CN106105386A - Mixing electrical heating cable - Google Patents
Mixing electrical heating cable Download PDFInfo
- Publication number
- CN106105386A CN106105386A CN201580013554.8A CN201580013554A CN106105386A CN 106105386 A CN106105386 A CN 106105386A CN 201580013554 A CN201580013554 A CN 201580013554A CN 106105386 A CN106105386 A CN 106105386A
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- Prior art keywords
- group
- wire
- wiry
- heating cable
- electrical heating
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Classifications
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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
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
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- Resistance Heating (AREA)
Abstract
A kind of electrical heating cable, including be twisted the wire of two or more strands of shaping or the stranded shaping of stranding.At least one in Gu includes first group of wire and second group of wire, both for when heat cable in use when conduction electric current and generate heat.First group of wire wiry includes steel layer.Second group of wire wiry includes steel layer.The wire of second group has annealing microstructure.
Description
Technical field
The present invention relates to include serving as the electrical heating cable wiry of heater when electric current is transmitted over cable
Field.
Background technology
Including electrical heating cable wiry is known.Important parameter for heating cable is that it is with ohm/cable
The resistance of length meter meter, because it determines to be thermally generated.Depend on application, it is desirable to for the resistance in terms of ohm/length of cable rice
Particular value.
For many application, for example for car seat heating application, the flexing fatigue life of heating cable (or is scratched
It is Qu Shouming) important.Many patent documents relate to have for example by means of heating cable uses wiry suitably
Select the heating cable of the high flex fatigue realizing.
EP1337129 discloses a kind of electrical heating elements for seat and the heating unit of steering wheel.Heating element heater bag
Include at least one conductor with at least one core coating line (core-coated wire).Coating includes that steel and core include copper
Or copper alloy, or coating includes that copper or copper alloy and core include steel.
Including many different types of mixing electrical heating cables wiry are known.
EP1705957 discloses a kind of heater wire for car seat heating application with high flexing fatigue properties
Cable.Heating cable has the silent partners of the interior stock winding around conduction.The electrical conductivity of interior stock is less than the electrical conductivity of silent partners.Interior stock is by having
The material having and making tensile strength high compared with the material that silent partners is used and/or high alternately buckling strength is made.Interior stock
For example can be made up of stainless steel wire and silent partners can be made up of copper wire.
DE10137976A1 discloses a kind of heating cable for car seat heating.Heating cable includes being compiled to one
The combination of the single line of the several types rising.The single line of single type has the desired electrical characteristics for setting heating cable
Different electrical properties.At least some in the type of single line is at resistivity (specific electrical resistance)
Aspect is different.Copper (or copper alloy) line is particularly advantageous with the combination of aluminium (or aluminium alloy) line.
WO2012/136418A1 (and corresponding U.S. Publication US2014/0008351A1) discloses one and includes seven
And the heating cable of the metal monofilament of the first kind between 200.The metal monofilament of the first kind have scope from 30 μm to
The diameter of 100 μm.The metal monofilament of the first kind has almost circular cross section.The metal monofilament of the first kind includes having
Steel layer less than the chromium content of 10 weight %.Heating cable have when at 20 DEG C measure when scope at 0.1ohm/m and 20ohm/
Resistance between m.Preferably heating cable includes of the metal monofilament of Second Type or the metal monofilament of Second Type
Or multiple bundle；Wherein Second Type is different from the first kind in composition.
DE19638372 disclose a kind of have include at least stainless steel wire and copper cash conductor element for sensor
Lead-in wire.In the range of by cross section percentage in conductor element for the stainless steel wire is set in 30% to 70%, having can
Can obtain and there is low resistance and the lead-in wire of high flexibility, tensile strength and elasticity.
Always do not recommend the use of the copper cash for heater wire or copper wire, because copper has too high electrical conductivity, cause adding
The high conductivity of hot line cable.Therefore, when requiring heating cable relatively low conductivity, the use of copper cash or copper wire is not recommended.Copper cash
With copper wire, there is low flexing fatigue properties.
