CN214594688U - Noise reduction structure of hair dryer and hair dryer with noise reduction structure - Google Patents

Abstract

The utility model provides a hair-dryer fall structure of making an uproar and have this hair-dryer of making an uproar structure of making an uproar, the hair-dryer includes handle portion, falls the structure of making an uproar including setting up in the inside motor fan subassembly of handle portion and air inlet board, and the air inlet end of motor fan subassembly sets up one section and falls the interval of making an uproar between the air inlet end of air inlet board and motor fan subassembly towards the air inlet board, sets up a plurality of through-holes on the air inlet board. The noise of the hair drier in use can be effectively reduced by reasonably designing the inner diameter of the through holes, the distance between two adjacent through holes and the distance between the air inlet plate and the air inlet end of the motor fan; the air inlet plate has low manufacturing cost and simple manufacturing process; the air inlet plate adopts a plug-in mounting structure, so that the replacement is convenient; the first cover body is provided with a first silencing cotton mounting area, and the second cover body is provided with a second silencing cotton mounting area which are respectively used for mounting silencing cotton so as to be beneficial to noise reduction; the outside parcel shock pad of motor fan plays further the effect of making an uproar of falling.

Description

Noise reduction structure of hair dryer and hair dryer with noise reduction structure

Technical Field

The utility model relates to a hair care equipment field especially relates to a structure of making an uproar and have this hair-dryer of making an uproar structure of making an uproar falls of hair-dryer.

Background

The hair dryer is mainly used for drying and shaping hair, but also can be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production, art designing and the like. The blower is usually provided with a motor fan inside, the motor directly drives the rotor to drive the fan blades to rotate, when the fan blades rotate, air is sucked from the air inlet, and centrifugal airflow formed by the air inlet is blown out from the front nozzle of the air duct. When the existing hair dryer is used, when the wind speed of the fan blades is high, the phenomenon of squeaking can be generated during air inlet and air outlet, and the noise of the hair dryer is large. In order to solve the problems, a silencing structure is arranged at the position of a motor fan in the prior art, and the silencing structure is high in manufacturing cost, complex in manufacturing process and low in cost performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the hair-dryer of making an uproar structure and having this structure of making an uproar of falling of a hair-dryer that proposes reduces manufacturing cost, improves the noise reduction effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a noise reduction structure of a hair dryer comprises a handle part, the noise reduction structure comprises a motor fan component and an air inlet plate which are arranged inside the handle part, the air inlet end of the motor fan component faces the air inlet plate, a noise reduction interval is arranged between the air inlet plate and the air inlet end of the motor fan component, and a plurality of through holes are formed in the air inlet plate; the axis of each through hole is parallel to the axis of the motor fan assembly or inclined relative to the axis of the motor fan assembly; the inner diameter of each through hole is 0.3-1.6mm, the distance between every two adjacent through holes is 0.1-0.5mm, and the noise reduction distance between the air inlet plate and the air inlet end of the motor fan assembly is 28-35 mm.

Preferably, the inner diameter of each through-hole is 0.6-1.2 mm.

Preferably, still include the amortization cotton, motor fan subassembly with between the air inlet plate handle portion is equipped with the cotton installing zone of amortization, the amortization cotton install in on the cotton installing zone of amortization.

Preferably, the silencing cotton mounting area is provided with a grid-shaped arrangement of through hole structures.

The utility model also provides a hair drier with noise reduction structure, it includes handle portion and noise reduction structure that is located in the handle portion, the inside of handle portion is equipped with the inlet air channel that extends along the first direction, noise reduction structure includes motor fan subassembly and air inlet plate, motor fan subassembly is located in the inlet air channel, the air inlet plate cartridge is in the air inlet end of handle portion; the air inlet plate with set up one section between the air inlet end of motor fan subassembly and fall the interval of making an uproar, set up a plurality of through-holes on the air inlet plate.

Preferably, the handle portion includes a first cover and a second cover, the first cover and the second cover are buckled with each other, and the air inlet channel is formed between the first cover and the second cover.

Preferably, the first cover body is provided with an insertion hole, the second cover body is correspondingly provided with an insertion groove, the inner end of the air inlet plate is embedded into the insertion groove, and the outer end of the air inlet plate is located in the insertion hole.

Preferably, a notch is formed in one corner of the outer end of the air inlet plate, and an auxiliary hole is formed beside the notch; the outer wall of the first cover body corresponds to two sides of the insertion hole are provided with a first blocking strip and a second blocking strip, the extension length of the first blocking strip is equal to the extension length of the outer end of the air inlet plate, the extension length of the second blocking strip is smaller than the extension length of the first blocking strip, and the auxiliary hole is exposed out of the end portion of the second blocking strip.

Preferably, the inner end of the air inlet plate is arc-shaped, and the structure of the inner end of the air inlet plate is matched with that of the insertion groove; the outer end of the air inlet plate is arc-shaped, and the outer end profile of the air inlet plate is matched with the arc-shaped profiles of the first barrier strips and the second barrier strips.

