WO2023082759A1 - 毛发干燥用具 - Google Patents

毛发干燥用具 Download PDF

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Publication number
WO2023082759A1
WO2023082759A1 PCT/CN2022/113988 CN2022113988W WO2023082759A1 WO 2023082759 A1 WO2023082759 A1 WO 2023082759A1 CN 2022113988 W CN2022113988 W CN 2022113988W WO 2023082759 A1 WO2023082759 A1 WO 2023082759A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
axial direction
along
frame
components
Prior art date
Application number
PCT/CN2022/113988
Other languages
English (en)
French (fr)
Inventor
马加华
张鑫
汪治洋
Original Assignee
莱克电气绿能科技(苏州)有限公司
莱克电气股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 莱克电气绿能科技(苏州)有限公司, 莱克电气股份有限公司 filed Critical 莱克电气绿能科技(苏州)有限公司
Publication of WO2023082759A1 publication Critical patent/WO2023082759A1/zh

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/20—Additional enhancing means

Definitions

  • the invention relates to the technical field of hair drying, in particular to a hair drying appliance.
  • the hair dryer can speed up the drying of the hair, shorten the waiting time, and can also shape the hair, which has brought great benefits to our daily life. convenient.
  • some hair dryers are relatively large in size, which is inconvenient to store and not easy to carry out.
  • the present invention proposes a hair drying appliance, which has a more compact structure and a smaller size, which is more convenient for daily storage and easy to carry outside.
  • Hair drying appliances including:
  • the handle is provided with a motor
  • the shell is connected to the handle
  • a circuit board assembly the circuit board assembly is arranged in the housing, and a plurality of components are arranged on the circuit board assembly,
  • a circuit board frame, the circuit board frame is arranged in the housing, the circuit board assembly and the circuit board frame are arranged along the axial direction of the housing, and the circuit board frame is provided with a A directionally recessed recess of the plate assembly into which at least some of said elements protrude.
  • the vertical distance of the element extending along the axial direction is the height of the element, and the height of at least part of the elements projected along the axial direction in the concave portion is greater than that projected in The height of the element outside the recess.
  • the circuit board frame includes a first flat plate and a second flat plate, and along the axial direction, the distance between the second flat plate and the circuit board assembly is larger than that between the first flat plate and the circuit board assembly.
  • the spacing of the plate assembly, at least part of the projection of said elements along said axis is located on said second plate.
  • the transition between the first plate and the second plate is smooth
  • the hair drying appliance includes an air duct
  • the circuit board frame separates the circuit board assembly from the air duct
  • the air flows into a side of the circuit board frame away from the circuit board assembly along the radial direction of the housing, and flows out along the axial direction of the housing.
  • the circuit board assembly includes a first circuit board and a second circuit board arranged at intervals along the axial direction, and the second circuit board is located between the first circuit board and the circuit board holder.
  • the plurality of components some are arranged on the first circuit board, and some are arranged on the second circuit board, and the projection of the second circuit board along the axial direction is the same as that of the first circuit board.
  • the projections of the circuit boards along the axis are at least partially overlapped.
  • the vertical distance of the element extending along the axial direction is the height of the element, and along the axial direction, the projection of the second circuit board onto the first circuit board is The area outside the area is set as the first area, which is arranged in the elements on the first circuit board, and the height of at least some of the elements in the first area is greater than that of the elements in the projected area high.
  • the components whose height is not smaller than the distance between the first circuit board and the second circuit board are arranged on the first circuit board and located in the first region.
  • the vertical distance of the element extending along the axial direction is the height of the element, and along the axial direction, the projection of the second circuit board onto the first circuit board is The area outside the area is defined as a first area, and the height of at least some of the components disposed in the first area on the first circuit board is greater than the height of the components disposed on the second circuit board.
  • At least part of the components located in the first region protrude into the recess.
  • the circuit board frame includes a first flat plate and a second flat plate, and along the axial direction, the distance between the second flat plate and the circuit board assembly is larger than that between the first flat plate and the circuit board assembly.
  • the spacing of the board assembly, at least part of the components arranged on the second circuit board are bonded to the first flat plate, and at least part of the components arranged on the first circuit board are bonded to the second flat plate .
  • At least a capacitor and a negative ion generator are arranged on the first circuit board, and the capacitor and the negative ion generator are located in the first area.
  • At least transistors are arranged on the second circuit board.
  • the hair drying appliance includes an air duct, the circuit board frame is embedded with a heat dissipation element communicating with the air duct, and the heat dissipation element is in contact with the transistor.
  • the circuit board assembly is fixedly connected to the circuit board frame.
  • the circuit board frame includes a fixing column protruding toward the circuit board assembly, the fixing column is fixedly connected with the first circuit board, and the projection of the fixing column along the axial direction Located within the range of the first circuit board.
  • the circuit board frame includes a plurality of positioning pieces protruding toward the circuit board assembly, each of the positioning pieces is connected to the outside of one of the fixing columns, and the first circuit board The side wall resists the plurality of positioning pieces.
  • it also includes a heating component, the circuit board component, the circuit board frame, and the heating component are sequentially arranged along the axial direction, the circuit board frame is fixedly connected to the heating component, and the The heating component is fixedly connected with the shell.
  • the heating component includes an outer cylinder and an inner cylinder
  • the outer cylinder is fixedly connected with the circuit board frame
  • the outer cylinder is sleeved on the outside of the inner cylinder
  • the inner cylinder and the A heating wire is arranged between the outer cylinders
  • a water ion generator is arranged inside the inner cylinder.
  • the heating assembly further includes a temperature control device and wires
  • the temperature control device includes a temperature controller and a fuse electrically connected to each other, the circuit board assembly, the heating wire, the The three temperature control devices are electrically connected in sequence to form a loop, with the circuit board assembly and the heating wire as external components, and the fuse and the external components are electrically connected through the wires.
  • the outer wall of the inner cylinder is provided with an inwardly recessed receiving groove, and the temperature controller is arranged in the receiving groove.
  • a region corresponding to the receiving groove on the inner side wall of the inner cylinder protrudes inward to form a protruding portion.
  • the outer cylinder includes an outer cylinder side plate and an outer cylinder end plate, the outer cylinder side plate is arranged radially outside the inner cylinder, and the outer cylinder end The plate is located at the outer end of the protruding part, and the magnetic part is clamped between the protruding part and the end plate of the outer cylinder.
  • it further includes a nutrient box, and both the nutrient box and the magnetic piece are clamped between the extension part and the end plate of the outer cylinder.
  • both the nutrient box and the magnetic piece are ring-shaped, and the ratio m of the central angle of the area occupied by the magnetic piece to the central angle of the area occupied by the nutrient box is in the range of .1.5 ⁇ m ⁇ 2.
  • the circuit board frame includes a wire protection tube protruding toward the heating component, and the wire passes through the wire protection tube.
  • the interior of the circuit board frame is hollow to form a cavity, and the wire protection tube extends into the cavity, and The end of the wire protection tube is against the inner cylinder.
  • the range of the maximum diameter d of the first circuit board is 60mm ⁇ d ⁇ 65mm
  • the distance s between the first circuit board and the second circuit board is in the range of s ⁇ 8mm
  • the range of the height h of the capacitor is 22mm ⁇ h ⁇ 24mm.
  • the circuit board frame is provided with a recessed portion that is recessed away from the circuit board assembly, and the recessed portion can avoid at least some of the components provided on the circuit board assembly, so that they can extend into the recessed portion.
  • the upward space can be fully utilized, so that the distribution of the circuit board assembly and the circuit board frame in the axial direction is more compact, and the overall size of the circuit board assembly and the circuit board frame is therefore smaller, so that the size of the hair drying appliance is also smaller. Small, more convenient for daily storage, and easy to carry when going out.
  • Figure 1 is a schematic diagram of the overall structure of a hair drying appliance in an embodiment of the present invention
  • Fig. 2 is a sectional view of the hair drying appliance in Fig. 1;
  • Fig. 3 is a structural schematic diagram of the circuit board, circuit board frame and heating components of the hair drying appliance in Fig. 1;
  • Fig. 4 is a cross-sectional view of components such as the circuit board, circuit board frame and heating components of the hair dryer in Fig. 1;
  • Fig. 5 is a schematic structural view of the circuit board of the hair drying appliance in Fig. 1;
  • Fig. 6 is a schematic structural view of the circuit board frame of the hair drying appliance in Fig. 1;
  • Fig. 7 is a cross-sectional view of the circuit board frame of the hair drying appliance in Fig. 6;
  • Fig. 8 is a structural schematic diagram of the heating element of the hair drying appliance in Fig. 1;
  • Fig. 9 is a structural schematic diagram of the inner cylinder and other components of the heating component in Fig. 8;
  • Fig. 10 is a schematic structural view of the outer cylinder of the heating component in Fig. 8;
  • Fig. 11 is a partial structural schematic diagram of the heating component in Fig. 8;
  • Fig. 12 is the structural representation of water ion generator in Fig. 11;
  • Fig. 13 is a schematic structural diagram of a magnetic member and a nutrient box in an embodiment of the present invention.
  • Fig. 14 is an electrical connection mode of the heating wire, the temperature control device and the circuit board assembly in an embodiment of the present invention
  • Fig. 15 is an electrical connection mode of the heating wire, the temperature control device and the circuit board assembly in another embodiment of the present invention.
  • Hair dryer main body 10 housing 100, hook 110, end cap 120;
  • Circuit board frame 300 first flat plate 311, second flat plate 312, second recessed part 313, fixing column 320, positioning piece 330, wire protection tube 341, second wire protection tube 343, clamping block 351, opening 361, cavity 362;
  • Inner cylinder 420 installation groove 421, receiving groove 422, extension part 423, limit plate 424, second fixing column 425,
  • Touch screen assembly 610 cooling element 620, magnetic element 630, sealing ring 640, nutrient substance box 650;
  • Handle 700 air intake net 710, motor 720.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • FIG. 1 is a schematic diagram of the overall structure of the hair drying appliance in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the hair drying appliance in FIG. 1
  • the hair drying appliance provided by an embodiment of the present invention includes a hair drying appliance main body 10 and a handle 700, the handle 700 is connected to the hair drying appliance main body 10, and the inner cavities of the two communicate to form an air duct.
  • the handle 700 is provided with an air inlet net 710
  • the main body 10 of the hair dryer is provided with an air outlet hole.
  • the inside of the handle 700 is provided with a motor 720, and the motor 720 rotates so that the air flows into the air duct through the air inlet net 710, and gradually flows towards the main body 10 of the hair dryer, and finally flows out from the air outlet, thereby realizing hair drying or styling.
