CN110012564A - The heater element of electric heater unit - Google Patents
The heater element of electric heater unit Download PDFInfo
- Publication number
- CN110012564A CN110012564A CN201811579561.6A CN201811579561A CN110012564A CN 110012564 A CN110012564 A CN 110012564A CN 201811579561 A CN201811579561 A CN 201811579561A CN 110012564 A CN110012564 A CN 110012564A
- Authority
- CN
- China
- Prior art keywords
- strip conductor
- electrical insulator
- heater
- supporting point
- heater element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000615 nonconductor Substances 0.000 claims abstract description 40
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000009751 slip forming Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002955 immunomodulating agent Substances 0.000 description 1
- 229940121354 immunomodulator Drugs 0.000 description 1
- 230000002584 immunomodulator Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0429—For vehicles
- F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
-
- 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
- H05B3/02—Details
- H05B3/03—Electrodes
-
- 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
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- 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
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/04—Positive or negative temperature coefficients, e.g. PTC, NTC
-
- 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
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to a kind of heater elements of electric heater unit, especially it is used for motor vehicles, with PTC element and be against two sides strip conductor and on the outside on be applied to strip conductor electrical insulator heater element, it is modified due to arranged below: at least one strip conductor is formed by the conducting element (1) for being provided with through-hole (14), the conducting element (1) has the discrete supporting point abutted with PTC element (4) and/or electrical insulator (8) in the short transverse of strip conductor, wherein idle space is filled in strip conductor by binder compound (12).
Description
Technical field
The present invention relates to the heater elements of electric heater unit.Particularly, the present invention is it is intended that illustrate a kind of motor vehicles
Electric heating device heater element.
The present invention is more particularly directed to a kind of heater element, with PTC element and be connected to two sides strip conductor and
The electrical insulator of strip conductor is applied on outside.
Background technique
This heater element is known from 1 916 873 A1 of EP.The document discloses a kind of embodiments, wherein
The strip conductor of terminal board form is covered with the insulating layer formed by ceramic wafer on the outside.
In the embodiment of 1 916 873 A1 of EP, ceramic wafer is together with the strip conductor of relevant terminal board form
Plastic frame is connected to by post forming (overmolding).
2 873 296 A1 of EP 1 768 457 A1 or EP discloses other solutions, and wherein electrical insulator is with multilayer
The form of insulating layer is integrated to the terminal board to form strip conductor.
Such configuration is of virtually following advantages: terminal board and insulator are joined together to form unit, and
Only the unit must be processed and be mounted in positioning framework.However, this causes from PTC element to the outer surface of discharge heat
Multilayered structure.The heat that each individually layer must will be discharged into outside penetrates.In each layer, for be discharged into outside
For heat, Conduction Interference may all occur.This resistance reduces efficiency, because PTC element is based on its self regulating charactoristic and exists
Any power current is not consumed when excessively heating.Therefore, the efficiency of PTC element reduces.
Summary of the invention
The problem to be solved by the invention is to provide the heater elements that a kind of efficiency improves.
To solve the above-mentioned problems, the present invention proposes, the conducting element by being provided with through-hole forms at least one bar shaped
Conductor, preferably two strip conductors, the conducting element have discrete supporting point, branch in the short transverse of strip conductor
Support point is usually provided in the form of the grid of rule, abuts PTC element and/or electrical insulator, wherein the sky in strip conductor
It is filled between emptying by binder compound.
Therefore, short transverse is interpreted as the direction extended perpendicular to the plane of strip conductor.Therefore, in strip conductor and
In the case where PTC element or the substantially planar overlapping (complete or partial) of electrical insulator, supporting point is in PTC element or electrical insulator
Direction on skip-forwards.
Through-hole is usually continuously formed in strip conductor in the height direction.
Therefore, supporting point is usually located in one or two parallel plane, i.e., the first adjacent with PTC element plane and/
Or second plane adjacent with electrical insulator.
The solution provides the advantage that conducting element abuts PTC element via discrete supporting point, so that it is guaranteed that will
Power current is safely introduced into PTC element.In addition, conducting element provides direct gold between PTC element and electrical insulator
Belong to contact, so as to improve from PTC element to the heat transfer on electrical insulator surface.Strip conductor is additionally provided with through-hole, so that bonding
Immunomodulator compounds can directly extend between the surface of PTC element and the surface of electrical insulator, to provide described two components
Between improved adhesiveness.Preferably, binder compound is substantially filled with offer between PTC element and electrical insulator
All idle spaces in strip conductor.Substantially, it means that it is possible for being filled up completely, even if the residue gas in compound
Bubble or stomata.
