Multifunctional handheld electric hair drier

Abstract

The utility model discloses a multifunctional handheld electric hair drier which comprises a columnar shell, an air duct is arranged in the shell, an air outlet fan is arranged in the air duct, the top of the shell is provided with an air outlet communicated with the air duct, and the bottom of the shell is provided with an air inlet communicated with the air duct. The horizontal sectional area of the shell is gradually increased from the middle of the shell to the upper and lower ends of the shell; the horizontal sectional area of the shell is gradually increased from the middle of the shell to the upper end and the lower end of the shell, so that the shell is of a structure with the small middle and the large upper end and the large lower end, the handheld feeling is comfortable, and the anti-skid effect is achieved; therefore, the interval between the air duct and the PCB is increased, the air inlet sectional area is increased, and the air inlet effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of hair dryers, and particularly to a multifunctional handheld hair dryer. Background Art

[0002] The existing hair dryer is designed in a cylindrical shape, with a simple appearance and lacking an anti-slip function. In addition, a PCB board is arranged inside the air duct at the air inlet of the hair dryer. Since the hair dryer is cylindrical, the interval between the air duct and the PCB board is small, which to a certain extent affects the air intake effect. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a multifunctional handheld hair dryer.

[0004] The multifunctional handheld hair dryer according to the first aspect embodiment of the utility model includes a columnar housing. The interior of the housing has an air duct, and an air outlet fan is arranged in the air duct. The top of the housing has an air outlet communicating with the air duct, and the bottom of the housing has an air inlet communicating with the air duct. The horizontal cross-sectional area of the housing gradually increases from the middle of the housing towards the upper and lower ends of the housing.

[0005] The multifunctional handheld hair dryer according to the embodiment of the utility model has at least the following technical effects: The horizontal cross-sectional area of the housing gradually increases from the middle of the housing towards the upper and lower ends of the housing, making the housing have a structure that is small in the middle and large at the upper and lower ends, which provides a comfortable hand feeling and an anti-slip effect. The horizontal cross-sectional area of the bottom of the housing is larger than that of the middle of the housing, so that the air duct at the bottom of the housing can be designed larger, thereby increasing the interval between the air duct and the PCB board, increasing the air intake cross-sectional area, and thus improving the air intake effect.

[0006] According to some embodiments of the utility model, it further includes a nozzle accessory. The air inlet end of the nozzle accessory is provided with a first connection part, and the top of the housing has a second connection part. The first connection part and the second connection part are detachably connected.

[0007] According to some embodiments of the utility model, the second connection part has a concave cavity. An air outlet part protruding upwards is arranged in the concave cavity. The air outlet is located on the air outlet part. The first connection part is sleeved outside the air outlet part and is located in the concave cavity. The first connection part is snap-connected with the side wall of the concave cavity.

[0008] According to some embodiments of the present utility model, a protective net is sleeved outside the air outlet part. A plurality of elastic pieces are arranged on the side wall of the protective net. The bottom of the elastic piece protrudes towards the side wall of the concave cavity. There is a gap between the elastic piece and the side wall of the concave cavity. When the first connecting part is inserted between the side wall of the concave cavity and the protective net, the elastic piece clamps the first connecting part between the elastic piece and the side wall of the concave cavity.

[0009] According to some embodiments of the present utility model, the housing includes a first housing and a second housing. The first housing is installed at the upper end of the second housing. The height value of the first housing is greater than the height value of the second housing. The air inlet is arranged on the outer side wall and the bottom of the second housing.

[0010] According to some embodiments of the present utility model, the upper end of the second housing has a first beveled portion, and the lower end of the first housing has a second beveled portion matching the shape of the first beveled portion. The first beveled portion is connected to the second beveled portion.

[0011] According to some embodiments of the present utility model, it further includes sound-absorbing cotton. A third housing is arranged inside the first housing. The third housing is located above the second housing. The air duct includes a first channel, a second channel, and a third channel that are sequentially communicated. The first channel is arranged inside the third housing, the second channel is arranged inside the first housing, the second channel is located between the third housing and the second housing, the third channel is arranged inside the second housing, an air outlet fan is arranged inside the first channel, and the sound-absorbing cotton is sleeved outside the third housing.

[0012] According to some embodiments of the present utility model, it further includes a power cord. The power cord has a connection terminal, and the bottom of the housing has a power terminal. The connection terminal is rotatably connected and electrically connected to the power terminal.

[0013] According to some embodiments of the present utility model, the horizontal cross-sectional shape of the middle part of the housing is circular, and the horizontal cross-sectional shapes of the top and the bottom of the housing are both elliptical.

