Side-rotating multi-speed handheld device

Abstract

A side-rotating multi-speed handheld device, comprising a handheld portion (100) and a control assembly (200), wherein the handheld portion (100) is provided with an air duct (110), the air duct (110) being provided with a brushless electric motor (120); the control assembly (200) is mounted on the handheld portion (100), the control assembly (200) being of a hollow structure, and the hollow structure of the control assembly (200) forming an airflow passage (201), with the air duct (110) being located within the airflow passage (201); and the control assembly (200) is used for regulating the rotational speed of the brushless electric motor (120). The control assembly (200) is annular in shape, and by making the air duct (110) located within the control assembly (200), a fluid inside the air duct (110) may pass through the control assembly (200), thus avoiding the control assembly (200) occupying the space within the air duct (110), and thereby enabling an airflow to exit the air duct (110) smoothly and without obstruction.

Description

Side-spinning multi-speed handheld device Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a side-rotating multi-speed handheld appliance. Background Art

[0002] A hair dryer is one of the essential beauty appliances in our life. It is mostly used for drying and shaping hair, but can also be used for other drying and beautifying purposes.

[0003] Conventional hair dryers often use a control assembly to select multiple wind speed and temperature levels. The control assembly includes a roller, which is located on the handle. A portion of the roller is embedded in the handle. The wind from the hair dryer cannot pass through the roller, thereby reducing the air duct corresponding to the roller and hindering the air output of the hair dryer. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a side-rotating multi-speed handheld device.

[0005] According to the first aspect of the present application, the side-rotating multi-speed handheld device includes a handheld part and a control component, the handheld part has an air duct, and the air duct is provided with a brushless motor; the control component is installed on the handheld part, the control component is a hollow structure, the hollow structure of the control component forms an air passage, the air duct is located in the air passage, and the control component is used to adjust the speed of the brushless motor.

[0006] According to the side-rotating multi-speed handheld device of the embodiment of the present application, there are at least the following technical effects: the control component is annular, so that the air duct is located inside the control component, and the fluid in the air duct can pass through the control component, so that the control component avoids occupying the space of the air duct, and the air outlet of the air duct can be unobstructed.

[0007] According to some embodiments of the present application, the cross-sectional area corresponding to any point on the air duct is 400mm 2 -500mm 2 .

[0008] According to some embodiments of the present application, the handheld part has an air inlet and an air outlet connected to the air duct, the air inlet is located upstream of the air inlet of the brushless motor, and the air outlet and the control component are located downstream of the air outlet of the brushless motor.

[0009] According to some embodiments of the present application, the brushless motor is located in the middle of the handheld part.

[0010] According to some embodiments of the present application, the position of the control component corresponds to the position of the air outlet.

[0011] According to some embodiments of the present application, the control component includes a rotary encoder, a rotating member and a drive plate, the rotary encoder is electrically connected to the drive plate, the rotating member is connected to the rotary encoder so that when the rotating member rotates, the rotary encoder generates a corresponding gear adjustment signal, the gear adjustment signal is fed back to the drive plate, and the drive plate is used to adjust the speed of the brushless motor.

[0012] According to some embodiments of the present application, a main body is further included, which is detachably mounted on the handheld part. The main body can be an air outlet unit connected to the handheld part or a dust collection device connected to the handheld part.

[0013] According to some embodiments of the present application, a heating component is provided in the air outlet unit, and the control component is capable of adjusting the heating temperature of the heating component.

[0014] According to some embodiments of the present application, the outer side of the handheld portion has a recess, and the rotating member, the rotary encoder and the driving plate are sleeved on the recess.

[0015] According to some embodiments of the present application, the handheld part includes a first shell and a second shell, a part of the first shell is connected to the control component, and another part of the first shell is snap-connected to the second shell, the air duct is formed between the first shell and the second shell, and the position of the brushless motor corresponds to the position of the second shell.