Preferably, the motor fan subassembly with correspond between the air inlet plate be equipped with the cotton installing zone of first amortization on the first lid, the motor fan subassembly with correspond between the air inlet plate be equipped with the cotton installing zone of second amortization on the second lid, the cotton installing zone of first amortization the cotton installing zone of second amortization all is used for installing the amortization cotton.

Preferably, the motor fan subassembly includes motor fan and shock pad, motor fan locates the inside middle section of handle portion, motor fan's fan blade orientation the air inlet plate, the shock pad wrap up in motor fan's the outside, the lateral surface of shock pad with the inner wall laminating of handle portion, the medial surface of shock pad with motor fan's cylinder side laminating.

Preferably, the hair dryer further comprises an air cylinder part, a heating assembly and a circuit board, wherein an air outlet channel extending along a second direction is arranged inside the air cylinder part, and the air outlet channel is communicated with the air inlet channel; the heating assembly is arranged in the air cylinder part; the circuit board is located motor fan subassembly's air-out end low reaches and follow the length direction of handle portion extends, in order to inciting somebody to action air inlet channel separates for two wind channels at least.

Preferably, a guide member is disposed in the air duct portion and is located at a position where the air outlet channel communicates with the air inlet channel, and the guide member has a guide surface inclined with respect to the first direction and the second direction so as to guide the air flows in the dual air ducts to enter the air outlet channel through the guide surfaces, respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the tail end of the handle part of the hair drier is provided with the air inlet plate, the air inlet plate is provided with a plurality of through holes, and the noise of the hair drier in use can be effectively reduced by reasonably designing the inner diameter of each through hole, the distance between every two adjacent through holes and the distance between the air inlet plate and the air inlet end of the motor fan; the air inlet plate can be made of a common PCB or other suitable materials, so that the manufacturing cost is low and the manufacturing process is simple;

2. the air inlet plate is of a plug-in type structure, a first cover body of the handle part is provided with plug-in holes, a second cover body is provided with plug-in grooves, and the air inlet plate can be accurately plugged into the tail end of the handle part; the auxiliary holes on the air inlet plate are exposed, so that the air inlet plate is convenient to replace;

3. the first cover body is provided with a first silencing cotton mounting area, and the second cover body is provided with a second silencing cotton mounting area which are respectively used for mounting silencing cotton, so that noise transmission is reduced; the shock pad is wrapped outside the motor to further reduce noise;

4. the circuit board divides the air inlet channel into double air channels, when the air flow blows to the guiding piece from the double air channels, the guiding piece is provided with a guiding surface which is inclined relative to the air inlet channel and the air outlet channel, the two air flows of the double air channels can be guided to enter the air outlet channel through the guiding surface respectively, a coanda effect is formed, the air flow is in smooth transition at the corners of the air channels, the effect of improving the wind power is achieved, and the noise reduction effect is also achieved; in addition, if the air inlet channel is divided into uneven double air channels, the pressure on two sides of the air flow blown to the guide piece is inconsistent, and rotary air flow can be formed in the air outlet channel, so that the wind power is further improved; the high-power device is arranged on the circuit board, and the airflow passing through the double air channels can dissipate heat of the power device, so that the heat dissipation effect is good.

Drawings

Fig. 1 is a schematic external structural view of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention;

fig. 2 is an exploded view of a hair dryer having a noise reduction structure according to embodiment 1 of the present invention;

fig. 3 is a schematic view of an internal structure of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a blower with a noise reduction structure according to embodiment 1 of the present invention after a front cover is removed;

fig. 5 is an exploded view of a heating unit in a hair dryer having a noise reduction structure according to embodiment 1 of the present invention;

fig. 6 is an exploded view of an air inlet plate of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 6;

fig. 8 is a schematic view of a combined structure of an air inlet plate in a hair dryer with a noise reduction structure according to embodiment 1 of the present invention;

fig. 9 is a schematic view of a structure of a wire clip in a hair dryer with a noise reduction structure according to embodiment 1 of the present invention;

figure 10 is an electrical schematic diagram of a blower having a noise reducing structure in accordance with the present invention;

figure 11 is an electrical schematic diagram of a heater in a hair dryer having a noise reducing structure in accordance with the present invention;

fig. 12 is a schematic structural view of a blower with a noise reduction structure according to embodiment 2 of the present invention after a front cover is removed;

fig. 13 is a simplified schematic diagram of a wire clamping structure of a hair dryer with a noise reduction structure according to embodiment 3 of the present invention;

fig. 14 is a simplified schematic diagram of a wire clamping structure of a hair dryer with a noise reduction structure according to embodiment 4 of the present invention.

