryer comprises a cabinet 8,

the front end of the machine shell 8 is connected with an air gathering ring 6, a second cold air channel 7 is arranged between the air gathering ring 6 and the front end face of the machine shell 8, and a first air inlet and outlet 13 is arranged between the air gathering ring 6 and the inner wall of the machine shell 8;

the rear end of the shell 8 is provided with a mounting groove, a PCB is mounted on the mounting groove, the PCB is provided with an operation panel 1, and the PCB is provided with a control switch 3 and is exposed on the operation panel 1; the bottom of the machine shell 8 is connected with a handle 4; the shell 8 is in a hollow cylinder shape and is provided with an annular cavity, and the handle 4 is in a tubular shape;

a first cold air channel 2 penetrating through the front and the rear of the shell 8 is arranged in the center of the shell 8, a partition plate 25 is arranged in the annular cavity, a hollow heat insulation layer 11 positioned on the outer side and a hot air channel 12 positioned on the inner side are formed in the annular cavity, the bottom port of the hot air channel 12 is communicated with the handle 4, and the front port of the hot air channel 12 is converged with the second cold air channel 7 and communicated with a first air inlet and outlet 13;

a heating body 14, a motor 22 and a main control panel 17 are arranged in the handle 4 from top to bottom, the motor 22 is connected with the fan blade 21, the inner wall of the handle 4 at the outer side of the motor 22 is provided with anti-vibration rubber 15, and an air duct gap 16 is arranged between the anti-vibration rubber 15 and the motor 22; the main control board 17 is connected with the PCB board through a control line and is connected with a power line 19; and an air net 18 is arranged on the inner wall of the handle 4 at the outer side of the main control panel 17, and a second air inlet and outlet 5 is arranged on the handle at the position of the air net 18.

Furthermore, the front surface of the wind gathering ring 6 is provided with an inwards concave iron ring for connecting a wind nozzle.

Furthermore, the hollow heat insulation layer 11 is provided with a negative ion generator 10, and the partition plate 25 is provided with a negative ion release hole 26 communicated with the hot air channel 12.

The utility model discloses a theory of operation:

when the electric hair drier is normally used, the power cord 19 is connected with a power supply, the power switch 24 is turned on, and the main control panel 17 of the electric hair drier is electrified. The main control board 17 is connected with the PCB 9 through a control line 20, and the air quantity and the heat quantity are adjusted through the control switch 3. The motor 22 operates to drive the fan blade 21, and the wind passes through the wind inlet 5, the wind net 18, the main control panel 17, the wind channel gap 16, the heating body 14 and the hot wind channel 12 in sequence, then merges with the first cold wind channel 2 and the second cold wind channel 7 at the wind outlet 13, and finally is blown out through the wind gathering ring 6.

When the automatic cleaning function is used, the main control panel 17 controls the motor 22 to drive the fan blade 21 to rotate reversely, and air is blown out from the air inlet 13, the hot air channel 12, the heating body 14, the air channel gap 16, the main control panel 17, the air net 18 and the air outlet 5 in sequence to be cleaned.

And simultaneously, the utility model discloses a cavity insulating layer 11 separates hot air duct 12 and casing 8, connects the tuyere of various differences through indent hoop 23.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a hairdryer, includes the casing, its characterized in that:

2. A hair dryer according to claim 1, characterized in that: the front surface of the wind gathering ring is provided with an inwards concave iron ring for connecting a wind nozzle.

3. A hair dryer according to claim 1, characterized in that: the hollow heat insulation layer is internally provided with a negative ion generator, and the clapboard is provided with a negative ion release hole communicated with the hot air channel.