  • Fig. 3 is a schematic structural diagram of the circuit board, circuit board frame and heating components of the hair drying appliance in Fig. 1
  • Fig. 4 is the circuit board and circuit of the hair drying appliance in Fig. 1
  • Fig. 6 is a schematic structural diagram of the circuit board frame of the hair drying appliance in Fig. 1
  • Fig. 7 is a cross-sectional view of the circuit board frame of the hair drying appliance in Fig. 6 .
  • the main body 10 of the hair dryer includes a housing 100 , a circuit board assembly 200 , a circuit board frame 300 and other components.
  • the shell 100 is fixedly connected with the handle 700 .
  • the circuit board assembly 200 and the circuit board frame 300 are arranged inside the housing 100 along the axial direction of the housing 100 . These internal components are separated from the outside by the shell 100 to form protection, and the shell 100 is preferably made of a material with high strength.
  • the circuit board assembly 200 is provided with a plurality of components, and the circuit board frame 300 is provided with a recessed portion that is recessed away from the circuit board assembly 200 , the recess can avoid at least some of the components and make them extend into the recess. In this way, in the axial direction of the housing 100, it is equivalent to the concave-convex cooperation between the circuit board assembly 200 and the circuit board frame 300, which can make full use of the space along the axial direction of the housing 100.
  • the distribution is more compact, so that the size of the hair drying appliances along the axial direction of the casing 100 is smaller, which is more convenient for daily storage and easy to carry out.
  • the positional relationship of each component will be described below with the orientation of each drawing, but this orientation is not used as a limitation on the positional relationship of each component.
  • the vertical distance of the component on the circuit board assembly 200 along the axial direction of the housing 100 is set as the height of the component, and the axial direction in the following refers to the axial direction of the housing 100 .
  • the recessed part is located on the side of the circuit board holder 300 away from the handle 700 , that is, the recessed part is located at the left end of the circuit board holder 300 in the viewing angle shown in FIG. 2 .
  • all components protruding from the circuit board assembly 200 protrude into the recess.
  • a larger recess can be provided, so that the projection of all elements along the axial direction is located in the recess.
  • a plurality of recesses may also be provided, respectively for avoiding components in different regions.
  • part of the components protruding downward on the circuit board assembly 200 protrude into the recessed portion, and some components are located outside the recessed portion. That is, the projection of some elements along the axial direction is located inside the recessed portion, and the projection of some elements along the axial direction is located outside the recessed portion.
  • the height of at least some of the elements projected in the recessed portion along the axial direction is greater than the height of the elements projected outside the recessed portion.
  • the heights of all elements projected inside the recessed portion along the axial direction are greater than the heights of elements projected outside the recessed portion.
  • the height of some elements projected in the recess along the axial direction is greater than the height of the elements projected outside the recess, and the height of some elements is less than or equal to the height of the elements projected outside the recess.
  • the element can be fully inserted. When fully extended, there may be a gap or contact between the element and the bottom wall of the recess. If the recess depth of the recess is small, the element may only partially protrude and partly remain outside the recess, but even so, the axial dimension can be reduced.
  • the circuit board holder 300 includes a first flat plate 311 and a second flat plate 312.
  • the pitch of the plate assembly 200 that is, the aforementioned recess is formed at the second plate 312 , and the axial projection of at least some elements is located in the region where the second plate 312 is located.
  • the concave portion may also be formed by a curved surface, for example, the concave portion is formed by a concave spherical surface.
  • the concave portion may also be formed by providing polygonal grooves, such as rectangular grooves. In addition to the several shapes listed above, other conventional concave shapes are also acceptable.
  • the air flow enters the air duct from the air intake net 710 on the handle 700 and flows into the main body 10 of the hair drying appliance.
  • the circuit board frame 300 separates the circuit board assembly 200 from the air duct and is located on both sides of the circuit board frame 300 .
  • the airflow flows into the side of the circuit board frame 300 away from the circuit board assembly 200 along the radial direction of the housing 100, and changes the flow direction to flow out along the axial direction of the housing 100, that is, the air duct is bent here.
  • the transition area between the two can guide the flow direction of the airflow, so that the flow path of the airflow smoothly transitions from flowing along the radial direction of the housing 100 to flowing along the axial direction of the housing 100 .
  • pressure and velocity losses can be reduced.
  • the space on the side of the circuit board holder 300 away from the circuit board assembly 200 becomes smaller, so that the pressure and velocity of the airflow can be increased to compensate for the pressure and velocity loss caused by the change of the flow direction.
  • FIG. 5 is a schematic structural view of the circuit board of the hair drying appliance in FIG. 1 .
  • the circuit board assembly 200 includes a first circuit board 210 and a second circuit board 220 arranged at intervals along the axial direction.
  • a support member 230 is provided between the first circuit board 210 and the second circuit board 220, and the second circuit board 220 and the first circuit board 210 are fixedly connected to the support member 230, for example, the second circuit board 220,
  • the first circuit board 210 is respectively fixed on two ends of the supporting member 230 .
  • the second circuit board 220 is electrically connected to the first circuit board 210 through the supporting member 230 .
  • the second circuit board 220 is located between the first circuit board 210 and the circuit board frame 300 . Among the plurality of components, some are disposed on the first circuit board 210 and some are disposed on the second circuit board 220 .
  • the projection of the second circuit board 220 along the axial direction of the housing 100 is at least partially coincident with the projection of the first circuit board 210 along the axial direction of the housing 100 .
  • the number and size of the installed components remain the same, compared with the arrangement of one circuit board, two circuit boards are provided, and the projections of the two circuit boards along the axial direction of the housing 100 are at least partially overlapped, so that the radial size of the circuit board assembly 200 can be reduced , thereby reducing the radial dimension of the entire hair drying appliance main body 10 .
  • two circuit boards arranged at intervals will increase the axial dimension, but combined with the aforementioned method of setting the recessed part on the circuit board frame 300 for avoidance, this disadvantage can be weakened or even eliminated, thereby The radial and axial dimensions of the hair drying appliance main body 10 are reduced as much as possible.
  • projections of the first circuit board 210 and the second circuit board 220 along the axial direction of the housing 100 may partially overlap.
  • the projection of the second circuit board 220 along the axial direction of the casing 100 is completely within the scope of the first circuit board 210, such as the embodiment shown in FIG.
  • the size of the circuit board 210 can be reduced as much as possible in the radial direction.
  • the area outside the projection area of the second circuit board 220 axially projected onto the first circuit board 210 is set as the first area, and some of the components arranged on the first circuit board 210 are located in the projection area inside, part of which is outside the projection area (that is, inside the first area).
  • the height of the components in the projected area should be smaller than the distance between the first circuit board 210 and the second circuit board 220 , and the distance between the two should ensure the shortest safe distance, so as to avoid potential safety hazards due to too small distance between the components and the second circuit board 220 .
  • the height of at least some elements located in the first area is greater than the height of the elements located in the projected area.
  • the height of some elements located in the first area is greater than the height of the elements located in the projected area, and the height of some elements is less than or equal to the height of the elements located in the projected area.
  • the heights of all the elements located in the first area are greater than the heights of the elements located in the projected area. Since the distance between the first circuit board 210 and the second circuit board 220 should not be less than the height of the components located in the projected area, these components with larger heights should be arranged in the first area outside the projected area as much as possible. When as many components with smaller heights are arranged in the projection area as possible, the distance between the first circuit board 210 and the second circuit board 220 does not need to be set too large. In this way, the overall size of the circuit board assembly 200 along the axial direction can be greatly reduced.
  • components whose height is greater than or equal to the distance between the first circuit board 210 and the second circuit board 220 are disposed on the first circuit board 210 and located in the first area.
  • the first circuit board 210 is a circular plate
  • the second circuit board 220 is a special-shaped plate with a gap, and the gap can be greater than or equal to the above-mentioned height of the first circuit board 210 and the second circuit board.
  • the elements of the spacing of the plates 220 form a relief.
  • the second circuit board 220 may also be in a regular shape, such as a circle, an ellipse, or a polygon.
  • the first circuit board 210 may also be in a regular shape such as an ellipse or a polygon.
  • the position of the notch on the second circuit board 220 is not limited, as long as it can avoid the components disposed on the first circuit board 210 .
  • the height of at least some of the components located in the first region is greater than the height of the components disposed on the second circuit board 220 .
  • the height of some components in the first area is greater than the height of the components on the second circuit board 220
  • the height of some components is less than or equal to the height of the components on the second circuit board 220 .
  • the height of all components located in the first region is greater than the height of components located on the second circuit board 220 . That is to say, at least some of the components with larger heights are arranged in the first area.
  • this solution can make full use of the first circuit board 210 and the second circuit board 220.
  • the part between the first circuit board 210 and the second circuit board 220 will not increase the dimension of the entire circuit board assembly 200 in the axial direction, thereby reducing the overall circuit board assembly 200 along the axial dimension.
  • the components whose height on the first circuit board 210 is greater than the sum of the distance between the first circuit board 210 and the second circuit board 220 and the height of the components on the second circuit board 220, it can be reduced to protrude to the second circuit board 220 outside the distance.
  • the pitch can reduce the size of the entire circuit board assembly 200 along the axial direction. To sum up, the above arrangement is beneficial to greatly reduce the overall size of the circuit board assembly 200 along the axial direction.
  • the components disposed on the first circuit board 210 at least some of the components located in the first area protrude into the recesses provided on the circuit board frame 300 .
  • the components with higher height should be located in the first area as far as possible, so that these components can extend into the recessed part provided on the circuit board frame 300, which can form an avoidance with the recessed part, thereby reducing the circuit board assembly to a large extent. 200 overall dimension along the axial direction.
  • the circuit board frame 300 when the circuit board frame 300 is provided with the first flat plate 311 and the second flat plate 312 according to the manner of the foregoing embodiments, at least some components arranged on the second circuit board 220 are attached to the first flat plate 311 Together, at least part of the components disposed on the first circuit board 210 are bonded to the second flat plate 312 .
  • some components disposed on the second circuit board 220 are bonded to the first flat plate 311 , or all components are bonded to the first flat plate 311 .
  • Part of the components disposed on the first circuit board 210 are bonded to the second flat plate 312 , or all the components are bonded to the second flat plate 312 .
  • the second circuit board 220 and the components attached to it are mutually limited, and the first circuit board 210 and the components attached to it are limited by each other.
  • the mutual limit between them can make the fixed relationship more stable.
  • the first circuit board 210 is provided with components such as a capacitor 241, an anion generator 242 and a thyristor 244, and the capacitor 241, anion generator 242 and a thyristor 244 and other components are located in the first area.