In the figure, 100-a blower, 10-a handle part, 11-a first cover body, 111-an insertion hole, 112-a first barrier strip, 113-a second barrier strip, 114-a first silencing cotton mounting area, 12-a second cover body, 121-an insertion groove, 122-a second silencing cotton mounting area, 13-an air inlet cover, 14-a filter screen, 15-an air inlet plate, 151-a through hole, 152-a notch, 153-an auxiliary hole, 16-a first wire clamping hole, 17-a second wire clamping hole, 18-a handle sleeve, 191-a wire distribution groove, 192-a wire distribution groove, 20-a wind barrel part, 21-a first barrel body, 22-a second barrel body, 221-an inner barrel, 23-a sealing ring, 31-a circuit board, 32-a circuit board, 40-a motor fan assembly and 41-a motor fan, 411-fan blades, 42-shock absorption pads, 50-guide pieces, 51-guide surfaces, 60-heating components, 61-heat insulation supports, 611-flow guide parts, 412-inner pipes, 413-connecting pieces, 614-air outlets, 62-heaters, 621-inner rings, 622-outer rings, 623-connecting plates, 624-heating wires, 63-temperature sensors, 64-fusing fuses, 70-negative ion components, 71-negative ion generators, 72-discharging ends, 80-display components, 81-light emitting elements, 82-light guide columns, 90-adjusting components, 91-buttons and 92-sealing gaskets.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 1 to 4, fig. 1 is a schematic external structural view of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; fig. 2 is an exploded view of a hair dryer having a noise reduction structure according to embodiment 1 of the present invention; fig. 3 is a schematic view of an internal structure of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; fig. 4 is a schematic structural view of a blower with a noise reduction structure according to embodiment 1 of the present invention after a front cover is removed; the utility model provides a structure of making an uproar falls in hair-dryer, this hair-dryer 100 includes handle portion 10, fall the structure of making an uproar including setting up in the inside motor fan subassembly 40 of handle portion 10 and air inlet plate 15, the air inlet end of motor fan subassembly 40 is towards air inlet plate 15, it falls the interval of making an uproar to set up one section between the air inlet end of air inlet plate 15 and motor fan subassembly 40, set up a plurality of through-holes 151 on the air inlet plate 15, the axis of every through-hole 151 is on a parallel with the axis of motor fan subassembly 40, perhaps for the axis slope of motor fan subassembly 40. Wherein, the inner diameter of each through hole 151 is 0.3-1.6mm, the distance between two adjacent through holes 151 is 0.1-0.5mm, and the noise reduction distance h between the air inlet plate 15 and the air inlet end of the motor fan component 40 is 28-35 mm. The utility model reasonably designs the inner diameter of each through hole 151, the distance between two adjacent through holes 151 and the distance between the air inlet plate 15 and the air inlet end of the motor fan component 40, and can effectively reduce the noise of the hair drier in use; the air inlet plate 15 can be made of a common PCB or other suitable plates, and has low manufacturing cost and simple manufacturing process.

Through multiple reasonable tests, the inner diameter r of each through hole 151 is preferably designed to be 0.6-1.2mm, and the noise reduction effect is good.

Referring to fig. 2 and 4, the noise reduction structure further includes noise reduction cotton (not shown), and a noise reduction cotton mounting area is disposed on the handle portion 10 between the motor fan assembly 40 and the air inlet plate 15, and the noise reduction cotton is mounted on the noise reduction cotton mounting area. The handle portion 10 is provided with noise reduction cotton, so that noise transmission can be reduced, and a noise reduction effect is achieved.

According to the utility model discloses a another side provides a hair-dryer with above-mentioned structure of making an uproar falls, please combine to refer to fig. 1 to 4, and hair-dryer 100 includes handle portion 10 and the structure of making an uproar falls that is located handle portion 10, and handle portion 10's inside is equipped with the inlet air duct who extends along the first direction, and the structure of making an uproar falls to include motor fan subassembly 40 and air inlet plate 15, and in motor fan subassembly 40 located inlet air duct, air inlet plate 15 cartridge was held in the air inlet of handle portion 10. The air inlet end of the motor fan assembly 40 faces the air inlet plate 15, a section of noise reduction space is arranged between the air inlet plate 15 and the air inlet end of the motor fan assembly 40, a plurality of through holes 151 are arranged on the air inlet plate 15, and the axis of each through hole 151 is parallel to the axis of the motor fan assembly 40 or inclined relative to the axis of the motor fan assembly 40. Wherein the inner diameter r of each through hole 151 is 0.3-1.6mm, the distance between two adjacent through holes 151 is 0.1-0.5mm, and the noise reduction distance h between the air inlet plate 15 and the air inlet end of the motor fan assembly 40 is 28-35 mm. The inner diameter r of each through-hole 151 is preferably designed to be 0.6 to 1.2 mm.

When the fan blades in the motor fan assembly 40 rotate, external air enters from the air inlet end of the handle part 10, passes through the through holes 151 on the air inlet plate 15 and enters the air inlet channel; by reasonably designing the inner diameter of the through holes 151, the distance between two adjacent through holes 151 and the distance between the air inlet plate 15 and the air inlet end of the motor fan assembly 40, the noise of the noise reduction blower 100 in use can be effectively reduced, and the squeaking phenomenon is avoided; the blower 100 adopts the noise reduction structure, so that the manufacturing cost is low and the manufacturing process is simple.