In addition, binder compound is also circumferentially around each supporting point.Therefore, connecing in PTC element and/or electrical insulator
Touch surface on top view in, discrete supporting point also by binder compound circumferentially around.Therefore, passing through strip conductor
Cross-sectional view in, cause binder compound to the fully enclosed of strip conductor, to realize conductive core and adhesive
The strong bonding between object is closed, and is achieved in the good connection between all components of heater element.
The remaining idle space that conducting element is preferably completely filled with binder compound provides the advantage that, even if leading
Electric device does not abut at the point of the two sides of electrical insulator or PTC element, and heat transfer is also good.Therefore, adhesive chemical combination
Object itself can have thermally conductive good particle, for example, alumina particle.
Conducting element can protrude past PTC element in edge and be provided with the contact for power current there
Lug or alternatively possible connection.Thus, for example, the cable for power current also can be directly connected to conductive silk screen.
Conductive silk screen can form the support surface for one or more PTC element.
In view of the particularly interesting construction of the heater element for air heater, multiple PTC element are usual
It is arranged one by one on the longitudinal direction of the heater element of elongated and each is contacted with conducting element.Therefore, may be used
Think that the electrical auxiliary heater for air heating is arranged heater element according to the present invention, such as from 1 768 457 A1 of EP
Or it is known in 2 873 296 A1 of EP.
Preferred embodiment in accordance with the present invention, conducting element by conductive silk fabrics, especially conductive wire mesh shape at.In the reality
It applies in example, power current is transmitted to PTC element and contacted with PTC element by strip conductor.
Conductive filament Netcom in the sense of the present invention is often formed by the conductive wire material for being made into net.Every conductive thread exists
It is alternately laid under or over the other conductive thread that the conductive thread extends.The conduction adjacent with conductive thread
Silk thread is accurately biased, so that being formed has net with the conductive thread of extension at right angles to each other, with shape cooperation and/or
The mode of force-fitting connects to each other to form a stable net.At the turning point of each conductive thread, i.e., in conductive thread
With at the position that the conductive thread that it extends contacts, the maximum height of net is generally yielded.The highest point determines conduction
The thickness of silk screen.Conductive thread can also be soldered.Compared with fixed terminal board, conductive silk screen is for introducing connecing for voltage
Lower temperature is generated at contact.This is an advantage, because lower temperature is introduced into electronic device when they are contacted
In.Therefore, compared with the prior art may accomplish, the electronic circuit for controlling heater element can move closer to
PTC element.
Alternatively, conducting element can also be formed by porous metal mesh or perforated sheet, which is rushed in this way
Pressure, so that it has the supporting point being used for against PTC element or insulating layer bent out from plate plane.Therefore, perforated sheet can
To lie in side, for example, electrical insulator is abutted, and in the other side, discrete supporting point is set, PTC member is exactly in
On part and it is in contact with it.Specific implementation (conductive silk fabrics, conductive silk screen, porous metal mesh or perforation regardless of supporting point
Piece), it is advantageous with the precise contact of PTC element for power current safely to be introduced to PTC element.Alternatively, perforated sheet
Can be stamped in this way so that it have to two plain bendings come out supporting point, thus conduction silk fabrics or
The configuration of porous metal mesh is the same-and it is resisted against on electrical insulator and PTC element by discrete supporting point on two side faces.
According to another embodiment of the present invention, the distance between PTC element and electrical insulator correspond to the thickness of conductive silk screen
Degree.At these thickest points of element, element is connected to electrical insulator (being preferably formed as rigid layer, such as ceramic layer)
Between the surface of PTC element, it is therefore preferred to have certain contact force, the contact force are by filling member with binder compound
Idle space in part applies pressure from outside when binder compound solidification, this is preferred come what is generated.It is first as a result,
Part is held securely against on the surface of PTC element and/or the inner surface of electrical insulator at the point of highest thickness.These point
On, not only there is good electrical contact, but also also by the direct heat transfer of element material.In particular, when in air heater
When middle use heater element according to the present invention, electrical insulator can also be formed by electrical isolation foil.