  • the height of capacitor 241, negative ion generator 242 and thyristor 244 is relatively large, and they are arranged in the first area, which can make full use of the distance between the first circuit board 210 and the second circuit board 220 to reduce the entire circuit.
  • the capacitor 241 and the negative ion generator 242 correspond to the positions of the second flat plate 312, and the second flat plate 312 avoids the capacitor 241 and the negative ion generator 242, and the silicon controlled rectifier 244 and the second concave portion arranged on the circuit board frame 300 Corresponding to the position of 313 , the second recess 313 avoids the thyristor 244 .
  • the arrangement of the second recessed portion 313 is similar to that of the aforementioned recessed portion, and will not be repeated here.
  • the first circuit board 210 is also provided with heating element connection terminals, negative ion generator connection terminals, water ion generator connection terminals, thermistor connection terminals and other components, which can be located in the projection area or in the first area. .
  • the specific arrangement position of each element is not limited.
  • the capacitor 241 is arranged adjacent to the negative ion generator 242, but FIG. 5 only shows the arrangement position of each element in one of the embodiments , the components can also be arranged in other positions.
  • the capacitor 241 is connected to the first circuit board 210 through pins, and the negative ion generator 242 is connected to the first circuit board 210 through wires.
  • the transistor 243 is disposed on the second circuit board 220 , and its height is relatively small, and disposing it on the second circuit board 220 has little influence on the overall dimension of the circuit board assembly 200 along the axial direction.
  • components such as drivers are also arranged on the second circuit board 220 .
  • the first circuit board 210 is approximately circular, the maximum diameter d is in the range of 60mm ⁇ d ⁇ 65mm, the height h of the capacitor 241 is in the range of 22mm ⁇ h ⁇ 24mm, the first circuit board The range of the distance s between the 210 and the second circuit board 220 is s ⁇ 8mm, so as to meet the shortest safety distance and ensure that the motor wire can be passed between the two.
  • the first circuit board 210 is also provided with a wire clamping slot 211 for fixing the position of the wire harness connected to the circuit board assembly 200 to avoid internal wiring confusion.
  • the circuit board frame 300 is embedded with a heat sink 620 communicating with the air duct, and the heat sink 620 is in contact with the transistor 243 .
  • the heat dissipated can be dissipated into the air duct through the heat sink 620 to prevent the transistor 243 from overheating and malfunctioning.
  • the interior of the circuit board frame 300 is hollow to form a cavity 362 , and the lower end has an opening 361 .
  • the cavity 362 communicates with the inside of the handle 700, and the cavity 362 is a part of the air duct.
  • the heat sink 620 is preferably a metal sheet with better thermal conductivity, and a slot hole vertically penetrated can be provided on the circuit board frame 300, and it is snapped into the slot hole so that the bottom thereof communicates with the cavity 362, or heat dissipation
  • the piece 620 and the circuit board frame 300 can also be integrally formed by injection molding.
  • the first plate 311 is located under the transistor 243
  • the heat sink 620 is disposed on the first plate 311
  • the heat sink 620 is attached to the bottom of the transistor 243 .
  • the circuit board frame 300 is fixedly connected to the housing 100 , and the circuit board assembly 200 is fixedly connected to the circuit board frame 300 , so as to realize the fixed installation of the circuit board assembly 200 .
  • the circuit board assembly 200 is fixedly connected to the circuit board frame 300 through threaded fasteners such as screws.
  • the first circuit board 210 is fixedly connected to the circuit board holder 300
  • the second circuit board 220 is also fixedly connected to the circuit board holder 300 .
  • the circuit board assembly 200 and the circuit board holder 300 may also be fixedly connected to the housing 100 respectively, specifically, the second circuit board 220 and the first circuit board 210 are respectively fixedly connected to the housing 100 .
  • the circuit board assembly 200 can also be fixedly connected with the end cover 120 to achieve fixed installation.
  • the circuit board frame 300 includes a fixing column 320 protruding toward the circuit board assembly 200, and the fixing column 320 is connected to the circuit board assembly 200.
  • the first circuit board 210 is fixedly connected, and the projection of the fixing column 320 on the first circuit board 210 along the axial direction of the casing 100 is located within the range of the first circuit board 210 .
  • the fixing column 320 can be located within the scope of the circuit board assembly 200 in the radial direction, and will not be located outside the circuit board assembly 200 beyond the circuit board assembly 200 , so that the size of the circuit board assembly 200 in the radial direction will not be increased.
  • the fixing column 320 is arranged at a position close to the edge on the circuit board frame 300, and a first notch 221 is provided at a corresponding position on the second circuit board 220 to avoid the fixing column 320, and the fixing column 320 and the first circuit board 210 Attached by threaded fasteners.
  • a plurality of fixing posts 320 are provided, and the plurality of fixing posts 320 are evenly distributed along the circumferential direction, so as to enhance the stability of the fixed connection.
  • the fixing column 320 extends axially along the housing 100 , and in other embodiments, the extending direction of the fixing column 320 may also be inclined relative to the axial direction of the housing 100 .
  • the circuit board holder 300 further includes a plurality of positioning pieces 330 protruding toward the circuit board assembly 200, each positioning piece 330 is located on the radially outer side of a fixing column 320, and the first circuit board The sidewalls of the 210 resist against a plurality of positioning pieces 330 .
  • the first circuit board 210 can be positioned by the positioning member 330, so as to prevent its placement position from being shifted.
  • the positioning member 330 is in the shape of a plate, its height is greater than that of the fixing column 320, and matches the shape and size of the outer wall of the first circuit board 210.
  • the first circuit board 210 can be in the shape of a circular plate.
  • the positioning member 330 is configured as an arc-shaped plate with a diameter slightly larger than that of the first circuit board 210 , and there is a clearance fit between the two.
  • the circuit board assembly 200 , the circuit board frame 300 , and the heating component 400 are sequentially arranged along the axial direction, the circuit board frame 300 is fixedly connected to the heating component 400 , and the heating component 400 is fixed to the housing 100 connect.
  • the circuit board frame 300 separates the circuit board assembly 200 from the air duct, and the air flow enters from the air inlet net 710 on the handle 700, flows to the left, and enters the air in the circuit board frame 300 from the connection between the circuit board frame 300 and the handle 700. cavity 362 , and flows downward through the heating element 400 , and when the heating element 400 works and generates heat, hot air can be blown out.
  • the airflow flowing from the handle 700 into the main body 10 may first pass through the circuit board assembly 200, then pass through the circuit board frame 300, and then flow through components such as heating components before flowing out.
  • FIG. 8 is a schematic structural diagram of the heating component of the hair drying appliance in FIG. 1
  • FIG. 11 is a partial structural schematic diagram of the heating component in FIG. 8
  • the heating component 400 includes an outer cylinder 410 and an inner cylinder 420 , the outer cylinder 410 is sheathed outside the inner cylinder 420 , the outer cylinder 410 is fixedly connected to the housing 100 , and the circuit board frame 300 and the inner cylinder 420 are both fixedly connected to the outer cylinder 410 .
  • a heating wire 430 is disposed between the inner cylinder 420 and the outer cylinder 410 , and a water ion generator 500 is disposed inside the inner cylinder 420 .
  • Setting the water ionizer 500 inside the inner cylinder 420 can make full use of the space inside the inner cylinder 420 and increase the compactness of the structure.
  • the heating wire 430 is disposed between the inner cylinder 420 and the outer cylinder 410 , and the inner cylinder 420 is used for heat insulation, so that the performance of the water ionizer 500 is not easily affected.
  • Fig. 9 is a schematic structural diagram of the inner cylinder and other components of the heating component in Fig. 8
  • Fig. 10 is a structural schematic diagram of the outer cylinder of the heating component in Fig. 8 .
  • the interior of the inner cylinder 420 is hollow, with an open bottom and a hollow top, so that the airflow entering the cavity 362 can flow into the inner cylinder 420 .
  • the outer cylinder 410 is hollow inside, with an open top, a central air outlet hole 417 at the center of the end plate at the bottom, and an annular outer ring air outlet hole 416 at the outer ring.
  • the bottom of the housing 100 has an opening, and the end plate of the outer cylinder 410 is exposed from the opening at the bottom of the housing 100 .
  • the inner cylinder 420 is clamped with the outer cylinder 410 , for example, the inner wall of the end plate of the outer cylinder 410 is provided with a ring-shaped second locking groove 415 , and the bottom end of the inner cylinder 420 is locked into the second locking groove 415 in a circle.
  • the outer cylinder 410 is clamped with the housing 100.
  • the upper bottom of the outer cylinder 410 is provided with an annular third engaging groove 418
  • the upper bottom of the outer cylinder 410 is provided with an annular hook 110, and the hook 110 engages into the third card slot 418.
  • the outer wall of the side plate of the outer cylinder 410 is further provided with limiting ribs extending in the axial direction, a first limiting groove 412 is defined between the two limiting ribs, and the inner wall of the housing 100 is correspondingly provided with There are protruding ribs (omitted in the figure), during installation, the protruding ribs on the inner wall of the housing 100 are inserted into the first limiting groove 412 to limit the position, so as to prevent the circumferential rotation between the two.
  • the outer cylinder 410 and the circuit board frame 300 are also connected and fixed by buckles.
  • the outer wall of the side plate of the outer cylinder 410 is provided with a first card groove 411, and the corresponding position on the circuit board frame 300 is provided with a block 351.
  • the block 351 is snapped into the first slot 411 .
  • multiple sets of matching locking blocks 351 and first locking slots 411 are provided along the circumference to enhance the stability of the fixed connection.
  • a sealing ring 640 is embedded in the top circle of the outer cylinder 410 to enhance the sealing with the circuit board frame 300 .
  • Part of the airflow entering the cavity 362 from the handle 700 flows into the interior from the top of the inner cylinder 420, flows through the water ionizer 500, and is blown out from the central air outlet 417 with water ions, and the other part flows into the inner cylinder 420 and the outer cylinder 410 Between them, it flows through the heating wire 430 and blows out from the outlet hole 416 of the outer ring.
  • the heating component 400 further includes a temperature control device and a wire 460
  • the temperature control device includes a temperature controller 451 and a fuse 452
  • the temperature controller 451 and the fuse 452 are electrically connected.
  • the wire 460 passes through the inner cylinder 420 and the circuit board frame 300 in sequence and then connects with the circuit board assembly 200 .
  • the heating assembly 400 , the temperature control device and the circuit board assembly 200 are electrically connected in sequence to form a circuit.
  • the fuse 452 and the external components are electrically connected through wires 460 , and the wires 460 are arranged inside the inner cylinder 420 .
