CN205214538U - Hair drier - Google Patents

Abstract

The utility model relates to a blast apparatus technical field especially relates to a hair-dryer. The utility model discloses a hair drier, including casing and the impeller that is used for the blast air, the impeller is rotatable to be set up in the inside of casing, still includes 2 at least water conservancy diversion pieces, and the water conservancy diversion piece is arranged in impeller tip and water conservancy diversion piece and is arranged along the circumferencial direction of impeller. The utility model discloses a hair drier, two adjacent water conservancy diversion pieces form airflow channel between it, make the air current flow along this airflow channel, avoid the air current to produce the torrent phenomenon when casing internal flow, and the air is smooth and easy at casing internal flow, and the noise reduction reduces the resistance of gas when casing internal flow by a wide margin, reduces the energy consumption of drive impeller pivoted motor.

Description

a hair dryer

technical field

The utility model relates to the technical field of air blowing equipment, in particular to a hair dryer.

Background technique

The hair dryer is mainly used for drying and shaping of hair, but it can also be used for local drying, heating and physical therapy in laboratories, physiotherapy rooms, industrial production, and art. Hair dryers are mostly composed of housings, handles, motors, fan blades, heating elements, windshields, switches, power cords, etc. The hair dryer drives the rotor by the motor to drive the fan blades to rotate. When the fan blades rotate, air is sucked in from the air inlet, and the resulting centrifugal airflow is blown out by the front nozzle of the fan cylinder. The air flow of the existing hair dryer is prone to turbulence when flowing inside the shell, the air flow resistance is relatively large, and the energy consumption of the motor is high; in addition, because the air does not flow smoothly inside the shell, the air vibrates under pressure and generates large noise.

Utility model content

The purpose of the utility model is to provide a hair dryer aiming at the deficiencies of the prior art, the air flows smoothly inside the casing, the resistance is low, and the generated noise is low.

In order to achieve the above object, a hair dryer of the present invention includes a casing and an impeller for blowing air. The impeller is rotatably arranged inside the casing, and at least two guide vanes are arranged on the sides of the impeller. On the outer side of the circumference, the guide vanes are arranged along the circumferential direction of the impeller.

Preferably, it also includes a guide part fixed inside the casing, the guide part is provided with a support cylinder, the support cylinder is arranged at one end of the impeller, and the guide vane is fixed on the support cylinder along the circumferential direction Support cylinder.

Preferably, the deflector includes a straight portion, and one end of the straight portion close to the impeller is provided with a drainage end, and the angle formed between the drainage end and the straight portion is greater than 10 degrees and less than or equal to 90 degrees.

Preferably, the drainage end part and the straight part are transitionally connected through a circular arc part.

Preferably, 8, 9, 10, 11 or 12 guide vanes are uniformly arranged on the support cylinder, and there is a gap between the guide vanes and the inner wall of the casing.

Preferably, the guide vanes are arranged on the inner wall of the housing, and 8, 9, 10, 11 or 12 guide vanes are arranged along the circumferential direction of the inner wall of the housing.

Preferably, the impeller is arranged between the deflector and the air inlet of the blower.

Preferably, the deflector is arranged between the impeller and the air inlet of the blower.

Preferably, guide vanes are arranged at both the air inlet end and the air outlet end of the impeller.

Preferably, the impeller is provided with blades, and the number of blades is the same as the number of guide vanes.

Beneficial effects of the utility model: a hair dryer of the utility model forms an airflow channel between two adjacent deflectors, so that the airflow flows along the airflow channel, and avoids turbulence when the airflow flows inside the housing , the air flows smoothly inside the shell, reduces noise, greatly reduces the resistance of the gas flowing inside the shell, and reduces the energy consumption of the motor driving the impeller.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the present utility model.

Fig. 2 is a three-dimensional structural schematic diagram of the flow guiding part and the flow guiding plate of the first embodiment of the present invention.

Fig. 3 is a schematic diagram of the three-dimensional structure of Embodiment 2 of the present utility model.

Fig. 4 is a schematic diagram of the three-dimensional structure of Embodiment 3 of the present invention.

Fig. 5 is a three-dimensional structural schematic diagram of Embodiment 4 of the present utility model.

