CN101292806A - Electromagnetic induction heating type electric hair drier - Google Patents
Electromagnetic induction heating type electric hair drier Download PDFInfo
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- CN101292806A CN101292806A CNA2007100683056A CN200710068305A CN101292806A CN 101292806 A CN101292806 A CN 101292806A CN A2007100683056 A CNA2007100683056 A CN A2007100683056A CN 200710068305 A CN200710068305 A CN 200710068305A CN 101292806 A CN101292806 A CN 101292806A
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- electromagnetic induction
- induction heating
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Abstract
The invention discloses an electromagnetic induction heating electric hair dryer, pertaining to an airflow generation and heating device. The electrical-heating hair dryer in the prior art has problems and defects in the aspects of application environment, energy saving, safety, noise, comfort, etc. A heater of the hair dryer of the invention comprises an electromagnetic induction eddy-flow heating component served as a heat generation component, electromagnetic coils winding outside the heat generation component and an electronic control circuit that is electrically connected with the electromagnetic coils and positioned outside an airflow channel. As the electric hair dryer adopts the electromagnetic induction to heat air, compared with the hair dryer with electrical heating in the prior art, the heating efficiency of the hair dryer of the invention is greatly improved and the heated air can smoothly flow in the airflow channel, thus the power consumption and operating noise of the hair dryer are remarkably reduced; the flowing speed of the airflow and the temperature distribution at the outlet section of the electric hair dryer are more even and the hair dryer is safer and more comfortable and can save more electricity when in use.
Description
Technical field
The invention belongs to a kind of air-flow and take place and heater, be meant a kind of hair dryer that adopts the electromagnetic induction heating mode that the air-flow that flows through is heated especially.
Background technology
Existing hair dryer 1A is the hair dryer that adopts the mode of resistance heating that the air that flows through it is heated as shown in Figure 3, and it comprises:
One main casing 10A, this main casing 10A have an air intake 12A and an air outlet slit 11A;
One fan 2A, it is arranged between described main casing the 10A interior described air intake 12A and described air outlet slit 11A;
One gas channel 60A is positioned at the downstream of described fan 2A, and it extends towards described air outlet slit 11A in described main casing 10A;
One is arranged on the electric heater 3A in the gas channel 60A, and this electric heater 3A is wrapped in the center bearing bracket 31A that mica sheet makes by a resistance wire 4A with spiral form and goes up and form.
The hair dryer of said structure, owing to adopt the mode of resistance heating that the air that flows through it is heated, for safe in utilization, requiring the air by gas channel 60A is dry air, so this kind constructed products should not bring in the environment of humidity such as bathroom and uses.
And, because area of space and surface area that mica sheet support 31A occupies are bigger, and mica sheet is again a heat guard, therefore, mica sheet support 31A both can make the air turbulization that flows through it, can not give contact its air transmitted heat again, simultaneously, the resistive heater 4A of heat can be provided to air, the area of space that it is occupied and the surface area of ingress of air thereof are but very limited, therefore the air by hair dryer gas channel 60A has considerable part not contact with resistive heater 4A, can not obtain the heat of resistive heater 4A conduction and radiation, this just causes the hair dryer 1A of prior art to face a kind of awkward situation, promptly, the air that flows through hair dryer on the one hand can not obtain more comprehensive, heating fully, resistive heater can not outwards transmit and distribute heat again in time on the other hand, consequently: make that the hair dryer ubiquity efficiency of heating surface of prior art is low, consumed power is big, hair dryer exit flow temperature, VELOCITY DISTRIBUTION is very inhomogeneous, running noises is big, the local electrical resistance silk is not because heat radiation freely occurs rubescent, phenomenon such as blow, thereby the user who makes hair dryer is energy-conservation, safety, noise, aspect such as comfortable all is unsatisfied with the prior art hair dryer, requires to be improved.
Summary of the invention
In view of the foregoing, the technical assignment of the technical problem to be solved in the present invention and proposition is to overcome problem and the defective that prior art electrical heating type hair dryer exists at environment for use, energy-conservation, safety, noise, aspect such as comfortable, a kind of brand-new electromagnetic induction heating type electric hair drier is provided, and adopts following technical scheme:
Electromagnetic induction heating type electric hair drier comprises:
Main casing, it has an air flow inlet, an air stream outlet, and has a handle housing;
Fan is arranged between the described air flow inlet and air stream outlet in the described main casing;
Gas channel, it extends towards described air stream outlet in described main casing;
Heater, its heat happening part is in described gas channel;
It is characterized in that: described heater comprises that described electronic control circuit is positioned at outside the described gas channel as the induction vortex heating spare of described heat generating unit, the solenoid that is wound on the described heat generating unit outside and the electronic control circuit that is electrically connected with described solenoid.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature, supplies to select for use according to actual conditions when concrete enforcement such scheme of the present invention:
At first effectively has high efficiency heater in order to form, be built-in with a tubulose partition wall at described gas channel, this tubulose partition wall is divided into first gas channel and second gas channel with described gas channel, described heat happening part is in first gas channel, and described solenoid is positioned at second gas channel.On this basis, described solenoid can be wound on the outer surface of tubulose partition wall; Also can be wound on the inner surface of main casing.And, on described main casing, offer the bypass air inlet that communicates with described second gas channel for to the solenoid cooling.Further in described main casing, be provided with the deflector that is positioned at described bypass air inlet upstream.
The gas channel of said structure form can provide two strands of air-flows with different temperatures from described air stream outlet.Be that described second gas channel is used as the gas channel that described solenoid provides refrigerating function, after the air-flow of cooling usefulness enters described main casing by described air flow inlet, directly spray by described air stream outlet by second gas channel.
And discharge from air stream outlet for the air-flow with different temperatures in first gas channel, second gas channel is mixed into one air-flow, can be provided with and the corresponding annular retaining ring of described second gas channel at described air flow outlet.In other words, described second gas channel is used as the gas channel that described solenoid provides refrigerating function, after cooling blast enters described main casing by described air flow inlet, import first gas channel earlier by second gas channel, the described air stream outlet from hair dryer sprays again.
Further, in order to make the heat generating unit air-flow in first gas channel, second gas channel is carried out in various degree heating, can also make the justify align of described heat generating unit and described tubulose partition wall, the heat of heat generating unit is isolated fully by the tubulose partition wall substantially and is mainly used in air-flow heating in first gas channel at this moment, is beneficial to the air-flow that forms two bursts of different temperatures at air stream outlet; Perhaps make the two ends of described heat generating unit stretch out outside the two ends of described tubulose partition wall, this moment, the heat of heat generating unit can not be isolated fully by the tubulose partition wall, it was used for air-flow heating time in first gas channel, its two ends in addition can be directly to the heating of the air-flow in second gas channel, be beneficial to the air-flow that is mixed into one uniform temp at air stream outlet.
In order to prevent air turbulence, described heat generating unit is served as reasons and is ridden in the tube wall shape structure along described gas channel extension of the stent support on the main casing.Realize thus also air-flow being led when the heat generating unit heats air-flow.On this basis, the heat generating unit of tube wall shape structure is the cannula-like structure, and the heat generating unit of cannula-like structure can be step-like layout.
Described heat generating unit is made by permeability magnetic material such as iron sheet.
In order to be beneficial to heat transfer, there are coating such as copper foil layer in the surface of described heat generating unit.Support is positioned at the part of described first gas channel and makes with Heat Conduction Material such as copper, aluminium etc.
As the another kind of version of heater, described solenoid can also be wound on the outer surface of main casing.
And in order to avoid the influence of high temperature, can be arranged in described electronic control circuit in the described handle housing or be placed on the special-purpose pedestal in fuselage outside.
Described tubulose partition wall is made with saturating magnetic insulation material such as mica.Heat that so can the block heat generating unit outwards transmits.
