CN214386473U

CN214386473U - Hair dryer with closed rear end

Info

Publication number: CN214386473U
Application number: CN202021717587.5U
Authority: CN
Inventors: 林勇
Original assignee: Wenzhou Pritech Trade Co ltd
Current assignee: Wenzhou Pritech Trade Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-10-15
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a rear end confined hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan assembly, its characterized in that in the handle: the front end of the air duct is an air outlet end, the rear end of the air duct is sealed, an air guide piece is arranged in an inner cavity of the air duct, an air outlet is formed in the front end of the air guide piece, the fan assembly pressurizes air flow entering the handle, pressurized high-speed air flow enters the air duct, and the air outlet of the air guide piece blows out the air outlet end of the air duct. The utility model provides a hair dryer of brand-new structure, the dryer rear end of hair dryer seals, does not utilize the coanda effect with natural wind and hot-blast mixture, and the hot-blast temperature that consequently blew off can be set for at will, easy control, not only safe and reliable, convenient to use.

Description

Hair dryer with closed rear end

Technical Field

The utility model relates to a small household electrical appliance especially relates to a hair dryer for blowing.

Background

Traditional hair-dryer includes dryer and handle, installs a fan unit in the dryer, during the use, often has the hair to be inhaled in the dryer, twines on the fan unit. There is a solution in the prior art to provide a fan assembly in a handle, such as utility model chinese patent No. 201310111469.8, published as 2016/8/3, and a hair dryer comprising a body, a fan unit and a duct for conveying an air flow to the body, wherein the duct comprises an air flow inlet positioned at or near an end of the duct remote from the body, and the fan unit is disposed in the duct between the inlet and the body, wherein a portion of the duct is lined with a material, and wherein the lined portion of the duct is disposed between the fan assembly and the body, wherein the hair dryer comprises an air flow path extending through the body, and a primary air flow path extending from the air flow inlet to an air flow outlet, wherein the air flow path is nested or embedded in the primary air flow path, and a heater is provided, the heater being located in the primary air flow path in the body, and the airflow flow path is in thermal communication with the heater. In the above scheme, the middle part of the body is of a hollow structure, air is exhausted from the periphery of the body, the front end of the hollow structure of the body is an air outlet end, the rear end of the hollow structure of the body is an air inlet end, and natural air can be supplemented to the air outlet by utilizing the coanda effect. In the scheme, because the natural wind is mixed with the blown hot wind, the temperature of the blown hot wind is too low and is difficult to increase.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a hair dryer which is controllable in hot air, convenient to use and small in volume.

According to the utility model provides a pair of rear end confined hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan assembly in the handle, the front end of dryer is the air-out end, the rear end of dryer is sealed, be provided with an air guide in the inner chamber of dryer, the front end of air guide is formed with the air outlet, fan assembly will get into air current pressurization in the handle, the high-speed gas flow after the pressurization gets into the dryer, pass through the air outlet of air guide is followed the air-out end of dryer blows out.

According to the utility model provides a pair of rear end confined hair dryer still has following attached technical characterstic:

the fan is characterized in that the rear end of the air duct is provided with a sealing cover, and the sealing cover seals the rear end of the air duct.

The sealing cover is connected with the air duct through a connecting piece.

Further comprising a power button and a plurality of indicator light bars arranged at the periphery of the power button are arranged on the sealing cover.

Further comprising, install the circuit board on the connecting piece, be provided with the host computer switch on the circuit board, power button leans on the host computer switch.

The host switch further comprises a concave part formed on the sealing cover, the power button is arranged in the concave part, and a sealing disc is arranged between the power button and the host switch.

Further comprising, a sealing strip is arranged between the connecting piece and the air duct and the sealing cover.

Further included, the air guide includes an outer wall and an inner wall, the outer wall with form annular wind channel between the inner wall, the front end of outer wall forms inside arc portion, the front end of inner wall forms outside arc portion, two the relative setting of arc portion forms annular air outlet, annular air outlet is annular crack structure.

The air guide piece is characterized in that an inner cavity is formed in the middle of the air guide piece, an air inlet hole is formed in the rear end of the inner cavity of the air guide piece, and a central air outlet hole is formed in the front end of the inner cavity of the air guide piece.

According to the utility model provides a pair of rear end confined hair dryer compares with prior art and has following advantage: the utility model provides a hair dryer of brand-new structure, the dryer rear end of hair dryer seals, does not utilize the coanda effect with natural wind and hot-blast mixture, and the hot-blast temperature that consequently blew off can be set for at will, easy control, not only safe and reliable, convenient to use.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a cross-sectional view of the middle wind tube of the present invention.

Fig. 3 is a front view of the middle wind guide of the present invention.

Fig. 4 is a sectional view of the air guide of the present invention.

