Hair drier

Abstract

The utility model discloses a hair drier, which belongs to the field of life electric appliances, solves the problem of strong current isolation at a key and a switch, and adopts the technical scheme that a handle comprises a shell, a first through hole and a second through hole are formed in the shell, a slide switch is arranged on the inner side of the first through hole, and an insulating push plate assembly is arranged on the slide switch; the insulation push plate assembly covers the sliding switch to increase the safe insulation distance between the handle and the sliding switch when the user holds the handle, the insulation push plate assembly extends out of the first through hole to be pushed by the user, and the function key is arranged on the inner side of the second through hole. An insulating key support is arranged on the function key to increase the safe insulating distance between the user and the function key when the user holds the handle, the insulating key support covers the function key, the insulating key support is provided with a key cap for the user to operate the function key, and the key cap extends out of the second through hole to be pressed by the user. The utility model is mainly used for improving the overall safety performance, and ensuring the reliability and safety of functions such as temperature detection and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical equipment, especially a hair dryer. BACKGROUND

[0002] Hair dryer is a necessity in people's daily life, usually used in relatively humid environment such as shower room, so the safety performance requirement is higher, especially the electrical insulation performance. Because the hair dryer is small in size, the circuit design usually does not isolate the strong and weak electricity, which means that all the strong and weak electricity metal components in the circuit are live, and it is necessary to ensure that there is enough safety distance.

[0003] At present, the hair dryer on the market mainly focuses on the safety insulation of the circuit board and the strong electricity circuit, but does not provide enough protective safety margin for the strong electricity isolation of the keys and switches on the circuit. For example, the push-pull key of some products is buckled on the push plate, and the corresponding push plate position is provided with a hole for buckling the push-pull key. Because the push plate is pushed up and down, the safety margin is often insufficient when moving to the limit position, and there is a risk of electric leakage. In addition, some products use air temperature calibration, which uses air temperature detection at the air inlet to accurately feedback and control the air outlet temperature of the whole machine to ensure more accurate product air outlet temperature. However, the air inlet NTC in this scheme is a weak electric signal connected to the key plate, which often ignores the insufficient safety distance between the accessory and the detachable air inlet metal mesh, thus posing a risk of safety regulations.

[0004] These problems lead to potential safety hazards in the use of existing hair dryers, especially when used in humid environments, which may increase the risk of electric shock. In addition, due to insufficient safety insulation distance, it may affect the long-term reliability and service life of the product.

[0005] In view of the above problems, the prior art needs to be improved. UTILITY MODEL CONTENTS

[0006] The purpose of the utility model is to provide a hair dryer which can effectively solve the problem of strong electricity isolation at the key and switch, improve the overall safety performance, and at the same time ensure the reliability and safety of temperature detection and other functions, has the advantages of improving product safety performance, increasing insulation distance and reducing the risk of electric shock.

[0007] 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 connected to the top of the handle, the handle having a sliding switch for controlling the operation of the hair dryer and a function button for switching the hair dryer's functions, the handle including a housing, the housing having a first through hole and a second through hole, the sliding switch being located inside the first through hole, the sliding switch having an insulating push plate assembly, the insulating push plate assembly covering the sliding switch to increase the safe insulation distance between the user and the sliding switch when holding the handle, the insulating push plate assembly extending out of the first through hole for the user to push, the function button being located inside the second through hole, the function button having an insulating button bracket to increase the safe insulation distance between the user and the function button when holding the handle, the insulating button bracket covering the function button, the insulating button bracket having a button cap for the user to operate the function button, the button cap extending out of the second through hole for the user to press.

[0008] After adopting the above technical solution, this utility model has the following advantages: by setting an insulating push plate assembly on the slide switch and an insulating button bracket on the function button, the safe insulation distance between the user and the electrical components when holding the handle is increased. At the same time, the design of the air inlet channel separates the slide switch and the function button, further increasing the safe insulation distance. This effectively solves the problem of strong current isolation at the button and switch, and has the advantages of improving product safety performance, increasing insulation distance, and reducing the risk of electric shock.

