Hair dryer

Abstract

The present invention relates to the field of hair dryers and provides a hair dryer. The hair dryer comprises a main body housing, the main body housing comprises a first housing and a handle inner housing, the first housing has a first central axis, and the axial ends of the first housing are a wind discharge end and a wind blocking end, respectively, and the distance between the wind discharge end and the wind blocking end is smaller than a preset distance, and the handle inner housing is connected to the axial center of the first housing, and the handle inner housing has a second central axis, and the first central axis and the second central axis form a preset angle. The hair dryer of the present invention has a distance between the axial ends of the first housing that is smaller than a preset distance, and the main body housing of the hair dryer satisfies design requirements for a small axial length and volume, thereby providing an excellent user experience.

Description

Technology Field

[0001] The present invention relates to the field of hair dryers, and additionally to hair dryers. Background Technology

[0002] A hair dryer consists of a main body and a handle, with a fan and motor installed within the handle and a heat dissipation assembly, PCB board, and mounting bracket installed within the main body. However, due to the thickness of electrical components on the PCB board, the axial length of the heat dissipation assembly, and the mounting position of the bracket, the space within the main body becomes extremely constrained. Consequently, most conventional hair dryers increase the axial length of the main body to meet the requirements for the length of the heat dissipation assembly and the thickness of the PCB board; this results in an excessively long main body, which cannot satisfy the demands for miniaturization and the user experience. The problem to be solved

[0003] Regarding the above technical problem, the objective of the present invention is to provide a hair dryer in which the distance between the two axial ends of a first housing is smaller than a preset distance, wherein the main body housing of the hair dryer satisfies design requirements for a small axial length and volume, thereby providing an excellent user experience. means of solving the problem

[0004] To achieve the above objective, the present invention provides a hair dryer comprising a main body housing, wherein the main body housing comprises a first housing and a handle inner housing, wherein a connecting cross-section is installed on the outer wall of the first housing, and the handle inner housing communicates with the first housing (11) through the connecting cross-section, wherein the first housing has a first central axis, and the axial ends of the first housing are a wind discharge end and a wind blocking end, respectively, and the distance between the wind discharge end and the wind blocking end is smaller than a preset distance;

[0005] The handle inner housing is connected to the axial center of the first housing, and the handle inner housing has a second central axis, and the first central axis and the second central axis form a preset angle;

[0006] In some embodiments, the diameter length of the handle inner housing does not exceed the axial length of the first housing, and the distance from the connection portion between the first housing and the handle inner housing to the wind discharge end is smaller than the radius of the handle inner housing; and the distance from the connection portion between the first housing and the handle inner housing to the wind blocking end is smaller than the radius of the handle inner housing.

[0007] In some embodiments, a wind exhaust housing is installed at the wind exhaust end, and a heat dissipation assembly, a PCB board, and a first mounting bracket are installed within the wind exhaust housing, the first mounting bracket is installed between the heat dissipation assembly and the PCB board, the first mounting bracket fixes the heat dissipation assembly and the PCB board, and the heat dissipation assembly is close to the wind exhaust end;

[0008] A wind-blocking housing is installed at the wind-blocking end, and the wind-blocking housing is fixedly connected to the first mounting bracket.

[0009] In some embodiments, the PCB board is located relatively on one side adjacent to the wind-blocking end at the second central axis;

[0010] There is a gap between the first mounting bracket, the PCB board, and the heat dissipation assembly, and one end of the heat dissipation assembly is located relative to one side close to the wind blocking end on the second central axis.

[0011] In some embodiments, the inner housing of the handle is further provided with a control unit at one end adjacent to the first housing, and the control unit is recessed toward one side of the wind discharge end along the radial direction of the inner housing of the handle;

[0012] The control unit comprises a second flow guide surface and a third flow guide surface, wherein the second flow guide surface is installed at one end of the control unit adjacent to the first housing, and the PCB board forms a plane with the second flow guide surface adjacent to the inner housing of the handle;

[0013] The third flow guide surface is installed at one end of the control unit that is away from the first housing.

[0014] In some embodiments, a flow guide member is further installed at one end of the handle inner housing adjacent to the first housing, the flow guide member is adjacent to the wind discharge end, the flow guide member has a first flow guide surface, and the first flow guide surface and the second flow guide surface are opposite each other so that the cold air flow of the handle inner housing can flow to the PCB board along the direction of the first flow guide surface of the flow guide member;

[0015] A plurality of first through holes are further installed in the first mounting bracket, so that airflow passing through the PCB board flows along the first central axis direction through the first through holes to the wind discharge end and passes through the heat dissipation assembly.

[0016] In some embodiments, the heat dissipation assembly comprises a filament assembly, an annular inner housing, an annular housing, and a second mounting bracket, wherein a plurality of support members are installed surrounding the annular inner housing along the direction of the first central axis, the filament assembly is installed surrounding the direction of the first central axis and surrounded by each of the support members, and one end of the filament assembly adjacent to the wind-blocking end is positioned relative to the second central axis;

[0017] Both the annular housing and the annular inner housing are installed on one side of the second mounting bracket adjacent to the wind discharge end, and the annular housing is installed coaxially on the outer side of the annular inner housing in a sleeve.

[0018] In some embodiments, the support member is symmetrical along the second central axis, and the support member adjacent to the inner housing of the handle is installed along the direction of the second central axis so that the airflow passing through the support member is divided and flows symmetrically to both sides of the heat dissipation assembly.

[0019] In some embodiments, the ring-shaped inner housing is sleeve-installed on one side of the second mounting bracket adjacent to the wind discharge end, and the second mounting bracket further has a fixing groove installed at a position corresponding to the support member, and the support member is hook-connected within the fixing groove.

[0020] In some embodiments, a first buckling member and a first fixing structure are installed at one end of the first mounting bracket, the first buckling member is buckled along the perimeter edge of the PCB board, and the first fixing structure penetrates the PCB board and is fixedly connected to the wind-blocking housing;

[0021] A second buckling member and a second fixing structure are installed at the other end of the first mounting bracket, the second buckling member is buckled to the second mounting bracket, and the second fixing structure is fixedly connected to the second mounting bracket.

[0022] In some embodiments, the annular inner housing is further equipped with a thermistor and a temperature controller at one end adjacent to the wind discharge end, the thermistor and the temperature controller are symmetrical with respect to the first central axis direction, and the thermistor and the temperature controller are located relative to the center of both the left and right sides of the outer ring surface of the annular inner housing.

[0023] In some embodiments, a capacitor is further installed at the center of one end of the PCB board adjacent to the wind discharge end, and the capacitor penetrates the first mounting bracket and the second mounting bracket to reach the interior of the annular inner housing, and the capacitor does not extend beyond the annular inner housing.

[0024] In some embodiments, the handle inner housing comprises a first inner housing and a second inner housing, and the first inner housing has a ring-shaped connecting portion installed at one end adjacent to the first housing, and the ring-shaped connecting portion fixes the center of the first housing;

[0025] The second inner housing is engaged with the first housing along the direction of the first central axis, and the first housing is close to the wind discharge end.

[0026] In some embodiments, a control unit is installed on one side of the first housing adjacent to the wind blocking end, and a first insertion connection is installed on one side of the ring-shaped connection adjacent to the wind discharge end, and a flow guide member is inserted and connected to the first insertion connection;

[0027] A blower assembly is further installed inside the first housing.

[0028] In some embodiments, a second housing is further included, said second housing is sleeve-installed in the inner housing of the handle along the direction of the second central axis, and

[0029] In the second housing, a cover and an internal filter frame are further installed at one end extending away from the first housing, the internal filter frame is installed by being hooked onto the first housing, and the cover is sleeve-installed so as to be detachably attached to the internal filter frame through a magnetic structure. Effects of the invention

[0030] Compared to the prior art, the hair dryer provided by the present invention has the following beneficial effects.

