CN116194012A - Blower equipped with motor - Google Patents
Blower equipped with motor Download PDFInfo
- Publication number
- CN116194012A CN116194012A CN202180061282.4A CN202180061282A CN116194012A CN 116194012 A CN116194012 A CN 116194012A CN 202180061282 A CN202180061282 A CN 202180061282A CN 116194012 A CN116194012 A CN 116194012A
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- China
- Prior art keywords
- motor
- visual
- hair dryer
- upper element
- vibrations
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- Pending
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- 230000000007 visual effect Effects 0.000 claims abstract description 68
- 230000007423 decrease Effects 0.000 claims abstract description 14
- 238000005485 electric heating Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/20—Additional enhancing means
- A45D2200/207—Vibration, e.g. ultrasound
Landscapes
- Cleaning And Drying Hair (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
A hair dryer (1) is described, the hair dryer (1) comprising: a body provided with at least one upper element and a grip portion adapted to be gripped by a user and operatively connected to the at least one upper element (2); the upper element (2) extends along an axis (X-X) and the upper element (2) has an air inlet (4) at its end and a front air outlet (5) at the opposite end; the upper element (2) comprises, in its interior: -an electric motor (6), the electric motor (6) being configured to be set at different speeds including a maximum speed setting; -a fan operated by said motor (6) to generate an air flow through the upper element (2) and out from the front opening (5); -an electric heating device for heating an air flow generated by a fan, said electric heating device being arranged at a predetermined distance from said motor (6) and said fan; -an electronic control board (7), the electronic control board (7) being configured to drive the motor (6); characterized by comprising the following steps: -at least one transmitter (8) of visual and/or acoustic signals and/or vibrations, the at least one transmitter (8) of visual and/or acoustic signals and/or vibrations being connected to the electronic control board (7); the electronic control board (7) comprises at least one microprocessor configured to detect the power emitted by the motor (6) and to control the transmitter (8) of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever a decrease in electrical power with respect to a nominal electrical power corresponding to a speed setting is detected.
Description
Technical Field
The present invention relates to a hair dryer, and more particularly to a hair dryer provided with an electric motor, which is preferably brushless.
Background
Hair dryers are devices for drying hair in beauty parlors or hairdressers and for home use (see document DE 2742615).
Generally, known hair dryers comprise a "gun-shaped" body, which is composed of an upper element and a grip portion adapted for being gripped by a user.
A substantially cylindrical or frustoconical upper element extends along an axis and has an air inlet at two ends and a front air outlet at the opposite end.
A motor and a fan (the fan being operated by the aforementioned motor and being able to generate an air flow through the upper element and out of the front opening) are usually present inside the upper element.
One or more resistors for heating the air flow generated by the fan are arranged inside the upper element at a predetermined distance with respect to the motor and the fan.
A small control unit (such as a printed electronic circuit or the like) allowing to control the motor and thus the fan and the resistor is usually provided inside the grip portion.
The motor and the resistor as an electronic printed circuit are supplied with current and for this purpose a power cord connected to the grip portion connects the element to the grid.
Recently, the use of brushless type motors in hair dryers is expanding due to commercial demands associated with the need for energy efficient products.
A first great advantage with respect to the application of such motors relates to the life expectancy of the motor itself with respect to conventional motors. Furthermore, the absence of brushes in brushless motors also eliminates a major source of electromagnetic noise present in other motors.
The bulkiness of this type of motor is limited in terms of the power that they can supply, but especially with respect to the torque that such motors can deliver. In terms of efficiency, brushless motors are always operated under optimal performance conditions and have a higher efficiency because they do not have to generate a rotor magnetic field.
In addition, brushless motors have low noise.
The brushless motor is driven by an electronic control unit such as an electronic control board.
The applicant has observed that, especially in the professional field, blowers subjected to intense and/or improper use may cause blockage and/or closure of the air intake path or the air outlet path. Such closure may also be only partial.
Indeed, the applicant has observed that in the case of intense use of the hair dryer, a given quantity of hair can be inadvertently sucked inside the dryer, thus settling around the rotation axis of the fan, thus overloading the motor over time.
Always in the case of an improperly used blower, the hairdresser may block the air intake path involuntarily by improperly grasping the blower or the air outlet path by bringing the blower too close to the customer's head.
