CN210672439U

CN210672439U - Hand-held blowing device

Info

Publication number: CN210672439U
Application number: CN201921522059.1U
Authority: CN
Inventors: 俞浩
Original assignee: Dreame Technology Tianjin Co Ltd
Current assignee: Pursuit Technology Suzhou Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-05
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to a handheld blowing equipment, including the portion of gripping, with the work portion that the portion of gripping is connected, with the work portion is connected in order to gather together the air current tuyere subassembly and introduce outside air current extremely the subassembly that induced drafts of work portion, the work portion is in including the dryer shell and the setting that are formed with the cavity center dryer in the cavity, center dryer with form the wind channel that the air feed stream flows between the dryer shell, center dryer to the extension of tuyere subassembly direction and with the radial direction of the air-out direction in wind channel forms the overlapping. The utility model discloses a central dryer extends to tuyere subassembly direction and forms the overlap with the radial direction in the air-out direction in wind channel, has strengthened central dryer and the compactness of tuyere subassembly, strengthens leakproofness between them.

Description

Hand-held blowing device

Technical Field

The utility model relates to a handheld blowing equipment belongs to electric tool technical field.

Background

The hair dryer is a small personal care household appliance capable of quickly drying hair, and the air can be heated by the heating wires, so that the hair can be dried more quickly. The central wind barrel of the hair drier in the prior art does not extend into the air nozzle assembly, the sealing performance is poor, airflow at the air outlet is disordered, the air blowing time is long, and more electric energy loss is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handheld blowing equipment, its central dryer to the extension of tuyere subassembly direction and form with the radial direction in the air-out direction in wind channel and overlap, strengthened central dryer and tuyere subassembly's compactness, strengthen leakproofness between them.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a handheld blowing device, including the portion of gripping, with the work portion that the portion of gripping is connected, with the work portion is connected in order to gather together the air current tuyere subassembly and introduce the outside air current extremely the subassembly that induced drafts of work portion, the work portion is in including the dryer shell that is formed with the cavity and setting center dryer in the cavity, center dryer with form the wind channel that the air feed stream flows between the dryer shell, center dryer to the extension of tuyere subassembly direction and with the radial direction of the air-out direction in wind channel forms and overlaps.

Further, the central air duct and the air nozzle assembly form a seal in the radial direction.

Further, the tuyere assembly comprises a connecting mechanism connected with the working part, the connecting mechanism comprises a fixing seat connected with the end of the central air duct, a first notch is formed in the air duct shell, a first protrusion matched with the first notch is arranged on the fixing seat, and the air duct shell is fixed on the fixing seat through the first protrusion and the first notch in a clamping mode.

Further, the connecting mechanism further comprises a lantern ring used for connecting the fixed seat and the air nozzle assembly, a second protrusion is arranged on the fixed seat, a second notch matched with the second protrusion is formed in the lantern ring, and the second protrusion is clamped with the second notch so that the lantern ring is fixed on the fixed seat.

Furthermore, a sealing ring for enhancing the sealing performance is further arranged between the fixing seat and the air duct shell.

Further, the working part also comprises a heating assembly for adjusting the temperature of the air flow, and the heating assembly is sleeved on the central air duct.

Further, heating element establishes including the cover heater strip on the central dryer and setting up the sleeve in the heater strip outside, central dryer passes in the sleeve the fixing base is connected.

Further, the central sleeve comprises a first air duct and a second air duct connected with the first air duct and close to the air nozzle assembly, and the heating assembly is arranged on the second air duct.

Further, the working part further comprises a wind suction assembly and a heating assembly which are used for controlling the wind suction assembly and the heating assembly, and the control assembly is sleeved on the first air duct.

Further, the air suction assembly comprises a motor arranged in the holding part and a fan connected with the motor, the motor is provided with an output shaft, and the fan is connected with the output shaft.