[0031] 1. The distance between the two axial ends of the first housing is smaller than the preset distance, and the main body housing of the hair dryer meets the design requirements for a small axial length and volume, providing an excellent user experience.

[0032] 2. The distance from the connection part between the inner housing of the handle and the first housing to the wind discharge end and the wind blocking end is less than or equal to the radius of the inner housing of the handle, and the axial length of the main body housing is less than or equal to twice the diameter of the inner housing of the handle, wherein the axial length of the main body housing does not exceed twice the diameter of the inner housing of the handle, and the first housing has design features of a small axial length and volume.

[0033] 3. One end of the heat dissipation assembly adjacent to the wind-blocking end is positioned relative to one side adjacent to the wind-blocking end on the second central axis, thereby ensuring that the hair dryer of the present invention maintains the axial length of the heat dissipation assembly to the maximum extent, so that the heat dissipation assembly heats the airflow more quickly, thereby ensuring the hot air effect of the hair dryer.

[0034] 4. The PCB board is flush with one end of the second flow guide surface adjacent to the inner housing of the handle, and the cold air flow inside the inner housing of the handle can reach the surface of the PCB board through the flow guides of the second flow guide surface and the third flow guide surface of the control unit, which is advantageous for heat dissipation of the PCB board, thereby preventing the temperature of the PCB board from becoming excessively high and affecting the lifespan of the PCB board.

[0035] 5. A flow guide member is further installed at one end of the inner housing of the handle adjacent to the first housing, and the first flow guide surface and the second flow guide surface of the flow guide member are opposite to each other, thereby reducing the cross-sectional area of ​​the wind channel of the ventilation groove and improving the wind speed of the cold air passing through the ventilation groove, increasing the fluidity of the cold air, and preventing stacking from easily occurring, so that the cold air is directed toward the front and rear of the PCB board, and the cold air gathers around the PCB board, thereby further enhancing the heat dissipation effect of the PCB board.

[0036] 6. A support member adjacent to the inner housing of the handle is installed along the direction of the second central axis so that the airflow passing through the support member is divided and flows symmetrically to both sides of the heat dissipation assembly, and the airflow on both sides of the heat dissipation assembly becomes more uniform, thereby ensuring stable and reliable air discharge and heating effects.

[0037] 7. The ring-shaped inner housing is sleeve-installed on the second mounting bracket, and the support member is inserted into the fixing groove so that the ring-shaped inner housing and the support member are firmly installed on the second mounting bracket, and the heat dissipation assembly is easily fixedly connected to the first mounting bracket; furthermore, using this fixing method can effectively reduce the axial length of the heat dissipation assembly.

[0038] 8. The thermistor and the temperature controller are symmetrical to each other along the first central axis direction, and the spatial distribution is more reasonable. At the same time, the thermistor and the temperature controller are relatively far apart, so that the temperature of the hot air passing through the filament assembly can be monitored over a wider range; at the same time, the support member evenly divides the annular inner housing, so that the thermistor and the temperature controller are located relatively at the center of both the left and right sides of the outer ring surface of the annular inner housing, and are positioned at the two points where the internal temperature of the annular housing is highest, so that the thermistor and the temperature controller can accurately monitor the temperature of the hot air passing through the filament assembly in a timely manner. Brief explanation of the drawing

[0039] Hereinafter, preferred embodiments are described in a clear and easy-to-understand manner together with the attached drawings to further explain the characteristics, technical features, advantages, and implementation methods of the present invention. Figure 1 is a full diagram of a hair dryer. Figure 2 is a side view of the main body housing. Figure 3 is a cross-sectional view of a hair dryer. Figure 4 is a diagram showing the position of the PCB board. Figure 5 is an exploded view of a hair dryer. Figure 6 is a structural diagram of a wind exhaust housing. Figure 7 is a structural diagram of a heat dissipation assembly. Figure 8 is a mounting diagram of a ring-shaped inner housing. Figure 9 is a structural diagram of the first mounting bracket. Figure 10 is a connection diagram of the heat dissipation assembly and the PCB board. FIG. 11 is a positional diagram of the flow guide member and the control unit. Figure 12 is a structural diagram of the control unit. Figure 13 is a structural diagram of a flow guide member. Figure 14 is a diagram showing the positions of the cover and the internal filter frame. Specific details for implementing the invention

[0040] To more clearly explain the embodiments of the present invention or the technical solutions of the prior art, specific embodiments of the present invention are described below with reference to the drawings. The drawings described below are merely some embodiments of the present invention, and those skilled in the art will be able to obtain other drawings from these drawings without inventive effort.

[0041] To keep the drawings concise, each drawing schematically illustrates only the parts related to the invention and does not represent the structure of the actual product. Additionally, for the sake of understanding, in some drawings, only one of the components having the same structure or function is schematically depicted or shown. In this specification, “one” means not only “single one” but may also mean “two or more.”

[0042] In addition, it should be further understood that the term “and / or” as used in the specification and appended claims of this application means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0043] It should be noted that the terms “mounting,” “connecting with one another,” and “connecting” in this document should be interpreted broadly unless otherwise explicitly defined or limited. For example, these terms may mean a fixed connection, a detachable connection, or an integral connection, and may mean a mechanical connection or an electrical connection. They may also mean a direct connection or an indirect connection through an intermediate medium, and may mean internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in the present invention according to the specific circumstances.

[0044] Furthermore, in the description of this application, terms such as “first,” “second,” etc. are used solely for the purpose of distinguishing descriptions and should not be interpreted as indicating or implying relative importance. It should be noted that the above embodiments may be freely combined as needed. The above description is merely a preferred embodiment of the present invention. Those skilled in the art should note that various improvements and modifications can be made without departing from the principles of the present invention, and that such improvements and modifications are also included within the scope of protection of the present invention.

[0045] Referring to FIGS. 1 and 2, the present invention provides a hair dryer, wherein the hair dryer comprises a main body housing (1), the main body housing (1) comprises a first housing (11) and a handle inner housing (12), a connecting cross section is installed on the outer wall of the first housing (11), and the handle inner housing (12) communicates with the first housing (11) through the connecting cross section, the first housing (11) has a first central axis, and the axial ends of the first housing (11) are a wind discharge end and a wind blocking end, respectively, and the distance between the wind discharge end and the wind blocking end is smaller than a preset distance; the handle inner housing (12) is connected to the axial center of the first housing (11), and the handle inner housing (12) has a second central axis, and the first central axis and the second central axis form a preset angle.

[0046] In this embodiment, the distance between the two axial ends of the first housing (11) is smaller than the preset distance, and the main body housing of the hair dryer satisfies the design requirements for a small axial length and volume, thereby providing an excellent user experience.

[0047] Specifically, the handle inner housing (12) and the first housing (11) have a connecting cross section, and the connecting cross section has a first end and a second end along the direction of a first central axis, the first end is close to the wind discharge end and the second end is close to the wind blocking end, and the distance between the wind discharge end and the wind blocking end is smaller than a preset distance, and the preset distance does not exceed twice the distance between the first end and the second end. If the distance between the first end and the second end is set as L1, the distance between the first end and the wind discharge end is set as L2, and the distance between the second end and the wind blocking end is set as L3, then L1+L2+L3≤2*L1. In other words, L2+L3≤L1. The sum of the distance between the first end and the wind discharge end and the distance between the second end and the wind blocking end is smaller than the distance between the first end and the second end. Preferably, the distance between the first end and the wind discharge end does not exceed half the distance between the first end and the second end, i.e., L2 ≤ L1 * 1 / 2; and the distance between the second end and the wind blocking end does not exceed half the distance between the first end and the second end, i.e., L3 ≤ L1 * 1 / 2. In this case, the main body housing of the hair dryer satisfies design requirements for a small shaft length and volume, providing an excellent user experience.

[0048] It should be noted that in this embodiment, the preset angle between the first central axis and the second central axis is not additionally limited, and as long as the distance between the wind discharge end and the wind blocking end is smaller than the preset distance, everything falls within the scope of protection of the present invention.

