Hair drier

Abstract

The utility model discloses a hair dryer, which belongs to the field of life electric appliances, solves the problem of air leakage at a threading position at the joint of a head and a handle of a high-speed hair dryer, and adopts the technical scheme that the head is connected to the top of the handle and comprises a main shell, and the handle comprises an outer shell and an inner shell. The main shell is connected with the top of the inner shell, the outer shell covers the periphery of the inner shell and covers the joint of the inner shell and the main shell, the main shell is provided with a threading through hole for a wire to insert, a sealing gasket is arranged in the threading through hole, the wire penetrates through the sealing gasket, and the top end of the inner shell is inserted into the threading through hole to abut against the sealing gasket. The utility model is mainly used for improving the sealing performance, improving the user experience, prolonging the service life of the product, improving the safety and reducing the production cost.

Description

Technical Field

[0001] This utility model relates to electrical equipment, and in particular to a hair dryer. Background Technology

[0002] Hair dryers are a necessity in people's daily lives, and high-speed hair dryers are becoming increasingly popular in the market. High-speed hair dryers are characterized by a maximum rotation speed of over 100,000 RPM. This high speed delivers a large air volume and high air velocity, allowing hair to be dried more quickly and bringing great convenience to our lives.

[0003] However, high speed also brings new challenges to the machine's performance. To ensure high air velocity and high air volume, the sealing performance of the internal structure must be excellent. Driven by a high-speed motor, even slight defects in the sealing of the internal air ducts can significantly impact performance. Among the structural components, the sealing structure at the connection point between the head and the handle, where the wiring passes through, is the most challenging technical aspect.

[0004] There are several existing sealing solutions for the wiring connection between the machine head and handle, but all have certain drawbacks. Hot melt adhesive bonding generally provides only average sealing performance because the neutral and live wires pass through the connection point, and the adhesion between the hot melt adhesive and the wiring harness is poor, leading to air leakage over time. Using soft adhesives can cause gaps due to wire harness compression during production line assembly, resulting in very poor product consistency. Silicone sealing is prone to deformation due to the close proximity of the silicone to the switch, leading to poor sealing performance.

[0005] The shortcomings of these existing technologies lead to problems such as air leakage at the connection point between the head and handle of high-speed hair dryers, affecting user experience and product lifespan. Furthermore, poor sealing may compromise product safety, especially around electrical components where sealing is particularly critical. In addition, existing sealing solutions increase manufacturing complexity and cost, impacting the product's market competitiveness.

[0006] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0007] The purpose of this invention is to provide a hair dryer that solves the problem of air leakage at the connection point between the head and handle of a high-speed hair dryer, thereby improving sealing performance, enhancing user experience, extending product life, improving safety, and reducing production costs.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a hair dryer, including a head and a handle, the head being provided with a hot air assembly, the handle being provided with a switch, the switch being electrically connected to the hot air assembly via a wire, the head being connected to the top of the handle, the head including a main housing, the handle including an outer housing and an inner housing, the top of the main housing being connected to the inner housing, the outer housing covering the outer periphery of the inner housing and covering the connection between the inner housing and the main housing, the main housing being provided with a through hole for inserting a wire, a sealing gasket being provided in the through hole, the wire passing through the sealing gasket, and the top of the inner housing being inserted into the through hole and pressing against the sealing gasket.

[0009] By adopting the above technical solution, this utility model has the following advantages: the through-hole on the main housing provides a stable channel for the wire, while the sealing gasket ensures the seal between the wire and the through-hole. After the wire passes through the sealing gasket, it contacts the top of the inner housing, making the entire structure more compact and stable. The top of the inner housing is inserted into the through-hole and abuts against the sealing gasket, further enhancing the sealing effect and preventing seal failure due to wire movement. This application solves the problems of poor sealing performance, poor consistency, and severe deformation in traditional hot melt adhesive, soft adhesive, and silicone sealing solutions by using the design of the sealing gasket and through-hole. The interference fit between the sealing gasket and the wire ensures the reliability of the seal, and the wire will not cause seal failure due to vibration or heat during high-speed operation, thereby improving the overall performance and service life of the hair dryer.