  • Arranging the wire 460 inside the inner cylinder 420 can make reasonable use of the space inside the inner cylinder 420 without increasing the radial dimension, making the structure more compact.
  • the wire 460 will not be overheated when the heating wire 430 generates heat, so there is no need to additionally set heat insulating components such as mica sheets between the heating wire 430 and the wire 460, which not only reduces parts and reduces costs, This also results in a more compact structure.
  • the heating wire 430 , the circuit board assembly 200 , and the temperature control device are electrically connected clockwise end-to-end to form a loop.
  • the fuse 452 in the temperature control device is electrically connected to the heating wire 430 in the external component through the wire 460
  • the temperature controller 451 is electrically connected to the circuit board assembly 200 in the external component.
  • the heating wire 430 , the temperature control device, and the circuit board assembly 200 are electrically connected clockwise end-to-end to form a loop.
  • the fuse 452 in the temperature control device is electrically connected to the circuit board assembly 200 in the external component through the wire 460, and the temperature controller 451 is electrically connected to the heating wire 430 in the external component.
  • the heating wire 430 includes a first heating layer 431 and a second heating layer 432 , both of which are electrically connected, and arranged along the radial direction of the inner cylinder 420 and the outer cylinder 410 . The heating efficiency can be improved by arranging double heating layers.
  • the second heating layer 432 is electrically connected to the fuse 452 through a wire 460, and the first heating layer 431 is electrically connected to the circuit board assembly 200; in the embodiment shown in Figure 15, the first heating layer 431 It is electrically connected with the temperature controller 451 , and the second heating layer 432 is electrically connected with the circuit board assembly 200 .
  • the circuit board frame 300 includes a protective wire tube 341 protruding toward the heating element 400, and the wire 460 passes through The grommet 341 is then connected to the circuit board assembly 200 .
  • the wire protection tube 341 can limit the wires 460, gather them together, and avoid internal wiring confusion.
  • the circuit board frame 300 also includes a second wire protection tube 343. After the wiring harness of the motor 720 in the handle 700 is inserted into the circuit board frame 300 through the connection between the circuit board frame 300 and the handle 700, it passes through the second wire protection tube upwards.
  • the tube 343 is connected to the circuit board assembly 200.
  • a wire plug is provided in the above-mentioned wire protection tube 341 and the second wire protection tube 343, and a through hole is provided on the wire plug for the wire to pass through. Sealing, so that the airflow in the cavity 362 can only flow downward to the heating element 400 .
  • the wire plug can be made of materials such as rubber or silica gel, and is fixed by interference fit or bonding with the hole wall of the wire protection tube. Referring to Fig. 4, Fig. 7 and Fig.
  • the wire protection tube 341 extends into the cavity 362, and its bottom end is against the end plate at the top of the inner cylinder 420, so that the inner cylinder 420 can be stably locked in the second slot 415 and is not easy to shake.
  • the outer wall of the inner cylinder 420 is provided with an inwardly recessed receiving groove 422 , and the temperature controller 451 is disposed in the receiving groove 422 .
  • Arranging it in the receiving groove 422 can make reasonable use of the space in the thick part of the inner cylinder 420 , and there is no need to provide additional space for accommodating the longer thermostat 451 .
  • the area corresponding to the receiving groove 422 on the inner side wall of the inner cylinder 420 protrudes inward to form the protruding portion 423 . Making the inner wall protrude inward can make up for the decrease in strength of the inner cylinder 420 caused by digging out the receiving groove 422 on the outer wall of the inner cylinder 420 .
  • Fig. 12 is a schematic structural diagram of the water ion generator in Fig. 11 . Furthermore, a magnetic piece 630 is provided at the bottom of the protruding part 423, and the magnetic piece 630 is used for being attracted to the magnet on the air nozzle, so that the air nozzle is fixedly installed at the bottom of the main body 10 of the hair drying appliance to change the air outlet effect.
  • the tuyere can be selected from any one in the prior art, and there is no limitation here.
  • the magnetic component 630 is clamped on the end plate of the outer cylinder 410 , and at the same time, the two ends are held against by the protruding portion 423 and the end plate of the outer cylinder 410 to realize stable installation.
  • the inner wall of the end plate of the outer cylinder 410 is provided with a first protrusion 413 and a second protrusion 414 , and the first protrusion 413 is located radially outside the second protrusion 414 .
  • the magnetic piece 630 is in the shape of a ring, and the magnetic piece 630 is stuck between the first protrusion 413 and the second protrusion 414, and the bottom end of the protruding part 423 is against the magnetic part 630, so as to prevent the protruding part 423 from the first
  • the protrusion 413 is separated from the second protrusion 414 .
  • the water ion generator 500 is located above the magnetic member 630 and is fixedly connected with the inner cylinder 420 .
  • a second fixing column 425 is provided on the inner side wall of the inner cylinder 420, and the water ionizer 500 is fixed on the second fixing column 425 through a threaded fastener.
  • the water ion generator 500 includes an emitting needle 510 and an emitting needle holder 520, both of which are fixedly connected to emit water ions through the emitting needle 510, and the emitting needle holder 520 is fixed on the second fixing column 425 through a threaded fastener.
  • the firing needle holder 520 is provided with a third notch 521 for avoiding the protruding portion 423 .
  • the launching needle frame 520 is also provided with a wire slot 522 , and the aforementioned wire 360 passes through the wire slot 522 and then extends into the wire protection tube 341 on the circuit board frame 300 .
  • a limiting plate 424 is provided on the inner wall of the inner cylinder 420, and a second limiting groove 523 is correspondingly provided on the firing needle holder 520, and the limiting plate 424 is snapped into the second limiting groove 523 for limiting.
  • FIG. 13 is a schematic structural diagram of the magnetic component and the nutrient box in an embodiment of the present invention.
  • a nutrient box 650 is provided at the end of the inner cylinder 420 , the nutrient box 650 is fixed in a similar manner to the magnetic piece 630 , and is also clamped between the extension 423 and the end plate of the outer cylinder 410 .
  • the nutrient substance box 650 is provided with nutrient substances, which can maintain and repair the hair.
  • Nutrients stored in the nutrient box 650 may be substances such as collagen, vitamins, or essential oils. Nutrients may be in block form, or may be in powder form wrapped in non-woven fabric.
  • both the nutrient box 650 and the magnetic piece 630 are ring-shaped, and the ratio m of the central angle of the area occupied by the magnetic piece 630 to the central angle of the area occupied by the nutrient box 650 is in the range of 1.5 ⁇ m ⁇ 2. In this way, it can be ensured that the area of the magnetic member 630 is sufficient, and there is sufficient magnetic attraction between the tuyere and the tuyere so that the tuyere will not fall off, and at the same time, enough nutrients can be blown out.
  • FIG. 8 , FIG. 9 and FIG. 11 the structures of other components in the heating assembly 400 are described as follows.
  • An outer fixing plate 441 and an inner fixing plate 442 are fixed on the inner cylinder 420 , and the outer fixing plate 441 is located radially outside the inner fixing plate 442 .
  • the inner cylinder 420 is provided with a mounting groove 421 , and both the outer fixing plate 441 and the inner fixing plate 442 are snapped into the installing groove 421 .
  • the heating wire 430 is wound on the outer fixing plate 441 and the inner fixing plate 442 .
  • the first heating layer 431 is wound on the outer fixing plate 441
  • the second heating layer 432 is wound on the inner fixing plate 442 .
  • the outer fixing plate 441 is provided with sawtooth 4411 , and the first heating layer 431 is wound on the sawtooth 4411 , similarly, the inner fixation plate 442 is also provided with sawtooth.
  • a heat insulating cylinder 443 is provided between the outer fixing plate 441 and the inner fixing plate 442 to separate the first heating layer 431 from the second heating layer 432, so as to prevent the first heating layer from colliding with the hair dryer. 431 is in contact with the second heat generating layer 432 to be short-circuited.
  • the outer fixing plate 441 is provided with a second notch 4412 , and the heat insulation cylinder 443 is stuck in the second notch 4412 .
  • a notch is also provided on the inner fixing plate 442 for snapping in the heat insulation cylinder 443 .
  • the heat insulating sheet 470, the outer fixing plate 441 and the inner fixing plate 442 can all be made of mica.
  • a touch screen assembly 610 is also provided above the circuit board assembly 200, which includes components such as a touch screen and a circuit board, and UI interaction can be realized by touching the touch screen.
  • an end cover 120 is fixed above the housing 100, and the two are snap-fitted together.
  • the touch screen is fixed on the end cover 120, and the two can be welded by ultrasonic waves.
  • the touch screen is made of transparent PC, and the surface is sprayed with laser engraved patterns and interactive buttons.
  • the circuit board of the touch screen assembly 610 is connected to the end cap 120 through threaded fasteners, the circuit board is electrically connected to the circuit board assembly 200 through a wire harness, and is electrically connected to the touch screen through a wire harness.
  • a buffer is provided between the circuit board of the touch screen assembly 610 and the circuit board assembly 200 for buffering.
  • the buffer foam can be pasted on the bottom of the circuit board of the touch screen assembly 610 .

