CN104687708A

CN104687708A - A hand held appliance

Info

Publication number: CN104687708A
Application number: CN201410756994.XA
Authority: CN
Inventors: A.T.戈斯内伊; A.F.阿特金森
Original assignee: Dyson Ltd
Current assignee: Dyson Technology Ltd; Dyson Ltd
Priority date: 2013-12-10
Filing date: 2014-12-10
Publication date: 2015-06-10
Also published as: KR20160088407A; GB2537511B; WO2015087039A1; AU2019232917A1; JP6526724B2; GB201607396D0; GB2521142A; EP3254582A1; GB2537511A; JP2017094142A; AU2017225081A1; CN204838411U; AU2014101618B4; KR101963676B1; GB201321809D0; KR20180086531A; EP3079520A1; GB2521142B; AU2014363197A1; US20150157107A1

Abstract

A device for distributing at least one wire within a housing, comprising a central hub and at least one arm extending from the central hub towards the housing and wherein the at least one arm houses the at least one wire. The housing may be a tube having a larger diameter than the central hub. The at least one arm may comprise a pair of arms. The pair of arms may describe a Y shape. The device may be formed from a first part and a second part that may both provide a portion of the at least one arm and may both provide a portion of the hub. Also disclosed is a hand held appliance comprising a tube defining a fluid flow path from a fluid inlet into the tube to a fluid outlet from the tube and a device for distributing at least one wire to the tube.

Description

Hand-held instruments

Technical field

The present invention relates to a kind of hand-held instruments, especially hair care appliance, such as hair dryer.

Background technology

Usually, provide motor and fan, fluid sucks in body by it; Fluid can be heated before leaving body.Motor is easy to due to the such as exotic such as dirt or hair and damages, and therefore the usual fluid intake end place at hair-dryer arranges filter.Usually such utensil is provided with nozzle, and this nozzle can be connected to utensil or pull down from utensil, and changes shape and the speed of the fluid stream of ejection tool.Such nozzle can be used to effluent or the diffuse flow effluent of assembling utensil according to the demand of this moment user.

Fan and heater need electric power to play a role, and this is by providing from the internal wiring of mains power cable or the battery that is attached to utensil.

Summary of the invention

According to first aspect, the invention provides a kind of device, be used for distributing at least one wire in the enclosure, this device comprises center hub and at least one arm, at least one arm described extends from center hub towards shell, and at least one arm wherein said holds described at least one wire.

Preferably, shell is pipeline, and this pipeline has the diameter larger than described center hub.

Preferably, at least one arm described comprises a pair arm.Preferably, have two wires, this holds a wire to each arm of arm.Preferably, each arm is provided to accommodation wire, such as, if there are four wires, so will provide four arms.

Preferably, at least one arm described is symmetrical.Preferably, at least one arm described is symmetrical on cross section and/or profile or profile.When more than one arm is provided, each arm is separated symmetrically around center hub.When a pair arm is provided, preferably, this is relatively spaced apart to each diameter of arm.Preferably, this is symmetrically to arm.Preferably, this limits Y shape shape to arm.

Preferably, at least one arm described encases and at least one wire described in electric isolution.

Preferably, wire by cable transfer to shell.Preferably, cable can be connected to power supply in the end away from shell.Alternatively, wire extends from internal electric source, such as battery or fuel cell.

Preferably, center hub holds cable.

Preferably, this device is formed by molding plastic material.

Preferably, this device is formed by Part I and Part II.

Preferably, Part I and Part II both provide a part at least one arm described.Because wire and optional cable relative to the location of in Part I and Part II, and when the apparatus is assembled, can remain on this position by another part, this simplify assembling.

Preferably, Part I and Part II both provide a part for hub.Because wire and optional cable relative to the location of in Part I and Part II, and when the apparatus is assembled, can remain on this position by another part, this also simplifies assembling.

Preferably, described shell is the handle of utensil.

According to second aspect, the invention provides a kind of hand-held instruments, comprise pipeline, this pipeline limits and enters the fluid flow path of pipeline to the fluid issuing of pipeline from fluid intake, and be used for distributing the device of at least one wire to pipeline, wherein this device comprises center hub and at least one arm, and at least one arm described extends from center hub towards pipeline, and at least one arm wherein said holds described at least one wire.

Preferably, at least one arm described extends across fluid flow path.Preferably, at least one arm described is cross section symmetry.Preferably, at least one arm described extends symmetrically relative to fluid flow path.Preferably, have two arms, and each arm is symmetrical.When have one with upper arm time, these arms are preferably equally spaced around center hub.When have one with upper arm time, the cross section that each arm exposes in fluid flow path, length is substantially the same with area occupied.Therefore, each arm has identical exterior contour or profile.Each in these features decreases the turbulent flow produced by arm in fluid flow path, thus the generation of minimum pressure loss and noise.

In preferably embodiment, have two wires, and at least one arm comprises two arms, each arm holds a wire.

When a pair arm is provided, preferably, two arm diameters are relatively spaced apart.

Preferably, at least one arm described is cross section symmetry.Therefore, fluid flows equably around every side of this at least one arm.Like this around the formation of the non-uniform flow of arm, itself otherwise can turbulization and noise.

Preferably, this limits Y shape shape to arm.This shape has two benefits, and the path of wire from center hub to pipeline is bending, and therefore the possibility of knotting of wire is less, and it both provides axial reinforcement to any power be applied on cable.Preferably, center hub is roughly in the middle position of pipeline.

Preferably, at least one arm extends from center hub towards the fluid issuing of pipeline.In the present embodiment, at least one arm described extends along fluid flowing in fluid flow path.

