CN203368778U - Vehicle electrical heating device with heat shielding unit - Google Patents
Vehicle electrical heating device with heat shielding unit Download PDFInfo
- Publication number
- CN203368778U CN203368778U CN 201220757366 CN201220757366U CN203368778U CN 203368778 U CN203368778 U CN 203368778U CN 201220757366 CN201220757366 CN 201220757366 CN 201220757366 U CN201220757366 U CN 201220757366U CN 203368778 U CN203368778 U CN 203368778U
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- Prior art keywords
- resistance heating
- vehicle electrical
- thermal shield
- electrical heater
- heating conductor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/262—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an insulated metal plate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/022—Heaters specially adapted for heating gaseous material
- H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system
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- Air-Conditioning For Vehicles (AREA)
- Surface Heating Bodies (AREA)
Abstract
The utility model relates to a vehicle electrical heating device (1) which includes a pedestal (6) and at least one resistance heating conductor (2) extending on a surface (4) of the pedestal (6). The resistance heating conductor (2) is electrically insulated from the pedestal (6). The vehicle electrical heating device (1) also includes a heat shielding unit (20), wherein the heat shielding unit extends beyond at least part of an extension surface of the resistance heating conductor (2) at the side opposite to the pedestal (6).
Description
Technical field
The utility model relates to a kind of vehicle electrical heater.
Background technology
Known have various for vehicle, especially for the heater of engine-driven road transporting tool.In the motor vehicle of traditional use internal combustion engine, for example be known that the used heat that utilizes internal combustion engine heats the inner space of vehicle.Usually, the cooling liquid heated by internal combustion engine is passed through cooling liquid-air-heat exchanger at this by delivery, so that heating is input to the air of the inner space of motor vehicle.
In thering is the modern automotive of internal combustion engine, in many cases, particularly, in the Diesel engine of having optimized energy consumption, the used heat of internal combustion engine can not be used further to heat satisfactorily the inner space of vehicle, makes to use the additional vehicle heating device with own thermal source.Usually, additional heater can be configured to auxiliary heater, by this auxiliary heater, can additionally provide thermal power at the drive motors run duration.Alternatively, the vehicle heating device also can be configured to the parking heating device, by it, not only at the drive motors run duration, and all can provide thermal power when drive motors is static.As additional vehicle heating device, the vehicle heating device that known fuel drives on the one hand, these devices are for example used gasoline, diesel oil, ethanol or gas driven, and go back the known vehicle electric heater unit on the other hand, and it is heat energy that these devices are configured to electric energy conversion.
In the road traffic instrument, the so-called PTC heater of application in a lot of situations in the vehicle heating device, these heaters have the unexpected rising of resistance on given temperature, reach to have thus to prevent overheated self-control protection.And in the situation that applied other resistance heating conductor, usually the consideration for fail safe need to adopt some other safeguard measures, to avoid occurring overheated and/or fire.These safeguard measures can relatively easily realize in conventional motor vehicle, the automobile electrical network of conventional motor vehicle use low pressure, and it is usually with the voltage power supply between 12 volts and 42 volts.
Motor vehicle has strong expansion trend, in motor vehicle, replaces internal combustion engine or also be equipped with one or more motor as drive unit except internal combustion engine in so-called motor vehicle driven by mixed power.Usually the high voltage automobile electrical network is equipped with in these motor vehicles, this electrical network have surpass 100 volts, particularly surpass 150 volts, for example 200 volts from 600 volts between or according to the different configurations also direct voltage between 200 volts and 1000 volts in case of necessity.Especially in this class motor vehicle, also wish, the vehicle electrical heater also can drive by corresponding high supply voltage, in order to can omit relatively costly electric pressure converter.
EP1459332B1 has described a kind of electric heater unit and a kind of method that is used for manufacturing electric heater unit.During electric heater unit when operation under high supply voltage in motor vehicle, important viewpoint is, will be down to minimum in the danger of the region generating fire of this electric heater unit.
The utility model content
Task of the present utility model is, a kind of vehicle electrical heater is provided, wherein, can be simply and the favourable mode of cost will be down to minimum due to the danger that excessive heat release makes parts on every side produce fire and/or damage.
This task solves by vehicle electrical heater according to claim 1.Favourable expansion scheme is illustrated in the dependent claims.
