CN105764376B - hair styling iron - Google Patents
hair styling iron Download PDFInfo
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- CN105764376B CN105764376B CN201380081147.1A CN201380081147A CN105764376B CN 105764376 B CN105764376 B CN 105764376B CN 201380081147 A CN201380081147 A CN 201380081147A CN 105764376 B CN105764376 B CN 105764376B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 42
- 229910052742 iron Inorganic materials 0.000 title description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 114
- 230000004913 activation Effects 0.000 claims abstract description 36
- 230000004044 response Effects 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000002159 abnormal effect Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 238000013021 overheating Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract description 6
- 230000003685 thermal hair damage Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 235000000396 iron Nutrition 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 206010019049 Hair texture abnormal Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003741 hair volume Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/28—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for controlling or indicating the temperature
-
- 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
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
- A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel by electricity
-
- 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
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/001—Hair straightening appliances
Landscapes
- Control Of Temperature (AREA)
- Control Of Resistance Heating (AREA)
Abstract
A hair styling tool has a temperature adjustment control to mitigate thermal damage to the hair. The hair styling tool comprises a pair of heated jaws (10, 11) which can be closed to grip hair. The power control circuit (20) is responsive to an activation sensor (22) and a temperature sensor (21), wherein the activation sensor (22) senses when the jaws (10, 11) are closed and the temperature sensor (21) senses the temperature of the heating elements (13, 14) on the jaws (10, 11). In response to the first activation output, the power control circuit (20) begins monitoring the rate of change of temperature of the heating elements (13, 14) and operates the heating elements (13, 14) at a power level below the steady state power level in response to the rate of decrease exceeding a predetermined level.
Description
Technical field
The present invention relates to the electronics hair irons of thermal finalization and moulding for hair, and particularly forming hair is permed
The temperature of device is adjusted.
Background technique
Hair hair iron for being bent or being straightened hair uses the outer surface contacted with hair to be typically plate shape or tubular
Heating element.Heating element has relatively low thermal mass, so that hair iron is easy to use, because they can be very short
Time in (such as several seconds) reach operation temperature.Heating element is separately thermostatically controlled, wherein supporting on the heating element
Hair can apply heat load, be intended to reduce the temperature of heating element.In response, thermostat increases power to attempt to restore
Set temperature.Using this conventional temperature regulation technology forming hair hair iron the shortcomings that be to cause power consumption penalty, it is special
It is not for battery powered hair hair iron, power consumption penalty has apparent influence to performance.
Due to using low operating temperature to will increase moulding time, or the modeling effect of generation difference, therefore temperature should be set
It is set to highest level and avoids causing pyrolytic damage to hair simultaneously.However, this is not simple thing, because if when processing
Between it is too long, the heat transmitted may also lead to pyrolytic damage.Other than time-temperature curve, other factors also will affect and make
A possibility that at pyrolytic damage: the inherent characteristic of for example a human hair, be applied to hair inorganic agent (such as water or other softening
Agent) and using hair hair iron mode (size of the pigtail of processing, the tension for being applied to hair etc.).Therefore, to using
For person, a possibility that correct temperature is to reduce pyrolytic damage is selected to be difficult for any specific operation.
Patent disclosure US2012/0005550 describes the method that the temperature of hair straightening hair iron is adjusted, wherein the hair
There are two the temperature sensors of the temperature for incuding hair for the setting of aligning hair iron.Two sensors are installed on heating element
Opposite side, thus when pulling the hair iron along hair, sensor measurement will processed hair temperature, simultaneously
The temperature of the just processed hair of another sensor measurement.However, in fact, since two sensors are installed on identical member
Part, their output overwhelm (overwhelmed) by the thermal output of element, therefore are difficult to obtain between the output of two sensors
Obtain measurable difference.
Patent disclosure US2011/0253164 also illustrates the temperature control method of hair straightening hair iron, wherein the hair
There are two the pawls for clamping hair for aligning hair iron tool.The closure of sensor probe claws and the setting temperature for increasing heating element
Degree.However, increasing power in this way for heating element, there is no solve to save power or avoid asking for pyrolytic damage for this method
Topic.
The purpose of the present invention is overcome or substantially improve disadvantages described above without generating unfavorable shadow to mouldability
It rings.More generally, the object of the present invention is to provide a kind of improved forming hair hair irons.
Summary of the invention
According to an aspect of the invention, there is provided a kind of forming hair tool, comprising:
At least one heating element, the heating element have the heating surface for contacting hair；
Pairs of pawl, the heating element are disposed in one of them of the pawl, and the pawl is connected to open
It is moved between position and closed position, in the open position, can remove or be inserted into hair between the pawl；It is closed described
Coincidence is set, and another of the pawl squeezes the hair towards the heating surface；
Temperature sensor, the temperature of the neighbouring heating surface of heating element described in the temperature sensor senses；
Sensor is activated, when pawl described in the activation sensor sensing is in the closed position and the first activation of generation is defeated
Out；
Power control circuit, the power control circuit in response to the activation sensor and the temperature sensor, and
It can operate to operate the heating element and be in steady state power level to keep the temperature at stable state；
The power control circuit includes the device of the time fall off rate for determining the temperature of the heating element, with
And for monitoring the time fall off rate of the temperature and the temperature to detect the abnormal heat load on the heating element
Device；
The power control circuit can be operated to start the spy to abnormal heat load in response to the first activation output
It surveys, and operates the heating element in the power water lower than the steady state power level in response to abnormal heat load
It is flat.