Electrical heating cable can connect by means of crimp connector.Such crimp connector may be used for heater wire
Cable is connected to another cable, the cable for example supplying electric current.Heating cable and supply lines such crimping connect for example by
It is described in DE202004018709U1 and US3324441.Alternately, heat cable and can be individually crimped on crimping connection
In device and electrical connections is as realized by means of plug or the contact pin of crimp connector.
Problem is for the scope of electrical heating cable with the high flexible life-span, and mechanical crimp connects especially
Can not can not reliably carry out suitably when heating cable coverlet and being solely crimped in crimp connector.
Content of the invention
The main purpose of invention is to provide a kind of has outstanding flexing fatigue properties and can be by means of mechanical crimp
Connect the heating cable to easily and reliably connecting.
Such heating cable that specific purpose is to provide in the resistance range of 0.1ohm/m to 5ohm/m.
First aspect according to invention provides a kind of electrical heating cable.Electrical heating cable includes being twisted shaping or stranding strand
The wire of two or more strands of synthesis shape (cabled together).In Gu at least one, preferably at least two and
More preferably each includes first group of wire and second group of wire, and two groups of wires are all used for working as heating cable in use
When conduction electric current and generate heat.First group of wire wiry includes steel layer.Second group of wire includes steel layer.Second group
Wire has annealing microstructure, and the steel layer wiry involving second group has annealing microstructure.Stock is defined as
Being parallel to each other and/or being twisted to the combination of silk together, the thus untwisting of stock causes parallel silk.
First group of wire and second group of wire will when heat cable in use when conduct power and raw to heat
Become to have contribution.
The heating cable of the present invention has outstanding flexing fatigue life.It can to easily and reliably crimp, Qi Zhongsuo
Wire is had suitably to be crimped.This is the result of the existence wiry of second group with annealing microstructure.Second group
Wire compressed during crimping, it is ensured that crimping connect wire between good electrical contact.Crimping connects
Quality control demonstrates that having carried out suitable crimping connects.Additional benefits is that the contact resistance that crimping connects is relatively low, and yes
Compared with the similar crimping connection of other prior aries heating cable with high flex fatigue.Low contact resistance is beneficial,
Because it avoid owing to when electrical heating cable in use when at crimp connector be thermally generated crimping connect mistake
Heat.
Two different types of combinations wiry in a personal share are placed on additional load in the production of stock.By stock
During combination (for example, when when twisted filament or when before sth. made by twisting stock feeding difference silk together), two different types of wires are necessary
It for example is provided from the drum unwinding of each of which and is processed in the state of keeping and be in suitable tension force.Such place
Reason owing to their different engineering properties compared with the process wiry of only one type more tired
Difficult.
Preferably, the resistivity wiry higher than first group for the resistivity wiry of second group.
In a preferred embodiment, the equivalent diameter wiry of first group is with maximum 20%th, preferably at most 10% and more
Preferably at most 5% is different from the equivalent diameter wiry of second group.Equivalent diameter is the metal having with being not necessarily circle
The diameter of a circle of the cross section identical surface areas of silk.
Preferably, first group of silk wiry and second group of silk wiry are via twisting with the fingers, be wound around or stranding is stranded is combined
In stock.
In a preferred embodiment, first group of silk includes the silk between 5 and 150.More preferably beyond 5, for example super
Cross the 10th, for example more than the 20th, for example more than the 30th, for example more than the 50th, for example more than the 70th, for example more than the 90th, for example more than 100.More excellent
Selection of land is less than 150, and e.g., less than the 125th, e.g., less than the 100th, e.g., less than the 80th, e.g., less than the 65th, e.g., less than 50.
Preferably mixing electrical heating cable has in the range of 0.1ohm/m to 5ohm/m, more preferably at 0.1ohm/m
To resistance in the range of 3ohm/m.
For first group of silk wiry and/or for second group of silk wiry preferably 35 μm with 100 μm it
Between, the filament diameter more preferably between 50 μm and 80 μm.