The blower 100 further includes an air duct portion 20, an air outlet channel extending along a second direction is formed in the air duct portion 20, the second direction is different from the first direction, and the air outlet channel is communicated with the air inlet channel. In the actual production process, in order to facilitate the assembly and disassembly of internal parts, the handle part 10 and the wind cylinder part 20 can be respectively formed by buckling a plurality of cover bodies or cylinder bodies; in embodiment 1 of the present invention, the handle portion 10 includes a first cover 11, a second cover 12 and a handle sleeve 18, the first cover 11 and the second cover 12 are fastened to each other, and an air inlet channel is formed therein; the handle sleeve 18 is sleeved outside the first cover body 11 and the second cover body 12, and is used for increasing the connection firmness of the handle part 10 and improving the appearance; the wind barrel part 20 comprises a first barrel body 21, a second barrel body 22 and a sealing ring 23, the first barrel body 21 and the second barrel body 22 are buckled with each other, and the sealing ring 23 is arranged at the buckling position of the first barrel body 21 and the second barrel body 22 and used for enhancing the connection firmness and the sealing performance. It should be noted that this embodiment is only one embodiment of the present invention, and in other embodiments, the specific structures of the handle portion 10 and the air duct portion 20 may be set appropriately according to actual conditions.

Since many fine dust impurities exist in the air and the diameter of the through holes on the air inlet plate 15 is small, when the blower 100 is used for a period of time, the through holes are inevitably blocked, and therefore, the air inlet plate 15 needs to be replaced. Please refer to fig. 6 to 8 in combination, fig. 6 is a schematic view illustrating an exploded structure of an air inlet plate in a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; FIG. 7 is an enlarged view of the structure at A in FIG. 6; fig. 8 is a schematic view of a combined structure of an air inlet plate in a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; in order to realize the function of quickly replacing the air inlet plate 15, the tail end of the first cover body 11 is provided with an insertion hole 111, the tail end of the second cover body 12 is correspondingly provided with an insertion groove 121, the inner end of the air inlet plate 15 is embedded into the insertion groove 121, and the outer end of the air inlet plate 15 is positioned in the insertion hole 111. Furthermore, a notch 152 is formed in one corner of the outer end of the air inlet plate 15, and an auxiliary hole 153 is formed beside the notch 152; the outer wall of the first cover 11 is provided with a first barrier 112 and a second barrier 113 at two sides corresponding to the insertion hole 111, the extension length of the first barrier 112 is the same as the extension length of the outer end of the air inlet plate 15 without the notch 152, the extension length of the second barrier 113 is smaller than the extension length of the first barrier 112, and the auxiliary hole 153 is exposed from the end of the second barrier 113. The gap 152 plays a fool-proof role, and is convenient for an operator to quickly identify the insertion direction when the air inlet plate 15 is replaced. When the air inlet plate 15 needs to be replaced, because the auxiliary holes 153 are exposed from the end part of the second barrier strip 113, an operator can penetrate into the auxiliary holes 153 by using a tool to pull out the air inlet plate 15 needing to be replaced and insert a new air inlet plate 15, and the replacement process is simple and rapid.

The inner end of the air inlet plate 15 is arc-shaped, and the structure of the inner end of the air inlet plate 15 is matched with that of the insertion groove 121; the outer end of the air inlet plate 15 is arc-shaped, and the outer end profile of the air inlet plate 15 is matched with the arc-shaped profiles of the first barrier strip 112 and the second barrier strip 113.

A first silencing cotton mounting area 114 is arranged on the first cover body 11 corresponding to the position between the motor fan assembly 40 and the air inlet plate 15, a second silencing cotton mounting area 122 is arranged on the second cover body 12 corresponding to the position between the motor fan assembly 40 and the air inlet plate 15, and the first silencing cotton mounting area 114 and the second silencing cotton mounting area 122 are both used for mounting silencing cotton, so that the further noise reduction effect is achieved; the silencing cotton mounting area is of a grid-shaped arrangement through hole structure.

Referring to fig. 2 or 4, the motor fan assembly 40 includes a motor fan 41 and a shock pad 42, the motor fan 41 is disposed inside the handle portion 10, the fan blades 411 of the motor fan 41 face the air inlet plate 15, the shock pad 42 is wrapped on the outer side of the motor fan 41, the outer side of the shock pad 42 is attached to the inner wall of the handle portion 10, and the inner side of the shock pad 42 is attached to the cylindrical side of the motor fan 41. The shock pad 42 is made of silica gel, so that noise generated during the operation of the motor fan 41 can be eliminated, and air inlet and air outlet squeal are relieved.

