CN219537699U

CN219537699U - Air duct structure of blower and blower using same

Info

Publication number: CN219537699U
Application number: CN202320482259.9U
Authority: CN
Inventors: 邹进山; 洪流
Original assignee: Shenzhen Jingxintai Houseware Co ltd
Current assignee: Shenzhen Jingxintai Houseware Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-08-18
Anticipated expiration: 2033-03-02

Abstract

The utility model relates to the technical field of blowers and discloses an air duct structure of the blower and the blower using the same, wherein the air duct structure of the blower comprises an air blowing part and a handheld part which are connected; the novel air conditioner is characterized in that an air inlet duct is arranged in the handheld part, a fan is arranged in the air inlet duct, an air inlet hole penetrating through the air inlet duct is formed in the outer wall of the handheld part, an air outlet duct communicated with the air inlet duct is arranged in the air blowing part, an air guide surface is arranged at the joint of the air inlet duct and the air outlet duct, the air in the air inlet duct is guided to regularly flow to the air outlet duct by the air guide surface, and a gas turbulence phenomenon does not exist at the joint between the air inlet duct and the air outlet duct, so that the gas flow rate in the air inlet duct is almost consistent with the gas flow rate in the air outlet duct, and the energy utilization efficiency of the fan for blowing is greatly improved.

Description

Air duct structure of blower and blower using same

Technical Field

The utility model relates to the technical field of blowers, in particular to an air duct structure of the blower and the blower using the same.

Background

The hair dryer can dry hair and assist in completing hair styling, and is an essential electrical product in the home and styling industries.

In the existing small-sized blower, the blower is usually arranged in the position of the handle, when the blower works, external air enters the interior of the handle from the air inlet hole on the handle, then flows upwards under the drive of the blower, finally impacts the corner to turn and is discharged outwards. Specifically, the phenomenon that the air flows in the process of irregularly striking the corners to cause disorder at the corners can cause a certain influence on the air outlet speed, and a certain loss is caused on useful energy, namely, the energy utilization efficiency of the blower in the existing small blower for blowing is lower.

Disclosure of Invention

The utility model aims to provide an air duct structure of a blower and the blower using the same, and mainly solves the technical problem that the energy utilization efficiency of a blower in the existing small blower is low.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an air duct structure of a blower comprises a blowing part and a handheld part which are connected; an air inlet channel is arranged in the handheld part, a fan is arranged in the air inlet channel, an air inlet hole penetrating through the air inlet channel is formed in the outer wall of the handheld part, an air outlet channel communicated with the air inlet channel is arranged in the air blowing part, and an air guiding surface used for guiding the air direction in the air inlet channel to flow in the air outlet channel is arranged at the joint of the air inlet channel and the air outlet channel.

In the above technical scheme, the shape of the air guiding surface is an arc-shaped curved surface.

Among the above-mentioned technical scheme, still include the wind scooper, the wind scooper includes air intake and air outlet, the air intake with the air inlet wind channel is linked together, the air outlet with the air outlet wind channel is linked together, the wind-guiding face set up in the inner wall of wind scooper and follow the inner wall arc of air intake extends to the inner wall of air outlet, so that the air intake with the air outlet is linked together.

In the above technical scheme, be provided with at least one heat-generating body in the air-out wind channel, the heat-generating body is used for the heating the temperature of the wind in the air-out wind channel, the wind-guiding face is followed the protruding reference column that is equipped with in direction in air-out wind channel, the reference column with the bulk phase location grafting of heat-generating body.

In the above technical scheme, the periphery of heat-generating body is provided with annular inner shell, the inner shell has the mesopore that runs through, the mesopore is at least a portion of air-out wind channel, the heat-generating body holding in the mesopore, the air outlet of wind scooper with the one end intercommunication of mesopore, just the wind scooper be provided with the one end of air outlet with inner shell sealing connection.