Preferably, at least one arm described is configured as the interference and turbulent flow that produce in minimize fluid flow path.Preferably, at least one arm described has the taper back side.Preferably, the described taper back side has the tapering of 45 ° to 0 °.Alternatively, at least one arm described has symmetrical airfoil cross-section.Which reduce fluid to be separated, and the generation of downstream end place turbulent flow at least one arm described.

In preferably embodiment, this device at least comprises one and strengthens rib, and it is radial from center hub towards pipeline extends.Preferably, at least one strengthens rib axially extending at least partially along pipeline.

One or more enhancing rib preferably extends from least one arm towards fluid intake.

At least one enhancing rib described adds the hoop strength (loop strength) of this pipeline, and decreases when cable is towards pipe bending, is delivered to the stress of pipeline.

Preferably, at least one enhancing rib bends towards the fluid intake of pipeline.Although strengthen the benefit that rib has structurally supporting pipeline, it has the minus effect of obstruction fluid intake.In order to minimizing obstruction or limit fluid enter fluid intake as far as possible, the thickness of this rib reduces towards entrance.When strengthening rib and extending from arm, this rib is around cable moulding.

Preferably, described at least one wire by cable transfer to shell.Preferably, cable can be connected to power supply in the end away from shell.

Preferably, center hub holds cable.

Preferably, this device is formed by molding plastic material.

Preferably, this device is formed by Part I and Part II.Preferably, Part I and Part II both provide a part at least one arm described.Preferably, Part I and Part II both provide a part for hub.

Preferably, described pipeline comprises wire guide, and it extends along pipeline towards the fluid issuing of pipeline at least in part.

Preferably, described at least one wire is kept apart from fluid flow path by wire guide.

Preferably, at least one arm aligns with this wire guide, thinks that wire provides and passes described device and the path of advancing along described pipeline from cable.

Preferably, this pipeline comprises the handle of this utensil.

According to the third aspect, the invention provides a kind of hair care appliance, comprise pipeline, this pipeline limits and enters the fluid flow path of pipeline to the fluid issuing of pipeline from fluid intake, and be used for the device of distribution conductors to pipeline, wherein this device comprises center hub and at least one arm, and at least one arm described extends from center hub towards pipeline, and at least one arm wherein said holds described wire.

Preferably, this utensil is hair dryer.Preferably, this pipeline comprises the handle of this utensil.

According to fourth aspect, the invention provides a kind of hand-held instruments, comprise body; Handle, has the first end being connected to body and the second end comprising fluid intake; Fluid flow path, is advanced towards body from fluid intake by handle; Fan unit, for along fluid flow path pumping fluid; And cable, extend from the second end of handle, for powering to fan unit, wherein from least one wire of cable by the wall guided along handle.

Preferably, the wall of described handle comprises along handle at least one groove extending longitudinally, for holding at least one wire from cable.In the present embodiment, cable has two wires, and therefore preferably, this wall comprises two along handle groove extending longitudinally, and each groove is used for holding a wire of cable.Preferably, two grooves approximate diameter in an ancient piece of jade, round, flat and with a hole in its centre is relative.

Preferably, this wall is formed by two semicylinders extended from first end along handle.Preferably, two semicylinders abut against together in edge along the longitudinal, form wall.

Preferably, at least one wire from cable is contained in longitudinal edge.

Preferably, first of two semicylinders comprises the groove be formed in longitudinal edge, and at least one wire is contained in groove.Preferably, first of two semicylinders comprises a pair groove, and each longitudinal edge of first wherein along two semicylinders is provided with a groove.Alternatively, or additionally, second of two semicylinders comprises at least one other groove be formed in longitudinal edge.Preferably, at least one other groove described is set up and separates from described groove radial direction.Alternatively, when two semicylinders abut against together, at least one other groove is adjacent with described groove.

Preferably, handle comprises end wall, and cable extends through end wall.Preferably, cable is roughly positioned at the center position of end wall.

Preferably, cable holding is in cable guide.Cable guide is additionally for being used for the device of in handle distribution conductors.Preferably, cable and fluid flow path, around cable, are kept apart by described cable guide.

Preferably, described cable guide comprises central cylinder, is used for holding cable.Preferably, described cable guide comprises at least one arm further, is used at least one wire from cable guide to wall.

Preferably, at least one arm described is configured as the flowing interference produced in minimize fluid flow path.

Preferably, at least one arm described has the taper back side.Alternatively, at least one arm described has symmetrical airfoil cross-section.

Preferably, at least one arm described extends to inwall towards body from central cylinder along fluid flow path.Preferably, cable guide comprises two arms, is radially spaced around cable guide, and one of them holds live wire, and another one holds neutral conductor.Preferably, cable guide is Y shape.Preferably, cable guide is formed by two parts.Preferably, one in the part of cable guide and two semicylinders is integrally formed.Preferably, the Part II of cable guide and second of two semicylinders are integrally formed.

Preferably, the wall of handle is formed by molding plastic material.

Preferably, handle comprises outer wall, and the wall of its thorny handle extends.Therefore, the wall of handle is inwall.

Preferably, fan unit is arranged in the handle of utensil.

Preferably, fan unit comprises motor and impeller.

Preferably, at least one wire is kept in a groove at least part of length of handle, and described at least one wire can keep in a groove in roughly whole decreased food.Groove, any one in a pair groove and at least one other groove described extends along wall at least in part.

Alternatively, described at least one conductor part ground is kept by groove, and is partly kept by passage.Preferably, described passage is radially spaced from the longitudinal edge of two semicylinders.Therefore, in an embodiment, groove is formed in longitudinal edge, and passage and groove are radially spaced.This passage is preferably arranged on the central authorities of one of them of two semicylinders and extending longitudinally along this semicylinder, and the wall of handle is preferably formed by two semicylinders.Passage is preferably arranged on handle to be held in the region of fan unit.Passage reason is provided to be the assembling being convenient to utensil.Therefore, at least one wire is placed in the channel, and fan unit and shell to be positioned in semicylinder and at least one wire, to keep wire in place around fan unit, then at least one wire along groove in wall towards cable guide.