Conducting element can be made of metallic conduction silk or piece or the conductive filament made of other materials (such as carbon) or piece.
The conductive thread of different materials can also be connected in net or fabric, necessity on the one hand to guarantee conductive filament structure is complete
Property, on the other hand guarantee enough electric current conduction, finally guarantees alap weight.Thin conductive filament is configured to be advantageous.
The thickness of conductive filament should be 0.15mm (mesh 0.3mm) to maximum 0.3 millimeter (0.6 millimeter of mesh).By compression, thickness is reduced
About 30-50%, and rigidity increases.It is thereby possible to select bigger aperture, to save cost and material.Therefore, it is possible to use
Less binder compound, which improve heat to transmit.Conductive filament is thinner, and stability is lower.Thickness given above is finger pressure
The conductive filament of contraction 50%.The compression for increasing intensity can be between 30% and 50%.Conductive silk screen can be compressed by pressure.
Therefore, higher stability and lower deformability are generated.Conduction resistance and thermally conductive resistance are improved.
It is obvious that all gaps between electrical insulator and PTC element all should be by conducting element or binder compound
Filling.Therefore, strip conductor is preferably only made of both parts.
Heater element can include positioning framework in a way known, which keeps multiple PTC element
In predetermined position, as known in 2 873 296 A1 of EP 1 768 457 A1 or EP.As known in the prior art
, this positioning framework can cover and seal PTC element in edge.It, can be with side known per se in upside or downside
Formula provides plate shape electrical insulator, such as ceramic layer to positioning framework.Therebetween, there are conductive silk screens, with binder compound
Ceramic layer is adhered in PTC element together, and if desired, is adhered on positioning framework and connects to form list
Member.
Heater element can also undergo specific embodiment, public such as from 2 337 425 A1 of EP 1 872 986 A1 or EP
As knowing.Even if these in the prior art, strip conductor also is provided with insulating layer on the outside.For example, on the outside of strip conductor
This insulating layer be enforceable for the heater element in electric vehicle with high voltage operation.However, for motor vehicle
The electric heater unit of the electric pressing operation in such as 12V in, to avoid short circuit, electrical isolation is also advantageous.Here, originally
Invention due to strip conductor small thickness and make it possible good heat dissipation, and it is simple to provide cost-effective and structure
Strip conductor.
Heater element also can have EMC protection, such as with conductive foil.The fringe region of heater element can also be sealed
It is filled with and is sealed and encapsulates.
Detailed description of the invention
Further details and advantages of the present invention in the description taken together with the accompanying drawings of embodiment below to being shown.
Wherein:
Fig. 1 shows the perspective view of conductive silk screen；
Fig. 2 shows the cross-sectional views of a part of one embodiment across heater element；
Fig. 3 shows the top view of the alternate embodiment of conducting element, and wherein conducting element is porous metals web form；
Fig. 4 shows the cross-sectional view of the IV-IV line along Fig. 3；
Fig. 5 shows the top view of the alternate embodiment of conducting element, and wherein conducting element is perforation sheet form；With
Fig. 6 shows the cross-sectional view of the IV-IV line in Fig. 5.
Specific embodiment
Fig. 1 illustrates in perspective view the conductive silk screen with multiple conductive threads 2 being interlaced with one another.Each conductive thread 2
Extend at right angles to each otherly, and alternately on top of each other and under pass through each other so that net shape in the usual manner
At.
Fig. 2 shows the schematic cross sectional views of the embodiment with PTC element 4, PTC element 4 therein only partially by
It shows, which is provided with metallization on its surface 6 in the usual manner.Conductive silk screen 1 is against PTC element 4
On the surface 6, and it is supported on two conductive threads 2 and intersects and at point those of adjacent to each other.For electrical insulator, one
Corresponding abut is formed on the opposite sides, and electrical insulator is ceramic slab format and is identified with appended drawing reference 8.Due to each conduction
The braided configuration of silk thread 2, these conductive threads are being contacted with the inner surface 10 of electrical insulator 8 or with the surface 6 of PTC element 4
At each point, extend in the direction that each apparent surface 6,10 extends.This is between two surfaces 6,10 and each conductive thread 2
Between idle space is produced on short transverse S, the adhesive 12 that the idle space is formed binder compound is filled out
It fills.Through-hole 14 (usually rectangular) between cross-conduction silk thread 2 is also filled with adhesive 12 (referring to Fig. 1).