In the above technical scheme, the inner shell and the heating body jointly divide the air outlet duct into an inner duct and an outer duct arranged on the periphery of the inner duct.

In the above technical scheme, be provided with a plurality of holes that run through in the heat generating body, a plurality of the hole is for at least part of interior wind channel, the outer wall of heat generating body is protruding to be equipped with a plurality of fin, a plurality of the fin the inner wall of inner shell with the outer wall of heat generating body encloses jointly and establishes the louvre that forms a plurality of annular arrangements, a plurality of the louvre is at least part of outer wind channel.

In the above technical scheme, the included angle between the extending direction of the air inlet duct and the extending direction of the air outlet duct is an acute angle.

In the above technical scheme, the included angle between the central axis of the blowing part and the central axis of the handheld part is an acute angle, so that the included angle between the extending direction of the air inlet duct and the extending direction of the air outlet duct is an acute angle.

The utility model also provides a blower, which comprises the air duct structure of the blower.

Compared with the prior art, the air duct structure of the blower has the beneficial effects that:

according to the technical scheme, the air guide surface is arranged at the joint between the air inlet air duct and the air outlet air duct and is used for guiding air in the air inlet air duct to regularly flow towards the air outlet air duct, so that the gas turbulence phenomenon cannot exist at the joint between the air inlet air duct and the air outlet air duct, the gas flow velocity in the air inlet air duct can be almost consistent with the gas flow velocity in the air outlet air duct, and the energy utilization efficiency of the fan for blowing is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a blower according to an embodiment of the present utility model;

fig. 2 is a side view of a blower according to an embodiment of the present utility model;

FIG. 3 is a partial cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

fig. 5 is a schematic structural diagram of a wind scooper according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a heat-generating body according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an inner shell according to an embodiment of the present utility model.

The reference numerals are:

10. a blowing part; 20. a hand-held part; 201. an air inlet hole; 30. an air inlet duct; 40. a blower; 50. an air outlet duct; 501. an inner air duct; 502. an outer air duct; 60. a wind scooper; 601. an air guiding surface; 602. an air inlet; 603. an air outlet; 604. positioning columns; 6041. positioning holes; 70. a heating element; 701. a heat sink; 80. an inner case; 801. a middle hole; 90. a heat radiation hole; 100. a control circuit board; 110. a switching key; 120. a temperature control key; 130. a power line; 140. and (5) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4 together, the present embodiment provides a blower, which mainly surrounds a duct structure in the blower for detailed description, the duct structure of the blower includes a blower portion 10 and a hand-held portion 20 connected to each other, an air inlet duct 30 is disposed in the hand-held portion 20, a blower 40 is disposed in the air inlet duct 30, a plurality of air inlets 201 penetrating into the air inlet duct 30 are disposed on an outer wall of the hand-held portion 20, an air outlet duct 50 is disposed in the blower portion 10, the air outlet duct 50 and the air inlet duct 30 are mutually communicated, and an air guiding surface 601 is disposed at a joint of the air inlet duct 30 and the air outlet duct 50, the air guiding surface 601 is in an arc-shaped curved surface, and the air guiding surface 601 is used for guiding air in the air inlet duct 30 to regularly flow toward the air outlet duct 50.

In operation, the blower 40 is started, and the external air automatically enters the air inlet duct 30 from the air inlet 201, then enters the air outlet duct 50 along the air guiding surface 601 and finally is discharged outwards, so that the user blows.

Specifically, by arranging the air guide surface 601, the connection part between the air inlet duct 30 and the air outlet duct 50 can not have the phenomenon of gas turbulence, so that the gas flow velocity in the air inlet duct 30 can be almost consistent with the gas flow velocity in the air outlet duct 50, and the energy utilization efficiency of the fan 40 for blowing is greatly improved.