[0049] Additionally, the handle inner housing and the first housing are both ring-shaped, and the first central axis and the second central axis form a 90-degree angle, that is, the first housing (11) and the handle inner housing (12) are perpendicular to each other, and the handle inner housing (12) and the first housing (11) are connected. At this time, the distance between the first end and the second end is the diameter length of the handle inner housing (12), and the diameter length of the handle inner housing (12) does not exceed the axial length of the first housing (11). The distance from the connection part between the first housing (11) and the handle inner housing (12) to the wind discharge end does not exceed the radius of the handle inner housing (12); The distance from the connection part between the first housing (11) and the handle inner housing (12) to the wind-blocking end does not exceed the radius of the handle inner housing (12), and the axial length of the main body housing (1) does not exceed twice the diameter of the handle inner housing (12), and the main body housing (1) of the hair dryer satisfies the design requirements for a small axial length and volume, thereby providing an excellent user experience.

[0050] Specifically, the length from one end of the handle inner housing (12) near the wind-blocking end along the first central axis to the wind-blocking end of the main body housing (1) is a first length, and the first length is smaller than or equal to the radius of the handle inner housing (12); the length from one end of the handle inner housing (12) near the wind-discharging end along the first central axis to the wind-discharging end of the main body housing (1) is a second length, and the second length is also smaller than or equal to the radius of the handle inner housing (12); at this time, the sum of the first length and the second length is smaller than or equal to the diameter of the handle inner housing (12), and the axial length of the main body housing (1) is smaller than or equal to twice the diameter of the handle inner housing (12).

[0051] For more details, referring to FIG. 5, a wind exhaust housing (111) is installed at the wind exhaust end, and a heat dissipation assembly (2), a PCB board (3), and a first mounting bracket (4) are installed inside the wind exhaust housing (111), the first mounting bracket (4) is installed between the heat dissipation assembly (2) and the PCB board (3), and the first mounting bracket (4) is fixedly connected to the heat dissipation assembly (2) and the PCB board (3), and the heat dissipation assembly (2) is close to the wind exhaust end; a wind blocking housing (112) is installed at the wind blocking end, and the wind blocking housing (112) is fixedly connected to the first mounting bracket (4). In this embodiment, the first mounting bracket (4) securely connects the heat dissipation assembly (2) and the PCB board (3), and the heat dissipation assembly (2), the PCB board (3), and the first mounting bracket (4) are all installed together within the wind exhaust housing (111), and the wind exhaust housing (111) is inserted and installed at the wind exhaust end of the main body housing (1); the wind blocking end of the main body housing (1) is inserted and installed into the wind blocking housing (112), and the wind blocking housing (112) is securely connected to the first mounting bracket (4), so that the wind blocking housing (112) and the wind exhaust housing (111) are securedly mounted at both axial ends of the main body housing (1), thereby allowing the heat dissipation assembly (2), the PCB board (3), and the first mounting bracket (4) to be securedly mounted within the main body housing (1).

[0052] It should be noted that a ventilation groove is installed on the wind exhaust housing (111), and the ventilation groove is configured to communicate with the wind exhaust housing (111) and the handle inner housing (12), and the ventilation groove is oriented toward the wind-blocking end, and the bottom of the ventilation groove is flush with one end of the handle inner housing (12) that is close to the wind exhaust end, thereby allowing the cold air flow inside the handle inner housing (12) to smoothly enter the wind exhaust housing (111).

[0053] Additionally, the first length is slightly smaller than the second length, and the distance from the connection part between the first housing (11) and the handle inner housing (12) to the wind discharge end is greater than the distance from the connection part between the first housing (11) and the handle inner housing (12) to the wind blocking end, and the time for the airflow to pass through the heat dissipation assembly (2) is increased so that the heating effect of the heat dissipation assembly (2) can be ensured.

[0054] Additionally, referring to FIGS. 3 and 4, the PCB board (3) is positioned relatively to one side near the wind-blocking end on the second central axis; there is a gap between the first mounting bracket (4), the PCB board (3), and the heat dissipation assembly (2), and one end of the heat dissipation assembly (2) near the wind-blocking end is positioned relatively to one side near the wind-blocking end on the second central axis.

[0055] In this embodiment, one end of the heat dissipation assembly (2) adjacent to the wind-blocking end is positioned relative to one side adjacent to the wind-blocking end on the second central axis, and the hair dryer of the present invention maintains the axial length of the heat dissipation assembly (2) to the maximum extent, thereby allowing the heat dissipation assembly (2) to heat the airflow more quickly and ensuring the hot air effect of the hair dryer.

[0056] Specifically, the PCB board (3) and the first mounting bracket (4) are positioned relatively to one side of the second central axis that is close to the wind-blocking end, so that the PCB board (3) and the first mounting bracket (4) are close to the wind-blocking end of the main body housing (1), and the second central axis divides the internal space of the handle inner housing (12) into upper and lower parts along the axial direction, the upper part is close to the wind-blocking end and the lower part is close to the wind-discharge end, that is, the PCB board (3) and the first mounting bracket (4) are positioned at the upper end, and one end of the heat dissipation assembly (2) close to the wind-blocking end is positioned relatively to one side of the second central axis that is close to the wind-blocking end, that is, one end of the heat dissipation assembly (2) close to the wind-blocking end is positioned at the upper end and the other end of the heat dissipation assembly (2) reaches the wind-discharge end, and at this time, both ends of the heat dissipation assembly (2) are positioned relatively to both sides of the second central axis, and the length of the heat dissipation assembly (2) is greater than half the axial length of the first housing (11). By making maximum use of the space within the first housing (11), the heat dissipation assembly (2) can heat the airflow for a longer period, thereby ensuring the heating effect of the air exhauster.

[0057] It should be noted that the PCB board (3) is circular, and at least one flat square is installed around the perimeter of the PCB board (3) along the periphery of the PCB board (3). The installation of the flat square creates a relatively large gap between the PCB board (3) and the inner wall of the wind exhaust housing (111), so that the airflow from the inner housing (12) of the handle toward the wind exhaust housing (111) enters the rear side of the PCB board (3) through the flat square. The airflow in this area then flows from the rear side of the PCB board (3) toward the front side of the wind exhaust housing (111) and blows out from the wind exhaust end, thereby improving the heat dissipation effect of the PCB board (3).

[0058] Additionally, referring to FIGS. 5 to 10, the heat dissipation assembly (2) comprises a filament assembly (21), a ring-shaped inner housing (22), a ring-shaped housing (23), and a second mounting bracket (24). A plurality of support members (221) are installed surrounding the ring-shaped inner housing (22) along the direction of a first central axis, and the filament assembly (21) is installed surrounding the direction of the first central axis and surrounded by each support member (221). One end of the filament assembly (21) adjacent to the wind-blocking end is positioned relative to the second central axis; both the ring-shaped housing (23) and the ring-shaped inner housing (22) are installed on one side of the second mounting bracket (24) adjacent to the wind-discharge end, and the ring-shaped housing (23) is installed coaxially on the outside of the ring-shaped inner housing (22) in a sleeve.

[0059] In this embodiment, one end of the ring-shaped inner housing (22) is positioned relative to one side close to the wind-blocking end on the second central axis, and one end of the filament assembly (21) close to the wind-blocking end is positioned relative to the second central axis, thereby ensuring the axial length of the filament assembly (21), ensuring an airflow heating effect, and reducing the contact time between the airflow and the filament assembly (21), thereby improving the heating efficiency of the airflow.