The blower 100 with the noise reduction structure further comprises a heating component 60 and a circuit board 31, wherein the heating component 60 is arranged in the air duct part 20; the circuit board 31 is arranged in the handle part 10 at the downstream of the air outlet end of the motor fan assembly 40 and extends along the length direction of the handle part 10 to divide the air inlet channel into at least two air channels; the guide member 50 is disposed in the air duct portion 20 and is located at a position where the air outlet passage communicates with the air inlet passage, and the guide member 50 has guide surfaces 51 inclined with respect to the first direction and the second direction to guide the air flows in the dual ducts to enter the air outlet passage through the guide surfaces 51, respectively. The central axis of the guide surface 51 is sandwiched between the central axis of the handle portion 10 and the central axis of the air duct portion 20. Preferably, the guide surface 51 is a concave arc surface, when the airflow blows from the dual air ducts to the guide member 50, the guide surface 51 can guide the two airflows of the dual air ducts to enter the air outlet channel through the guide surface 51 respectively, so as to form a coanda effect, and the airflow smoothly transits at the corners of the air ducts, so as to achieve the effect of improving the wind power and further have a noise reduction effect.

Please refer to fig. 4, in embodiment 1 of the present invention, the circuit board 31 is disposed in the middle of the handle portion 10, the circuit board 31 separates the air inlet channel into two air channels with equal cross-sectional areas, two air streams with equal sizes in the two air channels enter the air outlet channel through the guide surface 51, and the air streams are in smooth transition at the corners of the air channels, so as to achieve the effects of improving wind power and reducing noise. The high-power device is arranged on the circuit board 31, and the airflow passing through the double air channels can dissipate heat of the high-power device, so that the heat dissipation effect is good.

The embodiment of the utility model provides an in 1, the contained angle between the axis of first barrel 21 and the axis of handle portion 10 is 93, accords with ergonomic requirement, and convenient handheld. An inner cylinder 221 is arranged in the second cylinder 22, the guide piece 50 is sleeved on the inner cylinder 221, the guide surface 50 is an annular surface 51, and the guide surface 51 can guide the two air flows of the double air ducts to enter the air outlet channel through the guide surface 51.

Referring to fig. 2 and 3, an air inlet end of the handle portion 10 is provided with an air inlet cover 13 and a filter screen 14, and the filter screen 14 is disposed inside the air inlet cover 13 and is used for filtering air flow entering the air inlet channel, filtering impurities in the air flow, avoiding blockage of the impurities, and prolonging the service life of the hair dryer.

Referring to fig. 2 and 5, fig. 5 is a schematic view illustrating an exploded structure of a heating assembly in a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; the heating assembly 60 comprises a heat insulation support 61, a heater 62 and a temperature sensor 63, wherein the heat insulation support 61 is arranged inside the first cylinder 21, an annular air outlet 614 is arranged on the air outlet side of the heat insulation support 61, the heater 62 is arranged on the heat insulation support 61, and the temperature sensor 63 is arranged on one side of the heater 62 facing the air outlet 614. Specifically, the heat insulation support 61 includes a flow guide portion 611, an inner tube 612 and a connector 613, the flow guide portion 611 is in a shape of a circular truncated cone side, a small diameter end of the flow guide portion 611 faces an air outlet end of the first cylinder 21, the connector 613 is connected between the small diameter end of the flow guide portion 611 and the air outlet side end of the inner tube 612 along the radial direction of the inner tube 612, the air inlet side end of the inner tube 612 is butted with the inner tube 221, and the inner tube 612 defines an air outlet channel as an annular air duct; the heater 62 is sleeved on the inner tube 612, the heater 62 includes an inner ring 621, an outer ring 622, a connecting plate 623 and a heating wire 624, the outer ring 622 and the inner ring 621 are coaxially arranged, the connecting plate 623 is connected between the inner ring 621 and the outer ring 622 along the radial direction of the inner ring 621, and the heating wire 624 is wound on the connecting plate 623 along the circumferential direction of the inner ring 621 in a bending shape. In the working process of the hair dryer 100, the heating wire 624 is powered on to heat the air flow in the air outlet channel, and the heated air flow is blown out from the air outlet 614, so that the functions of hair drying, modeling and the like can be realized. The temperature sensor 63 can detect the temperature of the air flow at the air inlet 614, so that the user can conveniently obtain the blowing temperature.

The heating assembly 60 further comprises a fuse type fuse 64, the fuse type fuse 64 is arranged on the air outlet side of the outer ring 622 and the inner ring 621, and the fuse type fuse 64 is connected with the heating wire 624 in series, so that short circuit protection and overcurrent protection are achieved, and the use safety of the hair dryer is guaranteed.

