Handheld blowing device

Abstract

The utility model discloses a handheld air blowing device which comprises an air supply mechanism, a mounting bracket, a sleeve, an air duct and a shell, the installation support is of a cylinder structure and comprises a connecting part located at the front end and an installation part located at the rear end which are distributed in the axial direction of the installation support. The air supply mechanism is arranged on an installation part in the installation support and used for generating airflow flowing in the direction from the installation part to the connecting part, the installation support is in butt joint with the air duct through the connecting part so that the airflow generated by the air supply mechanism can enter the air duct, and the air duct is used for outputting the airflow to a target air blowing point; the sleeve is arranged on the portion, corresponding to the installation part, outside the installation support in a sleeving mode, a first gap is formed between the sleeve and the installation part, and a second gap is formed between the sleeve and the shell. According to the handheld air blowing device, mechanical noise and flowing noise in the using process can be fundamentally reduced, quiet and comfortable air blowing experience is brought to a user, and the practicability of a product and the satisfaction degree of the user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a handheld blowing device. Background Art

[0002] In modern life, hair dryers are a common personal care appliance and are widely used in hair styling, drying and other occasions. Traditional hair dryers are usually composed of components such as a housing, a blower, an air supply mechanism and a mounting bracket. Its working principle is that the air supply mechanism generates a high-speed airflow, which is guided and sprayed to the target area through the blower. This design is simple and practical, providing users with a convenient and fast operation experience.

[0003] However, as people's requirements for quality of life and environment continue to improve, the noise problem generated by traditional hair dryers during use has become increasingly prominent. The noise not only affects the user's experience, but may also have an adverse impact on the user's hearing health and the surrounding environment. The main sources of noise include:

[0004] 1. Mechanical noise during the operation of the air supply mechanism, such as motor vibration, impeller rotation, etc.;

[0005] 2. The flow noise of high-speed airflow inside the wind tube;

[0006] 3. The impact noise of air flow with the outside air when it is ejected from the air outlet.

[0007] The existence of these noise problems seriously reduces the comfort of using hair dryers and also restricts their application in more occasions. Therefore, effectively reducing the noise level has become an important technical problem that needs to be solved in the development of hair dryers. Utility Model Content

[0008] The utility model aims to provide a handheld blowing device which can effectively block the mechanical noise generated when the air supply mechanism is in operation and the flow noise inside the air cylinder.

[0009] In order to achieve the above-mentioned purpose, the utility model provides a handheld hair dryer, which comprises an air supply mechanism, a mounting bracket, a sleeve, a wind tube and a shell; the mounting bracket is a cylindrical structure, and the mounting bracket comprises a connecting portion at the front end and a mounting portion at the rear end distributed along its axial direction; the air supply mechanism is arranged at the mounting portion in the mounting bracket, and the air supply mechanism is used to generate an airflow flowing from the mounting portion to the connecting portion, and the mounting bracket is connected to the wind tube through the connecting portion so that the airflow generated by the air supply mechanism enters the wind tube, and the wind tube is used to output the airflow to a target blowing point;

[0010] The sleeve is sleeved on a portion of the mounting bracket corresponding to the mounting portion, and a first gap is formed between the sleeve and the mounting portion, and a second gap is formed between the sleeve and the housing.

[0011] Preferably, the air supply mechanism includes a motor and fan blades transmission-connected to the motor.

[0012] Preferably, a set of flexible vibration-damping rings arranged on the air supply mechanism is further provided between the air supply mechanism and the mounting portion, and the vibration-damping rings are used to absorb vibration waves generated by the air supply mechanism.

[0013] Preferably, the vibration damping ring comprises a silicone ring.

[0014] Preferably, a plurality of annularly arranged teeth are respectively provided at both ends of the vibration damping ring, and a plurality of recesses corresponding to the teeth are provided on the inner side of the mounting portion of the mounting bracket, and the vibration damping ring is snap-connected with the mounting portion by means of the cooperation between the teeth and the recesses.

[0015] Preferably, the first gap and / or the second gap is also filled with sound absorbing material.

[0016] Preferably, the mounting bracket includes two arc-shaped plates that are relatively snap-fitted and connected.

[0017] Preferably, it comprises a power circuit board electrically connected to the air supply mechanism, the power circuit board is arranged at a connecting portion in the mounting bracket, and a heating element for heating the airflow is arranged at the front end of the air cylinder.

