A hair dryer with optimized air duct guide

Abstract

This utility model discloses a hair dryer with optimized airflow guidance, relating to the field of hair dryer technology. It includes a blower casing and a handle connected to the casing. An air guide bracket is installed inside the blower casing, dividing the interior into a heating zone and a control panel mounting zone. The air guide bracket is inclined towards the heating zone to form an inclined airflow guide surface, creating an airflow channel between the air guide bracket and the heating zone. An air inlet duct is formed inside the handle, and the airflow guide channel connects to the air inlet duct. The inclined arrangement on one side of the air guide bracket forms a structurally sound airflow guide channel, providing a stable flow space for airflow and ensuring smooth convergence. Combined with its inclined airflow guide surface, it guides the airflow to flow smoothly along a preset direction, avoiding airflow diffusion or collision. The inclined airflow guide design is more conducive to concentrating airflow, enhancing wind pressure and wind speed, thus providing users with a high-performance hair dryer.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, specifically a hair dryer with optimized airflow. Background Technology

[0002] In the field of personal care appliances, the core requirements for hair dryers are concentrated on air delivery efficiency and operational stability, and the rationality of the air duct design directly determines the performance of these two core indicators. Currently, conventional hair dryers often integrate a control board (PCBA) and heating element inside the nozzle. To accommodate the installation of these components, the air duct often adopts a "straight-through" or "simple chamber" structure, without specific optimization for airflow.

[0003] Specifically, the existing design has obvious shortcomings: First, the arrangement of the control board and the heating element inside the air duct is relatively compact, and there is a lack of transitional airflow guiding structure between the two. After the airflow passes around the control board, it needs to turn directly to the heating element. During this process, the airflow is prone to diffusion and collision, resulting in turbulent flow field. This not only increases the flow resistance but also fails to effectively concentrate the air pressure, directly affecting the air delivery speed and drying efficiency. Second, the existing air duct does not have an optimized transition structure for airflow turning. The flow of air between the control board and the heating element lacks smooth guidance, which not only further aggravates the airflow turbulence problem but may also generate additional noise due to the irregular impact of airflow on the components, reducing the user experience.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] A hair dryer with optimized airflow guidance includes a blower barrel and a handle connected to the blower barrel; An air guide bracket is installed inside the air duct. The air guide bracket divides the interior of the air duct into a heating zone and a control board mounting zone. The air guide bracket is inclined toward the heating zone to form an inclined air guide surface and to form an air guide passage between the air guide bracket and the heating zone. An air inlet duct is formed inside the handle, and the air guide channel is connected to the air inlet duct.

[0007] As a further embodiment of this utility model: the inclined guide surface extends inclinedly to one side of the guide passage along the air outlet direction of the air inlet duct, so that the airflow of the air inlet duct is smoothly guided into the guide passage along the inclined guide surface.

[0008] As a further embodiment of this utility model: the inclination angle between the inclined guide surface and the axis of the air inlet duct is 3 degrees to 10 degrees.

[0009] As a further embodiment of this utility model: the lower end of the air guide bracket is provided with a flow guide opening, and the upper end of the air guide bracket is provided with a plurality of flow guide holes along its circumference. The airflow in the air inlet duct can enter the control board mounting area through the guide opening, and then flow into the guide passage through the guide hole.

[0010] As a further embodiment of this utility model: the end of the handle away from the air duct is provided with an air inlet hole that communicates with the air inlet duct, and a motor is installed in the air inlet duct; The heating zone is equipped with a heating element, the control board mounting area is equipped with a control board assembly, and the end of the air duct corresponding to the heating zone is provided with an air outlet.

[0011] As a further embodiment of this utility model: the side of the air guide bracket facing the heating and warming zone is provided with a first connecting end for assembly and connection with the heating component, and the side of the air guide bracket facing the control board mounting area is provided with a second connecting end for assembly and connection with the control board component. The flow channel is formed around the outer periphery of the first connection end.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The design of the air guide bracket combines three core functions: space division, assembly positioning, and airflow guidance. Firstly, by separating the heating area and the control board mounting area, the heat generated by the heating components is directly conducted to the control board components, thereby reducing the impact of high temperature on the circuitry and electronic components of the control board components and extending the service life of the control board components. Secondly, the heating element and the control board assembly are precisely positioned through the first and second connecting ends respectively, ensuring that the two are accurately installed in the air duct and avoiding displacement or resonance during operation. Thirdly, the coordinated design of the inclined guide surface, guide opening, guide hole and guide channel creates a primary and secondary airflow channel, which not only ensures the smooth flow of the main airflow, but also uses the diverted airflow to achieve natural heat dissipation of the control board components, taking into account both air supply efficiency and component operation stability. In addition, the inclined setting on one side of the air guide bracket forms a reasonably structured airflow channel. This airflow channel provides a stable flow space for the airflow and ensures smooth convergence. Combined with its inclined airflow surface, it can guide the airflow to flow smoothly along the preset direction, avoiding airflow diffusion or collision. The inclined airflow design is more conducive to concentrating the airflow, enhancing wind pressure and wind speed, and thus providing users with a high-performance hair dryer.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the air guide bracket, heating element and control board assembly in this utility model; Figure 4 This is a schematic diagram of the structure of the air guide bracket in this utility model.

