EP0306765A1 - Sèche-cheveux à main - Google Patents

Sèche-cheveux à main Download PDF

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Publication number
EP0306765A1
EP0306765A1 EP88113689A EP88113689A EP0306765A1 EP 0306765 A1 EP0306765 A1 EP 0306765A1 EP 88113689 A EP88113689 A EP 88113689A EP 88113689 A EP88113689 A EP 88113689A EP 0306765 A1 EP0306765 A1 EP 0306765A1
Authority
EP
European Patent Office
Prior art keywords
circuit board
hair dryer
motor circuit
motor
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88113689A
Other languages
German (de)
English (en)
Other versions
EP0306765B1 (fr
Inventor
Hans-Dieter Poweleit
Heinz-Jürgen Ohlsen
Heinrich Dr. Dr.-Ing. Komesker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Krups GmbH and Co KG
Original Assignee
Robert Krups GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27196457&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0306765(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19873729774 external-priority patent/DE3729774A1/de
Priority claimed from DE3802638A external-priority patent/DE3802638C2/de
Priority claimed from DE3807287A external-priority patent/DE3807287C2/de
Application filed by Robert Krups GmbH and Co KG filed Critical Robert Krups GmbH and Co KG
Publication of EP0306765A1 publication Critical patent/EP0306765A1/fr
Application granted granted Critical
Publication of EP0306765B1 publication Critical patent/EP0306765B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