The steady state power level is the power level or its equivalent for leading to stable state component temperature.For example,
Constant power level, or the stable state component temperature obtained by the power level of ringing, this hunting power
Horizontal time average is considered steady state power level.Lower than the function of the steady state power level
Rate level can be zero-power level.
Selectively, the tool can also include multiple power that user can select for the heating element
The input unit of setting, the control circuit are operably connected to the input unit and can operate to operate the heating
Element is in horizontal corresponding to the steady state power of the selected power setting of user, and in response to abnormal heat load
Detection, operate the heating element and be in horizontal lower than relevant to the selected power setting of user steady state power
Power level.
Preferably, for monitoring the time fall off rate of the temperature and the temperature to detect described in abnormal heat load
Device include for by the time fall off rate of measured temperature compared with the scheduled fall off rate for representing abnormal heat load
Device, when measured time fall off rate be less than the predetermined fall off rate when, the monitoring arrangement detects abnormal
Heat load.Optionally, since hair can't be lower than the temperature damage of critical-temperature, for monitoring the temperature and the temperature
The device of the time fall off rate of degree includes the device of the temperature that will be sensed compared with scheduled critical-temperature, only when being felt
When the temperature that should be arrived is more than the predetermined critical temperature, the monitoring arrangement just detects abnormal heat load.
Preferably, for monitoring the time fall off rate of the temperature and the temperature to detect described in abnormal heat load
Device includes: for the temperature sensed to be calculated temperature with first, calculates temperature lower than the second of the first calculating temperature
And the device that compares of third temperature lower than the second calculating temperature；And by the measured temperature fall off rate with
First predetermined fall off rate makes a reservation for lower than the second predetermined fall off rate of the first predetermined fall off rate and lower than described second
The device that the predetermined fall off rate of the third of fall off rate compares, when the temperature sensed be greater than it is described first calculate temperature and
When measured fall off rate is lower than the first predetermined fall off rate, or works as sensed rate and be less than second calculating
When temperature and measured fall off rate are less than the second predetermined fall off rate, or work as sensed temperature be less than it is described
Third calculates temperature and when measured fall off rate is less than the third reference rate, and the monitoring arrangement detects exception
Heat load.
When the rate sensed is greater than the first calculating temperature and measured fall off rate less than described first
When predetermined fall off rate, or work as that sensed temperature is more than the second calculating temperature and measured fall off rate is less than
When the second predetermined fall off rate, or the temperature sensed is more than that the third calculates temperature and measured lower reduction of speed
When rate is less than the third reference rate, the power control circuit, which is operable to reduce in the same amount, is applied to the heating
The power level of element.Alternatively, temperature is calculated and measured decline when the temperature sensed is greater than described first
When rate is less than the first predetermined fall off rate, or works as sensed temperature and be more than the second calculating temperature and surveyed
When the fall off rate obtained is less than the second predetermined fall off rate, or the temperature sensed is more than that the third calculates temperature simultaneously
And measured fall off rate be less than the third reference rate when, the power control circuit be operable to the first amount reduce
It is applied to the power level of the heating element；And work as sensed temperature to be more than the second calculating temperature and surveyed
Rate when being less than first reference rate, or when measured temperature is more than the third reference temperature and measured
Rate be less than second reference rate when, the power control circuit be operable to be greater than first amount the second amount
Reduce the power level for being applied to the heating element；And work as sensed temperature more than the third reference temperature and
When measured rate is less than first reference rate, the power control circuit is operable to be greater than second amount
Third amount reduces the power level for being applied to the heating element.
Preferably, the device for measuring the temperature fall off rate includes between the measurement of continuous fall off rate
The time set at settling time interval；The time set establishes first calculated since the time of the first activation output, the
Two and third time interval, the fall off rate measured by the ending of first, second and third time interval respectively with institute
The first, second and third predetermined fall off rate is stated to be compared.
Preferably, the power control circuit storage corresponds to the reference temperature of steady state power output, and
The first, second and third calculating temperature is calculated by mode below: subtract scheduled first from the reference temperature,
Second and third reference value is to limit the described first, second and third predetermined fall off rate.