[0010] Furthermore, the handle is equipped with an operation button for controlling the working state of the hair dryer. The outer shell is provided with a first through hole, and the operation button is located inside the first through hole. An insulating rubber bracket is provided between the operation button and the outer shell to increase the safe insulation distance between the user and the operation button when holding the handle. The insulating rubber bracket covers the operation button and is provided with a button cap for the user to drive the operation button. The button cap extends out of the first through hole for the user to press. The operation button is installed and fixed in the inner shell. The outer shell and the inner shell clamp the insulating rubber bracket so that the insulating rubber bracket seals the edge of the first through hole.

[0011] By employing the aforementioned technical solution, an insulating rubber bracket is installed between the outer casing and the operating button, ensuring a safe insulating distance between the operating button and the outer casing. Furthermore, the insulating rubber bracket covers the operating button, providing a good sealing effect. The button cap protrudes from the first through-hole for user pressing, facilitating operation. Simultaneously, the outer casing and inner casing clamp the insulating rubber bracket, sealing the edge of the first through-hole and further improving the sealing performance.

[0012] Furthermore, the operation button is fixed to the button circuit board, the button circuit board is fixed to the inner housing, and an insulating rubber bracket covers the button circuit board.

[0013] Using the aforementioned technical solution, the button circuit board can be fixed to the inner housing using screws, clips, or other methods, ensuring its sturdiness and accurate positioning. The insulating rubber bracket can be integrally molded, ensuring good insulation while covering the button circuit board. The insulating rubber bracket can be made of rubber with good elasticity and durability to ensure stability and reliability during long-term use.

[0014] Furthermore, the button cap is integrally formed with the insulating rubber bracket, and a receiving groove for accommodating the operating button is formed on the side of the button cap facing the operating button.

[0015] The aforementioned technical solution ensures a tight connection between the button cap and the insulating rubber bracket, avoiding gaps that may occur in traditional assembly methods, and further improving sealing performance and product consistency. The recessed design ensures the stability of the operating button when pressed, preventing displacement or loosening during use, thereby improving product lifespan and user experience.

[0016] Furthermore, the button cap is movably connected to the outer casing, and the insulating rubber bracket is provided with a button pad, which is placed between the button cap and the operation button.

[0017] Using the aforementioned technical solution, the keycap is movably connected to the outer casing, meaning the keycap can move freely within a certain range. The insulating rubber bracket has a keypad, located between the keycap and the operating button, serving as a buffer and isolation layer. The keypad effectively prevents the keycap from directly contacting the operating button, thereby reducing button wear and extending its lifespan.

[0018] Furthermore, the operation buttons and switches are located on opposite sides of the inner housing to increase the safe insulation distance between them.

[0019] By adopting the aforementioned technical solution, the safe insulation distance between the two can be effectively increased, avoiding electrical safety hazards caused by excessively close distance.

[0020] Furthermore, an air inlet channel is formed inside the inner shell, and a hot air channel is provided in the head unit. The hot air channel is connected to the air inlet channel, and the hot air assembly is located in the hot air channel.

[0021] By adopting the aforementioned technical solution, and forming an air inlet channel within the inner casing and connecting the hot air channel to the air inlet channel, the problem of insufficient sealing performance of the internal air duct in existing hair dryers is solved. Therefore, the hot air assembly is located within the hot air channel, effectively improving the working efficiency and performance of the hair dryer. Compared with existing technologies, the technical solution of this application improves the sealing performance of the hair dryer while ensuring the achievement of high wind speed and high air volume, further enhancing the hair dryer's usability and user experience.

[0022] Furthermore, the sealing gasket has a through hole, and the wire is interference-fitted with the sealing gasket.

[0023] By adopting the aforementioned technical solution, it can be ensured that the wires can form a tight fit when passing through the sealing gasket, thereby effectively preventing air leakage and ensuring the working performance of the hair dryer under high wind speed and high air volume.

[0024] Furthermore, one end of the through hole is provided with a guide structure to facilitate the insertion of the wire; or, an opening groove is provided between the hole wall of the through hole and the outer wall of the sealing gasket, through which the wire is inserted into the through hole.