[0016] The reference numerals and names in the figure are as follows: 1. Air duct; 2. Handle; 3. Air guide bracket; 4. Heating zone; 5. Control board mounting area; 6. Inclined air guide surface; 7. Air guide channel; 8. Air inlet duct; 9. Air guide opening; 10. Air guide hole; 11. Air inlet hole; 12. Motor; 13. Heating element; 14. Control board assembly; 15. Air outlet hole; 16. First connection end; 17. Second connection end. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4In this embodiment of the utility model, a hair dryer with optimized airflow is comprised of a blower casing 1 and a handle 2. The handle 2 and the blower casing 1 are fixedly connected (e.g., by snap-fit ​​connection, threaded connection, or integral molding) to ensure the structural stability of the assembled machine. Several air inlet holes 11 are provided on the end face or side wall of the handle 2 away from the blower casing 1. The air inlet holes 11 are evenly distributed to ensure uniform airflow. A through air inlet duct 8 is formed inside the handle 2 along its axial direction. The inner diameter of the air inlet duct 8 is adapted to the outer diameter of the motor 12. The motor 12 is fixedly installed inside the air inlet duct 8 by a bracket or snap-fit ​​structure. The output shaft of the motor 12 faces the blower casing 1. The negative pressure generated by the motor 12 during operation guides external air through the air inlet holes 11 into the air inlet duct 8 smoothly, providing continuous power for the airflow circulation of the entire machine.

[0019] An air guide bracket 3 is installed inside the air duct 1. The air guide bracket 3 has a ring or disc-shaped structure and divides the interior of the air duct 1 into two independent heating zones 4 and a control board mounting area 5. The heating zone 4 is located on the side of the air duct 1 closer to the air outlet (air outlet 15), and the control board mounting area 5 is located on the side of the air duct 1 away from the air outlet. A first connecting end 16 is provided on the side of the air guide bracket 3 facing the heating zone 4. A heating element 13 is fixedly assembled in the heating zone 4. The heating element 13 is a conventional heating wire or PTC heating element structure, etc., and is fixedly connected to the first connecting end 16 to ensure the installation stability of the heating element 13 in the heating zone 4. Specifically, the first connecting end 16 can be a protruding mounting post or a ring-shaped mounting seat with threads or snap-fit ​​grooves, and is assembled and connected to the heating element 13 assembled in the heating zone 4 through conventional methods such as bolt fastening or snap-fit ​​engagement. A second connection end 17 is provided on one side of the control board mounting area 5. A control board assembly 14 is assembled in the control board mounting area 5. The control board assembly 14 integrates the control circuit and electronic components of the blower and is fixedly connected to the second connection end 17. Specifically, the second connection end 17 can be a mounting platform or slot with threaded holes. The control board assembly 14 is assembled on the second connection end 17 by screw fixing or snap-fit. An airflow gap is reserved between the outer periphery of the control board assembly 14 and the inner wall of the control board mounting area 5 to provide space for airflow to pass through the periphery of the control board assembly 14.

[0020] One side of the air guide bracket 3 is inclined to create a reserved space between the air guide bracket 3 and the heating zone 4. This reserved space forms the airflow channel 7, which surrounds the outer periphery of the first connecting end 16. Its width (i.e., the distance between the air guide bracket 3 and the heating component 13) is reasonably set according to the inner diameter of the air duct 1 and the size of the heating component 13 to ensure smooth airflow. The side of the air guide bracket 3 facing the heating zone 4 is an inclined airflow guide surface 6. This inclined airflow guide surface 6 extends inclinedly along the airflow direction of the air inlet duct 8 to the side of the airflow channel 7. Its inclination angle with the axis of the air inlet duct 8 is controlled between 3 and 10 degrees. This angle range is designed to allow the airflow from the air inlet duct 8 to transition naturally along the inclined airflow guide surface 6, effectively avoiding violent impact when the airflow turns. In addition, a flow guide opening 9 is provided at the lower end of the air guide bracket 3 (on the side near the connection end of the handle 2). The shape of the flow guide opening 9 is adapted to the space of the control panel mounting area 5 to facilitate airflow entry. Several flow guide holes 10 are evenly provided at the upper end of the air guide bracket 3 along its circumference. The hole diameter is reasonably set according to the thickness of the air guide bracket 3 and the required air volume.

