CN104118299A - Electric heater, defroster, air-conditioning heating system and automobile - Google Patents
Electric heater, defroster, air-conditioning heating system and automobile Download PDFInfo
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- CN104118299A CN104118299A CN201310155520.5A CN201310155520A CN104118299A CN 104118299 A CN104118299 A CN 104118299A CN 201310155520 A CN201310155520 A CN 201310155520A CN 104118299 A CN104118299 A CN 104118299A
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Abstract
The invention provides an electric heater, a defroster, an air-conditioning heating system and an automobile. The electric heater comprises a frame and a heater body component in the frame, wherein the heater body component comprises a plurality of heat dissipation bars and a plurality of heating elements, and the heat dissipation bars and the heating elements are arranged side by side at intervals. Each heating element comprises a core tube and a PTC thermistor installed in the core tube, heat conducting silica gel is arranged between each core tube and the adjacent heat dissipation bars, and the core tube and the adjacent heat dissipation bars are bonded through the heat conducting silica gel. The end, used for being connected with a current, of the heater body component is wrapped by a sealing waterproof rubber frame, and the sealing waterproof rubber frame is located in the frame. The waterproof performance can reach the IPX 7 level, and the comprehensive performance such as high voltage resistance and vibration performance is still high.
Description
Technical field
The present invention relates to electric automobile air-conditioning system heating field, more particularly, relate to a kind of electric heater, defogger, air conditioning and heating system and automobile.
Background technology
In fuel-engined vehicle, winter, defrosting and the heating of automobile were to adopt independent thermal source formula (fuel oil) heating system or residual heat type (utilizing engine cooling water or waste gas residual heat) heating system.These two kinds of automobile heating service systems all need to depend on the driving engine of automobile, that is to say will be under the state of engine operation, could implement defrosting, demist and heating in automobile, once engine stop work, defrosting, demist and heating also just cannot realize.In addition, the heating efficiency of this heating system is very low, its structure is also comparatively complicated, in the time of in the winter time, after start the engine, need the heat supply of 6-10 minute ability, especially defrosting, could heat supply after shield glass completes defrosting and needs time of one section of engine operation, this not only wastes fuel oil, also affects safe driving.
In recent years, due to requirement energy-conservation and that reduce discharging, electronlmobil and hybrid electric vehicle become the developing direction of automotive field.Hybrid electric vehicle also can need defrosting, demist and heating to stall time, pure electric vehicle is owing to there is no driving engine, can not take traditional approach defrosting, demist and heating, and the battery reserve of electricity of current battery-driven car is few, with its electric discharge heating, can consume too much electric weight, shorten its travelled distance.Thereby the heating system of making applicable electronlmobil and hybrid electric vehicle use becomes those skilled in the art's research topic.
PTC electric heater utilizes the characteristic of heated at constant temperature PTC thermally dependent resistor, in middle low power heating occasion, PTC electrical heated appliance have constant temp. warming, the flames of anger, thermal conversion rate high, be subject to power line voltage to affect the incomparable advantages of traditional heat element such as minimum, natural life-span is long, in electro heat air conditioning for automobiles heating defrosting mode, obtain more application, such as e6, K9, Leaf, Volt, i-MiEV, PRIUS etc., it has become a kind of electronlmobil heating system relatively preferably in this field at present.But complicated in electronlmobil field PTC electric heater environment for use, require service life more than 10 years, operating voltage is also higher, and for example the general rated operational voltage scope of BYD electronlmobil is at 320V ~ 540V, under some limiting case, vehicle voltage is even more than 600V.In order to guarantee that electronlmobil can not cause electric shock unexpected injury to Che Nei or periphery personnel paddling, meet the flood air-cooled ptc heater of extreme environment such as immersed, the development requires of the air-cooled PTC electric heater of waterproof type is suggested, and draws attention.The PTC air-cooled heater classification of waterproof that electronlmobil is used requires to reach IPX7.
The electric heater of existing a kind of applicable electronlmobil or hybrid vehicle defrosting and heating, comprise: with the suitable framework of air outlet of automobile air-conditioning system, in framework, be arranged with a plurality of aluminium heat sink strips, a plurality of PTC(Positive Temperature Coefficient with flat shell, positive temperature coefficient) electric heating tube is clamped between each aluminium heat sink strip, described aluminium heat sink strip is connected and fixed with the mode of soldering or encapsulating and the housing of PTC electric heating tube, this electric heater can meet the operating needs of electronlmobil or hybrid vehicle, safe and reliable, heating efficiency is high, can effectively save electric weight.But because PTC electric heating tube and aluminium heat sink strip are that mode with soldering is connected and fixed, there is the problems such as rosin joint, not prison welding, can not adapt to automobile uses for a long time under the road conditions of jolting, and, but PTC electric heating tube can not form good contacting with aluminium heat sink strip, heat conductivility between PTC electric heating tube and aluminium heat sink strip is poor, and the radiating effect of aluminium heat sink strip is poor., and the safety performance of existing electric heater is poor, surface charging, there is serious potential safety hazard, use voltage also lower, voltage is general≤220VAC, can not meet high-tension operating needs, particularly water resistance is poor, and waterproof rank is less than IP5, under moist environment, easily aging, product life is generally about 3 years, safety performance is low, under more than 80% humidity, electric heater surface can be charged, serious threat chaufeur and passenger's safety performance.Also have PTC thermally dependent resistor is arranged in core pipe, then core pipe and aluminium heat sink strip are arranged in and in framework, form electric heater, wherein, at the two ends of core pipe filling gel and be covered with insulation shell, within the live partss such as PTC element are sealed in to core pipe completely, not can with water, the contacts such as dust, improve the safety performance of electric heater, but the metal terminal of its electric heater or exposed in air, easily electric leakage and short circuit under moist environment, safety cannot guarantee, and electric automobile air-conditioning system operating voltage is higher, easier fault under moist environment, cause security threat to passenger and chaufeur, its water resistance is only below IPX4, do not reach desirable requirement yet, simultaneously owing to improving its water-proofness, its Combination property is resistance to puncturing for example, the performances such as withstand voltage but have reduction.
Summary of the invention
The present invention does not reach desirable requirement in order to solve the water resistance of existing electric heater, but the Combination property of product has the technical matters of reduction, provide a kind of water resistance can reach IPX7 level, and Combination property such as high voltage withstanding performance, vibration performance etc. still preferably electric heater, defogger, air conditioning and heating system and automobile.