In the hair dryer in the prior art, the power cord is generally fixed to the tail end of the handle of the hair dryer through additional parts such as clamping jaws and clamping seats, so that the production cost and the manufacturing process are increased, and the parts also need additional storage space and management. Therefore, the utility model discloses handle structure to the hair-dryer improves, utilizes self structure to carry out the chucking to the power cord and fixes. Referring to fig. 9, fig. 9 is a schematic view of a wire clamping structure of a hair dryer with a noise reduction structure according to embodiment 1 of the present invention; the tail end of the handle part 10 is provided with at least a first card wire hole 16 and a second card wire hole 17, the first card wire hole 16 and the second card wire hole 17 are overlapped in the length direction of the handle part 10, the axis of the first card wire hole 16 is not overlapped with the axis of the second card wire hole 17, and a step-shaped card wire structure is formed at the transition position of the first card wire hole 16 and the second card wire hole 17. Therefore, the power cord can be clamped and fixed at the tail end of the handle part 10 by utilizing the self structure of the handle part 10, the connection firmness of the power cord is improved, additional parts are avoided, and the production cost and the manufacturing process are saved. The corners of the step-shaped wire clamping structure are in smooth transition, so that the power line can be prevented from being scratched.

The embodiment of the utility model provides an in 1, the internal diameter in first card line hole 16 equals with the internal diameter in second card line hole 17, first card line hole 16 is parallel to each other with the axis in second card line hole 17, and all be on a parallel with the axis of handle portion 10, second card line hole 17 is located the inboard in first card line hole 16, the inside of handle portion 10 is equipped with branch line groove 191 corresponding to the inboard in second card line hole 17, the inner wall both sides of handle portion 10 are equipped with trough 192, the trough 192 of both sides communicates with branch line groove 191 respectively. The power cord is clamped at a cord clamping structure formed by the first cord clamping hole 16 and the second cord clamping hole 17, the power cord is branched at the branching groove 191, the separated wires are respectively routed through the wiring grooves 192 at two sides, and the heating component 60 and the motor fan component 40 are electrically connected with the circuit board 31 through the wires, so that the electric control of the hair dryer 100 is realized. The design of the wire dividing groove 191 and the wire distributing groove 192 facilitates rapid wire distribution, and the internal cleanliness of the hair dryer can be improved.

Referring to fig. 2, in embodiment 1 of the present invention, the hair dryer 100 further includes a circuit board 32, the circuit board 32 is disposed in the second cylinder 22, the circuit board 32 is annular and is sleeved on the inner tube 221, and the circuit board 32 is electrically connected to the circuit board 31. In actual assembly, components with high power and high heat productivity are mounted on the circuit board 31, and the high-power components are radiated by using airflow of the double air ducts; some components with low heat productivity can be mounted on the circuit board 32, and natural heat dissipation can be performed by using the ambient temperature. However, the present invention is not limited to this, and in other embodiments, only one circuit board that separates the air intake channel into two air ducts may be provided, and all necessary electronic components are mounted on the circuit board.

Referring to fig. 2, the blower 100 further includes an anion assembly 70, the anion assembly 70 includes an anion generator 71 and a discharge end 72, the anion generator 71 is disposed on the circuit board 32, and the discharge end 72 extends to the air outlet 614. The negative ions emitted from the discharge end 72 of the negative ion generator 71 are blown out from the air outlet 614 along with the heated air flow, so that the static electricity generated by the hair can be neutralized, and the effect of smoothing the hair is achieved. The discharge end 72 is preferably a carbon brush, which can improve the negative ion emission effect.

Referring to fig. 2, the blower 100 further includes a display assembly 80, the display assembly 80 includes a light emitting element 81 and a light guiding pillar 82, the light emitting element 81 is disposed on the circuit board 32, the light guiding pillar 82 is disposed between the light emitting element 81 and the second cylinder 22, and the thickness of the second cylinder 22 corresponding to the light guiding pillar 82 is reduced. In use, the light guide rod 82 can transmit the light generated by the light emitting element 81 to the corresponding position of the second cylinder 82, so that the user can know the working state of the hair dryer 100 conveniently. For example, the light emitting element 81 may be an LED chip, and the light guide 82 may be configured to match the LED chip and to display the operating temperature of the blower 100. The light emitting elements 81 may also be diodes of different colors, such as red and blue, for displaying the states of hot air blowing and cold air blowing, respectively. The thickness of the second barrel 22 of leaded light post 82 correspondence department carries out the attenuate processing to light can see through as the standard, can realize the data display function ingeniously, can avoid again offering the through-hole that is used for installing the display screen on the casing, saves production technology, reduces the processing cost, can also improve structural strength, improves waterproof, dustproof effect.

Referring to fig. 2, the blower 100 further includes an adjusting assembly 90, the adjusting assembly 90 includes a button 91 and a gasket 92, the button 91 is connected to the circuit board 32 and exposed from the second cylinder 22, and a user can adjust an operating parameter of the blower 100, such as a temperature, a wind speed, and the like, by using the button 91; the gasket 92 is disposed at a contact portion of the key 91 and the second cylinder 22 for enhancing sealing performance.