According to the 5th aspect, the invention provides a kind of hair care appliance, comprise body; Handle, has the first end being connected to body and the second end comprising fluid intake; Fluid flow path, is advanced towards body from fluid intake by handle; Fan unit, for along fluid flow path pumping fluid; And cable, extend from the second end of handle, for powering to fan unit, wherein from least one wire of cable by the wall guided along handle.

Preferably, hair care appliance is hair dryer or hot moulding brush.

According to the 6th aspect, the invention provides a kind of hand-held instruments, comprise pipeline and switch, switch comprises user-operable button, electrical contact and push rod, wherein, button is accommodated on the outer surface of pipeline, electrical contact is accommodated on the inner surface of pipeline, and push rod physically connects button to electrical contact.

Preferably, pipeline is substantial circular, electrical contact be received into button diametrically.

Preferably, described pipeline is the handle of utensil.

Preferably, pipeline comprises inwall, and electrical contact is accommodated on inwall.Preferably, inwall defines the fluid flow path through handle.

Preferably, switch comprises guide rod further, for guiding push rod across pipeline.Preferably, guide rod forms a part for the inwall of pipeline, and extends across pipeline extension at least partly.Preferably, guide rod extends across pipeline radial direction.Preferably, guide rod is supported by electrical contact at least partly.Preferably, electrical contact embeds the inwall of pipeline at least in part.

Preferably, guide rod is across pipeline support push rod.

Preferably, guide rod extends from inwall across fluid flow path.Preferably, guide rod is formed the generation reducing the turbulent flow when fluid flows along fluid flow path.Preferably, push rod is the shape of general cylindrical.Preferably, guide rod comprises hole, and push rod extends through hole.

Preferably, guide rod has downstream end and upstream end thereof, and upstream end thereof is rounded.Preferably, guide rod has downstream end and upstream end thereof, and downstream end is sharp.The downstream end of guide rod can be aerofoil profile or make the flow separation coming in minimize fluid flow path in the taper back side, the generation of turbulent flow and noise.

According to the 7th aspect, the invention provides a kind of hair care appliance, comprise pipeline and switch, switch comprises user-operable button, electrical contact and push rod, wherein, button is accommodated on the outer surface of pipeline, electrical contact is accommodated on the inner surface of pipeline, and push rod physically connects button to electrical contact.

Preferably, hair care appliance is hair dryer.

According to eighth aspect, the invention provides a kind of hand-held instruments, comprise body; Handle; Fluid flow path, enters from fluid intake the fluid issuing that handle advances to body; And deflector, wherein fluid flow path is non-directional, and deflector guides the flowing in fluid flow path.

Preferably, fluid flow path flows along first direction in handle, and flows along second direction in body.

Preferably, deflector is provided for the flowing between guide handle and body.

Preferably, deflector extends to the space limited in body from handle.

Preferably, handle comprises wall, and it defines fluid flow path in handle.

Preferably, deflector forms the extendible portion of this wall.

Preferably, body and handle are molded as Part I and Part II.Preferably, this deflector is formed by handle portion and body part.Preferably, the handle portion of deflector is molded as the part of Part I.Preferably, the body part of deflector is molded as the part of Part II.

Preferably, the body part of deflector forms the extendible portion of handle wall in body.

Preferably, the handle portion of deflector is molded as the part of Part I.Preferably, the body part of deflector is molded as the part of Part II.

Preferably, body comprises outer wall, and handle comprises wall, its each limit fluid flow path from fluid intake to fluid issuing at least in part.

Preferably, the Part I of utensil comprises the Part I of the wall of handle.Preferably, the Part II of utensil comprises the Part II of the outer wall of body and the wall of handle.Preferably, when Part I and Part II assembled time, complete handle wall produces.Handle wall is preferably located in the downstream of fluid intake.Preferably, handle comprises outer wall, and it around described wall, and comprises fluid intake.

Preferably, deflector is arc.Preferably, deflector is radial strut.

Preferably, the fluid flow path in body is roughly orthogonal to the fluid flow path in handle.

Preferably, body has upstream end thereof and downstream end, fluid issuing be positioned at downstream end place or near.

Preferably, the upstream end thereof of contiguous body orientated as by handle.

Preferably, PCB is provided in body, between handle and the upstream end thereof of body.Preferably, deflector reduces from the interaction between the fluid stream in handle and PCB.

Preferably, deflector comprises groove.

Preferably, PCB comprises flexible extension, and it extends to the control button handle from pcb board.

Preferably, flexible extension is through the groove of deflector.

According to the 9th aspect, the invention provides a kind of hair care appliance, comprise body; Handle; Fluid flow path, enters from fluid intake the fluid issuing that handle advances to body; And deflector, wherein fluid flow path is non-directional, and deflector guides the flowing in fluid flow path.

Preferably, hair care appliance is hair dryer.

Accompanying drawing explanation

To describe the present invention with reference to the accompanying drawings by way of example now, in accompanying drawing:

Fig. 1 shows the cross-sectional view through utensil according to the present invention;

Fig. 2 shows the stereogram according to device of the present invention;

Fig. 3 shows the cross-sectional view of the device through Fig. 2;

Fig. 4 a shows the top view of the device in Fig. 3;

Fig. 4 b show in further detail the strain relief member on cable;

Fig. 5 shows the stereogram according to device of the present invention;

Fig. 6 shows the cross-sectional view of the arm through the device in Fig. 5;

Fig. 7 a shows the cross-sectional view of the handle through utensil;

Fig. 7 b shows the cross-sectional view through the device in the handle of utensil;

Fig. 8 a and Fig. 8 b shows the varying cross-section figure of the inwall of the handle through utensil;

Fig. 9 a and Fig. 9 b shows the exploded view of off/on switches;

Figure 10 a and Figure 10 b shows the varying cross-section figure through off/on switches;

Figure 11 a and Figure 11 b shows the axonmetric chart of the front and rear of off/on switches; And

Figure 12 shows the interior details of the part of the handle of utensil.