[0009] Furthermore, the insulating push plate assembly includes a push plate slidably connected to the housing and a push-pull button mounted on the push plate, with the push-pull button extending out of the first through hole. By adopting the aforementioned technical solution, and through the design of mounting a push-pull button on the push plate and having the push-pull button extend out of the first through hole, the problem of insufficient safe insulation distance between the push-pull button and the sliding switch in the prior art is effectively solved. Compared with the prior art, the design of this application can significantly improve the safety performance of the hair dryer, reduce the risk of leakage, and enhance user safety.

[0010] Furthermore, a first positioning groove is provided on the side of the push plate opposite to the first through hole, and the sliding head of the slide switch is inserted into the positioning groove for positioning. By adopting the aforementioned technical solution, and by providing a first positioning groove on the side of the push plate opposite to the first through hole, and by inserting the sliding head of the slide switch into the positioning groove for positioning, the technical solution of this application can effectively improve the positioning accuracy and stability of the slide switch, reduce the risk of displacement and loosening during use, and thus improve the safety and reliability of the hair dryer. Compared with the prior art, the technical solution of this application provides a safer and more reliable slide switch positioning method, solving the problem of unstable slide switch positioning in the prior art.

[0011] Furthermore, a second positioning groove is provided on the side of the push plate facing the first through hole, and the push-pull button is fixedly installed in the second positioning groove. By adopting the aforementioned technical solution, the second positioning groove on the side of the push plate facing the first through hole enhances the connection strength between the push-pull button and the push plate, preventing the push-pull button from loosening or falling off during use. This design not only improves the safety of the hair dryer but also enhances the user experience. Compared to existing technologies, the technical solution of this application, by adding a second positioning groove to the push plate, makes the installation of the push-pull button more stable, thereby effectively solving the problem of the push-pull button easily loosening or falling off in existing technologies.

[0012] Furthermore, the projection of the push plate onto the housing remains covering the first through hole. By employing the aforementioned technical solution, the safety hazard caused by the exposed sliding switch in the prior art is resolved, further improving the safety performance of the hair dryer. Compared with the prior art, the design of this application pays more attention to details and the safety requirements in actual use, providing a more reliable and safer hair dryer structure.

[0013] Furthermore, the insulated button bracket is provided with a receiving groove for accommodating the function button. Pressing the button cap causes the bottom wall of the receiving groove to move, thereby pressing the function button. By adopting the aforementioned technical solution, and by providing a receiving groove for accommodating the function button on the insulated button bracket, and by causing the bottom wall of the receiving groove to move when the button cap is pressed, the problem of insufficient high-voltage isolation at the button and switch in the prior art is solved, thereby improving the safety performance of the hair dryer, especially its safety in humid environments.

[0014] Furthermore, the handle is equipped with an air intake channel, with the slide switch and function buttons separated on opposite sides of the air intake channel to increase the safe insulation distance between them. By employing the aforementioned technical solution, and by setting up an air intake channel inside the handle and separating the slide switch and function buttons, the safe insulation distance between them can be effectively increased, avoiding the risk of electric leakage due to humid environments and improving the safety performance of the hair dryer. This design not only solves the problem of insufficient high-voltage isolation at the buttons and switches in existing technologies, but also ensures the safety and reliability of the product through a reasonable internal structural design.

[0015] Furthermore, the function buttons are located on a button circuit board, which is fixed to the side wall of the air inlet channel. An insulated button bracket covers the button circuit board. The entrance to the air inlet channel is located on the side wall at the bottom of the handle. A temperature sensor for detecting the air intake temperature is installed inside the air inlet channel. The temperature sensor is electrically connected to the button circuit board via a lead wire, which is routed through the air inlet channel. By adopting the aforementioned technical solution and optimizing the arrangement of the function buttons and the temperature sensor, the electrical insulation performance and safety of the hair dryer are improved. Compared with the prior art, the design of this application effectively solves the problem of strong current isolation at the buttons and switches, avoiding the risk of leakage. At the same time, by arranging the temperature sensor in the air inlet channel and rationally routing the lead wire, the accuracy and stability of temperature detection are ensured, thereby improving the overall performance of the hair dryer and user safety.