In the fabrication process, conductive silk screen 1 is generally positioned on the surface of PTC element 4.Then, adhesive 12 is applied
Onto conductive silk screen 1.Plate electrical insulator 8 is applied on adhesive and by the direction pressing along PTC element 4.This makes
Extra adhesive material is moved out of the edge of PTC element 4.When conductive silk screen 1 is by being formed in the intersection of conductive thread 2
When multiple supporting points and PTC element 4 and electrical insulator accurately contact, which, which removes, is completed.
This generates good bonding connection under the conditions of low layer thickness, because bonding is at least through the continuous of conductive silk screen 1
It is formed in idle space.Adhesive penetrates conductive silk screen, leads to good mechanical connection.Electrical connection is also improved, because leading
Electrical filament net is resisted against in PTC element 4 with discrete supporting point, and non-selectively, and reliably establish straight with PTC element 4
Connect metal contact.
The present invention then generates the strip conductor of small thickness, is securely joined to PTC element and electrical insulator 8.Bonding
In conjunction with being durable.Separation is desired.Due to good contact, it can be ensured that the voltage of not voltage drop introduces.
In addition, the quantity of transition resistance and transient thermal resistance is reduced, because while adhesive bond, electrical insulator 8 or PCT element
4 directly abut conductive silk screen 1.In traditional strip conductor, (strip conductor is formed by continuous metal piece, is applied in the two sides of sheet metal
Adhesive is covered on the one hand to combine PTC element, on the other hand combines insulating layer) in the case where, it does not provide really this straight
Contact.On the contrary, directly contact is prevented by bonding connection.Since the adhesive according to the solution of the present invention is continuously formed
In idle space between at least PTC element and electrical insulator 8, therefore also have what is improved to glue between described two components
Attached property, so that they are without departing from thus conductive silk screen ensures that reliable electric current introduces.Moreover, fever member according to the present invention
The manufacture of part only needs to apply an adhesive, and traditionally, it is necessary to apply twice on the two sides of terminal board.Conductive silk screen 1
Also act as the effect of reinforcer, thus increase mechanical connection between electrical insulator 8 and PTC element 4 shearing and surface it is strong
Degree.Conductive silk screen 1 is also more suited for disengaging of the compensation thermal expansion without bonding connection occurs.
Fig. 3 and 4 shows another embodiment of strip conductor, which has through-hole, be formed as porous metals
Net (expanded metal) 16 forms, be mainly aluminium flake or copper sheet, material thickness is between 0.4mm and 0.8mm.Especially
Ground shows according to the section view of Fig. 4 and is located at by a large amount of supporting points 18 that porous metal mesh 16 is formed by these supporting points
Conductive bar between PTC element 4 and electrical insulator can contact PTC element at least through discrete contact point.
Figures 5 and 6 show the alternate embodiment using punching press perforated sheet 20, pass through punching press or deep drawn (deep
Drawing) supporting point 22,24 come out from the physical plane E bend of sheet material is formed.Supporting point 22,24 respectively has center
Hole 26, binder compound can adhere to PTC element or the insulating layer being arranged there by the centre bore 26.Perforated sheet 20
Thickness is made between 0.2 and 0.4mm, and by aluminium or copper or its alloy.Supporting point 22,24 is formed by deep drawn.Especially
It is there is biggish region between the support points as adhesive area, binder compound can gather wherein.Perforated sheet
20 can have the flat lug for introducing voltage, and Flat plug can be inserted on the lug or flat lug forms flat insert
Head.In other words, conducting element can also form one chip contact surface, and the plug-in type for strip conductor contacts.
Reference signs list
1 conductive silk screen
2 conductive threads
4 PTC element
The surface of 6 PTC element
8 electrical insulators
The surface of 10 electrical insulators
12 adhesives
14 through-holes
16 porous metal mesh
18 supporting points
20 perforated sheets
22 supporting points
24 supporting points
26 holes
Claims (10)
1. a kind of heater element of electric heater unit, is particularly used for motor vehicles, the heater element has PTC element and supports
Two sides strip conductor (1) and on the outside on be applied to the electrical insulator of the strip conductor (1),
It is characterized in that,
At least one of described strip conductor (1) is formed by the conducting element (1) for being provided with through-hole (14), the conducting element
(1) have in the short transverse of the strip conductor with the PTC element (4) and/or the electrical insulator (8) against from
Scattered supporting point (18,22,24), wherein the idle space in the strip conductor is filled by binder compound (12).
