CN215052532U - Hair drier - Google Patents

Abstract

The application relates to a hair dryer, which includes: the air conditioner comprises a shell, a motor, a fan, a blowpipe and a duct, wherein the motor is positioned in the shell, the fan is positioned in the shell and driven by the motor to rotate and generate airflow, the blowpipe is connected with one end, far away from an air inlet, of the shell, the duct is arranged in the shell and used for guiding the airflow to move towards the air outlet, the shell is provided with the air inlet, the blowpipe is provided with the air outlet, far away from the shell, and the air enters the shell from the air inlet to form airflow and is blown out from the air outlet; the casing is equipped with on being close to the inner wall of duct terminal surface with the sealing connection duct the sealing member of making an uproar that falls, and the sealing member of making an uproar is close to the air outlet, in the air current flow direction, fall the sealing member of making an uproar with the terminal surface butt of duct shell falls the sealing member of making an uproar and is flexible sound absorbing material to this reduces the vibrations of hair-dryer, noise reduction, and increases the leakproofness of hair-dryer with the exit and the casing seal flexible coupling of duct.

Description

Hair drier

Technical Field

The utility model relates to a hair drier belongs to electric tool.

Background

A hair dryer is a commonly used electric tool, and is mainly used for cleaning fallen leaves, grass clippings, road dust and the like by using air flow. There is the gap between the casing of the exit position of the duct of current hair-dryer and hair-dryer, and the air current of the air outlet from duct flow direction hair-dryer can flow from this gap, causes the leakproofness of hair-dryer poor, among the prior art, in order to solve this problem, can be with the duct in exit position and casing rigid coupling, but can increase the vibration of hair-dryer, arouses noise easily and feels uncomfortable. For this reason, it is highly desirable to design a hair dryer that can solve this problem.

Disclosure of Invention

An object of the utility model is to provide a hair-dryer that the leakproofness is strong, and the noise is little and vibrate for a short time.

In order to achieve the above purpose, the utility model provides a following technical scheme: a hair dryer, comprising:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with an air inlet through which air enters;

a motor located inside the housing;

the fan is positioned in the shell and is driven by the motor to rotate and generate airflow;

the blowing pipe is connected with one end of the machine shell far away from the air inlet and is provided with an air outlet far away from the machine shell, and the air flow in the machine shell is blown out of the air outlet;

the duct is arranged in the shell and used for guiding the air flow to move towards the air outlet;

the inner wall of the shell, which is close to the end face of the duct, is provided with a noise reduction sealing piece for sealing connection with the duct, in the air flow flowing direction, the noise reduction sealing piece is abutted against the end face of the duct shell, and the noise reduction sealing piece is made of a flexible sound absorption material.

Further, the inner diameter of the bypass casing is smaller than the inner diameter of a circumference formed by the noise reduction sealing piece in a surrounding mode.

Further, the noise reduction sealing piece and the shell are provided with a connecting piece therebetween, and the connecting piece is attached to the inner wall of the shell.

Further, the strength of the connector is greater than the strength of the noise reduction seal.

Further, the material of the connecting piece is a polypropylene material.

Further, the noise reduction sealing piece and the connecting piece are bonded into a whole through gluing.

Further, the noise reduction sealing piece and the connecting piece are detachably connected with the machine shell.

Further, the material of the noise reduction sealing piece is any one of noise reduction sponge and rubber.

Furthermore, a safety shield which is detachable from the shell is arranged on the air inlet.

Further, the duct comprises a diversion cone and a duct shell for accommodating the diversion cone.

The beneficial effects of the utility model reside in that: the utility model discloses a hair-dryer is provided with the sealing member of making an uproar that falls that is used for sealing connection between duct and casing, and should fall the sealing member of making an uproar and keep away from the air outlet and be flexible sound absorbing material to this reduces the vibrations of hair-dryer, noise reduction, and increases the leakproofness of hair-dryer with the exit and the casing sealing flexible coupling of duct.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a cross-sectional view of a hair dryer according to an embodiment of the present invention;

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

FIG. 3 is an enlarged view of area B of FIG. 2;

figure 4 is a cross-sectional view of a portion of the blower shown in figure 1 in another orientation.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, 2 and 4, a hair dryer 100 according to an embodiment of the present invention includes a housing 1 having an air inlet 11, a motor 2, a fan 3 driven by the motor 2 to rotate and generate an air flow, a blowing pipe 4 connected to an end of the housing 1 away from the air inlet 11, and a duct 5 for guiding the air flow. Wherein, motor 2, fan 3 and duct 5 all set up inside casing 1, and blowing pipe 4 and casing 1 are connected and are formed with airflow channel, and blowing pipe 4 has the air outlet 41 of keeping away from casing 1 setting, and duct 5 guides the air current that fan 3 produced and removes to air outlet 41 to make the trend of air current concentrate uniformly, promote the air-out effect. Outside air enters the inside of the machine shell 1 from the air inlet 11 of the machine shell 1, the motor 2 drives the fan 3 to rotate and generate air flow, the air flow in the machine shell 1 moves into the blowing pipe 4 under the guidance of the duct 5 and is blown out from the air outlet 41 to blow off fallen leaves, garbage and the like on the ground.