Detailed description of the invention

Fig. 1 shows hair dryer 10, and it has handle 20 and body 30.This handle has first end 22 and the second end 24, and first end 22 is connected to body 30, and the second end 24 is away from body 30 and comprise main-inlet 40.Electric power is fed to hair dryer 10 by cable 50.Provide plug (not shown) at the far-end of the cable 50 away from hair dryer 10, plug can be provided to such as main power source or the electrical connection to battery pack.

Body 30 has first end 32 and the second end 34, and can be considered to have two parts.Part I 36 extends from first end 32, its for tubulose and there is basically identical diameter, Part II 38 extends in conjunction with Part I 36 from the second end 34.Part II 38 is conical by its shape and the diameter of the Part I 36 of its diameter along its length from body changes to the small diameter of the second end 34 of body.

Handle 20 has exterior wall 200, and it extends to the far-end 24 of handle from body 30.At far-end 24 place of handle, end wall 210 extends across exterior wall 200.Cable 50 enters hair dryer through this end wall 210.Main-inlet 40 in handle 20 comprises the first hole 42 and the second hole 46, this first hole 42 around and outer wall 200 along handle extend, this second hole 46 across and end wall 210 through handle 20 extend.This cable 50 is generally positioned on the middle of end wall 210, so extend from the center of handle 20.Outer wall 200 and the inwall 220 of end wall 210 and handle are orthogonal.

Preferably, cable 50 medially extends from handle 20, because this means that hair dryer is balance, no matter which kind of orientation handle 20 is in user's hand.In addition, if user moves the position of its hand on handle 20, pulling from cable 50 can not be subject to, because it does not change position relative to hand when hand moves.If cable is biased or closer to the side of handle, then the distribution of weight of hair dryer will change along with orientation, and this can make user divert one's attention.

In the upstream of main-inlet 40, fan unit 70 is provided.This fan unit 70 comprises fan and motor.This fan unit 70 pumping fluid flows towards body 30 through fluid flow path 400 (it extends from main-inlet 40) through main-inlet 40, and enters body 30 at handle 20 and body 30 binding site 90 place.Fluid flow path 400 continues through body 30, and the second end 34 towards body is advanced, and arrives primary fluid outlet 440 through heater 80, is left major fluid flow path 400 at this place by the fluid of fan unit suction.Major fluid flow path 400 is nonlinear and flows through handle 20 along first direction and flow through body 30 along second direction (orthogonal with first direction).

Body 30 comprises outer wall 360 and pipeline 310.Major fluid flow path 400 along body from the joint portion 90 of handle 20 and body 30, extend towards the primary fluid outlet 440 of the second end at body 30 between outer wall 360 and pipeline 310.

Another fluid flow path is provided in body, and this flowing not directly by fan unit or heater process, but produces to be sucked through the action of the main flow of hair dryer by fan unit and enters hair dryer.This fluid stream is entrainmented by the fluid flowing through major fluid flow path 400 and enters hair dryer 400.

The first end 32 of body comprises fluid intake 320 and the second end 34 of body comprises fluid issuing 340.Fluid intake 320 and fluid issuing 340 both at least in part by pipeline 310 (its be body 30 inwall and in body and extend along body) limit.Fluid flow path 300 extends to fluid issuing 340 from fluid intake 320 in pipeline.

Internal pipeline is formed by taper or flare portion 350 and tubular portion 312.At first end 32 place of body 30, conical section 350 extends between tubular portion 312 and outer wall 360.Conical section 350 at least partially defines fluid intake 320.At the second end 34 place of body, gap 370 is provided between outer wall 360 and tubular portion 312, and this gap 370 limits primary fluid outlet 440.Primary fluid outlet 440 is ring-type and around fluid flow path 300.Primary fluid outlet 440 can be inner, thus major fluid flow path 400 converges with fluid flow path 300 in body 30.Alternatively, major fluid flow path 400 is outside, and leaves from body 30 independently relative to from the fluid of fluid flow path 300 at fluid issuing 340.

This pipeline 310 be hair dryer can be close from the outside of hair dryer interior wall.Therefore, pipeline 310 is exterior wall of hair dryer.Pipeline 310 is recessed in body 30, and the conical section 350 between the tubular portion 312 being therefore connected to exterior wall 360 and pipeline 310 tilts relative to outer wall 360.

The PCB 75 comprised for the control electronic equipment of hair dryer is located in body 30, close to sidewall 350 and fluid intake 320.This PCB 75 is annular shape and extends between pipeline 310 and outer wall 360 around pipeline 310.This PCB 75 is communicated with major fluid flow path 400 fluid.This PCB 75 hydrodynamic form flow path 300 is extended and is separated from fluid flow path 300 by pipeline 310.

This PCB 75 controling parameters, the temperature of such as heater 80 and the rotary speed of fan unit 70.PCB 75 is connected to heater 80 by internal wiring (not shown) electrically, fan unit 70 and cable 50.Control button 62,64 is provided and is connected to PCB 75 and can select from the scope of such as temperature setting and flow rate to make user.

In use, fluid is inhaled into major fluid flow path 400 by the effect of fan unit 700, is heated alternatively by heater 80, then discharges from primary fluid outlet 440.This treated fluid causes fluid to be entrainmented at fluid intake 320 place entering fluid flow path 300.This fluid is in the second end 34 place of body and treated combination of fluids.Therefore, increased by being entrainmented fluid by the fluid of fan unit and heater process.