Heating cable can have corrosion-resistant sheath.Corrosion-resistant sheath can include polymeric layer.Preferred polymeric layer
Include fluorine in the polymer, cause excellent corrosion resistance and heat-resisting quantity.It is further preferred that heating the corrosion-resistant of cable is protected
Set includes perfluoro alkoxy (perfluoroalcoxy) (PFA), FEP (perfluoroethylene-propylene), TPE-C, PPS (polyphenylene sulfide)
Or MFA (perfluoro-methyl alkoxyl (perfluoromethylalcoxy)).The heating cable of such embodiment with only by hard draw
Wire drawing is made and is had the heating cable of such corrosion-resistant sheath and compares and do not demonstrate combustion after the stripping of insulating coating
Burn, it is simple to the crimping of heating cable.
In a preferred embodiment, together with first group of wire wiry is mixed in second group of wire wiry.
With regard to the wire of the wire of first group and second group be mixed in together with mean first group of wire wiry in stock
It is distributed between second group of wire wiry, and second group of wire wiry is distributed on first group in stock
Between wire wiry.
Preferably, first group of wire wiry has and draws microstructure (end-drawn eventually
microstructure).Such embodiment demonstrates the outstanding crimping providing in crimp connector.
Preferably, in the cross section of heating cable, the accumulation cross section wiry of second group is first and second groups
Combined accumulated cross section wiry at least 25%, more preferably at least 30% and even more preferably at least
40% and preferably less than 70%.
Preferably, second group wiry with ohm*mm2The resistivity that/m expresses is the resistance wiry of first group
At least 2 times of rate high, and more preferably at least 3 times, more preferably at least 3 times and more preferably at least 10 times.
The illustrative metal silk made by high-carbon steel with the coat made by zinc has 0.202ohm*mm2/ m's
Resistivity.
The illustrative metal silk made by mild steel with the coat made by zinc has 0.110ohm*mm2/ m's
Resistivity.
The illustrative metal silk made by mild steel with the coat made by tin has 0.124ohm*mm2/ m's
Resistivity.
Stainless steel wire has 0.682ohm*mm2The resistivity of/m.
Including the illustrative metal silk of low-carbon steel core and copper clad has 0.043ohm*mm2The resistivity of/m.
Including the illustrative metal silk of copper core and stainless steel cladding has 0.046ohm*mm2The resistivity of/m.
Preferably, heating the conductance of cable is to be led by first group wiry more than the 75%th, preferably more than 85%
Electricity rate determines.
In the exemplary embodiment, first group of steel layer wiry is low-carbon (LC) or high-carbon steel layer, preferably wraps
Include the corrosion resistant metal layer (for example, zinc or nickel) around low-carbon (LC) or high-carbon steel layer.
In the exemplary embodiment, first group of wire wiry includes than first group of steel layer wiry
The layer of metal or metal alloy of the high conductance of conductance.In such embodiments, preferably first group wiry
The steel layer of silk is stainless steel layer or low carbon steel layer.
Preferably, the layer of the metal or metal alloy of higher than the conductance of steel layer conductance is concentric with steel layer.Compare steel layer
The layer of metal or metal alloy of the high conductance of conductance can be layers of copper or copper alloy layer.
For example, first group of wire wiry can include copper or copper alloy core and around it preferably circumferentially
Stainless steel layer.Preferably, such wire has and eventually draws microstructure.
Another example wiry of first group is to include steel core (for example, low-carbon steel core) and around its copper or copper alloy
Layer preferably circumferentially.Such silk is referred to as copper clad steel wire.Preferably, these wires have and eventually draw microcosmic
Structure.
In a preferred embodiment, second group of wire wiry is stainless steel wire, for example, have polygonal crosssection shape
Shape, for example by bundle drawing (bundle drawn), or for example there is almost circular cross section, for example by single drawing
(single end drawn)。
In the exemplary embodiment, second group of steel layer wiry is low-carbon (LC) or high-carbon steel layer, preferably wraps
Include the corrosion resistant metal layer around low-carbon (LC) or high-carbon steel layer.
For the present invention, with regard to high-carbon steel mean to have carbon content between 0.30% and 1.70% for the weight and
Steel grade less than the chromium content of weight 10%.For the present invention, it is preferred to use have weight 0.40% with
The high-carbon steel grade of the carbon content between 0.95%, even more preferably still uses and has weight between 0.55% and 0.85%
The high-carbon steel grade of carbon content.High-carbon steel grade can comprise alloying element；But for the present invention, high-carbon steel grade is excellent
Selection of land has the chromium content less than 2.5% weight and the nickel content less than 1% weight, the preferably less than nickel of 0.1% weight contain
The nickel content of amount, even more preferably less than 0.05% weight.And the chromium content of preferably less than 1% weight.
The use of high-carbon steel grade has many additional benefits.Including the intensity wiry of high-carbon steel layer is high, especially
If wire has and draws microstructure eventually.Result is to include that the heating cable of such silk has high intensity and high flexure
Life-span.
For the present invention, mean wherein to be likely to all of unit in addition to silicon and manganese with regard to mild steel
Element has less than 0.50% weight, e.g., less than 0.20% weight, the steel alloy of content of e.g., less than 0.10% weight.For example
Silicon exists with the amount of maximum 1.0% weight, such as maximum 0.50% weight, such as 0.30% weight or 0.15% weight.For example
Manganese exists with the amount of maximum 2.0% weight, such as maximum 1.0% weight, such as 0.50% weight or 0.30% weight.For this
For invention preferably, the scope of carbon content up to 0.20% weight, such as scope up to 0.06% weight.Minimum carbon content can
To be about 0.02% weight.In a more preferred embodiment, minimum carbon content can be about 0.01% weight.Mild steel group
Become mainly there is ferrite or pearlite matrix and mainly have single-phase.There is no martensite in ferrite or pearlite matrix
Phase, bainite phase or carburizing phase.
For the use in first group or second group of wire, low-carbon (LC) or high carbon filament are preferably provided with corrosion-resistant coating
Layer.Corrosion-resistant coat can for example select from the group being made up of zinc, tin, silver, nickel, aluminium or its alloy.Preferably, corrosion-resistant
Metal coating is between 1% weight wiry and 10% weight.It is highly preferred that between 2 weight % and 6 weight %.Very
To more preferably between 3 weight % and 5 weight %.Because metal coat is low on percentage by weight wiry,
So not interfering with the resistance of silk to significant degree.Metal corrosion-resistant coating on steel wire has an advantage that steel wire is preferably resistance to
Get rusty and corrode.This heats the production process of cable and for during production process and at heater wire for the present invention
It is interesting for the storage of the semi-finished product during the installation of cable and use.
Particular example is the use of the nickel coating on steel wire: coat is between the 2% and 6% of the weight of steel wire.More excellent
Selection of land, nickel coating is between the 3% and 5% of the weight of steel wire.For the particular example of nickel coat be include mild steel or
Including on the steel wire of high-carbon steel.
Another particular example is the use of the spelter coating on steel wire；Coat be steel wire weight 0.5% and 5% it
Between.More preferably spelter coating is between the 1.5% and 2.5% of the weight of steel wire.For the particular example of zinc coat be
Including mild steel or include on the steel wire of high-carbon steel.
Preferably, second group of wire wiry is produced by means of single drawing.
The example of first and second groups of preferred compositions wiry is
-first group of wire being made or made by mild steel by high-carbon steel；Preferably have and draw microstructure eventually；And
Preferably there is corrosion-resistant coat, for example made by zinc or nickel；With there is being made by stainless steel of annealing microstructure
Second group of wire combination.Preferably, second group of stainless steel wire wiry is single drawing.
-including first group of wire of steel core (preferably low-carbon steel core) and copper or copper alloy clad, core preferably has
Draw microstructure eventually；With the second group of wire combination made by stainless steel with annealing microstructure.Preferably, second group
Stainless steel wire wiry is single drawing.
-including copper or copper alloy core and stainless steel cladding or first group of wire of layer, silk preferably has and draws microcosmic eventually
Structure；With the second group of wire combination made by stainless steel with annealing microstructure.Preferably, second group wiry
Stainless steel wire is single drawing.
-including first group of wire of steel core (preferably low-carbon steel core) and copper or copper alloy clad or layer, silk is preferably
Have and draw microstructure eventually；With the second group of wire combination made by high-carbon or mild steel with annealing microstructure；And
And preferably there is corrosion-resistant coat, for example made by core or nickel.
-including copper or copper alloy core and stainless steel cladding or first group of wire of layer, silk preferably has and draws microcosmic eventually
Structure；With the second group of wire combination made by high-carbon or mild steel with annealing microstructure；And preferably have
Corrosion-resistant coat, for example made by core or nickel.
-there is the first group of wire made by mild steel drawing microstructure eventually；And preferably there is corrosion-resistant painting
Coating, for example made by zinc or nickel；With the second group of wire combination made by mild steel with annealing microstructure；And
Preferably there is corrosion-resistant coat, for example made by zinc or nickel.
-there is the first group of stainless steel wire drawing microstructure eventually；With second group of stainless steel wire with annealing microstructure
Combination.The stainless steel wire of first group can e.g. single drawing；The stainless steel wire of second group can e.g. single drawing
's.
A second aspect of the present invention is a kind of such as the mixing electrical heating cable in the first aspect of invention and crimp connector
Assembly, wherein mix electrical heating cable be crimped in crimp connector.
In preferred assembly, crimp connector can be in the end part with power cable of the end part not heating cable
Overlapping in the case of, preferably via except crimping connect in addition to alternative connection, for example via contact pin or plug connector quilt
It is connected to power supply.
Preferred assembly includes power supply, wherein crimp connector in the end part not heating cable with power cable
End part overlapping in the case of, preferably via except crimping connect in addition to alternative connection, for example via contact pin or plug company
Connect device and be connected to power supply.
Preferred assembly includes power supply, wherein crimping be connected in crimp connector to have the end part of heating cable with
It is connected to power supply in the case of the end part of power cable overlapping.Such power cable can advantageously comprise copper wire.
Crimping can perform in the way of there are two crimping simultaneously, and cable crimping and (if insulation) are absolutely
Edge crimps.That wire crimp is formed between heating cable and terminal (crimp connector) is mechanical-electrically connect.For much should being used for
Saying, connection must be bubble-tight, it is meant that should not have space between the silk and terminal (crimp connector) of heating cable,
Because may be corroded by such space.
There is the crimping of several type and can be used for inventing.Example be B-crimping and O crimping, the title wherein crimping from
Crimping shape and obtain.
The Hybrid Heating cable of the present invention can for example be used in car seat heating system and in industrial heating systems.
Brief description
Fig. 1 illustrates the example of the heating cable according to the present invention.
Fig. 2 and Fig. 3 illustrates the example that the crimping of the heating cable including the present invention connects.
Detailed description of the invention
Fig. 1 illustrates the example of the heating cable 105 according to the present invention.7 stocks 110 wiry are at the first twisting operation
In be twisted.In the second twisting operation, the stock 110 of 10 such twisting twists into the line of the external diameter with 1.60mm together
Cable.Cable is extruded and is coated with PFA coat and the 120th, for example has a wall thickness of 0.22mm.7 stocks 110 wiry include first
Group wire, wherein this group is by having copper core (the wire weight of 36%) and stainless steel layer (the metal level weight of 64%), example
Two wires 130 such as AISI 316L form.Preferably, stainless steel layer leap full circumferences wiry has substantially permanent
Fixed thickness.7 stocks 110 wiry include second group of wire, and wherein this group is by as single Drawing Stainless Steel Wire (example
Such as AISI 316L) five wires 140 form.
The wire of the wire of first group 130 and second group 140 respectively has the diameter of 75 μm.First group 130 and the
The wire of two group 140 has been randomly dispersed in stock 110, causes in two groups of stocks 110 wiry (with heating cable 105
In) intimate blend and leap two groups wiry heating cables homogeneous distribution.Stainless steel wire (silk of second group) has
Annealing microstructure；And the wire of first group can have and eventually draws microstructure.
The resistance of heating cable is 0.46 ohm/meter.
After peeling off insulating coating, heating cable is crimped in B-crimp connector and is connected to via plug
Power supply.Heating cable can be securely crimped in crimp connector.
Heating cable demonstrates outstanding flexing fatigue life.
According to the present invention such mixing electrical heating cable with similar heat cable but do not have second group of wire (thus
There is no single Drawing Stainless Steel Wire, such as AISI 316L) compare crimping connect contact resistance relatively demonstrate the present invention
Heating cable crimping connect contact resistance Billy with prior art cable crimping connect contact resistance much lower: with
The 30mOhm utilizing prior art heating cable compares, and the heating cable utilizing the present invention is 3mOhm.
Another example of mixing electrical heating cable according to the present invention includes being twisted 9 personal shares together, in 9 personal shares
Each is made up of 7 wires being twisted together.Three silks in each stock are corrosion protection coating and 60 μ with zinc
The high-carbon steel wire of the diameter of m.The wire of first group of silk has and eventually draws microstructure.Four silks in each stock be (second group of silk
Silk) it is the single Drawing Stainless Steel Wire of 60 μ m diameter.Single Drawing Stainless Steel Wire has annealing microstructure.Seven wires exist
Position in Gu is random.Hybrid Heating cable has the resistance of 2 ohm/meter.Heating cable is crimped on B-crimping and connects
It in device and is connected to power supply via plug.Heating cable can be securely crimped in crimp connector.
Another example of mixing electrical heating cable according to the present invention includes being twisted 11 personal shares together, in 11 personal shares
Each be made up of seven wires being twisted together.Five silks in each stock be have zinc corrosion protection coating and
The high-carbon steel wire (first group of wire) of the diameter of 60 μm.The wire of first group of silk has and eventually draws microstructure.In each stock
Two silks (silk of second group of silk) are the single Drawing Stainless Steel Wire of 60 μ m diameter.Second group of wire wiry has annealing
Microstructure.Seven wires position in stock is random.Hybrid Heating cable has the resistance of 1.2 ohm/meter.Heating
Cable is crimped in B-crimp connector and is connected to power supply via plug.Heating cable can be securely crimped in pressure
In connecting connector.
Another example of mixing electrical heating cable according to the present invention includes being twisted 6 personal shares together, in 6 personal shares
Each is made up of seven wires being twisted together.Two silks in each stock are the corrosion protection coatings and 60 with zinc
μm the mild steel wire of diameter；These silks define first group of wire.The wire of this first group of silk has and eventually draws microcosmic to tie
Structure.Five silks (silk of second group of silk) in each stock are the single Drawing Stainless Steel Wire of 60 μ m diameter.The wire of second group of silk
There is annealing microstructure.Seven wires position in stock is random.Hybrid Heating cable has 2.5 ohm/meter
Resistance.Heating cable is crimped in B-crimp connector and crimp connector is connected by the plug of crimp connector
To power supply.Heating cable can be securely crimped in crimp connector.
Another example of mixing electrical heating cable according to the present invention includes being twisted 12 personal shares together, 12
Each in Gu is made up of seven wires being twisted together.Two silks in each stock are the height of the diameter with 60 μm
Carbon steel wire (first group of wire).The wire of first group of silk has and eventually draws microstructure.Five silks (second group of gold in each stock
Belong to the silk of silk) it is the single Drawing Stainless Steel Wire of 60 μ m diameter.Second group of wire wiry has annealing microstructure.Seven
Position in stock for the individual wire is random.Hybrid Heating cable has the resistance of 1.7 ohm/meter.This is for comparing
Cable A.Heating cable is crimped in B-crimp connector and is connected to power supply via plug.Heating cable can be by reliably
Be crimped in crimp connector.