The direction in which the air flow channel is located is defined as the longitudinal direction, and the air flow moves substantially in the longitudinal direction a, as indicated by the arrow a in fig. 1. In this embodiment, the projections of the air inlet 11 and the air outlet 41 on a plane perpendicular to the longitudinal direction a at least partially coincide.

The duct 5 includes a funnel 51 and a duct case 52 accommodating the funnel 51, the duct case 52 is disposed in the casing 1 of the hair dryer 100, the duct case 52 has a cylindrical shape and extends substantially in the longitudinal direction a, and the funnel 51 is also disposed substantially in the longitudinal direction a. The guiding cone 51 comprises a guiding cone shell 511 and a conical cavity 512 formed by the guiding cone shell 511 in an enclosing manner, an airflow flowing space is formed between the guiding cone shell 511 and the duct shell 52 and used for enabling the airflow generated by the fan 3 to pass through, and the cross section of the flowing space vertical to the longitudinal direction a is approximately annular.

The duct 5 further comprises a plurality of stationary blades 53 located between the guide cone 51 and the duct casing 52, the plurality of stationary blades 53 being located in the annular flow-through space between the guide cone casing 511 and the duct casing 52 and being distributed substantially at intervals, the interval between two stationary blades 53 providing the flow-through. The number of the stationary blades 53 may be 7, etc., and is not particularly limited herein, and may be set according to actual needs. In the present embodiment, the stationary blades 53 are inclined with respect to the longitudinal direction a, and the inclined angle is preferably 5 ° to 15 °, which facilitates better guiding of the airflow. The stationary blades 53 are fixedly connected to at least one of the cone housing 511 and the duct housing 52 in the radial direction and may be integrally formed therewith.

The noise reduction sealing piece 6 is arranged between the duct 5 and the casing 1 and is used for sealing connection, and the noise reduction sealing piece 6 is far away from the air outlet 41, so that the duct shell 52 is in sealing connection with the casing 1, air leakage of a gap between the duct shell 52 at the outlet of the duct 5 and the casing 1 is avoided when the blower 100 works, and the sealing performance of the blower 100 is improved. Noise reduction sealing member 6 is flexible sound absorbing material, realizes the flexible connection between duct shell 52 and the casing 1, has reduced the vibration of duct shell 52 relative casing 1, even when duct 5 floats relative casing 1, also is in encapsulated situation between duct shell 52 and the casing 1, has reduced the noise of hair-dryer 100, and this noise reduction sealing member 6 can the noise absorption, further reduces the noise of hair-dryer 100 at the during operation, has improved operating comfort. In this embodiment, the material of the noise reduction seal 6 is any one of noise reduction sponge and rubber, but is not limited thereto, and the material of the noise reduction seal 6 may be other materials, which are not listed here.

The sealing member 6 of making an uproar just is located the interior circumference of casing 1 and is the cavity tubular structure, and the sealing member 6 of making an uproar falls and can dismantle with casing 1 and be connected, and in this embodiment, the sealing member 6 of making an uproar falls and is the rectangle structure, encloses when installing in casing 1 and establishes and form the cavity tubular structure, conveniently falls the installation of the sealing member 6 of making an uproar and dismantle, in other embodiments, falls the sealing member 6 of making an uproar and can be the tubular structure as an organic whole, about the structure of the sealing member 6 of making an uproar falls, do not specifically limit here, can set up according to actual need.

Referring to fig. 2 and fig. 3, in the airflow flowing direction, the noise reduction sealing member 6 is abutted against the end surface of the duct housing 52 and is disposed at an end of the duct housing 52 close to the air outlet 41. The thickness of the noise reduction sealing piece 6 is larger than that of the ducted shell 52, so that no matter how much floating the ducted shell 52 floats, the end face of the ducted shell 52 is always abutted against the end face of the noise reduction sealing piece 6, and the sealing performance of the blower 100 is guaranteed.

The inner diameter of the bypass casing 52 is smaller than the inner diameter of the circumference defined by the noise reduction seal 6, so that the noise reduction seal 6 is prevented from obstructing the air flow circulation, and the blowing efficiency of the blower 100 is ensured. In this embodiment, the inner diameter of the circumference formed by the noise reduction sealing member 6 is smaller than 89.4mm, so that the blower 100 has a compact structure and a small volume, and the operation comfort of an operator is ensured.