Fig. 5 is a rear view of the present invention.

Fig. 6 is an enlarged cross-sectional view of the middle cap of the present invention.

Detailed Description

For the purpose of clearly illustrating the aspects of the present invention, preferred embodiments are given below in conjunction with the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

As shown in fig. 1 to 6, the utility model provides a pair of rear end confined hair dryer, including dryer 1 with the handle 2 that dryer 1 is connected, be provided with fan assembly 3 in the handle 2, the front end of dryer 1 is the air-out end, the rear end of dryer 1 is sealed, be provided with an air guide 4 in the inner chamber of dryer 1, the front end of air guide 4 is formed with the air outlet, fan assembly 3 will get into air current pressurization in the handle 2, and the high velocity air after the pressurization gets into dryer 1, passes through air guide 4's air outlet is followed the air-out end of dryer 1 blows out. The utility model provides a dryer 1 rear end is confined, does not utilize the coanda effect, just also does not have the natural wind to supply to hot-blast, and the hot-blast temperature that blows off is controllable.

Referring to fig. 1 to 6, in the above embodiments of the present invention, it further includes that a sealing cover 6 is disposed at the rear end of the air duct 1, and the sealing cover 6 seals the rear end of the air duct 1. The sealing cover 6 is buckled at the rear end of the air duct 1, so that the rear end of the air duct 1 is sealed, and natural air is prevented from entering the air duct.

Referring to fig. 1 to 6, in the above embodiment of the present invention, it is further included that the cover 6 is connected to the air duct 1 through a connector 60. A sealing strip 601 is arranged between the connecting piece 60 and the air duct 1 and the sealing cover 6. The utility model discloses a connecting piece 60 plays the effect of connecting closing cap 6 and dryer 1, through connecting piece 60 makes things convenient for the installation of two part structures for it is more firm to connect. The sealing strip 601 plays a role of sealing and prevents air leakage.

Referring to fig. 5, in the above embodiment of the present invention, it is further included that a power button 61 and a plurality of indicator light bars 62 located around the power button 61 are disposed on the cover 6. The power button 61 is used for controlling the on-off of the power supply. The indicator light bars 62 are provided with two, one is for temperature indication, and the other is for wind speed indication. The two indicator light bars 62 are arc-shaped and are lighted with different lengths according to sizes. The indicator light bar 62 is composed of a plurality of light sources and a light guide ring matched with the light sources, and the light guide ring scatters light of the light sources into a multi-section structure, so that the light is more attractive.

Referring to fig. 1 to 6, in the above embodiment of the present invention, it is further included that a circuit board 63 is installed on the connecting member 60, a host switch 631 is disposed on the circuit board 63, and the power button 61 abuts against the host switch 631. A recess 69 is formed in the cover 6, the power button 61 is disposed in the recess 69, and a sealing disc 68 is disposed between the power button 61 and the main body switch 631. The utility model discloses will circuit board 63 is fixed on the connecting piece 60, be provided with various circuits on the circuit board 63 for the work of control hair dryer. The utility model discloses be in with power button 61 setting on the closing cap 6, convenient operation. The recess 69 makes the whole more beautiful, and the power button 61 is installed in the recess 69 without misoperation. The sealing disc 68 seals the through hole at the power button 61 to prevent air leakage.

Referring to fig. 1 to 6, the above embodiments further include that the air outlet includes an annular air outlet 10 and a central air outlet 20, the front end periphery of the air duct 1 is formed with the annular air outlet 10, the front end center of the air duct 1 is formed with the central air outlet 20, the internal high-speed airflow of the air duct 1 is respectively blown out from the annular air outlet 10 and the central air outlet 20, and the airflow blown out from the annular air outlet 10 and the airflow blown out from the central air outlet 20 are mixed after a certain distance to form a cylindrical laminar airflow with enhanced air pressure. The specific distance in this embodiment is the shortest distance between the air outlet of the hair dryer and the hair when the user is in regular use. The utility model discloses well 14cm is the shortest distance of use section usually, and the distance of use section and scalp is too short, and hot-blast can cause the discomfort to the scalp, also inconvenient use. Therefore, the specific distance in the utility model is that the air current mixes after 14 cm. The above distance is an optimum distance. The air-out of prior art hair-dryer is that the air outlet wind pressure is the highest usually, then reduces gradually, and the wind pressure of use section is the wind pressure that is less than air outlet department, in order to improve the wind pressure of use section, then needs improve the wind pressure of air outlet, and the increase of wind pressure not only needs the motor of higher rotational speed, still need improve the structure in whole wind channel, and high wind pressure also means the noise increase of hair-dryer. The utility model discloses utilize annular air-out and central air-out integrated configuration for the air-out is mixing in the use section, makes the wind pressure of use section reach the highest, make full use of air current.