[0014] According to some embodiments of the present utility model, the air outlet fan is a brushless motor, and a PCB board is installed inside the air duct. The PCB board has an integrated chip for driving the brushless motor to rotate.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the utility model. Description of the Drawings

[0016] Additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a schematic structural diagram of a multi-functional handheld hair dryer according to an embodiment of the present utility model;

[0018] Figure 2 is a cross-sectional view of the multi-functional handheld hair dryer;

[0019] Figure 3 is a cross-sectional view of the housing;

[0020] Figure 4 is a schematic structural diagram after the second housing of the multi-functional handheld hair dryer is taken out downward;

[0021] Figure 5 is a schematic structural diagram of the second housing;

[0022] Figure 6 is an exploded view of the multi-functional handheld hair dryer;

[0023] Figure 7 is a cross-sectional view of the nozzle accessory located above the housing;

[0024] Figure 8 is a cross-sectional view of the nozzle accessory installed on the housing;

[0025] Figure 9 is Figure 8 an enlarged view of part B in

[0026] Figure 10 is Figure 7 an enlarged view of part A in

[0027] Figure 11 is a schematic top view of the multi-functional handheld hair dryer;

[0028] Figure 12 is a schematic structural diagram of the protective net.

[0029] Reference numerals: housing 100, air outlet 110, air inlet 120, first housing 130, second beveled portion 131, second housing 140, first beveled portion 141, third housing 150, power terminal 160, second connecting portion 170, concave cavity 171, air outlet portion 172, notch 173, snap member 174, snap 175, pressing portion 176, spring 177, protective net 180, elastic piece 181, air duct 200, first channel 210, second channel 220, third channel 230, air outlet fan 300, connecting terminal 400, nozzle accessory 500, first connecting portion 510, positioning portion 520, PCB board 600, heating element 700. Detailed implementation manners

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0031] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0034] Referring to Figure 1 、 2 As shown, the multifunctional handheld hair dryer according to an embodiment of the present utility model includes a columnar housing 100. The interior of the housing 100 has an air duct 200. An air outlet fan 300 is provided in the air duct 200. The top of the housing 100 has an air outlet 110 communicating with the air duct 200, and the bottom of the housing 100 has an air inlet 120 communicating with the air duct 200. The horizontal cross-sectional area of the housing 100 gradually increases from the middle of the housing 100 towards the upper and lower ends of the housing 100.

[0035] The horizontal cross-sectional area of the housing 100 gradually increases from the middle of the housing 100 to the upper end of the housing 100, and the horizontal cross-sectional area of the housing 100 gradually increases from the middle of the housing 100 to the lower end of the housing 100, making the housing 100 have a structure that is smaller in the middle and larger at the upper and lower ends, which provides a comfortable hand feeling and an anti-slip effect; as Figure 2 、 3As shown, the horizontal cross-sectional area at the bottom of the housing 100 is larger than that in the middle of the housing 100, so that the air duct 200 at the bottom of the housing 100 can be designed larger, thereby increasing the interval between the air duct 200 and the PCB board 600, increasing the air intake cross-sectional area, and thus improving the air intake effect.

[0036] During operation, as Figure 2 shown, the air outlet fan 300 starts, and the air enters the air duct 200 from the air inlet 120 and then is discharged from the air outlet 110.

[0037] Specifically, as Figure 2 shown, a heating element 700 and a PCB board 600 are installed in the housing 100. The heating element 700 is located above the air outlet fan 300, and the PCB board 600 is located below the air outlet fan 300. The PCB board 600 is electrically connected to the heating element 700 and the air outlet fan 300 respectively. By providing the heating element 700, the hair dryer can blow both cold air and hot air.

[0038] In some embodiments of the present invention, as Figure 1 、 4 shown, the housing 100 includes a first housing 130 and a second housing 140. The first housing 130 is installed at the upper end of the second housing 140. The height value of the first housing 130 is greater than that of the second housing 140, which is equivalent to the second housing 140 being located at the bottom of the housing 100. The air inlet 120 is provided on the outer side wall and the bottom of the second housing 140; since the horizontal cross-sectional area at the bottom of the housing 100 is relatively large, more air inlets 120 can be designed on the outer side wall of the second housing 140, and the air inlet 120 is also provided at the bottom of the second housing 140. Furthermore, the height of the second housing 140 can be designed to be relatively short, lower than the height of the existing cylindrical dust-proof net cover, thereby reducing the height of the housing 100.

[0039] In a further embodiment of the present invention, as Figure 4 shown, the upper end of the second housing 140 has a first chamfered portion 141, and the lower end of the first housing 130 has a second chamfered portion 131 that matches the shape of the first chamfered portion 141. The first chamfered portion 141 is connected to the second chamfered portion 131, so that the top of the second housing 140 is designed to be inclined. While for aesthetics, the inclined part will have an additional air intake area, making the second housing 140 with an upper inclined design have a larger air intake area than the second housing 140 with a flat upper design, making full use of the space of the second housing 140 to maximize the design of the air intake cross-sectional area, ensuring that the air intake cross-sectional area of the second housing 140 is the same as that of the existing cylindrical dust-proof net cover, and ensuring the reduction of the height of the housing 100.