This mixing electrical heating cable mixes electrical heating cable (cable B) with another invention and compares.Hybrid Heating cable
Including be twisted 8 personal shares together, each in 8 personal shares is made up of seven wires being twisted together.In each stock
Five silks be the high-carbon steel wire (first group of wire wiry) of the diameter with 60 μm.The wire of first group of silk has
Draw microstructure eventually.Two silks (silk of second group of silk) in each stock are the single Drawing Stainless Steel Wire of 60 μ m diameter.Second group
Wire wiry has annealing microstructure.Seven wires position in stock is random.Hybrid Heating cable has
There is the resistance of 1.6 ohm/meter.
The performance of cable A and cable B compares with the performance of prior art cable (cable C), and cable C includes being added
Being twisted to 6 personal shares together, each in 6 personal shares is made up of 7 wires being twisted together；Wire is to have 60 μm
The high-carbon steel wire of diameter.Wire has and eventually draws microstructure.Cable C has the resistance of 1.6 ohm/meter.
The comparative experiments utilizing cable A and B (invention cable) and cable C has shown that:
-cable A and B can connect by means of crimping and be connected well；And cable C does not demonstrates out good crimping
Connect；With
The test of-flex fatigue demonstrates that cable A has 11791 life-spans being recycled to fatigue, and cable B has 7319 and follows
Ring is to the tired life-span；And cable C only has 5411 life-spans being recycled to fatigue.
Fig. 2 illustrates the example of crimp type terminal (or crimp connector) 200.It is crimped on according to the heating cable 205 of invention
In crimp type terminal 200.Crimp type terminal 200 has the contact pin 215 for contacting with power supply.Alternately, crimp type terminal can
To have plug rather than contact pin.
Fig. 3 illustrates the cross section 303 of the heating cable 310 being crimped in Type B crimp type terminal 317.As B pressure connection terminal
The alternative scheme of son, it is possible to use O type crimp type terminal.
Claims (14)
1. an electrical heating cable, including be twisted the wire of shaping or two or more strands of the stranded shaping of stranding,
At least one stock in-wherein said stock includes first group of wire and second group of wire, both for when described
Heating cable in use when conduction electric current and generate heat；
-wherein said first group of wire wiry includes steel layer；
-wherein said second group of wire wiry includes steel layer；
The described wire of wherein said second group has annealing microstructure.
2. electrical heating cable as claimed in claim 1, the described wire of wherein said first group has and draws microstructure eventually.
3. such as any one the described electrical heating cable in aforementioned claim, the electricity described wiry of wherein said second group
The resistivity described wiry higher than described first group for the resistance rate.
4. such as any one the described electrical heating cable in aforementioned claim, wherein include described first group wire and
In the wiry described stock of described second group, the described wire of described first group and the described wire quilt of described second group
Mix.
5. such as any one the described electrical heating cable in aforementioned claim, wherein in the cross section of described heating cable,
The accumulation cross section wiry of described second group is the combined accumulated cross section wiry of described first group and second group
At least 25%.
6. such as any one the described electrical heating cable in aforementioned claim, wherein said second group described wiry with
(ohm*mm2/ m) resistivity expressed is at least 2 times high of the resistivity described wiry of described first group.
7., such as any one the described electrical heating cable in aforementioned claim, the conductance of wherein said heating cable exceedes
75% is to be determined by the conductance described wiry of described first group.
8. the electrical heating cable as described in claim 1 to 7, the described steel layer described wiry of wherein said first group of silk is
Low carbon steel layer or high-carbon steel layer.
9. the electrical heating cable as described in claim 1 to 8, the described wire of wherein said first group of silk includes than described steel
The layer of the metal or metal alloy of the high conductance of conductance of layer.