Abstract

本发明涉及一种毛发干燥用具，包括：手柄，所述手柄内设置有电机；外壳，所述外壳与所述手柄连接；线路板组件，所述线路板组件设置于所述外壳内，所述线路板组件上设有多个元件，线路板架，所述线路板架设置于所述外壳内，所述线路板组件与所述线路板架沿所述外壳的轴向排布，所述线路板架上设有朝远离所述线路板组件的方向凹陷的凹陷部，至少部分所述元件伸入所述凹陷部。该毛发干燥用具的结构更加紧凑，尺寸更小，更加便于日常收纳，并且便于外出携带。

Description

毛发干燥用具 技术领域
本发明涉及毛发干燥技术领域，特别是涉及毛发干燥用具。
背景技术
通常，洗完头发后，如果让头发上的水分自然蒸发，需要等待较长时间，而吹风机能够加速头发干燥，缩短等待时间，还能为头发造型，为我们的日常生活带来了极大的便利。然而，相关技术中，一些吹风机的尺寸较大，在收纳时较为不便，并且不便于外出携带。
发明内容
基于此，本发明提出一种毛发干燥用具，其结构更加紧凑，尺寸更小，更加便于日常收纳，并且便于外出携带。
毛发干燥用具，包括：
手柄，所述手柄内设置有电机；
外壳，所述外壳与所述手柄连接；
线路板组件，所述线路板组件设置于所述外壳内，所述线路板组件上设有多个元件，
线路板架，所述线路板架设置于所述外壳内，所述线路板组件与所述线路板架沿所述外壳的轴向排布，所述线路板架上设有朝远离所述线路板组件的方向凹陷的凹陷部，至少部分所述元件伸入所述凹陷部。
在其中一个实施例中，设所述元件沿所述轴向延伸的垂直距离为所述元件 的高度，沿所述轴向的投影位于所述凹陷部内的至少部分所述元件的高度大于投影位于所述凹陷部外的所述元件的高度。
在其中一个实施例中，所述线路板架包括第一平板与第二平板，沿所述轴向，所述第二平板与所述线路板组件的间距大于所述第一平板与所述线路板组件的间距，至少部分所述元件沿所述轴向的投影位于所述第二平板上。
在其中一个实施例中，所述第一平板与所述第二平板之间光滑过渡，所述毛发干燥用具包括风道，所述线路板架将所述线路板组件与所述风道分隔，气流沿所述外壳的径向流入所述线路板架的远离所述线路板组件的一侧，并沿所述外壳的轴向流出。
在其中一个实施例中，所述线路板组件包括沿所述轴向间隔设置的第一线路板与第二线路板，所述第二线路板位于所述第一线路板与所述线路板架之间，多个所述元件中，部分设置于所述第一线路板上，部分设置于所述第二线路板上，所述第二线路板沿所述轴向的投影与所述第一线路板沿所述轴向的投影至少部分重合。
在其中一个实施例中，设所述元件沿所述轴向延伸的垂直距离为所述元件的高度，沿所述轴向，所述第二线路板投影至所述第一线路板上的投影区域外的区域设为第一区域，设置于所述第一线路板上的所述元件中，所述第一区域内的至少部分所述元件的高度大于所述投影区域内的所述元件的高度。
在其中一个实施例中，高度不小于所述第一线路板与所述第二线路板的间距的所述元件设置于所述第一线路板上，且位于所述第一区域内。
在其中一个实施例中，设所述元件沿所述轴向延伸的垂直距离为所述元件的高度，沿所述轴向，所述第二线路板投影至所述第一线路板上的投影区域外的区域设为第一区域，设置于所述第一线路板上所述第一区域内的至少部分所 述元件的高度大于设置于所述第二线路板上的所述元件的高度。
在其中一个实施例中，设置于所述第一线路板上的所述元件中，位于所述第一区域内的至少部分所述元件伸入所述凹陷部。
在其中一个实施例中，所述线路板架包括第一平板与第二平板，沿所述轴向，所述第二平板与所述线路板组件的间距大于所述第一平板与所述线路板组件的间距，所述第二线路板上设置的至少部分所述元件与所述第一平板贴合，所述第一线路板上设置的至少部分所述元件与所述第二平板贴合。
在其中一个实施例中，所述第一线路板上至少设置有电容与负离子发生器，且所述电容与所述负离子发生器位于所述第一区域内。
在其中一个实施例中，所述第二线路板上至少设有晶体管。
在其中一个实施例中，所述毛发干燥用具包括风道，所述线路板架上嵌设有与所述风道连通的散热件，所述散热件与所述晶体管接触。
在其中一个实施例中，所述线路板组件与所述线路板架固定连接。
在其中一个实施例中，所述线路板架包括朝所述线路板组件伸出的固定柱，所述固定柱与所述第一线路板固定连接，所述固定柱沿所述轴向的投影位于所述第一线路板范围内。
在其中一个实施例中，所述线路板架包括朝所述线路板组件伸出的多个定位件，每个所述定位件连接于一个所述固定柱的外侧，所述第一线路板的侧壁与多个所述定位件抵持。
在其中一个实施例中，还包括发热组件，所述线路板组件、所述线路板架、所述发热组件沿所述轴向依次设置，所述线路板架与所述发热组件固定连接，所述发热组件与所述外壳固定连接。
在其中一个实施例中，所述发热组件包括外筒与内筒，所述外筒与所述线 路板架固定连接，所述外筒套设于所述内筒的外部，所述内筒与所述外筒之间设置有发热丝，所述内筒的内部设置有水离子发生器。
在其中一个实施例中，所述发热组件还包括控温器件与导线，所述控温器件包括相互之间电连接的温控器与保险丝，所述线路板组件、所述发热丝、所述控温器件三者之间依次电连接形成回路，以所述线路板组件与所述发热丝作为外部部件，所述保险丝与所述外部部件之间通过所述导线电连接所述导线设置于所述内筒的内部。
在其中一个实施例中，所述内筒的外侧壁上设有朝内凹陷的容纳槽，所述温控器设置于所述容纳槽内。
在其中一个实施例中，所述内筒的内侧壁上对应所述容纳槽的区域朝内伸出以形成伸出部。
在其中一个实施例中，还包括磁性件，所述外筒包括外筒侧板与外筒端板，所述外筒侧板沿径向设置于所述内筒的外侧，所述外筒端板位于所述伸出部的外端，所述磁性件卡于所述伸出部与所述外筒端板之间。
在其中一个实施例中，还包括营养物质盒，所述营养物质盒与所述磁性件均卡于所述伸出部与所述外筒端板之间。
在其中一个实施例中，所述营养物质盒与所述磁性件均呈环形，且所述磁性件所占范围的圆心角与所述营养物质盒所占范围的圆心角的比值m的范围为.1.5≤m≤2。
在其中一个实施例中，所述线路板架包括朝所述发热组件伸出的护线管，所述导线穿过所述护线管。
在其中一个实施例中，所述线路板架上靠近所述发热组件的一侧具有开口，所述线路板架的内部中空以形成腔体，所述护线管伸入所述腔体内，且所述护 线管的端部抵持于所述内筒。
在其中一个实施例中，所述第一线路板的最大直径d的范围为60mm≤d≤65mm，所述第一线路板与所述第二线路板的间距s的范围为s≥8mm，所述电容的高度h的范围为22mm≤h≤24mm。
上述毛发干燥用具，线路板架上设置有朝远离线路板组件的方向凹陷的凹陷部，凹陷部能对线路板组件上设置的至少部分元件形成避让，使其伸入凹陷部，如此，在轴向上空间能被充分利用，使线路板组件与线路板架在该轴向上分布的更加紧凑，线路板组件与线路板架的整体尺寸也因此更小，从而使毛发干燥用具的尺寸也更小，更加便于日常收纳，并且便于外出携带。
附图说明
图1为本发明一实施例中的毛发干燥用具的整体结构示意图；
图2为图1中毛发干燥用具的剖视图；
图3为图1中毛发干燥用具的线路板、线路板架与发热组件的结构示意图；
图4为图1中毛发干燥用具的线路板、线路板架与发热组件等部件的剖视图；
图5为图1中毛发干燥用具的线路板的结构示意图；
图6为图1中毛发干燥用具的线路板架的结构示意图；
图7为图6中毛发干燥用具的线路板架的剖视图；
图8为图1中毛发干燥用具的发热组件的结构示意图；
图9为图8中发热组件的内筒等部件的结构示意图；
图10为图8中发热组件的外筒的结构示意图；
图11为图8中发热组件的部分结构示意图；
图12为图11中水离子发生器的结构示意图；
图13为本发明一实施例中的磁性件与营养物质盒的结构示意图；
图14为本发明一实施例中的发热丝、控温器件与线路板组件的电连接方式；
图15为本发明另一实施例中的发热丝、控温器件与线路板组件的电连接方式。
附图标记：
毛发干燥用具主体10、外壳100、卡钩110、端盖120；
线路板组件200、第一线路板210、卡线槽211、第二线路板220、第一缺口221、支撑件230、电容241、负离子发生器242、晶体管243、可控硅244；
线路板架300、第一平板311、第二平板312、第二凹陷部313、固定柱320、定位件330、护线管341、第二护线管343、卡块351、开口361、腔体362；
发热组件400、外筒410、第一卡槽411、第一限位槽412、第一凸起413、第二凸起414、第二卡槽415、外圈出风孔416、中心出风孔417、第三卡槽418、
内筒420、安装槽421、容纳槽422、伸出部423、限位板424、第二固定柱425、
发热丝430、第一发热层431、第二发热层432、外固定板441、锯齿4411、第二缺口4412、内固定板442、隔热筒443、温控器451、保险丝452、热敏电阻453、导线460、隔热片470；
水离子发生器500、发射针510、发射针架520、第三缺口521、过线槽522、第二限位槽523；
触摸屏组件610、散热件620、磁性件630、密封圈640、营养物质盒650；
手柄700、进风网710、电机720。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。 第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
参阅图1与图2，图1为本发明一实施例中的毛发干燥用具的整体结构示意图，图2为图1中毛发干燥用具的剖视图。本发明一实施例提供的毛发干燥用具包括毛发干燥用具主体10与手柄700，手柄700与毛发干燥用具主体10连接，二者的内腔连通形成风道。手柄700上设有进风网710，毛发干燥用具主体10上设有出风孔。手柄700的内部设有电机720，电机720转动使气流经进风网710流入风道内，并逐渐朝毛发干燥用具主体10流动，最终从出风孔流出，从而实现毛发干燥或造型。
参阅图2、图3、图6与图7，图3为图1中毛发干燥用具的线路板、线路板架与发热组件的结构示意图，图4为图1中毛发干燥用具的线路板、线路板架与发热组件等部件的剖视图，图6为图1中毛发干燥用具的线路板架的结构示意图，图7为图6中毛发干燥用具的线路板架的剖视图。毛发干燥用具主体10包括外壳100、线路板组件200与线路板架300等部件。外壳100与手柄700固定连接。线路板组件200与线路板架300沿外壳100的轴向排布于外壳100的内部。通过外壳100将其内部的这些部件与外界隔开，从而形成保护，外壳100优选为强度较高的材质。线路板组件200上设置有多个元件，线路板架300上设有朝远离线路板组件200的方向凹陷的凹陷部，凹陷部能对至少部分元件形成避让，使其伸入凹陷部。如此，在外壳100轴向上，相当于线路板组件200与线路板架300凹凸配合，可以使沿外壳100轴向的空间利用更充分，线路板组件200与线路板架300沿外壳100轴向分布的更加紧凑，从而使毛发干燥用具沿外壳100轴向的尺寸更小，更加便于日常收纳，并且便于外出携带。为了方便说明与理解，下文中将以各附图的方位对各部件的位置关系进行描述，但 这种方位不作为对各部件位置关系的限定。另外，将线路板组件200上的元件沿外壳100轴向延伸的垂直距离设定为元件的高度，下文中出现的沿轴向均是指沿外壳100的轴向。