The beneficial effects of the utility model reside in that: the central air duct extends towards the air nozzle assembly and is overlapped with the radial direction of the air outlet direction of the air duct, so that the sealing effect of the joint of the air nozzle assembly and the central air duct is better, and the air flow at the air outlet is more gathered;

the heating wire is sleeved on the central air duct, so that the stability of the heating wire in the working process of the working part is better; and the outside of heater strip is provided with the sleeve to reduce the heat that the heater strip transmitted to dryer shell, prevent to scald.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the handheld blowing device of the present invention.

Fig. 2 is a schematic structural view of the grip portion in fig. 1.

Fig. 3 is a partial structure diagram of the holding part in fig. 1.

Fig. 4 is a schematic structural view of the working portion in fig. 1.

Fig. 5 is a partial structural view of the working part in fig. 1.

Fig. 6 is an exploded view of the working portion of fig. 1.

Fig. 7 is a schematic structural view of the connection mechanism in fig. 1.

Fig. 8 is an exploded view of fig. 7.

Fig. 9 is a schematic structural view of the working portion, the connecting mechanism and the tuyere assembly in fig. 1.

Fig. 10 is a schematic structural view of the working portion and the connecting mechanism in fig. 1.

Fig. 11 is a cross-sectional view of fig. 4.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1, the handheld blowing device 100 of a preferred embodiment of the present invention can be used in a hair drying scene; or, the local drying, heating and physical therapy scenes are performed in the aspects of laboratories, physical therapy rooms, industrial production, art designing and the like, and the application scenes of the handheld blowing device 100 are not limited in the application. The hand-held hair-blowing device 100 may comprise the following components: a grip part 1 and a working part 2 connected to the grip part 1.

Referring to fig. 2 and 3, the holding portion 1 has a first end 11 connected to the working portion 2 and a second end 12 away from the working portion 2 for air intake. The second end 12 is penetrated by a cable 4 for supplying power to the hand-held blowing device 100 as a whole. The end of the cable 4 remote from the second end 12 is provided with a plug (not shown in the figures) which can provide an electrical connection to a mains power supply or a battery pack.

The cable 4 includes a live wire and a neutral wire. Alternatively, the cable 4 is divided into at least two wires inside the grip 1 after one wire penetrates the second end 12.

The grip portion 1 has a grip housing 13 to protect components inside the grip portion 1. The grip housing 13 extends from the working portion 2 to an end of the second end portion 12 remote from the working portion 2. The cable 4 enters the grip 1 through the grip housing 13 at the location of the second end 12. The cable 4 is positioned substantially in the middle of the second end 12, extending towards the inner centre of the grip 1. Illustratively, the grip portion 1 has a tubular structure as a whole and has a substantially uniform diameter. Of course, the grip portion 1 may have other shapes, and this embodiment is not limited thereto. Alternatively, in order to ensure stability when the user uses the hand-held blowing apparatus 100, the grip portion 1 portion of the grip housing 13 may be provided with an anti-slip member; alternatively, the material of the grip portion 1 of the grip case 13 is an anti-slip material.

The hand-held blowing apparatus 100 of the present embodiment further includes a suction assembly 14 for introducing an external air flow into the working part 2, the suction assembly 14 being disposed within the grip part 1 to suck and guide the external air flow from the second end 12 to the working part 2. The air suction assembly 14 includes a motor 141 and a fan disposed within the grip 1, the motor 141 having an output shaft and the fan being connected to the output shaft. The motor 141 and the fan may be integrally provided; alternatively, the device may be detachably disposed, which is not limited in this embodiment. Alternatively, the motor 141 may be an ac induction motor, a series ac/dc motor, or a dc motor, and the type of the motor 141 is not limited in this embodiment.

Optionally, a first touch control assembly 5 is further disposed on the holding portion 1, and the first touch control assembly 5 is configured to receive a first touch control operation to adjust a working state of the handheld blowing device 100. Such as: and adjusting the on-off state of the handheld blowing equipment 100 according to the first touch operation. Optionally, the first touch component 5 may be implemented as a button component (i.e., a touch component implemented based on physical keys), a touch display screen component (i.e., a touch component implemented based on virtual keys), or the like, and the implementation manner of the first touch component 5 is not limited in this embodiment.

