Hair dryer

Abstract

The utility model discloses a hair drier which comprises a shell, a circuit device and a knob mechanism, the shell comprises a holding part and an air outlet part located at one end of the holding part, the air outlet part is provided with an air outlet, and the holding part is provided with a holding area; the circuit device is arranged in the shell; the knob mechanism comprises a switch element and a rotating ring, the switch element is arranged in the holding portion and electrically connected with the circuit device, the rotating ring is rotatably arranged on the holding portion in a sleeving mode and located on the side, away from the air outlet portion, of the holding area, and the rotating ring is matched with the switch element. The technical scheme of the utility model is convenient for users to use.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a hair dryer. Background Technology

[0002] Hair dryers typically have a fan and heating element to provide both cool and hot air. To accommodate various usage scenarios, some hair dryers include a speed control, a temperature control, and a power button. However, these multiple buttons are often grouped together, which can lead to accidental operation due to their small size, causing inconvenience for users. Utility Model Content

[0003] The main purpose of this utility model is to provide a hair dryer that is convenient for users.

[0004] To achieve the above objectives, the hair dryer proposed in this utility model includes:

[0005] The housing includes a grip portion and an air outlet portion located at one end of the grip portion, the air outlet portion having the air outlet, and the grip portion having a gripping area;

[0006] Circuitry, disposed within the housing; and

[0007] The knob mechanism includes a switch element and a rotating ring. The switch element is disposed within the grip portion and electrically connected to the circuit device. The rotating ring is rotatably fitted onto the grip portion and located on the side of the grip area away from the air outlet. The rotating ring cooperates with the switch element.

[0008] Optionally, the rotating ring is spaced apart from the end face of the gripping portion.

[0009] Optionally, the gripping part is provided with a mounting ring groove, and the rotating ring is located in the mounting ring groove.

[0010] Optionally, the gripping part includes an inner shell, an outer cylinder, and an end cap. The inner shell is disposed inside the outer cylinder and has a mounting part extending from the end of the outer cylinder away from the air outlet. The end cap is disposed at the end of the mounting part away from the air outlet. The rotating ring is rotatably sleeved on the mounting part and located between the outer cylinder and the end cap.

[0011] Optionally, the inner wall of the rotating ring is provided with a plurality of slots, the plurality of slots being distributed at intervals along the circumference of the rotating ring, and the gripping part is provided with an elastic element, the elastic element having a protrusion that engages with the slot.

[0012] Optionally, the circuit device includes a main control board, the main control board is provided with a power supply circuit, and the switching element is electrically connected to the power supply circuit.

[0013] Optionally, the switching element is a micro switch, a toggle switch, or a Hall switch.

[0014] Optionally, the switching element is a toggle switch, the inner side of the rotating ring is provided with a toggle groove, the lever of the toggle switch is located in the toggle groove, and in the circumferential direction of the grip, the width of the toggle groove is greater than the width of the lever of the toggle switch.

[0015] Optionally, the air outlet is provided with an air duct and an air inlet, the air duct is connected between the air inlet and the air outlet, and the blower includes a fan assembly and a heating assembly, both of which are located in the air duct and are electrically connected to the circuit device.

[0016] Optionally, the circuit device includes a main control board, on which a temperature regulation circuit is provided, and the heating component and the switching element are both electrically connected to the temperature regulation circuit;

[0017] Optionally, the circuit device includes a main control board, the main control board is provided with a wind speed regulation circuit, and the fan assembly and the switching element are both electrically connected to the wind speed regulation circuit;

[0018] Optionally, the hair dryer includes multiple knob mechanisms, and the circuit device includes a main control board. The main control board is provided with a temperature adjustment circuit and a fan speed adjustment circuit. The switching element of one of the knob mechanisms and the heating element are connected to the temperature adjustment circuit; the switching element of the other knob mechanism and the fan assembly are connected to the fan speed adjustment circuit.

[0019] This invention features a knob mechanism on the handle, with the rotating ring positioned on the grip area away from the air outlet. This ensures the rotating ring is visible when the user holds the hair dryer, preventing it from being covered by the hand and facilitating operation. Furthermore, even if other buttons are located in the grip area or near the air outlet, this design avoids clustering multiple buttons in one place, reducing button density and the risk of accidental operation. The larger rotating ring also allows for blind operation, enhancing user convenience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the hair dryer of this utility model;

[0022] Figure 2 for Figure 1 Exploded view of a medium-sized hair dryer;

[0023] Figure 3 for Figure 2 Schematic diagram of the rotating ring structure;

[0024] Figure 4 for Figure 1 Cross-sectional view of a medium-sized hair dryer;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0026] Explanation of icon numbers:

[0027] 10. Housing; 11. Grip part; 111. Grip area; 12. Air outlet; 121. Air outlet; 122. Air inlet; 123. Air duct; 13. Inner shell; 131. Mounting part; 14. Outer cylinder; 15. End cap; 20. Knob mechanism; 21. Switching element; 22. Rotating ring; 221. Slot; 222. Slot; 31. Main control board; 40. Elastic element; 51. Heating element; 52. Fan assembly;

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model proposes a hair dryer.