2. heater element according to claim 1, which is characterized in that the supporting point (18,22,24) is by adhesive chemical combination
Object (12) circumferentially around.
3. heater element according to claim 1, which is characterized in that the conducting element is conductive silk screen (1).
4. heater element according to claim 1 or 2, which is characterized in that the conducting element is the sheet metal of punching press.
5. heater element according to claim 4, which is characterized in that the conducting element is porous metal mesh (16).
6. heater element according to claim 4, which is characterized in that the conducting element is perforated sheet (20), described to wear
Hole piece has discrete supporting point (18,22,24), and the supporting point is by being stamped and formed out at least one side and being resisted against institute
It states on PTC element or the electrical insulator.
7. heater element according to claim 1, which is characterized in that the conducting element formed on two planar from
Scattered supporting point (18,22,24), the supporting point in one of plane is against the PTC element (4), another plane
On the discrete supporting point against the electrical insulator (8), described two planes extend parallel to each other.
8. heater element according to claim 1, which is characterized in that the strip conductor by the conducting element (1) and
Described adhesive compound (12) composition.
9. heater element according to claim 1, which is characterized in that the PTC element (4) and the electrical insulator (8)
The distance between correspond to the conducting element (1) thickness.
10. heater element according to claim 1, which is characterized in that the electrical insulator (8) includes against the conduction
The ceramic layer of element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017223782.1 | 2017-12-22 | ||
| DE102017223782.1A DE102017223782A1 (en) | 2017-12-22 | 2017-12-22 | Heat generating element of an electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110012564A true CN110012564A (en) | 2019-07-12 |
| CN110012564B CN110012564B (en) | 2022-01-11 |
Family
ID=64746047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811579561.6A Active CN110012564B (en) | 2017-12-22 | 2018-12-21 | Heating element of electric heating device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3515152A3 (en) |
| CN (1) | CN110012564B (en) |
| DE (1) | DE102017223782A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112118647A (en) * | 2019-06-19 | 2020-12-22 | 埃贝赫卡腾有限两合公司 | Heat generating element and method for manufacturing same |
| US20210204365A1 (en) * | 2019-12-27 | 2021-07-01 | Eberspächer Catem Gmbh & Co. Kg | Heat Generating Element and Method for Manufacturing the Same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018220858A1 (en) * | 2018-12-03 | 2020-06-04 | Eberspächer Catem Gmbh & Co. Kg | Electric heater |
| DE102020205305B4 (en) | 2020-04-27 | 2022-06-30 | Eberspächer Catem Gmbh & Co. Kg | PTC heater and method of making same |
| DE102022120360A1 (en) | 2022-08-11 | 2024-02-22 | Eberspächer Catem Gmbh & Co. Kg | PTC heater |
| DE102022125637A1 (en) | 2022-10-05 | 2024-04-11 | Eberspächer Catem Gmbh & Co. Kg | PTC heating device and method for its manufacture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937860A (en) * | 2005-09-23 | 2007-03-28 | 凯特姆两合公司 | Heat-generating element of a heating device |
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| CN1937859A (en) * | 2005-09-23 | 2007-03-28 | 凯特姆两合公司 | Heat-generating element of a heating device |
| EP1916873A1 (en) * | 2006-10-25 | 2008-04-30 | Catem GmbH & Co.KG | Heat-generating element for an electrical heating device and method for manufacturing the same |
| DE102009031890A1 (en) * | 2009-07-06 | 2011-01-13 | Dbk David + Baader Gmbh | heater |
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| CN112118647A (en) * | 2019-06-19 | 2020-12-22 | 埃贝赫卡腾有限两合公司 | Heat generating element and method for manufacturing same |
| US11943846B2 (en) | 2019-06-19 | 2024-03-26 | Eberspächer Catem Gmbh & Co. Kg | Heat-generating element and method for its production |
| US20210204365A1 (en) * | 2019-12-27 | 2021-07-01 | Eberspächer Catem Gmbh & Co. Kg | Heat Generating Element and Method for Manufacturing the Same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3515152A2 (en) | 2019-07-24 |
| DE102017223782A1 (en) | 2019-06-27 |
| EP3515152A3 (en) | 2019-10-09 |
| CN110012564B (en) | 2022-01-11 |
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