[0016] Furthermore, the inner wall of the air inlet channel is equipped with a wire clamp to guide the lead wire, and the bottom end of the lead wire is positioned by the wire clamp to fix the detection probe of the temperature sensor. Using the aforementioned technical solution, the inner wall of the air inlet channel is equipped with a wire clamp to guide the lead wire and fix its bottom end, thereby ensuring the stable positioning of the temperature sensor's detection probe. This design not only improves the detection accuracy and stability of the temperature sensor but also enhances the safety performance of the hair dryer, especially when used in humid environments, effectively reducing the risk of electric leakage.

[0017] Furthermore, the air inlet channel is equipped with a metal filter and an insulating baffle that isolates the metal filter from the temperature sensor and its leads. The bottom of the insulating baffle is lower than the detection probe of the temperature sensor. By employing the aforementioned technical solution, the metal filter and insulating baffle effectively isolate the metal components and circuit elements within the air inlet channel, avoiding potential electrical safety hazards. This design not only improves the safety performance of the hair dryer but also extends its service life. Compared to existing technologies, this design provides better electrical safety isolation, especially when used in humid environments, better protecting user safety. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of a hair dryer according to the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point I in the middle;

[0021] Figure 3 This is a schematic diagram of the interior of the handle of a hair dryer according to the present invention;

[0022] Figure 4This is a schematic diagram showing the separation of the sliding switch and function buttons from the handle of a hair dryer according to this utility model. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] To improve the safety performance of hair dryers, especially their electrical insulation performance, such as... Figures 1 to 4As shown, this utility model provides a hair dryer, including a head 100 and a handle 200. The head 100 is connected to the top of the handle 200. The handle 200 is provided with a sliding switch 21 for controlling the operation of the hair dryer and a function button 22 for switching the functions of the hair dryer. The handle 200 includes a housing 201, on which a first through hole 2011 and a second through hole 2012 are provided. A slide switch 21 is located inside the first through hole 2011. An insulating push plate assembly 23 is provided on the slide switch 21. The insulating push plate assembly 23 covers the slide switch 21 to increase the safe insulation distance between the user holding the handle 200 and the slide switch 21. The insulating push plate assembly 23 extends out of the first through hole 2011 for the user to push. A function button 22 is located inside the second through hole 2012. An insulating button bracket 24 is provided on the function button 22 to increase the safe insulation distance between the user holding the handle 200 and the function button 22. The insulating button bracket 24 covers the function button 22. The insulating button bracket 24 is provided with a button cap 25 for the user to operate the function button 22. The button cap 25 extends out of the second through hole 2012 for the user to press.

[0027] The hair dryer's design addresses safety hazards during use in humid environments. By incorporating an insulating push plate assembly 23 and an insulating button bracket 24 on the handle 200, the safe insulation distance between the user holding the handle 200 and the slide switch 21 and function button 22 is effectively increased, preventing the risk of electric leakage caused by a damp handle 200. Furthermore, the design of the insulating push plate assembly 23 and the insulating button bracket 24 allows them to cover the slide switch 21 and function button 22, thus providing better safety during user operation.

[0028] In one embodiment, the insulating push plate assembly 23 includes a push plate 231 slidably connected to the housing 201 and a push-pull button 232 mounted on the push plate 231. The push-pull button 232 extends out of the first through hole 2011 and slides within the first through hole 2011. This design ensures stability of the push plate 231 and push-pull button 232 during sliding, avoiding safety hazards caused by the movement of the push plate 231. The design of the push plate 231 and push-pull button 232 effectively increases the safe insulation distance when the user holds the handle 200. The push plate 231, slidably connected to the housing 201, ensures that it always covers the first through hole 2011 during movement, thus preventing the user from directly contacting the internal slide switch 21. The push-pull button 232, mounted on the push plate 231, allows the user to operate the slide switch 21 via the push-pull button 232, and its extension into the first through hole 2011 further facilitates user operation. The push plate 231 can be made of various materials, such as plastics and insulating composite materials, to ensure its insulation performance and mechanical strength. In the design of the push plate 231, structural features such as reinforcing ribs can be added to improve its rigidity and durability. The design of the push-pull button 232 can also be diversified, for example, using different shapes and sizes to adapt to the operating habits and needs of different users. This invention, by installing the push-pull button 232 on the push plate 231 and making the push-pull button 232 extend out of the first through hole 2011, effectively solves the problem of insufficient safe insulation distance between the push-pull button 232 and the sliding switch 21 in the prior art. Compared with the prior art, the design of this invention can significantly improve the safety performance of the hair dryer, reduce the risk of leakage, and enhance user safety.