[0040] Specifically, the first beveled portion 141 is snap-connected to the second beveled portion 131. For example, the first beveled portion 141 has a card slot, and the second beveled portion 131 has a clamping block, and the clamping block is snap-connected to the card slot.

[0041] Specifically, the bottom of the second housing 140 can also be inclined.

[0042] In a further embodiment of the present utility model, a sound-absorbing cotton (not shown in the figure) is further included. As Figure 3 、 6 shown, a third housing 150 is provided in the first housing 130. The third housing 150 is located above the second housing 140. The air duct 200 includes a first channel 210, a second channel 220, and a third channel 230 that are sequentially communicated. The first channel 210 is provided in the third housing 150, the second channel 220 is provided in the first housing 130, the second channel 220 is located between the third housing 150 and the second housing 140, the third channel 230 is provided in the second housing 140, an air outlet fan 300 is provided in the first channel 210, the sound-absorbing cotton is sleeved outside the third housing 150, and a sound-absorbing cotton sleeve is sleeved outside the third housing 150 to improve the noise of the air outlet fan 300.

[0043] In some embodiments of the present utility model, a power cord is further included. As Figure 2 shown, the power cord has a connection terminal 400, and the bottom of the housing 100 has a power terminal 160. The connection terminal 400 is rotatably connected and electrically connected to the power terminal 160, so that the power cord can rotate around the power terminal 160 through the connection terminal 400, playing a role in preventing the power cord from being wound and making the power cord not easily knotted.

[0044] In some embodiments of the present utility model, the horizontal cross-sectional shape of the middle part of the housing 100 is circular, and the horizontal cross-sectional shapes of the top and bottom of the housing 100 are both elliptical, so that the upper and lower structures of the housing 100 are elliptical and the middle structure of the housing 100 is circular, making the hand feel more comfortable and playing a better anti-slip role.

[0045] In some embodiments of the present utility model, as Figure 7 、 8 、9 shown, a nozzle attachment 500 is further included. The air inlet end of the nozzle attachment 500 is provided with a first connection portion 510, and the top of the housing 100 has a second connection portion 170. The first connection portion 510 is detachably connected to the second connection portion 170.

[0046] Since the nozzle attachment 500 can be detachably installed on the top of the housing 100, the hair dryer can be adapted to different nozzle attachments 500, and the nozzle attachment 500 can be a wind comb or a clip comb.

[0047] In a further embodiment of the present utility model, as Figure 7 , 10 shown, the second connecting portion 170 has a concave cavity 171, and an air outlet portion 172 protruding upward is provided in the concave cavity 171. The air outlet 110 is located on the air outlet portion 172. As Figure 9 shown, the first connecting portion 510 is sleeved outside the air outlet portion 172 and is located in the concave cavity 171. The first connecting portion 510 is snap-connected to the side wall of the concave cavity 171, so that the hair dryer can be more easily connected to the nozzle attachment 500.

[0048] Specifically, the first connecting portion 510 is annular.

[0049] Specifically, as Figure 11 shown, the side wall of the concave cavity 171 has a notch 173, and a rotatable buckle 174 is installed in the notch 173. The middle of the buckle 174 is rotatably connected to the middle of the notch 173. As Figure 9 shown, on the side of the upper end of the buckle 174 close to the air outlet portion 172, there is a buckle 175. On the side of the lower end of the buckle 174 far from the air outlet portion 172, there is a pressing portion 176. The pressing portion 176 protrudes outside the housing 100. On the side of the lower end of the buckle 174 close to the air outlet portion 172, there is a spring 177. On the outer side wall of the first connecting portion 510 of the nozzle attachment 500, there is a positioning portion 520. The positioning portion 520 is snap-connected to the buckle 175. When the buckle 175 is not snap-connected to the positioning portion 520 or the upper end of the buckle 174 rotates away from the air outlet portion 172 (clockwise rotation), the spring 177 applies a biasing force that causes the upper end of the buckle 174 to rotate toward the air outlet portion 172 (counterclockwise rotation);

[0050] During installation, as Figure 9 , 10 shown, the user presses down the pressing portion 176 to cause the upper end of the buckle 174 to rotate away from the air outlet portion 172 (clockwise rotation). Then, the first connecting portion 510 is inserted into the space between the side wall of the concave cavity 171 and the second connecting portion 170. Then, the pressing portion 176 is released. The buckle 174 rotates toward the air outlet portion 172 (counterclockwise rotation) under the action of the biasing force, so that the buckle 175 is snap-connected to the positioning portion 520, and the nozzle attachment 500 is installed on the housing 100.