Definitions

  • the invention relates to an electrically operated hand-held hair dryer with a housing that has an inlet at one end and an outlet at the other end to accommodate an electric motor that drives an impeller, a guide device with vanes for guiding and a heater for heating the air, and a motor printed circuit board with a triac and control devices.
  • Such electrically operated hand hair dryers are known in numerous embodiments.
  • a triac is a thyristor that passes and controls both half oscillations of an alternating current.
  • a first embodiment of the arrangement of such a motor circuit board it has been accommodated in the interior of a hollow cylinder which partially engages around the electric motor at one end and which carries the holder for the heating of the manual hair dryer on its outer surface.
  • This arrangement of the motor circuit board has not proven itself, in particular especially because there was no cooling air for the switching and control devices, in particular for the triac, in the almost closed cavity of the hollow cylinder.
  • the invention has for its object to further improve electrically operated hand-held hair dryers of the type described in the introduction, in particular in such a way that the triac is moved to such a location in the interior of the housing of the hand-held hair dryer in which optimum cooling takes place. This goal should be achieved with simple and cheap means.
  • one of the blades of the tracking device is removed and the triac is instead arranged in this area of the tracking device.
  • the twelfth was removed and instead the triac was arranged in the missing area of the follow-up device.
  • the tests carried out with such an arrangement have shown that optimal cooling of the triac is reached. This is not least because it lies completely in the air flow that is generated by the impeller driven by the electric motor. Since the triac practically takes the place of the missing shovel of the follow-up device, there are no changes in the dimensions of the follow-up device, so that the housing of the hand-held hair dryer can also retain its previous shape.
  • the guide device It is advisable to have the guide device have a recess in the area of the missing blade into which an extension of the motor plate having the triac protrudes.
  • the embodiment of the recess is chosen so that the triac is pressed into the correct position and also held in this.
  • the recess arranged in parallel and at a distance from one another, which are connected to one another by an upper boundary. It is furthermore expedient to have the upper limit have a cutout for engaging the free end of the extension of the motor printed circuit board. It is expedient to solder the triac to the motor circuit board in such a way that it complements the missing blade of the tracking device.
  • the one boundary wall of the cutout enclose such an angle with the horizontal that is approximately the same as the angle that a shovel of the guide device makes with the horizontal.
  • Such an angle is approximately 60 °.
  • the invention also relates to an electrically operated hand-held hair dryer in which the heating is accommodated by a carrier, the mating contacts of which can be connected to the contacts of the motor circuit board by plugging on.
  • a heater which has a carrier which is formed from two insulating plates which are arranged crosswise and which receive at least one heater designed as a heating coil which is held on the peripheral surface of the insulating plates in such a way that areas of the helical Engage the heater in recesses in the edges of the insulating plates. This means that the helical heater is only fixed at a few points. Otherwise, it bridges the free space between the areas of the insulating plates.
  • the invention proposes that the support holding the heater with the motor conductor plate is connectable by plugging in creating a releasable connection between its contacts and the mating contacts of the motor circuit board.
  • This design of the electrically operated hand hair dryer has considerable advantages over the known. So the heater with the carrier and the associated contacts can be prefabricated as a structural unit, which is then attached as a whole to the motor circuit board. With this plugging in, the contacts of the heater come into conductive connection with the mating contacts of the motor circuit board in the end position. The cumbersome and considerable costly soldering of the contacts and the counter contacts is eliminated.
  • the slots are arranged on the front end face of the motor printed circuit board, the angled free ends of the contact tabs engaging in the slots while making contact.
  • the slots can be created in the manufacture of the motor circuit board, so that additional operations are not required.
  • each contact tab made of a metal strip, each of which is connected in its central region to one of the insulating plates which form the carrier and arranged one above the other and one end of which is in conductive connection with the heating device, while the opposite other end is in the slots the motor circuit board engages. It is advisable not only to manufacture the contact tabs from a current-conducting, metallic material, but also to have them have resilient properties. These can be used in a simple manner to generate the desired contact pressure.
  • an electrically operated hand-held hair dryer In a proposed embodiment of an electrically operated hand-held hair dryer, this has a long-dimensioned, approximately rectangularly shaped motor printed circuit board seen in plan view, which has open-sided slots on its front free end, into which parts of the support of the heater can engage when plugged on.
  • the length of the motor circuit board corresponds approximately to that of the support of the heater.
  • the plug-on area between the motor circuit board and the Carrier of the heater is kept relatively short.
  • an improvement is also to be achieved, in particular an inexpensive assembly of the individual parts of the electrically operated hand-held hair dryer is to be achieved.