[0029] Furthermore, this utility model proposes that a first positioning groove 2311 be provided on the side of the push plate 231 opposite to the first through hole 2011, and the sliding head 211 of the sliding switch 21 is inserted into the first positioning groove 2311 for positioning. This design ensures that the sliding switch 21 is positioned more accurately and stably on the push plate 231, preventing the sliding switch 21 from shifting or loosening during use, thereby improving the safety and stability of the hair dryer. The first positioning groove 2311 can be implemented in various forms, such as a rectangular groove, a circular groove, etc., and the specific form can be selected according to actual needs. The sliding head 211 can be fixed in the first positioning groove 2311 by means of snap-fit, screw, interference fit, etc., thereby ensuring a tight fit between the sliding head and the positioning groove. Furthermore, the depth and width of the first positioning groove 2311 can be adjusted according to the size of the sliding head 211 to ensure that the sliding head 211 can be firmly inserted into the first positioning groove 2311. Compared with the prior art, the technical solution of this utility model provides a safer and more reliable positioning and transmission method for the sliding switch 21, solving the problems of unstable positioning and unreliable transmission of the sliding switch 21 in the prior art.

[0030] Furthermore, this utility model also proposes that the push plate 231 has a second positioning groove 2312 on the side facing the first through hole 2011, and the push-pull key 232 is fixedly installed in the second positioning groove 2312. This design of the push plate 231 ensures the firm installation of the push-pull key 232, thereby preventing the push-pull key 232 from loosening or falling off during use. The push-pull key 232 can be fixed by various methods such as snap-fit ​​or screw fixing to ensure its stability and safety. The second positioning groove 2312 on the side of the push plate 231 facing the first through hole 2011, by installing the push-pull key 232 in the second positioning groove 2312, can enhance the connection strength between the push-pull key 232 and the push plate 231, preventing the push-pull key 232 from loosening or falling off during use. This design not only improves the safety of using the hair dryer, but also enhances the user experience. Compared with the prior art, the technical solution of this utility model makes the installation of the push-pull key 232 more stable by adding a second positioning groove 2312 to the push plate 231, thereby effectively solving the problem that the push-pull key 232 is easy to loosen or fall off in the prior art.

[0031] Furthermore, this invention proposes that the projection of the push plate 231 onto the housing 201 maintains coverage of the first through hole 2011. This design ensures that the slide switch 21 is not exposed to the external environment during user operation, thereby increasing safety. Specifically, the size and position of the push plate 231 are precisely designed to ensure complete coverage of the first through hole 2011 at any position. This effectively prevents external moisture or other impurities from entering the interior of the slide switch 21, avoiding potential short circuits and leakage risks. This design further improves the safety of the hair dryer in humid environments. The coverage of the push plate 231 not only provides physical protection but also enhances electrical insulation performance. As a preferred embodiment, the push plate 231 can be made of a high-strength and heat-resistant insulating material to ensure its stability and reliability during long-term use. Thus, this invention, through the design of the push plate 231 maintaining coverage of the first through hole 2011 on the housing 201, solves the safety hazard problem caused by the exposure of the slide switch 21 in the prior art, further improving the safety performance of the hair dryer. Compared with existing technologies, the design of this utility model pays more attention to details and safety requirements in actual use, providing a more reliable and safer hair dryer structure.