在一些实施例中，凹陷部位于线路板架300上远离手柄700的一侧，即在图2所示视角下，凹陷部位于线路板架300的左端。
在一些实施例中，线路板组件200上伸出的所有元件均伸入凹陷部内。例如，可以设置一个较大的凹陷部，使所有元件沿轴向的投影均位于凹陷部内。或者，也可以设置多个凹陷部，分别用于避让不同区域的元件。
在另一些实施例中，线路板组件200上向下伸出的部分元件伸入凹陷部内，部分元件位于凹陷部以外。即部分元件沿轴向的投影位于凹陷部内，部分元件沿轴向的投影位于凹陷部外。优选的，沿轴向的投影位于凹陷部内的至少部分元件的高度大于投影位于凹陷部外的元件的高度。具体的，在一些实施例中，沿轴向的投影位于凹陷部内的所有元件的高度均大于投影位于凹陷部外的元件的高度。或者，在另一些实施例中，沿轴向的投影位于凹陷部内的部分元件的高度大于投影位于凹陷部外的元件的高度，部分元件的高度小于或等于投影位于凹陷部外的元件的高度。使高度较大的元件尽量多的伸入凹陷部内，可以较大程度减小整体的轴向尺寸，高度较小的元件对于整体的轴向尺寸影响不大，可以位于凹陷部内，也可以位于凹陷部外。
在一些实施例中，若凹陷部的凹陷深度较大，元件可以完全伸入。全部伸入时，元件与凹陷部的底壁之间可能具有间隙，也可能接触。若凹陷部的凹陷深度较小，元件可能只有部分伸入，部分仍位于凹陷部外，但即使如此，亦能减小轴向的尺寸。
参阅图6与图7，在一些实施例中，线路板架300包括第一平板311与第二平板312，沿轴向，第二平板312与线路板组件200的间距大于第一平板311与线路板组件200的间距，即第二平板312处形成了前述的凹陷部，至少部分元件沿轴向的投影位于第二平板312所在区域。在另一些实施例中，凹陷部也可以通过曲面形成，例如，通过凹陷的球面来形成凹陷部。或者，还可以通过设置多边形凹槽来形成凹陷部，例如矩形槽。除了上述列举的几种形状，其他常 规的凹陷形状亦可。
如前所述，气流从手柄700上的进风网710进入风道，并流入毛发干燥用具主体10。线路板架300将线路板组件200与所述风道分隔位于线路板架300的两侧。优选的，气流沿外壳100的径向流入线路板架300的远离线路板组件200的一侧，并改变流动方向，沿外壳100的轴向流出，即此处风道发生了弯折。优选的，第一平板311与第二平板312之间通过曲面光滑过渡。二者的过渡区域可以对气流的流动方向进行引导，使气流的流动路径从沿外壳100径向流动平稳的过渡为沿外壳100轴向流动。与突然垂直改变流向相比，可以减小压力与速度损失。并且，由于存在凹陷部，导致线路板架300上远离线路板组件200的一侧的空间变小，如此，可以增大气流的压力与速度，对因为流向改变造成的压力与速度损耗进行补偿。第二平板312与线路板架300的侧壁之间也可以通过曲面光滑过渡。
参阅图4至图7，图5为图1中毛发干燥用具的线路板的结构示意图。在一些实施例中，线路板组件200包括第一线路板210与第二线路板220，二者沿轴向间隔设置。具体的，第一线路板210与第二线路板220之间设有与支撑件230，第二线路板220、第一线路板210均与支撑件230固定连接，例如，第二线路板220、第一线路板210分别固定于支撑件230的两端。同时，第二线路板220与第一线路板210通过支撑件230电连接。第二线路板220位于第一线路板210与线路板架300之间。多个元件中，部分设置于第一线路板210上，部分设置于第二线路板220上。第二线路板220沿外壳100轴向的投影与第一线路板210沿外壳100轴向的投影至少部分重合。若设置的元件的数量与尺寸不变，与设置一个线路板相比，设置两个线路板，且二者沿外壳100轴向的投影至少部分重合，可以减小线路板组件200的径向尺寸，从而减小整个毛发干燥用具主体10的径向尺寸。虽然与一个线路板相比，两个间隔设置的线路板会增加轴向尺寸，但与前述的在线路板架300上设置凹陷部进行避让的方式相结合，则能弱化甚至消除该劣势，从而使毛发干燥用具主体10径向与轴向的尺寸都尽量减小。具体的，第一线路板210与第二线路板220沿外壳100轴向的投影可以部分重合。或者，优选的，第二线路板220沿外壳100轴向的投影完全位于第一线路 板210范围内，例如图5所示实施例，如此，线路板组件200径向的最大尺寸即为第一线路板210的尺寸，可以尽量减小径向尺寸。
在一些实施例中，将第二线路板220沿轴向投影至第一线路板210上的投影区域外的区域设为第一区域，第一线路板210上设置的元件中，部分位于投影区域内，部分位于投影区域外(即第一区域内)。投影区域内的元件的高度应该小于第一线路板210与第二线路板220的间距，且二者的间距应保证最短安全距离，以免元件与第二线路板220间距过小而存在安全隐患。优选的，位于第一区域内的至少部分元件的高度大于位于投影区域内的元件的高度。例如，位于第一区域内的部分元件的高度大于位于投影区域内的元件的高度，部分元件的高度小于或等于位于投影区域内的元件的高度。或者，位于第一区域内的所有元件的高度均大于位于投影区域内的元件的高度。由于第一线路板210与第二线路板220的间距应该要不小于位于投影区域内的元件的高度，因此，将这些高度较大的元件尽量多的设置于投影区域外的第一区域内，高度较小的元件尽量多的设置于投影区域内时，第一线路板210与第二线路板220的间距无需设置的过大。如此，可以较大程度的减小线路板组件200沿轴向的整体尺寸。
优选的，高度大于或等于第一线路板210与第二线路板220的间距的元件设置于第一线路板210上，且位于第一区域内。在图5所示的实施例中，第一线路板210为圆形板，第二线路板220为具有缺口的异形板，缺口可以对上述的高度大于或等于第一线路板210与第二线路板220的间距的元件形成避让。当然，第二线路板220也可以为规则形状，例如圆形、椭圆形或多边形等，类似的，第一线路板210也可以为椭圆形或多边形等规则形状。另外，第二线路板220上缺口的位置也不做限制，只要能避让第一线路板210上设置的元件即可。
在一些实施例中，设置于第一线路板210上的元件中，位于第一区域内的至少部分元件的高度大于设置于第二线路板220上的元件的高度。例如，位于第一区域内的部分元件的高度大于第二线路板220上的元件的高度，部分元件的高度小于或等于位于第二线路板220上的元件的高度。或者，位于第一区域内的所有元件的高度大于位于第二线路板220上的元件的高度。也就是说，至 少部分高度较大的元件被设置于第一区域内，与将这些元件设置于第二线路板220上相比，本方案可以充分的利用第一线路板210与第二线路板220的间距，高度较大的元件中，位于第一线路板210与第二线路板220之间的这部分并不会增加整个线路板组件200沿轴向的尺寸，从而减小整个线路板组件200沿轴向的尺寸。对于第一线路板210上高度大于第一线路板210与第二线路板220的间距和第二线路板220上元件高度之和的这部分元件，可以减小其伸出至第二线路板220以外的距离。与将这些元件设置于投影区域内相比，无需因为在第一线路板210与第二线路板220之间设置了这些高度较大的元件而增大第一线路板210与第二线路板220的间距，从而能减小整个线路板组件200沿轴向的尺寸。综上，上述设置方式有利于较大程度减小线路板组件200沿轴向的整体尺寸。
进一步的，在一些实施例中，设置于第一线路板210上的元件中，位于第一区域内的至少部分元件伸入线路板架300上设置的凹陷部内。如前所述，高度较大的元件尽量位于第一区域内，使这部分元件伸入线路板架300上设置的凹陷部内，可以与凹陷部形成避让，从而较大程度的减小线路板组件200沿轴向的整体尺寸。
参阅图4，在一些实施例中，当线路板架300按照前述实施例的方式设置第一平板311与第二平板312时，第二线路板220上设置的至少部分元件与第一平板311贴合，第一线路板210上设置的至少部分元件与第二平板312贴合。具体的，第二线路板220上设置的部分元件与第一平板311贴合，或者所有元件都与第一平板311贴合。第一线路板210上设置的部分元件与第二平板312贴合，或者所有元件都与第二平板312贴合。如此，在线路板组件200与线路板架300安装完成后，在轴向上，第二线路板220和与其贴合的元件之间相互限位，第一线路板210和与其贴合的元件之间相互限位，可以使固定关系更加稳定。
参阅图5与图6，具体的，在一些实施例中，第一线路板210上设置有电容241、负离子发生器242与可控硅244等部件，电容241、负离子发生器242与可控硅244等部件均位于第一区域内。通常，电容241、负离子发生器242与可 控硅244的高度较大，将其设置于第一区域内，可以充分的利用第一线路板210与第二线路板220的间距来减小整个线路板组件200沿轴向的尺寸。具体的，电容241、负离子发生器242与第二平板312的位置对应，第二平板312对电容241、负离子发生器242进行避让，可控硅244与线路板架300上设置的第二凹陷部313的位置对应，第二凹陷部313对可控硅244进行避让。第二凹陷部313的设置方式与前述的凹陷部类似，此处不再赘述。此外，第一线路板210上还设置有发热组件连接端子、负离子发生器连接端子、水离子发生器连接端子、热敏电阻连接端子等部件，可以位于投影区域内，也可以位于第一区域内。需要说明的是，各个元件的具体排布位置不做限制，图5中，电容241与负离子发生器242相邻设置，但图5仅示出了其中一种实施例中各个元件的排布位置，各元件也可以排布于其他位置。在一些实施例中，电容241通过插脚插接于第一线路板210上，负离子发生器242通过导线连接于第一线路板210上。
在一些实施例中，第二线路板220上设有晶体管243，其高度较小，将其设置于第二线路板220上对线路板组件200沿轴向的整体尺寸的影响不大。此外，第二线路板220上还设置驱动等部件。在一个具体的实施例中，第一线路板210呈近似的圆板状，最大直径d的范围为60mm≤d≤65mm，电容241的高度h的范围为22mm≤h≤24mm，第一线路板210与第二线路板220的间距s的范围为s≥8mm，以满足最短安全距离，且保证二者之间能够穿设电机线。优选的，第一线路板210上还设有卡线槽211，用于固定连接至线路板组件200的线束的位置，避免内部走线混乱。