To date, there are no remedial measures to prevent such improper use of the blower, which could compromise the performance of the appliance over time or even cause it to fail.
Accordingly, the applicant has found that there is a need to provide a new hair dryer having a motor, preferably brushless, which allows to quickly alert the user to its abnormal use.
In particular, the applicant has solved the problem of alerting the user to the blockage and/or closure of the air inlet path or air outlet path of the hair dryer, or to the blockage and/or closure of only a part, or to the degradation of its performance (for example due to the hair unintentionally sucked into the interior of the hair dryer being entangled around the axis of rotation of the fan).
Disclosure of Invention
Thus, in a first embodiment thereof, the present invention relates to a hair dryer comprising a body provided with at least one upper element and a grip portion adapted to be gripped by a user and operatively connected to said at least one upper element; the upper element extending along an axis and having an air inlet at an end thereof and a front air outlet at an opposite end; the upper element comprises, in its interior:
-an electric motor configured to be set at different speeds including a maximum speed setting;
-a fan operated by said motor to generate an air flow through the upper element and out from the front opening;
-an electric heating device for heating the air flow generated by the fan, said electric heating device being arranged at a predetermined distance from said electric motor and fan;
-an electronic control board configured to drive the motor;
characterized in that the blower comprises
-at least one visual and/or acoustic signal and/or vibration emitter connected to said electronic control board;
-the electronic control board comprises at least one microprocessor configured to detect the power emitted by the motor and to control the transmitter of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever a decrease in electric power with respect to a nominal electric power corresponding to a speed setting is detected.
In this way, the user is immediately alerted to improper use of the hair dryer and/or to performance degradation due to other phenomena (such as hair being entangled on the motor shaft, etc.), allowing the user to act quickly by correcting his behavior or requesting maintenance of the hair dryer.
Preferably, the microprocessor is configured to detect power emitted by said motor and the microprocessor is configured to control the transmitter of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever a decrease in electrical power relative to the rated electrical power at maximum speed is detected.
For the purposes of the present invention, maximum speed is intended to be the maximum speed of the motor that the blower can be set to. In practice, the blower may be set by the user, typically at one, two, three or more different speeds. For example, if the blower can be set to three different speeds, the maximum speed of the motor corresponds to the highest speed between the three speeds that the motor can set in use. Whenever the blower has a single operating speed, the maximum speed will correspond to the single operating speed.
In the above aspect, the present invention may have at least one of the preferred features described below.
Advantageously, the aforementioned at least one microprocessor is configured to detect the electric power emitted by the motor, and the aforementioned at least one microprocessor is configured to control the emitter of visual and/or acoustic signals and/or vibrations to emit visual and/or acoustic signals and/or vibrations whenever a decrease in electric power equal to at least 30% of the rated electric power corresponding to the speed setting is detected.
Preferably, the microprocessor is configured to detect the electric power emitted by the motor, and the microprocessor is configured to control the emitter of visual and/or acoustic signals and/or vibrations to emit visual and/or acoustic signals and/or vibrations whenever a decrease in electric power equal to at least 30% of the rated electric power at maximum speed is detected.
Preferably, the microprocessor is configured to control the transmitter of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever the electrical circuit detects an electrical power of less than or equal to 90 watts.
Advantageously, the microprocessor is configured to control the transmitter of said visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever the electric circuit detects an electric power of less than or equal to 80 watts.
Conveniently, if the motor is set at a different speed relative to the maximum speed, the microprocessor is configured to control the transmitter of the visual and/or acoustic signal and/or vibration to transmit at least one visual and/or acoustic signal and/or vibration whenever the microcontroller detects less than 50 watts of electrical power.
Preferably, if the motor is set at a different speed with respect to the maximum speed, the microprocessor is configured to control the transmitter of the visual and/or acoustic signal and/or vibration to transmit at least one visual and/or acoustic signal and/or vibration each time the microcontroller detects an electric power of less than or equal to 45 watts.
Conveniently, the microprocessor is configured to detect the electric power of the motor at preset time intervals.
Conveniently, the predetermined time interval is greater than or equal to 10 seconds.
Conveniently, the predetermined time interval is greater than or equal to 15 seconds.
Advantageously, the emitters of visual and/or acoustic signals and/or vibrations comprise at least one LED.