  • the motor circuit board as a body encompassing the motor, which has guide and support areas and, on its surface facing the outlet grille, contacts which can be detachably connected to the mating contacts of the heating device by being plugged on. It is preferably provided to design the motor circuit board as an annular body, the central recess of which is penetrated by the motor and the outer boundary wall of which can be used as a guide area, while a partial area serves as a support area.
  • the motor circuit board is therefore no longer formed as a rectangular body seen in plan view, which is arranged in an extension of the axis of the electric motor, but the motor circuit board now encompasses this electric motor, wherein guide and support areas are provided on the motor circuit board, which are in contact with adjacent areas of the housing of the handheld hair dryer work together. A detachable connection of this motor circuit board with the support of the heater is preferred.
  • the motor circuit board can still have all the essential electronic or electrical components. Assembly is made easier by prefabricated assemblies.
  • Another advantage is that the motor circuit board is in the immediate vicinity of the motor, so that there are very short connections to the connecting contacts of the motor.
  • a receptacle for the motor in the area of the middle part of a holder of a follow-up device, which is bounded in its upper part by a circumferential extension of the middle part, which can cooperate with the inner boundary wall of the motor circuit board.
  • a long-held guide is advantageous when attaching the mounting plate.
  • both the extension mentioned and the inner wall of the blade support part have a support shoulder for the support area of the motor circuit board.
  • These support shoulders can be easily produced in the manufacture of the housing of the hand hair dryer. Since the two support shoulders are arranged at a distance from one another, there is the advantage that the annular motor circuit board is supported both in the area of its inner diameter and in the area of the outer diameter.
  • a free space laterally offset from the support shoulders in the bottom of the holder of the follow-up device for accommodating protruding parts of the motor printed circuit board.
  • the dimensions of this free space are kept such that the usual electrical or electronic components arranged on the motor circuit board or also the connection points can be accommodated in it.
  • the motor circuit board has contacts which protrude vertically from its base plane and which can be plugged together with counter-contacts which are arranged on the support of the heating device.
  • the contacts of the motor circuit board are designed as flat plugs, the rear end of which is soldered to the motor circuit board, while the front end interacts with a mating contact of the heater designed as a clamping spring.
  • the mating contacts on the heating device are designed as flat plugs and the contacts on the motor printed circuit board as clamping springs.
  • the switch circuit board which interconnect connections or the like. can carry in any number and composition, has recesses which interact with retaining projections.
  • the latter are provided directly on the inside wall of the handle. These holding projections are thus also produced in the manufacture of the handle halves.
  • the hand hair dryer shown in the embodiment of FIGS. 1 to 5 is generally designated 10.
  • the manual hair dryer 10 has a housing which is composed of a front housing part 11 and a rear housing part 12.
  • the two housing parts 11 and 12 made of an insulating material, in particular plastic, can be connected to one another by means known per se and therefore not shown.
  • an inlet grille 13 is arranged for sucking in the fresh air.
  • This inlet grille 13 can be locked, for example, with the rear end of the housing part 12.
  • such an inlet grille 13 has a plurality of inlet openings which are expediently arranged in concentric partial rings.
  • the electrically operated hand-held hair dryer 10 has an outlet grill 15.
  • this is a one-piece plastic body which has an outer ring and a plurality of inner rings which are concentric with the center point. These have different diameters and are connected to one another via connecting webs.
  • At least one of the inner rings is arranged inclined to the longitudinal axis A-A of the hair dryer 10.
  • the inclination of the inner ring is approximately 25 °.
  • a recess In the vicinity of the outer ring of the outlet grille 15, a recess, not specified, is provided. In this way, space is created for engaging the rear end of a shaping nozzle 14 which, if required, can be detachably connected by the user to the front part 11 of the housing of the hand-held hair dryer 10.
  • a latching connection is expediently chosen as the releasable connection. In this way, detents and counter-detents can be generated directly in the manufacture of the housing or the molding nozzle.
  • the outlet grille 15 is inserted into the interior of the front part 11 of the housing.
  • the rear end of the outlet grille 15 comes into operative connection with the ends of the supports 17 of a heater, generally designated 16, facing it.
  • a heater generally designated 16, facing it.
  • the heater 16 which is arranged approximately in the middle of the housing of the hand-held hair dryer, has a design which is known per se. It consists of a plurality of flat supports 17 which extend essentially in the direction of the longitudinal axis A-A of the hand hair dryer 10. The actual heating wire or the heating coil carried by the carriers 17 is omitted in FIGS. 1 to 5 for the sake of simplicity.
  • the follow-up device 20 In front of the heater 16, seen in the direction of flow of the air, there is a follow-up device generally designated 20, the design of which can best be seen from FIGS. 1 and 2 of the drawing is. It follows from this that the after-guiding device is a body made in one piece from an insulating material, which is divided into several sub-areas.
  • the follow-up device 20 initially has a central, essentially flat middle part 33 with an opening in the center for the passage of the motor shaft 21 of an electric motor, generally designated 18.
  • fastening screws 32 are also provided, with which the follow-up device 20 is fixed. In the selected exemplary embodiment, a total of three fastening screws 32 are provided, which are each offset by 120 ° to one another.