[0025] The aforementioned technical solution allows the wire to be smoothly and securely inserted into the through hole, reducing insertion resistance and improving installation efficiency. The slotted design allows the wire to be inserted into the through hole from the side, which is particularly suitable for situations where the wire cannot be directly inserted from one end of the hole. Through the slotted design, the wire can slide into and be engaged in the through hole from the side of the gasket, ensuring a tight fit between the gasket and the wire, further improving sealing performance.

[0026] Furthermore, the outer peripheral side of the sealing gasket is provided with a side sealing rib that is interference-fitted with the wall of the through hole.

[0027] By employing the aforementioned technical solution, the side sealing ribs are interference-fitted with the wall of the through-hole, ensuring the stability and sealing effect of the sealing gasket within the through-hole. This design effectively prevents air leakage when the wire passes through the sealing gasket, improving the sealing performance of the hair dryer. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram (partial cross-sectional view 1) of a hair dryer according to the present invention;

[0030] Figure 2 for Figure 1 Enlarged view of point I in the middle;

[0031] Figure 3 This is a schematic diagram (partial cross-sectional view 2) of a hair dryer according to the present invention;

[0032] Figure 4 for Figure 3 Enlarged view at point II;

[0033] Figure 5 This is a schematic diagram of a sealing gasket in a hair dryer according to the present invention;

[0034] Figure 6 This is a schematic diagram (with an opening groove) of a sealing gasket in a hair dryer according to the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0036] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0037] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0038] This utility model provides a hair dryer, such as Figures 1 to 4 As shown, the device includes a head unit 100 and a handle 200. The head unit 100 is equipped with a hot air assembly, and the handle 200 is equipped with a switch 21. The switch 21 is electrically connected to the hot air assembly via a wire 22. The head unit 100 is connected to the top of the handle 200. The head unit 100 includes a main housing 101, and the handle 200 includes an outer housing 201 and an inner housing 202. The top of the main housing 101 is connected to the top of the inner housing 202. The outer housing 201 covers the outer periphery of the inner housing 202 and covers the connection between the inner housing 202 and the main housing 101. The main housing 101 has a through hole 102 for inserting the wire 22. A sealing gasket 11 is provided inside the through hole 102. The wire 22 passes through the sealing gasket 11, and the top of the inner housing 202 is inserted into the through hole 102 and abuts against the sealing gasket 11.

[0039] The main technical feature of this application is that by providing a wire-passing hole 102 on the main housing 101 and placing a sealing gasket 11 inside the wire-passing hole 102, the wire 22 passes through the sealing gasket 11 and contacts the top of the inner housing 202, thereby achieving effective sealing of the wire 22. The design of the sealing gasket 11 allows the wire 22 to remain stable under high-speed operation, preventing sealing failure due to vibration or heat. The top of the inner housing 202 is inserted into the wire-passing hole 102 and abuts against the sealing gasket 11, ensuring the sealing and stability of the entire structure.

[0040] Specifically, the through-hole 102 on the main housing 101 provides a stable channel for the wire 22, while the sealing gasket 11 ensures a tight seal between the wire 22 and the through-hole 102. After passing through the sealing gasket 11, the wire 22 contacts the top of the inner housing 202, making the entire structure more compact and stable. The top of the inner housing 202 is inserted into the through-hole 102 and abuts against the sealing gasket 11, further enhancing the sealing effect and preventing seal failure due to movement of the wire 22. Compared with the prior art, this application, by adopting the design of the sealing gasket 11 and the through-hole 102, ensures the sealing of the wire threading position at the connection between the head and the handle, solving the problems of poor sealing performance, poor consistency, and severe deformation existing in traditional hot melt adhesive, soft adhesive, and silicone sealing solutions. The interference fit between the sealing gasket 11 and the wire 22 ensures the reliability of the seal, and the wire 22 will not fail to seal due to vibration or heat during high-speed operation, thereby improving the overall performance and service life of the hair dryer. Specifically, the embodiments of this application solve the air leakage problem at the connection between the head 100 and the handle 200 by setting a sealing structure at this point, thus addressing the issue of air leakage in high-speed hair dryers at high speeds. The design of the wire through hole 102 and the sealing gasket 11 ensures the stability and sealing of the wire 22, preventing seal failure due to wire movement or heat. Simultaneously, the tight fit between the inner shell 202 and the wire through hole 102 further enhances the overall structural stability and sealing effect. Therefore, this application provides a highly efficient, stable, and well-sealed hair dryer design, solving the sealing problems in the prior art and improving the performance and lifespan of the hair dryer. The wire 22 generally includes a neutral wire and a live wire; some may also have a ground wire. The sealing gasket 11 can be used to fix the wire 22 and improve the routing stability of the wire 22.