Of course, other components can also be arranged in the grip portion 1, such as: a fixing component for fixing the cable 4, the touch component and the air suction component 14, and the like, which are not listed here.

The handheld blowing device 100 is further connected with the working part 1 to form an air nozzle assembly 3 for gathering air flow, the working part 1 is provided with an air outlet 224, the air nozzle assembly 3 is connected with the air outlet 224, the air nozzle assembly 3 is used for outputting the air flow heated by the heating assembly 23 from the handheld blowing device 100, the shape and the speed of the air flow in the handheld blowing device 100 can be changed, and the air heated by the heating assembly 23 can be gathered and output to the outside of the handheld blowing device 100. The shape of the tuyere assembly 3 is not particularly limited herein, and is determined according to actual circumstances.

Referring to fig. 4 to 11, the working portion 2 includes a wind tunnel casing 21 forming a cavity, a central wind tunnel 22 disposed in the cavity, a heating assembly 23 sleeved on the central wind tunnel 22 for adjusting the temperature, a control assembly 24 connected to the central wind tunnel 22 for controlling the wind suction assembly 14 and the heating assembly 23, and a cover plate assembly 25 covering one side of the wind tunnel casing 21, wherein the wind suction assembly 14, the heating assembly 23 and the control assembly 24 are electrically connected, and the control assembly 24 is electrically connected to the cable 4. In the embodiment, the control component 24 is a double-layer circuit board 241, the central air duct 22 has an outer peripheral surface, the double-layer circuit board 241 is sleeved on the outer peripheral surface to be fixed with the central air duct 22, and the double-layer circuit boards 241 are both PCB boards. Indeed, in other embodiments, the double-layer circuit board 241 may be other, and is not limited herein according to the actual situation. In the present embodiment, the air duct casing 21 is circular to match the shape of the central air duct 22. Indeed, in other embodiments, the air duct casing 21 may be other, and is not specifically limited herein, depending on the actual situation.

Referring to fig. 7 and 8, an air duct for air flow is formed between the central air duct 22 and the air duct casing 21, the central air duct 22 extends toward the air nozzle assembly 3 and overlaps with the radial direction of the air outlet direction of the air duct, that is, the central air duct 22 and the air nozzle assembly 3 form a seal in the radial direction. The tuyere assembly comprises a connecting mechanism connected with the working part, a vent 84 used for enabling air flow to pass through and flow to the tuyere assembly 3 is arranged on the connecting mechanism 8, the connecting mechanism 8 comprises a fixing seat 81 connected with the end part of the central air duct 22, and the vent 84 is arranged on the fixing seat 81. The central sleeve 22 comprises a first air duct 221 and a second air duct 222 which is connected with the first air duct 221 and is close to the air nozzle assembly 3, the heating assembly 23 is arranged on the second air duct 222, and the control assembly 24 is sleeved on the first air duct 221. The airflow flows from the first air duct 221 to the second air duct 222, and the design aims to: on the one hand, the airflow is heated by the heating assembly 23, and on the other hand, the overall appearance of the hand-held blowing device 100 is more attractive due to the convenience. The first air duct 221 is disposed near the cover plate assembly 25, and the end of the second air duct 222 is disposed with a thread connected to the fixing seat 81, so that the central air duct 22 is tightly connected to the fixing seat 81. Be provided with first notch 211 on the dryer shell 21, be provided with on the fixing base 81 with first notch 211 assorted first protruding 811, first protruding 811 is in order to make dryer shell 21 fix on fixing base 81 with first notch 211 block. The connecting mechanism 8 further includes a sleeve ring 83 for connecting the fixing base 81 and the tuyere assembly 3, the sleeve ring 83 covers the fixing base 81, a second protrusion 812 is disposed on the fixing base 81, a second notch 831 matched with the second protrusion 812 is disposed on the sleeve ring 83, and the second protrusion 812 is engaged with the second notch 831 to fix the sleeve ring 83 on the fixing base 81. A sealing ring 82 for enhancing the sealing performance is further arranged between the fixed seat 81 and the collar 83.