  • a connecting part 34 adjoins the flat central part 33 of the follow-up device 20, which runs approximately in the direction of the longitudinal axis AA of the hand-held hair dryer 10 and which then merges into a further part, not specified in more detail, which is perpendicular to the longitudinal axis AA and to which part then turns
  • the blade support part 35 extends in the direction of the longitudinal axis AA.
  • the blade support part 35 has a total of eleven blades 36, one of which is shown in FIG. 3 of the drawing. It follows from this that each blade 36 of the follow-up device 20 is curved.
  • the connecting line through the ends of the blades 36 includes an angle ⁇ of approximately 60 ° with the horizontal.
  • the guide device 20 has twelve blades 36, but according to the invention the twelfth blade has been removed and in this missing area the triac 41 of the motor printed circuit board 43 is arranged, on which further switching and control devices of a known type are also accommodated.
  • the arrangement of the triac 41 takes place in the upper right area of FIG. 2 of the drawing.
  • a missing blade 36 has a recess generally designated 37.
  • This recess has parallel and spaced-apart boundaries 38 which are connected to one another by a further upper boundary 39.
  • the upper limit 39 has a cutout 40 for engaging the free end of an extension 42 of the motor circuit board 43 (cf. FIG. 5 of the drawing).
  • the right-hand boundary wall of the cutouts 40 in FIGS. 4 and 5 encloses an angle ⁇ with the horizontal which is approximately equal to the angle which one of the blades 36 forms with the horizontal. This means that the angle ⁇ is substantially equal to the angle ⁇ .
  • the size of each of these angles is 60 °.
  • the triac 41 is pressed and held in the correct position.
  • the triac 41 which may have a known bulge, is soldered to the motor circuit board 43 and forms the missing twelfth blade of the secondary guide 20. It is therefore in the air flow and is optimally cooled.
  • the carrier 17 of the heater 16 are arranged offset with respect to the blades of the Nachleit worn 20. I.e. the blades and the carriers 17 are not in direct succession.
  • the staggered arrangement of the two parts mentioned is chosen in order to achieve a swirling of the sucked-in air and thereby a reduction in the temperatures occurring in the area of the heater. The temperatures are reduced to such an extent that any disadvantageous impairment of the housing area surrounding the heater is eliminated.
  • the tracking device 20 forms at the same time a holder for the electric motor 18.
  • This electric motor 18 has a design known per se and is also used in a manner known per se for driving an impeller 22.
  • This is rotatably arranged on the motor shaft 21.
  • the impeller 22 has a hub 31 molded onto it, in the center of which there is a bore into which the motor shaft 21 engages. The air sucked through unspecified openings of the inlet grille 13 reaches the area of the impeller 22 when the electric hand-held hair dryer is used as intended, then in the area of action of the after-guide device 20 and thus also in the area of the triac 41, which is at that point of the Nachleit Rhein 20 is arranged on which one of the blades 36 was previously removed.
  • the sucked-in air finally reaches the heater 16 from the after-guide device 20. After the heating there, the air leaves the outlet grille 15 and possibly the front opening of a molding nozzle 14 if the latter has previously been detachably connected to the housing part 11 by the user.
  • the hand-held hair dryer 10 has a handle 23 which encloses an angle with the longitudinal axis AA which is smaller than a right one.
  • the handle is hollow. It can therefore be used to house operating parts of the hand-held hair dryer.
  • a switch 26 of a known type is accommodated in the interior of the hollow handle 23 and is covered on the outside by a cover panel 27.
  • the cover panel 27 can be displaced to a limited extent on the inner walls of the handle 23.
  • guides, not shown, are used, which can cooperate, for example, with a projection of the cover plate 27. By moving the cover panel, the switch can be moved into its display or exhibition.
  • a regulator wheel 28 is rotatably mounted in the cavity of the handle, which has an area its peripheral surface passes through an opening in the wall of the handle 23 to the outside and is thus accessible to the user.
  • this control wheel for example, the power of the electrically operated hand hair dryer 10 can be regulated.
  • an anti-kink grommet 25 with a continuous bore for accommodating one end of an electrical lead 24 is arranged in the area of the end face of the handle 23, an anti-kink grommet 25 with a continuous bore for accommodating one end of an electrical lead 24 is arranged.
  • the other end, not visible in FIG. 1, of the electrical supply line 24 carries a known plug which can be inserted into a socket by the user in order to supply the electric motor 11 with power after the switch has been turned into the switched-on position using its handle part 29 brought.
  • the end of the electrical lead introduced into the hollow interior of the handle 23 interacts in a known manner with a strain relief clamp 30, by means of which the connection points are to be relieved of tensile forces.
  • the motor printed circuit board of the hand-held hair dryer 10, generally designated 43, is a flat body made of electrically insulating material, which is arranged in the direction of the longitudinal axis AA of the hand-held hair dryer 10.
  • the rear end of the motor circuit board 43 faces one end face of the electric motor 18.
  • the known motor conductor connections are identified by 44 in FIG. 7 of the drawings.
  • the motor circuit board 43 carries in a generally known manner Wise switching and control devices.
  • the motor printed circuit board 43 has a central recess 45, which covers an essential part of the length of the motor printed circuit board and is open towards the front end face. Laterally next to this recess 45, slots 46 are arranged in the end face of the motor circuit board 43, which also remain open towards the free end face. Each of the two existing slots 46 is assigned a conductor track 47, which can be attached to the motor circuit board 43 in a known manner.
  • the motor circuit board 43 thus has mating contacts 47 which interact with the contacts of the heater 16.