[0032] Furthermore, this utility model also proposes that the insulating button bracket 24 is provided with a receiving groove 241 for accommodating the function button 22, and pressing the button cap 25 causes the bottom wall of the receiving groove 241 to move to press the function button 22. The handle 200 is provided with an air inlet channel 202, and the slide switch 21 and the function button 22 are separated on opposite sides of the air inlet channel 202 to increase the safe insulation distance between them. The function button 22 is located on the button circuit board 26, which is fixed to the side wall of the air inlet channel 202, and the insulating button bracket 24 covers the button circuit board 26. The inlet of the air inlet channel 202 is located on the side wall of the bottom of the handle 200, and a temperature sensor 27 for detecting the air inlet temperature is provided inside the air inlet channel 202. The temperature sensor 27 is electrically connected to the button circuit board 26 via a lead wire 271, which is wired through the air inlet channel 202. The inner wall of the air inlet duct 202 is provided with a wire clip 203 to guide the lead wire 271. The bottom end of the lead wire 271 is positioned by the wire clip 203, thereby positioning the detection probe 272 of the temperature sensor 27. At the entrance of the air inlet duct 202, there is a metal filter 28 and an insulating baffle 204 that isolates the metal filter 28 from the temperature sensor 27 and its lead wire 271. The bottom end of the insulating baffle 204 is lower than the detection probe 272 of the temperature sensor 27.

[0033] Specifically, by providing a receiving groove 241 for accommodating the function button 22 on the insulating button bracket 24, pressing the button cap 25 causes the bottom wall of the receiving groove 241 to move, thereby pressing the function button 22. This design aims to increase the safe insulation distance between the user and the function button 22 when holding the handle 200, avoiding the risk of leakage due to humid environments or other reasons. Furthermore, the insulating button bracket 24 can be made of high-strength insulating material to ensure its reliability and safety during long-term use. The design of the receiving groove 241 should take into account the button's travel and feel to ensure user comfort and accuracy. The shape and material of the button cap 25 should also be carefully designed to improve the user experience. Therefore, this invention, by providing a receiving groove 241 for accommodating the function button 22 on the insulating button bracket 24, and causing the bottom wall of the receiving groove 241 to move when the button cap 25 is pressed, solves the problem of insufficient high-voltage isolation at the function button in the prior art, improving the safety performance of the hair dryer, especially its safety in humid environments.

[0034] Specifically, this utility model also proposes that the handle 200 is provided with an air inlet channel 202, with the slide switch 21 and function button 22 separated on opposite sides of the air inlet channel 202 to increase the safe insulation distance between them. The handle 200 has an air inlet channel 202 inside, with the slide switch 21 and function button 22 located on opposite sides of the air inlet channel 202. This design effectively increases the safe insulation distance between the slide switch 21 and function button 22. In this way, the electrical insulation performance of the hair dryer can be guaranteed within a limited space, avoiding the risk of leakage due to humid environments. Specifically, the air inlet channel 202 allows airflow to enter from the bottom of the handle 200, with the slide switch 21 and function button 22 located on opposite sides of the air inlet channel 202, separated from each other. This ensures that the slide switch 21 and function button 22 will not directly contact each other during use, thereby improving safety. The design of the air inlet channel 202 can also effectively guide cool air into the hair dryer, helping with heat dissipation and further improving the lifespan and safety of the hair dryer. Therefore, by setting an air intake channel 202 inside the handle 200 and separating the sliding switch 21 and the function button 22, the safe insulation distance between them can be effectively increased, avoiding the risk of electric leakage caused by humid environments and improving the safety performance of the hair dryer. This design not only solves the problem of insufficient high-voltage isolation at the buttons and switches in the prior art, but also ensures the safety and reliability of the product through a reasonable internal structure design.

[0035] Specifically, this utility model also proposes that the function button 22 is located on the button circuit board 26, the button circuit board 26 is fixed to the side wall of the air inlet channel 202, the insulating button bracket 24 covers the button circuit board 26, the entrance of the air inlet channel 202 is located on the side wall of the bottom of the handle 200, and a temperature sensor 27 for detecting the air inlet temperature is provided in the air inlet channel 202. The temperature sensor 27 is electrically connected to the button circuit board 26 through the lead wire 271, and the lead wire 271 is wired through the air inlet channel 202.