Referring to fig. 9 and 10, the heating element 23 is sleeved on the central air duct 22, and the heating element 23 includes a heating wire 231 sleeved on the central air duct 22 and a sleeve 232 disposed outside the heating wire 231, that is, the sleeve 232 is sleeved on the heating wire 231. Specifically, the heater strip 231 is sleeved on the second air duct 222 and is close to the connecting mechanism 8, and then the end of the second air duct 222 passes through the sleeve 232 to be connected with the fixing seat 81, so as to be arranged on the aim at: the heating wire 231 is sleeved on the second air duct 222, so that the stability of the connection between the heating wire 231 and the second sleeve 222 is better, and the sleeve 232 is arranged outside the heating wire 231, so that the heat transferred to the air duct shell 21 by the heating wire 231 is reduced, and scalding is prevented.

The double-layer circuit board 241 is used for controlling the operating parameters of the handheld blowing device 100. Such as: adjusting the heating power of the heating assembly 23, the rotating speed of the air suction assembly 14 and other working parameters. Correspondingly, the handheld blowing device 100 is provided with a second touch control assembly 6 and a third touch control assembly 7, and both the second touch control assembly 6 and the third touch control assembly 7 are electrically connected to the double-layer circuit board 241. The second touch control element 6 is configured to receive a second touch control operation to enable the double-layer circuit board 241 to adjust the heating power of the heating element 23, so as to adjust the air outlet temperature of the double-layer circuit board 241. The third touch component 7 is configured to receive a third touch operation to enable the double-layer circuit board 241 to adjust the rotation speed of the air suction component 14, so as to adjust the air outlet speed of the double-layer circuit board 241.

Optionally, the second touch-control assembly 6 and the third touch-control assembly 7 are disposed on the cover assembly 25; of course, in practical implementation, the second touch device 6 and the third touch device 7 can be disposed at other positions, such as: in the grip 1, the present embodiment does not limit the installation positions of the second touch device 6 and the third touch device 7.

In addition, in the embodiment, only two working parameters, that is, the double-layer circuit board 241 controls the heating power of the heating element 23 and the rotation speed of the air suction element 14, are taken as an example for description, during actual implementation, other working parameters may be additionally controlled, accordingly, more touch elements may be integrated on the handheld blowing device 100, and this embodiment is not listed here. As above, the second touch module 6 and the third touch module 7 may be implemented as a button module (i.e., a touch module implemented based on physical keys), or a touch display screen module (i.e., a touch module implemented based on virtual keys), and the implementation manner of the second touch module 6 and the third touch module 7 is not limited in this embodiment.

It should be added that two or three of the first touch component 5, the second touch component 6 and the third touch component 7 can also be implemented as one touch component, and the touch component has multiple adjustment functions.

One end of the central air duct 22 close to the cover plate assembly 25 is provided with a first through hole 223, the cover plate assembly 25 is provided with a first protruding block, and the first protruding block passes through the first through hole 223 and is clamped with the first through hole 223 so as to fixedly connect the cover plate assembly 25 and the central air duct 22, that is, in the embodiment, the end of the first air duct 221 is provided with the first through hole 223. In order to make the first protruding block and the first through hole 223 more firmly clamped, a fastener is further disposed at the end of the first protruding block protruding out of the first through hole 223 to prevent the first protruding block from sliding out of the first through hole 223. The fasteners are of conventional design and will not be described in detail herein.

The cover plate assembly 25 is disposed adjacent to the double-layer circuit board 241, and includes a cover plate body 251 disposed at one side of the double-layer circuit board 241, a back cover plate 253 disposed at one side of the cover plate body 251, and an end cap 252 disposed between the back cover plate 253 and the cover plate body 251, and the first protruding block is disposed at a central portion of the cover plate body 251. In the present embodiment, the cover plate body 251, the rear cover plate 253 and the end cap 252 are all circular to cover the air duct casing 21. However, in other embodiments, the cover body 251, the back cover 253 and the end cap 252 may have other shapes, and are not limited herein.