Preferably, the power control circuit operates the heating element with constant temperature mode and is in the first power level, should
First power level changes as the function of temperature deviation to keep set temperature, and the temperature deviation includes instantaneous component temperature
Difference between the set temperature, and wherein the power control circuit include for by the fall off rate and reference
The device that fall off rate compares, and when measured fall off rate is greater than the reference fall off rate, the power control
Circuit is in the function for being all higher than first power level in all temperature deviations with heating element described in enhancement mode operation
Rate is horizontal, and the measured fall off rate until detecting temp of heating element is less than the reference rate or the heating element
Temperature is in the set temperature for corresponding to steady state power output.
Preferably, when the pawl is in the open position, the activation sensor generates the second activation output, and
The power control circuit can operate in the presence of the second activation output, and in the heating element in lower than institute
After the power level operation for stating steady state power level, the heating element described in enhancement mode operation, until what is applied
It is horizontal that power level is again equal to the steady state power, or occurs again until detecting abnormal heat load.
Another aspect provides a kind of method for the control power in forming hair tool, which is made
Type tool has heating element, temperature sensor, pairs of pawl and activation sensor, the temperature sensor senses heating element
Adjacent heating element surface temperature, the heating element is arranged in one of them of the pawl, the pawl be connected with
It moves between the open and the closed positions, in the open position, can remove or be inserted into hair between the pawl,
The closed position, another of the pawl squeeze the hair towards the heating surface, the activation sensor sensing
When the pawl is in the closed position and generates the first activation output；It the described method comprises the following steps:
It operates the heating element and is in steady state power level；
When generation first, which activates, to be exported, regularly measures temperature and calculate the time fall off rate of temperature and will be calculated
To rate compared with set rate, and
When measured temperature fall off rate is less than the set rate, the power for being applied to the heating element is reduced
Level is to avoid the pyrolytic damage as caused by overheating.
The present invention provides forming hair hair irons, and the forming hair hair iron is in operational use effectively and efficient, and
And the forming hair hair iron has whole simple designs to minimize manufacturing cost.According to measured temperature change speed
Rate responds, and when detecting abnormal low heat load, the power by reducing element can save power, and pass through this side
Method avoids overheat so that a possibility that pyrolytic damage is mitigated.
Detailed description of the invention
Method by way of example is described with reference to the attached figures to preferred form of the invention below, in which:
Fig. 1 is a kind of schematic cross-section of the hair hair iron of embodiment according to the present invention；
Fig. 2 is the functional block diagram of the circuit of the hair hair iron for Fig. 1；And
Fig. 3, Fig. 4 a, Fig. 4 b and Fig. 5 be the heating element of the hair hair iron for Fig. 1 temperature and electric current relative to when
Between characteristic diagram, and show the diagram by the temperature of the hair of heating element heats relative to the time.
Specific embodiment
With reference to attached drawing, Fig. 1 shows the hand-held electronic hair hair-waving with the first elongation pawl 10 and the second elongation pawl 11
The first embodiment of device, wherein the first elongation pawl 10 can be connected with the second elongation pawl 11 in their far-end.First stretches
Long pawl 10 and the second elongation pawl 11 can be hollow shaped polymer structures, and accordingly include elongated in their distal end
Heating element 13,14.Heating element 13,14 is the component for including the exterior part 16,17 made of metal (such as chromium steel).Outside
Component 16,17 corresponding heating surfaces 16a, 17a are complementary, generally flat inner surfaces, which, which can be, was polished
's.Surface 16a, 17a are relative to each other and are configured to contact hair.Exterior part 16,17 is by corresponding internal resistor element 15a, 15b
Heating, internal resistor element 15a, 15b are configured as flat structure and are directly arranged in exterior part 16,17.Pass through function
Rate supply 18, such as it is connected to the electric wire of main power source, power can be provided from power control circuit 20 to heating element 13,14.
Pawl 10,11 can be connected by hinge 12 or any similar mechanism, and median claw 10,11 is connected in open position
It is moved between (see Fig. 1) and closed position (not shown).In open position, hair can be inserted into or removed between pawl.It is closing
Coincidence is set, and pawl 10,11 clamps hair and squeezes the hair between heating surface 16,17.
Temperature sensor 21 and activation sensor 22 are also connected to power control circuit 20.The induction of temperature sensor 21 is close
The temperature of the heating element assembly 14 of heating surface 17a, and can be such as thermistor or thermocouple.Activate sensor 22
By the way that mechanical, optically or magnetically when in the close position pawl 10,11 is and generation is transmitted to power control circuit to incude for device
20 the first activation output, and the second activation output is correspondingly provided when pawl is opened.
It is not depicted in Fig. 1 but be shown in Fig. 2 with simplified schematic form is input unit 25 and display device 26.Example
Such as, input unit 25 is the button switch for allowing multiple and different power settings of user's selection heating element 13,14.
Display device 26 is for showing the selected power setting of user.Power control circuit 20 is based on from temperature sensor 21
Power transfer is passed through heating element 13,14 by feedback, such as the electric current of heating element 13,14 is supplied to by switching on or off.
Each power setting and independent specific steady state power horizontal relevance allow to be maintained at specific when not in use
Desired temperature or range of set value.