Described handle housing and main casing are integral structure, and the upper end of this handle housing is uncovered in main casing.Make and the part air that enters described main casing from described air intake flow through earlier from uncovered position, the upper end of this handle housing, flow into again in described first gas channel.
Described handle housing and main casing are split-type structural.As being connected on the main casing, be convenient to folding carrying by rotating shaft.
Heater of the present invention is when hair dryer is worked, produce magnetic field by solenoid, then induced field generation electromagnetic eddy heating of induction vortex heating spare as the heat generating unit, with heat conduction and radiation to air-flow by gas channel, the heat generating unit of this heater is not charged, (in the bathroom after taking a shower) safe handling in a humid environment, it is basic design with the electromagnetic induction heating, reaches following beneficial effect:
1, suitable environment is wide, and security performance is strong;
2, since induction vortex heating spare to the efficiency of heating surface of air-flow much larger than the efficiency of heating surface of resistive heater to air-flow, thereby can significantly reduce the power consumption of hair dryer, reach remarkable energy saving effect.
3, can play rectified action owing to be arranged on the eddy-current heating spare and the support thereof of the coaxial cylindrical tubular type in first gas channel to the air-flow that flows through it, and the micarex support and the winding resistive heater thereon thereof that are arranged on the prior art hair dryer in the said flow passage equally play obstruction and flow-disturbing effect to the air-flow that flows through it.Therefore, adopt the hair dryer of the technology of the present invention, the flow velocity and the Temperature Distribution of its outlet air-flow are more even, and it is softer to dry, and because air-flow is mobile smooth-going in gas channel, the noise of hair dryer can obviously reduce.
4, adopt the hair dryer of the technology of the present invention, when thoroughly having avoided the resistive heater of prior art hair dryer regular meeting take place the local electrical resistance silk overheated rubescent, potential safety hazard such as blow, thereby use safer.
5, for above-mentioned reasons, use hair dryer of the present invention, it is safer that the user is experienced, more energy-conservation, more comfortable service.
Description of drawings
Figure 1A is the side direction generalized section of first embodiment of the invention hair dryer.
Figure 1B is the gas channel and the inner cross section structure schematic diagram thereof of the hair dryer of structure shown in Figure 1A.
Fig. 2 is the side direction generalized section of second embodiment of the invention hair dryer.
Fig. 3 is the side generalized section of prior art hair dryer.
The specific embodiment
Following with reference to accompanying drawing, the mode of electromagnetic induction heating hair dryer of the present invention with preferred embodiment further elaborated:
Embodiment one
Shown in Figure 1A and Figure 1B, the hair dryer 1 of present embodiment mainly comprises cannulated main casing 10, the one end has air flow inlet 12, its relative other end has air stream outlet 11, handle housing 13 with switch 6 extends out downwards and is connected as a single entity with hollow main casing 10 from hollow main casing 10, and the upper end 90 of handle housing 13 is an open face.
In main casing 10, fan 2 is arranged between air flow inlet 12 and the air stream outlet 11, and define a pair of first gas channel 60 and second gas channel 70, this first gas channel 60 and second gas channel 70 extend towards air stream outlet 11, and by a tubulose partition wall 50 with first gas channel 60 and second gas channel, 70 separate coming.In the present embodiment, the cylindrical tube that this tubulose partition wall 50 is made by mica sheet forms, and it is arranged in the main casing 10, and axially closely twines multiturn solenoid 4 with the circular section lead along it on its outer surface.
In the present embodiment, the method that air-flow in the main casing 10 that enters hair dryer 1 is heated is the electromagnetic induction heating method, its corresponding heater is by being arranged on the induction vortex heating spare as heat generating unit 3 in first gas channel 60, being wrapped in the solenoid 4 on tubulose partition wall 50 outer surfaces that magnetic insulation material mica does, and the electronic control circuit 30 that is electrically connected with this solenoid 4 that is arranged in the handle housing 13 forms, and the operating mode of whole heating system is controlled by the shift knob 6 that is arranged on the handle housing 13.
