CN1128121A - Treatment device for hair - Google Patents

Treatment device for hair Download PDF

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Publication number
CN1128121A
CN1128121A CN 95118408 CN95118408A CN1128121A CN 1128121 A CN1128121 A CN 1128121A CN 95118408 CN95118408 CN 95118408 CN 95118408 A CN95118408 A CN 95118408A CN 1128121 A CN1128121 A CN 1128121A
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CN
China
Prior art keywords
heating element
treatment device
switch
hair treatment
motor
Prior art date
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Granted
Application number
CN 95118408
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Chinese (zh)
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CN1078061C (en
Inventor
骆镇贤
梁添源
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JIANFU INDUSTRY Co Ltd
Kenford Industrial Co Ltd
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JIANFU INDUSTRY Co Ltd
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Publication date
Application filed by JIANFU INDUSTRY Co Ltd filed Critical JIANFU INDUSTRY Co Ltd
Publication of CN1128121A publication Critical patent/CN1128121A/en
Application granted granted Critical
Publication of CN1078061C publication Critical patent/CN1078061C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
    • A45D20/30—Electric circuitry specially adapted for hair drying devices

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  • Cleaning And Drying Hair (AREA)

Abstract

The hair-treating device includes casing with wind pipe, DC motor, fan or propeller driven by DC motor, electric heating elements inside wind pipe and control circuit for motor and heating elements. The control circuit includes the first switch for selecting operation voltage of hair-treating device from at least two power voltages, the second switch for selecting rated power of heating elements, the diode rectifier which is connected to motor and makes it operate in DC, and the serial diode-resistor circuit controlled by the second switch for cold operation.