[0060] Specifically, one end of the filament assembly (21) adjacent to the wind-blocking end is located at the center of the airflow inside the handle inner housing (12), the filament assembly (21) includes at least one filament, the filament is wavy, the filament is wound around a plurality of circumferences along the axial direction of the ring-shaped inner housing (22), and the surface where each circumference filament is located is perpendicular to the outer ring surface of the ring-shaped inner housing (22), a heating area is formed between two adjacent support members (221), and some filaments are located in the heating area. The starting end of the filament is located relative to the second central axis. At the same time, the filament uses a wave shape, and within the wavelength range, the surface where the filament is located is nearly perpendicular to the axis of the ring-shaped inner housing (22); that is, the surface where each filament coil is located is perpendicular to the outer ring surface of the ring-shaped inner housing (22), thereby increasing the contact area between the airflow and the filament, and improving the efficiency of the filament heating the airflow. The filament assembly (21) may preferably include two filaments, and the two filaments are connected in parallel and wound around each support member (221), with a predetermined gap provided between the two filaments. Compared to a single filament, the two parallel-connected and spaced filaments are longer and have a wider contact area with the airflow, resulting in higher heating efficiency for the airflow. The ring-shaped housing (23) and the ring-shaped inner housing (22) are installed coaxially so that the filament assembly (21) is positioned relative to the ring-shaped housing (23) and the ring-shaped inner housing (22), thereby more preferably blocking heat from the filament assembly (21) and reducing the temperature of the first housing (11), thereby preventing the first housing (11) of the hair dryer from causing burns to the user or deforming due to high temperature, and improving the user's experience.Preferably, the ring-shaped housing (23) is positioned on the inner ring surface of the wind exhaust housing (111) and maintains the same shape as the wind exhaust housing (111), and when the ring-shaped inner housing (22) is positioned inside the wind blocking housing (112), the ring-shaped housing (23) is positioned coaxially with the ring-shaped inner housing (22). The ring-shaped housing (23), the ring-shaped inner housing (22), and the support member (221) may be manufactured from a mica sheet, porous ceramic, ceramic-based insulating material, or high-temperature insulating surface, and may also be manufactured by spraying a high-temperature heat-resistant and insulating coating onto a substrate. The first mounting bracket (4) securely connects the heat dissipation assembly (2) and the PCB board (3) so that the heat dissipation assembly (2) and the PCB board (3) are installed together within the wind exhaust housing (111), thereby strengthening the connection effect between the heat dissipation assembly (2) and the PCB board (3) and reducing the axial length after mounting the heat dissipation assembly (2) and the PCB board (3). Additionally, the ring-shaped housing (23) is installed on the inner ring surface of the wind exhaust housing (111) to further strengthen the thermal insulation effect of the heat dissipation assembly (2), thereby preventing the first housing (11) from causing burns to the user or deforming due to high temperatures, resulting in a tight arrangement and high space utilization.

[0061] It should be noted that each filament has multiple curved sections, and the ends of the multiple curved sections are connected to form a closed, wavy, curved ring shape. It is understood that by forming a wavy, curved ring shape, the effect of increasing the filament coverage rate within the first chamber is achieved, allowing cold air to be heated faster as it passes through the filament. Furthermore, through simple structural modifications, heating efficiency is increased and space utilization is simultaneously improved, resulting in excellent practicality. Multiple limiting teeth are installed on one end of the support member (221) that is away from the ring-shaped inner housing (22), and limiting grooves are formed between adjacent limiting teeth. Each of the multiple filaments is provided with a corresponding limiting groove to prevent the filament from deflecting. The limiting teeth form multiple limiting grooves to fix the filament, and when hot or cold air is continuously output, the filament on the ring-shaped inner housing (22) remains trapped within the limiting grooves, preventing deflection due to the influence of wind, and the overall structure is more reliable and practical. In addition, the number and width of the limiting teeth must be adjusted according to specific circumstances; for example, the number of teeth can be increased or the width of the limiting groove can be adjusted by adjusting the width of the limiting teeth according to different winding methods of the filament.

[0062] Additionally, referring to FIGS. 11 and 12, a control unit (123) is further provided at one end of the handle inner housing (12) adjacent to the first housing (11), and the control unit (123) is recessed toward one side of the wind discharge end along the radial direction of the handle inner housing (12); the control unit (123) is provided with a second flow guide surface (1231) and a third flow guide surface (1232), the second flow guide surface (1231) is installed at one end of the control unit (123) adjacent to the first housing (11), and the PCB board (3) is coplanar with one end of the second flow guide surface (1231) adjacent to the handle inner housing (12); and the third flow guide surface (1232) is installed at one end of the control unit (123) away from the first housing (11).

[0063] In this embodiment, the PCB board (3) is in the same plane as one end of the second flow guide surface (1231) adjacent to the handle inner housing (12), and the cold air flow within the handle inner housing (12) can reach the surface of the PCB board (3) through the flow guides of the second flow guide surface (1231) and the third flow guide surface (1232) of the control unit (123), which is advantageous for heat dissipation of the PCB board (3), thereby preventing the temperature of the PCB board (3) from becoming excessively high and affecting the lifespan of the PCB board (3).

[0064] Specifically, a control assembly is installed within the control unit (123) to control the operation of the hair dryer. The control unit (123) is installed at one end of the handle inner housing (12) near the wind-blocking end, and the control unit (123) is formed by the handle inner housing (12) being recessed inward. Specifically, the control unit (123) includes a second flow guide surface (1231), a third flow guide surface (1232), and a fourth flow guide surface (1233). The fourth flow guide surface (1233) is installed between the second flow guide surface (1231) and the third flow guide surface (1232). The fourth flow guide surface (1233) follows the direction of the second central axis. The second flow guide surface (1231) is close to the first housing (11) and extends outward, and the third flow guide surface (1232) is far from the first housing (11) and extends outward. The inclination angle of the second flow guide surface (1231) is greater than the inclination angle of the third flow guide surface (1232), and the wind It allows the control unit (123) to pass through smoothly, and has strong wind power and low noise. In addition, the PCB board (3) is in the same plane as one end of the second flow guide surface (1231) that is close to the handle inner housing (12), and the cold air flow that reaches the first housing (11) flows along the lower surface of the PCB board (3) along the direction of the second central axis, and the lower surface of the PCB board (3) is located on one side of the PCB board (3) close to the wind discharge end, and the cold air flow does not undergo heating by the heat dissipation assembly (2), which is advantageous for lowering the temperature of the PCB board (3), so that the cold air flow passes through the heat dissipation assembly (2), is heated, and then passes through the PCB board (3) again, thereby preventing the PCB board (3) from being damaged due to an excessively high temperature.In addition, the second flow guide surface (1231) is inclined toward the wind-blocking end so that the cold air flow of the handle inner housing (12) has inertia to flow toward one wind-blocking end. At this time, the cold air flow not only flows over the lower surface of the PCB board (3), but some of the cold air flow may also reach one side of the PCB board (3) near the wind-blocking end, and some of the cold air flow may flow over the upper surface of the PCB board (3), thereby more effectively removing heat from both sides of the PCB board (3) and preventing the components on the PCB board (3) from overheating.

[0065] Additionally, referring to FIGS. 12 and 13, a flow guide member (124) is further installed at one end of the handle inner housing (12) adjacent to the first housing (11), and the flow guide member (124) is relatively close to the wind discharge end, and the flow guide member (124) is provided with a first flow guide surface (1241), and the first flow guide surface (1241) and the second flow guide surface (1231) guide each other so that the cold air flow of the handle inner housing (12) flows smoothly to the PCB board (3) along the direction of the first flow guide surface (1241) of the flow guide member (124); a plurality of first through holes (41) are further installed in the first mounting bracket (4), and the airflow passing through the PCB board (3) can pass through the first through holes (41) along the direction of the first central axis and flow through the wind discharge end heat dissipation assembly (2).