In order to further enhance the connection stability between the noise reduction sealing member 6 and the casing 1, a connecting member 7 is arranged between the noise reduction sealing member 6 and the casing 1, the strength of the connecting member 7 is greater than that of the noise reduction sealing member 6 and less than that of the material of the casing 1, and the flexibility of the connecting member 7 is less than that of the material of the noise reduction sealing member 6 and greater than that of the material of the casing 1, so that the connection stability between the noise reduction sealing member 6 and the casing 1 is ensured. The material of the connecting member 7 is PBC (carbon dioxide-butylene oxide-biocarbonate copolymer), PP (polypropylene), PPC (polymethyl ethylene carbonate), etc., but is not limited thereto, and the connecting member may be another material, which is not listed here, and PP (polypropylene) is preferred in this embodiment. The connecting piece 7 has the same structure as the noise reduction sealing piece 6, can be in a rectangular structure and is surrounded between the noise reduction sealing piece 6 and the machine shell 1 to form a hollow cylindrical structure, or can be in a hollow cylindrical structure sleeved on the noise reduction sealing piece 6. The connecting piece 7 is attached to the inner wall of the machine shell 1, and the connecting piece 7 is detachably connected with the machine shell 1, so that the connecting piece 7 is convenient to replace. The noise reduction sealing piece 6 and the connecting piece 7 can be bonded into a whole through gluing, so that the stability between the two is improved, and the replacement is convenient.

Referring to fig. 1, 2 and 4, the motor 2 is disposed in the conical cavity 512 of the guiding cone 51, and the fan 3 is disposed between the motor 2 and the air inlet 11, that is, the air inlet 11 and the motor 2 are located at two sides of the fan 3. The air flow generated by the rotation of the fan 3 passes through the periphery of the motor 2 to generate an additional cooling effect on the motor 2, so that the cooling fan 3 does not need to be additionally arranged, the heat dissipation requirement of the motor 2 can be met, and the design simplifies the structure of the hair drier 100. In other embodiments, the motor 2 may be at least partially disposed within the conical cavity 512 of the guide cone 51, or disposed outside the guide cone 51, which is not particularly limited herein.

The motor 2 is provided with a motor shaft 21, the motor 2 drives the motor shaft 21 to rotate around the axis of the motor 2, the fan 3 is connected with the motor shaft 21 and driven by the motor 2 to rotate around the axis of the fan, so that air is driven to form an air flow, and the axis of the motor shaft 21 is overlapped with the axis of the fan and extends along the longitudinal direction a. Indeed, in other embodiments, the motor shaft may also be connected to the fan through a transmission mechanism, which is not limited herein, and the transmission mechanism may be a gear set, a conveyor belt, or other common structures.

In the present embodiment, the motor 2 is preferably an ac brushless motor or a dc brushless motor, which is generally small in size and has a diameter of 50mm or less, or even smaller. Therefore, the alternating current brushless motor or the direct current brushless motor can be conveniently arranged in the diversion cone. In other embodiments, the motor may also be a dc motor, and the size of the dc motor is usually smaller, but the dc motor has shorter continuous operation due to the limitation of the dc power supply time, which is not favorable for meeting the user's requirement. And the ac brushless motor has a small size and can operate for a long time. The motor can also be a brush alternating current motor, but the size of the brush alternating current motor is larger, and the brush alternating current motor cannot be placed in the guide cone generally.

The fan 3 is arranged at one end of the duct 5 far away from the blowing pipe 4, in the embodiment, the fan 3 is an axial flow fan 3, and the axial flow fan 3 can provide better blowing effect compared with a centrifugal fan. The fan 3 includes a hub 31 coupled to the motor shaft 21, and a plurality of blades 32 circumferentially surrounding the hub 31, the blades 32 are airfoil-shaped blades 32 extending in a radial direction of the hub 31, one end of each blade 32 is connected to a circumferential surface of the hub 31, the one end is a connection end, and the other end opposite to the connection end is a free end. The blades 32 may be integrally formed with the hub 31, or may be fixedly connected to the hub 31. The side edges between the connecting end and the free end are bent to make the whole blade 32 in a generally curled state, and the blade 32 is spirally arranged along the connecting line direction of the connecting end and the free end (i.e. the radial direction of the axial flow fan 3), so that the blade 32 is integrally in a spiral ladder-like structure, and therefore, the connecting end and the free end are not located on the same plane. The blades 32 are uniformly distributed along the circumferential direction of the fan 3, and in the preferred embodiment, the number of the blades 32 is 11, but may be 9, 10, 12, 13, 14, etc. The plurality of blades 32 are uniformly arranged in a spiral direction, and the blades 32 rotate together with the hub 31 to form an air flow. In addition, a gap is provided between the free end of the blade 32 and the ducted casing 52 in the circumferential direction, and the size of the gap in the circumferential direction is 0.5mm or more, so that the noise reduction effect is achieved. Because axial fan 3 can produce higher wind speed, under the prerequisite that does not increase the size, the efficiency of blowing obtains very big improvement. It should be noted that the sectional area of the guide cone 51 in the direction perpendicular to the longitudinal direction a is smaller than or equal to the sectional area of the hub 31 of the fan 3 in the direction perpendicular to the longitudinal direction a, so as to avoid obstructing the air flow.