According to the utility model, the vehicle electrical heater has substrate and at least one resistance heating conductor extended on substrate surface, and this resistance heating conductor is with respect to the substrate electric insulation.In addition, the vehicle electrical heater also has thermal shield apparatus, this thermal shield apparatus with the opposed side that deviates from other words substrate of substrate on extend beyond at least a portion of the extended surface of resistance heating conductor.
Show in experiment, in such vehicle electrical heater, can fire hazard occur in the following manner, that is, and in partial melting, bad contact and/or other defect of the region generating electric lead of resistance heating conductor.Then, there will be the temperature of obvious raising in this regional area, the material scorching hot (glowing a little) in this zone that can cause limiting in part.Then, in this zone, often can form electric arc, before, electric arc can keep for example, until a few second (5 seconds) to extinguish (this for example can pass through fully off resistance heater and realize) at it.Especially can produce high temperature when electric arc forms, make produced due to occur, strong heat release damages parts on every side and/or causes the danger of fire.By the resistance heating conductor is set on the surface of substrate, can on heat surplus direction, effectively realize going out in suprabasil thermal conductance.By opposed with substrate or wash on the side that deviates from substrate thermal shield apparatus is set, can be in the situation that formation be glowed a little and/or electric arc stops overheated at this side up adjacent parts effectively, and make thus the danger that forms fire be down to minimum.In addition, can reduce thermal losses by such thermal shield apparatus, because reduced the thermal radiation towards this side.
Particularly in the vehicle electrical heater of (at least 100V, the especially voltage condition in the 200-1000V scope) operation with direct current with in high voltage range, the danger that produces fire increases, because these factors can promote to produce metastable electric arc.
According to vehicle electrical heater of the present utility model can apply in principle and by relative configurations the heating different for interior of motor vehicles apply.These possible heating are applied especially:
Heating is (such as battery, storage battery, motor etc.) for the heat driven system component, liquid circulation loop (for example cooling water circulation loop) interior of motor vehicles,
The inner space of Convective ground heating vehicle, this heating especially is so formed, make the liquid circulation loop (for example cooling water circulation loop) that at first heats interior of motor vehicles by resistance heating conductor (in substrate and on corresponding heat exchanger), and heat again the air in being input to inner space by their (on corresponding heat exchangers), and/or
Surface (such as seat, instrumentation, steering wheel etc.) in non-Convective ground heating inner space and/or the assembly of drive system.
Especially, the vehicle heating device is configured to convection type ground heating inner space.Be suitable for particularly well having the vehicle of at least one motor according to vehicle heating device of the present utility model.This class vehicle can be designed as motor vehicle driven by mixed power, this means, these vehicles (except motor) also have the drive motors (for example internal combustion engine) of at least one replacing structure, or they can be designed to pure electric vehicle.Therefore, in such vehicle, the vehicle heating device is essential, because do not have sufficient for heating the used heat of inner space (or other parts and assembly) in the zone of drive system.In addition, according to vehicle heating device of the present utility model, for this class vehicle, be particularly advantageous, because usually provide relatively high supply voltage on the net at automobile electric in these vehicles, and just related to for so high supply voltage according to vehicle heating device of the present utility model.The vehicle electrical heater can be not only a parking heating device (that is, can independently move with the engine of motor vehicle), can be also auxiliary heater (that is, only work when the engine operation of motor vehicle).
Described substrate can be used as the carrier of resistance heating conductor.The surface of described substrate can be flat or crooked (such as cylindrical etc.) according to overall shape and general layout.The resistance heating conductor can be with respect to substrate electric insulation in the following manner for example, that is, substrate itself is electric insulation.Described substrate is preferred for heat conduction and goes out the heat produced by the resistance heating conductor.Because electrical insulating material is also the heat conductor of relative mistake usually, thus substrate preferably by the conduction material, especially by metal (such as aluminium, copper etc.), formed.In this case, the resistance heating conductor can be electric insulation with respect to substrate by electric insulation layer, and this electric insulation layer is built between resistance heating conductor and substrate.
The resistance heating conductor usually can be by PTC-stratie (PTC: positive temperature coefficient; Cold conductor), by NTC-stratie (NTC: negative temperature coefficient; Heat conductor) or usually by the resistance that there is almost the temperature independent anti-characteristic of sun, formed.Importantly, it is designed to corresponding voltage-and current range.The resistance heating conductor especially relates to section conducting wire, that be designed to produce heat, and does not comprise the feed line that is designed to not produce heat and contact section.