The operation temperature of limitation heating element 13,14 causes pyrolytic damage to be important to avoid to hair.Hair hair iron
In main heat transfer mechanisms be conduction from heating element 13,14 to hair.When pulling hair iron along hair, by securely
4 grams of typical case of dry hair of clamping contacts well with heating surface 16a, 17a and provides good heat transmitting.Make when in this way
Used time, the temperature of heating element 13,14 will be typically held in acceptable range without any modified measure.
However, since abnormal low load can not provide sufficient heat transmitting, it is thus possible to so that heating element 13,14
Temperature it is excessively high.The heat load for be easy to causeing the common exception excessively heated low can be caused by following: for example, processing is reduced
The hair of amount, or increase applying heat in the time of the arbitrary portion of hair.
It is remembered that one of purpose of the invention be protect hair not overheated damage without to formative nature
Can have an adverse effect.In order to reach this purpose, according to an aspect of the present invention, temperature be more than acceptable limit it
Before, the power level of heating element is applied to by the presence and adjusting that detect abnormal low-load, power control circuit uses
Temp of heating element information carrys out the generation of the excessively high condition of predicted temperature.By predicting the condition before condition physical presence,
Can gradually regulation power it is horizontal, to cause less influence to mouldability.
It has been determined that when the low heat load of above type of general exception is applied to heating element 13,14 and adds
When hot surface 16a, 17a are heated to 180-250 Celsius and spend, the temperature of heating surface 16a, 17a is with normal negative lower than most of
The rate of the speed characteristic of load declines.It is by the temperature fall off rate of measurement heating element 13,14 and the rate is low with exception
The set rate characteristic of heat load is compared, and control system of the invention has been advantageously employed this phenomenon.When measured rate
It (represents lower than reference rate and there is abnormal low heat load on hair hair iron), the power for being transmitted to heating element can be subtracted
Lower level is arrived less.By this arrangement, the temperature of heating surface 16a, 17a be restricted such that avoidable overheat and because
This caused pyrolytic damage.
Due to being preferably that temperature is maintained within the scope of one using preceding holding steady state temperature.It is in office
When carve, the temperature fall off rate of heating element 13,14 is likely lower than the set rate characteristic of abnormal low thermal load, it is therefore desirable to
By such case in operation there is a situation where this low drop-out rate differentiations.This can be reached by using activation sensor
At when in the close position the sensor sensing pawl 10,11 is and generates the first activation output.Once the first activation output quilt
It receives, power control circuit 20 can start to monitor the fall off rate of temperature.
A series of survey has been carried out using different heating loads using according to the forming hair tool of illustrated embodiment
Examination, to generate the temperature-time curve for characterizing a variety of different loads.Beginning stable state of the test in 120-250 degree Celsius
Temperature range carries out, and uses the hair simulation part of heat-conducting metal (aluminium) strips as load.Depending on used item
Size, this replicate or imitate the Temperature-time characteristic of the volume length of dry hair.4 grams and 2 grams of hair simulation part is used
The hair that length to simulate 4 grams and 2 grams is 200mm.The typical operation cycle is considered, wherein in selected stable state function
Rate is horizontal, in closure pawl to obtain steady state temperature first before clamping simulating piece, then in 5 seconds from one end of simulating piece to
The other end pulls forming hair tool, then discharges hair.Transient surface temperature on 155 degree Celsius or higher simulating piece is
Critical value will cause more than the critical value and cross pyrolytic damage to hair.
Based on obtained curve and analysis, establish for the peculiar with reference to fall off rate of abnormal low heat load.?
Shown in embodiment, by using the time change rate between -10 DEG C/s and -8 DEG C/s, obtain and satisfactorily make
Type result.Particularly, it is surveyed from the first activation output, the decline for being 10 DEG C at first second, or is being 19 DEG C after two seconds
Decline, or decline when reaching the third second for 27 DEG C is satisfactory, and the fall off rates for being less than these numbers are shown
It may cause overheat.Reference temperature is selected to allow to correct early enough and be prevented with being declined by the smallest power level
Overheat, and evening enough is to avoid unnecessary adjusting.Value for reference rate and reference temperature be it is empirically determined, with
The result that the tool of the embodiment for shown in provides.However, it should be understood that this is intended to illustrate invention rather than limits
The present invention.
Fig. 3, Fig. 4 a, Fig. 4 b and Fig. 5 show the temperature (topmost) of heating element 13,14, different hair simulation parts
Temperature (centre) and be supplied to the electric current (lowest part) of heating element 13,14 respectively with the variation of time.It is supplied to and adds
The electric current of thermal element 13,14 is directly proportional to power, since voltage is constant, can control power water by controlling electric current
It is flat.As shown, keeping stable state temperature by using steady state power or levels of current when hair iron is not used by
Degree.Although the transient current for being supplied to element can actually change so that element is maintained at steady state temperature, for
The time average of given steady state temperature, electric current or power level is constant.Before the procedure, stablize shape by providing
The power control circuit 20 of state power output, heating element 13,14 are maintained at 200 DEG C of setting value, wherein in the stable shape
State power output, about 1 ampere of electric current flows through element 13,14 and hair simulation part is in room temperature.In power control circuit
20 under thermostatic control mode when operating, and heating element 13,14 obtains the temperature.In thermostatic control mode, control circuit is in perseverance
Warm power level operation, the constant temperature power level become with temperature deviation between the transient temperature and set temperature of element or difference
Change, i.e., temperature deviation is higher, and power level is higher.Constant temperature power level for given temperature deviation can be for example by looking into
Table or the calculating by being executed by power control circuit 20 is looked for determine.