Referring to fig. 3, the included angle between the central axis L1 of the blower 10 and the central axis L2 of the hand-held portion 20 is an acute angle, so that the included angle between the extending direction of the air inlet duct 30 and the extending direction of the air outlet duct 50 is an acute angle, and the acute angle design can enable the air in the air inlet duct 30 to smoothly enter the air outlet duct 50 after regularly striking the air guiding surface 601, and the acute angle design can enable the user to hold the end of the hand-held portion 20 more comfortably during use.

Referring to fig. 3 to 5, the blower of the present embodiment further includes a wind scooper 60, the wind scooper 60 is provided with an air inlet 602 and an air outlet 603, the air inlet 602 is communicated with the air inlet duct 30, the air outlet 603 is communicated with the air outlet duct 50, and the wind scooper 601 extends from the inner wall along the inner wall of the air inlet 602 to the inner wall of the air outlet 603, so that the air inlet 602 and the air outlet 603 are communicated with each other, and the air inlet duct 30 and the air outlet duct 50 are communicated with each other.

Referring to fig. 3 to 6, at least one heater 70 is disposed in the air outlet duct 50, wherein the heater 70 is at least one of a PTC heater or a resistive heater in the prior art heater 70. The heating element 70 can generate heat when energized, thereby raising the temperature of the air in the air outlet duct 50 and further realizing the function of hot air. The air guiding surface 601 is convexly provided with a positioning column 604 along the direction of the air outlet duct 50, the end part of the positioning column 604, which is far away from the air guiding surface 601, is provided with a positioning hole 6041, and the middle part of the heating element 70 is inserted into the positioning hole 6041, so that the positioning connection between the heating element 70 and the air guiding cover 60 is realized.

Referring to fig. 3, 4 and 7, the outer periphery of the heating element 70 is provided with an annular inner shell 80, the inner shell 80 has a central hole 801 passing therethrough, the central hole 801 is a part of the air outlet duct 50, the central hole 801 is communicated with the air outlet 603 of the air guiding cover 60, the heating element 70 is installed in the central hole 801, and one end of the air guiding cover 60 provided with the air outlet 603 is connected with the inner shell 80 in a sealing manner, so that the air flowing out from the air outlet 603 can only enter the central hole 801.

Referring to fig. 4, the inner case 80 and the heating element 70 together divide the air outlet duct 50 into an inner duct 501 and an outer duct 502, and the outer duct 502 surrounds the outer periphery of the inner duct 501. During air-out, wind that comes out from outer wind channel 502 can wrap up the wind that comes out from interior wind channel 501, make the wind that comes out from interior wind channel 501 more concentrated, when heat-generating body 70 generates heat, can blow hot-blast to appointed position more intensively, avoid hot-blast because diffusion and cause more heat loss all around outside immediately when leaving the hair-dryer, namely, through setting up outer wind channel 502, can improve the utilization ratio of heat-generating body 70's energy, in other words, under the same thermal demand of blowing, heat-generating body 70 can select for use less power also can satisfy user's user demand.

Referring to fig. 3, 4, 6 and 7, a plurality of through holes (not shown) are disposed in the heating element 70, the plurality of holes together form a honeycomb-shaped inner air duct 501, and the contact area between the heating element 70 and the air in the air outlet duct 50 can be increased by disposing the plurality of holes on the heating element 70, so as to improve the efficiency of the heating element 70 for heating the air. In addition, the outer wall of the heating element 70 is convexly provided with a plurality of cooling fins 701, the cooling fins 701 are used for cooling the heating element 70 to avoid burning out of the heating element 70 due to too fast temperature rise, and the cooling fins 701, the inner shell 80 and the outer wall of the heating element 70 are jointly surrounded to form a plurality of annular cooling holes 90, and the plurality of cooling holes 90 jointly form a part of the outer air duct 502.