Referring to fig. 2, 10 and 11, fig. 10 is an electrical schematic diagram of a hair dryer with a noise reduction structure according to the present invention; figure 11 is an electrical schematic diagram of a heater in a hair dryer having a noise reducing structure in accordance with the present invention; in fig. 10, high-power devices such as an MCU controller and an inverter are disposed on a circuit board 31, and low-power devices such as an inductor capacitor, a rectifier bridge, and a switching power supply are disposed on a circuit board 32; the motor fan 41 is electrically connected with the circuit board 31, and the motor fan 41 works to enable outside air to enter the air inlet channel; the heating wire 624 in the heater 62 is electrically connected to the circuit board 32, and is used for heating the airflow in the air outlet channel; the temperature sensor 63 detects the temperature of the air inlet and feeds the temperature back to the MCU controller; the negative ions generated by the negative ion generator 71 are emitted to the air outlet through the discharge end 72, and the effect of smoothing hair is achieved. In fig. 11, the temperature control switch corresponds to a button 91, which can be used to adjust the heating temperature; the thermal fuse link corresponds to the fuse type fuse 64, the heating element corresponds to the heating wire 624, and the fuse type fuse 64 is connected in series with the heating wire 624 for circuit protection.

Referring to fig. 12, fig. 12 is a schematic structural view of a hair dryer with a noise reduction structure according to embodiment 2 of the present invention after a front cover is removed; the embodiment of the utility model provides an in 2, circuit board 31 is the offset setting in handle portion, and circuit board 31 separates inlet air channel for the unequal two wind channels of cross-sectional area, and the unequal two streams of air current of flow get into the air-out passageway through guide face 51 respectively in the two wind channels, and the air current reaches the effect that promotes wind-force and fall the noise at wind channel corner rounding off. Meanwhile, because the two air flows in the double air ducts are unequal, the pressures on the two sides of the air flow blowing to the guide surface 61 are inconsistent, and therefore, a rotating air flow can be formed in the air outlet channel, and the wind power is further improved.

Referring to fig. 13, fig. 13 is a simplified schematic diagram of a wire clamping structure of a hair dryer with a noise reduction structure according to embodiment 3 of the present invention; the embodiment of the utility model provides an in 3, the end of handle portion 10 sets up first card line hole 16 and second card line hole 17, superpose in the length direction of handle portion 10 in first card line hole 16 and second card line hole 17, the axis in first card line hole 16 and the axis syntropy slope in second card line hole 17, the transition department with second card line hole 17 in first card line hole 16 forms step form card line structure, and each turning rounding off of this step form card line structure, avoids the fish tail power cord.

Referring to fig. 14, fig. 14 is a simplified schematic diagram of a wire clamping structure of a hair dryer with a noise reduction structure according to embodiment 4 of the present invention; the embodiment 4 of the utility model provides a, the end of handle portion 10 sets up first card line hole 16 and second card line hole 17, superpose in the length direction of handle portion 10 in first card line hole 16 and second card line hole 17, the axis in first card line hole 16 and the axis reverse slope in second card line hole 17, the transition department with second card line hole 17 in first card line hole 16 forms step form card line structure, and each turning of this step form card line structure is passed through slickly and sly, avoids the fish tail power cord.

In other embodiments, the wire clamping structure can be reasonably designed according to actual conditions, as long as the clamping and fixing function of the power line can be realized by utilizing the self structure of the handle part.

In summary, the utility model provides a noise reduction structure and a hair drier with the same, the tail end of the handle part of the hair drier is provided with an air inlet plate, the air inlet plate is provided with a plurality of through holes, and the noise in the use of the hair drier can be effectively reduced by reasonably designing the inner diameter of each through hole, the distance between two adjacent through holes and the distance between the air inlet plate and the air inlet end of a motor fan; the air inlet plate can be made of a common PCB or other suitable materials, so that the manufacturing cost is low and the manufacturing process is simple; the air inlet plate is of a plug-in type structure, a first cover body of the handle part is provided with plug-in holes, a second cover body is provided with plug-in grooves, and the air inlet plate can be accurately plugged into the tail end of the handle part; the auxiliary holes on the air inlet plate are exposed, so that the air inlet plate is convenient to replace; the first cover body is provided with a first silencing cotton mounting area, and the second cover body is provided with a second silencing cotton mounting area which are respectively used for mounting silencing cotton, so that noise transmission is reduced; the shock pad is wrapped outside the motor to further reduce noise; the circuit board divides the air inlet channel into double air channels, when the air flow blows to the guiding piece from the double air channels, the guiding piece is provided with a guiding surface which is inclined relative to the air inlet channel and the air outlet channel, the two air flows of the double air channels can be guided to enter the air outlet channel through the guiding surface respectively, a coanda effect is formed, the air flow is in smooth transition at the corners of the air channels, the effect of improving the wind power is achieved, and the noise reduction effect is also achieved; in addition, if the air inlet channel is divided into uneven double air channels, the pressure on two sides of the air flow blown to the guide piece is inconsistent, and rotary air flow can be formed in the air outlet channel, so that the wind power is further improved; the high-power device is arranged on the circuit board, and the airflow passing through the double air channels can dissipate heat of the power device, so that the heat dissipation effect is good.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims (13)