Preferably, the at least one LED is positioned on the upper element, such as visible to a user.
Advantageously, the motor is a brushless motor.
Preferably, the motor is a single-phase brushless motor.
Alternatively, the motor is a three-phase brushless motor.
Further features and advantages of the invention will become more apparent in the detailed description of some preferred, but not exclusive, embodiments of a hair dryer according to the invention.
Drawings
Such description will be illustrated below, and therefore not limiting, with reference to the attached drawings, provided by way of example only, in which:
figure 1 is a schematic side view of a blower according to the invention;
figure 2 is a schematic view of a motor assembly according to the invention, with an electronic control board and a device for giving visual signals to the hair dryer; and
figure 3 is a graph of the power loss of the motor of a blower according to the invention as a function of the percentage of back-gate blockage.
Detailed Description
Referring to fig. 1-3, a hair dryer in accordance with the present invention is indicated by reference numeral 1.
The hair dryer 1 shown in fig. 1 has a body provided with at least one upper element 2 and a grip portion 3 adapted to be gripped by a user.
The upper element 2 extends along an axis X-X and has an opening 4 for an air inlet at the end of the upper element 2 and a front opening 5 for an air outlet at the opposite end.
The upper element 2 comprises in its interior: a motor 6; a fan (not shown in the figures) operated by the motor 6 to generate an air flow through the upper element 2 and out from the front opening 5.
An electrical heating device, such as a resistor or the like comprising at least two windings for heating the air flow generated by the fan, is further present in a known manner. The resistor is arranged at a predetermined distance from the motor 6 and the fan.
In particular, the motor 6 is of the brushless type and an electronic control board is present in the upper element 2, which allows to drive the motor 6 and thus the fan.
Preferably, the motor 6 is a single-phase or three-phase brushless BLDC motor.
The electronic control board 7 comprises a series of electronic components such as a microcontroller or the like that controls the transistors and the current switching.
The microcontroller is further configured to detect the power delivered by the motor 6.
The hair dryer 1 further has a transmitter of visual and/or acoustic signals and/or vibrations controlled by the microprocessor of the electronic control board 7.
The microcontroller is configured for controlling the transmitter 8 of visual and/or acoustic signals and/or vibrations such that the transmitter 8 of visual and/or acoustic signals and/or vibrations is transmitting visual and/or acoustic signals and/or vibrations perceivable by the user whenever a reduction of the electrical power relative to the nominal operating power is detected.
Specifically, the motor is configured to set different operating speeds, such as a minimum speed, a maximum speed, and one or more intermediate speeds, by a user.
A given rated operating power corresponds to each speed.
Thus, the electronic control board 7 is configured to control the signal transmitter 8 such that the signal transmitter 8 transmits a signal that can be perceived by the user whenever a decrease in electric power relative to the rated operation power corresponding to the set operation speed is detected.
Preferably, the electronic control board 7 is configured to control the emitters 8 of visual and/or acoustic signals and/or vibrations such that each time an electrical power reduction is detected at maximum speed with respect to the nominal operating power, the emitters 8 of visual and/or acoustic signals and/or vibrations emit visual and/or acoustic signals and/or vibrations that can be perceived by the user.
In other words, according to some embodiments, the electronic control board 7 is configured for controlling the signal emitter 8 such that the signal emitter 8 emits a signal that can be perceived by the user only when a decrease in electrical power is detected with respect to the nominal operating power corresponding to the maximum operating speed.
Typically, the microcontroller is configured for controlling the visual and/or acoustic signal or vibration transmitter 8 such that the visual and/or acoustic signal or vibration transmitter 8 transmits a visual and/or acoustic signal and/or vibration that can be perceived by a user whenever a reduction of the electrical power by at least 30% of the rated electrical power is detected.
Preferably, the microcontroller is configured for controlling the visual and/or acoustic signal and/or vibration transmitter 8 such that the visual and/or acoustic signal and/or vibration transmitter 8 transmits a visual and/or acoustic signal and/or vibration that can be perceived by the user whenever a reduction of the electrical power by at least 30% of the rated electrical power at maximum speed is detected.