First object of the present invention is to provide a kind of electric heater, and this electric heater comprises: the main element in framework and framework, and described main element comprises have some heat sink strips and some heat elements placed side by side, described heat sink strip and heat element interval arrange; Described heat element comprises core pipe and is installed on the PTC thermally dependent resistor in core pipe; Between described core pipe and adjacent heat sink strip, be provided with heat conductive silica gel, described core pipe and described heat sink strip are bonding by described heat conductive silica gel; Described main element is coated with water-tight glue frame for connecting the end of electric current, and described water proof glue frame is positioned at framework.
Preferably, main element is provided with lead-out tablet for connecting the end of electric current, described core pipe contains the conducting strip being electrically connected to PTC thermally dependent resistor, and described conducting strip extends knockout pipe and is electrically connected to lead-out tablet, and part and lead-out tablet that described conducting strip extends knockout pipe are arranged in described water-tight glue frame.
Preferably, the both ends of main element are coated with water-tight glue frame.
Preferably, a side of main element is also provided with protective core pipe, and the end surface of main element is coated with water-tight glue.
Preferably, core pipe is aluminium siphunculus, and core pipe comprises two heat radiation walls and two stressed walls, and described two heat radiation walls are relative with adjacent heat sink strip, and the thickness of described heat radiation wall and stressed wall is different.
Preferably, the thickness of heat radiation wall is greater than the thickness of stressed wall.
Preferably, the thickness of heat radiation wall is 1.0-1.4mm; The thickness of stressed wall is 0.6-1.0mm.
Preferably, core pipe comprises two heat radiation walls and two stressed walls, described two heat radiation walls are relative with adjacent heat sink strip, described stressed wall has to the concave arc of core pipe inner recess, further guarantees the filling of water-tight glue, is particularly applied in structure of the present invention, easier in encapsulating process, core pipe is not crooked, and structure is more stable, has further guaranteed the water resistance of electric heater.
Preferably, water-tight glue is that heat resisting temperature is more than or equal to the silica gel that 280 ℃, coefficient of thermal conductivity are more than or equal to 1.4 W/ (mK).
Preferably, between core pipe and PTC thermally dependent resistor, be provided with insulating material, described insulating material is ceramic wafer.
Preferably, heat sink strip comprises two connecting straps and is located at the radiating gill between two connecting straps, and described radiating gill is for being undulatory aluminium flake.
Preferably, between two adjacent heat elements, be provided with at least one heat sink strip, and be provided with at least two heat sink strips between outermost heat element and framework.
Preferably, main element also comprises the low voltage control component that is positioned at main element one side, and described low voltage control component is between outermost heat sink strip and framework.
Preferably, low voltage control component comprises temperature sensor, and described temperature sensor is riveted on outermost heat sink strip.
Second object of the present invention is to provide a kind of defogger, and this defogger comprises defogger housing, is positioned at blowing engine, the heating arrangement of defogger housing, and is positioned at the air outlet of defroster housing surface; The surface of described blowing engine comprises blast hole, and the wind in described blowing engine blows out by blast hole; The wind that described blast hole blows out is to a side surface of heating arrangement, and another the relative side surface by heating arrangement dispels the heat afterwards, in air outlet, sheds; Described heating arrangement is above-mentioned electric heater.
Preferably, defogger also comprises air channel, and described air channel is between blast hole and heating arrangement, and the wind that described blast hole blows out blows to a side surface of heating arrangement by air channel, and another the relative side surface by heating arrangement dispels the heat afterwards, in air outlet, sheds.
Preferably, air channel comprises air channel housing, and described air channel housing comprises upper shell, left shell, lower house and the right shell body of sealing-in between two, and described left shell and right shell body are respectively to air channel inner inclination.
Preferably, the angle of left shell and vertical surface is 10 °-34 °; The angle of described right shell body and vertical surface is 10 °-34 °.
Preferably, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described upper shell and lower house are downward-sloping respectively.
Preferably, the angle of upper shell and horizontal surface is 0 °-10 °; The angle of described lower house and horizontal surface is 40 °-52 °.
Preferably, be provided with fan sheet in air channel, described fan sheet and be provided with between the surface of blowing engine of blast hole and have angle, can change the wind direction of the wind that blast hole blows out.
Preferably, blast hole lays respectively at the both sides on blowing engine one surface, and described fan sheet comprises some left flat-fans and some right flat-fans, and described left flat-fan and right flat-fan are centroclinal to air channel respectively.
Preferably, the angle of left flat-fan and vertical surface is 30 °-45 °; The angle of described right flat-fan and vertical surface is 30 °-45 °.
Preferably, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described fan sheet comprises some upper fan sheets and some lower fan sheets, and described upper fan sheet and lower fan sheet are downward-sloping respectively.
Preferably, the angle of upper fan sheet and horizontal surface is 10 °-50 °; The angle of described lower fan sheet and horizontal surface is 10 °-50 °.
Preferably, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described air channel comprises air channel housing; Described fan sheet comprises some left flat-fans and some right flat-fans, and described left flat-fan and right flat-fan are centroclinal to air channel respectively; Described fan sheet comprises some upper fan sheets and some lower fan sheets, and described upper fan sheet and lower fan sheet are downward-sloping respectively; The both ends, left and right of described upper fan sheet, lower fan sheet are connected with air channel housing respectively; The both ends up and down of described left flat-fan, right flat-fan are connected with air channel housing respectively; Described upper fan sheet, lower fan sheet are connected with the rearward end of the close blast hole of left flat-fan, right flat-fan respectively away from the leading section of blast hole.
The 3rd object of the present invention is to provide a kind of air conditioning and heating system, and wherein, air conditioning and heating system comprises above-mentioned electric heater.
The 4th object of the present invention is to provide a kind of automobile, wherein, electric heater is installed in automobile, and described electric heater is above-mentioned electric heater.
The structure of electric heater of the present invention is unique, end integral coating water-tight glue frame at the main element of electric heater, high voltage component particularly conducting strip, lead-out tablet, wire etc. is sealed in water-tight glue frame completely, the water resistance of whole electric heater is excellent, even electric heater is immersed in water, safety performance also can be protected.Preferably, the both ends surface coverage of main element has water-tight glue, by water-tight glue, the whole end of main element is all filled and is coated, make water-tight glue frame and main element etc. form an an organic whole, not only further improve its water resistance, and the switching performance of raising main element, improve its shockproof properties etc.Preferably, the core pipe of unique texture, is not only further beneficial to the waterproof of electric heater, and is conducive to the preparation of electric heater and the heat transfer of PTC thermally dependent resistor.The Combination property of electric heater prepared by the present invention such as resistance toly puncturing, high voltage performance, anti-vibration performance etc. be also all greatly increased.It is mainly used in electronlmobil defrosting or heating, and safety performance is high, long service life, and save the energy, extended the course continuation mileage of battery-driven car.Its preparation is simultaneously simple, easily large-scale application.