[0033] In the embodiments of this utility model, such as Figures 1 to 5 As shown, the hair dryer includes a housing 10, a circuit device, and a knob mechanism 20. The housing 10 includes a grip portion 11 and an air outlet portion 12 located at one end of the grip portion 11. The air outlet portion 12 is provided with an air outlet 121. The grip portion 11 has a grip area 111. The circuit device is located inside the housing 10. The knob mechanism 20 includes a switch element 21 and a rotating ring 22. The switch element 21 is located inside the grip portion 11 and is electrically connected to the circuit device. The rotating ring 22 is rotatably sleeved on the grip portion 11 and is located on the side of the grip area 111 away from the air outlet portion 12. The rotating ring 22 cooperates with the switch element 21.

[0034] Specifically, the housing 10 also has an air duct 123 and an air inlet 122. The air duct 123 connects the air inlet 122 and the air outlet 121. The blower also includes a fan assembly 52 and a heating element 51. Both the fan assembly 52 and the heating element 51 are located within the air duct 123 and are electrically connected to the circuit device. The air inlet 122 can be located in the grip portion 11 or the air outlet portion 12.

[0035] When the user holds the hair dryer, their hand is positioned in the grip area 111, with the rotating ring 22 located below their hand. The user can rotate the rotating ring 22 to switch the operating state of the switching element 21. Specifically, the switching element 21 can be used as a power switch, toggling between the on and off states; or as a temperature control switch, toggling between cold and hot air settings; or as a fan speed control switch, toggling between high and low fan speed settings. The switching element 21 can be a microswitch, toggle switch, Hall effect switch, potentiometer, or photoelectric switch, etc.

[0036] This utility model's technical solution involves setting a knob mechanism 20 on the handle, so that the rotating ring 22 of the knob mechanism 20 is located on the side of the grip area 111 away from the air outlet 12. When the user holds the hair dryer, the rotating ring 22 is exposed and not covered by the user's palm, making it convenient for the user to operate the rotating ring 22 while holding the hair dryer. Moreover, even if other buttons are set in the grip area 111 or near the air outlet 12, multiple buttons are avoided from being concentrated in one place, reducing button concentration and the risk of accidental operation. At the same time, the rotating ring 22 is larger in size, which facilitates blind operation and makes it easier for the user to use.

[0037] In some embodiments, the rotating ring 22 is spaced apart from the end face of the grip portion 11. This arrangement reduces the risk of the rotating ring 22 being bumped or knocked when the user casually places the hair dryer on a table or puts it in a storage box, ensuring the reliable use of the rotating ring 22.

[0038] In some embodiments, the grip portion 11 is provided with a mounting ring groove, and the rotating ring 22 is located within the mounting ring groove. Specifically, the mounting ring groove is located on the outer peripheral surface of the grip portion 11 and surrounds the grip portion 11, and the rotating ring 22 rotates around the grip portion 11 within the mounting ring groove. This can reduce or even avoid the rotating ring 22 protruding relative to the surface of the grip portion 11, reducing the risk of the rotating ring 22 being bumped or knocked. Optionally, the depth of the mounting ring groove is not less than the thickness of the rotating ring 22, that is, the outer ring surface of the rotating ring 22 can be flush with the surface of the grip portion 11 or the outer ring surface of the rotating ring 22 can be lower than the surface of the grip portion 11, which can improve the user's grip feel and reduce the risk of the rotating ring 22 being bumped or knocked.

[0039] In some embodiments, the grip portion 11 includes an inner shell 13, an outer cylinder 14, and an end cap 15. The inner shell 13 is disposed inside the outer cylinder 14 and has a mounting portion 131 extending from the end of the outer cylinder 14 away from the air outlet 12. The end cap 15 is disposed at the end of the mounting portion 131 away from the air outlet 12. A rotating ring 22 is rotatably fitted onto the mounting portion 131 and located between the outer cylinder 14 and the end cap 15. Specifically, the inner shell 13 is mainly formed by two half-shells joined together front to back or side to side. The switching element 21 is fixed to the inner shell 13. The outer cylinder 14 is fitted over the inner shell 13 to cover the structure of the inner shell 13. A mounting ring groove is formed between the outer cylinder 14 and the end cap 15. During installation, the inner shell 13 can be assembled first, then the outer cylinder 14 can be fitted over the inner shell 13, the rotating ring 22 can be fitted over the mounting part 131, and finally the end cap 15 can be installed on the mounting part 131 to limit the rotating ring 22 and prevent it from falling off. This reduces the limiting structure between the rotating ring 22 and the gripping part 11, thereby simplifying the structure and assembly process of the rotating ring 22 and helping to reduce production costs.