[0021] The air duct 1 has an air outlet 15 at the end corresponding to the heating zone 4. The air outlet 15 can be a grid-like, annular, or multi-hole structure. The total area of ​​the air outlet 15 is adapted to the flow area of ​​the guide channel 7 to ensure smooth airflow. When the motor 12 starts, external air enters the air inlet duct 8 through the air inlet 11. Driven by the motor 12, the airflow is divided into two parts: one part of the airflow directly enters the guide channel 7 and flows smoothly along the inclined guide surface 6 of the air guide bracket 3 to the heating zone 4. The airflow gradually turns under the guidance of the inclined guide surface 6 to avoid diffusion or collision. The other part of the airflow enters the control board mounting area 5 through the guide opening 9 at the lower end of the air guide bracket 3. It flows through the surface and surrounding gaps of the control board assembly 14 (i.e., the airflow gaps around the control board assembly 14), which provides a certain heat dissipation effect on the control board assembly 14. Then, it flows evenly into the guide channel 7 through several guide holes 10 at the upper end of the air guide bracket 3. After the two airflows converge in the guide channel 7, they flow around the outer periphery and surface of the heating element 13, making full contact with the heating element 13 and being heated. Finally, they are evenly discharged through the air outlet 15 at the end of the air duct 1, completing the entire process of air supply, heating and air discharge.

[0022] The design of the air guide bracket 3 combines three core functions: space division, assembly positioning, and airflow guidance. Firstly, by separating the heating zone 4 and the control board mounting area 5, the heat generated by the heating component 13 during operation is directly conducted to the control board assembly 14, thereby reducing the impact of high temperature on the circuit and electronic components of the control board assembly 14 and extending the service life of the control board assembly 14. Secondly, the heating element 13 and the control board assembly 14 are precisely positioned by the first connecting end 16 and the second connecting end 17 respectively, to ensure that the two are accurately installed in the air duct 1 and to avoid displacement or resonance during operation. Thirdly, the coordinated design of the inclined guide surface 6, the guide opening 9, the guide hole 10 and the guide passage 7 constructs a primary and secondary airflow channel, which not only ensures the smooth flow of the main airflow, but also utilizes the diverted airflow to achieve natural heat dissipation of the control board assembly 14, taking into account both air supply efficiency and component operation stability. In addition, the inclined setting on one side of the air guide bracket 3 forms a reasonably structured airflow channel 7. This airflow channel 7 provides a stable flow space for airflow and ensures smooth convergence. Combined with its inclined airflow surface 6, it can guide the airflow to flow smoothly along the preset direction, avoiding airflow diffusion or collision. The inclined airflow design is more conducive to concentrating airflow, enhancing wind pressure and wind speed, thereby providing users with a high-performance hair dryer.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A hair dryer with optimized airflow, characterized in that, It includes a blower and a handle connected to the blower; An air guide bracket is installed inside the air duct. The air guide bracket divides the interior of the air duct into a heating zone and a control board mounting zone. The air guide bracket is inclined toward the heating zone to form an inclined air guide surface and to form an air guide passage between the air guide bracket and the heating zone. An air inlet duct is formed inside the handle, and the air guide channel is connected to the air inlet duct.

2. A hair dryer with optimized airflow guidance according to claim 1, characterized in that, The inclined guide surface extends obliquely to one side of the guide passage along the air outlet direction of the air inlet duct, so that the airflow of the air inlet duct is smoothly guided into the guide passage along the inclined guide surface.

3. A hair dryer with optimized airflow guidance according to claim 2, characterized in that, The angle between the inclined guide surface and the axis of the air inlet duct is 3-10 degrees.

4. A hair dryer with optimized airflow guidance according to claim 1, characterized in that, The lower end of the air guide bracket is provided with a flow guide opening, and the upper end of the air guide bracket is provided with a plurality of flow guide holes along its circumference. The airflow in the air inlet duct can enter the control board mounting area through the guide opening, and then flow into the guide passage through the guide hole.

5. A blower with optimized airflow guidance according to any one of claims 1-4, characterized in that, The handle is provided with an air inlet at the end away from the air duct, which is connected to the air inlet duct, and a motor is installed in the air inlet duct; The heating zone is equipped with a heating element, the control board mounting area is equipped with a control board assembly, and the end of the air duct corresponding to the heating zone is provided with an air outlet.

6. A blower with optimized airflow guidance according to claim 5, characterized in that, The air guide bracket has a first connection end on the side facing the heating and warming area, which is assembled and connected to the heating component; and the air guide bracket has a second connection end on the side facing the control board mounting area, which is assembled and connected to the control board component. The flow channel is formed around the outer periphery of the first connection end.

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