Fig. 3 shows the operation under normal heat load, which includes 4 grams of hair simulation part.At the 10th second
When, pawl is clamped on simulating piece, and power control circuit 20 receives the first activation output, starting timer and record start temperature
Degree.In timer after 1 second, power control circuit 20 reads the transient temperature of heating element and by subtracting from initial temperature
The result is simultaneously estimated the first fall off rate divided by elapsed time by Current Temperatures.Then, by first fall off rate with deposit
The fall off rate stored up in the scheduled 10 DEG C/s of the memory body of the circuit is compared.Since the fall off rate of measured time is equal to
Or it is greater than scheduled fall off rate, therefore power control circuit 20 is in response according to the constant temperature power determined by power circuit 20
The electric current of the directly proportional increase heating element 13,14 of horizontal and between transient temperature and initial temperature difference.In timer
Behind second second and third second, by measuring respectively in 2 seconds and in 3 seconds to calculate fall off rate, and in two kinds of feelings
Under condition, the rate calculated is respectively equal to or greater than 9 DEG C/s and 8 DEG C/s.In all cases, second second and third second
Afterwards, the fall off rate calculated is equal to or more than stored predetermined fall off rate, therefore there is no to normal thermostatic control
" interference ", and electric current can be further improved, and can still promote the final temperature of 4 grams of simulating pieces to falling in heat
The critical value of damage maximum value below.5 seconds after starting, Fig. 3 show the maximum temperature of hair appear in pawl open with
Discharge the eve of hair.When pawl is opened, the second activation output for carrying out self-activation sensor 22 is sent out to power control circuit 20
Signal is out to stop monitoring rate temperature change, while keeping steady state temperature according to the setting of input unit 25.
Fig. 4 a and Fig. 4 b show feature identical with Fig. 3, but are that 2 grams of simulating piece (compared with Fig. 3, is represented
The hair volume of the half of normal moulding, and therefore generate abnormal low heat load).After one second that pawl is closed, power control
Circuit 20 processed determines fall off rate less than 10 DEG C/s.Correspondingly, if the power input of heating element 13,14 is maintained at stable
The risk of overheat will be present in status level.Therefore power control circuit 20 detects abnormal low heat load, and added by operation
Thermal element 13,14 is in the power level lower than steady state power level (particularly in zero-power level, i.e. power control
The power supply of 20 cutting member of circuit) reduction mode and make a response.From second second of initial calculation and third second
Ending calculates fall off rate, and in both cases, rate calculated is respectively smaller than 9 DEG C/s and 8 DEG C/s, therefore function
Heating element 13,14 is maintained at the power level lower than steady state power level by rate control circuit 20.
Similarly, when the temperature incuded is more than that the second calculating is temperature (200 DEG C -18 DEG C=182 DEG C) and measured
When fall off rate refers to 9 DEG C/s of fall off rate less than second after two seconds, or works as incuded temperature and calculate temperature more than third
(200 DEG C -24 DEG C=176 DEG C) are spent and when measured fall off rate is less than 8 DEG C/s of third reference rate, if at first second
Power level does not change later, then power control circuit 20 will be next at second second and of the calculating from activation signal
The power level for being applied to heating element is reduced to zero within three seconds.
Fig. 4 a and Fig. 4 b show power level lower than steady state power level operation and pawl be opened (two
Occur in a chart in time=15s) after, for controlling two options to the power supply of element.Fig. 4 a is shown
Power control circuit 20 operates under constant temperature power control mode, and according to constant temperature no-load mode according to the wink of heating element
Temperature deviation or difference between Shi Wendu (about 164 DEG C) and set temperature (200 DEG C) increase power.However, such as Fig. 4 a
It is shown, after using and opening pawl, need just can get set temperature within 3 or 4 seconds.Fig. 4 b shows enhancing control model
(boost control mode), quickly than the constant temperature mode temperature of raised elements.This enhancement mode can be in power
Level is selected lower than after the operation of steady state power level by power control circuit 20 to restore more quickly.When in power
When operating in the case that level is horizontal lower than steady state power, this scheduled enhancement mode appears in the second activation output and refers to
After showing pawl to open.According to enhancement mode, for all temperature deviations, power control circuit 20 is operated than constant temperature mode
Higher power level provides power to element.The highest point of the power of element is higher than the highest point of constant temperature mode.For example, phase
Than in 2 amperes in traditional constant temperature mode, power highest point can correspond to 3 amperes.As shown, the result is that the temperature of element
It is horizontal (according to Fig. 4 b, in about 2 seconds) that degree is quickly restored to setting.