[0036] The technical solution of this utility model arranges the function buttons 22 on the button circuit board 26 and fixes them to the side wall of the air inlet channel 202. An insulating button bracket 24 covers the button circuit board 26, ensuring the insulation effect between the button circuit board 26 and the external environment. The inlet of the air inlet channel 202 is located on the side wall of the bottom of the handle 200. A temperature sensor 27 is installed inside the air inlet channel 202 and electrically connected to the button circuit board 26 via a lead wire 271, with wiring within the air inlet channel 202. This design allows the temperature sensor 27 to accurately detect the air inlet temperature and transmit the signal to the button circuit board 26 via the lead wire 271. Furthermore, the lead wire 271 of the temperature sensor 27 is routed through the air inlet channel 202, effectively avoiding interference between the lead wire 271 and other components. The detection probe of the temperature sensor 27 is positioned within the air inlet channel 202 via the lead wire 271, ensuring the accuracy and stability of temperature detection.

[0037] Specifically, this utility model also proposes that the inner wall of the air inlet channel 202 is provided with a wire clamp 203 to guide the lead wire 271. The bottom end of the lead wire 271 is positioned by the wire clamp 203, thereby positioning the detection probe of the temperature sensor 27. The technical understanding of this solution is that by setting the wire clamp 203 on the inner wall of the air inlet channel 202 to guide the lead wire 271 and fixing the bottom end of the lead wire 271 by the wire clamp 203, the detection probe of the temperature sensor 27 is stably positioned. This design can effectively prevent the lead wire 271 from loosening or shifting within the air inlet channel 202, ensuring the detection accuracy and stability of the temperature sensor 27. Specifically, the wire clamp 203 can be implemented in various ways. For example, the wire clamp 203 can be integrally molded and integrated with the inner wall of the air inlet channel 202, or it can be installed on the inner wall of the air inlet channel 202 by adhesive bonding or screw fixing. The shape and size of the wire clamp 203 can be designed according to the specifications of the lead wire 271 to ensure that the lead wire 271 can be securely fixed in the wire clamp 203. Furthermore, the material of the wire clamp 203 can be selected as a material with good insulation properties to prevent the lead wire 271 from contacting other metal parts inside the air inlet channel 202, thereby improving overall safety. Thus, the inner wall of the air inlet channel 202 is provided with a wire clamp 203, which guides the lead wire 271 and fixes its bottom end, thereby ensuring the stable positioning of the temperature sensor 27's detection probe. This design not only improves the detection accuracy and stability of the temperature sensor 27 but also enhances the safety performance of the hair dryer, especially when used in humid environments, effectively reducing the risk of electric leakage.

[0038] Specifically, this utility model also proposes that a metal filter 28 and an insulating baffle 204 be provided at the inlet of the air inlet channel 202 to isolate the metal filter 28 from the temperature sensor 27 and its lead wire 271. The bottom end of the insulating baffle 204 is lower than the detection probe 272 of the temperature sensor 27. The metal filter 28 at the inlet of the air inlet channel 202 is used to filter impurities and particulate matter in the air entering the blower, protecting the internal components. To avoid electrical contact between the metal filter 28 and the temperature sensor 27 and its lead wire 271, an insulating baffle 204 is also provided inside the air inlet channel 202. The design of the insulating baffle 204 ensures a safe distance between the metal filter 28 and the temperature sensor 27 and its lead wire 271, thereby improving the safety performance of the blower. The bottom end of the insulating baffle 204 is lower than the detection probe of the temperature sensor 27, further ensuring that the detection probe is not affected by external interference during operation. By setting a metal filter 28 and an insulating baffle 204, the metal parts and circuit components within the air inlet channel 202 can be effectively isolated, avoiding potential electrical safety hazards. This design not only improves the safety performance of the hair dryer but also extends its service life. Compared with existing technologies, this design provides better electrical safety isolation, especially when used in humid environments, better protecting user safety. A metal filter 28 is also provided at the inlet of the air inlet channel 202. The metal filter 28 is isolated from the temperature sensor 27 and its lead 271 by the insulating baffle 204. The bottom end of the insulating baffle 204 is lower than the detection probe of the temperature sensor 27, further increasing the insulation effect and preventing electrical interference between the metal filter 28 and the temperature sensor 27. Thus, the function button 22 is located on the button circuit board 26 and covered by an insulating button bracket 24. The inlet of the air inlet channel 202 is located on the side wall at the bottom of the handle 200. The temperature sensor 27 is disposed within the air inlet channel 202 and is electrically connected to the button circuit board 26 via the lead 271. The lead wire 271 of the temperature sensor 27 is wired through the air inlet channel 202, which ensures the accurate positioning of the detection probe of the temperature sensor 27. A metal filter screen 28 is provided at the entrance of the air inlet channel 202 and is isolated by an insulating baffle 204, which further improves the insulation effect and safety of the entire system.

