CN103889075B

CN103889075B - Electric heater unit

Info

Publication number: CN103889075B
Application number: CN201310711901.7A
Authority: CN
Inventors: M·魏斯; O·哈吉祖基奇
Original assignee: Jie Wen Co ltd
Priority date: 2012-12-21
Filing date: 2013-12-20
Publication date: 2016-02-10
Anticipated expiration: 2033-12-20
Also published as: DE102012025156A1; CN103889075A; JP2014123566A; JP5907942B2

Abstract

The present invention relates to a kind of electric heater unit (44), it has at least one resistance device (45) and contacts engaging means (46) with at least one, wherein, at least one contact engaging means (46) has at least one conduction stock (55), described conduction stock has core stock (52), described core stock is made at least partially from copper and has coating, and described coating covers described core stock (52) at least in part.The present invention advises, described coating is embodied as conductive jacket (54), and described core stock (52) is electrically connected with at least one heating resistor (70) by described conductive jacket.

Description

Electric heater unit

Technical field

Theme of the present invention is the electric heater unit according to claim 1 preamble.

Prior art

Be well known that, graphite granule is embedded into plastics group in and be used as heating resistor.In addition be well known that, in the heating element of weaving, use carbon filament as heater.Also be well known that, in woven face that wire is laid in and be used as heating element.Disclose there is noble metal coating wiry for anticorrosion, but expensive.Coating wiry protection it from corrosion, but make its electric insulation and cause at Kong Chu too high corrosion-damaged.In addition, the wear resistence of described coating is usually also not fully up to expectations.

Electric heater unit suffers more and more higher security requirement, high cost pressure and more and more diversified application scenario.Therefore there is the demand for following technical proposals, described technical scheme meets these requirements as much as possible.

Summary of the invention

Suggested the technical scheme of the feature with claim 1 under this background.Other advantageous configuration can be drawn by other claim and following specification.This heater has contact engaging means, though the anticorrosion of described contact engaging means, cost low, be convenient to contact connect and porose in the coating when also reliable.

Below illustrate details of the present invention.These embodiments can make easy to understand of the present invention.But they only have exemplary characteristic.Certainly, within the scope defined by dependent claims of the present invention, also can remove, change or supplement indivedual or multiple described feature.Certainly, also the feature of different execution mode can be combined with each other.Importantly, the solution of the present invention is implemented substantially.If a feature should be satisfied at least partly, then this also comprises, and this feature is satisfied completely or substantially completely.At this, " substantially " especially means, this enforcement can reach desired effect with visible degree.This especially can mean, corresponding feature is met by least 50%, 90%, 95% or 99% ground.If give minimum, then can certainly use more than this minimum.Illustrate as long as no other, then interval comprises its boundary point.

Accompanying drawing explanation

Below with reference to:

Fig. 1 is the end view of the vehicles with heater 44, partly longitudinally dissects.

Fig. 2 is the vertical view of the heater in Fig. 1.

Fig. 3 is the perspective view of the electrode conductor of dissecting of heater in Fig. 2,

Fig. 4 is the perspective view of the uniconductor of dissecting of electrode conductor in Fig. 3.

Embodiment

The present invention relates to the heating of at least one object to be heated 100.Object refers to all by human contact or the object or the surface that have ice hazard especially, the interior arrangement object, door, window, ceiling, chaise longue, pad etc. of such as airplane load face, transmitter, refrigerator, family or transatmospheric vehicle, water transportation instrument, landway traffic tool, track vehicle or be such as according to interior arrangement object, such as transfer 101, steering wheel 102, panel board 103, handrail, door lining 105, armrest, vehicles top, pad, the cover of the motor vehicle 99 of Fig. 1 or be seat 110 as here at this.

At least one object 100 to be heated has one or more surface 10 to be heated.Preferably at least one surface 10 to be heated preferably has at least one cover 2 as in the fig. 1 embodiment.Cover referred to herein as the layer of any type, cover bottom object or layer compound, and it covers object to be heated at least in part; Particularly this planar component as association to be arranged on object to be heated and/or substantially can associatedly from the component that described object gets loose.

At least one object 100 to be heated has preferred one or more pad 3.Described pad is preferably embodied as foaming body and is such as seat, steering wheel or part like this.

The object 100 to be heated by least one and at least one surface 10 to be heated configure to one or more aircondition 4, to carry out temperature adjustment and/or air conditioning to it.

At least one aircondition 4 has preferably at least one electric heater unit 44.This heater is preferably embodied as flexible, flexible flat heating element.It such as can be put in the pad of device object, such as seat 110 as built-in part.

Heater 44 has a preferably bearing part 8, heating resistor with contact engaging means such as by sewing, bonding etc. to be fixed on described bearing part.