According to expanded configuration, thermal shield apparatus has the thermal shield apparatus parts of at least one and substrate-resistance heating conductor means separate construction.Especially, thermal shield apparatus only consists of the thermal shield apparatus parts of such separate construction.Substrate-resistive heating device is coherent device preferably, and this substrate-resistive heating device is by substrate, resistance heating conductor and other structure integrated with it or coupled parts and/or coating form in case of necessity.By thermal shield apparatus being configured to the separately mode of the thermal shield apparatus parts of formation, can in maintenance and/or maintenance status, easily take off this thermal shield apparatus.At this, can stipulate, the thermal shield apparatus parts can be separated the setting of turning up the soil by free interval and substrate-resistance heating conductor means.Alternatively, thermal shield apparatus also can closely recline or lie in substrate-resistance heating conductor means Shangdi setting.Aspect the layout of joint space-efficient, the flexible program of back is favourable.In addition, in this class formation, do not need independent suspender or fixture for the thermal shield apparatus parts.Also will describe ground in detail as following, the thermal shield apparatus parts can pass through rigid element (such as metallic plate, plate etc.), or form by elastomeric element (such as fibrofelt, flexible plastic components etc.).
According to expanded configuration, thermal shield apparatus has the thermal shield be applied on the resistance heating conductor.Particularly, this thermal shield apparatus only consists of a kind of like this thermal shield be applied on the resistance heating conductor.At this, thermal shield can be applied directly on the material of resistance heating conductor.Alternatively, at first the resistance heating conductor also can arrange (for example, by Al
2o
3make) (relative thin) cover layer, and thermal shield can be arranged on this cover layer.Thermal shield for example can be made by the mould material based on silicon (for example,, according to material, with the thickness of 5-10 millimeter).Thermal shield can be applied, particularly be sprayed on the surface that is provided with stratie of substrate simply.
For the configuration of thermal shield apparatus importantly, it can block produced heat before parts fully around in the duration that forms electric arc (usually until 5 seconds).For this proposed task, also can select the material of thermal shield apparatus.The task of this proposition can solve by metallic plate on the one hand, and this metallic plate reaches heat distribution fast thus because its good thermal conductivity can be used for quick heat radiating, and then can avoid extremely high temperature occurring on parts around.At this, metallic plate also has advantages of that relative cost is favourable.
Alternatively, the heat shielding effect can realize in the following manner, that is, the least possible heat sees through the thermal shield apparatus transmission.Particularly, have≤20W/m of thermal shield apparatus
2k (W: watt; M: rice; K: thermal transmission coefficient Kelvin).This scope especially can and be selected to realize by corresponding material by the respective thickness of thermal shield apparatus.Particularly, the thermal conductivity of have≤0.1W/mK of the material of thermal shield apparatus.Be for example the plate of being made by aeroge (particularly silica-based aeroge) of corresponding shaping for the appropriate variations scheme of thermal shield apparatus, mineral wool fabric pad (such as glass fibre, asbestos etc.), by fire proofing, form and can comprise in case of necessity glass-or (thering is corresponding large thickness) plastic film of ceramic particle etc.At this, what " aeroge " related to is highly porous solid, the major part of this solid volume (for example be greater than 95% of volume, particularly be greater than volume 97%) by pore, formed.
According to expanded configuration, the resistance heating layer that the resistance heating conductor is applied on substrate surface by least one forms.Thus, guaranteed good especially heat conduction in substrate.In addition, realized compact with firm in use device.At this, " resistance heating layer " also relates to section ground only and the preferable case of the resistance heating layer that for example, extends on substrate surface in corresponding (zigzag) conductor circuit.This resistance heating layer for example can be applied on substrate surface by thermal spraying, and described surface is also available (for example, by Al in case of necessity
2o
3make) the electric insulation layer coating.In addition, other suitable applying method is plasma spraying, HVOF, electric arc spraying, autonomous spraying (Autogenspritzen), laser spraying or cold air spraying or other suitable coating process.If should on each section, again remove resistance heating layer, for example, during for example, for the manufacture of corresponding (zigzag) conductor circuit, this also remove can be by by laser beam, realize by the processing of water jet etc.Resistance heating layer can be made by different materials by profile as requested.By thermal spraying, multiple material can be applied as layer.Especially, by nickel-chromium (Ni-Cr) alloy, made for described layer.According to expanded configuration, resistance heating layer consists of a thin layer, wherein the bed thickness of " thin layer " relate to≤100 μ m.For example, this thin layer can have (scope: thickness +/-10 μ m) in 20 μ m scopes.In addition, also have in principle such possibility, that is, a plurality of resistance heating layers also are applied on substrate surface up and down overlappingly, wherein, these resistance heating layers by electric insulation (for example, by Al
2o
3forming) intermediate layer is electrically insulated from each other.