Accompanying drawing explanation
Fig. 1 is the structural representation that water-tight glue frame is not poured in the main element end of one embodiment of the present invention.
Fig. 2 is the cross-sectional view of the main element end perfusion water-tight glue frame of one embodiment of the present invention.
Fig. 3 is the cross-sectional view of the main element end perfusion water-tight glue frame of one embodiment of the present invention.
Fig. 4 is the perspective view of the main element end perfusion water-tight glue frame of one embodiment of the present invention.
Fig. 5 is the local structure for amplifying schematic diagram of the main element end perfusion water-tight glue frame of one embodiment of the present invention.
Fig. 6 is the cross-sectional view of core pipe of the electric heater of one embodiment of the present invention.
Fig. 7 is the structural representation of the electric heater of one embodiment of the present invention.
Fig. 8 is the perspective view of the electric heater of one embodiment of the present invention.
Fig. 9 is the structural representation of the defogger of one embodiment of the present invention.
Figure 10 is the structural representation in air channel in the defogger of one embodiment of the present invention.
The specific embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The relative azimuth terms such as upper and lower, left and right of the present invention, represent electric heater, the relative position relation of each member of defogger in diagram, so that electric heater, defogger are described, but and the installation relation at electric heater, defogger to these members that is not used in limit.
Consult Fig. 7,8 and the invention provides a kind of electric heater, this electric heater comprises: the main element in framework 8 and framework 8.Wherein, the main element in framework can contain one and also can contain a plurality ofly etc., and also not restriction of relation is placed in the connection between main element.As accompanying drawing 1-5, wherein, main element comprises have some heat sink strips 3 and some heat elements 2 placed side by side, and described heat sink strip 3 arranges with heat element 2 intervals.
Wherein, framework 8 can comprise four frames that are positioned at main element four limits, after four frames are adopted to the combination of conventional fixed form, also can be for rectangular box body etc.The present invention such as the structure of framework 8, material are restriction not, can adopt conventional design, at this, is not repeating.
As shown in Figure 1, wherein, main element generally comprises for connecting the end of foreign current, conducting strip 5 in core pipe 21 generally from then on end extend, by being positioned at lead-out tablet 6 grades of end, be connected with foreign current, in a plurality of core pipes 21, extended conducting strip 5 generally collects on large lead-out tablet 6, then by conductor wire 7 grades that are connected with lead-out tablet 6, be connected with foreign current, conductor wire 7 generally passes from a side of framework 8, also can pass from many sides, the present invention is restriction not, according to actual conditions, design, for example, when the both ends of main element are equipped with lead-out tablet 6, can be connected with foreign current from two ends, can pass respectively from two body side frames 8 at the two ends of main element.
Main improvements of the present invention are that main element is coated with water-tight glue frame 1 for connecting the end of electric current, water-tight glue water-tight is set at the both ends of whole main element, water-tight glue frame 1 can be coated the two-end part of whole main element in framework 8, between the hole that end of core pipe 21 and the heat sink strip 3 placed side by side with core pipe 21 is connected with them, is all filled with water-tight glue.Preferably, main element is provided with lead-out tablet 6 for connecting the end of electric current, described core pipe 21 contains the conducting strip being electrically connected to 5 with PTC thermally dependent resistor 22, described conducting strip 5 extends knockout pipe 21 and is electrically connected to lead-out tablet 6, part and lead-out tablet 6 that described conducting strip 5 extends knockout pipe 21 are arranged in described water-tight glue frame 1, the conducting strip 5 that is electrically connected to PTC thermally dependent resistor 22 is all covered by this water-tight glue from the extended part of both ends open of core pipe 21 and lead-out tablet 6 etc. wherein, electrical connection can adopt conventional electrical connection, 6 of conducting strip 5 and lead-out tablets can also contain other conducting material etc., the present invention is restriction not.Wherein, main element can be connected with foreign current from an end, also can be connected with foreign current by both ends, can lead-out tablet 6 be set in an end of main element, also can lead-out tablet 6 be set at both ends, wherein, number the present invention of the lead-out tablet 6 of every end is not restriction also.For example, in the present embodiment, can be that two two strip shape lead-out tablet 6, two lead-out tablets 6 clampings perpendicular to main element end are from open-ended extended perpendicular some conducting strips 5 of core pipe 21, realize being electrically connected to of conducting strip 5 and lead-out tablet 6.
In better situation, preferably the both ends of main element are coated with water-tight glue frame 1, and core pipe 21 is sealed completely, and high voltage component is sealed in core pipe 21 completely, the water resistance of whole electric heater is excellent, even electric heater is immersed in water, safety performance also can be protected, and it is mainly used in electronlmobil defrosting or heating, safety performance is high, long service life, and save the energy, extended the course continuation mileage of battery-driven car.
Preferably, the end surface of main element is coated with water-tight glue, it can be the continuity of water-tight glue frame 1, also can apply separately, form an integral body with water-tight glue frame 1, by water-tight glue, the whole end of main element all filled and is coated, forming more excellent water-tight performance and the switching performance of main element, improving its shockproof properties etc.In better situation, even preferred, the afterbody of the wire 7 of drawing is also coated with water-tight glue, further improves its water resistance.
Shape the present invention of water-tight glue frame 1 is restriction not, design as required, can realize by the curing mode of mould filling etc., the mould that for example first design matches with main element end, main element is fixed in this mould, then filling water-tight glue, takes out after solidifying, and adopts the mode of molding to realize closely seamless coated.Material the present invention of water-tight glue frame 1 is preferably the silica gel through special processing, and special thermal treatment is for example preferably heat resisting temperature and is more than or equal to 280 ℃, coefficient of thermal conductivity and is more than or equal to the silica gel that 1.4 W/ (mK), cohesiveness are more than or equal to 4MPa.
Main improvements of the present invention are also, one side of main element is also provided with protective core pipe 9, be arranged side by side with outermost heat sink strip, be used for protecting and be fixed on the device on main element side, such as midget fuse and coolant-temperature switch etc., can be for a plurality of, in the present embodiment, be specially two, wherein, an end of a protective core pipe 9 is positioned at one end of main element, an end of another protective core pipe 9 is positioned at the other end of main element, two protective core pipes 9 are oppositely arranged, the preferred core pipe 21 of the preferred the present invention of its material and structure, the variable thickness sample and the stressed wall that are preferably aluminium siphunculus and four sidewalls have concave arc structure etc.
Wherein, heat element 2 comprises core pipe 21 and is installed on the PTC thermally dependent resistor 22 in core pipe 21.
