CN102423184A - Electric hair drier - Google Patents
Electric hair drier Download PDFInfo
- Publication number
- CN102423184A CN102423184A CN2011104021446A CN201110402144A CN102423184A CN 102423184 A CN102423184 A CN 102423184A CN 2011104021446 A CN2011104021446 A CN 2011104021446A CN 201110402144 A CN201110402144 A CN 201110402144A CN 102423184 A CN102423184 A CN 102423184A
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- fin
- heater element
- hair dryer
- heat exchanger
- ptc
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- Cleaning And Drying Hair (AREA)
Abstract
The invention discloses a hair drier, which comprises: the fan comprises a blowing motor, a heat exchanger and a heating element which are arranged in a shell, wherein the heating element is a PTC heating element, the heat exchanger comprises more than two cooling fins, a plurality of ventilation grooves which are vertical to the axis of the shell are formed in the cooling fins, and the ventilation grooves are uniformly distributed on the cooling fins. Through the mode, the invention uses the PTC heating element, so the invention has the advantages of small volume and large air quantity, simultaneously, the direct contact between the charged body and the air is not existed any more, the safe use of avoiding overtemperature and electric shock fire is really realized, simultaneously, the good effects of energy saving and electricity saving and safe heating of the PTC are fully exerted, and the invention has the advantages of high reliability, safe and convenient use, energy saving and electricity saving, and the like; due to the existence of the ventilation grooves additionally formed on the radiating fins, the radiating can be timely, quickly and fully realized by means of air convection.
Description
Technical field
The present invention relates to appliance field, particularly relate to the hair dryer of a kind of PTC of use heater element and modified fin.
Background technology
Hair dryer is as the compact electric apparatus of a kind of indispensability in the individual family life, and the life requirement of having followed people develops into various forms.The hair dryer fan heater generally requires rate of heat exchange fast, and the transmission air quantity is big.The existing market product adopts powerful resistance wire to make heater element basically the time; Its disadvantage is that heating area is little; And force its heating temp higher, and generally being higher than more than 650 degree, electrical body directly is exposed in the air and occurs easily getting an electric shock or fire incident.
Disclose a kind of ceramic membrane heater hair dryer of high electrothermal efficiency among the Chinese patent document number CN1444887, its technical scheme is: comprise body and handle two parts, be filled with heat-barrier material in the wall around the body; Body has an air inlet and air outlet, and electric fan is fixed in the body, near the air inlet place; Between electric fan and air outlet, be fixed with the electric heater that inside and outside wall is coated with the transparent conductive metal oxide ceramic membrane, handle is provided with power switch, external power supply input port, includes power line in the handle; The transparent conductive metal oxide ceramic membrane is deposited on the ceramic substrate surface of expense conduction; Conductive film is that the electrical heating power surface density of technology of heating unit is low, and the surface area that contacts with media is big, makes this heating unit fully to dispel the heat; But this hair dryer power consumption is bigger, and manufacturing cost is high.
The heater element of hair dryer is provided with heat abstractor more at present, through the cross-ventilation groove of offering between each fin, realizes the in good time heat radiation of fin, and then guarantees the operate as normal of heater element.But the direction of cross-ventilation groove is generally same direction; Be positioned at the fin of both end sides; Radiating effect is more better, and the effect of its ventilation and heat of fin in the middle of being positioned at is often unsatisfactory, only relies on cross-ventilated mode to dispel the heat; Radiating effect is inhomogeneous, still is necessary further improvement.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of hair dryer, can solve in the prior art, inhomogeneous, the insufficient deficiency of the heat dispersion of heat abstractor, simple and reasonable, cost of manufacture is low, safe and reliable, volume is little, energy consumption is low.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of hair dryer is provided; Comprise: be arranged on blowing motor, heat exchanger and heater element in the housing, said heater element adopts the PTC heater element, and said heat exchanger comprises the fin more than two; Offer on the said fin many with the perpendicular ventilation slot of the axis of housing, each ventilation slot is evenly distributed on the said fin.
In preferred embodiment of the present invention, said PTC heater element is the ceramic heating plate more than, and this PTC heater element in the form of sheets or bar-shaped is arranged on the central authorities of heat exchanger.
In preferred embodiment of the present invention, said heat exchanger comprises the fin more than two, and the PTC heater element is crimped between the adjacent fin.
In preferred embodiment of the present invention, said fin is made by Heat Conduction Material, radially distributes in the air channel of hair dryer.
In preferred embodiment of the present invention, said fin radially evenly outwards stretches from the axis of housing, and the exchange face of fin evenly distributes.
In preferred embodiment of the present invention, said fin is crimped on said PTC heater element through a pressing plate, and fixes through a bolt.
The invention has the beneficial effects as follows: the present invention has used the PTC heater element; So have the advantage that volume is little, air quantity is big; Simultaneously no longer exist electrical body directly to contact with air; Real realize exempting from the overtemperature degree and exempt from the safe in utilization of fire that get an electric shock, also given full play to the energy saving and the good effect that safety heats of PTC simultaneously, have advantages such as reliability height, safe in utilization and convenient, energy saving; Because the existence of the ventilation slot of offering in addition on the fin can rely on cross-ventilated mode to realize heat radiation in time, fast, fully.