[0066] In this embodiment, a flow guide member (124) is further installed at one end of the handle inner housing (12) adjacent to the first housing (11), and the first flow guide surface (1241) and the second flow guide surface (1231) of the flow guide member (124) guide each other, thereby reducing the cross-sectional area of ​​the wind channel of the ventilation groove and improving the wind speed of the cold air passing through the ventilation groove, increasing the fluidity of the cold air, and preventing stacking from easily occurring, so that the cold air flows toward the front and rear sides of the PCB board (3), and the cold air condenses around the PCB board (3), thereby further enhancing the heat dissipation effect of the PCB board (3).

[0067] Specifically, the control unit (123) and the flow guide member (124) are each installed on both sides of the second central axis, and the first flow guide surface (1241) of the flow guide member (124) faces the wind-blocking end and the first flow guide surface (1241) gradually rises along the airflow direction, that is, the thickness of the flow guide member (124) gradually increases along the direction of the first central axis, the flow guide member (124) gets closer and closer to the control unit (123), and the cross-sectional area of ​​the channel of the ventilation groove gradually decreases. The first flow guide surface (1241) is close to the first housing (11) and covers a portion of the ventilation groove, so that a small portion of the filament assembly (21) is located in the direction of the flow of cold air, while most of the filament assembly (21) is blocked by the flow guide member (124). At this time, the cold air first flows along the direction of the first flow guide surface (1241) of the flow guide member (124) toward the wind-blocking end, passes through the PCB board (3), and then flows through the heat dissipation assembly (2) along the direction of the first central axis. Additionally, the flow guide member (124) reduces the channel cross-sectional area of ​​the ventilation groove and, while the strength of the blower assembly (5) remains unchanged, increases the wind pressure of the cold air at the above location, thereby improving the wind speed and fluidity of the cold air passing through the ventilation groove, so that the air volume becomes more uniform during the heating and wind discharge process. In this embodiment, three filaments of the filament assembly (21) are located on one side of the first flow guide surface (1241) adjacent to the wind-blocking end, and the rest are all blocked by the flow guide member (124). A plurality of first through holes (41) are further installed in the first mounting bracket (4) so ​​that the first mounting bracket (4) forms a hollow structure. The first through holes (41) allow airflow between the heat dissipation assembly (2) and the PCB board (3) to flow, so that heat generated by the elements of the PCB board (3) is removed by the airflow through the first through holes (41), thereby preventing the temperature of the elements from becoming excessively high and affecting the normal operation of the elements.At the same time, the first through hole (41) may also increase the amount of airflow between the heat dissipation assembly (2) and the PCB board (3) to improve the airflow volume and increase the fluidity of the airflow.

[0068] It should be noted that the inclination angle of the first flow guide surface (1241) is between 0 and 45°, ensuring smooth airflow while also ensuring low noise. A fifth flow guide surface (1242) is further installed at one end of the flow guide member (124) moving away from the first housing (11), and the inclination of the fifth flow guide surface (1242) is greater than the inclination of the first flow guide surface (1241). As the angle at which the airflow changes its flow direction when passing through the fifth flow guide surface (1242) is greater than that of the first flow guide surface (1241), the airflow can be guided more favorably to the PCB board (3) inside the main body housing (1), noise can be reduced, and the user experience can be improved. Here, the length of the fifth flow guide surface (1242) is shorter than that of the first flow guide surface (1241), thereby improving the stability of the flow guide effect. The inclination angle of the fifth flow guide surface (1242) is between 0 and 60°, and the flow guide effect is good. The flow guide member (124) is not limited to this and may be a flow guide block, flow guide strip, or flow guide tube, etc., as long as it meets the requirements.

[0069] Additionally, a first insertion connection part (1211) is installed in the inner housing (12) of the handle, and a first insertion groove (1243) is installed in the movable guide member (124). When installing, the movable guide member (124) only needs to be inserted above the first insertion connection part (1211) through the first insertion groove (1243), making installation and disassembly convenient and the structure simple. Furthermore, to ensure a secure connection between the inner housing (12) of the handle and the movable guide member (124), the inner housing (12) of the handle and the movable guide member (124) can be tightened using screws. It should be noted that the present application does not further limit the connection structure between the movable guide member (124) and the inner housing (12) of the handle, and as long as the movable guide member (124) satisfies the requirements for movable guide, it falls within the scope of protection of the present application.

[0070] Additionally, referring to FIG. 4, the support member (221) is symmetrical along the second central axis, and the support member (221) adjacent to the handle inner housing (12) is installed along the direction of the second central axis so that the airflow passing through the support member (221) is classified and flows symmetrically to both sides of the heat dissipation assembly.

[0071] In this embodiment, the support member (221) adjacent to the inner housing (12) of the handle is installed along the direction of the second central axis so that the airflow passing through the support member (221) is classified and flows symmetrically to both sides of the heat dissipation assembly (2), and the airflow on both sides of the heat dissipation assembly (2) becomes more uniform, and the wind discharge and heating effects are stable and reliable.

[0072] Specifically, a plurality of support members (221) are symmetrically distributed along the radial direction of the ring-shaped inner housing (22), and the sealed area formed between the ring-shaped housing (23) and the ring-shaped inner housing (22) is divided equally into a plurality of heating areas through the plurality of support members (221), thereby facilitating gas flow between the two areas and improving heating efficiency. The number of support members (221) can be adjusted according to the size of the ring-shaped inner housing (22) or the required heating effect, and in this embodiment, the support member (221) adjacent to the handle inner housing (12) is installed along the direction of the second central axis so that the cold air flow within the handle inner housing (12) is evenly divided into two air flows by the support member (221), and these two air flows flow along the inner ring surface of the ring-shaped housing (23), so that the amount of air flow on both sides of the support member (221) is generally equal, the air flow on both sides of the heat dissipation assembly (2) becomes more uniform, the hot air flow heated by the heat dissipation assembly (2) becomes more uniform and smooth, and the wind discharge and heating effect become more stable and reliable. Preferably, there are 12 support members (221), and the 12 support members (221) are spaced evenly around the ring-shaped inner housing (22) to divide the ring-shaped inner housing (22) into 12 equal parts, forming 12 heating zones, the spacing between each heating zone is consistent, and a uniform air discharge is greatly ensured. In other embodiments, the number of support members (221) may be adjusted to increase or decrease the number of heating zones. It should be noted that the present application does not limit the specific number of support members (221), includes 12 but is not limited thereto, and is permissible if the support members (221) adjacent to the handle inner housing (12) are installed along the direction of the second central axis to contribute to a uniform air flow distribution, and all of this falls within the scope of protection of the present application.

[0073] Additionally, referring to FIGS. 7 and 8, the ring-shaped inner housing (22) is sleeve-installed on one side of the second mounting bracket (24) adjacent to the wind discharge end, and the second mounting bracket (24) further has a fixing groove (241) installed at a corresponding position of the support member (221), and the support member (221) is hook-connected within the fixing groove (241).

[0074] In this embodiment, the ring-shaped inner housing (22) is sleeve-installed on the second mounting bracket (24), and the support member (221) is inserted into the fixing groove (241), thereby ensuring that the ring-shaped inner housing (22) and the support member (221) are firmly installed on the second mounting bracket (24), so that the fixed connection between the heat dissipation assembly (2) and the first mounting bracket (4) is simplified; at the same time, the axial length of the heat dissipation assembly (2) can be effectively reduced by using the fixing method.