Wherein, 21 the present invention of core pipe are preferably aluminium siphunculus, and PTC thermally dependent resistor 22 is installed in core pipe 21, and after PTC thermally dependent resistor 22 heating powers, heat first passes on core pipe 21, and then passes to heat sink strip 3 from core pipe 21, and rear wind is taken away heat radiation by heat.The present invention has the coated sealing of large stretch of water-tight glue at the both ends open place of aluminium siphunculus, guaranteed the water resistance of electric heater.Consult accompanying drawing 6, the second improvements of the present invention are also core pipe 21, and wherein, core pipe 21 comprises two the heat radiation walls 211 relative with heat sink strip 3 and two the other stressed walls 212 that are connected with described two heat radiation walls 211, the present invention is preferred, and heat radiation wall 211 is different with the thickness of stressed wall 212.Further preferably, the thickness of heat radiation wall 211 is greater than the thickness of stressed wall 212, and for example close contact of pottery of wall 211 and insulating material that is conducive to dispel the heat, is conducive to the heat transfer of PTC thermally dependent resistor 22.In better situation, preferably, the thickness of heat radiation wall 211 is 1.0-1.4mm; The thickness of stressed wall 212 is 0.6-1.0mm, and in the present embodiment, the thickness of concrete heat radiation wall 211 is 1.35mm, and the thickness of stressed wall 212 is 0.9mm.
Consult accompanying drawing 6, the 3rd improvements of the present invention are also the stressed wall 212 of core pipe 21, preferred stressed wall 212 has to the concave arc of core pipe 21 inner recess, further guarantee the filling of water-tight glue, particularly be applied in structure of the present invention, easier in encapsulating process, core pipe 21 is not crooked, structure is more stable, has further guaranteed the water resistance of electric heater.
Wherein, the height of core pipe 21 can design according to actual needs, and such as according to the size of the PTC thermally dependent resistor 22 of installing, structure etc., in the present embodiment, the outer height of concrete core pipe 21 is 9.2mm, and interior height is 6.5mm.
Generally, core pipe 21 is metallic material, according to the material of core pipe 21,22 of core pipe 21 and PTC thermally dependent resistors are provided with insulating material, preferably, insulating material is ceramic wafer, in better situation, concrete in the present embodiment is alumina ceramic plate 23, further optimizes the performance of electric heater, and the ceramic wafer of clamping has excellent insulating power, high coefficient of thermal conductivity and good heat-resisting quantity, the insulating power of electric heater have greatly been improved, possess water resistance, in a humid environment, the insulating power of electric heater are still secure.
Wherein, between core pipe 21 and adjacent heat sink strip 3, be provided with heat conductive silica gel, core pipe 21 with described heat sink strip 3 by the above-mentioned main element of the bonding composition of described heat conductive silica gel.Surperficial the present invention of core pipe 21 is restriction not, for example core pipe 21 also can have sandblast face for wall 211 surfaces of dispelling the heat, the surface being connected with heat sink strip 3, by blasting craft, form, before sand-blast finish, also can carry out alligatoring etc. to the surface of core pipe 21, by the surface of core pipe 21 being carried out to sandblast alligatoring, between the surface of core pipe 21 and heat sink strip 3, heat conductive silica gel is set, bond strength between core pipe 21 and heat sink strip 2 is good, is conducive to improve heat conductivility.
PTC thermally dependent resistor 22 can be selected PTC thermally dependent resistor 22 known in those skilled in the art, and the present invention requires to select the PTC thermally dependent resistor 22 that heating rate is fast, power is high, consumption of current is low.In general, described PTC thermally dependent resistor 22 comprises conducting base, PTC material and conductive electrode, described PTC material is positioned in the middle of two conducting bases and is attached on conducting base, described conductive electrode lays respectively on two conducting bases, and be connected to electrode terminal, described electrode terminal converges into wire harness, for external source.The thermally dependent resistor of PTC described in the present embodiment 22 is installed on and in core pipe 21, forms heat element 2, the inwall gapless of PTC thermally dependent resistor 22 and core pipe 21 coordinates, and at PTC thermally dependent resistor 22 and 21 clamping alumina ceramic plates 23 of core pipe, described alumina ceramic plate 23 has good insulating power and heat conductivility; Make PTC thermally dependent resistor 22 and 21 insulation of core pipe, and the heat that can make PTC thermally dependent resistor 22 produce can be transmitted to heat sink strip 3 by core pipe 21 effectively.
The heating rate of PTC thermally dependent resistor 22 is fast, and power is high, in order to make dissipating area large, also can between two adjacent heat elements 2, be provided with two heat sink strips 3, and between outermost heat element 2 and framework, be provided with two heat sink strips 3.It is worth mentioning that, in other embodiments of the invention, can also between two adjacent heat elements 2, arrange one, or three above heat sink strips 3, and arrange one between outermost heat element 2 and framework, or three above heat sink strips 3, specifically according to the radiating efficiency of the power of PTC thermally dependent resistor 22 and heat sink strip 3, arrange, preferably, one or two heat sink strips 3 are set between two adjacent heat elements 2, and two heat sink strips 3 are set between outermost heat element 2 and framework 8, so that PTC thermally dependent resistor 22 can conduct heat to heat sink strip 3 quickly, and distribute efficiently by heat sink strip 3.
In the present embodiment, heat sink strip 3 generally comprises two connecting straps 31 and is located at the radiating gill 32 between two connecting straps 31, described radiating gill 32 is for being undulatory radiating gill 32, described connecting strap 31 and radiating gill 32 are aluminium flake, for example: the aluminium flake of thick 0.8mm can be made to connecting strap 31, again the aluminium flake bending of rear 0.2mm is to corrugated, by soldering, radiating gill 32 is fixed between two connecting straps 31, form heat sink strip 3.The dissipating area of the heat sink strip 3 of this material and shape is larger, and radiating efficiency is better.Heat sink strip 3 also can be formed with sandblast face for the surface of the connecting strap 31 that is connected with core pipe 21, makes the bond strength between core pipe 21 and heat sink strip 3 better, further improves the heat conductivility between core pipe 21 and heat sink strip 3.
The present invention is preferred, and main element also comprises the low voltage control component that is positioned at main element one side, by responding to the parameter of main element, changes, and feeds back to control system, cuts off circuit, guarantees the safety of car load.Preferably, low voltage control component is between outermost heat sink strip 3 and framework, further preferably, low voltage control component comprises temperature sensor 4, and temperature sensor 4 can be arranged on outermost heat sink strip 3 by the mode of riveted joint, by the temperature on induction heat sink strip, when the temperature sensing when temperature sensor 4 surpasses setting value, feed back to control system, cut off circuit, guarantee the safety of car load.