  • the heater 16 includes a carrier 17 which is composed of two plate-shaped insulating bodies which are arranged crosswise. These insulating plates are designated 48 in the selected exemplary embodiment and inserted into one another. They each have in their area facing the motor circuit board 43 a recess 49 which is open towards the end face.
  • the two cross-arranged, plugged-together insulating plates 48 receive the heater 16 in a known manner.
  • the heater 16 is designed in the selected embodiment as a heating coil.
  • the outward-facing end face of the insulating plates 48 have, in a known manner, a multiplicity of grooves arranged next to one another, in each of which a portion of the filaments of the heater engage. Since the attachment of the filament of the heater is known in principle, only a partial area of the same is shown in FIG. 9.
  • contact tabs 50 and 51 are attached to the insulating plates 48 of the carrier 17. These Contact tabs are conductively connected to the coil of the heater in a known manner. A region of each contact tab 50 or 51 is attached to one of the insulating plates 48. This can be done, for example, by using a hollow rivet. But you can also have the contact tabs have connecting tongues, reach through the openings in the insulating plate and then flanged. The rear ends of the contact tabs, that is to say those which are to be conductively connected to the heater 16, are denoted by 52 and 53. In the selected exemplary embodiment, these are solder joints.
  • the front free ends of the contact tabs 50 and 51 are designated 54 and 55. They engage in the slots 46 of the motor circuit board 43 after the assembly of the individual parts. This results in a slight connection between the contact tabs 50 and 51 on the one hand and the mating contacts 47 on the other hand. On the other hand, this also creates a mechanical connection between the carrier 17 and the motor circuit board 43. In order to achieve sufficient contact, it is advisable to produce the contact tabs 50 and 51 from a metallic material with elastic properties. In this way, there is good contact between the free ends 54 and 55 of the two contact tabs and the associated mating contacts 47 of the motor circuit board 43.
  • FIG. 7 of the drawing shows that a structural unit is prefabricated which has the carrier 17, the heater 16 and the contact tabs 50 and 51, respectively.
  • the helical heater is omitted in the upper part of FIG. 7.
  • One of the The prepared unit is then pushed in the direction of arrow B onto the motor circuit board 43, which is already connected to the motor 18 via the connecting lines 44.
  • the front free ends 54 and 55 of the contact tabs 50 and 51 then reach the forward open slots 46 on the end face of the motor circuit board 43.
  • This not only creates an electrically conductive connection between the contacts and counter-contacts, but also a mechanical connection made between the motor circuit board 43 and the carrier 17.
  • Fig. 9 of the drawings In this position, the front free ends 54 and 55 of the contact tabs 50 and 51 are in the slots 46 of the motor circuit board 43.
  • 10 to 16 a third embodiment of the electrically operated hand hair dryer is shown. As far as its parts have remained unchanged with respect to the two previously mentioned exemplary embodiments, the same reference numerals have been retained. 10 to 16 in turn includes an electric motor 18. A housing 67 with a circular cross section is arranged in the rear housing part 12 to accommodate the same. The electric motor 18 with its rear region is inserted into this receptacle 67 in the manner shown in FIG. 11. The receptacle 67 for the motor 18 is delimited to the rear of the hand hair dryer 10 by the flat central part 33 and laterally by the connecting part 34. This connecting part 34 has a circumferential extension 88, cf. FIG. 14 of the drawing.
  • the wall thickness of the front part of the extension 88 is reduced in thickness, so that a circumferential support shoulder 89 is formed.
  • This support shoulder 89 interacts with areas of the motor printed circuit board 43 which, in this exemplary embodiment - see FIG. 13 of the drawing - has an annular design.
  • the motor circuit board in this case has a central recess 97 which is penetrated by the motor 18, but the extension 88 shown in FIG. 14 also engages in this recess.
  • the circuit board 43 does not come into direct contact with the peripheral surface of the motor 18 in the installation position according to FIG. 14 of the drawing. Rather, the outer boundary wall 100 of the motor circuit board 43 bears against the inside of the extension 88.
  • the support area 101 of the motor printed circuit board 43 lies on the support shoulder 89 in each case. There are two such support shoulders 89. The second is located in the region of the inner wall of the blade support part 35. In the end position shown in FIG.
  • the outer boundary wall 100 thus lies against the inner wall of the blade support part 35, while the inner boundary wall 102 interacts with the extension 88.
  • a free space 90 is created below the motor circuit board 43 in the bottom 36 of the after-guide device 20. This free space 90 is dimensioned such that the electronic or electrical components 92 of the motor printed circuit board 43 facing the floor 66 find space in it.
  • the motor circuit board 43 On the side facing the outlet of the handheld hair dryer 10, the motor circuit board 43 is initially provided with a number of electronic or electrical components 82, as can be seen in FIG. 13 of the drawings. There are also connections for connecting lines 98 and connections for the movable motor connections 96, which can be brought into conductive connection with the fixed motor connections 87, the latter on the front free forehead Surface of the electric motor 18 are provided.
  • each of the contacts 84 is designed as a flat plug. This flat plug 84 penetrates a hole in the motor circuit board 43 which is not described in more detail. Its rear end is connected to the motor circuit board 43 via a soldering point 91. The front free end of each tab 84 cooperates with a mating contact.
  • These counter contacts also have different designs, but are each assigned to the heater 16.
  • the counter contact designated 85 is designed as a clamping spring, i.e. seen in cross-section, it is bow-shaped, with inward bends of the clamping spring coming into conductive connection with the outer surface of the tab.