Now special with reference to Fig. 2 to 4 and 7b, device 100 for distribution conductors 102,104 has the center hub 110 and a pair arm 120,122 that hold cable 50, when guiding wire from center hub 110 towards the inwall 220 of the handle 20 of utensil 10, this holds wire 102,104 to arm 120,122.

Inwall 220 has the diameter larger than center hub 110, and therefore wire 102,104 extends radially outwardly towards inwall 220 from center hub 110 along with arm 120,122, forms the device 100 of roughly ' Y ' shape.

Inwall 220 is shaped and punches reduce the turbulent flow that produces in fluid flow path and alleviate noise.Inwall 220 has downstream end 222, and it is radially bending to provide a space between outer wall 200 and inwall 220 from outer wall 200, is wherein positioned with inner lining material 202.Inner lining material 202 absorbs the sound and/or vibration that produce in handle 20 together with the perforation 422 in inwall 220.Inwall 220 guides in the bending narrower transverse cross-sectional area of being located from fluid intake 40 towards inner lining material 202 by fluid at downstream end 222 place.

Device 100 has center hub 110, and it is positioned at the middle position of the fluid stream flowing to inwall 220 from fluid intake 40.Center hub 110 is spaced apart away from the downstream end 222 of inwall 200, to reduce the collision of the fluid of flowing in center hub 110 fluid flow path 400.If center hub 110 is spaced apart near the downstream end 222 of inwall 220, so noise can produce along with the turbulent flow in fluid.

In this example, device 100 is formed by two part 100a, 100b, two each half providing center hub 110 respectively of part, and the half of each arm 120,122.Therefore, cable 50 can be laid in one of them of two part 100a or 100b, wire 102 subsequently, 104 can relative to each arm 120, one of them half portion of 122 is placed, and cable 50 is fixed in center hub 110 by another part attachment of device 100, and by wire 102,104 are fixed on their corresponding arms 120, in 122.

In addition, inwall 220 is formed by two part 220a, 220b and advantageously, and two part 220a, 220b of inwall 220 are with two part 100a, 100b correspondences of device 100 and align.Therefore, the Part I 100a of device 100 aligns with the Part I 220a of inwall 220, and the Part II 100b of device aligns with the Part II 220b of inwall 220.This simplify the assembling of the parts be contained in inwall 220.Such as, when the correspondence one that cable 50 and wire 102,104 are placed on two parts of device 100 is interior, the parts that such as fan unit 70 is such can be placed in one of two parts of inwall 220.When all parts are correctly alignd, together with two parts of inwall 200 can be incorporated into device 100, to form the inner handle 26 of hair dryer 10.

Two part 220a, 220b of inwall 220 each be semicylinder, it forms central tube or the inner handle 26 of handle 10 together.In order to make two part 100a, 100b alignment of device 100 or correspond to semicylinder, two part 100a, 100b of device 100 are also formed as identical half portion, and two arms 120,122 are formed around center hub 110 diameter relatively spaced apart.

Device 100 is formed to make arm 120, and 122 each is roughly similar, and can in hair dryer 10 along and two part 220a, 220b of inwall 220 arbitrary orientation of aliging use.

Wire 102,104 are contained in arm 120, and in 122, arm can be the housing of hollow, but is alternatively solid, and has groove, are suitable for holding the wire through this arm.Two grooves can be completely formed in in two part 100a, 100b of device, and each alternatively in two grooves can be rived between part 100a, 100b two of device 100.

Handle 20 has fluid intake 40 at an end 24 place, and cable 50 is through this end 24.Because cable 50 is positioned at the approximate center of handle 20, the center hub 110 of device 100 is positioned at center or the middle position of handle 20 equally.Between the operating period of hair dryer 10, fluid flows through fluid intake 40, through device 100, enters the fluid flow path 400 that inwall 220 limits.

The arm 120,122 of device 100 extends across fluid flow path 400.Asymmetric arbitrarily in order to what minimize in flowing, arm 120,122 is symmetrical.Resist to provide on cable 50 intensity that pulls, when arm 120,122 when moving from center hub 110 towards inwall 220, and arm 120,122 extend away from fluid intake 40.In other words, arm 120,122 extend towards the fluid issuing 440 of fluid flow path 400.In addition, arm 120,122 are shaped as and minimize turbulent flow.Arm 120,122 bend to maximum gauge from downstream end 124, and then tapered towards upstream end thereof 126.Arm 120,122 have the taper back side.Arm can alternatively be formed by airfoil cross-section.It will be understood by those skilled in the art that this object is the generation of minimize fluid separation and/or turbulent flow.In this embodiment, device 100 additionally has structure function, and has the support column 112,114,116,118 that four radial separations open.A pair support column 114,118 is from arm 120, and 122 extend towards fluid intake 40; Another is to support column 112, and 116 extend from center hub 110 towards the outer wall 200 of handle 20.The outer wall 200 of handle 20 is thin sleeves, it is supported from body 30 to the far-end 222 of inwall 220 by inwall 220, but, because inwall 220 does not extend to above fluid intake 40, outer wall 200 along around and along handle outer wall 200 extend first group perforation 42 length do not supported.Four support columns 112,114,116,118 extend radially outwardly from the center hub 110 of device 100, to contact outer wall 200 and extending longitudinally towards the end 24 of handle 20 from the far-end 222 of inwall 220.

Support column 112,114,116,118 is tabulars, and has the end 128 of rounding, to reduce quantity of material in support column, and the obstruction of the first perforation 42 in minimize fluid entrance 40.Support column 112,114,116,118 strengthen handles 20 and hoop strength (hoop strength) around entrance 40 place, therefore when hair dryer 10 falls, support column alleviates the damage that may occur.Support column 112,114,116,118 are additionally protected handle 20 not to be damaged when cable 50 bends towards handle 20.

In this example, two part 100a, 100b of device 100 are fixed together with the screw 108 being inserted into screw hole 106.This has two main functions: first it prevent wire 102,104 in manufacture with misplace between the operating period afterwards, and may be sandwiched between arm 120 and the parts of 122; Second its formation is used for a part for the strain relief member of cable 50.

Cable 50 has overmold 52, and its outside at handle 20 and inside are all around cable 50.The center hub 110 of device 100 comprises interior grooves 54, and it is suitable for holding cable 50 and overmold 52.Interior grooves 54 comprises some and extends radially inwardly the lug 56,58,60 entering interior grooves 54 from center hub 110.These lugs 56,58,60 groove 130 (see Fig. 1) corresponding in overmold 54 engages.When two part 100a, 100b of device 100 are screwed, overmold 54 and cable 50 are firmly attached in handle 20, and if cable 50 pulled, stop it to be separated from handle 20.

Overmold 52 is made up of two parts, Part I is positioned at inner plastic overmold moulded parts 52a, orientate the end (wire 102 closing on cable 50 as, 104 is each since cable 50 salient point), and rubber over mold part 52b, extend in the outside of handle 20 on plastic overmold moulded parts 52a, along cable 50.Cable tie member 48 is used for the different piece of overmold 52 to be secured together.

Special in Fig. 7 a, 8a, 8b and Fig. 9, inwall 220 comprises a pair groove 224,226, and an edge 228,230 of each Part I 220a along inwall 220 is located in this example.Groove 224,226 hold the wire 102,104 extending to PCB 75 from cable 50.Therefore, wire 102,104 receive protection and can not form obstacle or be encountered, and safely away from fluid flow path 400, the words in fluid flow path 400 they understand fluid flow and produce some interference.

Cable 50 comprises live wire (live wire, live wire) 104 and neutral conductor (zero line, neutralwire) 102.Neutral conductor 102 passes from the device 100 for distribution wires and enters a groove 226, and live wire 104 passes from the device 100 for distribution wires and enters the second groove 224.From the wire 102,104 of cable, at two grooves 224, in 226, be connected to inside live wire 104 ' and the internal neutral wire 102 ' of utensil with connector spades.

Fan unit 70 is supported in inwall 220 by two annular seatings, and these two annular seatings longitudinally keep motor in inwall 220 and thus in handle 20.First annular seating 242 is set to the upstream end thereof being close to fan unit 70, and second annular seating 244 is set to the downstream end being close to fan unit 70.Groove 224,226 can continue across fan unit 70, but in this embodiment, groove 224, and 226 to run into the place of first annular seating 242 at them discontinuous.Inner live wire 104 ' and internal neutral wire 102 ' both from their corresponding grooves 224,226 around inwall 220a radial directed, then longitudinally advance along the pair of channels 240 be formed in inwall 220a.This extends through the first annular seating 242 to passage 240 along inwall 220a, and by the second pedestal 244.This is designed to receive inner live wire 104 ' and internal neutral wire 102 ' to passage 240, and keeps these wires in place around fan unit 70.

This is open in wire holder 232 to the downstream 240b of passage 240, and this wire holder 232 extends to the electrical contact 252 of off/on switches 250 from the second annular seating 244.When live wire 104 is connected to inner live wire 104 ' by connector spades 236, and neutral conductor 102 is when being connected to internal neutral wire 102 ' by connector spades 238, wire holder 232 is designed to the flaccid part holding inside live wire 104 ' and the internal neutral wire 102 ' caused by implement construction.

Inner live wire 104 ' is connected to PCB by safety switch and fuse (not shown) from the electrical contact 252 of off/on switches 250, and internal neutral wire is directly connected to PCB 75, with completing circuit.The motor of fan unit is electrically connected to PCB 75 by wire 72,74 (Fig. 1, Figure 10 b).Figure 10 c illustrates in greater detail the parts of off/on switches.

Special in Fig. 8 a to Figure 11 b, off/on switches 250 comprises user can press button 64a with switch hand dryer 10, and electrical contact 252 and physical connection button 64a are to the push rod 260 of electrical contact 252.Push rod 260 has first end 256, and its engaging user can action button 64a, and far-end 258, and it engages electrical contact 252.Therefore, when user presses the button 64a, push rod 260 is pushed against electrical contact 252, causes opening or closing of hair dryer 10.Button 64a is installed to the outer surface 248 of the outer wall 200 of handle 20.Electrical contact 252 is relatively arranged on by diameter on the inner surface 246 of the inwall 220 of handle 20.Push rod 260 extends across the inside of handle 20, and extends across the fluid flow path 400 flowing through handle 20.

In order to keep the relative position of push rod 260 and electrical contact 252, guide rod 270 is provided.Guide rod 270 has the first end 272 being attached to inwall 220, and away from the second end 274 of first end 272.Push rod 260 is general cylindrical, and extends through hole 266, and this hole extends through guide rod 270.

Guide rod 270 around push rod 260, or extends around it, supports push rod 260 and keeps push rod 260 relative to the position of button 64a and electrical contact 252.Guide rod 270 is roughly tear drop shape, has the upstream end thereof 276 of rounding and the downstream end 278 of point.The cross section obtained has circular upstream end thereof and leg-of-mutton downstream end.

Back-moving spring 290 is provided between electrical contact 252 and push rod 260, to provide the just location of button 64a, to indicate the position of the switch of electrical contact 252.