Referring to fig. 1 to 6, in the above embodiment of the present invention, it is further included that the wind guiding member 4 includes an outer wall 43 and an inner wall 44, an annular wind channel 101 is formed between the outer wall 43 and the inner wall 44, a front end of the outer wall 43 forms an inward arc portion 431, a front end of the inner wall 44 forms an outward arc portion 441, two of the arc portions are oppositely disposed to form the annular wind outlet 10, and the annular wind outlet 10 is in an annular crack structure. The utility model provides an annular air outlet 10 comprises two arc portions, is favorable to the wind-guiding for the air current blows off more smoothly. Annular air outlet 10 is annular crack structure for the high velocity air can blow off the use section that specific distance reformed air pressure strengthened. The outer wall 43 of the present invention is the outer shell of the wind guide 4, and the inner wall 44 may be an integral structure or may be composed of a plurality of components. In this embodiment, the inner wall 44 is formed by a support frame of the heating element 5 and a part of the inner wall connected to the outer wall 43, and the heating element 5 is first installed on the support frame, and then the support frame is clamped into the part of the inner wall, so that the support frame becomes a part of the inner wall. The above structure facilitates the installation of the heating assembly 5.

Referring to fig. 4, in the above embodiments of the present invention, it further includes that the

arc parts

431 and 441 are flow guide surfaces formed by multi-segment arc structures. The structure further improves the air guide effect.

Referring to fig. 1 to 6, the above embodiments of the present invention further include that the middle of the wind guide 4 forms an inner cavity, the rear end of the inner cavity of the wind guide 4 is provided with an air inlet 45, and the front end is provided with the central air outlet 20. The middle inner cavity of the air guide member 4 is a central air duct 201, and the high-speed airflow in the air duct 1 enters the central air duct 201 through the air inlet hole 45 and is finally blown out from the central air outlet hole 20.

Referring to fig. 1 to 4, in the above embodiment of the present invention, it further includes that a bell mouth 47 is formed in the middle of the front end of the wind guide 4, and the central air outlet 20 is located in the center of the bell mouth 47. The bell mouth 47 guides the airflow blown out from the central air outlet 20, so that the airflow blown out from the central air outlet 20 is better mixed with the airflow blown out from the annular air outlet 10.

Referring to fig. 1 and 2, in the above embodiment of the present invention, it is further included that a heating assembly 5 is disposed between the outer wall 43 and the inner wall 44, and the heating assembly 5 is located in the annular air duct 101. The heating component 5 is composed of a plurality of sheet-shaped heating sheets and heating wires wound on the heating sheets, and is clamped on the inner wall 44. The heating assembly 5 heats the air flow in the annular air duct 101.

In summary, the above-mentioned embodiments are only examples of the present invention, which are only used for illustrating the principles of the present invention and are not used for limiting the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rear end confined hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan assembly, its characterized in that in the handle: the front end of the air duct is an air outlet end, the rear end of the air duct is sealed, an air guide piece is arranged in an inner cavity of the air duct, an air outlet is formed in the front end of the air guide piece, the fan assembly pressurizes air flow entering the handle, pressurized high-speed air flow enters the air duct, and the air outlet of the air guide piece blows out the air outlet end of the air duct.

2. A closed-back hair dryer according to claim 1, wherein: the rear end of the air duct is provided with a sealing cover, and the sealing cover seals the rear end of the air duct.

3. A closed-back hair dryer according to claim 2, wherein: the sealing cover is connected with the air duct through a connecting piece.

4. A closed-back hair dryer according to claim 3, wherein: the sealing cover is provided with a power button and a plurality of indicator light bars located on the periphery of the power button.

5. A closed-back hair dryer according to claim 4, wherein: the connecting piece is provided with a circuit board, the circuit board is provided with a host switch, and the power button is abutted against the host switch.

6. A closed-back hair dryer according to claim 5, wherein: the cover is provided with a concave part, the power button is arranged in the concave part, and a sealing disc is arranged between the power button and the host switch.

7. A closed-back hair dryer according to claim 3, wherein: and a sealing strip is arranged between the connecting piece and the air duct and the sealing cover.

8. A closed-back hair dryer according to claim 1, wherein: the air guide piece comprises an outer wall and an inner wall, the outer wall with form the annular air duct between the inner wall, the front end of outer wall forms inside arc portion, the front end of inner wall forms outside arc portion, two the relative setting of arc portion forms annular air outlet, annular air outlet is annular crack structure.

9. A closed-back hair dryer according to claim 1, wherein: the middle part of the air guide member forms an inner cavity, the rear end of the inner cavity of the air guide member is provided with an air inlet hole, and the front end of the inner cavity of the air guide member is provided with a central air outlet hole.