In the present embodiment, the heat generating unit 3 that is arranged in first gas channel 60 is two coaxial cylindrical light-wall pipes, it is connected as structure with the inwall of main casing 10 by radially-arranged thin slice support 31, therefore, the air-flow in its convection current passing through fan 2 downstream has good rectified action, and, because the cylinder-shaped thin wall pipe of this heat generating unit 3 is to make of the magnetic material iron sheet of eddy-current heating characteristic good, its overlay coating and its support are again with the good copper of heat conductivility, materials such as aluminium form, thereby can heat up heating and fast and effeciently heat conduction and radiation are given the air-flow of first gas channel 60 that passes through main casing 10 rapidly.In addition, the upper end 90 of flowing through handle housing 13 is uncovered, and high performance components in the electronic control circuit 30 40 is carried out cooled gas flow, also imports under the guiding of flow deflector 41 in first gas channel 60.Therefore first gas channel 60 of present embodiment hair dryer 1 be used for air stream outlet 11 for hair dryer 1 provide flow smooth-going, noise is low, the thermal current of cross section flow velocity and uniformity of temperature profile.
Simultaneously, consider that the solenoid 4 in the electromagnetic induction heating system also has the necessity that needs cooling in the course of the work, present embodiment is entered the part cold airflow of main casing 10 by the air flow inlet 12 of hair dryer 1, and the cold airflow that enters main casing 10 from the bypass air inlet 80 that is opened in flow deflector 41 tight downstream parts on the main casing 10, flow through second gas channel 70 earlier, the air stream outlet 11 from hair dryer 1 sprays again.
In the present embodiment, from first gas channel 60 with go out the air-flow of stream from second gas channel 70, be separately directly from the centre of the air stream outlet 11 of hair dryer 1 and the ejection of peripheral position, thereby can obtain the coaxial air-flow with two bursts of different temperatures of layering at air stream outlet 11 places.
Embodiment two
Except following feature, the hair dryer of this embodiment hair dryer with embodiment one basically is identical.Therefore, omitted the explanation that repeats.
In the present embodiment, as shown in Figure 2, likening to as the cylinder-shaped thin wall pipes of heat generating unit 3 in first gas channel 60 is that the tubulose partition wall 50 of partition wall of first gas channel 60 and second gas channel 70 extends near the air stream outlet 11 of hair dryer 1 more, but also on air stream outlet 11 cross sections, added annular retaining ring 110, prevention directly sprays air stream outlet 11 from the air-flow that second gas channel 70 comes out, carried out after cooled gas flow comes out from second gas channel 70 thereby make by 70 pairs of solenoids of second gas channel 4, import earlier in first gas channel 60, the air stream outlet 11 from hair dryer 1 sprays again.Thus, in the present embodiment, what obtain from air stream outlet 11 is through two strands of mixed one thermal currents of different temperatures air-flow.
Need to prove; above-mentioned two embodiment are only used for illustrating two representative examples of the present invention; do not represent it is limiting the scope of the invention; on the basis of these two embodiment; technology enlightenment in conjunction with basic design of the present invention and summary of the invention of the present invention part; when reality is implemented technical scheme of the present invention, can selectively select for use or give up the corresponding techniques feature, do not repeat them here.
Claims (20)
1, electromagnetic induction heating type electric hair drier comprises:
Main casing (10), it has an air flow inlet (12), an air stream outlet (11), and has a handle housing (13);
Fan (2) is arranged between the described air flow inlet (12) and air stream outlet (11) in the described main casing (10);
Gas channel, it extends towards described air stream outlet (11) in described main casing (10);
Heater, its heat generating unit (3) is positioned at described gas channel;
It is characterized in that: described heater comprises that described electronic control circuit (30) is positioned at outside the described gas channel as the induction vortex heating spare of described heat generating unit (3), the solenoid (4) that is wound on described heat generating unit (3) outside and the electronic control circuit (30) that is electrically connected with described solenoid (4).