[0075] Specifically, the fixing groove (241) is installed to surround the second mounting bracket (24) along the axial direction, the position of the fixing groove (241) corresponds one-to-one with the position of the support member (221), the opening of the fixing groove (241) faces the wind discharge end, and the ring-shaped inner housing (22) can be slip-on on the outer ring surface of the second mounting bracket (24) along the first central axis direction, and since the ring-shaped inner housing (22) is sleeve-installed on the outer ring surface of the second mounting bracket (24), the ring-shaped inner housing (22) and the second mounting bracket (24) overlap at least partially, thereby reducing the axial length of the heat dissipation assembly (2). At this time, the support member (221) is inserted into the fixing groove (241), and the support member (221) performs a supporting action, thereby strengthening the connection strength between the ring-shaped inner housing (22) and the second mounting bracket (24) to prevent separation between the ring-shaped inner housing (22) and the second mounting bracket (24). Preferably, a plurality of positioning grooves are further installed in the ring-shaped inner housing (22), and the positioning grooves are installed to correspond one-to-one with the support member (221); each support member (221) is equipped with a positioning buckling member that matches each other to the positioning groove, and the positioning buckling member is connected by hooking to the corresponding positioning groove so that the support member (221) can be fixed to the ring-shaped inner housing (22). The combined use of the positioning groove and the positioning buckling member ensures the stability of the support member (221) and, at the same time, ensures precise positioning of the support member (221), which is advantageous for mounting the support member (221), and may also prevent the support member (221) from being deflected or sliding during the process of the operator mounting the filament to the support member (221).

[0076] Additionally, referring to FIGS. 9 and 10, a first buckling member (42) and a first fixing structure (43) are installed at one end of the first mounting bracket (4), the first buckling member (42) is buckled to the peripheral edge of the PCB board (3), and the first fixing structure (43) penetrates the PCB board (3) and is fixedly connected to the wind-blocking housing (112); a second buckling member (44) and a second fixing structure (45) are installed at the other end of the first mounting bracket (4), the second buckling member (44) is buckled to the second mounting bracket (24), and the second fixing structure (45) is fixedly connected to the second mounting bracket (24).

[0077] In this embodiment, the first mounting bracket (4) is fixedly connected through the first buckling member (42), the first fixing structure (43), and the PCB board (3); the first mounting bracket (4) is fixedly connected through the second buckling member (44), the second fixing structure (45), and the second mounting bracket (24) so ​​that the PCB board (3) and the heat dissipation assembly (2) are fixedly mounted within the wind exhaust housing (111), and the connection strength of the PCB board (3) and the heat dissipation assembly (2) is strengthened to prevent the position of the PCB board (3) and the heat dissipation assembly (2) from changing, and the installation efficiency of the PCB board (3) and the heat dissipation assembly (2) may also be improved.

[0078] Specifically, there are at least two first buckling members (42), and the two first buckling members (42) are installed on one side close to the PCB board (3), and the two first buckling members (42) are each located on both sides of the outer edge of the first mounting bracket (4). The first buckling members (42) are buckled to the PCB board (3) to support and fix the PCB board (3). By buckling the PCB board (3) through at least two first buckling members (42), the PCB board (3) is restricted from moving away from the first mounting bracket (4), thereby preventing the outer edge of the PCB board (3) from vibrating significantly under the action of high-speed airflow, and preventing the PCB board (3) from cracking or even being damaged. Additionally, the connection between the PCB board (3) and the heat dissipation assembly (2) is prevented from being damaged. Furthermore, by fixing the PCB board (3) through the first buckling members (42), the installation and disassembly efficiency can be improved. The first fixed structure (43) includes at least two first mounting columns, and the first mounting columns are installed in a distributed manner on one side of the first mounting bracket (4) adjacent to the PCB board (3). The PCB board (3) has mounting holes through which the first mounting columns pass, and the first mounting columns pass through the mounting holes of the PCB board (3) and are fixedly connected to the wind-blocking housing (112). Through the distributed first mounting columns, relative rotation between the PCB board (3) and the first mounting bracket (4) can be prevented on the one hand, and the connection between the PCB board (3) and the heat dissipation assembly (2) can be prevented. On the other hand, the multiple first mounting columns perform a guide function for the installation of the PCB board (3), thereby preventing the PCB board (3) from being installed incorrectly and improving the installation efficiency of the PCB board (32).A second support member (242) is further installed in the middle of one side of the second mounting bracket (24) adjacent to the wind-blocking end, and the second support member (242) limits the distance between the first mounting bracket (4) and the second mounting bracket (24) so ​​as not to cause the heat dissipation assembly (2) to be too close to the first mounting bracket (4) and thus damage the first mounting bracket (4). A first support member (46) is installed at a corresponding position of the first mounting bracket (4), and a plurality of third support members are installed along the peripheral direction of the second mounting column at one end of the second mounting column connected to the first mounting bracket (4), and the third support members support the PCB board (3). Both the first support member (46) and the third support members are intended to control the distance between the first mounting bracket (4) and the PCB board (3), thereby preventing the first mounting bracket (4) and the PCB board (3) from being too close to each other, which would affect the heat dissipation of the PCB board (3), and on the other hand, preventing the first mounting bracket (4) from pressing on the components on the PCB board (3). The first support member (46) is provided with a first insertion hole, and the second support plate is provided with a second insertion hole. A hook is installed on the second mounting bracket (24), and a slot is installed on the first support portion (46) of the first mounting bracket (4). The hook and the slot are connected by a hook so that the second buckling member (44) is buckled to the second support portion (242) and the first support portion (46).The second fixed structure (45) includes a plurality of second mounting columns and a boring, and the second mounting column is installed on one side of the second mounting bracket (24) adjacent to the first mounting bracket (4), and the boring is installed on the first mounting bracket (4) at a position corresponding to the second mounting column, and the second mounting column and the boring are fixedly connected through a screw, thereby fixing the second mounting bracket (24) and the first mounting bracket (4). The installation of the boring is such that the screw of the boring does not protrude beyond the surface of the first mounting bracket (4), so as not to affect the component on the PCB board (3), and the second mounting bracket (24) is located in the gap between the second mounting bracket (24) and the first mounting bracket (4), so as not to increase the axial length of the heat dissipation assembly (2).

[0079] It should be noted that a plurality of first through holes are further installed in the first mounting bracket (4), and reinforcing ribs are installed within the first through holes and arranged radially overall to improve the overall strength of the first mounting bracket (4). The reinforcing ribs include an outer rib and an inner rib, one end of the inner rib is connected to the outer edge of the first mounting bracket (4), and the other end extends in a direction away from the first mounting bracket (4), the inner ribs are generally radially arranged, and the outer ribs are sequentially connected to the end of the inner ribs that are away from the first mounting bracket (4). Through the installation of the outer ribs and inner ribs, the inner ribs are arranged radially overall, which can improve the smoothness of thermal airflow of the components on the PCB board through the first through holes (41) and simultaneously ensure the overall strength of the first mounting bracket (4). The first buckling member (42) and the second buckling member (44) include, but are not limited to, buckling structures such as hooks and slots. The first fixed structure (43) and the second fixed structure (45) include, but are not limited to, fixed structures such as mounting columns and screws.

[0080] Additionally, referring to FIG. 7, a thermistor (125) and a temperature controller (126) are installed at one end of the ring-shaped inner housing (22) adjacent to the wind discharge end, and the thermistor (125) and the temperature controller (126) are symmetrical in the direction of the first central axis, and the thermistor (125) and the temperature controller (126) are located relative to the center of both the left and right sides of the outer ring surface of the ring-shaped inner housing (22).

[0081] In this embodiment, the thermistor (125) and the temperature controller (126) are symmetrical to each other along the first central axis direction, and the spatial distribution is more reasonable. At the same time, the thermistor (125) and the temperature controller (126) are far apart from each other, so that the temperature of the hot air passing through the filament assembly (21) can be monitored over a wider range. Additionally, a plurality of support members (221) uniformly divide the ring-shaped inner housing (22), and the thermistor (125) and the temperature controller (126) are located relative to the center of both the left and right sides of the outer ring surface of the ring-shaped inner housing (22), and are located at the two points where the temperature inside the ring-shaped housing (23) is highest, so that the thermistor (125) and the temperature controller (126) can accurately monitor the temperature of the hot air passing through the filament assembly (21) in a timely manner.