In particular, in the case of a motor of the three-phase or single-phase brushless type, the rated power of the motor is about 120W at maximum speed, the microcontroller being configured to control the emitter 8 of visual and/or acoustic signals and/or vibrations so that each time it detects an electric power of less than or equal to 90W (watts), preferably 80W, the emitter 8 of visual and/or acoustic signals and/or vibrations emits visual and/or acoustic signals and/or vibrations that can be perceived by the user.
In other words, whenever the microcontroller detects that the electric power of the motor has fallen below 90W, preferably below 80W or lower, the microcontroller controls the transmitter 8 to transmit visual and/or acoustic signals and/or vibrations, so that the transmitter 8 transmits the aforementioned signals and/or vibrations.
The detection occurs according to regular or preset time intervals. Preferably, the time intervals within which the microcontroller detects the power of the motor 6 are all identical intervals. Preferably, the microcontroller detects the electric power of the motor at intervals greater than 10 seconds or equal to 10 seconds.
Even more preferably, the time intervals within which the microcontroller detects the power of the motor 6 are all identical intervals. Preferably, the microcontroller detects the electric power of the motor at intervals greater than or equal to 15 seconds.
In other words, the microcontroller detects the electric power of the motor every 15 seconds, and controls the emission of visual and/or acoustic signals and/or vibrations whenever the electric power of the motor is less than a preset threshold (for example 80W).
Whenever the microcontroller detects an electric power below the threshold electric power at successive time intervals, the microcontroller will control the transmitter 8 to transmit visual and/or acoustic signals and/or vibrations and to transmit signals and/or vibrations continuously.
Vice versa, whenever the microcontroller detects that the electric power of the motor has exceeded the threshold electric power (for example: 80W) in successive time intervals, the microcontroller will control the transmitter 8 to stop (not transmit) the visual and/or acoustic signal and/or vibration.
The above power value refers to a threshold value of the motor operating at the maximum speed.
In an embodiment wherein the microcontroller is configured to control the signal emitter 8 such that the signal emitter 8 emits a signal perceptible to a user whenever a decrease in electrical power is detected relative to a nominal operating power corresponding to the set operating speed, the threshold power can be set at a different speed.
In case, for example, the motor may be set to two different operating speeds (minimum speed and maximum speed, respectively) and the motor is set by the user at a minimum value corresponding to a nominal operating power of about 50W, the microcontroller will control the emission of visual and/or acoustic signals and/or vibrations whenever it should detect that the electric power of the motor should drop below a preset threshold value (e.g. 45W).
In the embodiment shown in the figures there is a transmitter 8 of a visual signal, which transmitter 8 of a visual signal is placed on the upper element 2, such as in a position that can be seen by the user.
Preferably, the emitter 8 of visual signals is directly connected to the electronic control board 7 by means of its electrodes.
The emitters 8 of the visual signals are placed such as partially out of the housing of the upper element 2.
Preferably, the emitter 8 of visual signals is placed such as partially out of the inner part of the housing of the upper element 2.
The inner portion of the housing of the upper element 2 is intended to be the portion of the hair dryer that is oriented substantially towards and facing the face of the user in use and gripped by the user.
In fig. 3, a graph of the power loss of the motor of a blower according to the invention as a function of the percentage of blockage of the rear grille or its front outlet path is shown.
The percentage of blockage/closure of the air intake path of the blower is plotted on the abscissa, corresponding to a blower equipped or not with a front delivery port (fronttdelivorymouth).
The electrical power detected by the microcontroller is instead illustrated in the ordinate.
The straight line denoted by reference a represents the nominal power, which is typically detected by the microcontroller at maximum speed during normal operation, in the specific case 120W.
The straight line denoted by reference numeral B represents a power setting limit at which the microcontroller controls signal emission.
The dashed line denoted by reference character C indicates how the power of the motor at maximum speed decreases as the blocked/closed portion (reference character 4 in fig. 1) of the air intake path of the blower, which is equipped with the front delivery port, increases.
The dashed line denoted by reference numeral D indicates how the power of the motor at maximum speed decreases as the blocked/closed portion (reference numeral 4 in fig. 1) of the air intake path of the blower, which is not equipped with the front delivery port, increases.
Graphs C and D show that at maximum speed there is a power loss greater than 30% of the rated electrical power and the illumination limit of the luminous signal is exceeded when the blockage/closure of the air intake path of the blower is equal to at least 80% of the length.