[0041] Combination Figure 3 and Figure 4In one embodiment, this application further proposes that the handle 200 is provided with an operation button 23 for controlling the working state of the hair dryer, the outer shell 201 is provided with a first through hole 2011, the operation button 23 is located inside the first through hole 2011, and an insulating rubber bracket 24 is provided between the operation button 23 and the outer shell 201 to increase the safe insulation distance between the user holding the handle 200 and the operation button 23. The insulating rubber bracket 24 covers the operation button 23 and is provided with a button cap 241 for the user to drive the operation button 23. The button cap 241 extends out of the first through hole 2011 for the user to press. The operation button 23 is installed and fixed to the inner shell 202. The outer shell 201 and the inner shell 202 clamp the insulating rubber bracket 24, so that the insulating rubber bracket 24 seals the edge of the first through hole 2011. The technical solution proposed in this application solves the problem of poor sealing performance at the handle 200 in the prior art. An insulating rubber bracket 24 is provided between the outer casing 201 and the operation button 23, ensuring a safe insulating distance between the operation button 23 and the outer casing 201. The insulating rubber bracket 24 also covers the operation button 23, providing a good seal. The button cap 241 extends out of the first through hole 2011 for user pressing, facilitating operation. Simultaneously, the outer casing 201 and inner casing 202 clamp the insulating rubber bracket 24, sealing the edge of the first through hole 2011 and further improving sealing performance. The insulating rubber bracket 24 can be made of various materials, such as silicone or rubber; the specific material selection should be determined based on the actual usage environment and requirements. The connection between the button cap 241 and the operation button 23 can be achieved using various methods such as snap-fit ​​connection or threaded connection to ensure the stability and reliability of the button cap 241. Furthermore, the shape and size of the insulating rubber bracket 24 can be adjusted according to the specific handle 200 structure to achieve the best sealing effect. In summary, this application effectively solves the problem of poor sealing performance at the handle 200 in the prior art by setting an insulating rubber bracket 24 and a button cap 241 at the handle 200, thereby enhancing the sealing performance and safety of the hair dryer and having significant practical application value.

[0042] Furthermore, this application proposes that the operation button 23 is fixed to the button circuit board 25, the button circuit board 25 is fixed to the inner housing 202, and an insulating rubber bracket 24 covers the button circuit board 25. In this application, the operation button 23 is fixed to the inner housing 202 by the button circuit board 25, ensuring the stability of the operation button 23's position. The insulating rubber bracket 24 covering the button circuit board 25 provides additional insulation protection and fixation. Through this design, the installation of the operation button 23 is more secure, and the insulation performance is further improved. The implementation of this technical solution includes, but is not limited to: the button circuit board 25 can be fixed to the inner housing 202 by screws, clips, etc., ensuring its firmness and positioning accuracy. The insulating rubber bracket 24 can adopt an integral molding technology to ensure good insulation effect while covering the button circuit board 25. The material of the insulating rubber bracket 24 can be selected as a rubber material with good elasticity and durability to ensure stability and reliability during long-term use. Through the above design, this application solves the problem of fixing and insulating the operation button 23 in a high-speed hair dryer, avoiding safety hazards caused by loose operation button 23 or poor insulation. Compared with the prior art, this application provides a more stable and safer operating button 23 structure by fixing the button circuit board 25 and covering it with an insulating rubber bracket 24, thereby improving the overall performance and safety of the product.

