DE102017121183A1 - Heating device and method for producing a heating device - Google Patents

Abstract

The present invention relates to a heating device for tempering a fluid and to a method for the production thereof.

Description

The present invention relates to a heating device for tempering a fluid and to a method for producing a heating device.

Corresponding prior art heaters are often inefficient in heat transfer to the fluid and, especially with respect to the heating element, comprise regularly sensitive components which may be damaged in the manufacture and operation of the device, thereby resulting in only one device have reduced life. The contacting of the essential heating elements is typically carried out by soldering or spring contacts, resulting in a comparatively extensive and not very compact construction of the heater as a whole. Accordingly, the manufacturing process of such known heaters is also often expensive and therefore expensive. Furthermore, the reliability is not optimal, in particular, the known from the prior art contacting faulty and failure prone.

It is therefore an object of the present invention to provide a heating device which overcomes the disadvantages of the prior art, in particular energy-efficient, robust and thus durable. In addition, a method for their preparation is to be specified, which is simple and still cheap to use compared to the prior art and allows high reliability.

• - zumindest einen zumindest einen ersten Volumenbereich zumindest bereichsweise einschließenden Grundkörper,
• - zumindest einen zumindest einen zweiten Volumenbereich zumindest bereichsweise einschließenden und diesen gegenüber dem ersten Volumenbereich abtrennenden Aufnahmekörper,
• - zumindest ein Widerstandselement, das zumindest teilweise in dem Aufnahmekörper angeordnet oder anordnenbar ist,
• - zumindest ein auf zumindest einem ersten äußeren Oberflächenbereich des Grundkörpers angeordnetes erstes Leitelement,

wobei das erste Leitelement direkt oder indirekt mit dem Widerstandselement elektrisch leitend verbunden ist.With regard to a first aspect relating to the device, the object is achieved by a heating device for controlling the temperature of at least one fluid

• at least one main body enclosing at least a first volume region at least in regions,
• at least one receiving body enclosing at least a second volume region at least in regions and separating it from the first volume region,
• at least one resistance element which is at least partially arranged or arrangeable in the receiving body,
• at least one first guide element arranged on at least a first outer surface area of the base body,

wherein the first guide element is electrically or directly connected directly or indirectly with the resistance element.

In this case, the heating device is particularly preferably characterized by at least one arranged on at least a second outer surface region of the body second guide element, in particular the first guide element and the second guide element are electrically or indirectly connected directly or indirectly exclusively via the resistance element.

A device according to the invention may also be characterized by at least one first contact element directly or indirectly electrically conductively connected to the first conducting element for producing an electrically conductive connection with at least one first pole of at least one current and / or voltage source and / or at least one with the second conducting element directly or indirectly electrically conductively connected second contact element for producing an electrically conductive connection with at least one second pole of the current and / or voltage source.

1. (i) der Grundkörper zumindest bereichsweise rohrförmig ausgebildet ist und/oder der erste Volumenbereich zumindest einen Fluidpfad zum Führen eines Fluids umfasst und/oder darstellt, und/oder innerhalb des Fluidpfads und/oder des Grundkörpers, insbesondere innerhalb des ersten Volumenbereichs, ein Fluid geführt oder führbar ist,
2. (ii) der Aufnahmekörper zumindest bereichsweise integral mit dem Grundkörper ausgebildet ist und/oder zumindest teilweise oder vollständig in den ersten Volumenbereich hineinragt,
3. (iii) der Grundkörper zumindest eine Ausnehmung aufweist,
4. (iv) der Aufnahmekörper zumindest bereichsweise in Kontakt mit dem Fluid steht und/oder den zweiten Volumenbereich gegenüber dem ersten Volumenbereich, vorzugsweise mediendicht und/oder hermetisch, abtrennt,
5. (v) der zweite Volumenbereich zumindest bereichsweise mit dem den Grundkörper umgebenden Volumen vermögens der Ausnehmung verbunden oder verbindbar ist,
6. (vi) das erste Leitelement direkt oder indirekt mittels zumindest eines ersten Verbindungselements elektrisch leitend mit dem ersten Kontaktelement verbunden ist,
7. (vii) das zweite Leitelement direkt oder indirekt mittels zumindest eines zweiten Verbindungselements elektrisch leitend mit dem zweiten Kontaktelement verbunden ist,
8. (viii) die Vorrichtung ferner zumindest eine, vorzugsweise mit dem Widerstandselement und/oder dem ersten Leitelement elektrisch leitend verbundene, insbesondere räumlich und/oder elektrisch zwischen diesen angeordnete, erste Kontakteinheit umfasst und/oder ferner zumindest eine, vorzugsweise mit dem Widerstandselement und dem zweiten Leitelement elektrisch leitend verbundene, insbesondere räumlich und/oder elektrisch zwischen diesen angeordnete, zweite Kontakteinheit umfasst,