[0016] Additional aspects and advantages of the present application will be given in part in the description which follows, and in part will be obvious from the description which follows, or will be learned through practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] FIG1 is a cross-sectional view of a side-spinning multi-speed handheld device according to an embodiment of the present application;

[0019] FIG2 is an exploded view of the side-spinning multi-speed handheld device;

[0020] FIG3 is a cross-sectional view of the control assembly;

[0021] Figure 4 is an enlarged view of point A in Figure 1;

[0022] FIG5 is a radial cross-sectional view of a conventional roller placed on a handheld portion;

[0023] FIG6 is a side view of the side-rotating multi-speed handheld device;

[0024] FIG7 is a cross-sectional view taken along line AA in FIG6 ;

[0025] FIG8 is a schematic structural diagram of the handheld device applied to a hair dryer;

[0026] FIG9 is a schematic structural diagram of the handheld device applied to a handheld vacuum cleaner.

[0027] Figure numerals: handheld part 100, air duct 110, brushless motor 120, air inlet 130, air outlet 140, recess 150, first shell 160, second shell 170, control component 200, air passage 201, rotary encoder 210, rotating part 220, drive plate 230, main body 300, roller 400. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0029] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In the description of this application, terms such as "greater than," "less than," and "exceed" are understood to exclude the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly indicating the number or order of the technical features indicated.

[0031] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0032] As shown in Figure 1, the side-rotating multi-speed handheld device according to an embodiment of the present application includes a handheld part 100 and a control component 200. The handheld part 100 has an air duct 110, and the air duct 110 is provided with a brushless motor 120; the control component 200 is installed on the handheld part 100, as shown in Figures 2 and 3, the control component 200 is a hollow structure, and the hollow structure of the control component 200 forms an air passage 201. As shown in Figures 1 and 4, the air duct 110 is located in the air passage 201; as shown in Figure 3, the control component 200 includes a rotary encoder 210, a rotating part 220 and a drive plate 230, the rotary encoder 210 is electrically connected to the drive plate 230, and the rotating part 220 is connected to the rotary encoder 210 so that when the rotating part 220 rotates, the rotary encoder 210 generates a corresponding gear adjustment signal, and the gear adjustment signal is fed back to the drive plate 230, and the drive plate 230 adjusts the speed of the brushless motor 120.

[0033] For example, as shown in FIG1 , the handheld portion 100 is cylindrical in shape, and the interior of the handheld portion 100 is hollow, forming an air duct 110. An air outlet 140 communicating with the air duct 110 is provided at the upper end of the handheld portion 100, and an air inlet 130 communicating with the air duct 110 is provided at the lower end of the handheld portion 100. A brushless motor 120 is installed in the air duct 110, and the brushless motor 120 can be a model NBW-FT-001. It is conceivable that the control assembly 200 may include a hollow rotating member 220 and a hollow adjusting element, and the adjusting element is used to adjust the speed of the brushless motor 120.

[0034] As shown in FIG5 , the existing handheld portion 100 is provided with a roller 400, a portion of which is embedded in the handheld portion 100, so that the roller 400 occupies a portion of the space inside the handheld portion 100, and then 30% of the space of the portion of the air duct 110 corresponding to the roller 400 is blocked by the roller 400, thereby affecting the air volume, as shown in FIG2 and FIG3 , while the rotary encoder 210, the rotating member 220 and the driving plate 230 of the present application are all annular, as shown in FIG4 , the fluid in the air duct 110 can pass through the hollow portion of the rotary encoder 210, the rotating member 220 and the driving plate 230. 6 and 7 , the rotary encoder 210, the rotating member 220, and the driving plate 230 avoid occupying the space of the air duct 110, thereby allowing the air to flow out of the air duct unobstructed, ensuring the air volume and making the handheld device compact. Specifically, an air passage 201 is formed between the hollow portion of the rotary encoder 210, the hollow portion of the rotating member 220, and the hollow portion of the driving plate 230. The diameter of the air passage 201 is greater than the diameter of the air duct 110, and thus the air duct 110 is located in the air passage 201.

[0035] The rotating member 220 can rotate clockwise or counterclockwise along the circumferential direction of the handheld part 100. The rotating member 220 is connected to the rotating part of the rotary encoder 210. The rotary encoder 210 is electrically connected to the drive board 230. The drive board 230 is connected to the brushless motor 120. When the rotating member 220 rotates relative to the handheld part 100, the rotary encoder 210 can output different gear adjustment signals. The drive board 230 adjusts the speed of the brushless motor 120 according to the different gear adjustment signals. The rotary encoder 210 can use the EC43 hollow rotary encoder 210 (20 bits). The drive board 230 can use a PCB control board. The MOS tube on the drive board 230 drives the brushless DC motor by changing the DC voltage, thereby changing the speed of the brushless motor 120 to achieve an infinitely variable speed effect, so that the wind speed is not limited to 2-3 gears, but can reach 10 or even more than 20 gears. The multi-gear wind speed adjustment meets the user's needs in different environments.