Consult accompanying drawing 9,10, the present invention provides a kind of defogger simultaneously, comprises defogger housing, is positioned at blowing engine, air channel, the heating arrangement of housing, and is positioned at the air outlet of surface of shell.
Wherein, the present invention of defogger housing is restriction not, and the various defogger housings that can be known to the skilled person, such as thinking panel beating square casing etc.
Wherein, the preferred defogger of the present invention comprises the blowing engine fixed mount being connected with defogger housing that is positioned at defogger housing, and blowing engine is fixed in defogger housing by blowing engine fixed mount, prevent blowing engine in running car because of vibration displacement.The shape and structure of blowing engine fixed mount can adopt conventional shape and structure, and it can conventionally connect with being connected also of defogger housing, did not repeat them here, and its material can adopt metal etc.
Wherein, the surface of blowing engine comprises blast hole, and the wind of the generation in blowing engine blows out by blast hole.Number the present invention of blast hole is restriction not, can design as required, can be one, also can be for a plurality of, and its position also can be designed as required.For example blast hole comprises one, when blast hole is positioned at the center on blowing engine one surface, now, fan sheet can comprise left flat-fan, right flat-fan, upper fan sheet and the lower fan sheet that lays respectively at blast hole peripheral regions, described left flat-fan, right flat-fan, upper fan sheet and lower fan sheet tilt to air channel housing respectively in air channel, by air channel, by concentrated wind diffusion, make wind speed even, heating arrangement each several part surface uniform wind-engaging.Blast hole also can comprise a plurality of, when blast hole lays respectively at the periphery on blowing engine one surface, described fan sheet comprises left flat-fan, right flat-fan, upper fan sheet and the lower fan sheet of the neighboring area that lays respectively at blowing engine one surface, described left flat-fan, right flat-fan, upper fan sheet and lower fan sheet are centroclinal to air channel respectively in air channel, pass through air channel, the strong wind disperseing is concentrated, made wind speed even, heating arrangement each several part surface uniform wind-engaging.In the present embodiment, concrete blast hole comprises two, lays respectively at the upper left corner and the upper right corner on blowing engine one surface.
The present invention can be provided with the fan sheet of the wind direction that can change the wind that blast hole blows out in air channel, fan sheet and be provided with between the surface of blowing engine of blast hole and there is angle, thereby the high wind of concentrating or disperseing that blowing engine is produced by boasting blows on heating arrangement uniformly, by the fan sheet in air channel, the wind that blowing engine is produced by boasting blows on heating arrangement uniformly, make wind speed and the leaving air temp of air outlet of defogger more even, the regional defrosting effect of Windshield is more consistent, and whole defrosting area is also improved.
Wherein, air channel is between blast hole and heating arrangement, and the wind that described blast hole blows out blows to a side surface of heating arrangement by air channel, and another the relative side surface by heating arrangement dispels the heat afterwards, in air outlet, sheds.Wherein, air channel can be connected also and can not connect with blowing engine, heating arrangement, the present invention is preferred, air channel is connected with blowing engine, air channel is connected on blowing engine fixed mount, for example can be by the extended edge strip that contains screw hole of wind passage mouth periphery, this air channel is fastened on blowing engine fixed mount, blast hole is all arranged in the wind passage mouth in air channel, guarantee entering of blowing engine apoplexy, air channel is fixedly mounted in defogger housing simultaneously, is appreciated that air channel also can not adopt fixed mount according to shape or adopt separately fixed mount fixing etc.
Wherein, the movable adjusting of fan sheet also can be fixed and can not regulate, not restriction of the shape of fan sheet and material the present invention.In the present embodiment, blast hole can lay respectively at the both sides on blowing engine one surface, and preferably, fan sheet comprises some left flat-fans and some right flat-fans, and air channel is separated into some parts from vertical direction from left shell to right shell body.Wherein, number the present invention of left flat-fan, right flat-fan is restriction not, can also can a left flat-fan and right flat-fan be specifically set respectively in the present embodiment for a plurality of for one, and air channel is separated into three parts from vertical direction from left shell to right shell body.Wherein, big or small the present invention of left and right fan sheet is restriction not, can be slightly less than left and right housing, and upper/lower terminal is connected on upper and lower casing, and front end is positioned at the wind passage mouth place close to from heating arrangement, and rear end is connected with upper and lower fan sheet.Concrete, in the present embodiment, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, preferably, left flat-fan and right flat-fan are centroclinal to air channel respectively, and the high wind of both sides is drawn in, blow to uniformly on heating arrangement, particularly make the core of heating arrangement can blow to uniformly wind.In better situation, preferably, the angle of left flat-fan and vertical surface is 30 °-45 °, and the angle of right flat-fan and vertical surface is 30 °-45 °, and in the present embodiment, concrete left flat-fan and the angle of vertical surface are 37.2 °, and the angle of right flat-fan and vertical surface is 37.2 °.Preferably, fan sheet comprises some upper fan sheets and some lower fan sheets, and air channel is separated into some parts from horizontal direction from upper shell to lower house.Wherein, number the present invention of upper fan sheet, lower fan sheet is restriction not, can also can a upper fan sheet and lower fan sheet be specifically set respectively in the present embodiment for a plurality of for one, and air channel is separated into three parts from horizontal direction from upper shell to lower house.Wherein, big or small the present invention of upper fan sheet, lower fan sheet is restriction not, can be very little, length is at 20mm-30mm, can keep watch and evenly blow to the bottom of heating arrangement, be specifically as follows length 25mm in the present embodiment, left and right two ends are connected on left and right housing, rear end is positioned at the wind passage mouth place near the air channel of blast hole, away from the front end of blast hole, is connected with the rear end of left and right fan sheet.In the present embodiment, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, further preferably, upper fan sheet and lower fan sheet are downward-sloping respectively, make the bottom of the heating arrangement of small volume also can blow to uniformly wind, preferably, the angle of inclination of upper fan sheet is greater than lower fan sheet, makes the each several part wind-engaging of heating arrangement more even.In better situation, preferably, the angle of upper fan sheet and horizontal surface is 10 °-50 °, and the angle of lower fan sheet and horizontal surface is 10 °-50 °, and in the present embodiment, concrete upper fan sheet and the angle of horizontal surface are 31 °, and the angle of lower fan sheet and horizontal surface is 26 °.
Wherein, air channel comprises air channel housing, and air channel housing comprises upper shell, left shell, lower house and the right shell body of sealing-in between two, and connection the present invention of upper shell, left shell, lower house and right shell body is restriction not, can be one-body molded, also can adopt the conventional mode that is fixedly connected with to be connected and fixed.Wherein, big or small the present invention of upper shell, left shell, lower house and right shell body is restriction not, between upper shell, left shell, lower house and right shell body, can mutually vertically connect, and forms rectangle framework.Concrete, in the present embodiment, upper shell is less.