[0051] In a further embodiment of the present utility model, as Figure 7 , 8, as shown in Fig. 12, a protective net 180 is sleeved outside the air outlet part 172. A plurality of elastic pieces 181 are arranged on the side wall of the protective net 180. The bottom of the elastic piece 181 protrudes towards the side wall of the concave cavity 171. There is a gap between the elastic piece 181 and the side wall of the concave cavity 171. When the first connecting part 510 is inserted between the side wall of the concave cavity 171 and the protective net 180, the elastic piece 181 clamps the first connecting part 510 between the elastic piece 181 and the side wall of the concave cavity 171. By providing the elastic piece 181, the nozzle accessory 500 is more firmly fixed on the housing 100.

[0052] In some embodiments of the present invention, as Figure 2 shown, the air outlet fan 300 is a brushless motor. A PCB board 600 is installed at the bottom in the air duct 200. The PCB board 600 has an integrated chip for driving the brushless motor to rotate. The integrated chip is used to control the brushless motor, so that the volume of the PCB board 600 can be designed to be smaller, thereby improving the space between the PCB board 600 and the side wall of the air duct 200, making the space larger, thus improving the air intake effect, and since the volume of the PCB board 600 is smaller, the overall height of the housing 100 can be shortened.

[0053] In the description of this specification, the description with reference to terms such as "some embodiments" or "it is conceivable that" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multifunctional handheld hair dryer, characterized in that, Comprising: A columnar housing, the interior of the housing having an air duct, an air outlet fan being provided in the air duct, the top of the housing having an air outlet communicating with the air duct, the bottom of the housing having an air inlet communicating with the air duct, and the horizontal cross-sectional area of the housing gradually increasing from the middle of the housing towards the upper and lower ends of the housing.

2. The multifunctional handheld hair dryer according to claim 1, characterized in that: It further includes a nozzle attachment, the air inlet end of the nozzle attachment being provided with a first connecting portion, the top of the housing having a second connecting portion, and the first connecting portion being detachably connected to the second connecting portion.

3. The multifunctional handheld hair dryer according to claim 2, wherein: The second connecting portion has a concave cavity, the concave cavity having an upwardly protruding air outlet portion, the air outlet being located on the air outlet portion, the first connecting portion being sleeved outside the air outlet portion and located in the concave cavity, and the first connecting portion being snap-connected to the side wall of the concave cavity.

4. The multifunctional handheld hair dryer according to claim 3, wherein: A protective net is sleeved outside the air outlet portion, the side wall of the protective net being provided with a plurality of elastic pieces, the bottom of the elastic pieces protruding towards the side wall of the concave cavity, there being a gap between the elastic pieces and the side wall of the concave cavity, and when the first connecting portion is inserted between the side wall of the concave cavity and the protective net, the elastic pieces clamp the first connecting portion between the elastic pieces and the side wall of the concave cavity.

5. The multifunctional handheld hair dryer according to claim 1, wherein: The housing includes a first housing and a second housing, the first housing being installed at the upper end of the second housing, the height value of the first housing being greater than the height value of the second housing, and the air inlet being provided on the outer side wall and the bottom of the second housing.

6. The multifunctional handheld hair dryer according to claim 5, wherein: The upper end of the second housing has a first beveled portion, the lower end of the first housing having a second beveled portion matching the shape of the first beveled portion, and the first beveled portion being connected to the second beveled portion.

7. The multifunctional handheld hair dryer according to claim 5, wherein: It further includes sound-absorbing cotton, a third housing being provided in the first housing, the third housing being located above the second housing, the air duct including a first channel, a second channel, and a third channel connected in sequence, the first channel being provided in the third housing, the second channel being provided in the first housing, the second channel being located between the third housing and the second housing, the third channel being provided in the second housing, the air outlet fan being provided in the first channel, and the sound-absorbing cotton being sleeved outside the third housing.

8. The multi-functional handheld hair dryer according to claim 1, wherein: It further includes a power cord, the power cord having a connection terminal, the bottom of the housing having a power terminal, and the connection terminal being rotatably connected and electrically connected to the power terminal.

9. The multifunctional handheld hair dryer according to claim 1, wherein: The shape of the horizontal cross-section in the middle of the housing is circular, and the shapes of the horizontal cross-sections at the top and bottom of the housing are both elliptical.

10. The multifunctional handheld hair dryer according to claim 1, characterized in that: The air outlet fan is a brushless motor, a PCB board being installed in the air duct, the PCB board having an integrated chip for driving the brushless motor to rotate.

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