2, electromagnetic induction heating type electric hair drier according to claim 1, it is characterized in that: described gas channel is built-in with a tubulose partition wall (50), this tubulose partition wall (50) is divided into first gas channel (60) and second gas channel (70) with described gas channel, described heat generating unit (3) is positioned at first gas channel (60), and described solenoid (4) is positioned at second gas channel (70).
3, electromagnetic induction heating type electric hair drier according to claim 2 is characterized in that: described solenoid (4) is wound on the outer surface of tubulose partition wall (50).
4, electromagnetic induction heating type electric hair drier according to claim 2 is characterized in that: described solenoid (4) is wound on the inner surface of main casing (10).
5, electromagnetic induction heating type electric hair drier according to claim 2 is characterized in that: offer the bypass air inlet (80) that communicates with described second gas channel (70) on the described main casing (10).
6, electromagnetic induction heating type electric hair drier according to claim 5 is characterized in that: be provided with the deflector (41) that is positioned at described bypass air inlet (80) upstream in the described main casing (10).
7, according to the described electromagnetic induction heating type electric hair drier of 2～6 arbitrary claims, it is characterized in that: described air stream outlet (11) locates to be provided with the annular retaining ring (110) corresponding with described second gas channel (70).
8, according to the described electromagnetic induction heating type electric hair drier of 2～6 arbitrary claims, it is characterized in that: the justify align of described heat generating unit (3) and described tubulose partition wall (50).
9, according to the described electromagnetic induction heating type electric hair drier of 2～6 arbitrary claims, it is characterized in that: stretch out outside the two ends of described tubulose partition wall (50) at the two ends of described heat generating unit (3).
10, according to the described electromagnetic induction heating type electric hair drier of 1～6 arbitrary claim, it is characterized in that: described heat generating unit (3) is served as reasons and is ridden in the tube wall shape structure along described gas channel extension that the support (31) on the main casing (10) supports.
11, electromagnetic induction heating type electric hair drier according to claim 10 is characterized in that: the heat generating unit (3) of described tube wall shape structure is the cannula-like structure.
12, electromagnetic induction heating type electric hair drier according to claim 11 is characterized in that: the heat generating unit of described cannula-like structure (3) is step-like layout.
13, electromagnetic induction heating type electric hair drier according to claim 10 is characterized in that: described heat generating unit (3) is made by permeability magnetic material.
14, electromagnetic induction heating type electric hair drier according to claim 13 is characterized in that: there is heat conduction coating on the surface of described heat generating unit (3).
15, electromagnetic induction heating type electric hair drier according to claim 10 is characterized in that: described support (31) is positioned at the part of described first gas channel (60) and makes with Heat Conduction Material.
16, electromagnetic induction heating type electric hair drier according to claim 1 is characterized in that: described solenoid (4) is wound on the outer surface of main casing (10).
17, electromagnetic induction heating type electric hair drier according to claim 1 is characterized in that: described electronic control circuit (30) is arranged in the described handle housing (13) or is placed on the special-purpose pedestal in fuselage outside.
18, electromagnetic induction heating type electric hair drier according to claim 1 is characterized in that: described tubulose partition wall (50) is made with saturating magnetic insulation material.
19, electromagnetic induction heating type electric hair drier according to claim 1 is characterized in that: described handle housing (13) is an integral structure with main casing (10), and its upper end (90) are uncovered in main casing (10).
20, electromagnetic induction heating type electric hair drier according to claim 1 is characterized in that: described handle housing (13) is a split-type structural with main casing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100683056A CN101292806B (en) | 2007-04-23 | 2007-04-23 | Electromagnetic induction heating type electric hair drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100683056A CN101292806B (en) | 2007-04-23 | 2007-04-23 | Electromagnetic induction heating type electric hair drier |
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| CN101292806A true CN101292806A (en) | 2008-10-29 |
| CN101292806B CN101292806B (en) | 2010-10-06 |
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| CN2007100683056A Expired - Fee Related CN101292806B (en) | 2007-04-23 | 2007-04-23 | Electromagnetic induction heating type electric hair drier |
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