As shown in table 1, for normal load, power control circuit 20 is operated with constant temperature mode, in this operation, monitoring
The time fall off rate of component temperature (Tr), as long as and Tr be in correspond to come self-alignment (lower part) predetermined fall off rate and (on
Portion) with reference to the speed range of the time of the first activation output between fall off rate, then then will not be to traditional thermostatic control
Mode makes change.When below and above elapsed time Tr is located at these ranges, then power control circuit 20 will
Respectively with reduction mode and enhancement mode operation.As described above, heating element is set for current power in reduction mode
Lower than steady state power level power level operate.In enhancement mode, heating element is in the height for constant temperature mode
It is operated in the power level of power level.For example, for measured difference identical between instantaneous component temperature and set temperature
It is different, it can be 20%-60% higher than being used for the power of element in constant temperature mode for the power of element in enhancement mode.
Table 1: it is selected according to the control model of temperature fall off rate
Power control circuit 20 can also (it be intended to be faster than normal rate and reduce in response to abnormal high heat load
The temperature of element) and operation is with increased wattage so that not influencing mouldability in the case where enhancing response modes.Fig. 5, which is shown, to be applied
The high heat load of the such exception being added on the tool of 6 grams of hair simulation part form.For example, the note in power control circuit 20
Recalling body can store the reference fall off rate higher than the first predetermined fall off rate.When measured fall off rate is fallen in reference to decline
When between rate and the first predetermined fall off rate (for example, after 1 second between 10 DEG C/s and 16 DEG C/s), power control circuit 20
With thermostatic control scheme control heating element 13,14, such as power is with measured component temperature and corresponding to stable state function
The directly proportional increase of difference between the set temperature of rate level.However, referring to lower reduction of speed when measured fall off rate is greater than
Rate (for example, being greater than 16 DEG C/s after 1 second), control circuit is with horizontal (higher than by tradition in continuously higher increased wattage
Thermostatic control mode defined by those) enhancement mode operation heating element, until detecting measured heating element
The fall off rate of temperature is less than reference rate or heating element rate is in the setting temperature for corresponding to steady state power output
Degree.It is small in the measured fall off rate for the temp of heating element for increasing to higher increased wattage level and then detecting
After reference rate, power control circuit 20 is progressively decreased the power level for being applied to heating element, until the application
Power level is again equal to steady state power level or temperature, or occurs again until detecting abnormal low thermal load.When reaching
To when steady state power is horizontal or temperature, power control circuit 20 is restored to normal thermostatic control mode.
Only it has been illustrated with many aspects of the invention.It should be understood that without prejudice to model of the invention
In the case where enclosing, various modifications and supplement can be made to the present invention.
Claims (10)
1. a kind of forming hair tool, comprising:
At least one heating element, the heating element have the heating surface for contacting hair；
Pairs of pawl, the heating element are disposed in one of them of the pawl, and the pawl is connected in open position
It is moved between closed position；In the open position, hair can be removed or is inserted between the pawl；In the closure position
It sets, another of the pawl squeezes the hair towards the heating surface；
Temperature sensor, the temperature of the neighbouring heating surface of heating element described in the temperature sensor senses；
Sensor is activated, when pawl described in the activation sensor sensing is in the closed position and generates the first activation output；
Power control circuit, the power control circuit can be grasped in response to the activation sensor and the temperature sensor
Make to operate the heating element and be in steady state power level to keep the temperature at stable state；
The power control circuit includes the device of the time fall off rate for determining the temperature of the heating element, Yi Jiyong
The device of the abnormal heat load on the heating element is detected in the time fall off rate of the monitoring temperature and the temperature；
The power control circuit can be operated to start the detection to abnormal heat load in response to the first activation output, and
And the heating element is operated in the power level lower than the steady state power level in response to abnormal heat load.
2. forming hair tool according to claim 1, wherein lower than the power of the steady state power level
Level is zero-power level.
3. forming hair tool according to claim 1 or 2, wherein for monitor the temperature and the temperature when
Between fall off rate with the described device for detecting abnormal heat load include for by the time fall off rate of the temperature with represent it is different
The device that the predetermined fall off rate of normal heat load compares, when the time fall off rate of the temperature is less than the predetermined fall off rate
When, for monitoring that the described device of time fall off rate of the temperature and the temperature detects abnormal heat load.