Reference signs include:

1—shell

2—impeller 21—blade

3—baffle

31—straight portion 32—arc portion 33—drainage end

4—Guide part 41—Support cylinder

5—Motor.

detailed description

A hair dryer of the utility model can guide the flow direction of the wind, avoid or reduce the eddy current phenomenon when the wind flows inside the casing 1, reduce the resistance when the wind flows, and reduce the energy consumption of the motor 5 that provides power for the rotation of the impeller 2. It is convenient to increase the air output of the hair dryer.

Below in conjunction with accompanying drawing, the utility model is described in detail.

Embodiment one.

As shown in Figure 1, a hair dryer of the present invention includes a housing 1 and an impeller 2 for blowing air. The flow vane 3 is arranged outside the circumference of the impeller 2, and the guide vane 3 is arranged along the circumferential direction of the impeller 2; the rotation of the impeller 2 forms a negative pressure area inside the housing 1, and the air outside the housing 1 passes through the air inlet of the blower It is sucked into the casing 1, pushed by the impeller 2, and blown out from the air outlet of the blower, thus forming an airflow that enters from the air inlet, passes through the impeller 2, and then passes through the air outlet; two adjacent The deflectors 3 form an air flow channel between them, so that the air flow flows along the air flow channel, avoiding turbulence when the air flow flows inside the housing 1, reducing noise, and greatly reducing the resistance of the gas flowing inside the housing 1 , effectively avoiding the loss caused by turbulent flow and eddy current, driven by the motor 5 of the same power, the hair dryer of the present utility model produces a larger air volume.

Preferably, as shown in FIG. 2 , it also includes a guide member 4 fixed inside the casing 1, the guide member 4 is provided with a support cylinder 41, the support cylinder 41 is arranged at one end of the impeller 2, and the guide The baffles 3 are fixed to the support cylinder 41 along the circumferential direction of the support cylinder 41, the baffles 3 can be integrally formed with the support cylinder 41, specifically, two adjacent baffles 3 together with the The outer walls of the support cylinder 41 jointly form an air flow channel, and the air flow flows along the air flow channel to avoid turbulent flow when the air flow flows inside the housing 1 and further reduce the resistance of the gas flowing inside the housing 1 . Further preferably, the support cylinder 41 is uniformly provided with 8, 9, 10, 11 or 12 guide vanes 3 , and there is a gap between the guide vanes 3 and the inner wall of the casing 1 .

Preferably, the deflector 3 includes a straight part 31, the extension plane of the straight part 31 is parallel to the axial direction of the support cylinder 41 and perpendicular to the outer wall of the support cylinder 41, and the straight part 31 is close to the impeller 2 One end is provided with a drainage end portion 33, and the angle formed between the drainage end portion 33 and the straight portion 31 is greater than 10 degrees and less than or equal to 90 degrees. After the airflow passes through the impeller 2, it will rotate with the impeller 2 at the same time. Under the guidance of the guide vane 3, the airflow enters the airflow channel from the guide end 33, and passes through the guide vane 3 through the straight part 31. When the airflow rotates The kinetic energy of the kinetic energy generates a partial velocity along the flow direction of the airflow under the action of the drainage end 33, thereby increasing the velocity of the gas flow, and further improving the air volume of the hair dryer of the present invention. Further preferably, the drainage end portion 33 is transitionally connected to the straight portion 31 through the arc portion 32 .

Preferably, the impeller 2 is provided with blades 21, and the number of the blades 21 is the same as that of the guide vanes 3; At the same time, each bundle of air flows into an air flow channel to avoid turbulent flow and further reduce the resistance of the gas flowing inside the housing 1 .

Embodiment two.

As shown in Figure 3, the difference between this embodiment and Embodiment 1 is that the guide vanes 3 are arranged on the inner wall of the housing 1, and 8, 9, 10, 11 or 12 guide vanes 3 are arranged along the housing. 1. Arranged in the circumferential direction of the inner wall, two adjacent flow deflectors 3 together with the inner wall of the housing 1 between them form an airflow channel. The turbulent flow phenomenon reduces the resistance of the gas flowing inside the casing 1, and is convenient for further increasing the air volume.

Preferably, as shown in Figure 3, the impeller 2 is arranged between the guide vane 3 and the air inlet of the blower, and the air flow enters the air flow passage after being pushed by the impeller 2, and the air flow flows along the air flow passage to prevent the air flow from rotating with the impeller 2 , to avoid turbulence in the airflow, and further reduce the resistance of the gas flowing inside the casing 1 .