Various modifications may be made to the embodiments described in detail, which in any case remain within the scope of the present invention as defined by the appended claims.
Claims (15)
1. A hair dryer (1), said hair dryer (1) comprising a body provided with at least one upper element and a grip portion adapted to be gripped by a user and operatively connected to said at least one upper element (2); the upper element (2) extends along an axis (X-X) and the upper element (2) has an air inlet (4) at an end of the upper element (2) and a front air outlet (5) at an opposite end; the upper element (2) comprises, inside the upper element (2):
-a motor (6), the motor (6) being configured to be set at different speeds including a maximum speed setting;
-a fan operated by the motor (6) to generate an air flow through the upper element (2) and out of the front opening (5);
an electric heating device for heating an air flow generated by the fan; the electric heating means are arranged at a predetermined distance from the motor (6) and the fan;
-an electronic control board (7), said electronic control board (7) being configured to drive said motor (6);
characterized in that the hair dryer (1) comprises
-at least one visual and/or acoustic signal and/or vibration emitter (8), said at least one visual and/or acoustic signal and/or vibration emitter (8) being connected to said electronic control board (7);
the electronic control board (7) comprises at least one microprocessor configured to detect the power emitted by the motor (6) and to control the transmitter (8) of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever a decrease in electric power with respect to a nominal electric power corresponding to a speed setting is detected.
2. The hair dryer (1) according to claim 1, characterized in that the at least one microprocessor is configured to detect the power emitted by the motor (6) and to control the transmitter (8) of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations each time a decrease in electric power with respect to a rated electric power at maximum speed is detected.
3. The hair dryer (1) according to claim 1 or 2, characterized in that at least one microprocessor is configured to detect the power emitted by the motor (6), and that at least one microprocessor is configured to control the transmitter (8) of visual and/or acoustic signals and/or vibrations to transmit visual and/or acoustic signals and/or vibrations whenever a decrease in electric power equal to at least 30% of the rated electric power corresponding to a speed setting is detected.
4. A hair dryer (1) according to claim 3, characterized in that said at least one microprocessor is configured to detect the power emitted by said motor (6) and to control said visual and/or acoustic signal and/or vibration emitter (8) to emit a visual and/or acoustic signal and/or vibration if a decrease in electric power equal to at least 30% of the rated electric power at maximum speed is detected.
5. The hair dryer (1) according to any one of the preceding claims, wherein said microprocessor is configured to control said visual and/or acoustic signal and/or vibration emitter (8) to emit at least one visual and/or acoustic signal and/or vibration whenever said microcontroller detects an electric power of less than or equal to 90 watts.
6. The hair dryer (1) according to claim 5, characterized in that said microprocessor is configured to control said visual and/or acoustic signal and/or vibration transmitter (8) to transmit at least one visual and/or acoustic signal and/or vibration if said microcontroller detects an electric power of less than or equal to 80 watts.
7. A hair dryer (1) according to any of the preceding claims 1 to 6, characterized in that if the motor (6) is set at a different speed set with respect to the maximum speed, the microprocessor is configured to control the transmitter (8) of the visual and/or acoustic signals and/or vibrations to transmit at least one visual and/or acoustic signal and/or vibration each time the microcontroller detects an electric power of less than 50 watts.
8. The hair dryer (1) according to claim 7, characterized in that if the motor (6) is set at a different speed than the maximum speed setting, the microprocessor is configured to control the transmitter (8) of visual and/or acoustic signals and/or vibrations to transmit at least one visual and/or acoustic signal and/or vibration each time the microcontroller detects an electric power of less than or equal to 45 watts.
9. The hair dryer (1) according to any one of claims 1 to 8, wherein said microprocessor is configured to detect the electric power of said motor at preset time intervals.
10. A hair dryer (1) according to claim 9, wherein said preset time interval is greater than or equal to 10 seconds.
11. A hair dryer (1) according to any of the preceding claims 1 to 10, characterized in that said visual and/or acoustic signal and/or vibration emitter (8) comprises at least one LED.
12. The hair dryer (1) according to claim 11, characterized in that said at least one LED is positioned on said upper element (2), such as visible to a user.
13. A hair dryer (1) according to any of the preceding claims 1 to 12, characterized in that said motor (6) is a brushless motor.