The hair dryer 100 further comprises a handle 8 for an operator to hold, the handle 8 is disposed on the casing 1, the casing 1 is integrally formed, the handle 8 has a holding portion 81 for the operator to hold, the handle 8 is further provided with a control switch 82, the control switch 82 is electrically connected with the motor 2 to control the on and off of the motor 2, and preferably, the control switch 82 can also control the rotation speed of the motor 2.

Blower 100 still includes battery package 9 for supplying power to motor 2, makes the workspace of blower 100 unrestricted, and battery package 9 detachable installs the downside at handle 8, and battery package 9 is close to handle 8 and sets up for weight is concentrated, and the focus is closer to the position that the operator hand gripped promptly, makes to grip more comfortable, also is difficult for feeling tired when gripping handle 8 for a long time. The battery pack 9 can be a lithium battery pack 9, and the battery pack 9 can be fixed on the case 1 in a buckling mode or a plugging mode, so that the battery pack can be easily detached from the case 1. In other embodiments, the blower 100 may be directly connected to the mains power through a cable instead of the battery pack 9, thereby reducing the weight of the blower 100 and improving the comfort of using the blower 100, but the range of use of the blower 100 is limited by the length of the cable. The power supply mode of the hair dryer 100 can be selected according to actual needs, and is not particularly limited herein.

The air inlet 11 is provided with a safety shield 111 which is detachable from the casing 1, and the safety shield 111 can be detachably and fixedly connected with the casing 1 through bolts, buckles and the like. The safety shield 111 serves to prevent the fingers of the operator from penetrating into the interior of the cabinet 1, thereby creating a hazard.

The operating principle of the blower 100 shown above is: the control switch 82 turns on the motor 2, the motor 2 drives the fan 3 to rotate, external air enters the air flow channel from the air inlet 11, the air is accelerated by the fan 3 to form air flow, the air flow is intensively guided to the blowing pipe 4 through the duct 5 and is blown out from the air outlet 41, and the air flow is used for cleaning work, and is low in noise and vibration.

To sum up, the utility model discloses shown hair-dryer is provided with the sealing member of making an uproar that falls that is used for sealing connection between duct and casing, and should fall the sealing member of making an uproar and be close to the air outlet and be flexible sound absorbing material to this reduces the vibrations of hair-dryer, noise abatement, and increases the leakproofness of hair-dryer with the exit and the casing sealing flexible coupling of duct.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A hair dryer, comprising:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with an air inlet through which air enters;

a motor located inside the housing;

the fan is positioned in the shell and is driven by the motor to rotate and generate airflow;

the blowing pipe is connected with one end of the machine shell far away from the air inlet and is provided with an air outlet far away from the machine shell, and the air flow in the machine shell is blown out of the air outlet;

the duct is arranged in the shell and used for guiding the air flow to move towards the air outlet;

the noise reduction device is characterized in that a noise reduction sealing piece for sealing connection with the duct is arranged on the inner wall, close to the end face of the duct, of the machine shell, the noise reduction sealing piece is abutted to the end face of the duct shell in the airflow flowing direction, and the noise reduction sealing piece is made of a flexible sound absorption material.

2. The blower of claim 1, wherein an inner diameter of the bypass housing is less than an inner diameter of a circumference enclosed by the noise reduction seal.

3. The blower of claim 1, wherein a connector is provided between the noise reducing seal and the housing, the connector engaging the noise reducing seal with an inner wall of the housing.

4. The blower of claim 3, wherein the strength of the connector is greater than the strength of the noise reduction seal.

5. The hair dryer of claim 4, wherein said connector is a polypropylene material.

6. The blower of claim 3, wherein the noise reducing seal is integrally bonded to the connector by gluing.

7. The blower of claim 6, wherein said noise reducing seal, connector and said housing are removably connected.

8. The blower of claim 1, wherein the noise reducing seal is made of any one of noise reducing sponge and rubber.

9. The hair dryer of claim 1, wherein said inlet is provided with a safety shield removable from said housing.

10. The blower of claim 1, wherein the duct includes a deflector cone and a duct housing that houses the deflector cone.

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