[0040] In some embodiments, the inner wall of the rotating ring 22 is provided with a plurality of slots 221, which are spaced apart circumferentially along the rotating ring 22. The gripping part 11 is provided with an elastic member 40, which has a protrusion that engages with the slots 221. That is, when the rotating ring 22 rotates to the point where the slots 221 correspond to the protrusions, the protrusions are engaged in the slots 221 by the elastic force of the elastic member 40, which can restrict the rotating ring 22 to a certain extent and prevent it from rotating easily. When the user actively rotates the rotating ring 22, the elastic member 40 is compressed under the action of external force, thereby causing the protrusions to disengage from the slots 221.

[0041] The number of slots 221 can be selected according to the function of the switching element 21. For example, when the switching element 21 is used as a power switch, two slots 221 can be provided on the inner wall of the rotating ring 22 corresponding to the elastic element 40. In the power-on state, the protrusion engages with one slot 221, and in the power-off state, the protrusion engages with the other slot 221. When the switching element 21 is used as a fan speed control switch or a temperature control switch, the number of slots 221 can be set according to the number of speed settings.

[0042] Optionally, the gripping part 11 is provided with two elastic elements 40, which are respectively disposed on opposite sides of the gripping part 11. The inner wall of the rotating ring 22 is provided with multiple slots 221 corresponding to each elastic element 40. That is, when the rotating ring 22 rotates to a specific state, the protrusion of each elastic element 40 is engaged in a slot 221. This can make the rotating ring 22 bear force evenly during use, which is beneficial to improving rotational stability and extending service life.

[0043] In some embodiments, the elastic element 40 includes a sleeve with one open end, a spring disposed within the sleeve, and a ball disposed within the opening of the sleeve, with the portion of the ball extending out of the sleeve forming a locking protrusion. In other embodiments, the gripping portion 11 has a mounting hole, and the elastic element 40 includes a spring and a ball. During installation, the spring is inserted into the mounting hole, and during installation of the rotating ring 22, the rotating ring 22 presses the ball into the mounting hole.

[0044] In some embodiments, the circuit device includes a main control board 31, on which a power supply circuit is provided, and a switching element 21 is electrically connected to the power supply circuit. That is, the switching element 21 is used as a power switch to switch the hair dryer between an on state and an off state.

[0045] In some embodiments, the switching element 21 is a toggle switch. A groove 222 is provided on the inner side of the rotating ring 22, and the lever of the toggle switch is located within the groove 222. In the circumferential direction of the grip portion 11, the width of the groove 222 is greater than the width of the lever of the toggle switch. Since the lever of the toggle switch typically moves linearly, while the rotating ring 22 rotates, by making the width of the groove 222 greater than the width of the lever of the toggle switch, a certain amount of space can be provided between the toggle switch and the rotating ring 22, preventing the rotating ring 22 from jamming. Furthermore, the toggle switch has a simple structure, which helps reduce the production cost of the hair dryer.

[0046] In some embodiments, the air outlet 12 is provided with an air duct 123 and an air inlet 122. The air duct 123 connects the air inlet 122 and the air outlet 121. The air outlet 121 is located at the front end of the air outlet 12, and the air inlet 122 is located at the rear end of the air outlet 12. The air duct 123 extends directly from the air inlet 122 to the air outlet 121. This arrangement allows the airflow to flow directly from the air inlet 122 to the air outlet 121, avoiding changes in airflow direction and reducing airflow velocity loss. Of course, in other embodiments, the air inlet 122 can also be provided on the grip portion 11.

[0047] Unlike embodiments where the switching element 21 is used as a power switch, in other embodiments, the circuit device includes a main control board 31, which is equipped with a temperature regulation circuit. Both the heating element 51 and the switching element 21 are electrically connected to the temperature regulation circuit. That is, the user can rotate the rotating ring 22 to switch the switching element 21 to different positions, and the main control board 31 adjusts the power of the heating element 51, thereby controlling the air outlet temperature. This allows the user to easily adjust the air outlet temperature. Furthermore, when the switching element 21 is a potentiometer, stepless adjustment can be achieved, allowing the user to freely adjust the operating temperature for various scenarios. In this case, a separate power button can be provided in the grip area 111 or near the air outlet 12 in the grip area 111.

