EP1253031A1 - Heizregister mit PTC-Elementen - Google Patents
Heizregister mit PTC-Elementen Download PDFInfo
- Publication number
- EP1253031A1 EP1253031A1 EP02006424A EP02006424A EP1253031A1 EP 1253031 A1 EP1253031 A1 EP 1253031A1 EP 02006424 A EP02006424 A EP 02006424A EP 02006424 A EP02006424 A EP 02006424A EP 1253031 A1 EP1253031 A1 EP 1253031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tolerance
- ptc
- ptc elements
- group
- elements
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Images
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
- H05B3/10—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
- H05B3/14—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 the material being non-metallic
-
- 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
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
- H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
-
- 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
Definitions
- the invention relates to a heating register with several individual PTC elements that electrically form a PTC element group with each other interconnected and selected in this way from a production of PTC elements are that the PTC element group with respect to an electrical parameter adheres to a specified group tolerance.
- Such PTC heating registers are used, for example, to build heating blocks used for electric heaters used in automotive heating systems for heating a vehicle interior come.
- the heating register consists of the individual PTC elements, the electrically e.g. are connected in parallel.
- DE 44 34 613 A1 is a strip-shaped PTC heating register for discloses this purpose, the individual PTC elements at a distance inserted side by side in openings of a sealing frame and by two sheets lying on both sides are held.
- the invention has the technical problem of providing a PTC heating register based on the type mentioned, in which the predetermined Group tolerance with regard to the relevant electrical parameter is observed, all places for PTC elements can be filled and as far as possible no functional PTC elements from production for the Must be discarded in the heating register.
- This heating register includes a PTC element group with a fixed number of PTC elements, i.e. all the places reserved for the same are also occupied. to Not only those PTC elements are used in the heating register approved, the individual tolerance of the electrical Characteristic within one of the given group tolerance Single tolerance range, but also PTC elements the production, the individual tolerance of which lies outside of this range.
- PTC elements are special for the heating register selected as a group that is electrically interconnected comply with the specified group tolerance. This can e.g.
- Fig. 1 shows a strip-shaped PTC heating register of known Structure as described in DE 44 34 613 A1 cited above.
- On Sealing frame 1 e.g. Made of soft plastic material with multiple openings 2 provided, in the example shown, these are three openings, one in corresponding number of individual PTC elements 3a, 3b, 3c introduced is.
- the PTC elements 3a, 3b, 3c are in it through a lower plate 4 and one removed in FIG. 1 for the purpose of recognizing the PTC elements 3a, 3b, 3c, upper sheet held.
- the sheets also serve that Heat transport and the electrical contacting of the PTC elements 3a, 3b, 3c.
- the three PTC elements 3a, 3b, 3c with each other electrically in parallel to a corresponding PTC element group connected has to adhere to a certain tolerance referred to as group tolerance.
- group tolerance a certain tolerance referred to as group tolerance.
- the frequency distribution has its maximum at the tolerance value 0%, ie the frequency maximum lies with those manufactured PTC elements whose electrical resistance or conductance has the target value specified for production.
- PTC elements with resistance or conductance values that deviate from the nominal value. Although their number decreases with increasing distance of the actual resistance or conductance from the target value, overall there is nevertheless a considerable number of PTC elements with their resistance or conductance, for example in the hatched area B L of FIG. 2 lie, ie lie below the target value by more than a lower limit value T U , or lie in the area B R shaded in FIG. 2, ie lie above the target value by more than an upper limit value T O.
- the lower and the upper limit value T U , T O are set so that this individual tolerance range B M corresponds to the predetermined group tolerance, ie when the individual tolerances of all three PTC elements 3a, 3b, 3c on lower limit value T U , this leads to an overall tolerance value at the lower limit of the specified group tolerance, and analogously, if the individual tolerances of the three PTC elements 3a, 3b, 3c are at the upper limit value T O , an overall tolerance value at the upper limit Limit of the specified group tolerance.
- all manufactured PTC elements can be used in that when selecting the three PTC elements 3a, 3b, 3c for the heating register, their individual tolerances are observed and a tolerance deviating in one direction for one of the PTC elements by selecting one or more of the other PTC elements with tolerance deviating in the other direction is compensated.
- any PTC element can first be picked out as the first PTC element 3a used from a complete set of manufactured PTC elements. If this comes from the mean single tolerance range B M of FIG. 2, there is practically complete freedom of choice for the second PTC element 3b to be used.
- the second PTC element 3b is preferably selected from the respective other of these two regions B L , B R.
- the third PTC element 3c is then suitably selected either from the middle area B M with a small tolerance or from one of the two areas B L , B R with a higher tolerance , so that overall the tolerance of the three selected and electrically interconnected PTC elements 3a, 3b, 3c is within the predetermined overall tolerance.
- each of several PTC heating registers of a heating block built with it the desired tolerance with regard to the electrical resistance or conductance also ensures that the electrical resistance or conductance of the Total heating blocks is within a predeterminable tolerance.
- heating registers with any build a different number of PTC elements If necessary can be used for easier selection of the PTC elements with suitable Tolerance value a pre-grouping of all manufactured and functional PTC elements in predefinable groups with different Tolerance intervals may be provided. If a manufacturing system Number of such groups and the associated tolerance intervals as well as the Number of PTC elements to be inserted in the heating register known this is able to select and insert the Make PTC elements largely automated.
- Heating registers complete freedom of choice from the entire set of manufactured PTC elements, all PTC elements can be seen can be used for the production of appropriate heating registers, too those with high tolerance, i.e. high deviation of the electrical Characteristic of the setpoint.
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
- Surface Heating Bodies (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
Description
- Fig. 1
- eine Draufsicht auf ein streifenförmiges PTC-Heizregister mit abgenommenem oberem Blech und
- Fig. 2
- ein Diagramm einer typischen Häufigkeitsverteilung der Einzeltoleranz von PTC-Elementen aus der Fertigung zur Veranschaulichung der Auswahl geeigneter PTC-Elemente für das Heizregister von Fig. 1.
Claims (2)
- Heizregister mitmehreren einzelnen PTC-Elementen (3a, 3b, 3c), die elektrisch zu einer PTC-Elementgruppe miteinander verschaltet und derart aus einer Fertigung von PTC-Elementen ausgewählt sind, dass die PTC-Elementgruppe bezüglich einer elektrischen Kenngröße eine vorgegebene Gruppentoleranz einhält,für die PTC-Elementgruppe eine vorgebbare feste Anzahl mehrerer PTC-Elemente (3a, 3b, 3c) vorgesehen ist, die aus einer Fertigung von PTC-Elementen mit Einzeltoleranzen, die in einem Bereich (BL, BM, BR) liegen, der über den der vorgegebenen Gruppentoleranz entsprechenden Einzeltoleranzbereich (BM) hinausgeht, derart ausgewählt sind, dass sie als miteinander verschaltete PTC-Elementgruppe die Gruppentoleranz einhalten.
- Heizregister nach Anspruch 1, weiter dadurch gekennzeichnet, dass als elektrische Kenngröße der elektrische Widerstand oder Leitwert gewählt ist und die vorgegebene Gruppentoleranz höchstens ±15% beträgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10119928A DE10119928A1 (de) | 2001-04-23 | 2001-04-23 | Heizregister mit PTC-Elementen |
DE10119928 | 2001-04-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1253031A1 true EP1253031A1 (de) | 2002-10-30 |
EP1253031B1 EP1253031B1 (de) | 2003-09-03 |
Family
ID=7682452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006424A Revoked EP1253031B1 (de) | 2001-04-23 | 2002-03-22 | Heizregister mit PTC-Elementen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1253031B1 (de) |
AT (1) | ATE248723T1 (de) |
DE (2) | DE10119928A1 (de) |
ES (1) | ES2204877T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1790916A1 (de) * | 2005-11-23 | 2007-05-30 | Catem GmbH & Co.KG | Elektrische Heizvorrichtung mit Toleranz-PTC-Heizelement |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0893937A2 (de) * | 1997-07-25 | 1999-01-27 | Behr GmbH & Co. | Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
EP1026020A1 (de) * | 1999-02-08 | 2000-08-09 | Valeo Klimasysteme GmbH | Elektrische Heizvorrichtung für Kraftfahrzeug |
DE19911547A1 (de) * | 1999-03-16 | 2000-09-21 | Behr Gmbh & Co | Elektrische Heizeinrichtung für ein Kraftfahrzeug |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3029446A1 (de) * | 1980-08-02 | 1982-03-11 | Robert Bosch Gmbh, 7000 Stuttgart | Duennschichtanordnung |
DE3540830A1 (de) * | 1984-11-16 | 1986-05-22 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Verfahren zum stufenweisen einstellen einer an einem an spannung ueber einen schalter liegenden widerstand anfallenden elektrischen leistung und schaltungsanordnung zur durchfuehrung des verfahrens |
DE4434613A1 (de) * | 1994-09-28 | 1996-04-04 | Behr Gmbh & Co | Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
-
2001
- 2001-04-23 DE DE10119928A patent/DE10119928A1/de not_active Withdrawn
-
2002
- 2002-03-22 AT AT02006424T patent/ATE248723T1/de not_active IP Right Cessation
- 2002-03-22 EP EP02006424A patent/EP1253031B1/de not_active Revoked
- 2002-03-22 ES ES02006424T patent/ES2204877T3/es not_active Expired - Lifetime
- 2002-03-22 DE DE50200039T patent/DE50200039D1/de not_active Revoked
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0893937A2 (de) * | 1997-07-25 | 1999-01-27 | Behr GmbH & Co. | Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
EP1026020A1 (de) * | 1999-02-08 | 2000-08-09 | Valeo Klimasysteme GmbH | Elektrische Heizvorrichtung für Kraftfahrzeug |
DE19911547A1 (de) * | 1999-03-16 | 2000-09-21 | Behr Gmbh & Co | Elektrische Heizeinrichtung für ein Kraftfahrzeug |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1790916A1 (de) * | 2005-11-23 | 2007-05-30 | Catem GmbH & Co.KG | Elektrische Heizvorrichtung mit Toleranz-PTC-Heizelement |
Also Published As
Publication number | Publication date |
---|---|
EP1253031B1 (de) | 2003-09-03 |
DE50200039D1 (de) | 2003-10-09 |
ATE248723T1 (de) | 2003-09-15 |
DE10119928A1 (de) | 2002-10-31 |
ES2204877T3 (es) | 2004-05-01 |
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