  • Each mating contact 85 is firmly connected to the heater 16 by a hollow rivet 86.
  • the hollow rivet 86 also holds a tap, not specified in more detail.
  • the counter contacts 85 are each arranged in front of the end face of the heater 16, so that they can be simply plugged into the contacts 84 of the motor circuit board 43. In the selected embodiment, a total of three tabs 84 are provided on the motor circuit board 43. If required, however, more flat plugs can easily be attached, to which a corresponding number of mating contacts 85 on the heater 16 must then be assigned. In the drawings, it is left open with which parts of the heater the counter contacts conduct together. This is because this can be done in a generally known manner. Because of the fact that we are known, there is no graphic representation of the resistance wires of the heater.
  • Fig. 16 of the drawing differs from Figs. 14 and 15 only in that the tabs and the clamping springs are interchanged.
  • the parts 93 and 94 are put together by transferring the heater 16 in the direction of the electric motor 18.
  • the tabs 94 come to lie in the area between the two legs of the clamping spring 93 , so that a good electrical connection is also ensured here.
  • FIG. 16 of the drawing differs from Figs. 14 and 15 only in that the tabs and the clamping springs are interchanged.
  • the clamping springs 93 are now assigned to the motor circuit board, while the flat plugs, which are now designated 94, lie on the heater 16.
  • the parts 93 and 94 are put together by transferring the heater 16 in the direction of the electric motor 18.
  • the tabs 94 come to lie in the area between the two legs of the clamping spring
  • the manual hair dryer 10 has - as already mentioned - a handle 23 which is held hollow and consists of two halves, one of which is assigned to the front housing part 11 and the other to the rear part 12 .
  • This cavity is used to house electrical switching and control devices.
  • a switch 26 of a known type is initially accommodated in the interior of the hollow handle 23.
  • the handle part 29 of this switch passes through a window 69, see FIG. 12 of the drawing.
  • a further, but smaller, window 68 is arranged in the boundary wall of the handle 23 above the window 69.
  • the portion of a regulator wheel 28 projects through this in the manner shown in FIG. 11. This regulator wheel 28 is rotatably mounted. With it, the power of the electrically operated hand-held hair dryer 10 can be regulated in a known manner.
  • the switch 26 is assigned a switch circuit board, generally designated 71, which - see FIG. 13 - is rectangular in plan view. Conductor tracks and connections 99 are arranged in a known manner on this switch circuit board 71.
  • the switch circuit board 71 For its attachment in the cavity of the handle 22, the switch circuit board 71 has a total of four recesses, of which the two upper ones shown in FIG. 13 are designed as rectangular openings, while the ones located in the region of the lower end face are designed in a slot-like manner.
  • the recesses are each designated 72. They interact with holding projections 70 which are directly molded onto the one inner wall of the handle 23.
  • the switch circuit board 71 is secured in its final position shown in FIG.
  • the inner wall of the handle 23 is provided with projections 103 which have internal bores and into which retaining screws 104 engage, cf. FIGS. 11 and 12 of the drawing.
  • FIG. 13 of the drawing also shows that the ring-shaped motor circuit board 43 is combined with the switch circuit board 71 to form one structural unit. This is done by using a plurality of connecting lines 98. These are dimensioned such that the ring-shaped motor circuit board can grip around the motor 18, as is shown in FIG. 11. In contrast, the switch circuit board 71 is plugged onto the holding projections 70.
  • the connecting lines 98 can be inserted into unspecified, forwardly open slots which are present in the region of the end face of the blade support part 35.
  • the annular motor circuit board rests on the support shoulders 89 without special fastening devices.
  • such an arrangement is sufficient because the position of the motor circuit board 43 is secured by joining the housing parts of the hand hair dryer 10.
  • additional connecting means can also be used. However, these should be solvable.
  • annular motor circuit board as shown in FIG. 13 is not absolutely necessary. It is important that in the embodiment according to FIGS. 10 to 16 of the drawing the motor circuit board is designed such that it can grip around the electric motor 18. If this engine 18 e.g. should have a cross-sectional area other than circular, the motor circuit board can be equipped with a correspondingly designed recess 97.
  • the contacts and mating contacts of the motor circuit board 43 and the heater can have a design that differs from the exemplary embodiments shown. The number of existing cooperating contacts and counter-contacts can also be varied.
  • both the design and the shape of the recess 37 and also the cutout 40 in the tracking device can be varied.
  • the blades 36 of the guide device 20 can enclose an angle to the horizontal that deviates from 60 °. In this case, the angle ⁇ according to FIG. 5 of the drawing would also have to be appropriately changed.
  • the triac in a different region of the tracking device 20 than that shown. It is essential that it is fully gripped by the cooling air flow and thus optimally cooled.
  • a triac is always mentioned in the foregoing as an electronic component
  • other electronic components such as a diode or the like, can also be used in the hairdryer in the manner according to the invention.
  • the aim is always to give the respective electronic component optimal cooling in the hand hair dryer.
  • Execution Fig. 8) 94 - mating contact (II. Execution Fig. 8) 95 - rear electronic parts and connections (of 43) 96 - movable motor connections 97 - middle recess (of 43) 98 - connecting lines 99 - Conductors and connectors (of 41) 100 - outer boundary wall (of 43) 101 - Support area (from 43) 102 - inner boundary wall (of 43) 103 - head start 104 - retaining screw AA longitudinal axis (out of 10) B Attachment direction (Fig. 7)