[0018] Preferably, it further comprises an air outlet nozzle connected to the air duct, a retaining ring is further arranged on the outer periphery of the air outlet nozzle, and a third gap is formed between the retaining ring and the air outlet nozzle.

[0019] Compared with the prior art, the handheld hair dryer provided by the above technical solution of the utility model can effectively isolate the mechanical noise during the operation of the air supply mechanism by setting a sleeve and forming a gap between the sleeve, the mounting bracket and the shell; in addition, since the air duct is located inside the shell, the air duct can block the noise generated when the high-speed airflow flows inside it from directly leaking to the outside of the shell; it can be seen that the above handheld hair dryer can fundamentally reduce the overall noise intensity during use, bring users a quieter and more comfortable blowing experience, and improve the practicality of the product and user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the blowing device in the embodiment of the utility model.

[0021] Figure 2 for Figure 1A longitudinal section of the head of the blowing device.

[0022] Figure 3 for Figure 2 Exploded view of the central blower.

[0023] Figure 4 It is a three-dimensional structural diagram of the vibration damping ring in the embodiment of the utility model.

[0024] Figure 5 It is a three-dimensional structural diagram of the air duct in the embodiment of the utility model.

[0025] Figure 6 It is an exploded view of the mounting bracket in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0027] like Figures 1 to 5 This embodiment discloses a handheld hair dryer for drying and styling hair. The hair dryer comprises an air supply mechanism 5, a mounting bracket 4, a sleeve 3, a hair dryer 2 and a housing 1.

[0028] The mounting bracket 4 is a cylindrical structure, and includes a connecting portion 40 at the front end and a mounting portion 41 at the rear end, which are distributed along the axial direction thereof.

[0029] The air supply mechanism 5 is disposed on the mounting portion 41 in the mounting bracket 4 , that is, the air supply mechanism 5 is mounted inside the mounting bracket 4 . The air supply mechanism 5 is used to generate an airflow flowing from the mounting portion 41 to the connecting portion 40 .

[0030] The mounting bracket 4 is connected to the air duct 2 via the connecting portion 40 so that the airflow generated by the air supply mechanism 5 enters the air duct 2. The air duct 2 is used to output the airflow to the target blowing point.

[0031] The sleeve 3 is sleeved on the portion of the outside of the mounting bracket 4 corresponding to the mounting portion 41 , and a first gap X1 is defined between the sleeve 3 and the mounting portion 41 , and a second gap X2 is defined between the sleeve 3 and the housing 1 .

[0032] In this embodiment, the air supply mechanism 5 absorbs external airflow and generates high-speed airflow, which is sent into the air duct 2 and then output through the air duct 2. Since the outer periphery of the air supply mechanism 5 is sleeved with a sleeve 3, and there is a gap between the sleeve 3, the mounting bracket 4 and the housing 1, the mechanical noise generated by the air supply mechanism 5 during operation can be effectively blocked from being directly transmitted to the housing 1, thereby reducing the mechanical noise output by the housing 1. In addition, since the air duct 2 is located inside the housing 1, the flow noise generated by the high-speed airflow inside the air duct 2 is blocked by the air duct 2, thereby reducing the flow noise output by the housing 1.

[0033] On the other hand, the first gap X1 and / or the second gap X2 are filled with sound absorbing material, so as to further reduce the noise output from the housing 1 .

[0034] Furthermore, the air supply mechanism 5 includes a motor and fan blades drivingly connected to the motor.

[0035] On the other hand, a set of flexible vibration-damping rings 6 arranged on the air supply mechanism 5 is also arranged between the air supply mechanism 5 and the mounting portion 41, and the vibration-damping rings 6 are used to absorb vibration waves generated by the air supply mechanism 5. Specifically, the vibration-damping rings 6 include silicone rings.

[0036] In this embodiment, the flexible vibration-damping ring 6 is provided to effectively absorb the vibration waves generated by the air supply mechanism 5, thereby effectively reducing the vibration feeling of the blowing device.

[0037] Furthermore, if Figure 4 and Figure 6 , a plurality of annularly arranged teeth 60 are respectively provided at both ends of the vibration damping ring 6, and a plurality of recesses 42 corresponding to the teeth 60 are provided on the inner side of the mounting portion 41 of the mounting bracket 4. By means of the cooperation between the teeth 60 and the recesses 42, the vibration damping ring 6 is engaged and connected with the mounting portion 41. In this embodiment, the air supply mechanism 5 is tightly connected with the vibration damping ring 6, and the vibration damping ring 6 is connected with the mounting portion 41 by the cooperation between the teeth 60 and the recesses 42, so that the air supply mechanism 5 is stably fixed on the mounting bracket 4.