4. forming hair tool according to claim 1 or 2, wherein for monitor the temperature and the temperature when
Between fall off rate with the described device for detecting abnormal heat load include:
For the temperature sensed to be calculated temperature with first, first the second of temperature is calculated lower than this and calculates temperature and low
In the device that the third temperature of the second calculating temperature compares；
And by the time fall off rate of the temperature and first with reference to fall off rate, lower than this first with reference to the of fall off rate
Two thirds with reference to fall off rate and lower than described second with reference to fall off rate refers to the device that fall off rate compares；
(i) it is lower than when the temperature sensed greater than the time fall off rate of the first calculating temperature and the temperature described
When the first reference fall off rate, or
(ii) it is less than institute when the temperature sensed is less than the time fall off rate that described second calculates temperature and the temperature
When stating second with reference to fall off rate, or
(iii) when the time fall off rate that the temperature sensed is less than third calculating temperature and the temperature is less than institute
When stating third with reference to fall off rate,
For monitoring that the described device of the time fall off rate of the temperature and the temperature detects abnormal heat load.
5. forming hair tool according to claim 4, wherein the power control circuit is operable to:
(i) it is less than when the temperature sensed greater than the time fall off rate of the first calculating temperature and the temperature described
When the first reference fall off rate, the power control circuit reduces the power level for being applied to the heating element with the first amount；
Or
(ii) when the temperature sensed is more than that the described second time fall off rate for calculating temperature and the temperature is less than institute
When stating second with reference to fall off rate, the power control circuit reduces the power for being applied to the heating element with first amount
It is horizontal；Or
(iii) when the time fall off rate that the temperature sensed calculates temperature and the temperature more than the third is less than institute
When stating third with reference to fall off rate, the power control circuit reduces the power for being applied to the heating element with first amount
It is horizontal.
6. forming hair tool according to claim 5, wherein for determining that the device of the temperature fall off rate includes
Time set for the settling time interval between the measurement of continuous fall off rate；The time set is established from the first activation
The time of output starts the first, second and third time interval calculated, occurs in first, second and third time interval
The time fall off rate of the temperature of ending be compared respectively with described first, second and third with reference to fall off rate.
7. forming hair tool according to claim 5 or 6, wherein the power control circuit storage corresponds to described
The reference temperature of steady state power output, and the first, second and third calculating temperature is calculated by mode below:
Scheduled first, second and third reference value is subtracted from the reference temperature to limit first, second and third reference
Fall off rate.
8. forming hair tool according to claim 1, wherein described in the power control circuit is operated with constant temperature mode
Heating element is in the first power level, which changes as the function of temperature deviation to keep set temperature,
The temperature deviation includes the difference between instantaneous component temperature and the set temperature, and the wherein power control circuit
Including for the time fall off rate of the temperature with reference to the device compared with fall off rate, and to be worked as the time of the temperature
When fall off rate is greater than the reference fall off rate, the power control circuit is in heating element described in enhancement mode operation
All it is higher than the power level of first power level in all temperature deviations, the time until detecting the temperature declines
Rate is less than described be in reference to fall off rate or the temp of heating element and corresponds to setting for steady state power output
Determine temperature.
9. forming hair tool according to claim 8, wherein described to swash when the pawl is in the open position
Sensor living generates the second activation output and the power control circuit can operate, in the presence of the second activation output simultaneously
And it is grasped after the power level operation lower than the steady state power level in enhancement mode in the heating element
Make the heating element until that the power level of the heating element is again equal to the steady state power is horizontal, or until visiting
Abnormal heat load is measured to occur again.
10. there is heating element, temperature to pass for a kind of method in forming hair tool control power, the forming hair tool
Sensor, pairs of pawl and activation sensor, the temperature on the adjacent heating element surface of the temperature sensor senses heating element,
The heating element is arranged in one of them of the pawl, and the pawl is connected to transport between the open and the closed positions