Landscapes

  • Cleaning And Drying Hair (AREA)
EP19880113689 1987-09-05 1988-08-23 Sèche-cheveux à main Expired - Lifetime EP0306765B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3729774 1987-09-05
DE19873729774 DE3729774A1 (de) 1987-09-05 1987-09-05 Elektrisch betriebener handhaartrockner
DE3802638A DE3802638C2 (de) 1988-01-29 1988-01-29 Elektrisch betriebener Handhaartrockner
DE3802638 1988-01-29
DE3807287 1988-03-05
DE3807287A DE3807287C2 (de) 1988-03-05 1988-03-05 Elektrisch betriebener Handhaartrockner

Publications (2)

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EP0306765A1 true EP0306765A1 (fr) 1989-03-15
EP0306765B1 EP0306765B1 (fr) 1992-04-22

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Publication number Priority date Publication date Assignee Title
EP0463315A2 (fr) * 1990-05-21 1992-01-02 Braun Aktiengesellschaft Sèche-cheveux
EP0827363A2 (fr) * 1996-08-28 1998-03-04 Braun Aktiengesellschaft Elément chauffant électrique à fil métallique
EP1643804A1 (fr) * 2004-09-29 2006-04-05 Leister Process Technologies Réchauffeur d'air
FR2876513A1 (fr) * 2004-10-08 2006-04-14 Arvinmeritor Light Vehicle Sys Boitier de collecteur comprenant une protection thermique
GB2515816A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A hand held appliance
GB2515815A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A hand held appliance
GB2515812A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A handheld appliance
WO2015001307A1 (fr) * 2013-07-05 2015-01-08 Dyson Technology Limited Appareil portatif
US9144286B2 (en) 2012-03-30 2015-09-29 Dyson Technology Limited Hand held appliance
US9173468B2 (en) 2012-03-30 2015-11-03 Dyson Technology Limited Hand held appliance
US9282799B2 (en) 2012-07-04 2016-03-15 Dyson Technology Limited Attachment for a hand held appliance
US9282800B2 (en) 2012-03-30 2016-03-15 Dyson Technology Limited Hand held appliance
US9414662B2 (en) 2013-07-05 2016-08-16 Dyson Technology Limited Hand held appliance
US9420865B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
US9526310B2 (en) 2012-07-04 2016-12-27 Dyson Technology Limited Attachment for a hand held appliance
US9675157B2 (en) 2012-03-30 2017-06-13 Dyson Technology Limited Hand held appliance
US9687058B2 (en) 2013-09-26 2017-06-27 Dyson Technology Limited Hand held appliance
US9808065B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
US9808067B2 (en) 2013-07-24 2017-11-07 Dyson Technology Limited Attachment for a handheld appliance
RU2639630C2 (ru) * 2013-07-05 2017-12-21 Дайсон Текнолоджи Лимитед Ручной бытовой прибор
WO2018042155A1 (fr) * 2016-08-30 2018-03-08 Dyson Technology Limited Appareil portatif
US10016040B2 (en) 2012-03-30 2018-07-10 Dyson Technology Limited Hand held appliance
US10117491B2 (en) 2012-03-30 2018-11-06 Dyson Technology Limited Hand held appliance
CN109043788A (zh) * 2018-10-31 2018-12-21 舒可士（深圳）科技有限公司 毛发干燥装置
CN109156965A (zh) * 2018-10-31 2019-01-08 舒可士（深圳）科技有限公司 毛发干燥装置
US10194728B2 (en) 2015-01-21 2019-02-05 Dyson Technology Limited Attachment for a hand held appliance
US10213001B2 (en) 2015-01-21 2019-02-26 Dyson Technology Limited Attachment for a hand held appliance
US10278471B2 (en) 2013-09-27 2019-05-07 Dyson Technology Limited Hand held appliance
FR3091153A1 (fr) 2018-12-28 2020-07-03 Seb S.A. appareil de coiffure avec encapsulage d’un composant électrique ou électronique
CN114027606A (zh) * 2021-12-16 2022-02-11 苏州小枣树网络科技有限公司 一种手持吹风机

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GB2547138B (en) 2013-07-05 2018-03-07 Dyson Technology Ltd An attachment for a handheld appliance
AU355723S (en) 2013-09-26 2014-05-23 Dyson Technology Ltd A hair dryer
AU355722S (en) 2013-09-26 2014-05-23 Dyson Technology Ltd A hair dryer
AU355721S (en) 2013-09-26 2014-05-23 Dyson Technology Ltd A hair dryer
AU363171S (en) 2015-01-12 2015-08-06 Dyson Technology Ltd A hair appliance
JP2023004047A (ja) * 2021-06-25 2023-01-17 株式会社やまびこ 軸流ブロワ

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WO1980000783A1 (fr) 1978-10-20 1980-05-01 Firth Cleveland Ltd Seche-cheveux
EP0010795A1 (fr) * 1978-10-27 1980-05-14 Braun Aktiengesellschaft Dispositif pour la fixation et le centrage d'une unité moteur-ventilateur d'une soufflerie
GB2174900A (en) * 1985-04-30 1986-11-19 Bristol Myers Co Hair dryer heater

Patent Citations (3)

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WO1980000783A1 (fr) 1978-10-20 1980-05-01 Firth Cleveland Ltd Seche-cheveux
EP0010795A1 (fr) * 1978-10-27 1980-05-14 Braun Aktiengesellschaft Dispositif pour la fixation et le centrage d'une unité moteur-ventilateur d'une soufflerie
GB2174900A (en) * 1985-04-30 1986-11-19 Bristol Myers Co Hair dryer heater

Cited By (52)