参阅图2、图5至图7，在一些实施例中，线路板架300上嵌设有与风道连通的散热件620，散热件620与晶体管243接触。晶体管243工作时，散发的热量可以经散热件620散发至风道内，以免晶体管243过热而出现故障。具体的，线路板架300的内部中空形成腔体362，且下端具有开口361。腔体362与手柄700内部连通，腔体362属于风道的一部分。散热件620优选为导热性较好的金属片，可以在线路板架300上设置沿竖直方向贯通的槽孔，将其卡入槽孔内，使其底部与腔体362连通，或者，散热件620与线路板架300也可以通过注塑一体成型。进一步的，在一些实施例中，第一平板311位于晶体管243的下方， 将散热件620设置于第一平板311处，使散热件620与晶体管243的底部贴合。
参阅图5至图7，在一些实施例中，线路板架300与外壳100固定连接，线路板组件200与线路板架300固定连接，从而实现对线路板组件200的固定安装。具体地，在一些实施例中，线路板组件200与线路板架300通过螺钉等螺纹紧固件固定连接。具体地，第一线路板210与线路板架300固定连接，当然，第二线路板220与线路板架300固定连接亦可。在另一些实施例中，线路板组件200与线路板架300也可以分别与外壳100固定连接，具体地，第二线路板220、第一线路板210二者分别与外壳100固定连接。或者，线路板组件200还可以与端盖120固定连接实现固定安装。
线路板组件200与线路板架300通过螺钉等螺纹紧固件固定连接时，优选地，在一些实施例中，线路板架300包括朝线路板组件200伸出的固定柱320，固定柱320与第一线路板210固定连接，固定柱320沿外壳100轴向在第一线路板210上的投影位于第一线路板210范围内。如此，可以使固定柱320在径向上位于线路板组件200的范围内，不会超出线路板组件200而位于线路板组件200之外，从而不会增加线路板组件200沿径向的尺寸。具体的，固定柱320设置于线路板架300上靠近边缘的位置，第二线路板220上对应位置处设置有第一缺口221，用以避让固定柱320，固定柱320与第一线路板210通过螺纹紧固件连接。优选的，设置有多个固定柱320，多个固定柱320沿周向均匀分布，以增强固定连接的稳定性。在一些实施例中，固定柱320沿外壳100轴向延伸，在另一些实施例中，固定柱320的延伸方向也可以相对于外壳100轴向倾斜。
优选的，在一些实施例中，线路板架300还包括朝线路板组件200伸出的多个定位件330，每个定位件330位于一个固定柱320的沿径向的外侧，第一线路板210的侧壁与多个定位件330抵持。在固定安装时，将线路板组件200放置于固定柱320上时，可以通过定位件330对第一线路板210进行定位，以免其放置位置发生偏移。具体的，定位件330呈板状，其高度大于固定柱320，与第一线路板210的外侧壁形状尺寸相匹配，如前所述，第一线路板210可以为圆板状，对应的，定位件330设置为弧形板，直径略大于第一线路板210，二者之间间隙配合。
参阅图2与图4，在一些实施例中，线路板组件200、线路板架300、发热组件400沿轴向依次设置，线路板架300与发热组件400固定连接，发热组件400与外壳100固定连接。线路板架300将线路板组件200与风道隔开，气流从手柄700上的进风网710进入后，向左流动，从线路板架300上与手柄700连通处进入线路板架300内的腔体362，并向下流动经发热组件400流出，当发热组件400工作发热时，便能吹出热风。气流流向除了采用上述方式，在另一些实施例中，从手柄700流入主体10的气流也可以先经过线路板组件200，再经过线路板架300，再流经发热组件等部件后流出。
具体的，参阅图2、图4、图8与图11，图8为图1中毛发干燥用具的发热组件的结构示意图，图11为图8中发热组件的部分结构示意图。发热组件400包括外筒410与内筒420，外筒410套设于内筒420的外部，外筒410与外壳100固定连接，线路板架300、内筒420均与外筒410固定连接。内筒420与外筒410之间设置有发热丝430，内筒420的内部设置有水离子发生器500。将水离子发生器500设置于内筒420内部，可以充分利用内筒420内部的空间，增加结构的紧凑度。并且，发热丝430设置于内筒420与外筒410之间，通过内筒420进行隔热，不易影响水离子发生器500的性能。
具体的，参阅图2至图4、图8至图10，图9为图8中发热组件的内筒等部件的结构示意图，图10为图8中发热组件的外筒的结构示意图。内筒420的内部中空，底部为敞口状，顶部为镂空状，以使进入腔体362的气流可以流入内筒420内部。外筒410的内部中空，顶部为敞口状，底部的端板上中心位置设有中心出风孔417，外圈处设有环状的外圈出风孔416。外壳100的底部具有开口，外筒410的端板从外壳100底部的开口处露出。内筒420与外筒410卡接，例如，外筒410的端板内壁上设有呈环状的第二卡槽415，内筒420的底端一圈卡入第二卡槽415内。外筒410与外壳100卡接，例如，外筒410上底端处设有呈环状的第三卡槽418，外壳100上底端处设有呈环状的卡钩110，卡钩110卡入第三卡槽418内。优选的，外筒410的侧板的外壁上还设有沿轴向延伸的限位筋条，两个限位筋条之间限定出第一限位槽412，外壳100的内侧壁上对应设有凸起的筋条(图中省略)，安装时，外壳100内侧壁上凸起的筋条插入 第一限位槽412进行限位，以免二者之间发生周向转动。外筒410与线路板架300间也通过卡扣连接固定，例如，外筒410的侧板的外壁上设有第一卡槽411，线路板架300上对应位置处设有卡块351，卡块351卡入第一卡槽411内。优选的，沿周向设置多组相匹配的卡块351与第一卡槽411，以增强固定连接的稳定性。优选的，外筒410的顶端一圈还嵌入有密封圈640，用于增强与线路板架300间的密封性。从手柄700进入腔体362的气流一部分从内筒420顶部流入其内部，流经水离子发生器500，并携带水离子一起从中心出风孔417吹出，另一部分流入内筒420与外筒410之间，流经发热丝430，并从外圈出风孔416吹出。
参阅图4、图7与图11，在一些实施例中，发热组件400还包括控温器件与导线460，控温器件包括温控器451与保险丝452，温控器451与保险丝452电连接。导线460依次穿过内筒420与线路板架300后与线路板组件200连接，发热组件400、控温器件与线路板组件200三者之间依次电连接以形成回路。以发热组件400与线路板组件200作为控温器件以外的外部部件，则控温器件中，保险丝452与外部部件之间通过导线460实现电连接，导线460设置于内筒420内部。将导线460设置于内筒420内部，可以合理利用内筒420内部的空间，不会增加径向尺寸，使结构更加紧凑。并且，由于内筒420的隔热，发热丝430发热时不会使导线460过热，因此无需在发热丝430与导线460之间另外设置云母片等隔热部件，不仅减少了部件降低了成本，还能因此使结构更加紧凑。具体地，参阅图14，在一些实施例中，发热丝430、线路板组件200、控温器件呈顺时针首尾电连接以形成回路。其中，控温器件中的保险丝452与外部部件中的发热丝430通过导线460电连接，温控器451与外部部件中的线路板组件200电连接。或者，参阅图15，在一些实施例中，发热丝430、控温器件、线路板组件200呈顺时针首尾电连接以形成回路。其中，控温器件中的保险丝452与外部部件中的线路板组件200通过导线460电连接，温控器451与外部部件中的发热丝430电连接。进一步地，在一些实施例中，发热丝430包括第一发热层431与第二发热层432，二者电连接，且二者沿内筒420与外筒410的径向排布。通过设置双层发热层，可以提高加热效率。在图14所示实施例中，第二发热层432与保险丝452通过导线460电连接，第一发热层431与线路板组件 200电连接；在图15所示实施例中，第一发热层431与温控器451电连接，第二发热层432与线路板组件200电连接。
若选用图15所示的连接方式，参阅图2、图4与图7，优选的，在一些实施例中，线路板架300包括朝发热组件400伸出的护线管341，导线460穿过护线管341后连接至线路板组件200。护线管341可以对导线460进行限位，将其集合在一起，避免内部走线混乱。类似的，线路板架300还包括第二护线管343，手柄700中电机720的线束经线路板架300与手柄700连通处伸入线路板架300内后，朝上穿过第二护线管343，并连接至线路板组件200。优选的，在上述的护线管341与第二护线管343内均设有线塞，线塞上设有通孔以供导线穿过，通过线塞将过线处封堵，提高风道的密封性，使腔体362内的气流只能朝下流动至发热组件400。线塞可以选用橡胶或硅胶等材质，与护线管的孔壁过盈配合或粘接固定。参阅图4、图7与图10，优选的，在一些实施例中，护线管341伸入腔体362内，且其底端抵持于内筒420顶部的端板上，从而使内筒420能稳定的卡于第二卡槽415内，不易发生晃动。
参阅图9与图11，内筒420的外侧壁上设有朝内凹陷的容纳槽422，温控器451设置于容纳槽422内。将其设置于容纳槽422内，可以合理利用内筒420壁厚部分的空间，无需再另外设置空间来容纳长度较大的温控器451。进一步的，内筒420的内侧壁上对应容纳槽422的区域朝内伸出以形成伸出部423。使该处的内壁朝内凸出，可以补足由于在内筒420的外侧壁挖出容纳槽422而造成的内筒420强度降低。
参阅图4、图9至图12，图12为图11中水离子发生器的结构示意图。进一步的，在伸出部423的底部还设有磁性件630，磁性件630用于与风嘴上的磁铁吸附，以在毛发干燥用具主体10的底端固定安装风嘴，改变出风效果。风嘴可以选用现有技术中任意一种，此处不做限制。磁性件630卡于外筒410的端板上，同时，两端分别被伸出部423与外筒410的端板抵持，以实现稳定的安装。具体的，外筒410的端板内壁上设有第一凸起413与第二凸起414，第一凸起413沿径向位于第二凸起414的外侧。磁性件630呈圆环状，磁性件630卡于第一凸起413与第二凸起414之间，且伸出部423的底端抵持于磁性件630， 以免伸出部423从第一凸起413与第二凸起414之间脱出。
另外，水离子发生器500位于磁性件630的上方，并与内筒420固定连接。具体的，内筒420的内侧壁上设有第二固定柱425，水离子发生器500通过螺纹紧固件固定于第二固定柱425上。具体的，水离子发生器500包括发射针510与发射针架520，二者固定连接，通过发射针510发射水离子，发射针架520通过螺纹紧固件固定于第二固定柱425上。发射针架520上设有第三缺口521，用以避让伸出部423。发射针架520上还设有过线槽522，前述的导线360穿过过线槽522后伸入线路板架300上的护线管341。优选的，内筒420的内侧壁上还设有限位板424，发射针架520上对应设有第二限位槽523，限位板424卡入第二限位槽523以进行限位。