[0036] Specifically, the rotary encoder 210, the rotating member 220, and the drive plate 230 are all mounted on the outside of the handheld portion 100. The rotary encoder 210 can use low-voltage DC (safety voltage DC5V) to drive the brushless DC motor. The speed of the brushless motor 120 can be adjusted from 50,000 rpm to 110,000 rpm. This wide speed drive range, combined with the connection of the handheld portion 100 to other structures, can enable the handheld device to be used in the fields of handheld curling devices, handheld vacuum cleaners, small straightening combs, high-speed hair dryers, pet hair dryers, and hair drying devices for mothers and infants. The drive plate 230 can also be electrically connected to the heating component to achieve stepless temperature adjustment within the adjustment range of 40°C to 99°C. The rotating member 220 can be rotated clockwise to adjust the wind speed or temperature of the handheld device, thereby increasing the wind speed or temperature, and can be rotated counterclockwise to adjust the wind speed or temperature of the handheld device, thereby decreasing the wind speed or temperature. The maximum controllable range is 20 levels.

[0037] In some embodiments of the present application, the cross-sectional area of ​​the handheld part 100 corresponding to any point on the air duct 110 in the radial direction is 400 mm. 2 Up to 500mm 2 , to ensure the wind output performance of the brushless motor 120.

[0038] In some embodiments of the present application, as shown in Figure 1, the air inlet 130 is located at the upstream position of the air inlet of the brushless motor 120, and the air outlet 140 and the control component 200 are located at the downstream position of the air outlet of the brushless motor 120, that is, the air inlet 130 is located below the brushless motor 120, and the control component 200 and the air outlet 140 are located above the brushless motor 120, so that the fluid delivered by the brushless motor 120 can pass through the rotary encoder 210, the rotating part 220 and the drive plate 230, and then be discharged through the air outlet 140.

[0039] In a further embodiment of the present application, as shown in FIG. 1 , the brushless motor 120 is located in the middle of the handheld portion 100 .

[0040] In a further embodiment of the present application, as shown in Figure 1, the position of the control component 200 corresponds to the position of the air outlet 140, that is, the control component 200 is located at the upper end of the handheld part 100, making it easier for the user to adjust the rotating part 220 and avoid accidentally touching the adapter 220 when holding the handheld device.

[0041] In some embodiments of the present application, as shown in Figures 1, 2, and 4, the outer side of the handheld part 100 has a recess 150, the rotary encoder 210 and the drive plate 230 are mounted on the recess 150, and the rotating member 220 is mounted on the rotary encoder 210. The recess 150 is provided so that a portion of the rotating member 220 is embedded in the handheld part 100, so that the diameter of the rotating member 200 is greater than or equal to the diameter of the handheld part 100, so that the radial space occupied by the handheld part 100 corresponding to the control component 200 is small, and when the recess 150 is located at the upper end of the handheld part 100, the upper end of the handheld part 100 forms a step structure, which is convenient for connection with the barrel part of the hair dryer, the upper and lower clamping plates of the curling iron, or other structures, and can be used to support the above-mentioned structures, so that the handheld device can be used in other hair care products such as handheld curling devices, handheld vacuum cleaners, small straight hair combs, high-speed hair dryers, pet hair dryers, and hair drying devices for mothers and infants.

[0042] In some embodiments of the present application, as shown in Figure 4, a main body 300 is further included, and the main body 300 is detachably mounted on the handheld part 100. The main body 300 can be an air outlet unit connected to the handheld part 100 or a dust collection device connected to the handheld part 100. The air outlet unit can be the air cylinder part of a hair dryer (as shown in Figure 8), the curling roller of a curling iron, the comb head of a straight hair comb, the air outlet head of a pet dryer, or the air outlet unit of other hair care products; the dust collection device can be a dust collection device of a handheld vacuum cleaner, as shown in Figure 9, so that the handheld device can be used on a handheld vacuum cleaner.