[0039] In summary, the technical solution of this utility model solves the problems existing in the background art mentioned above. Through the above design, the hair dryer of this utility model provides multiple safety guarantees in its structure, especially in terms of electrical insulation performance. The insulation design of the sliding switch 21 and function button 22, the layout of the air inlet channel 202, and the safety isolation measures of the temperature sensor 27 all effectively improve the safety of the hair dryer in humid environments. Therefore, the hair dryer of this utility model not only meets daily use needs but also achieves significant results in improving safety performance.

[0040] 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 connected to the top of the handle, the handle being provided with a slide switch for controlling the operation of the hair dryer and function buttons for switching the functions of the hair dryer, characterized in that, The handle comprises a shell, a first through hole and a second through hole are arranged on the shell, a sliding switch is arranged inside the first through hole, an insulating push plate assembly is arranged on the sliding switch, the insulating push plate assembly covers the sliding switch to increase the safe insulation distance between the user holding the handle and the sliding switch, the insulating push plate assembly extends out of the first through hole for the user to push, a function button is arranged inside the second through hole, an insulating button support is arranged on the function button to increase the safe insulation distance between the user holding the handle and the function button, the insulating button support covers the function button, the insulating button support is provided with a button cap for the user to operate the function button, and the button cap extends out of the second through hole for the user to press.

2. The hair dryer of claim 1, wherein The insulating push plate assembly comprises a push plate slidingly connected to the shell and a push-pull key mounted on the push plate, and the push-pull key extends out of the first through hole.

3. The hair dryer of claim 2, wherein, The side of the push plate opposite to the first through hole is provided with a first positioning groove, and the sliding head of the sliding switch is inserted into the first positioning groove for positioning.

4. The hair dryer of claim 2, wherein, The side of the push plate facing the first through hole is provided with a second positioning groove, and the push-pull key is mounted in the second positioning groove for fixation.

5. The hair dryer of claim 2, wherein, The projection of the push plate on the shell covers the first through hole.

6. The hair dryer of claim 1, wherein, The insulating button support is provided with a containing groove containing the function button, and pressing the button cap drives the bottom wall of the containing groove to press the function button.

7. The hair dryer of claim 1, wherein The handle is provided with an air inlet channel, and the sliding switch and the function button are separated on opposite sides of the air inlet channel to increase the safe insulation distance therebetween.

8. The hair dryer of claim 7, wherein, The function button is arranged on a button circuit board, the button circuit board is fixed to the side wall of the air inlet channel, the insulating button support covers the button circuit board, the inlet of the air inlet channel is arranged on the side wall of the bottom of the handle, the air inlet channel is provided with a temperature sensor for detecting the temperature of the air inlet, the temperature sensor is electrically connected to the button circuit board through a lead wire, and the lead wire is routed through the air inlet channel.

9. The hair dryer of claim 8, wherein, The inner side wall of the air inlet channel is provided with a wire clamping buckle for guiding the routing of the lead wire, and the bottom end of the lead wire is positioned through the wire clamping buckle to position the detection probe of the temperature sensor.

10. The hair dryer of claim 8, wherein, The inlet of the air inlet channel is provided with a metal filter screen and an insulating stop rib for isolating the metal filter screen from the temperature sensor and the lead wire thereof, and the bottom end of the insulating stop rib is lower than the detection probe of the temperature sensor.

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