1. A noise reduction structure of a hair dryer, the hair dryer comprising a handle portion, characterized in that: the noise reduction structure comprises a motor fan assembly and an air inlet plate which are arranged inside the handle part, the air inlet end of the motor fan assembly faces the air inlet plate, a noise reduction interval is arranged between the air inlet plate and the air inlet end of the motor fan assembly, and a plurality of through holes are formed in the air inlet plate; the axis of each through hole is parallel to the axis of the motor fan assembly or inclined relative to the axis of the motor fan assembly; the inner diameter of each through hole is 0.3-1.6mm, the distance between every two adjacent through holes is 0.1-0.5mm, and the noise reduction distance between the air inlet plate and the air inlet end of the motor fan assembly is 28-35 mm.

2. A noise reducing structure for a hair dryer as claimed in claim 1, wherein: the inner diameter of each through hole is 0.6-1.2 mm.

3. A noise reducing structure for a hair dryer as claimed in claim 1, wherein: still include the amortization cotton, motor fan subassembly with between the air inlet plate be equipped with the cotton installing zone of amortization on the handle portion, the amortization cotton install in on the cotton installing zone of amortization.

4. A noise reducing structure for a hair dryer as claimed in claim 3, wherein: the silencing cotton mounting area is of a grid-shaped arrangement through hole structure.

5. A hair drier with a noise reduction structure is characterized in that: the noise reduction structure comprises a handle part and the noise reduction structure as claimed in any one of claims 1 to 4, wherein an air inlet channel extending along a first direction is arranged inside the handle part, the noise reduction structure comprises a motor fan assembly and an air inlet plate, the motor fan assembly is arranged in the air inlet channel, and the air inlet plate is inserted into an air inlet end of the handle part; the air inlet plate with set up one section between the air inlet end of motor fan subassembly and fall the interval of making an uproar, set up a plurality of through-holes on the air inlet plate.

6. The hair dryer of claim 5, wherein: the handle part comprises a first cover body and a second cover body, the first cover body is buckled with the second cover body, and the air inlet channel is formed between the first cover body and the second cover body.

7. The hair dryer of claim 6, wherein: the first cover body is provided with an insertion hole, the second cover body is correspondingly provided with an insertion groove, the inner end of the air inlet plate is embedded into the insertion groove, and the outer end of the air inlet plate is positioned in the insertion hole.

8. The hair dryer of claim 7, wherein: a notch is formed in one corner of the outer end of the air inlet plate, and an auxiliary hole is formed beside the notch; the outer wall of the first cover body corresponds to two sides of the insertion hole are provided with a first blocking strip and a second blocking strip, the extension length of the first blocking strip is equal to the extension length of the outer end of the air inlet plate, the extension length of the second blocking strip is smaller than the extension length of the first blocking strip, and the auxiliary hole is exposed out of the end portion of the second blocking strip.

9. The hair dryer of claim 8, wherein: the inner end of the air inlet plate is arc-shaped, and the structure of the inner end of the air inlet plate is matched with that of the insertion groove; the outer end of the air inlet plate is arc-shaped, and the outer end profile of the air inlet plate is matched with the arc-shaped profiles of the first barrier strips and the second barrier strips.

10. The hair dryer of claim 6, wherein: the motor fan assembly with correspond between the air inlet plate be equipped with the cotton installing zone of first amortization on the first lid, motor fan assembly with correspond between the air inlet plate be equipped with the cotton installing zone of second amortization on the second lid, the cotton installing zone of first amortization the cotton installing zone of second amortization all is used for installing the amortization cotton.

11. The hair dryer of claim 9, wherein: the motor fan subassembly includes motor fan and shock pad, motor fan locates the inside middle section of handle portion, motor fan's fan blade orientation the air inlet plate, the shock pad wrap up in motor fan's the outside, the lateral surface of shock pad with the inner wall laminating of handle portion, the medial surface of shock pad with motor fan's cylinder side laminating.

12. The hair dryer of claim 5, wherein: the blower further comprises an air cylinder part, a heating assembly and a circuit board, an air outlet channel extending along a second direction is arranged inside the air cylinder part, and the air outlet channel is communicated with the air inlet channel; the heating assembly is arranged in the air cylinder part; the circuit board is located motor fan subassembly's air-out end low reaches and follow the length direction of handle portion extends, in order to inciting somebody to action air inlet channel separates for two wind channels at least.

13. The hair dryer of claim 12, wherein: the air duct part is internally provided with a guide piece positioned at the communication position of the air outlet channel and the air inlet channel, and the guide piece is provided with a guide surface inclined relative to the first direction and the second direction so as to guide the air flow in the double air ducts to respectively enter the air outlet channel through the guide surface.

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