Description

Hair treatment device
The present invention relates to a kind of hand-held hair treatment device, it can select operating voltage with switch at least two kinds of different AC power supplies voltages, and can be in the work of hot and cold (room temperature) attitude.
According to the present invention, a kind of hair treatment device is provided, it comprises: one has the casing of airduct; One direct current motor and by this motor-driven fan or screw passes through airduct in order to drive air; A plurality of heating element heaters are positioned at airduct; A circuit that in casing, is provided with, in order to control operation motor and heating element heater, this circuit comprises: one first electric switch, be used between at least two kinds of supply voltage values, selecting the operating voltage of hair treatment device, by rearranging the connection of at least one element in all heating element heaters, to keep the rated power of electrical heating elements, make it irrelevant with selected operating voltage; One second electric switch is used for the rated functional of selection heating element heater between the hot and cold attitude at least; A diode rectifier that is connected with motor is used to make motor to move under direct current; A diode-resistance series circuit, it can be switched to cold operation by second electric switch, in order to provide two-by-twice electric current to motor and heating element heater.
Diode rectifier preferably makes its diode cathode be connected to form a circuit node with motor one terminal, and the negative pole end of diode resistance series circuit is connected with described circuit node.
In a preferred embodiment, the resistance value of diode-resistance series circuit is more many greatly than the resistance of heating element heater.
Specifically, diode rectifier is made up of two diodes, these two diodes respectively with motor parallel to realize the full-wave rectification effect.
Each diode of diode rectifier is preferably in motor parallel and connects with a corresponding described heating element heater before.
This first electric switch is a single switching mechanism preferably.
In a preferred circuit, first electric switch connects in the following manner: it can be connected between first on off state and second switch state, for the former, all heating element heaters in fact all are cascaded, for the latter, one of heating element heater is in parallel with the heating element heater that other still are cascaded at least.
The resistance of described at least one heating element heater is preferably identical substantially with other heating element heater resistance sums.
In a concrete structure, circuit has two power supply terminals, first electric switch has 4 switch contacts, and first and second switch contacts are connected after a described power supply terminal, and third and fourth switch contacts is connected with the two ends of above-mentioned at least one heating element heater opposed polarity respectively.
More particularly, first electric switch is suitable for making its first and second switch contacts at the first on off state short circuit, and at the second switch state, then makes its first and second switch contacts respectively to the third and fourth switch contacts short circuit.
Preferably allow all heating element heaters in fact be cascaded.
Favourable mode is to make hair treatment device can connect the hot pattern of the different shelves with two of cold conditions by means of second electric switch.
To with reference to accompanying drawing the present invention be described in more detail only by the mode of example below, accompanying drawing is the circuit diagram according to the embodiment of a kind of hair treatment device of the present invention.
Referring to accompanying drawing, be depicted as the circuit of implementing a kind of hair dryers of the present invention, this hair dryers comprises the casing of airduct (not shown) in it, a direct current motor M and driven in order to drive the fan (not shown) of air by this airduct by this motor M.This hair dryers also comprises 4 heating element heater R that are arranged in the airduct 1To R 4When operation, motor M energising drive fan or screw etc. form the analog of a blowing device, promote air through being in the heating element heater R in the airduct 1To R 4, thereby the hot-air of dry hair is provided.This circuit design becomes can control motor M and heating R 1To R 4Operation, and this circuit also comprises the first and second electric switch SW 1And SW 2, 4 diode D 1To D 4, a resistance R 5With a constant temperature switch T.
Motor M has a pair of choking-winding L 1And L 2, be connected with the two-terminal of armature, form motor circuit jointly.A filter capacitor C is in parallel with motor circuit.Heating element heater R 3And R 4And diode D 2And D 3Become bridge connection around motor M, the motor circuit diagonal angle is connected across between circuit node A and another circuit node K, and circuit node A is formed on diode D 2And D 3Negative pole between, and circuit node K is formed on heating R 3And R 4Between.Be noted that diode D 2And D 3In parallel with motor M respectively to realize the full-wave rectification effect.For making direct current generator operation, diode D 2And D 3Constitute a diode rectifier, flow through motor M with the electric current of the half cycle that alternately makes the AC power opposed polarity by equidirectional, and capacitor C keeps current of electric stable as much as possible by the elimination pulsation of current from node A to K.
Heating element heater R 1And R 2Be connected in series on the node Q, node Q is at heating element heater R 3With diode D 2Between form.Therefore, as shown in, heating element heater R 1To R 4Be actually and be cascaded.Thermostatic switch is connected to heating element heater R 1Far-end.Resistance R 5With diode D 4Link together, form a series connection circuit, its negative pole links to each other with node A.
Hair dryers passes through switch SW 1Adjustment, both can be connected on 230V/50Hz, also can be connected on the power supply of 120V/60Hz and move.Voltage switch SW 1Be a single switching mechanism, it comprises four anchor tip T 1To T 4, can be at first on off state (joint T 1-T 2) and second switch state (joint T 1-T 3/ T 2-T 4) between switch, first state is used for the 230V/50Hz operation, by a movable bridge contact (being represented by dotted lines) joint T 1And T 2Short circuit, second switch state are used for 120V/60Hz operation, by movable bridge contact (being represented by dotted lines) respectively with joint T 1And T 3And T 2And T 4Short circuit.Joint T 3With heating element heater R 2Adjacent to heating element heater R 1An end be connected and joint T 4With heating element heater R 1The other end adjacent to thermostatic switch T is connected.Joint T 2J joins with circuit node, and node J is at heating element heater R 4With diode D 3Between form.
Hair dryers is designed to the operation of three kinds of different operating temperatures or electrical power level, is respectively cold, height and low state, can use switch SW 2Select.Temperature switch SW 2Three selection joint T are arranged 1' to T 3' and a public joint T 4'.Joint T 1' with resistance R 5Free end connect.Joint T 2' and T 3' the two all receives switch SW 1Joint T 1On, T 2' directly connect, and T 3' through diode D 1Connect indirectly.Select termination T 1', T 2' or T 3' be connected to termination T 4' determined cold, high or low attitude working method respectively.Supply voltage is to be connected across public terminal T 4' and thermostatic switch T apply, the effect of the two is equivalent to two power ends of circuit.
At first referring to the working condition of 230V/50Hz.In the high state pattern, source current, when positive half cycle, sequential flow is crossed heating R 1, R 2, R 3(and through diode D 2Enter motor M) and R 4, and cross heating element heater R in the negative half period sequential flow 4(and through diode D 3Enter motor M), R 3, R 2And R 1In the low state pattern, the positive half cycle of source current is by diode D 1End, thus heating R 1To R 4Rated power reduce approximately half (reducing to 150 watts) from 300 watts, temperature also reduces by half.Diode D 1Can oppositely connect, with the source current of blocking-up negative half period.
Should be noted that in high and low state two-mode heating element heater R 1To R 4In fact all be cascaded.In cold conditions, have only the source current of negative half period can flow through diode D 4This source current can not pass through diode D 2And D 3, but can pass through motor M, and order is by heating element heater R 3, R 2And R 1Because resistance R 5Resistance value ratio heating R 1To R 3Much bigger, the source current amount that can pass through is very limited, and makes heating element heater R 1To R 3Heat effect be very restricted (60 watts).
Below referring to the situation of 120V/60Hz.In the high state pattern, the circulation path of source current negative half period current component I 1And I 2Expression.Current component I 1Only flow through heating element heater R 1, and current component I 2Sequential flow is crossed heating element heater R 2, R 3(and through diode D 2Flow through motor M) and R 4The circulation path direction of the positive half cycle of source current is opposite, is reverse current component I 2Sequential flow is crossed heating element heater R 4(and through diode D 3Flow through motor M), R 3And R 2
Heating element heater R 1Resistance approximately and heating element heater R 2, R 3And R 4The summation of resistance identical.Should note heating element heater R 2To R 4In fact still be cascaded, and heating element heater R 1In fact but in parallel with them.This heating element heater R 1With other heating element heaters R 2To R 4Actual parallel connection makes all heating element heater R 1To R 4Total resistance reduced approximately half.Along with supply voltage is reduced to only about half of 120V from 230V, the source current amount is compared practically identical with the ruuning situation of 230V/50Hz, thus heating element heater R 1To R 4Rated power still is approximately 300W.Therefore, at least in the high state pattern, in fact the performance of hair dryers is not subjected to the influence of the supply voltage that changes between 230V/50Hz and 120V/60Hz.
As the situation in the 230V/50Hz operation, when low state pattern 120V/60Hz operated, the positive half cycle of source current was by diode D 1End, so heating element heater R 1To R 4Rated power reduce to approximately half (from 300W to 150W), thereby temperature also reduces by half.Therefore, the performance of hair dryers in fact also is not subjected to the influence of mains voltage variations in the low state pattern.When cold conditions, supply voltage does not influence operation from the variation of 230V to 120V at all, and this is because electric heater R 1Reality to connect influence more little.But, make an appointment with half because supply voltage has reduced, heating element heater R 1To R 4Rated power also will reduce half and be about 30 watts.
Should be noted that and heating element heater R 1To R 4Compare, motor M is only drawn very little electric current, thereby its existence does not influence the analysis to source current that above provides substantially.When supply voltage when 230V fades to 120V, no matter at high state or low state, R 3, R 4Electric current remain unchanged substantially, same, current of electric is also constant.Therefore, the speed of motor M keeps identical substantially.Have only as heating element heater R 1To R 4Do the time spent in an air heat, motor speed is only critical, because it influences air velocity, thus the temperature of the hot-air of influence output.Therefore, in cold conditions, motor speed is so unimportant relatively.
Though diode only allows the electric current one-way flow, whole associated diodes group can reconnect by opposite direction and not influence interlock circuit total running in ac operation.Therefore, in a slightly different embodiment, diode D 2, D 3And D 4All connect, promptly allow diode D by rightabout 2And D 3Positive pole and diode D 4Positive pole connect, form circuit node A, A leads to a terminal of motor M again, and this does not influence the total operation of above-mentioned hair dryer machine circuit.
It is contemplated that hair treatment device of the present invention can take to be different from other form of hair dryers, for example curler, hair fixing device or air brush.
The present invention only gives out in the mode of example, and those skilled in the art can to described embodiment make various improvement and/or change and do not exceed as claims the special scope of the present invention that limits.

Claims (14)

1, a kind of hair treatment device, comprise: a casing that has airduct, one drives air by the direct current generator of this airduct with by this motor-driven fan or screw, be arranged on a plurality of heating element heaters in the described airduct, and one be arranged on being used in the described casing and control the circuit of described motor and the operation of described heating element heater, this circuit comprises: one first electric switch, be used between at least two kinds of supply voltage values, selecting the operating voltage of described hair treatment device, this first switch is kept the rated power of heating element heater by the connected mode of rearranging at least one element in all heating element heaters, makes it irrelevant with selected operating voltage; One second electric switch is used between hot at least and cold conditions pattern selecting the rated power of heating element heater; A diode rectifier that links to each other with described motor is used for making described motor DC work; And a diode-resistance series circuit, this circuit can be connected with at the cold conditions mode operation by described second electric switch, is used for making restricted electric current flow through described motor and heating element heater.
2, a kind of hair treatment device as claimed in claim 1, wherein, the diode cathode of described diode rectifier links to each other with a motor terminal forming a circuit node, and the negative pole end of described diode-resistance series circuit is connected with this circuit node.
3, a kind of hair treatment device as claimed in claim 1, wherein, the diode cathode of described diode rectifier is connected with described motor one end, form a circuit node, and the positive terminal of described diode-resistance series circuit is connected with described circuit node.
4, a kind of hair treatment device as claimed in claim 1, wherein, the resistance of described diode-resistance series circuit is more much bigger than the resistance of described heating element heater.
5, a kind of hair treatment device as claimed in claim 1, wherein, described diode rectifier is by constituting with two diodes of described motor parallel respectively, to realize full-wave rectification.
6, a kind of hair treatment device as claimed in claim 5, wherein, in the described diode rectifier each diode with motor parallel before connect with a corresponding described heating element heater.
7, a kind of hair treatment device as claimed in claim 1, wherein, described first electric switch is a single switching mechanism.
8, a kind of hair treatment device as claimed in claim 1, wherein, the connected mode of described first electric switch is: this switch can be changed between first on off state and second switch state, all described heating element heaters are actually and are cascaded in first on off state, in the second switch state, it is in parallel with other heating element heaters that still is cascaded that at least one described heating element heater is actually.
9, a kind of hair treatment device as claimed in claim 8, wherein, the resistance of described at least one heating element heater is basic identical with the resistance summation of other heating element heaters.
10, a kind of hair treatment device as claimed in claim 8, wherein, described circuit has two power supply terminals, and described first electric switch has four switch contacts, these switch first and second joints are connected on after the described power supply terminal, and third and fourth switch contacts is connected with the two ends of described at least one heating element heater respectively.
11, a kind of hair treatment device as claimed in claim 10, wherein, described first electric switch is suitable for making its first and second switch contacts short circuit together when described first on off state, when described second switch state, make its first and second switch contacts respectively with the third and fourth switch contacts short circuit.
12, a kind of hair treatment device as claimed in claim 8, wherein, all heating element heaters are actually and are cascaded.
13, a kind of hair treatment device as claimed in claim 1, this device can be changed between the hot mode of operation of cold conditions and two kinds of different brackets with described second electric switch.
14, a kind of hair treatment device as claimed in claim 1, this device is a kind of hair dryers.
CN 95118408 1994-09-15 1995-09-15 Treatment device for hair Expired - Fee Related CN1078061C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9418604.6 1994-09-15
GB9418604A GB2293098B (en) 1994-09-15 1994-09-15 Hair treatment device

Publications (2)

Publication Number Publication Date
CN1128121A true CN1128121A (en) 1996-08-07
CN1078061C CN1078061C (en) 2002-01-23

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CN 95118408 Expired - Fee Related CN1078061C (en) 1994-09-15 1995-09-15 Treatment device for hair

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CN (1) CN1078061C (en)
DE (1) DE19534105A1 (en)
GB (1) GB2293098B (en)
HK (1) HK1010319A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114711527A (en) * 2022-03-10 2022-07-08 广东精装照明有限公司 Hair drier integrated circuit capable of switching states automatically

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632029A1 (en) * 1996-08-08 1998-02-12 Braun Ag Electrical circuit for the power supply
US7153286B2 (en) 2002-05-24 2006-12-26 Baxter International Inc. Automated dialysis system
DE202004011651U1 (en) * 2004-07-24 2005-12-29 Wik Far East Ltd. Supply voltage connectable travel hair care device for use as travel hair dryer, has thermostat switch, and power limiter that is activated in motor circuit for limiting current supplied to electric motor during overload situation
US8027572B2 (en) 2008-02-22 2011-09-27 Baxter International Inc. Dialysis machine having multiple line voltage heater
DE102010053973A1 (en) 2010-12-09 2012-06-14 Fresenius Medical Care Deutschland Gmbh Medical device with a heater
TWI609569B (en) * 2016-10-12 2017-12-21 建準電機工業股份有限公司 Hairdryers and fan rotation speed control modules thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711988A (en) * 1985-10-01 1987-12-08 Windmere Corporation Electric hair dryer with multi-mode switch for air temperature and flowrate control
KR890003277B1 (en) * 1985-10-02 1989-09-06 산요덴끼 가부시기가이샤 Electric heather

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114711527A (en) * 2022-03-10 2022-07-08 广东精装照明有限公司 Hair drier integrated circuit capable of switching states automatically
CN114711527B (en) * 2022-03-10 2024-05-14 宁波鼎高电器科技有限公司 Self-switching state blower integrated circuit

Also Published As

Publication number Publication date
GB2293098A (en) 1996-03-20
GB9418604D0 (en) 1994-11-02
DE19534105A1 (en) 1996-03-21
HK1010319A1 (en) 1999-06-17
GB2293098B (en) 1998-10-07
CN1078061C (en) 2002-01-23

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