The present invention also can be separately by the fan sheet in air channel or set air channel, the wind that blowing engine is produced by boasting blows on heating arrangement uniformly, make wind speed and the leaving air temp of air outlet of defogger more even, the regional defrosting effect of Windshield is more consistent, and whole defrosting area is also improved.
In the present embodiment, blast hole comprises two, lays respectively at the both sides on blowing engine one surface, preferably, left shell and right shell body, respectively to air channel inner inclination, draw the high wind of both sides in, blow to uniformly on heating arrangement, particularly make the core of heating arrangement can blow to uniformly wind.In better situation, preferably, the angle of left shell and vertical surface is 10 °-34 °; The angle of right shell body and vertical surface is 10 °-34 °, and in the present embodiment, concrete left shell and the angle of vertical surface are 22 °, and the angle of right shell body and vertical surface is 22 °.In the present embodiment, blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, further preferably, upper shell and lower house are downward-sloping respectively, make the bottom of the heating arrangement of small volume also can blow to uniformly wind, preferably, the angle of inclination of upper shell is greater than lower house, make the each several part wind-engaging of heating arrangement more even, in better situation, preferably, the angle of upper shell and horizontal surface is 0-10 °, the angle of lower house and horizontal surface is 40 °-52 °, in the present embodiment, concrete upper shell and the angle of horizontal surface are 4 °, the angle of lower house and horizontal surface is 46 °.
The present invention provides a kind of air conditioning and heating system simultaneously, wherein, air conditioning and heating system comprises above-mentioned electric heater, wherein, the installation therein of miscellaneous part in air conditioning and heating system and electric heater is related to that the present invention can adopt conventional parts and conventional mounting means, is not repeating at this.
The present invention provides a kind of automobile simultaneously, wherein, electric heater is installed in automobile, and electric heater is above-mentioned electric heater, wherein, the installation relation of electric heater in automobile can adopt conventional installation relation, such as being applied to, after defogger or air conditioning and heating system, be applied to again automobile etc., for example, can be installed on automobile, especially in electronlmobil or hybrid vehicle, the air outlet of the a/c system of framework and automobile is suitable, or suitable with the air outlet of the blower fan of automobile; During summer high-temperature, electric heater does not start, and the wind by electric heater is still cold wind, winter is during low temperature, can constant temp. warming after electric heater starts, and air outlet cold wind out can become hot blast after temperature booster, can warm oneself, defrosting and demist, specifically at this, do not repeating.
Below will by specific embodiment, the present invention is described in detail.
embodiment 1
At aluminium siphunculus as shown in Figure 5, (thickness of heat radiation wall is 1.35mm, the thickness of stressed wall is 0.9mm, stressed wall caves inward, outer height is 9.2mm, interior height is 6.5mm) comprise PTC thermally dependent resistor is installed, between PTC thermally dependent resistor and aluminium siphunculus wall, clamp alumina ceramic plate, form heat element, by heat element, after heat sink strip is spaced, by heat conductive silica gel, bond and form main element, on the outermost heat sink strip of one side, riveted joint has 4 temperature sensors, on the both ends of main element, put the fixture of customization, filling heat resisting temperature is 280 ℃, coefficient of thermal conductivity is 1.4 W/ (mK), cohesiveness is the silica gel of 4MPa, until silica gel fills up the space between mould and main element, solidify, the conducting strip that extends aluminum pipe of electrical connection PTC thermally dependent resistor and the lead-out tablet of end and the both ends opening of aluminium siphunculus are all covered by the water-tight glue frame of two ends formation.After at the periphery of main element, load onto framework, make electric heater sample S1.
Comparative example 1
Adopt the method for CN200820030975 to prepare electric heater, aluminium siphunculus (rectangular tube that wall thickness is 1.35mm) comprises installs PTC thermally dependent resistor, the outside coated high molecular dielectric film of PTC thermally dependent resistor, the two ends filling gel of aluminium siphunculus is also covered with insulation shell, form heat element, after heat element, heat sink strip are spaced, by heat conductive silica gel, bond and form main element, after at the periphery of main element, load onto framework.Make electric heater sample DS1.
Comparative example 2
PTC thermally dependent resistor is coated in polymer insulating film, forms heat element, after heat element, heat sink strip are spaced, filling heat conductive silica gel, after solidifying, makes main element, after at the periphery of main element, load onto framework.In this process, have a large amount of Bubble formations in silica gel solidification process, the performance that affects product is water resistance particularly.Make electric heater sample DS2.
Performance testing:
Water resistance test: drain current (the 1.8KVAV voltage that detects dielectric voltage withstand before water resistance test, leakage current < 5mA), insulation resistance (0.6KVDC voltage, insulation resistance > 1000M Ω) and power (voltage 320VDC test 3min under room temperature, wind speed 4.5m/s), then test the water resistance of electric heater, electric heater is placed in the bottom of 0.85m * 0.85m * 0.85m water tank, standing 30min, take out afterwards electric heater and test the drain current of its dielectric voltage withstand (1.8KVAV voltage, leakage current < 5mA) and insulation resistance (0.6KVDC voltage, insulation resistance > 20M Ω), be completed and be placed on 130 ℃ of baking ovens baking 1.5h, after oven dry moisture, test drain current (the 1.8KVAV voltage of dielectric voltage withstand, leakage current < 5mA), insulation resistance (0.6KVDC voltage, insulation resistance > 1000M Ω) and power (voltage 320VDC test 3min under room temperature, wind speed 4.5m/s).
IPXX grade: IPX 1: method name: vertical water drip test; Test facility: dribble test equipment; Sample is placed: by sample normal operation position, be placed on the specimen rotating holder with 1r/min, sample top to the distance of water dropping openings is not more than 200mm; Test condition: the amount of dripping is 10.5 mm/min; Time length: 10 min.
IPX 2: method name: 15 ° of water drip tests tilt; Test facility: dribble test equipment; Sample is placed: make a face of sample become 15 ° of angles with vertical line, sample top to the distance of water dropping openings is not more than 200mm.After the complete face of every test, change another face, totally four times; Test condition: the amount of dripping is 30.5 mm/min; Time length: 4 * 2.5 min(are totally 10 min).