Preferably stock shape ground, netted ground and/or planar ground form and are made up of yarn fabric, knotwork, knitted fabric, braid, nonwoven fabrics, flexible thermoplastics, gas permeable material and/or (punching press or have knot) film at least in part described bearing part 8 substantially.It also can partially or substantially completely at least be consisted of a part for object 100 to be heated, and such as, in, rig body or surface 10 to be heated are at least partially, such as cover 2.

At least one heater 44 has preferred one or more resistance device 45, to convert electrical energy into heat energy, such as multiple heating resistor 70, they are in the form of the silk or stainless steel heater strip with carbon fiber.

Heater 44 has preferred one or more contact engaging means 46, to be applied to by voltage at least one resistance device 45.

Preferred described heater 44 has two or more contact engaging means 46, and their spaced turning up the soil are at least partially disposed on a resistance device 45.Preferably they adjacent edges along resistance device 45 arrange and such as by knitting, sew or be adhesively fixed on resistance device.They can have the profile of microscler stretching and indentation and/or linear (Fig. 2) extend substantially.They preferably arrange roughly in parallel to each other and are connected with current source/voltage source by connecting wire in one end thereof respectively.

At least one contact engaging means 46 has one, preferred multiple contact conductor 5.The preferred strand of described contact conductor and arranging along the lateral edges in face to be heated crankyly.Preferably three to seven contact conductors are arranged in contact engaging means 46 abreast, to be delivered to resistance device 45 from contact engaging means 46 by the contact point of electric current by larger amt.Described contact conductor meets object and requires that ground arranges abreast in one plane and is such as fixed on smooth bearing part for this reason.They preferably conduct electricity in its surface at least in part, namely not electric insulation, connect current problems when causing difficulty and avoid the pore sealing of conductive jacket 54 too little to the contact of heating resistor 70.

Contact conductor 5 can have one or more contact conduct stock 50, preferably more than five, preferably more than 50, preferably more than 100, preferably more than 300.One, multiple or substantially all contacts conduction stock 50 has at this and is less than 1mm, is preferably less than 0.1mm, is preferably less than the thickness of 10 μm.

Stock is interpreted as the formation of longitudinal, and its length dimension substantially exceeds the size of its cross section.Two dimensions of preferred described cross section have roughly similar size.Preferred described formation is the elasticity of flexure.Filament shape is interpreted as at this: by the object that describes like this by short or long fiber or be made up of monofilament lines or multifibres line.Preferred at least one personal share be less than at least one dimension cross-sections size 1mm, better 0.1mm, better 10 μm.

Can meet object to be required of, contact conductor 5 has two or more different contact conduction stock 50.Can arrange, they have material different from each other and/or different sizes.

Preferably at least one contact conductor 5 has at least one and supports stock 58, and its stability at least in mechanical load parameter such as tensile strength, notch impact toughness, the reversed bending fatigue limit, abrasion resistance or abrasion resistance is greater than the stability of at least one other contact conduction stock 50.Preferred resistance at least with factor 1.5, preferably with 2.5 or 10 increase.Support stock 58 to be made up of metal, plastics and/or other material.

Can meet object to be required of, contact conductor 5 has at least one conduction stock 55 that can conduct electricity at least in part, so that along described conduction stock conduction current.Conduction stock 55 are the stocks that can conduct electricity at least in part, one or more part that is filamentous, that can conduct electricity at least in part extends in described stock, preferably substantially along described stock longitudinal direction and/or spirally around one support stock 58 extend.Conduction stock 55 oneself can be made up of multiple stock.Preferably substantially all stocks of a contact conductor 5 are all conduction stocks 55.

Preferably contact one of conductor 5, multiple or substantially all conduction stocks 55 are made up of copper or copper alloy at least in part, are preferably substantially made up of copper or copper alloy.

Preferably at least one conduction stock 55 has at least one core stock 52 that can conduct electricity.It is preferably made up of metal, preferably copper or copper alloy at least in part.

Preferred conduction stock 55 has the coating in conductive jacket 54 form of conducting electricity at least in part; it is at least partially disposed on the surface of conduction stock 55; its protective core stock 52 is from corrosion; its mode is, it covers core stock surface at least in part and it makes core stock 52 with its surrounding environment, is particularly electrically connected with one or more heating resistor 70.

Preferred conductive jacket 54 at least has chemical inactive surface under common environmental condition in the part on its surface, at least on its surface that (with reference to core stock) points to outwardly.Chemistry torpescence means inertia, that is, even if also do not changed under the effect of corrosive substance by the object described like this, does not at least also change when following substances such as sweat, carbonic acid or tartaric acid.Described material also can so be selected, and makes it or is not corroded, or forms the corrosion product that can conduct electricity.