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Publication number Priority date Publication date Assignee Title
EP0463315A2 (fr) * 1990-05-21 1992-01-02 Braun Aktiengesellschaft Sèche-cheveux
EP0463315A3 (en) * 1990-05-21 1992-01-15 Braun Aktiengesellschaft Hair dryer
EP0827363A2 (fr) * 1996-08-28 1998-03-04 Braun Aktiengesellschaft Elément chauffant électrique à fil métallique
EP0827363A3 (fr) * 1996-08-28 1998-10-21 Braun Aktiengesellschaft Elément chauffant électrique à fil métallique
CN100452537C (zh) * 2004-09-29 2009-01-14 莱斯特加工技术公司 空气加热器
US7123822B2 (en) 2004-09-29 2006-10-17 Leister Process Technologies Air heater
EP1643804A1 (fr) * 2004-09-29 2006-04-05 Leister Process Technologies Réchauffeur d'air
FR2876513A1 (fr) * 2004-10-08 2006-04-14 Arvinmeritor Light Vehicle Sys Boitier de collecteur comprenant une protection thermique
US7362020B2 (en) 2004-10-08 2008-04-22 Arvinmeritor Light Vehicle Systems - France Commutator housing with an overcurrent protection device
US9173468B2 (en) 2012-03-30 2015-11-03 Dyson Technology Limited Hand held appliance
US10687595B2 (en) 2012-03-30 2020-06-23 Dyson Technology Limited Hand held appliance
US10610000B2 (en) 2012-03-30 2020-04-07 Dyson Technology Limited Hand held appliance
US10117491B2 (en) 2012-03-30 2018-11-06 Dyson Technology Limited Hand held appliance
US10016040B2 (en) 2012-03-30 2018-07-10 Dyson Technology Limited Hand held appliance
US9675157B2 (en) 2012-03-30 2017-06-13 Dyson Technology Limited Hand held appliance
US9282800B2 (en) 2012-03-30 2016-03-15 Dyson Technology Limited Hand held appliance
US9144286B2 (en) 2012-03-30 2015-09-29 Dyson Technology Limited Hand held appliance
US9526310B2 (en) 2012-07-04 2016-12-27 Dyson Technology Limited Attachment for a hand held appliance
US9282799B2 (en) 2012-07-04 2016-03-15 Dyson Technology Limited Attachment for a hand held appliance
US10575617B2 (en) 2012-07-04 2020-03-03 Dyson Technology Limited Attachment for a hand held appliance
US10010150B2 (en) 2012-07-04 2018-07-03 Dyson Technology Limited Attachment for a hand held appliance
US9808065B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
RU2635063C2 (ru) * 2013-07-05 2017-11-08 Дайсон Текнолоджи Лимитед Ручной бытовой прибор
US9414662B2 (en) 2013-07-05 2016-08-16 Dyson Technology Limited Hand held appliance
US9420865B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
CN104273917A (zh) * 2013-07-05 2015-01-14 戴森技术有限公司 手持式器具
WO2015001307A1 (fr) * 2013-07-05 2015-01-08 Dyson Technology Limited Appareil portatif
US9681726B2 (en) 2013-07-05 2017-06-20 Dyson Technology Limited Hand held appliance
GB2515816B (en) * 2013-07-05 2015-12-23 Dyson Technology Ltd A hand held appliance
US9808066B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
GB2515812A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A handheld appliance
CN104273917B (zh) * 2013-07-05 2018-10-09 戴森技术有限公司 手持式器具
JP2015013126A (ja) * 2013-07-05 2015-01-22 ダイソン テクノロジー リミテッド 手持ち式電気器具
RU2639630C2 (ru) * 2013-07-05 2017-12-21 Дайсон Текнолоджи Лимитед Ручной бытовой прибор
GB2515815B (en) * 2013-07-05 2015-12-02 Dyson Technology Ltd A hand held appliance
GB2515816A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A hand held appliance
GB2515815A (en) * 2013-07-05 2015-01-07 Dyson Technology Ltd A hand held appliance
GB2515812B (en) * 2013-07-05 2016-02-03 Dyson Technology Ltd A handheld appliance
WO2015001310A1 (fr) * 2013-07-05 2015-01-08 Dyson Technology Limited Appareil portatif
US9808067B2 (en) 2013-07-24 2017-11-07 Dyson Technology Limited Attachment for a handheld appliance
US9687058B2 (en) 2013-09-26 2017-06-27 Dyson Technology Limited Hand held appliance
US10278471B2 (en) 2013-09-27 2019-05-07 Dyson Technology Limited Hand held appliance
US10213001B2 (en) 2015-01-21 2019-02-26 Dyson Technology Limited Attachment for a hand held appliance
US10194728B2 (en) 2015-01-21 2019-02-05 Dyson Technology Limited Attachment for a hand held appliance
WO2018042155A1 (fr) * 2016-08-30 2018-03-08 Dyson Technology Limited Appareil portatif
GB2553508A (en) * 2016-08-30 2018-03-14 Dyson Technology Ltd A handheld appliance
CN107772738A (zh) * 2016-08-30 2018-03-09 戴森技术有限公司 手持器具
CN109156965A (zh) * 2018-10-31 2019-01-08 舒可士（深圳）科技有限公司 毛发干燥装置
CN109043788A (zh) * 2018-10-31 2018-12-21 舒可士（深圳）科技有限公司 毛发干燥装置
FR3091153A1 (fr) 2018-12-28 2020-07-03 Seb S.A. appareil de coiffure avec encapsulage d’un composant électrique ou électronique
CN114027606A (zh) * 2021-12-16 2022-02-11 苏州小枣树网络科技有限公司 一种手持吹风机
CN114027606B (zh) * 2021-12-16 2024-02-06 苏州小枣树网络科技有限公司 一种手持吹风机

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