14. A hair dryer (1) according to claim 13, characterized in that said motor (6) is a single-phase brushless motor.
15. A hair dryer (1) according to claim 13, characterized in that said motor (6) is a three-phase brushless motor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102020000018784 | 2020-07-31 | ||
| IT102020000018784A IT202000018784A1 (en) | 2020-07-31 | 2020-07-31 | HAIR DRYER EQUIPPED WITH AN ELECTRIC MOTOR |
| PCT/IB2021/056732 WO2022023933A1 (en) | 2020-07-31 | 2021-07-26 | Hair dryer equipped with an electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116194012A true CN116194012A (en) | 2023-05-30 |
Family
ID=72885929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180061282.4A Pending CN116194012A (en) | 2020-07-31 | 2021-07-26 | Blower equipped with motor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230301415A1 (en) |
| EP (1) | EP4188153A1 (en) |
| CN (1) | CN116194012A (en) |
| IT (1) | IT202000018784A1 (en) |
| WO (1) | WO2022023933A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1797787A2 (en) * | 2005-12-13 | 2007-06-20 | Elchim S.P.A. | Hairdryer including a safety device |
| FR2895883A1 (en) * | 2006-01-10 | 2007-07-13 | Duna Entpr Sa | Programmable manual hair dryer has microprocessor to determine constant functional conditions corresponding to electrical and mechanical discrepancies involved in signaling information on display, when dryer is turned ON |
| EP1834540A1 (en) * | 2006-03-17 | 2007-09-19 | Giovanni Gandolfo | Electronically controlled system, with low energetic impact, for the contemporaneous drying and modelling of the hair, and related scheme for the construction, and ways of use |
| US20180125195A1 (en) * | 2014-12-16 | 2018-05-10 | Claudio Soresina | Hair dryer provided with an electric motor |
| DE202019102413U1 (en) * | 2019-04-29 | 2019-05-07 | Ebm-Papst Landshut Gmbh | Device for monitoring the operation of a fan |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2742615A1 (en) | 1977-09-22 | 1979-04-05 | Licentia Gmbh | Electric hand held hair dryer - incorporates heater fan motor, switch and feeder cable inside spiral duct |
| EP3373765B1 (en) * | 2015-11-09 | 2020-05-06 | Arçelik Anonim Sirketi | A hairdryer and a method of functioning of a hairdryer |
| JP2017196020A (en) * | 2016-04-26 | 2017-11-02 | パナソニックＩｐマネジメント株式会社 | Hair Dryer |
-
2020
- 2020-07-31 IT IT102020000018784A patent/IT202000018784A1/en unknown
-
2021
- 2021-07-26 CN CN202180061282.4A patent/CN116194012A/en active Pending
- 2021-07-26 US US18/017,407 patent/US20230301415A1/en active Pending
- 2021-07-26 WO PCT/IB2021/056732 patent/WO2022023933A1/en active Application Filing
- 2021-07-26 EP EP21755564.8A patent/EP4188153A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1797787A2 (en) * | 2005-12-13 | 2007-06-20 | Elchim S.P.A. | Hairdryer including a safety device |
| FR2895883A1 (en) * | 2006-01-10 | 2007-07-13 | Duna Entpr Sa | Programmable manual hair dryer has microprocessor to determine constant functional conditions corresponding to electrical and mechanical discrepancies involved in signaling information on display, when dryer is turned ON |
| EP1834540A1 (en) * | 2006-03-17 | 2007-09-19 | Giovanni Gandolfo | Electronically controlled system, with low energetic impact, for the contemporaneous drying and modelling of the hair, and related scheme for the construction, and ways of use |
| US20180125195A1 (en) * | 2014-12-16 | 2018-05-10 | Claudio Soresina | Hair dryer provided with an electric motor |
| DE202019102413U1 (en) * | 2019-04-29 | 2019-05-07 | Ebm-Papst Landshut Gmbh | Device for monitoring the operation of a fan |
Also Published As
| Publication number | Publication date |
|---|---|
| IT202000018784A1 (en) | 2022-01-31 |
| WO2022023933A1 (en) | 2022-02-03 |
| EP4188153A1 (en) | 2023-06-07 |
| US20230301415A1 (en) | 2023-09-28 |
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