10. electrical heating cable as claimed in claim 9, the metal of wherein high than the conductance of described steel layer conductance or gold
The described layer belonging to alloy is layers of copper or copper alloy layer.
The 11. electrical heating cables as described in claim 1-10, wherein said second group of described wire wiry is stainless
Steel wire.
The 12. electrical heating cables as described in claim 1-10, wherein said second group wiry described wiry described
Steel layer is low carbon steel layer or high-carbon steel layer, it preferably includes around the corrosion resistant metal layer of described low carbon steel layer or high-carbon steel layer.
Any one described mixing electrical heating cable in 13. 1 kinds such as aforementioned claim and the assembly of crimp connector, its
Described in mixing electrical heating cable be crimped in described crimp connector.
14. assemblies as claimed in claim 13, including power supply and wherein said crimp connector are not having described heater wire
It is connected to described power supply in the case of the end part with power cable of the end part of cable overlapping.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14161637.5 | 2014-03-26 | ||
| EP14161637 | 2014-03-26 | ||
| PCT/EP2015/054498 WO2015144406A1 (en) | 2014-03-26 | 2015-03-04 | Hybrid electrical heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106105386A true CN106105386A (en) | 2016-11-09 |
Family
ID=50439158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580013554.8A Pending CN106105386A (en) | 2014-03-26 | 2015-03-04 | Mixing electrical heating cable |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3123818B1 (en) |
| CN (1) | CN106105386A (en) |
| PL (1) | PL3123818T3 (en) |
| RS (1) | RS59829B1 (en) |
| WO (1) | WO2015144406A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018117942B4 (en) * | 2018-07-25 | 2020-02-06 | Leoni Kabel Gmbh | High performance heating cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10137976A1 (en) * | 2001-08-08 | 2002-11-21 | Leoni Draht Gmbh & Co Kg | Braid, especially for motor vehicle seat heating, has combination of several types of individual wires with different electrical properties for setting desired electrical characteristics |
| CN102057444A (en) * | 2008-06-06 | 2011-05-11 | Dlb德拉特和利曾有限责任公司 | Method for producing a braid, and also a braid comprising a plurality of wires |
| CN103460794A (en) * | 2011-04-04 | 2013-12-18 | 贝卡尔特公司 | Heating cable comprising steel monofilaments |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3131469A (en) * | 1960-03-21 | 1964-05-05 | Tyler Wayne Res Corp | Process of producing a unitary multiple wire strand |
| JPH09147631A (en) * | 1995-09-20 | 1997-06-06 | Denso Corp | Lead wire for detector |
-
2015
- 2015-03-04 CN CN201580013554.8A patent/CN106105386A/en active Pending
- 2015-03-04 WO PCT/EP2015/054498 patent/WO2015144406A1/en active Application Filing
- 2015-03-04 EP EP15707657.1A patent/EP3123818B1/en active Active
- 2015-03-04 PL PL15707657T patent/PL3123818T3/en unknown
- 2015-03-04 RS RS20191644A patent/RS59829B1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10137976A1 (en) * | 2001-08-08 | 2002-11-21 | Leoni Draht Gmbh & Co Kg | Braid, especially for motor vehicle seat heating, has combination of several types of individual wires with different electrical properties for setting desired electrical characteristics |
| CN102057444A (en) * | 2008-06-06 | 2011-05-11 | Dlb德拉特和利曾有限责任公司 | Method for producing a braid, and also a braid comprising a plurality of wires |
| CN103460794A (en) * | 2011-04-04 | 2013-12-18 | 贝卡尔特公司 | Heating cable comprising steel monofilaments |
Also Published As
| Publication number | Publication date |
|---|---|
| PL3123818T3 (en) | 2020-06-01 |
| EP3123818A1 (en) | 2017-02-01 |
| RS59829B1 (en) | 2020-02-28 |
| WO2015144406A1 (en) | 2015-10-01 |
| EP3123818B1 (en) | 2019-11-27 |
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Application publication date: 20161109 |
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