[0048] In some embodiments, the circuit device includes a main control board 31, on which a wind speed adjustment circuit is provided. The fan assembly 52 and the switching element 21 are both electrically connected to the wind speed adjustment circuit. That is, the user can rotate the rotating ring 22 to switch the switching element 21 to different positions, and the main control board 31 adjusts the motor speed of the fan assembly 52, thereby controlling the airflow speed, which makes it convenient for the user to adjust the airflow. Moreover, when the switching element 21 is a potentiometer, stepless adjustment can be achieved, allowing the user to freely adjust the airflow to suit various scenarios. In this case, a power button can be separately provided in the grip area 111 or at a position near the air outlet 12 in the grip area 111.

[0049] In some embodiments, the hair dryer includes multiple knob mechanisms 20, and the circuitry includes a main control board 31. The main control board 31 is equipped with a temperature control circuit and a fan speed control circuit. The switching element 21 of one knob mechanism 20 and the heating element 51 are connected to the temperature control circuit; the switching element 21 of another knob mechanism 20 and the fan assembly 52 are connected to the fan speed control circuit. That is, multiple rotating rings 22 are spaced apart along the length of the grip portion 11, and the multiple rotating rings 22 are independent of each other, allowing the user to freely adjust them according to actual needs.

[0050] Optionally, the hair dryer also includes a cool air button on the handle, which is electrically connected to a circuit device configured to disconnect the power supply to the heating element 51 when the cool air button is triggered, so as to achieve quick switching of cool air mode.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A hair dryer characterized by, The hair dryer comprises: a housing comprising a holding portion and an air outlet portion located at one end of the holding portion, the air outlet portion being provided with an air outlet, and the holding portion having a holding area; a circuit device arranged in the housing; and a rotary knob mechanism comprising a switch element and a rotary ring, the switch element being arranged in the holding portion and electrically connected to the circuit device, and the rotary ring being rotatably sleeved on the holding portion and located on a side of the holding portion away from the air outlet portion, the rotary ring being matched with the switch element. An inner wall of the rotary ring is provided with a plurality of clamping grooves, and the plurality of clamping grooves are distributed at intervals along a circumferential direction of the rotary ring, the holding portion is provided with an elastic member, and the elastic member has clamping protrusions matched with the clamping grooves. The rotary ring is spaced apart from an end face of the holding portion.

2. The hair dryer of claim 1, wherein The holding portion is externally provided with a mounting ring groove, and the rotary ring is located in the mounting ring groove.

3. The hair dryer of claim 2, wherein The holding portion comprises an inner shell, an outer cylinder and an end cover, the inner shell is arranged in the outer cylinder and has a mounting portion protruding from one end of the outer cylinder away from the air outlet portion, the end cover is arranged at one end of the mounting portion away from the air outlet portion, and the rotary ring is rotatably sleeved on the mounting portion and located between the outer cylinder and the end cover.

4. The hair dryer of claim 1, wherein The circuit device comprises a main control board, the main control board is provided with a power circuit, and the switch element is electrically connected to the power circuit.

5. The hair dryer of claim 1, wherein The switch element is a micro switch, a toggle switch or a Hall switch.

6. The hair dryer of claim 5, wherein The switch element is a toggle switch, an inner side of the rotary ring is provided with a toggle groove, a toggle lever of the toggle switch is located in the toggle groove, and in a circumferential direction of the holding portion, a width of the toggle groove is greater than a width of the toggle lever of the toggle switch.

7. The hair dryer of claim 5, wherein The air outlet portion is provided with an air duct and an air inlet, the air duct is connected between the air inlet and the air outlet, the hair dryer comprises a fan assembly and a heating assembly, and the fan assembly and the heating assembly are both located in the air duct and both electrically connected to the circuit device.

8. The hair dryer of claim 1, wherein The circuit device comprises a main control board, the main control board is provided with a temperature adjusting circuit, and the heating assembly and the switch element are both electrically connected to the temperature adjusting circuit.

9. The hair dryer of claim 8, wherein Alternatively, the circuit device comprises a main control board, the main control board is provided with a wind speed adjusting circuit, and the fan assembly and the switch element are both electrically connected to the wind speed adjusting circuit. Alternatively, the hair dryer comprises a plurality of rotary knob mechanisms, the circuit device comprises a main control board, the main control board is provided with a temperature adjusting circuit and a wind speed adjusting circuit, a switch element of one of the rotary knob mechanisms and the heating assembly are connected to the temperature adjusting circuit, and a switch element of another of the rotary knob mechanisms and the fan assembly are connected to the wind speed adjusting circuit. ​

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