IPX 3: method name: water pouring test; Test method: a. swing pipe type water pouring test; Test facility: the swing pipe type trickle experimental set-up that dabbles; Sample is placed: select the swing pipe of suitable radius, make sample table top At The Height in swing pipe diametrical position, sample is placed on sample platform, make its top be not more than 200mm to the distance of sample water injector, sample stage does not rotate.; Test condition: discharge is pressed the water spray hole count of swing pipe and calculated, and every hole is 0.07 L/min, during trickle, the water spray of the hole for water spraying in each 60 ° of segmental arcs of swing pipe mid point both sides sprays to sample.By test agent, be placed on swing pipe semicircle center.Swing pipe respectively swings 60 ° along vertical line both sides, totally 120 °.Each (2 * 120 °) about 4s that swings; Test period: continuous trickle 10 min; B. spray nozzle type water pouring test; Test facility: the hand-held trickle experimental set-up that dabbles; Sample is placed: make to test top to the parallel distance of hand-held shower water injector between 300mm to 500mm; Test condition: answer the baffle plate of mounting strap weight equalizer during test, discharge is 10 L/min; Test period: press the long-pending calculating of test sample case surface, every sq m is 1 min (not comprising erection space), minimum 5 min.
IPX 4: method name: test dabbles; Test method: a. swing pipe type test that dabbles; Test facility and sample are placed: all identical with a money of above-mentioned IP X 3; Test condition: except aftermentioned condition, all identical with a money of above-mentioned IP X 3; Water spray area is that the water spray of hole for water spraying in each 90 ° of segmental arcs of swing pipe mid point both sides sprays to sample.By test agent, be placed on swing pipe semicircle center.Swing pipe respectively swings 180 ° along vertical line both sides, approximately 360 ° altogether.Each (2 * 360 °) about 12s that swings; Test period: with a money of above-mentioned IP X 3 all identical (i.e. 10 min).B. the spray nozzle type test that dabbles; Test facility and sample are placed: all identical with the b money of above-mentioned IP X 3; ; Test condition: remove the baffle plate of mounting strap weight equalizer on equipment, all the other are all identical with the b money of above-mentioned IP X 3; ; Test period: all identical with the b money of above-mentioned IP X 3, press the long-pending calculating of test sample case surface, every sq m is the minimum 5min of 1 min (not comprising erection space).
IPX 5: method name: water spray test; Test facility: the water injector internal diameter of nozzle is 6.3mm; Test condition: making test article is apart 2.5m～3m to water injector, and discharge is 12.5 L/min (750 L/h); Test period: press the long-pending calculating of test sample case surface, every sq m is minimum 3 min of 1 min (not comprising erection space).
IPX 6: method name: strong water spray test; Test facility: the water injector internal diameter of nozzle is 12.5 mm; Test condition: making test article is apart 2.5m～3m to water injector, and discharge is 100 L/min (6000 L/h); Test period: press the long-pending calculating of test sample case surface, every sq m is that 1 min(does not comprise erection space) minimum 3 min.
IPX 7: method name: water immersion test in short-term; Test facility and test condition: immersion case.Its size should make sample put into after immersion case, and sample bottom is at least 1m to the distance of the water surface.Sample top is at least 0.15m to water surface distance; Test period: 30 min.
In Q/BYDQ-AF01.707.4-2,010 4.8: under the ambient temperature of 25 ℃ ± 2 ℃, apply 2200VAC between electrode terminal and aluminium shell, the external voltage time is 60s, Guo Lou electricity Liu≤5mA, without puncturing, flashover; Under the ambient temperature of 25 ℃ ± 2 ℃, between electrode terminal and aluminium shell, apply the voltage 600VDC of regulation, insulation resistance is not less than 500M Ω.
Test result is as table 1,2,3,4.
Table 1
| Before immersion | S1 | DS1 | DS2 |
| 1.8KVAC is withstand voltage leakage current/mA | 3.49 | 3.70 | 3.72 |
| 0.6KVDC insulation resistance | ＞1000MΩ | ＞500MΩ | ＞500MΩ |
| Peak current/A | 23.6 | 24.6 | 24.9 |
| Steady current/A | 15.8 | 10.5 | 10.9 |
| Power P/W | 5056 | 3360 | 3488 |
Table 2
| After immersion | S1 | DS1 | DS2 |
| 1.8KVAC is withstand voltage leakage current/mA | 3.59 | NO | NO |
| 0.6KVDC insulation resistance | ＞1000MΩ | ＜1MΩ | ＜1MΩ |
Table 3
| Dry after moisture | S1 | DS1 | DS2 |
| 1.8KVAC is withstand voltage leakage current/mA | 3.30 | 3.72 | 3.73 |
| 0.6KVDC insulation resistance | ＞1000MΩ | ＞500MΩ | ＞500MΩ |
| Peak current/A | 23.8 | 24.8 | 24.8 |
| Steady current/A | 15.7 | 10.6 | 11 |
| Power P/W | 5024 | 3392 | 3520 |
Table 4
| ? | S1 | DS1 | DS2 |
| Water resistance | IPX7 | IPX3 | IPX3 |
Note: waterproof rank is more high better, and IPX7 is highest level.
The water resistance of electric heater of the present invention can reach highest level-IPX7 level, more existing IPX3 level is greatly increased, whole electric heater is immersed in the water tank that 1m is dark, still can normally work, water resistance is excellent, and its resistance toly puncture, high voltage performance, anti-vibration performance be improved.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (28)
1. an electric heater, is characterized in that, comprising: the main element in framework and framework, and described main element comprises have some heat sink strips and some heat elements placed side by side, described heat sink strip and heat element interval arrange;
Described heat element comprises core pipe and is installed on the PTC thermally dependent resistor in core pipe;
Between described core pipe and adjacent heat sink strip, be provided with heat conductive silica gel, described core pipe and described heat sink strip are bonding by described heat conductive silica gel;
Described main element is coated with water-tight glue frame for connecting the end of electric current, and described water proof glue frame is positioned at framework.
2. electric heater according to claim 1, it is characterized in that: described main element is provided with lead-out tablet for connecting the end of electric current, described core pipe contains the conducting strip being electrically connected to PTC thermally dependent resistor, described conducting strip extends knockout pipe and is electrically connected to lead-out tablet, and part and lead-out tablet that described conducting strip extends knockout pipe are arranged in described water-tight glue frame.
3. electric heater according to claim 1, is characterized in that: the both ends of described main element are coated with water-tight glue frame.
4. electric heater according to claim 1, is characterized in that: a side of described main element is also provided with protective core pipe, and the end surface of described main element is coated with water-tight glue.
5. electric heater according to claim 1, is characterized in that: described core pipe is aluminium siphunculus, and described core pipe comprises two heat radiation walls and two stressed walls, and described two heat radiation walls are relative with adjacent heat sink strip, and the thickness of described heat radiation wall and stressed wall is different.