It is dynamic, in the open position, can remove or be inserted into hair between the pawl, in the closed position, the pawl it is another
A to squeeze the hair towards the heating element, when pawl described in the activation sensor sensing is in the closed position
And generate the first activation output；It the described method comprises the following steps:
It operates the heating element and is in steady state power level；
When generation first, which activates, to be exported, regularly measures temperature and calculate the time fall off rate of temperature and will calculate
The time fall off rate of the temperature compared with set rate, and
When the time fall off rate of the temperature is less than the set rate, the power water for being applied to the heating element is reduced
It puts down to avoid the pyrolytic damage as caused by overheating.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK13111187 | 2013-09-30 | ||
| HK13111187.5 | 2013-09-30 | ||
| PCT/CN2013/089988 WO2015043094A1 (en) | 2013-09-30 | 2013-12-19 | Hair styling iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105764376A CN105764376A (en) | 2016-07-13 |
| CN105764376B true CN105764376B (en) | 2019-08-16 |
Family
ID=52741917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380081147.1A Active CN105764376B (en) | 2013-09-30 | 2013-12-19 | hair styling iron |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160213117A1 (en) |
| EP (1) | EP3051974B1 (en) |
| CN (1) | CN105764376B (en) |
| WO (1) | WO2015043094A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015071656A1 (en) * | 2013-11-12 | 2015-05-21 | Jemella Limited | Hair styling apparatus |
| PL3766375T3 (en) * | 2015-12-09 | 2022-05-30 | Spectrum Brands, Inc. | Temperature control system and method for hair styling apparatus |
| CN107467853A (en) * | 2017-09-25 | 2017-12-15 | 深圳市奋达科技股份有限公司 | A kind of sound wave heater of hair straightener |
| GB2569660B (en) * | 2017-12-22 | 2022-03-02 | Jemella Ltd | Thermal control apparatus and method |
| EP3524086A1 (en) * | 2018-02-09 | 2019-08-14 | Koninklijke Philips N.V. | Hair straightener |
| GB2574008B (en) * | 2018-05-21 | 2022-06-22 | The House Of Curls Ltd | Hair Styling Device |
| CN111781972B (en) * | 2020-06-24 | 2022-01-04 | 惠州拓邦电气技术有限公司 | Foot basin, and temperature control method and device of foot basin |
| GB2597683B (en) * | 2020-07-29 | 2022-11-23 | Dyson Technology Ltd | Hairstyling device |
| GB2615804A (en) * | 2022-02-21 | 2023-08-23 | Dyson Technology Ltd | A haircare appliance |
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| CN102131419A (en) * | 2008-08-04 | 2011-07-20 | 泰纳克塔集团股份公司 | Hair styling apparatus |
| GB2477834A (en) * | 2010-08-31 | 2011-08-17 | Jemella Ltd | Hair styling appliance with heating zones |
| EP2449911A1 (en) * | 2010-11-05 | 2012-05-09 | Seb S.A. | Hairdressing appliance with automatic control |
| EP2524617A2 (en) * | 2011-05-20 | 2012-11-21 | Rovcal, Inc. | Hair styling apparatus having hair-protection function |
| CN203152832U (en) * | 2013-01-29 | 2013-08-28 | 深圳市奋达电器有限公司 | Touch hairdressing device |
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| US4602143A (en) * | 1984-11-14 | 1986-07-22 | Clairol Incorporated | Infrared hair styling device |
| US5270520A (en) * | 1991-09-23 | 1993-12-14 | Helen Of Troy Corporation | Hair styling appliances and heater control circuits therefor |
| US5354967A (en) * | 1992-11-13 | 1994-10-11 | Helen Of Troy Corporation | Hair styling appliance heater and control |
| US5345055A (en) * | 1993-07-14 | 1994-09-06 | Conair Corporation | Fast heating curling iron and control circuit therefor |
| US5637931A (en) * | 1996-01-31 | 1997-06-10 | Lundar Electric Industrial Co., Ltd. | Safety apparatus for an electrical iron |
| GB2432310B (en) * | 2005-11-18 | 2011-02-16 | Jemella Ltd | Improvements in and relating to hair irons |
| US7356943B2 (en) * | 2006-05-17 | 2008-04-15 | Sabeeh Behbehani | Automatic hair dryer |
| ES2795355T3 (en) | 2009-07-10 | 2020-11-23 | Braun Gmbh | Automated hair care process |
| DE102011077117A1 (en) * | 2011-06-07 | 2012-12-13 | BSH Bosch und Siemens Hausgeräte GmbH | crimper |
| JP2014516742A (en) * | 2011-06-13 | 2014-07-17 | クールウェイ・インコーポレイテッド | Method and hair care tool for dynamic and optimal hair styling temperature control |
| GB2500733B (en) * | 2012-06-25 | 2014-05-21 | Jemella Ltd | Hair styling appliance |
| GB2555310B (en) * | 2012-12-03 | 2018-07-18 | Jemella Ltd | Hair styling apparatus |
-
2013
- 2013-12-19 CN CN201380081147.1A patent/CN105764376B/en active Active
- 2013-12-19 US US15/025,929 patent/US20160213117A1/en not_active Abandoned
- 2013-12-19 EP EP13894780.9A patent/EP3051974B1/en active Active
- 2013-12-19 WO PCT/CN2013/089988 patent/WO2015043094A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131419A (en) * | 2008-08-04 | 2011-07-20 | 泰纳克塔集团股份公司 | Hair styling apparatus |
| GB2477834A (en) * | 2010-08-31 | 2011-08-17 | Jemella Ltd | Hair styling appliance with heating zones |
| EP2449911A1 (en) * | 2010-11-05 | 2012-05-09 | Seb S.A. | Hairdressing appliance with automatic control |
| EP2524617A2 (en) * | 2011-05-20 | 2012-11-21 | Rovcal, Inc. | Hair styling apparatus having hair-protection function |
| CN203152832U (en) * | 2013-01-29 | 2013-08-28 | 深圳市奋达电器有限公司 | Touch hairdressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3051974B1 (en) | 2018-08-29 |
| US20160213117A1 (en) | 2016-07-28 |
| CN105764376A (en) | 2016-07-13 |
| EP3051974A4 (en) | 2017-07-19 |
| EP3051974A1 (en) | 2016-08-10 |
| WO2015043094A1 (en) | 2015-04-02 |
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