Fluid flow path 400 is non-directional, at handle 20 inner fluid flow path 400 along first direction flowing, and flows along second direction at body 30 inner fluid flow path.Connecting portion 90 place between handle 20 and body 30, (Figure 10 a) is provided deflector 330; Deflector 330 has two major functions.First function reduces noise, and the second function is for providing circuit from PCB 75 to the data cube computation of the second button 64b on handle 20.

Fluid flows inside handle 20 from fluid intake 40 fluid flow path 400.Connecting portion 90 place between handle 20 and body 30, fluid flow path 400 turns to 90 °.Due to the position of PCB75, in fluid flow path 400, the fluid of flowing often interacts with PCB, causes turbulent flow and noise.Deflector 330 is provided to stop fluid to be dispersed towards first end 32 at least in part, and directly and PCB 75 interact.

In addition, first end 32 place that PCB 75 to be contained in body 30 contiguous body 30 to be formed between pipeline 310 and outer wall 360 in space.Deflector 330 additionally stops fluid directly to flow to PCB 75 from handle 20 at least in part.

Deflector 330 is arc and bends with the curvature of the inwall 220 of simulating handle 20, and it upwards extends from switch 250 and partly enters body 30.Deflector 330 in this embodiment, has outward flange 330a, 330b, and these two edges are roughly aligned in the longitudinal edge 286,288 of the Part II 220b of inwall 220.Wind deflector 330 is formed by two parts, handle portion 322 and body part 362.Handle portion 332 is molded with the Part II 220b of inwall 220, and is extended towards body 30 by Part II 220b.Body part 362 is molded with the outer wall 360 of body 30, and is extended to further by deflector in the space in body 30.

Deflector 330 comprises the groove 332 be provided in handle portion 332, to guide the data cube computation of flexible extension 334 form between PCB 75 and button 64b.. in view of opening/closing button 64a is a part for analog switch, for button 64b not necessarily, this button 64b such as changes control and arranges or provide cold wind ejection function such switch.Flexible extension 334 is connected to PCB 75 at first end 336 place, and in the fluid flow side of deflector 330, the connecting portion 90 between thorny handle 20 and body 30 folds, and therefore, flexible extension 334 is in fluid flow path 400; Then be passed in the groove 332 formed in the handle portion 322 of deflector 330 and advance to button 64b, to the second end 338.Between groove 332 and the second end 338 of flexible extension 334, flexible extension 334 is between the inwall 220 and outer wall 200 of handle 20.

Tie point 328 is provided as from inwall 220 upright, with near the second end 338 around button 64b positioning flexible extension 334.Potted component 342 is provided between button 64b and flexible extension 334, in case fluid flow path 400 leaks around any fluid of button 64b.

Button 64b has two parts, and Part I 68 is slightly outstanding from handle 20 user's pressure caps, and Part II 66 comprises electrical contact 660.When user presses Part I 68, Part II 66 is pushed to flexible extension 334, and the electrical contact 660 extended from Part II 66 realizes the electrical connection with flexible extension 334.

In order to provide additional support to button 64a, 64b and association part thereof, centre housing 160 is provided, and it is between the inwall 220b and outer wall 200 of handle, around button 64a, 64b.Centre housing 160 is suitable for keeping the Part II 66 of push rod 260 and button 64b in handle 20.Centre housing 160 comprises the first hole 162, and the first end 256 of push rod 260 is given prominence to through this first hole 162.Flange 256a extends around the first end 256 of push rod 260, and flange 256a has and has larger diameter than the first hole 162.Flange 256a thus keep push rod 260 in centre housing 160.

Inwall 220b comprises hole 218, and the far-end 258 of push rod 260 can pass this hole 218, but first end 256 can not.When button 64a is pressed, the first end 256 of push rod 260 is urged radially inwardly, but the scope moved radially is limited by the hole 218 in inwall 220b.Hole 218 and flange 256a prevent from first end 256 from moving radially exceeding scheduled volume.This provide protection, to prevent excessive power to be applied to electrical contact, and push rod 260 is provided support.

Centre housing 160 has the second hole 164, and the Part II 66 of button 64b is given prominence to through this second hole 164.The Part II 66 of button 64b also has flange 66a, extends around Part II 66, and has the diameter larger than the second hole 164, thus the position that the Part II 66 of hold button 64b mediates between wallboard 160 and flexible extension 334.Inwall 220b keeps flexible extension 334 in place by anchor point 328.

The arm 120,122 of device 100 and/or groove 226,228 preferably encapsulate their hold respective wire, with by them from fluid flow path electric isolution.

The outer wall 360 of body 30 and the inwall 220 of handle 20 are preferably formed by molding plastic material.Suitable plastic material comprises Merlon, glass-filled PPA (polyphthalamide (Polyphthalamide)), PPS (polyphenylene sulfide (Polyphenylene Sulphide)), LCAP (liquid crystal aromatic polymer (Liquid Crystal Aromatic Polymer)) or PEEK (poly-diether ketone (Polyether ether ketone)), and it will be appreciated by one of skill in the art that this list is not exhaustive, and other material can be used to alternative manufacture method.The outer wall 200 of handle 20 can by some suitable material manufactures, but preferably by aluminium, aluminium alloy, steel or stainless steel manufacture.

The inwall 200 of device 100 and handle 20 can be molded integratedly.The outer wall 360 of body 30, the Part I 220a of inwall and the Part I 100a of device is preferably molded as first of utensil, and the Part II 100b of the Part II 220b of inwall 200 and device 100 is preferably molded as second of utensil.Deflector 330 is not to be molded into two parts, and alternatively it also can be molded with first or second of utensil integratedly.

In the embodiment described, motor and fan are positioned at the handle of utensil, and this is dispensable.Pipeline 300 is not to provide another fluid flow path, and the whole region that conical section 350 can define across outer wall 360 extends, and pipeline 300 can be used for holding fan unit.