Referring to fig. 1 to 4, the blower of the present embodiment further includes a control circuit board 100, a switch key 110, a temperature control key 120, a power cord 130, a filter 140, and so on. Wherein, the control circuit board 100 is disposed in the blowing part 10, and the control circuit board 100 is disposed at a position of the air guiding cover 60 facing away from the heating body 70, the switch key 110 and the temperature control key 120 are respectively installed on the hand-held part 20, the power cord 130 is connected at an end position of the hand-held part 20 far away from the blowing part 10, the power cord 130, the switch key 110 and the temperature control key 120 are respectively electrically connected with the control circuit board 100, the power cord 130 is used for connecting a home circuit, so that the control circuit board 100 can enter a working state, the control circuit board 100 can control the opening or closing of the fan 40 according to a signal of the switch key 110, the control circuit board 100 can also control whether the heating body 70 is started or closed according to a signal of the temperature control key 120, the filter screen 140 is disposed in the hand-held part 20, the filter screen 140 is ring-shaped, and the filter screen 140 covers a plurality of air inlet holes 201, so that when external air enters the air inlet duct 30 from the air inlet holes 201, the filter of the filter screen 140 is required, and larger particles in the external air are prevented from entering the inside of the blower, thereby ensuring that the fan 40 can operate reliably.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The air duct structure of the blower is characterized by comprising a blowing part and a handheld part which are connected; an air inlet channel is arranged in the handheld part, a fan is arranged in the air inlet channel, an air inlet hole penetrating through the air inlet channel is formed in the outer wall of the handheld part, an air outlet channel communicated with the air inlet channel is arranged in the air blowing part, and an air guiding surface used for guiding the air direction in the air inlet channel to flow in the air outlet channel is arranged at the joint of the air inlet channel and the air outlet channel.

2. The blower duct structure of claim 1, wherein: the shape of the air guide surface is an arc-shaped curved surface.

3. The blower duct structure of claim 2, wherein: the air guide cover comprises an air inlet and an air outlet, the air inlet is communicated with the air inlet duct, the air outlet is communicated with the air outlet duct, and the air guide surface is arranged on the inner wall of the air guide cover and extends to the inner wall of the air outlet along the arc shape of the inner wall of the air inlet so as to enable the air inlet to be communicated with the air outlet.

4. A blower duct structure according to claim 3, wherein: the air outlet duct is internally provided with at least one heating body, the heating body is used for heating the temperature of air in the air outlet duct, the air guide surface is convexly provided with a positioning column along the direction of the air outlet duct, and the positioning column is matched with the heating body for positioning and splicing.

5. The blower duct structure of claim 4, wherein: the periphery of heat-generating body is provided with annular inner shell, the inner shell has the mesopore that runs through, the mesopore is at least a portion of air-out wind channel, the heat-generating body holding in the mesopore, the air outlet of wind scooper with the one end intercommunication of mesopore, just the wind scooper be provided with the one end of air outlet with inner shell sealing connection.

6. The blower duct structure of claim 5, wherein: the inner shell and the heating body jointly divide the air outlet air duct into an inner air duct and an outer air duct arranged on the periphery of the inner air duct.

7. The blower duct structure of claim 6, wherein: the inner part of the heating body is provided with a plurality of through inner holes, the inner holes are at least one part of the inner air duct, the outer wall of the heating body is convexly provided with a plurality of radiating fins, the inner wall of the inner shell and the outer wall of the heating body are jointly surrounded to form a plurality of annularly arranged radiating holes, and the radiating holes are at least one part of the outer air duct.

8. The blower duct structure of claim 1, wherein: the included angle between the extending direction of the air inlet duct and the extending direction of the air outlet duct is an acute angle.

9. The blower duct structure of claim 8, wherein: the included angle between the central axis of the blowing part and the central axis of the handheld part is an acute angle, so that the included angle between the extending direction of the air inlet duct and the extending direction of the air outlet duct is an acute angle.

10. A hair dryer, characterized in that: a tunnel construction comprising a blower according to any one of claims 1 to 9.