[0043] Furthermore, this application proposes that the button cap 241 can be integrally molded with the insulating rubber bracket 24, and a receiving groove 242 for accommodating the operating button 23 is formed on the side of the button cap 241 facing the operating button 23. The integral molding of the button cap 241 and the insulating rubber bracket 24 in this application means that the button cap 241 and the insulating rubber bracket 24 are formed in one step using the same mold during the manufacturing process, thereby ensuring a tight connection between the button cap 241 and the insulating rubber bracket 24. This integral molding design not only simplifies the manufacturing process but also improves the overall strength and stability of the product. The receiving groove 242 for accommodating the operating button 23 formed on the side of the button cap 241 facing the operating button 23 allows the button cap 241 to better fix the operating button 23 and prevent it from shifting during use. Specifically, the button cap 241 can be integrally molded with the insulating rubber bracket 24 using an injection molding process. The injection molding process ensures a tight connection between the button cap 241 and the insulating rubber bracket 24, avoiding gap problems that may occur in traditional assembly methods, and further improving sealing performance and product consistency. The design of the receiving groove 242 ensures the stability of the operation button 23 when pressed, preventing displacement or loosening of the button during use, thereby improving the product's service life and user experience. Therefore, this application, by integrally molding the button cap 241 with the insulating rubber bracket 24 and forming the receiving groove 242 on the button cap 241 to accommodate the operation button 23, not only simplifies the manufacturing process and improves the overall strength and stability of the product, but also effectively solves the problems of poor button sealing performance and easy button displacement in the prior art, improving the product's sealing performance and service life.

[0044] In another embodiment, this application also proposes that the button cap 241 can be movably connected to the outer casing 201, and the insulating rubber bracket 24 is provided with a button pad 243, which is positioned between the button cap 241 and the operation button 23. In this application, the button cap 241 is movably connected to the outer casing 201, meaning that the button cap 241 can move freely within a certain range. The insulating rubber bracket 24 is provided with a button pad 243, which is located between the button cap 241 and the operation button 23, serving as a buffer and isolation mechanism. The presence of the button pad 243 effectively prevents the button cap 241 from directly contacting the operation button 23, thereby reducing button wear and extending its service life. The movable connection between the button cap 241 and the outer casing 201 can be achieved in various ways, such as using a snap-fit ​​structure, a hinge structure, or a sliding structure. The button pad 243 of the insulating rubber bracket 24 can be fixed between the button cap 241 and the operation button 23 by molding or bonding. The button pad 243 can be made of a soft and elastic rubber material to ensure good cushioning and durability. This design effectively solves the problem of poor sealing performance at the handle 200 in existing technologies, improving the overall sealing performance of the hair dryer and ensuring stable output of high wind speed and high air volume. At the same time, this design also extends the lifespan of the operation button 23 and improves the user experience.

[0045] Furthermore, this application proposes that the operation button 23 and the switch 21 are located on opposite sides of the inner housing 202 to increase the safe insulation distance between them. Background art mentions that existing products mostly use hot melt adhesive for sealing the handle 200, which generally has poor sealing performance and can lead to air leakage after long-term use. Other products use soft adhesive or silicone sealant, but during production line assembly, issues such as wire harness compression or seal deformation can occur, resulting in poor sealing performance. This application solves the sealing and safety problems existing in the prior art by placing the operation button 23 and the switch 21 on opposite sides of the inner housing 202 to increase the safe insulation distance between them. The design of placing the operation button 23 and the switch 21 on opposite sides of the inner housing 202 effectively increases the safe insulation distance between them, avoiding electrical safety hazards caused by excessive proximity. Specifically, the operation button 23 and the switch 21 are respectively arranged on both sides of the inner housing 202, and through reasonable arrangement, the distance between them meets safety standards. Furthermore, the outer shell 201 and the inner shell 202 clamp the insulating rubber bracket 24, which seals the edge of the first through hole 2011, thereby further improving the sealing performance at the handle 200. The technical solution of this application effectively increases the safe insulation distance between the operation button 23 and the switch 21 by placing them on opposite sides of the inner shell 202, solving the problems of poor sealing performance and safety hazards in the prior art. Compared with the prior art, the design of this application not only improves the safety of the product but also enhances the sealing effect at the handle 200, ensuring the stable performance of the high-speed hair dryer at high speeds.