The double-layer circuit board 241 is provided with a second through hole 242, the cover plate assembly 25 is provided with a second protruding block corresponding to the second through hole 242, and the second protruding block passes through the second through hole 242 and is clamped with the second through hole 242 so that the cover plate assembly 25 is clamped with the double-layer circuit board 241. As described above, the second protruding piece is disposed on the cover plate body 251.

The cover plate body 251 is provided with a clamping groove, the rear cover plate 253 is provided with a third protruding block 2531 corresponding to the position of the clamping groove, and the third protruding block 2531 is clamped with the clamping groove. The cover plate assembly 25 further includes an end cap 252 disposed between the cover plate body 251 and the rear cover plate 253, and the end cap 252 is provided with a third through hole 2521 for passing the third protruding block 2531 therethrough.

In summary, the following steps: the central wind tube 22 extends towards the direction of the wind nozzle component 3 and is overlapped with the radial direction of the wind outlet direction of the wind channel, so that the sealing effect of the joint of the wind nozzle component 3 and the central wind tube 22 is better, and the airflow at the wind outlet is more gathered;

the heating wire 231 is sleeved on the central air duct 22, so that the stability of the heating wire 231 in the working process of the working part 2 is better; and the outer side of the heating wire 231 is provided with a sleeve 232 to reduce the heat transferred from the heating wire 231 to the air duct casing 21, thereby preventing scald.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a handheld equipment of blowing, its characterized in that, including the portion of gripping, with the work portion that the portion of gripping is connected, with the work portion is connected in order to gather together the air nozzle subassembly of air current and introduce outside air current extremely the subassembly that induced drafts of work portion, the work portion is in including the dryer shell that is formed with the cavity and setting central dryer in the cavity, central dryer with form the wind channel that the air feed stream flows between the dryer shell, central dryer to the extension of air nozzle subassembly direction and with the radial direction formation of the air-out direction in wind channel overlaps.

2. The handheld blowing apparatus of claim 1, wherein the central air duct forms a seal with the tuyere assembly in a radial direction.

3. The handheld blowing device according to claim 1, wherein the air nozzle assembly includes a connection mechanism connected to the working portion, the connection mechanism includes a fixing seat connected to an end of the central air duct, the air duct housing is provided with a first notch, the fixing seat is provided with a first protrusion matching with the first notch, and the first protrusion is engaged with the first notch to fix the air duct housing to the fixing seat.

4. The handheld blowing device according to claim 3, wherein the connecting mechanism further includes a collar for connecting the fixing base and the nozzle assembly, the fixing base is provided with a second protrusion, the collar is provided with a second notch matching with the second protrusion, and the second protrusion is engaged with the second notch so as to fix the collar on the fixing base.

5. The handheld blowing device of claim 4, wherein a sealing ring for enhancing sealing performance is further disposed between the fixing seat and the air duct casing.

6. The handheld blowing apparatus of claim 3, wherein the working portion further comprises a heating element for adjusting a temperature of the air flow, the heating element being fitted over the central air duct.

7. The handheld blowing device according to claim 6, wherein the heating assembly includes a heating wire sleeved on the central air duct and a sleeve disposed outside the heating wire, and the central air duct penetrates through the sleeve and is connected to the fixing seat.

8. The handheld blowing apparatus of claim 6, wherein the central air duct includes a first air duct and a second air duct connected to the first air duct and disposed adjacent to the tuyere assembly, the heating assembly being disposed on the second air duct.

9. The handheld blowing apparatus according to claim 8, wherein the working portion further includes a control assembly for controlling the air suction assembly and the heating assembly, and the control assembly is sleeved on the first air duct.

10. A hand-held hair-blowing apparatus according to claim 1, characterised in that the suction assembly comprises a motor disposed within the grip portion and a fan connected to the motor, the motor having an output shaft, the fan being connected to the output shaft.