According to expanded configuration, thermal shield apparatus at least covers the whole extended surface of resistance heating conductor.In this way, on the deathtrap that exists therein electric arc to produce, realize the heat shielding effect.Aspect thermal loss in reducing conventional operation, this class formation is favourable.Thermal shield apparatus is the extensible extended surface that surpasses the resistance heating conductor especially also.
In principle, thermal shield apparatus also can have (structure as small as possible) through hole, as it for example in the situation that thin metal grid mesh.Yet preferably, thermal shield apparatus is constructed above extended surface continuously at it aspect effective as far as possible heat shielding effect.
According to expanded configuration, the extended surface ground that thermal shield apparatus is arranged essentially parallel to the resistance heating conductor in the zone covered by thermal shield apparatus of resistance heating conductor extends.
According to expanded configuration, thermal shield apparatus at least has heat-reflecting material on the side towards the resistance heating conductor.Improved thus the heat shielding effect.For example, thermal shield apparatus has reflectance coating, for example metal film on related side.A good suitable flexible program is for example the thermal shield apparatus consisted of the mineral wool fabric pad, and this mineral wool fabric pad has the film (for example metal film or scribble the film of metal) of reflecting heat on the side towards the resistance heating conductor.
According to expanded configuration, thermal shield apparatus by a kind of in relevant temperature range non-flammable material make." relevant temperature range " relates to such temperature range, that is, described temperature range is until the high temperature occurred while forming electric arc in the zone of thermal shield apparatus.The maximum temperature of these appearance of respective material and combustibility are preferably determined in the experiment category.Suitable material also can the combustibility according to DIN4102-1 be divided to select corresponding to it.According to this standard, material can be divided into class A1, A2, B1, B2, B3, and wherein, combustibility increases from A1 to B3 (with the order provided above).According to an expanded configuration, the material that forms thermal shield apparatus by it is divided in class B1 (or in the A-class one in), especially at least in class A2 (or in A1-class).When this material is divided in class A1, be preferred.
According to expanded configuration, substrate is arranged for the resistance heating conductor is thermally coupled on medium to be heated (the liquid of the liquid circulation loop of vehicle interior for example; Then be imported into air stream in inner space etc.), or be thermally coupled at least one parts to be heated (such as assembly of drive system etc.).Correspondingly, can contact with the large tracts of land of resistance heating conductor by substrate, effectively derive the heat of resistance heating conductor.Preferably, described substrate is made by the material with high thermal conductivity, especially by metal (such as aluminium, copper etc.), is made.Other parts, coating etc. also can participate in the resistance heating conductor to medium to be heated or to the thermal coupling at least one parts to be heated.But, aspect effective as far as possible hot transmission preferably, the thermal coupling of resistance heating conductor as far as possible directly realizes on that be correlated with, to be heated medium or parts by substrate, makes and does not have or only have other the least possible parts, coating etc. to participate in the heat transmission.
According to expanded configuration, substrate has the heat exchanger that is integrated structure.Additional or alternatively, it also can be connected with heat exchanger with heat conduction.This heat exchanger have for heat extraction, can be by the fluid path of heat-carrying agent percolation.This fluid path especially can be configured in substrate with the opposed side of resistance heating conductor on.In this way, heat can be transferred on medium to be heated effectively.Fluid path especially can be provided for for example being connected to, on the liquid circulation loop (cooling water circulation loop) of relevant motor vehicle.