[0082] Specifically, a second concave groove is installed at one end of the ring-shaped inner housing (22) adjacent to the wind discharge end, and a temperature controller (126) is mounted in the second concave groove and positioned relative to the outer ring surface of the ring-shaped inner housing (22), and the temperature controller (126) and the filament assembly (21) are spaced apart from each other, and additionally, the temperature controller (126) is located near the wind discharge end of the main body housing (1) so that it can sample and monitor the hot air passing through the filament assembly (21). A first concave groove is further installed at one end of the ring-shaped inner housing (22) adjacent to the wind discharge end, and a connecting member of the thermistor (125) passes through the first concave groove and is connected to the PCB board (3) inside the ring-shaped inner housing (22), so that the connecting member can be effectively protected. The first concave groove and the second concave groove are located relative to the center of both the left and right sides of the outer ring surface of the ring-shaped inner housing (22), and the first concave groove and the second concave groove are installed symmetrically along the first central axis. A fuse is further installed on the inner ring surface of the ring-shaped inner housing (22), and the fuse is installed along the direction of the first central axis. A third concave groove is further installed through the ring-shaped inner housing (22) at a position corresponding to the fuse, and the third concave groove and the fuse are matched with each other, and the fuse is located relative to the inside of the ring-shaped inner housing (22). A fuse is further installed on the inner ring surface of the ring-shaped inner housing (22), and since the fuse melts upon overload, it prevents the filament assembly (21) from reaching a high temperature and prevents serious damage caused by the hair dryer. In addition, the ring-shaped inner housing (22) has a third concave groove that matches the fuse, so that the fuse maintains a good operating environment and does not melt prematurely or delay melting.

[0083] It should be noted that in this embodiment, 12 support members (221) are spaced evenly around the ring-shaped inner housing (22) to divide the ring-shaped inner housing (22) into 12 equal parts, and the support members (221) on both the left and right sides of the outer ring surface of the ring-shaped inner housing (22) are parallel to each other, and the thermistor (125) is located on the upper side of the support member (221) and the temperature controller (126) is located on the lower side of the support member (221); or the temperature controller (126) is located on the upper side of the support member (221) and the thermistor (125) is located on the lower side of the support member (221).

[0084] Additionally, referring to FIG. 10, a capacitor (31) is further installed in the center of one end of the PCB board (3) near the wind discharge end, and the capacitor (31) penetrates the first mounting bracket (4) and the second mounting bracket (24) to reach the inside of the ring-shaped inner housing (22), and the capacitor (31) does not extend beyond the ring-shaped inner housing (22).

[0085] In this embodiment, the capacitor (31) is installed in the center of the PCB board (3) near the wind discharge end, and the capacitor (31) penetrates the first mounting bracket (4) and the second mounting bracket (24) to reach the inside of the ring-shaped inner housing (22), effectively preventing the problem of accommodating a large capacitor (31) and reducing the axial length of the main body housing (1); furthermore, the capacitor (31) is positioned relatively in the center of the ring-shaped inner housing (22) and does not extend beyond the ring-shaped inner housing (22), effectively protecting the capacitor (31) so that it is not damaged by high temperature.

[0086] Specifically, the capacitor (31) overlaps with at least a part of the heat dissipation assembly (2) to reduce the gap between the PCB board (3) and the heat dissipation assembly (2) and to reduce the space occupied by the PCB board (3) and the heat dissipation assembly (2) in the axial direction of the main body housing (1), thereby making the main body housing (1) thinner and satisfying the requirements for miniaturization and user use. The capacitor (31) is located inside the ring-shaped inner housing (22), and the ring-shaped inner housing (22) effectively reduces the transfer of heat from the filament assembly (21) to the inside of the ring-shaped inner housing (22), thereby preventing the capacitor (31) from overheating, and furthermore, the overall structure is simple and easy to mount. A second support member (242) is further installed at the center of one side of the second mounting bracket (24) close to the wind-blocking end, and the second support plate is provided with a second insertion hole. A first support member (46) is also installed at a corresponding position of the first mounting bracket (4), and the first support member (46) is provided with a first insertion hole. A capacitor (31) passes through the first insertion hole and the second insertion hole to reach the inside of the ring-shaped inner housing (22). Additionally, the first support member (46) leaves a gap between the first mounting bracket (4) and the PCB board (3); and the second support member (242) leaves a gap between the first mounting bracket (4) and the second mounting bracket (24), so that the PCB board (3) is too close to the heat dissipation assembly (2), causing the PCB board (3) to overheat and break, and even prevents the PCB board (3) from naturally burning up because the heat of the components of the PCB board (3) cannot be removed.In addition, the capacitor (31) passes through the first insertion hole and the second insertion hole and comes into contact with the second support member (242) and the first support member (46), and the first support member (46) comes into contact with the PCB board (3). The second support member (242) and the first support member (46) are installed as sleeves on the outside of the capacitor (31) to effectively protect the capacitor (31) and prevent the capacitor (31) from receiving residual heat; during the mounting process, the second support member (242) and the first support member (46) have a certain mounting guide characteristic so that the capacitor (31) is easily inserted into the first mounting bracket (4) and the second mounting bracket (24).

[0087] Additionally, referring to FIGS. 2 and FIGS. 14, the handle inner housing (12) includes a first inner housing (121) and a second inner housing (122), and a ring-shaped connector is installed at one end of the first inner housing (121) adjacent to the first housing (11), the ring-shaped connector fixes the center of the first housing (11); the second inner housing (122) is hook-coupled to the first housing (11) along the direction of the first central axis, and the first housing (11) is adjacent to the wind discharge end.

[0088] In this embodiment, the first inner housing (121) and the second inner housing (122) interlock vertically to form the handle inner housing (12), making assembly simple and quick. The first inner housing (121) is provided with a ring-shaped connecting part that is fixedly connected to the first housing (11), thereby strengthening the connection strength between the handle inner housing (12) and the first housing (11).

[0089] Specifically, a control unit (123) is installed on one side of the first housing (11) near the wind blocking end, and a first insertion connection unit (1211) is installed on one side of the ring-shaped connection unit near the wind discharge end, and a flow guide member (124) is inserted and connected to the first insertion connection unit (1211); and a blower assembly (5) is further installed inside the first housing (11).

[0090] It should be noted that the blower assembly (5) includes, but is not limited to, a fan, an air pump, etc., and the present application does not further limit it.

[0091] Additionally, referring to FIGS. 1 and FIGS. 14, a second housing (6) is further included, the second housing (6) is sleeve-installed in the handle inner housing (12) along the direction of the second central axis, and a cover (61) and an inner filter frame (62) are further installed at one end of the second housing (6) away from the first housing (11), the inner filter frame (62) is hook-installed in the first housing (11), and the cover (61) is sleeve-installed so as to be detachably sleeve-installed in the inner filter frame (62) through a magnetic structure.

[0092] In this embodiment, the second housing (6) is sleeve-installed in the handle inner housing (12) along the direction of the second central axis, so as to effectively prevent damage to the control element and the blower assembly (5) inside the handle inner housing (12); additionally, a cover (61) and an inner filter frame (62) are further installed at one end of the second housing (6) away from the first housing (11), and the inner filter of the inner filter frame (62) can prevent foreign matter from entering the handle inner housing (12); the cover (61) is sleeve-installed to the inner filter frame (62) so as to be detachably attached through a magnetic structure, making it convenient to attach and remove, and allowing the cover (61) to be easily separated for internal cleaning.

[0093] Specifically, a wind inlet is installed in the cover (61), and external airflow can enter the handle inner housing (12) by sequentially passing through the wind inlet and the mesh of the internal filter. A first through hole through which a conduit can pass is installed in the internal filter frame (62), and a second through hole through which a conduit can pass is installed in the cover (61). The internal filter frame (62) includes an upper ring, a lower plate, and an intermediate rib connecting the upper ring and the lower plate. The upper ring is detachably connected to the bottom of the second housing (6), the first through hole is installed in the lower plate, the internal filter is connected to the intermediate rib and is located between the upper ring and the lower plate; the cover (61) includes a cover wall and a top cover, a wind inlet is installed in the cover wall, and the top cover is detachably connected to the lower plate through a magnetic structure.