[0046] Furthermore, this application proposes that an air inlet channel 203 is formed within the inner housing 202, and a hot air channel 103 is provided in the head unit 100, with the hot air channel 103 communicating with the air inlet channel 203. A hot air component is located within the hot air channel 103. Background technology shows that existing hair dryers have problems with poor sealing performance at the handle 200, and gaps easily appear during assembly, resulting in poor product consistency and unsatisfactory sealing effects. This sealing problem is particularly prominent in high-speed hair dryers, affecting the overall performance of the hair dryer. The inner housing 202 forms an air inlet channel 203, and the head unit 100 provides a hot air channel 103, which communicates with the air inlet channel 203. A hot air component is located within the hot air channel 103. Specifically, the air inlet channel 203 can be achieved through a specific structural design of the inner housing 202, ensuring that air entering the hair dryer can smoothly pass through the inner housing 202 and enter the hot air channel 103. The hot air channel 103 is located in the head unit 100, and the hot air assembly is installed inside the hot air channel 103. Hot air is generated by heating the incoming air. The connection between the air inlet channel 203 and the hot air channel 103 can be achieved through a reasonable structural design to ensure smooth airflow and improve the working efficiency of the hair dryer. As a preferred embodiment, a sealing structure can be provided at the connection between the air inlet channel 203 and the hot air channel 103 to prevent air leakage and improve the sealing performance of the hair dryer. This application solves the problem of insufficient sealing performance of the internal air duct in existing hair dryers by forming the air inlet channel 203 within the inner housing 202 and connecting the hot air channel 103 to the air inlet channel 203. Therefore, the hot air assembly located within the hot air channel 103 can effectively improve the working efficiency and performance of the hair dryer. Compared with the prior art, the technical solution of this application improves the sealing performance of the hair dryer while ensuring the realization of high wind speed and high air volume, further improving the use effect and user experience of the hair dryer.

[0047] Furthermore, to ensure a tight seal, this application proposes that the sealing gasket 11 has a through hole 111, and the wire 22 is interference-fitted with the sealing gasket 11. In the context of this application, the design of the sealing gasket 11 plays a crucial role in the sealing performance of the hair dryer. The sealing gasket 11 has a through hole 111, and the wire 22 is interference-fitted with the sealing gasket 11. This design ensures that the wire 22 forms a tight fit when passing through the sealing gasket 11, thereby effectively preventing air leakage and ensuring the hair dryer's performance at high wind speeds and high airflow rates. Figure 5 As shown, to facilitate the insertion of the wire 22 into the through hole 111, a guide structure 112 can be provided at one end of the through hole 111 to facilitate the insertion of the wire 22, or as shown in the figure. Figure 6As shown, an opening groove 113 can also be provided between the wall of the through hole 111 and the outer wall of the sealing gasket 11, through which the wire 22 is inserted into the through hole 111. This design of the guide structure 112 or the opening groove 113 facilitates the insertion and fixation of the wire 22, further improving the sealing performance and ease of assembly. Specifically, the guide structure 112 can be designed as a cone or a flared shape, so that the wire 22 can be guided to the correct position when inserted, reducing insertion resistance and improving installation efficiency; while the opening groove 113 can be a slit that matches the size of the wire 22, allowing the wire 22 to be easily inserted, and forming a tight seal due to the compression of the main housing after insertion. The design of the opening groove 113 allows the wire 22 to be inserted into the through hole 111 from the side. This method is particularly suitable for situations where the wire 22 cannot be directly inserted from one end of the hole, and the sealing gasket can be installed later, that is, after the wire is soldered, the sealing gasket is installed on the wire, which provides greater assembly freedom. This design solves the air leakage problem caused by poor sealing in existing technologies, especially in high-speed hair dryer applications, ensuring product consistency and reliability. Compared with existing hot melt adhesive, soft adhesive, or silicone sealing solutions, this application's solution significantly improves the sealing performance of the hair dryer handle 200 during long-term use, avoiding air leakage caused by improper insertion of the wire 22. This ensures stable high-speed and high-volume performance of the hair dryer, thereby significantly improving the overall performance and user experience of the hair dryer.