According to expanded configuration, the resistance heating conductor have to the thermal shield apparatus side (for example, by Al
2o
3make) the electric insulation cover layer.By such electric insulation cover layer, resisted the aging of resistance heating conductor and reduced the danger that electric arc forms.According to expanded configuration, the resistance heating conductor have basad side (for example, by Al
2o
3make) the electric insulation cover layer.By the latter, the resistance heating conductor can be with respect to the substrate electric insulation.Preferably, substrate surface at first by such one (for example, by Al
2o
3make) the electric insulation cover layer applies, and then the resistance heating conductor is set on the substrate surface applied by this cover layer (for example as resistance heating layer or as wire resistance heating conductor, there is respectively the conductor circuit of corresponding extension).At this, it is (for example zigzag on plane surface that the concrete structure of conductor circuit and resistance heating conductor independently especially has this class trend; Such as spiral etc. on cylindrical surface), that is, be mounted with long as far as possible conductor circuit on substrate surface.Preferably, following not only resistance heating conductor is provided with (for example, by Al
2o
3make) the electric insulation cover layer.More preferably, the interval formed between conductor circuit is fully by (for example, by Al
2o
3make) the electric insulation cover layer fills, in order to produce a flat surface basically.This is particularly advantageous aspect steadiness.The electric insulation cover layer also can be made by other electrical insulating material except the exemplary aluminium oxide of mentioning, and described material is particularly made by ceramic material.
According to expanded configuration, the vehicle electrical heater is designed to DC power supply voltage and reaches for heating moves the resistance heating conductor by direct current.This is corresponding to usually at the online available supply voltage of the automobile electric of motor vehicle, and this motor vehicle has at least one motor.Be designed to a kind of like this mode of supply voltage by the vehicle heating device, needn't make available supply voltage carry out cost consumption to the particular requirement that had in case of necessity of vehicle heating device and cause the adjusting of power loss.In addition, the supply voltage that can be provided by the automobile electrical network in having the motor vehicle of at least one motor is at least 100 volts, wherein, can have more high-tension trend at present.Especially-according to motor vehicle-in the supply voltage provided by the automobile electrical network, voltage can be up to 1000 volts.Especially, in the online scope of available mains voltage between 200 volts and 600 volts of automobile electric.Cost consumption, the adjusting that cause power loss (for example conversion) of the supply voltage that also can avoid available in order to generate heat at supply voltage aspect big or small to the particular requirement had in case of necessity of vehicle heating device, the vehicle electrical heater is configured to the supply voltage of at least 100 volts according to expanded configuration, and supply voltage can not change ground (there is no voltage transformation ground) be applied on the resistance heating conductor.Especially can realize by the pulse width modulation (PWM) of voltage signal the adaptation of the maximum power requirement that supply voltage and vehicle heating device are required and/or the adaptation of the adjusting of the different thermal power levels of the relative vehicle heating device of supply voltage.
The accompanying drawing explanation
Other advantage of the present utility model and reasonability can and draw with reference to accompanying drawing from the following explanation of embodiment.
Fig. 1 is the schematic diagram by the vehicle electrical heater of the first form of implementation of the present utility model;
Fig. 2 is the schematic diagram of the replacement configuration of thermal shield apparatus parts;
Fig. 3 is the schematic diagram of another replacement configuration of thermal shield apparatus parts;
Fig. 4 is the schematic diagram of another replacement configuration of thermal shield apparatus parts;
Fig. 5 is the schematic diagram by the vehicle electrical heater of the second form of implementation of the present utility model.
Embodiment
Below with reference to Fig. 1, the first form of implementation according to vehicle heating device 1 of the present utility model is described.At this, correctly do not provide in the drawings size.View is selected like this, makes each assembly of vehicle heating device 1 clear and legible.
Vehicle electrical heater 1 has resistance heating conductor 2, and it is connected with voltage source 3.Although a schematically illustrated only resistance heating conductor 2 in Fig. 1, vehicle electrical heater 1 also can have a plurality of resistance heating conductors 2.This resistance heating conductor 2 is ohmic heating elements, and this heating element is directly changed into thermal power by electrical power.This resistance heating conductor 2 is constructed to high voltage-resistance heating conductor, and this conductor is designed to have and is greater than 100 volts, is preferably greater than 150 volts, the especially direct voltage operation of the supply voltage in the scope of 200 volts to 1000 volts.When 1 operation of vehicle heating device, apply corresponding high direct voltage by voltage source 3, this voltage source especially consists of the automobile electrical network of affiliated motor vehicle.
In addition, vehicle electrical heater 1 has thermal shield apparatus parts 20, and these parts are constructed dividually with substrate-resistance heating conductor means 18.These thermal shield apparatus parts 20 arrange at interval by free interval and substrate-resistance heating conductor means 18, and by corresponding (unshowned) support, keep in this device.The extended surface ground that thermal shield apparatus parts 20 are arranged essentially parallel to resistance heating layer 14 extends.In addition, thermal shield apparatus parts 20 extend beyond the extended surface of resistance heating layer 14, make and have realized good heat shielding.In shown the first form of implementation, these thermal shield apparatus parts 20 form by the plastic plate of being made by non-combustible plastics, and non-combustible plastics have poor thermal conductivity.