[0094] It should be noted that the inner filter and the inner filter frame (62) both have a column shape. The second housing (6) is equipped with a sliding hole and a button hole used in the control unit (123), so that the control element of the handle inner housing (12) is easily controlled from the second housing (6).

[0095] It should be noted that the above embodiments may be freely combined as needed. The above description is merely a preferred embodiment of the present invention, and those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and it should be kept in mind that such improvements and modifications also fall within the scope of protection of the present invention. Explanation of the symbols

[0096] 1: Main body housing 11: 1st Housing 111: Wind exhaust housing 112: Wind Blocking Housing 12: Handle inner housing 121: 1st inner housing 1211: First insertion connection 122: Second inner housing 123: Control unit 1231: Second fluid guide surface 1232: 3rd fluid guide surface 1233: 4th fluid guide surface 124: Flow guide member 1241: First fluid guide surface 1242: 5th fluid guide surface 1243: 1st insertion groove 125: Thermister 126: Temperature controller 2: Heat dissipation assembly 21: Filament Assembly 22: Ring-shaped internal housing 221: Lack of support 23: Ring-shaped housing 24: Second mounting bracket 241: Fixed groove 242: 2nd Support Unit 3: PCB board 31: Capacitor 4: First mounting bracket 41: The First Communion 42: First buckling component 43: First fixed structure 44: Second buckling missing 45: Second fixed structure 46: 1st Support Section 5: Blower assembly 6: Second Housing 61: Cover 62: Internal filter frame

Claims

Claim 1 A hair dryer comprising a main body housing, wherein the main body housing comprises a first housing and a handle inner housing, wherein a connecting cross-section is installed on the outer wall of the first housing, and the handle inner housing communicates with the first housing through the connecting cross-section; wherein the first housing comprises a first central axis, and at the first central axis, both ends of the first housing are a wind discharge end and a wind blocking end, respectively; In the direction of the first central axis, both ends of the connecting cross-section are respectively a first end and a second end, and the distance between the wind discharge end and the wind blocking end does not exceed twice the distance between the first end and the second end, the connecting cross-section is located relative to the middle position of the first housing in the first central axis, and the handle inner housing has a second central axis perpendicular to the first central axis, the first end is close to the wind discharge end, and the second end is close to the wind blocking end, the distance between the first end and the wind discharge end does not exceed the radius of the connecting cross-section, and the distance between the second end and the wind blocking end does not exceed the radius of the connecting cross-section, a wind discharge housing is installed at the wind discharge end, and a heat dissipation assembly, a PCB board, and a first mounting bracket are installed within the wind discharge housing, the first mounting bracket is installed between the heat dissipation assembly and the PCB board, and the first mounting bracket fixes the heat dissipation assembly and the PCB board, and the A heat dissipation assembly is located near the wind discharge end; a wind blocking housing is installed at the wind blocking end, the wind blocking housing is fixedly connected to the first mounting bracket, and the PCB board is located relatively on one side near the wind blocking end at the second central axis;A hair dryer characterized in that there is a gap between the first mounting bracket, the PCB board, and the heat dissipation assembly, and one end of the heat dissipation assembly is positioned relative to one side of the wind blocking end at the second central axis, and the inner housing of the handle is further provided with a control unit at one end close to the first housing, and the control unit is recessed toward one side of the wind discharge end along the radial direction of the inner housing of the handle; the control unit has a second flow guide surface and a third flow guide surface, the second flow guide surface is installed at one end of the control unit close to the first housing, and the PCB board forms a plane with the second flow guide surface and the end close to the inner housing of the handle; and the third flow guide surface is installed at one end of the control unit away from the first housing. Claim 2 A hair dryer according to claim 1, wherein a flow guide member is further installed at one end of the handle inner housing adjacent to the first housing, the flow guide member is relatively close to the wind discharge end, the flow guide member has a first flow guide surface, and the first flow guide surface and the second flow guide surface are opposite each other so that the cold air flow of the handle inner housing can flow to the PCB board along the direction of the first flow guide surface of the flow guide member; and wherein a plurality of first through holes are further installed in the first mounting bracket so that the airflow passing through the PCB board flows to the wind discharge end through the first through holes along the direction of the first central axis and passes through the heat dissipation assembly. Claim 3 A hair dryer according to claim 1, wherein the heat dissipation assembly comprises a filament assembly, a ring-shaped inner housing, a ring-shaped housing, and a second mounting bracket, wherein a plurality of support members are installed surrounding the ring-shaped inner housing along the direction of the first central axis, the filament assembly is installed surrounding the direction of the first central axis and surrounded by each of the support members, and one end of the filament assembly adjacent to the wind-blocking end is positioned relative to the second central axis; and both the ring-shaped housing and the ring-shaped inner housing are installed on one side adjacent to the wind-discharge end of the second mounting bracket, and the ring-shaped housing is installed coaxially in a sleeve on the outside of the ring-shaped inner housing. Claim 4 A hair dryer according to claim 3, wherein the support member is symmetrical along the second central axis, and the support member adjacent to the inner housing of the handle is installed along the direction of the second central axis, so that the airflow passing through the support member is divided and flows symmetrically to both sides of the heat dissipation assembly. Claim 5 A hair dryer characterized in that, in paragraph 3, the ring-shaped inner housing is sleeve-installed on one side of the second mounting bracket adjacent to the wind discharge end, the second mounting bracket further has a fixing groove installed at a position corresponding to the support member, and the support member is hook-connected within the fixing groove. Claim 6 A hair dryer according to claim 3, wherein a first buckling member and a first fixing structure are installed at one end of the first mounting bracket, the first buckling member is buckled along the periphery edge of the PCB board, and the first fixing structure penetrates the PCB board and is fixedly connected to the wind-blocking housing; and a second buckling member and a second fixing structure are installed at the other end of the first mounting bracket, the second buckling member is buckled to the second mounting bracket, and the second fixing structure is fixedly connected to the second mounting bracket. Claim 7 A hair dryer according to claim 3, wherein a thermistor and a temperature controller are further installed at one end of the ring-shaped inner housing adjacent to the wind discharge end, the thermistor and the temperature controller are symmetrical with respect to the first central axis direction, and the thermistor and the temperature controller are located relatively at the center of both the left and right sides of the outer ring surface of the ring-shaped inner housing. Claim 8 A hair dryer according to paragraph 3, wherein a capacitor is further installed at the center of one end of the PCB board adjacent to the wind discharge end, and the capacitor penetrates the first mounting bracket and the second mounting bracket to reach the interior of the ring-shaped inner housing, and the capacitor does not extend beyond the ring-shaped inner housing. Claim 9 A hair dryer according to claim 1, wherein the handle inner housing comprises a first inner housing and a second inner housing, wherein the first inner housing has a ring-shaped connecting part installed at one end adjacent to the first housing, and the ring-shaped connecting part fixes the center of the first housing; and wherein the second inner housing is hook-coupled to the first housing along the direction of the first central axis, and the first housing is adjacent to the wind discharge end. Claim 10 A hair dryer according to claim 9, wherein a control unit is installed on one side of the first housing adjacent to the wind blocking end, a first insertion connection unit is installed on one side of the ring-shaped connection unit adjacent to the wind discharge end, and a flow guide member is inserted and connected to the first insertion connection unit; and a blower assembly is further installed inside the first housing. Claim 11 A hair dryer according to claim 10, further comprising a second housing, wherein the second housing is sleeve-installed in the handle inner housing along the direction of the second central axis, and a cover and an inner filter frame are further installed in the second housing at one end away from the first housing, wherein the inner filter frame is hook-installed in the first housing, and the cover is sleeve-installed in the inner filter frame so as to be detachably attached through a magnetic structure. Claim 12 delete Claim 13 delete Claim 14 delete Claim 15 delete

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