参阅图13，图13为本发明一实施例中的磁性件与营养物质盒的结构示意图。在一些实施例中，在内筒420的端部还设有营养物质盒650，营养物质盒650与磁性件630固定方式类似，也被卡于伸出部423与外筒410的端板之间。营养物质盒650内设有营养物质，能够对头发进行养护修复。营养物质盒650内存储的营养物质可以为胶原蛋白或维生素或精油等物质。营养物质可以为块状，或者，可以为被无纺布包裹的粉末状。使用该毛发干燥用具干燥头发或宠物毛发时，营养物质会随气流一起吹出，并附着于头发或毛发表面，对头发或毛发进行护理修复。优选的，营养物质盒650与磁性件630均呈环形，且磁性件630所占范围的圆心角与营养物质盒650所占范围的圆心角的比值m的范围为1.5≤m≤2。如此，可以保证磁性件630面积足够，与风嘴之间具有足够的磁吸力以保证风嘴不会掉落，同时，又能吹出足够的营养物质。
参阅图8、图9与图11，对发热组件400中其他部件的结构进行如下说明。内筒420上固定有外固定板441与内固定板442，外固定板441沿径向位于内固定板442的外侧。具体的，内筒420上设有安装槽421，外固定板441与内固定板442均卡入安装槽421内。外固定板441与内固定板442上均缠绕有发热丝430。具体地，发热丝430中，第一发热层431缠绕于外固定板441上，第二发热层432缠绕于内固定板442上。具体的，外固定板441上设有锯齿4411，第一发热层431缠绕于锯齿4411上，类似的，内固定板442上也设有锯齿。优选 的，在外固定板441与内固定板442之间设有隔热筒443，用于将第一发热层431与第二发热层432隔开，以免在毛发干燥用具发生碰撞时第一发热层431与第二发热层432接触而发生短路。具体的，外固定板441上设有第二缺口4412，隔热筒443卡于第二缺口4412内。类似的，内固定板442上也设有缺口，用于使隔热筒443卡入。在外筒410的内侧壁上还设置有一圈隔热片470，用于将发热丝430与外筒410隔开，以免外筒410温度过高而将使用者烫伤。隔热片470、外固定板441与内固定板442均可以选用云母材质。
参阅图2，对外壳100内的其他部件进行如下说明。在线路板组件200的上方还设有触摸屏组件610，其包括触摸屏与线路板等部件，可以通过触摸触摸屏实现UI交互。具体的，外壳100的上方固定有端盖120，二者卡扣连接。触摸屏固定于端盖120上，二者可以通过超声波焊接。触摸屏选用透明PC制成，表面喷射有镭雕图案与交互按键。触摸屏组件610的线路板与端盖120通过螺纹紧固件连接，该线路板与线路板组件200之间通过线束电连接，并与触摸屏通过线束电连接。优选的，触摸屏组件610的线路板与线路板组件200之间设有缓冲件，用于进行缓冲。具体的，可以将缓冲泡棉粘贴于触摸屏组件610的线路板的底部。用户在使用时，只需手握手柄，并触摸触摸屏即可完成UI交互，操作非常方便。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 毛发干燥用具，其特征在于，包括：
    手柄(700)，所述手柄(700)内设置有电机(720)；
    外壳(100)，所述外壳(100)与所述手柄(700)连接；
    线路板组件(200)，所述线路板组件(200)设置于所述外壳(100)内，所述线路板组件(200)上设有多个元件，
    线路板架(300)，所述线路板架(300)设置于所述外壳(100)内，所述线路板组件(200)与所述线路板架(300)沿所述外壳(100)的轴向排布，所述线路板架(300)上设有朝远离所述线路板组件(200)的方向凹陷的凹陷部，至少部分所述元件伸入所述凹陷部。
  2. 根据权利要求1所述的毛发干燥用具，其特征在于，设所述元件沿所述轴向延伸的垂直距离为所述元件的高度，沿所述轴向的投影位于所述凹陷部内的至少部分所述元件的高度大于投影位于所述凹陷部外的所述元件的高度。
  3. 根据权利要求1所述的毛发干燥用具，其特征在于，所述线路板架(300)包括第一平板(311)与第二平板(312)，沿所述轴向，所述第二平板(312)与所述线路板组件(200)的间距大于所述第一平板(311)与所述线路板组件(200)的间距，至少部分所述元件沿所述轴向的投影位于所述第二平板(312)上。
  4. 根据权利要求3所述的毛发干燥用具，其特征在于，所述第一平板(311)与所述第二平板(312)之间光滑过渡，所述毛发干燥用具包括风道，所述线路板架(300)将所述线路板组件(200)与所述风道分隔，气流沿所述外壳(100)的径向流入所述线路板架(300)的远离所述线路板组件(200)的一侧，并沿所述外壳(100)的轴向流出。
  5. 根据权利要求1所述的毛发干燥用具，其特征在于，所述线路板组件(200) 包括沿所述轴向间隔设置的第一线路板(210)与第二线路板(220)，所述第二线路板(220)位于所述第一线路板(210)与所述线路板架(300)之间，多个所述元件中，部分设置于所述第一线路板(210)上，部分设置于所述第二线路板(220)上，所述第二线路板(220)沿所述轴向的投影与所述第一线路板(210)沿所述轴向的投影至少部分重合。
  6. 根据权利要求5所述的毛发干燥用具，其特征在于，设所述元件沿所述轴向延伸的垂直距离为所述元件的高度，沿所述轴向，所述第二线路板(220)投影至所述第一线路板(210)上的投影区域外的区域设为第一区域，设置于所述第一线路板(210)上的所述元件中，所述第一区域内的至少部分所述元件的高度大于所述投影区域内的所述元件的高度。
  7. 根据权利要求6所述的毛发干燥用具，其特征在于，高度不小于所述第一线路板(210)与所述第二线路板(220)的间距的所述元件设置于所述第一线路板(210)上，且位于所述第一区域内。
  8. 根据权利要求5所述的毛发干燥用具，其特征在于，设所述元件沿所述轴向延伸的垂直距离为所述元件的高度，沿所述轴向，所述第二线路板(220)投影至所述第一线路板(210)上的投影区域外的区域设为第一区域，设置于所述第一线路板(210)上所述第一区域内的至少部分所述元件的高度大于设置于所述第二线路板(220)上的所述元件的高度。
    优选地，设置于所述第一线路板(210)上的所述元件中，位于所述第一区域内的至少部分所述元件伸入所述凹陷部。
    优选地，所述线路板架(300)包括第一平板(311)与第二平板(312)，沿所述轴向，所述第二平板(312)与所述线路板组件(200)的间距大于所述第一平板(311)与所述线路板组件(200)的间距，所述第二线路板(220)上 设置的至少部分所述元件与所述第一平板(311)贴合，所述第一线路板(210)上设置的至少部分所述元件与所述第二平板(312)贴合。
    优选地，所述第一线路板(210)上至少设置有电容(241)与负离子发生器(242)，且所述电容(241)与所述负离子发生器(242)位于所述第一区域内。
    优选地，所述第二线路板(220)上至少设有晶体管(243)。
    优选地，所述毛发干燥用具包括风道，所述线路板架(300)上嵌设有与所述风道连通的散热件(620)，所述散热件(620)与所述晶体管(243)接触。
  9. 根据权利要求5所述的毛发干燥用具，其特征在于，所述线路板组件(200)与所述线路板架(300)固定连接。
    优选地，所述线路板架(300)包括朝所述线路板组件(200)伸出的固定柱(320)，所述固定柱(320)与所述第一线路板(210)固定连接，所述固定柱(320)沿所述轴向的投影位于所述第一线路板(210)范围内。
    优选地，所述线路板架(300)包括朝所述线路板组件(200)伸出的多个定位件(330)，每个所述定位件(330)连接于一个所述固定柱(320)的外侧，所述第一线路板(210)的侧壁与多个所述定位件(330)抵持。
    优选地，还包括发热组件(400)，所述线路板组件(200)、所述线路板架(300)、所述发热组件(400)沿所述轴向依次设置，所述线路板架(300)与所述发热组件(400)固定连接，所述发热组件(400)与所述外壳(100)固定连接。
    优选地，所述发热组件(400)包括外筒(410)与内筒(420)，所述外筒(410)与所述线路板架(300)固定连接，所述外筒(410)套设于所述内筒(420)的外部，所述内筒(420)与所述外筒(410)之间设置有发热丝(430)，所述 内筒(420)的内部设置有水离子发生器(500)。
    优选地，所述发热组件(400)还包括控温器件与导线(460)，所述控温器件包括相互之间电连接的温控器(451)与保险丝(452)，所述线路板组件(200)、所述发热丝(430)、所述控温器件三者之间依次电连接形成回路，以所述线路板组件(200)与所述发热丝(430)作为外部部件，所述保险丝(452)与所述外部部件之间通过所述导线(460)电连接所述导线(460)设置于所述内筒(420)的内部。
    优选地，所述内筒(420)的外侧壁上设有朝内凹陷的容纳槽(422)，所述温控器(451)设置于所述容纳槽(422)内。
    优选地，所述内筒(420)的内侧壁上对应所述容纳槽(422)的区域朝内伸出以形成伸出部(423)。
    优选地，还包括磁性件(630)，所述外筒(410)包括外筒侧板与外筒端板，所述外筒侧板沿径向设置于所述内筒(420)的外侧，所述外筒端板位于所述伸出部(423)的外端，所述磁性件(630)卡于所述伸出部(423)与所述外筒端板之间。
    优选地，还包括营养物质盒(650)，所述营养物质盒(650)与所述磁性件(630)均卡于所述伸出部(423)与所述外筒端板之间。
    优选地，所述营养物质盒(650)与所述磁性件(630)均呈环形，且所述磁性件(630)所占范围的圆心角与所述营养物质盒(650)所占范围的圆心角的比值m的范围为1.5≤m≤2。
    优选地，所述线路板架(300)包括朝所述发热组件(400)伸出的护线管(341)，所述导线(460)穿过所述护线管(341)。
    优选地，所述线路板架(300)上靠近所述发热组件(400)的一侧具有开 口(361)，所述线路板架(300)的内部中空以形成腔体(362)，所述护线管(341)伸入所述腔体(362)内，且所述护线管(341)的端部抵持于所述内筒(420)。
  10. 根据权利要求8所述的毛发干燥用具，其特征在于，所述第一线路板(210)的最大直径d的范围为60mm≤d≤65mm，所述第一线路板(210)与所述第二线路板(220)的间距s的范围为s≥8mm，所述电容(241)的高度h的范围为22mm≤h≤24mm。
PCT/CN2022/113988 2021-11-09 2022-08-22 毛发干燥用具 WO2023082759A1 (zh)

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