Thermal shield apparatus parts 20 are normal in service for making the thermal loss on this direction reduce to minimum, thus the most of heat produced by substrate 6 derivation.If the interference that causes electric arc to form occurs in the zone of resistance heating layer 14, around the 20 meeting preventions of thermal shield apparatus parts, parts are on fire.
Other possible configuration of thermal shield apparatus parts is described in conjunction with Fig. 2 to Fig. 4 below.In Fig. 2, thermal shield apparatus parts 22 are made by mineral wool fabric pad 24, and this wool fabric pad in use is provided with heat-reflecting metal film 26 on the side of resistance heating conductor.The thick plastic film 30 that thermal shield apparatus parts 28 shown in Fig. 3 consist of fire proofing is made.At this, can also comprise glass-or ceramic particle 32 in the material of this plastic film 30, as it usually in commercially available, the plastic film made by fire proofing on the market.These glass-or ceramic particle 32 is schematically illustrated in Fig. 3.Thermal shield apparatus parts 34 shown in Figure 4 are made by metallic plate.
Replace the layout ground of the thermal shield apparatus parts 20 shown in Fig. 1 with respect to substrate-resistance heating conductor means 18, the thermal shield apparatus parts of the thermal shield apparatus parts 20 shown in Fig. 1 or alternate manner structure are abutted in substrate-resistance heating conductor means 18 Shangdis and are arranged (on the side of resistance heating conductor).
Below with reference to Fig. 5, the second form of implementation of vehicle electrical heater 1 ' is described.At this, for parts identical or that correspond to each other, use and identical in the first form of implementation, reference marker that be provided with line.Following article is with respect to the difference of first form of implementation.
In the second form of implementation shown in Figure 5, resistance heating layer 14 ' also is provided with by Al in the covering side
2o
3the electric insulation cover layer 16 ' formed.This cover layer 16 ' is also applied like this by spraying method, make the interval 38 ' formed between the conductor circuit 36 ' extended in complications to fill fully by the material of cover layer 16 ', and obtain afterwards a plane surface 40 ' applying cover layer 16 ' thus.In the second form of implementation, thermal shield apparatus 20 ' forms by the thermal shield 20 ' on a plane surface 40 ' that is applied to cover layer 16 '.This thermal shield 20 ' consists of the mould material based on silicon.
Claims (15)
1. a vehicle electrical heater, it has substrate (6; 6 ') and at least one is in substrate (6; 6 ') surface (4; 4 ') the upper resistance heating conductor (2 extended; 2 '), this resistance heating conductor is with respect to substrate (6; 6 ') be electric insulation, wherein, this vehicle electrical heater (1; 1 ') also there is thermal shield apparatus (20; 22; 28; 34; 20 '), this thermal shield apparatus with substrate (6; 6 ') extend beyond resistance heating conductor (2 on opposed side; 2 ') at least a portion of extended surface.
2. by vehicle electrical heater claimed in claim 1, it is characterized in that, described thermal shield apparatus has the thermal shield apparatus parts (20 of at least one and substrate-resistance heating conductor means (18) separate construction; 22; 28; 34).
3. by the described vehicle electrical heater of claim 1 or 2, it is characterized in that, described thermal shield apparatus has the thermal shield (20 ') be applied on resistance heating conductor (2 ').
4. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described thermal shield apparatus (20; 22; 28; 34; 20 ') have≤20W/m
2the thermal transmission coefficient of K.
5. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described thermal shield apparatus (20; 22; 28; 20 ') thermal conductivity of have≤0.1W/mK of material.
6. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that resistance heating conductor (2; 2 ') be applied to substrate (6 by least one; 6 ') surface (4; 4 ') resistance heating layer (14 on; 14 ') form.
7. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described thermal shield apparatus (20; 22; 28; 34; 20 ') at least cover resistance heating conductor (2; 2 ') whole extended surface.
8. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described thermal shield apparatus (20; 22; 28; 34; 20 ') at it, above extended surface, form continuously.
9. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that, described thermal shield apparatus (22) at least has heat-reflecting material (26) on the side towards the resistance heating conductor.
10. by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described thermal shield apparatus (20; 22; 28; 34; 20 ') by non-flammable material in relevant temperature range, made.