[0038] On the other hand, Figure 6 The mounting bracket 4 includes two arc-shaped plates 43 that are relatively snap-fitted and connected. During assembly, the vibration-damping ring 6 is first put on the assembly mechanism, and then one of the arc-shaped plates 43 is buckled on the outer peripheral wall of the vibration-damping ring 6, and then the two ends of the other arc-shaped plate 43 are butted and buckled with the two ends of the previously assembled arc-shaped plate 43, so that the vibration-damping ring 6 is squeezed and deformed, thereby stabilizing the air supply mechanism 5 on the mounting bracket 4.

[0039] On the other hand, the blowing device also includes a power circuit board 9 electrically connected to the air supply mechanism 5, the power circuit board 9 is arranged at the connection part 40 in the mounting bracket 4, and a heating element for heating the airflow is arranged at the front end of the air cylinder 2. In this embodiment, the heating element for heating the airflow output by the air supply mechanism 5 is arranged at the front end of the air cylinder 2, and the connection part 40 in the mounting bracket 4 is in the air supply channel of the cold air. Therefore, when the blowing device is in working state, the power circuit board 9 is in the air flow channel of the cold air in real time, so that the power circuit is air-cooled and dissipated, and there is no need to configure a heat dissipation device for the power circuit board 9, which effectively reduces the cost and increases the service life of the power circuit board 9.

[0040] On the other hand, the blowing device further comprises an air outlet nozzle 80 connected to the air cylinder 2 , and a retaining ring 81 is further arranged on the outer periphery of the air outlet nozzle 80 , and a third gap X3 is defined between the retaining ring 81 and the air outlet nozzle 80 .

[0041] In this embodiment, by providing the air outlet nozzle 80 and the retaining ring 81, it is prevented that the user is burned by the high temperature of the air outlet nozzle 80 after using the hair dryer for a long time.

[0042] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A handheld hair dryer, characterized in that: An air supply mechanism, a mounting bracket, a sleeve, a wind tube and a shell; the mounting bracket is a cylindrical structure, and the mounting bracket includes a connecting portion at the front end and a mounting portion at the rear end distributed along its axial direction; the air supply mechanism is arranged at the mounting portion in the mounting bracket, and the air supply mechanism is used to generate an airflow flowing from the mounting portion to the connecting portion, and the mounting bracket is connected to the wind tube through the connecting portion so that the airflow generated by the air supply mechanism enters the wind tube, and the wind tube is used to output the airflow to a target blowing point; The sleeve is sleeved on a portion of the outside of the mounting bracket corresponding to the mounting portion, and a first gap is defined between the sleeve and the mounting portion, and a second gap is defined between the sleeve and the housing.

2. The handheld hair dryer according to claim 1, characterized in that: The air supply mechanism comprises a motor and a fan blade which is transmission-connected to the motor.

3. The handheld hair dryer according to claim 1, characterized in that: A set of flexible vibration-damping rings arranged on the air supply mechanism is also arranged between the air supply mechanism and the mounting portion. The vibration-damping rings are used to absorb vibration waves generated by the air supply mechanism.

4. The handheld hair dryer according to claim 3, characterized in that: The vibration damping ring comprises a silicone ring.

5. The handheld hair dryer according to claim 3, characterized in that: A plurality of annularly arranged teeth are respectively arranged at both ends of the vibration damping ring, and a plurality of recesses corresponding to the teeth are arranged on the inner side of the mounting portion of the mounting bracket. By means of the cooperation between the teeth and the recesses, the vibration damping ring is snap-connected with the mounting portion.

6. The handheld hair dryer according to claim 1, characterized in that: The first gap and / or the second gap is also filled with sound absorbing material.

7. The handheld hair dryer according to claim 1, characterized in that: The mounting bracket comprises two arc-shaped plates which are relatively snap-fitted and connected.

8. The handheld hair dryer according to claim 1, characterized in that: It comprises a power circuit board electrically connected to the air supply mechanism, the power circuit board is arranged at a connecting portion in the mounting bracket, and a heating element for heating the airflow is arranged at the front end of the air cylinder.

9. The handheld hair dryer according to claim 1, characterized in that: It also includes an air outlet nozzle connected to the air duct, and a retaining ring is also arranged on the outer periphery of the air outlet nozzle, and a third gap is formed between the retaining ring and the air outlet nozzle.

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