The rest of this embodiment is the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here.

Embodiment three.

As shown in FIG. 4 , the difference between this embodiment and the second embodiment is that the deflector 3 is arranged between the impeller 2 and the air inlet of the blower. After the impeller 2 rotates, most of the gas in the airflow is pushed to the air outlet by the impeller 2, and a small amount of gas is pushed back to the air inlet by the impeller 2. After the airflow enters the impeller 2 through the airflow channel formed by two adjacent guide vanes 3, it can Prevent the gas from being pushed back to the air inlet by the impeller 2, reduce the air inlet resistance, and further reduce the resistance of the gas flowing inside the housing 1.

The rest of this embodiment is the same as that of Embodiment 2, and the features not explained in this embodiment are all explained in Embodiment 1, and will not be repeated here.

Embodiment four.

As shown in Figure 5, the difference between this embodiment and the second embodiment is that the air inlet end and the air outlet end of the impeller 2 are arranged with deflectors 3, and the end of the impeller 2 near the air inlet is the air inlet end. The end far away from the air inlet is the air outlet; the air flow enters the impeller 2 through the air inlet, and is pushed out by the impeller 2 from the air outlet, and guide vanes 3 are arranged at the air inlet and outlet of the impeller 2, which can avoid Before the airflow enters the impeller 2, it is pushed back to the air inlet by the impeller 2, and it can also prevent the airflow from rotating with the impeller 2 when it is pushed out by the impeller 2, greatly reducing the air inlet resistance and air outlet resistance, and avoiding the turbulence of the gas inside the housing 1. The resistance when the gas flows inside the casing 1 is reduced, and the energy consumption of the motor 5 driving the impeller 2 to rotate is reduced.

The rest of this embodiment is the same as that of Embodiment 2, and the features not explained in this embodiment are all explained in Embodiment 1, and will not be repeated here.

To sum up, it can be seen that the utility model has the above-mentioned excellent characteristics, so that it can improve the performance that is not available in the prior art in use, and has practicality, and becomes a product with great practical value.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (10)

1. A hair dryer, comprising a housing (1) and an impeller (2) for blowing air, the impeller (2) is rotatably arranged inside the housing (1), characterized in that it also includes at least 2 guides The guide vane (3) is arranged outside the circumference of the impeller (2), and the guide vane (3) is arranged along the circumferential direction of the impeller (2). 2. A hair dryer according to claim 1, characterized in that it further comprises a flow guide part (4) fixed inside the housing (1), and the flow guide part (4) is provided with a support cylinder (41 ), the support cylinder (41) is arranged at one end of the impeller (2), and the deflector (3) is fixed to the support cylinder (41) along the circumferential direction of the support cylinder (41). 3. A hair dryer according to claim 2, characterized in that: the deflector (3) includes a straight part (31), and the end of the straight part (31) close to the impeller (2) is provided with a drainage end part (33), the angle formed by the drainage end part (33) and the straight part (31) is greater than 10 degrees and less than or equal to 90 degrees. 4 . The hair dryer according to claim 3 , characterized in that: the drainage end ( 33 ) is transitionally connected to the straight portion ( 31 ) through a circular arc portion ( 32 ). 5. A hair dryer according to claim 2, characterized in that 8, 9, 10, 11 or 12 guide vanes (3) are uniformly arranged on the support cylinder (41), and the guide vanes There is a gap between (3) and the inner wall of the casing (1). 6. A hair dryer according to claim 1, characterized in that: the deflector (3) is arranged on the inner wall of the housing (1), and 8, 9, 10, 11 or 12 of the deflectors ( 3) Arranged along the circumferential direction of the inner wall of the casing (1). 7. The hair dryer according to claim 1, characterized in that: the impeller (2) is arranged between the deflector (3) and the air inlet of the hair dryer. 8. The hair dryer according to claim 1, characterized in that: the deflector (3) is arranged between the impeller (2) and the air inlet of the hair dryer. 9. The hair dryer according to claim 1, characterized in that: the air inlet end and the air outlet end of the impeller (2) are both arranged with deflectors (3). 10. The hair dryer according to claim 1, characterized in that: the impeller (2) is provided with blades (21), and the number of blades (21) is the same as the number of guide vanes (3).