Describe the present invention in detail about hair dryer, but it is applicable to suction fluid and guides any utensil that this fluid flows out from utensil.

This utensil can use or can not use together with heater together with heater; The effect that fluid flows out at high speeds has oven dry effect.

The fluid flowing through utensil is generally air, but can be the various combination of one or more gases, and can comprise additive, and for improving utensil performance or utensil to the impact exporting the object aimed at, this object is such as the hair style of hair and hair.

The invention is not restricted to the detailed description provided above.Various deformation form it will be apparent to those of skill in the art.

Claims

1. a device, is used for distributing at least one wire in the enclosure, and this device comprises center hub and at least one arm, and at least one arm described extends from center hub towards shell, and at least one arm wherein said holds described at least one wire.

2. device according to claim 1, its housing is pipeline, and this pipeline has the diameter larger than described center hub.

3. device according to claim 1 and 2, at least one arm wherein said comprises a pair arm.

4. device according to claim 3, wherein this is symmetrical to arm.

5. a device, be used for distributing at least one wire in the enclosure, this device comprises the arm of center hub and a pair symmetry, and this extends towards shell from center hub the arm of symmetry, and wherein this holds described at least one wire to arm.

6. the device according to claim 3 or 5, wherein has two wires, and this holds a wire to each arm of arm.

7. the device according to claim 3 or 6, wherein this is relatively spaced apart to each arm diameter of arm.

8. device according to claim 7, wherein this limits Y shape shape to arm.

9. device according to claim 1 or 5, at least one arm wherein said encases and at least one wire described in electric isolution.

10. a device, be used for distributing at least one wire in the enclosure, this device comprises center hub and at least one arm, at least one arm described extends from center hub towards shell, and at least one arm wherein said holds described at least one wire, at least one arm wherein said encases and at least one wire described in electric isolution.

11. devices according to claim 1, wherein said at least one wire by cable transfer to shell.

12. devices according to claim 11, wherein cable can be connected to power supply in the remote end part away from shell.

13. devices according to claim 11 or 12, wherein center hub holds this cable.

14. devices according to claim 1, wherein device is formed by molding plastic material.

15. devices according to claim 1, wherein device is formed by Part I and Part II.

16. 1 kinds of devices, be used for distributing at least one wire in the enclosure, this device comprises center hub and at least one arm, at least one arm described extends from center hub towards shell, and at least one arm wherein said holds described at least one wire, wherein device is formed by Part I and Part II.

17. devices according to claim 15 or 16, wherein Part I and Part II both provide a part at least one arm described.

18. devices according to claim 15 or 16, wherein Part I and Part II both provide a part for hub.

19. 1 kinds of hand-held instruments, comprise pipeline, this pipeline limits and enters the fluid flow path of pipeline to the fluid issuing of pipeline from fluid intake, and be used for distributing the device of at least one wire to pipeline, wherein this device comprises center hub and at least one arm, at least one arm described extends from center hub towards pipeline, and at least one arm wherein said holds described at least one wire.

20. utensils according to claim 19, at least one arm wherein said extends across fluid flow path.

21. utensils according to claim 20, at least one arm wherein said is symmetrical in cross-section.

22. utensils according to claim 19, wherein cable comprises two wires, and at least one arm described comprises two arms, each accommodation wire that is used for.

23. utensils according to claim 22, wherein said two arms are symmetrical.

24. utensils according to claim 22 or 23, wherein said two arm diameters are relatively spaced apart.

25. utensils according to claim 19, wherein center hub is roughly in the middle position of pipeline.

26. utensils according to claim 19, at least one arm wherein said extends from center hub towards the fluid issuing of pipeline.

27. utensils according to claim 26, at least one arm wherein said is shaped as the flowing interference in minimize fluid flow path.

28. utensils according to claim 27, at least one arm wherein said has the taper back side.

29. utensils according to claim 27, at least one arm wherein said has symmetrical airfoil cross-section.

30. utensils according to claim 19, wherein this device comprises at least one enhancing rib, and it is radial extension from center hub towards pipeline.

31. utensils according to claim 30, at least one enhancing rib axially extending at least partially along pipeline wherein said.

32. utensils according to claim 30 or 31, wherein said at least one strengthen rib and extend towards fluid intake from least one arm.

33. utensils according to claim 30, at least one enhancing rib wherein said bends towards the fluid intake of pipeline.

34. utensils according to claim 19, at least one arm wherein said encases and at least one wire described in electric isolution.

35. utensils according to claim 19, wherein said at least one wire by cable transfer to shell.

36. utensils according to claim 35, wherein cable can be connected to power supply in the remote end part away from shell.

37. utensils according to claim 35 or 36, wherein center hub holds this cable.

38. utensils according to claim 19, wherein device is formed by molding plastic material.

39. utensils according to claim 19, wherein device is formed by Part I and Part II.

40. according to utensil according to claim 39, and wherein Part I and Part II both provide a part at least one arm described.

41. utensils according to claim 39 or 40, wherein Part I and Part II both provide a part for hub.

42. utensils according to claim 19, wherein said pipeline comprises wire guide, and it extends along pipeline towards the fluid issuing of pipeline at least in part.

43. utensils according to claim 42, described at least one wire is kept apart from fluid flow path by wherein said wire guide.

44. utensils according to claim 42 or 43, at least one arm wherein said aligns with this wire guide, thinks that at least one wire provides from cable through described device and the path of advancing along described pipeline.

45. utensils according to claim 19, wherein, described utensil is hair care appliance.

46. utensils according to claim 19, wherein, described utensil is hair dryer.

47. 1 kinds of hair dryers, roughly as herein as described in reference accompanying drawing.