11., by the described vehicle electrical heater of any one 1 in the claims, it is characterized in that described substrate (6; 6 ') be configured to make resistance heating conductor (2; 2 ') be thermally coupled on medium to be heated or be thermally coupled at least one parts to be heated.
12., by vehicle electrical heater claimed in claim 1, it is characterized in that this substrate (6; 6 ') there is the heat exchanger (8 that is integrated structure; 8 ') and/or with heat conduction with heat exchanger, be connected, wherein, this heat exchanger (8; 8 ') have for heat extraction, can be by the fluid path of heat-carrying agent percolation.
13., by vehicle electrical heater claimed in claim 1, it is characterized in that resistance heating conductor (2; 2 ') have to thermal shield apparatus (20; 20 ') side and/or basad (6; 6 ') the electric insulation cover layer (12,16 of side; 12 ', 16 ').
14. by vehicle electrical heater claimed in claim 1, it is characterized in that, this vehicle electrical heater is designed to DC power supply voltage, and for by direct current, heating moves resistance heating conductor (2; 2 ').
15. by vehicle electrical heater claimed in claim 1, it is characterized in that, this vehicle electrical heater is designed to the supply voltage of at least 100 volts, and this supply voltage can be applied to resistance heating conductor (2 with not changing; 2 ') on.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011057108.6 | 2011-12-28 | ||
| DE201110057108 DE102011057108A1 (en) | 2011-12-28 | 2011-12-28 | Electrical heating device for engine-driven road vehicle, has heating conductor electrically insulated opposite to substrate, and heat shield component extending over part of surface of conductor on side that is formed opposite to substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368778U true CN203368778U (en) | 2013-12-25 |
Family
ID=48607806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220757366 Expired - Lifetime CN203368778U (en) | 2011-12-28 | 2012-12-27 | Vehicle electrical heating device with heat shielding unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203368778U (en) |
| DE (1) | DE102011057108A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107004454A (en) * | 2014-11-07 | 2017-08-01 | 韦巴斯托股份公司 | The equipment of electric heater unit for the method for the contact zone of the layer that manufactures electric heater unit and for motor vehicle |
| CN108700333A (en) * | 2016-02-18 | 2018-10-23 | 韦巴斯托股份公司 | Oil-water heat exchanger is especially used for the internal combustion engine of motor vehicles |
| CN110678705A (en) * | 2017-05-24 | 2020-01-10 | 韦巴斯托股份公司 | Air heater for a vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019002181A1 (en) | 2017-06-27 | 2019-01-03 | Elringklinger Ag | Heating system and process for manufacturing same |
| DE102018104602A1 (en) * | 2018-02-28 | 2019-08-29 | Elringklinger Ag | Heating system and method for its production |
| DE102020207875A1 (en) | 2020-06-24 | 2021-12-30 | Vitesco Technologies GmbH | Electric heating arrangement and electric heating device with such a heating arrangement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162276C5 (en) | 2001-12-19 | 2019-03-14 | Watlow Electric Manufacturing Co. | Tubular water heater and heating plate and method for their preparation |
-
2011
- 2011-12-28 DE DE201110057108 patent/DE102011057108A1/en not_active Withdrawn
-
2012
- 2012-12-27 CN CN 201220757366 patent/CN203368778U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107004454A (en) * | 2014-11-07 | 2017-08-01 | 韦巴斯托股份公司 | The equipment of electric heater unit for the method for the contact zone of the layer that manufactures electric heater unit and for motor vehicle |
| CN107004454B (en) * | 2014-11-07 | 2020-10-16 | 韦巴斯托股份公司 | Method for producing a contact region of a layer of an electric heating device and device for an electric heating device of a motor vehicle |
| CN108700333A (en) * | 2016-02-18 | 2018-10-23 | 韦巴斯托股份公司 | Oil-water heat exchanger is especially used for the internal combustion engine of motor vehicles |
| CN110678705A (en) * | 2017-05-24 | 2020-01-10 | 韦巴斯托股份公司 | Air heater for a vehicle |
| CN110691949A (en) * | 2017-05-24 | 2020-01-14 | 韦巴斯托股份公司 | Electric heater, method for producing and operating such an electric heater, and use of such a heater |
| CN110691949B (en) * | 2017-05-24 | 2022-04-08 | 韦巴斯托股份公司 | Electric heater, method for producing and operating such an electric heater, and use of such a heater |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011057108A1 (en) | 2013-07-04 |
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