Conductive jacket is made up of the material that can conduct electricity at least in part.It can be made up of homogeneous materials.But it also can have the conductive particles be made up of the material that can conduct electricity, described particle is embedded in the texture such as with rubber, PU, artificial resin, adhesives, varnish and/or plastisol share.

If conductive jacket 54 and/or its part that can conduct electricity there is no the metal be in elementary state, at least do not have inexpensive metal, then also etching problem can be avoided thus.In addition, silver-plated measure that is expensive, sealed hair pore becomes unnecessary.That is, if conductive jacket 54 or its conduction part are made up of carbonaceous material and/or one or more metal oxides at least in part, then highly beneficial.Specially suitable especially carbon nano-tube (CNT), carbon fiber, carbon black, carbon, the plastics that self can conduct electricity, carbon black-filled lyocell (Lycocell), graphite, aromatic particularly heterocyclic compound as azole and pyrroles and its polymer and direct polymerization PEDOT/PSS on the metal surface.

Advantageously, the intermediate layer 59 of oxide skin(coating) such as Cu oxide form is set between conductive jacket 54 and core stock 52.Preferred described intermediate layer is made up of the oxide of the material of core stock 52 at least in part and described oxide and/or described intermediate layer can be conducted electricity.Which thereby enhance anticorrosive effect.Described intermediate layer 59 should be capillary seal substantially.This point can be realized when intermediate layer, conductive jacket 54 and/or texture are the results of electrolyting precipitation process.

Fibrous particle is particularly suitable for as conductive particles 7, because it allows when being embedded in texture to improve current conduction capability.Specially suitable is carbon nano-tube, gnf or carbon filament.Which ensure that good conductive capability, mechanical robustness and corrosion resistance.Carbon nano-tube (CNT) is that diameter is about 1-50nm and length is up to the tubular carbonaceous formation of several millimeters.The conductive capability of described pipe is metal shape, partly leads or the superconduction when low temperature.CNT has 1.3-1.4g/cm ³density and the tensile strength of 45,000,000,000 Pascals.Current carrying capacity is about 1000 times of copper cash.Capacity of heat transmission is at room temperature 6000W/m*K.Gnf is the carbon fiber (solid) that diameter is less than 1 μm.

List of numerals

2 covers

3 pads

4 airconditions

5 contact conductors

7 conductive particles

8 bearing parts

10 surfaces to be heated

44 heaters

45 resistance devices

46 contact engaging means

50 contact conduction stocks

52 core stocks

54 conductive jacket

55 conduction stocks

58 support stock

59 intermediate layers

70 heating resistors

99 motor vehicles

100 objects to be heated

101 transfers

102 steering wheels

103 panel boards

105 linings

110 seats

Claims

1. an electric heater unit (44), it has at least one resistance device (45) and contacts engaging means (46) with at least one, wherein, at least one contact engaging means (46) has at least one conduction stock (55), described conduction stock has core stock (52), described core stock is made at least partially from copper and has coating, described coating covers described core stock (52) at least in part, it is characterized in that, described coating is embodied as conductive jacket (54), described core stock (52) is electrically connected with at least one heating resistor (70) by described conductive jacket,

Described conductive jacket (54) or its part that can conduct electricity are not in the metal in elementary state,

Described conductive jacket (54) has the part that can conduct electricity, and it has carbon nano-tube (CNT), carbon black, carbon, microfibre, graphite fibre and direct polymerization PEDOT/PSS on the metal surface, pyrroles or azole.

2. heater according to claim 1 (44), is characterized in that, arranges the intermediate layer (59) of oxide skin(coating) form between described conductive jacket (54) and described core stock (52).

3. heater according to claim 2 (44), is characterized in that, described intermediate layer (59) are made up of the oxide of the material of described core stock (52) at least in part.

4. the heater (44) according to Claims 2 or 3, is characterized in that, described intermediate layer (59) or metal oxide can conduct electricity.

5. the heater (44) according to Claims 2 or 3, is characterized in that, described intermediate layer (59) are pore sealing substantially.

6. the heater (44) according to Claims 2 or 3, is characterized in that, described intermediate layer (59) or described conductive jacket (54) are the results of electrolyting precipitation process.

7. vehicle interior component and/or an interior arrangement object, is characterized in that, it is provided with at least one heater (44) any one of aforementioned claim 1-6.

8. vehicle interior component according to claim 7 and/or interior arrangement object, it is characterized in that, described vehicle interior component and/or interior arrangement object are seat (110), cover (2), steering wheel (102), lining (105) and/or pad (3).

9. vehicles, is characterized in that, it is equipped with at least one heater (44) any one of aforementioned claim 1-6.

10. the vehicles according to claim 9, is characterized in that, the described vehicles are motor vehicle (99).