[0048] Furthermore, this application also proposes that the outer peripheral side of the sealing gasket 11 is provided with a side sealing rib 114 that is interference-fitted with the wall of the through hole 102. In this application, the outer peripheral side of the sealing gasket 11 is designed with a side sealing rib 114, which, through interference fit with the wall of the through hole 102, ensures the stability and sealing effect of the sealing gasket 11 within the through hole 102. With this design, air leakage can be effectively prevented when the wire 22 passes through the sealing gasket 11, improving the sealing performance of the blower. The side sealing rib 114 of the sealing gasket 11 can be implemented in various ways. For example, multiple annular protrusions can be designed on the outer peripheral side of the sealing gasket 11. These protrusions fit tightly with the wall of the through hole 102 during installation, forming a good sealing effect. Alternatively, a continuous ring of protrusions can be designed on the outer peripheral side of the sealing gasket 11 to ensure that the sealing gasket 11 is in uniform contact with the wall of the through hole 102 throughout its entire periphery. In addition, flexible materials such as silicone or rubber can be used to make the sealing gasket 11, allowing it to adapt to the shape changes of the through hole 102 during installation, further improving the sealing effect. This application effectively solves the problem of poor sealing performance in the prior art by providing side sealing ribs 114 on the outer periphery of the sealing gasket 11. Compared with the prior art, the design of this application can better prevent air leakage, improving the overall performance and service life of the hair dryer. Therefore, this application provides a more reliable and efficient sealing solution, suitable for high-speed hair dryers and other equipment requiring high sealing performance.

[0049] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A hair dryer comprising a head and a handle, the head being provided with a hot air assembly, the handle being provided with a switch, the switch being electrically connected to the hot air assembly through a wire, the head being connected to the top of the handle, the head comprising a main casing, the handle comprising an outer casing and an inner casing, characterized in that, The main shell is connected with the top of the inner shell, the outer shell covers the outer periphery of the inner shell and covers the connection between the inner shell and the main shell, the main shell is provided with a wire insertion through hole, a sealing gasket is arranged in the wire insertion through hole, the wire passes through the sealing gasket, and the top end of the inner shell is inserted into the wire insertion through hole and abuts against the sealing gasket.

2. The hair dryer of claim 1, wherein The handle is provided with an operation button for controlling the working state of the hair dryer, the outer shell is provided with a first through hole, the operation button is arranged on the inner side of the first through hole, an insulating rubber support is arranged between the operation button and the outer shell to increase the safe insulation distance between the user holding the handle and the operation button, the insulating rubber support covers the operation button, the insulating rubber support is provided with a button cap for the user to drive the operation button, the button cap protrudes out of the first through hole for the user to press, the operation button is fixedly installed on the inner shell, the outer shell and the inner shell clamp the insulating rubber support, and the insulating rubber support seals the edge of the first through hole.

3. The hair dryer of claim 2, wherein, The operation button is fixed on the button circuit board, the button circuit board is fixed on the inner shell, and the insulating rubber support covers the button circuit board.

4. The hair dryer of claim 2, wherein, The button cap and the insulating rubber support are integrally formed, and a containing groove for containing the operation button is formed on the side of the button cap facing the operation button.

5. The hair dryer of claim 2, wherein, The button cap is movably connected to the outer shell, and the insulating rubber support is provided with a button pad which is arranged between the button cap and the operation button.

6. The hair dryer of claim 2, wherein, The operation button and the switch are respectively arranged on the opposite sides of the inner shell, so as to increase the safe insulation distance therebetween.

7. The hair dryer of claim 1, wherein An air inlet channel is formed in the inner shell, the handpiece is provided with a hot air channel, the hot air channel is communicated with the air inlet channel, and the hot air assembly is arranged in the hot air channel.

8. The hair dryer of claim 1, wherein, The sealing gasket is provided with a through hole, and the wire is in interference fit with the sealing gasket.

9. The hair dryer of claim 8, wherein, One end of the through hole is provided with a guide structure for facilitating the insertion of the wire; or, an opening groove is arranged between the hole wall of the through hole and the outer side wall of the sealing gasket, and the wire is clamped into the through hole through the opening groove.

10. The hair dryer of claim 1, wherein, The outer peripheral side of the sealing gasket is provided with a side sealing rib in interference fit with the hole wall of the wire insertion through hole.

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