6. electric heater according to claim 5, is characterized in that: the thickness of described heat radiation wall is greater than the thickness of stressed wall.
7. electric heater according to claim 6, is characterized in that: the thickness of described heat radiation wall is 1.0-1.4mm; The thickness of described stressed wall is 0.6-1.0mm.
8. electric heater according to claim 1, is characterized in that: described core pipe comprises two heat radiation walls and two stressed walls, and described two heat radiation walls are relative with adjacent heat sink strip, and described stressed wall has to the concave arc of core pipe inner recess.
9. electric heater according to claim 1, is characterized in that: described water-tight glue is that heat resisting temperature is more than or equal to the silica gel that 280 ℃, coefficient of thermal conductivity are more than or equal to 1.4 W/ (mK).
10. electric heater according to claim 1, is characterized in that: between described core pipe and PTC thermally dependent resistor, be provided with insulating material, described insulating material is ceramic wafer.
11. electric heaters according to claim 1, is characterized in that: described heat sink strip comprises two connecting straps and be located at the radiating gill between two connecting straps, and described radiating gill is for being undulatory aluminium flake.
12. electric heaters according to claim 1, is characterized in that: between two adjacent heat elements, be provided with at least one heat sink strip, and be provided with at least two heat sink strips between outermost heat element and framework.
13. electric heaters according to claim 1, is characterized in that: described main element also comprises the low voltage control component that is positioned at main element one side, and described low voltage control component is between outermost heat sink strip and framework.
14. electric heaters according to claim 13, is characterized in that: described low voltage control component comprises temperature sensor, and described temperature sensor is riveted on outermost heat sink strip.
15. 1 kinds of defoggers, is characterized in that, described defogger comprises defogger housing, are positioned at blowing engine, the heating arrangement of defogger housing, and are positioned at the air outlet of defroster housing surface; The surface of described blowing engine comprises blast hole, and the wind in described blowing engine blows out by blast hole; The wind that described blast hole blows out is to a side surface of heating arrangement, and another the relative side surface by heating arrangement dispels the heat afterwards, in air outlet, sheds; Described heating arrangement is the electric heater described in claim 1-14 any one.
16. defoggers according to claim 15, it is characterized in that: described defogger also comprises air channel, described air channel is between blast hole and heating arrangement, the wind that described blast hole blows out blows to a side surface of heating arrangement by air channel, another relative side surface by heating arrangement dispels the heat afterwards, in air outlet, sheds.
17. defoggers according to claim 16, is characterized in that: described air channel comprises air channel housing, and described air channel housing comprises upper shell, left shell, lower house and the right shell body of sealing-in between two, and described left shell and right shell body are respectively to air channel inner inclination.
18. according to defogger described in claim 17, it is characterized in that, the angle of described left shell and vertical surface is 10 °-34 °; The angle of described right shell body and vertical surface is 10 °-34 °.
19. according to defogger described in claim 17, it is characterized in that, described blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described upper shell and lower house are downward-sloping respectively.
20. according to defogger described in claim 19, it is characterized in that, the angle of described upper shell and horizontal surface is 0 °-10 °; The angle of described lower house and horizontal surface is 40 °-52 °.
21. defoggers according to claim 16, is characterized in that: in described air channel, be provided with fan sheet, described fan sheet and be provided with between the surface of blowing engine of blast hole and have angle, can change the wind direction of the wind that blast hole blows out.
22. defoggers according to claim 21, is characterized in that: described blast hole lays respectively at the both sides on blowing engine one surface, and described fan sheet comprises some left flat-fans and some right flat-fans, and described left flat-fan and right flat-fan are centroclinal to air channel respectively.
23. according to defogger described in claim 22, it is characterized in that, the angle of described left flat-fan and vertical surface is 30 °-45 °; The angle of described right flat-fan and vertical surface is 30 °-45 °.
24. according to defogger described in claim 21, it is characterized in that, described blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described fan sheet comprises some upper fan sheets and some lower fan sheets, and described upper fan sheet and lower fan sheet are downward-sloping respectively.
25. according to defogger described in claim 24, it is characterized in that, the angle of described upper fan sheet and horizontal surface is 10 °-50 °; The angle of described lower fan sheet and horizontal surface is 10 °-50 °.
26. according to defogger described in claim 21, it is characterized in that, described blast hole lays respectively at the upper left corner and the upper right corner on blowing engine one surface, and described air channel comprises air channel housing;
Described fan sheet comprises some left flat-fans and some right flat-fans, and described left flat-fan and right flat-fan are centroclinal to air channel respectively;
Described fan sheet comprises some upper fan sheets and some lower fan sheets, and described upper fan sheet and lower fan sheet are downward-sloping respectively;
The both ends, left and right of described upper fan sheet, lower fan sheet are connected with air channel housing respectively;
The both ends up and down of described left flat-fan, right flat-fan are connected with air channel housing respectively;
Described upper fan sheet, lower fan sheet are connected with the rearward end of the close blast hole of left flat-fan, right flat-fan respectively away from the leading section of blast hole.
27. 1 kinds of air conditioning and heating systems, is characterized in that, described air conditioning and heating system comprises the electric heater as described in claim 1-14 any one.
28. 1 kinds of automobiles, is characterized in that, in described automobile, electric heater are installed, and described electric heater is the electric heater as described in claim 1-14 any one.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155520.5A CN104118299B (en) | 2013-04-28 | 2013-04-28 | A kind of electric heater, frost removal, air conditioning and heating system and automobile |
| EP14791730.6A EP2962526B1 (en) | 2013-04-28 | 2014-04-18 | Electric heater, defroster, heating and air conditioning system and vehicle |
| PCT/CN2014/075735 WO2014176988A1 (en) | 2013-04-28 | 2014-04-18 | Electric heater, defroster, heating and air conditioning system and vehicle |
| JP2016508000A JP6169781B2 (en) | 2013-04-28 | 2014-04-18 | Electric heater, defroster, heating air conditioning system and vehicle |
| KR1020157032208A KR101792376B1 (en) | 2013-04-28 | 2014-04-18 | Electrical heater, defroster, heating and air conditioning system and vehicle |
| US14/260,465 US9879880B2 (en) | 2013-04-28 | 2014-04-24 | Electric heater, and apparatus, heating and air conditioning system, and vehicle comprising the same |
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| CN201310155520.5A CN104118299B (en) | 2013-04-28 | 2013-04-28 | A kind of electric heater, frost removal, air conditioning and heating system and automobile |
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| CN104118299A true CN104118299A (en) | 2014-10-29 |
| CN104118299B CN104118299B (en) | 2016-09-07 |
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