[0043] In a further embodiment of the present application, a heating component is provided in the air outlet unit, and the driving board 230 can adjust the heating temperature of the heating component according to the gear adjustment signal, as shown in Figure 8, that is, the air outlet unit equipped with the heating component cooperates with the handheld part 100 to form a hair dryer, and the heating component can be a heating component such as a thyristor and a heating wire.

[0044] In a further embodiment of the present application, as shown in Figure 3, the rotary encoder 210 is snap-connected to the rotating member 220, and a portion of the main body 300 is placed between the rotary encoder 210 and the rotating member 220, so that the rotary encoder 210 cooperates with the rotating member 220 to fix the main body 300, and the rotary encoder 210 is snap-connected to the rotating member 220 to facilitate the assembly and disassembly of the main body 300, and the snap-connection can be a buckle and a hole.

[0045] In some embodiments of the present application, as shown in Figure 2, the handheld part 100 includes a first shell 160 and a second shell 170, a portion of the first shell 160 is connected to the control component 200, and another portion of the first shell 160 is snap-connected to the second shell 170, and an air duct 110 is formed between the first shell 160 and the second shell 170, and the position of the brushless motor 120 corresponds to the position of the second shell 170.

[0046] For example, the control component 200 is mounted on the upper end of the first shell 160, a notch is provided on one side of the lower middle portion of the first shell 160, the second shell 170 is snap-connected to the notch, and the brushless motor 120 is installed between the second shell 170 and the first shell 160 to facilitate the installation and disassembly of the brushless motor 120, and the installation and disassembly of the brushless motor 120 and the control component 200 do not interfere with each other.

[0047] Throughout this specification, references to the terms "some embodiments" or "it is contemplated that" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A side-rotating multi-speed handheld device, characterized in that: include: A handheld part, wherein the handheld part has an air duct, and the air duct is provided with a brushless motor; A control component is installed on the handheld part. The control component is a hollow structure. The hollow structure of the control component forms an air passage. The air duct is located in the air passage. The control component is used to adjust the rotation speed of the brushless motor.

2. The side-spinning multi-speed handheld device according to claim 1, characterized in that: The cross-sectional area of ​​any point on the air duct is 400mm 2 -500mm 2 .

3. The side-spinning multi-speed handheld device according to claim 1, characterized in that: The handheld part has an air inlet and an air outlet connected to the air duct, the air inlet is located at the upstream position of the air inlet of the brushless motor, and the air outlet and the control component are located at the downstream position of the air outlet of the brushless motor.

4. The side-spinning multi-speed handheld device according to claim 1 or 3, characterized in that: The brushless motor is located in the middle of the handheld part.

5. The side-spinning multi-speed handheld device according to claim 3, characterized in that: The position of the control component corresponds to the position of the air outlet.

6. The side-spinning multi-speed handheld device according to claim 1, characterized in that: The control component includes a rotary encoder, a rotating part and a driving plate. The rotary encoder is electrically connected to the driving plate. The rotating part is connected to the rotary encoder so that when the rotating part rotates, the rotary encoder generates a corresponding gear adjustment signal. The gear adjustment signal is fed back to the driving plate, and the driving plate is used to adjust the rotation speed of the brushless motor.

7. The side-spinning multi-speed handheld device according to claim 1, characterized in that: It also includes a main body, which is detachably mounted on the handheld part. The main body can be an air outlet unit connected to the handheld part or a dust collection device connected to the handheld part.

8. The side-spinning multi-speed handheld device according to claim 7, characterized in that: A heating component is provided in the air outlet unit, and the control component can adjust the heating temperature of the heating component.

9. The side-spinning multi-speed handheld device according to claim 6, characterized in that: The outer side of the handheld part is provided with a concave position, and the rotating member, the rotary encoder and the driving plate are sleeved on the concave position.

10. The side-spinning multi-speed handheld device according to claim 1, characterized in that: The handheld part includes a first shell and a second shell, a part of the first shell is connected to the control component, and another part of the first shell is snap-connected to the second shell, the air duct is formed between the first shell and the second shell, and the position of the brushless motor corresponds to the position of the second shell.

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