Description of drawings
Fig. 1 is the main TV structure sketch map of hair dryer one preferred embodiment of the present invention;
Fig. 2 be shown in the left TV structure sketch map of hair dryer;
The mark of each parts is following in the accompanying drawing: 1, fin, 2, bolt, 3, pressing plate, 4, the PTC heater element, 5, ventilation slot.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1 and Fig. 2, the embodiment of the invention comprises:
A kind of hair dryer; Comprise: be arranged on blowing motor, heat exchanger and heater element in the housing; Said heater element adopts PTC (Positive Temperature Coefficient, positive temperature coefficient) heater element 4, and said heat exchanger comprises ten fin 1; Offer on the said fin 1 many with the perpendicular ventilation slot 5 of the axis of housing, each ventilation slot 5 is evenly distributed on the said fin 1.
Said heat exchanger comprises ten fin 1, forms the cross-ventilation groove between each fin 1, on said each fin 1, also offers in addition with said cross-ventilation groove and moves towards perpendicular ventilation slot 5.Saidly perpendicularly be meant that offer direction and cross-ventilation groove actual of ventilation slot 5 on fin 1 moves towards staggered, promptly each fin 1 no longer is the monoblock type fin, but discontinuous fin as shown in Figure 2, each port forms said ventilation slot 5 naturally.
Said ventilation slot 5 can offer many, and each ventilation slot 5 is evenly distributed on the fin 1, and each fracture is on straight line or ring and the unimpeded ventilation slot 5 that forms; Radiating effect is more better comparatively speaking; With fully, distribute heat apace, but obviously, ventilation slot 5 quantity can not be provided with too much; Otherwise will reduce the area of dissipation of fin self, influence radiating effect.
Said PTC heater element 4 comprises three ceramic heating plates, and this PTC heater element 4 in the form of sheets or bar-shaped is arranged on the central authorities of heat exchanger.The characteristics of PTC heater element 4 are; Resistance raises with temperature and descends when PTC temperature curie point is following, when temperature near or when arriving curie point, curie point 50 degree ~ 250 degree are looked semi-conductive material behavior and are fixed in the scope; Resistance is increased to suddenly near off state; But when temperature retrieval was to curie point, its course of work can repeat automatically, therefore was referred to as the PTC effect.From the household electrical appliance security standpoint relatively; PTC heater element 4 adopts high heat-conducting ceramic to make insulator; Its live part can not expose; Be directly exposed to respect to charged heating resistance wire in the housing of hair dryer, its protection against electric shock and dust protection combustibility greatly improve, and the PTC effect of the highest 250 degree plays the key effect of anti-fire to household electrical appliances.Therefore, security performance of the present invention is reliably with reliable.
Fin 1 is made by Heat Conduction Material, radially distributes in the air channel of hair dryer.Fin 1 radially evenly outwards stretches from the axis of housing, and the exchange face of fin 1 evenly distributes.PTC heater element 4 is crimped between the adjacent fin 1, and PTC heater element 4 is crimped on the central authorities of fin 1.Whole ten fin 1 are crimped on through pressing plate 3 together with three PTC heater elements 4, and fix through bolt 2.
PTC heater element 4 carries out heat conduction through fin 1, and heat is delivered in the air channel of hair dryer through fin 1, and it is conical that the air channel is.Air the process of the end motion from a large diameter end towards minor diameter, constantly quickens in conical air channel, reaches air and is heated and PTC heater element 4 homogeneous heating, reduces the local criticality effect of PTC heater element 4 in curie point simultaneously.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. hair dryer; It is characterized in that; Comprise: be arranged on blowing motor, heat exchanger and heater element in the housing, said heater element adopts the PTC heater element, and said heat exchanger comprises the fin more than two; Offer on the said fin many with the perpendicular ventilation slot of the axis of housing, each ventilation slot is evenly distributed on the said fin.
2. hair dryer according to claim 1 is characterized in that, said PTC heater element is the ceramic heating plate more than, and this PTC heater element in the form of sheets or bar-shaped is arranged on the central authorities of heat exchanger.
3. hair dryer according to claim 2 is characterized in that said heat exchanger comprises the fin more than two, and the PTC heater element is crimped between the adjacent fin.
4. hair dryer according to claim 3 is characterized in that said fin is made by Heat Conduction Material, radially distributes in the air channel of hair dryer.
5. hair dryer according to claim 4 is characterized in that, said fin radially evenly outwards stretches from the axis of housing, and the exchange face of fin evenly distributes.
6. hair dryer according to claim 5 is characterized in that, said fin is crimped on said PTC heater element through a pressing plate, and fixes through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104021446A CN102423184A (en) | 2011-12-07 | 2011-12-07 | Electric hair drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104021446A CN102423184A (en) | 2011-12-07 | 2011-12-07 | Electric hair drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102423184A true CN102423184A (en) | 2012-04-25 |
Family
ID=45957284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104021446A Pending CN102423184A (en) | 2011-12-07 | 2011-12-07 | Electric hair drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102423184A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020223957A1 (en) * | 2019-05-09 | 2020-11-12 | 李忠宪 | Electric heating device capable of emitting heat uniformly |
| US11168924B2 (en) | 2017-05-10 | 2021-11-09 | Dyson Technology Limited | Heater |
| US11589661B2 (en) | 2017-01-12 | 2023-02-28 | Dyson Technology Limited | Hand held appliance |
-
2011
- 2011-12-07 CN CN2011104021446A patent/CN102423184A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11589661B2 (en) | 2017-01-12 | 2023-02-28 | Dyson Technology Limited | Hand held appliance |
| US11712098B2 (en) | 2017-01-12 | 2023-08-01 | Dyson Technology Limited | Hand held appliance |
| US11168924B2 (en) | 2017-05-10 | 2021-11-09 | Dyson Technology Limited | Heater |
| WO2020223957A1 (en) * | 2019-05-09 | 2020-11-12 | 李忠宪 | Electric heating device capable of emitting heat uniformly |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |