EP1168887B1 - Nachspannbare Federaufweitvorrichtung, insbesondere für Heizelemente - Google Patents
Nachspannbare Federaufweitvorrichtung, insbesondere für Heizelemente Download PDFInfo
- Publication number
- EP1168887B1 EP1168887B1 EP01112337A EP01112337A EP1168887B1 EP 1168887 B1 EP1168887 B1 EP 1168887B1 EP 01112337 A EP01112337 A EP 01112337A EP 01112337 A EP01112337 A EP 01112337A EP 1168887 B1 EP1168887 B1 EP 1168887B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expanding device
- parts
- tensioning
- spring element
- connecting leg
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/21—Utilizing thermal characteristic, e.g., expansion or contraction, etc.
Definitions
- the invention relates to a widening device, in particular for heating elements for heating a liquid, see DE-A-3 914 897.
- This problem can be exemplified by a heating bag of an electric heater an internal combustion engine are illustrated.
- Heating elements for heating a liquid e.g. the cooling water in one Combustion engine, arranged, with the heating pockets of the heated Liquid to be flowed around.
- the heating elements on the inside of the housing of the heating bags be attached. Screw each heating element individually or over one Clamp is very time consuming. The sticking of heating elements is also time consuming, also has an adhesive bond because of high temperatures of the heating elements a short life.
- the object of the present invention is therefore to develop a device with a simple, maintenance-free fastening of elements to one Wall and adjusting the contact pressure of the element to the wall allows becomes.
- a widening device two against the action of a spring element relative to each other displaceable Divide, wherein the spring element between the two parts arranged is and rests on both parts each with an outer leg, with a displaceable tensioning element at right angles to the direction of movement of the two parts, that of a middle connecting leg of the spring element is encompassed, and with an abutment on which the connecting leg supported in a clamping direction of the clamping element, wherein at least in the untensioned Condition a cooperating with the clamping element in the clamping direction Section of the connecting leg aligned obliquely to the clamping direction is.
- the spring element already has a bias during installation, which is the Part to be installed or the parts with slight contact pressure against a system or wall presses and thereby holds in position. After that, the contact pressure be increased or adjusted over the clamping element by clicking on a or a plurality of sections of the connecting leg of the spring element so affects that the outer limbs of the spring element widened and the part or the parts are thus pressed more strongly against the plant. Because the spring element is an elastic element, will be geometry changes of the part or the parts balanced due to aging or thermal influences. A re-adjustment of the contact pressure and maintenance are therefore not required.
- the spring element is preferably symmetrical to the median plane formed between the two parts, so that the two opposite Parts with only one spring element on opposite walls in position can be held and fastened.
- the anvil is preferably arranged so that the outermost end the connecting leg is supported. However, it is also conceivable that the anvil in a region between the cooperating with the clamping element Sections of the connecting leg and the outer legs the spring element is arranged.
- the clamping element is a round part.
- a round part leaves easy to install and glides particularly well along the oblique to the clamping direction aligned portions of the connecting leg, without closing tilt.
- the section is just formed. This will be a particularly good and effective interaction with the formed as a round part clamping element reached.
- the spring element may be band-shaped.
- the spring element can then at least partially flat on the clamping element and rest against the parts to be fastened. A rotation of the spring element relative to the clamping element or the parts to be expanded is therefore largely possible locked out.
- the expansion device has means for altering the distance between the clamping element and the abutment on.
- the spring element By Reducing the distance between the clamping element and the counter bearing the spring element is pressed against the anvil, causing a widening or spreading in the area between the relatively displaceable Parts located outer leg of the spring element takes place. Thereby The contact pressure of a part to be fastened can be adjusted to a system become.
- the device for changing the distance between the clamping element and the anvil at least one intervening Screw is.
- the distance can be via a screw connection on the one hand set very accurately and the other is the once set Distance not changeable.
- Expander device is a contact surface for at least one of the two parts provided and is between the contact surface and the at least one part an insulating layer is arranged.
- the insulating layer can be sandwiched between the part and the plant, leaving the insulating layer is held indirectly by the spring element in position. Additional Fastening devices for the insulating layer are therefore not required.
- the abutment is formed by at least one of the two parts, then no separate counter bearing be provided.
- the anvil must be so not specially manufactured and installed, which saves time and material.
- the expansion device for fixing heating elements in heating bags of e.g. electrical Used auxiliary heaters of internal combustion engines.
- a fixing with adhesive is only possible to a limited extent, as this may dissolve at the temperatures occurring.
- the expansion device according to the invention a quick installation possible and maintenance or readjustment of the contact pressure is not necessary.
- the clamping elements are several successive or juxtaposed expansion devices formed by a common clamping element.
- the tensioning element works with the sections of the connecting legs of several spring elements simultaneously together. Consequently, with only one clamping element, a plurality of spring elements be re-tensioned and thus the contact pressure of several Parts are set against a system at the same time.
- the housing 1 shows a section through a widening device 1 arranged in a heating pocket of an electric auxiliary heater of an internal combustion engine .
- the housing 2 of the heating pocket is formed by an aluminum die-cast housing and is surrounded by a fluid to be heated.
- Within the housing 2 are a plurality of heating elements 3,4, which abut each with its one side on a formed as a disk electrically insulating insulating layer 5,6 .
- the insulating layer 5,6 is located between the housing inner wall 7 and a heating element 3,4.
- heating elements 3,4 power semiconductors in particular power transistors are provided, which are arranged so that two heating elements 3,4 spaced by a gap 8 with the insulating layer 5,6 facing away from 9,10 .
- the heating elements 3,4 are held in their position by a spring element 11, which is partially in the gap 8 between the heating elements 3,4.
- the one-piece spring element 11 has in the gap 8, two outer legs 12,13 with opposing bends, so that forms an approximately elliptical cavity between the outer legs 12,13.
- the outer sides of the outer legs 12,13 are partially on the sides 9,10 of the heating elements 3,4 and press the heating elements 3,4 in the direction of arrow 14,15 against the insulating layer 5,6.
- the symmetrical to its longitudinal axis spring element 11 forms outside of the gap 8 by two curved legs 16 ', 17' almost a semicircle. This is followed by two sections 16,17 of a connecting leg 18 at.
- the curved end of the connecting leg 18 is adapted to the shape of a groove 19 of an abutment 20 in which it engages.
- a clamping element 21 designed as a round part , which rests at least on the inner sides 22, 23 of the sections 16, 17.
- FIG. 2 shows a cross section through an arrangement 100 of five expansion devices 1 arranged side by side in a direction perpendicular to the plane of the drawing of FIG. 1.
- the housing 101 of the arrangement 100 is surrounded by a fluid to be heated.
- the spring elements 11 are indicated by a vertical line.
- openings 132,133 are provided through which a screw 134,135 is guided.
- the front end 136,137 of the screw 134,135 is guided in a thread 138,139 , which is located in the common abutment 103 .
- the screw 134,135 the distance between the encompassed by the connecting leg 18 clamping element 102 and the anvil 103 can be changed.
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)
- Clamps And Clips (AREA)
Description
- Fig. 1
- einen Schnitt durch eine erfindungsgemäße Aufweitvorrichtung;
- Fig. 2
- einen Schnitt durch eine Anordnung mehrerer erfindungsgemäßer Aufweitvorrichtungen in einer senkrechten Ebene zum Schnitt der Fig. 1.
Claims (12)
- Aufweitvorrichtung (1) mit zwei gegen die Wirkung eines Federelements (11) relativ zueinander verschiebbaren Teilen oder Heizelementen (3,4), wobei das Federelement (11) zwischen den beiden Teilen (3,4) angeordnet ist und an beiden Teilen (3,4) jeweils mit einem Außenschenkel (12,13) anliegt, mit einem rechtwinklig zur Bewegungsrichtung (14,15) der beiden Teile (3,4) verschiebbaren Spannelement (21), das von einem mittleren Verbindungsschenkel (18) des Federelements (11) umgriffen ist, und mit einem Gegenlager (20), an dem sich der Verbindungsschenkel (18) in einer Spannrichtung (21') des Spannelements (21) abstützt, wobei zumindest im ungespannten Zustand ein mit dem Spannelement (21) in Spannrichtung (21') zusammenwirkender Abschnitt (16,17) des Verbindungsschenkels (18) schräg zur Spannrichtung (21') ausgerichtet ist.
- Aufweitvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Spannelement (21) ein Rundteil ist.
- Aufweitvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Abschnitt (16,17) eben ausgebildet ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Federelement (11) drahtförmig ausgebildet ist.
- Aufweitvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Federelement (11) bandförmig ausgebildet ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Gegenlager (20) eine Stützaufnahme oder Rille (19) für den Verbindungsschenkel (18) des Federelements (11) vorgesehen ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufweitvorrichtung (1) eine Einrichtung zum Verändern des Abstands zwischen dem Spannelement (21) und dem Gegenlager (20) aufweist.
- Aufweitvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Einrichtung zum Verändern des Abstands zwischen dem Spannelement (21) und dem Gegenlager (20) mindestens eine dazwischen wirkende Schraubverbindung (34,35) ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass für mindestens eines der beiden Teile (3,4) eine Anlagefläche oder Gehäuseinnenwand (7) vorgesehen ist und dass zwischen der Anlagefläche (7) und dem mindestens einen Teil (3,4) eine Isolierschicht (5,6) angeordnet ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gegenlager (20) durch mindestens eines der Teile (3,4) gebildet ist.
- Aufweitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eines der beiden Teile ein Heizelement (3,4) ist.
- Anordnung (100) mit mehreren hintereinander oder nebeneinander angeordneten Aufweitvorrichtungen (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spannelemente (21) der einzelnen Aufweitvorrichtungen (1) durch ein gemeinsames Spannelement (102) gebildet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10027340A DE10027340C2 (de) | 2000-06-02 | 2000-06-02 | Nachspannbare Aufweitvorrichtung |
DE10027340 | 2000-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1168887A1 EP1168887A1 (de) | 2002-01-02 |
EP1168887B1 true EP1168887B1 (de) | 2005-08-17 |
Family
ID=7644442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01112337A Expired - Lifetime EP1168887B1 (de) | 2000-06-02 | 2001-05-19 | Nachspannbare Federaufweitvorrichtung, insbesondere für Heizelemente |
Country Status (3)
Country | Link |
---|---|
US (1) | US6369368B2 (de) |
EP (1) | EP1168887B1 (de) |
DE (2) | DE10027340C2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20030262A1 (it) * | 2003-04-04 | 2004-10-05 | Fiat Ricerche | Dispositivo di serratura con mezzi attuatori a memoria di forma. |
US20060113810A1 (en) * | 2004-11-30 | 2006-06-01 | Sidler Inc. | Modular overhead console assembly for a vehicle |
EP3197567A4 (de) * | 2014-09-23 | 2018-05-23 | The Reliable Automatic Sprinkler Co., Inc. | Brandschutzsprinkler mit schraubenschlüsselnabenarretierung und klemme sowie verfahren zur herstellung davon |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1030796A (en) * | 1967-06-16 | 1966-05-25 | Ft Products Ltd | Improvements in and relating to fasteners |
US3940591A (en) * | 1974-07-01 | 1976-02-24 | Texas Instruments Incorporated | Self-regulating electric heater |
DE3914897A1 (de) * | 1989-05-05 | 1990-11-08 | Productech Gmbh | Kompensation der laengenausdehnung von waermeabgebenden teilen |
FI894671A (fi) * | 1989-10-03 | 1991-04-04 | Erkki Rinne | Reglerbar faestanordning. |
US5256857A (en) * | 1990-08-22 | 1993-10-26 | Texas Instruments Incorporated | Finned PTC air heater assembly for heating an automotive passenger compartment |
US5127780A (en) * | 1990-09-20 | 1992-07-07 | Kennametal Inc. | Expandable holding device using a fusible alloy |
US5194717A (en) * | 1990-10-18 | 1993-03-16 | Tecumseh Products Company | Bracket for mounting a crankcase heater |
EP0716982B1 (de) * | 1994-12-14 | 1999-09-15 | Fokker Space B.V. | System zum Festhalten und Trennen von Konstruktionselementen |
US5630671A (en) * | 1995-08-31 | 1997-05-20 | The Torrington Company | Locking device for a bearing assembly |
US5771742A (en) * | 1995-09-11 | 1998-06-30 | Tini Alloy Company | Release device for retaining pin |
US5674027A (en) * | 1995-11-20 | 1997-10-07 | Applied Research Associates, Inc. | Exaggerated actuation and bearing-free rotational mobility in smart hinges |
DE19635177A1 (de) * | 1996-08-30 | 1998-03-05 | Job Lizenz Gmbh & Co Kg | Thermisch auslösende Trennvorrichtung, insbesondere für Feuerschutzanlagen |
-
2000
- 2000-06-02 DE DE10027340A patent/DE10027340C2/de not_active Expired - Fee Related
-
2001
- 2001-05-19 DE DE50107096T patent/DE50107096D1/de not_active Expired - Fee Related
- 2001-05-19 EP EP01112337A patent/EP1168887B1/de not_active Expired - Lifetime
- 2001-06-01 US US09/872,119 patent/US6369368B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6369368B2 (en) | 2002-04-09 |
EP1168887A1 (de) | 2002-01-02 |
DE10027340A1 (de) | 2002-01-31 |
DE10027340C2 (de) | 2002-07-04 |
DE50107096D1 (de) | 2005-09-22 |
US20010047991A1 (en) | 2001-12-06 |
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