und/oder die elektrisch leitende Verbindung zwischen dem ersten Leitelement und dem zweiten Leitelement , insbesondere zwischen dem ersten Leitelement einerseits und der ersten Kontakteinheit und/oder dem Widerstandselement andererseits und/oder zwischen dem zweiten Leitelement einerseits und der zweiten Kontakteinheit und/oder dem Widerstandselement andererseits, zumindest abschnittsweise zumindest einen elektrischen Leiter, insbesondere angeordnet auf zumindest einem äußeren Oberflächenbereich des Grundkörpers und/oder ausgestaltet in Form zumindest einer elektrischen Leiterbahn, umfasst.In the above-mentioned embodiment, it is particularly preferable that

1. (i) the base body is at least partially tubular and / or the first volume region comprises at least one fluid path for guiding a fluid and / or represents, and / or within the fluid path and / or the base body, in particular within the first volume range, a fluid out or is feasible,
2. (ii) the receiving body is at least partially integral with the base body and / or at least partially or completely protrudes into the first volume area,
3. (iii) the base body has at least one recess,
4. (iv) the receiving body is at least partially in contact with the fluid and / or separates the second volume area from the first volume area, preferably media-tight and / or hermetic,
5. (v) the second volume region is at least partially connected or connectable to the volume of the recess surrounding the basic body,
6. (vi) the first guide element is connected directly or indirectly by means of at least one first connection element to be electrically conductive with the first contact element,
7. (vii) the second guide element is connected directly or indirectly by means of at least one second connection element in an electrically conductive manner to the second contact element,
8. (viii) the device further comprises at least one, preferably electrically conductively connected to the resistance element and / or the first guide element, in particular arranged spatially and / or electrically between these first contact unit and / or further at least one, preferably with the resistive element and the second Comprises conducting element electrically conductively connected, in particular spatially and / or electrically arranged between these, the second contact unit,

and / or the electrically conductive connection between the first guide element and the second guide element, in particular between the first guide element on the one hand and the first contact unit and / or the resistance element on the other hand and / or between the second guide element on the one hand and the second contact unit and / or the resistance element on the other , at least in sections, at least one electrical conductor, in particular arranged on at least one outer surface region of the base body and / or designed in the form of at least one electrical conductor path comprises.

1. (i) die Vorrichtung ferner zumindest ein, vorzugsweise zumindest teilweise und/oder bereichsweise innerhalb des Aufnahmekörpers angeordnetes, Trägerelement umfasst, wobei das Trägerelement das Widerstandselement zumindest bereichsweise umgibt,
2. (ii) das Trägerelement und/oder das Widerstandselement den zweiten Volumenbereich (7), insbesondere in zumindest einen ersten Teilvolumenbereich und zumindest einen zweiten Teilvolumenbereich, unterteilt, wobei vorzugsweise der erste Teilvolumenbereich im Wesentlichen gleich groß ist wie der zweite Teilvolumenbereich ist,
3. (iii) die erste Kontakteinheit vollständig oder zumindest teilweise und/oder bereichsweise innerhalb des ersten Teilvolumenbereichs angeordnet ist, vorzugsweise diesen vollständig ausfüllt und/oder die zweite Kontakteinheit vollständig oder zumindest teilweise und/oder bereichsweise innerhalb des zweiten Teilvolumenbereichs angeordnet ist, vorzugsweise diesen vollständig ausfüllt,
4. (iv) das Trägerelement, insbesondere zumindest ein Umfangsabschnitt des Trägerelements, zumindest bereichsweise bündig an zumindest einem inneren Wandabschnitt des Aufnahmekörpers anliegt, insbesondere den ersten Teilvolumenbereich und den zweiten Teilvolumenbereich mediendicht voneinander abdichtet,
5. (v) das Trägerelement und/oder das Widerstandselement im Wesentlichen zumindest bereichsweise bündig mit dem äußeren Oberflächenbereich des Grundkörpers abschließt,
6. (vi) das Trägerelement zumindest ein erstes Führungselement, insbesondere zumindest bereichswese in Form zumindest einer Nut und/oder eines Vorsprungs aufweist, das mit einer komplementären Struktur des Grundkörpers und/oder Aufnahmekörpers zusammenwirkt, insbesondere eine formschlüssige Verbindung zwischen Trägerelement und Aufnahmekörper bzw. Grundkörper, vorzugsweise in einer Richtung im Wesentlichen senkrecht zur Einführungsrichtung des Trägerelements in den Aufnahmekörper bzw. Grundkörper, herstellt, und/oder
7. (vii) der Grundkörper und/oder der Aufnahmekörper zumindest ein zweites Führungselement, insbesondere als die komplementäre Struktur, insbesondere in Form eines Vorsprungs und/oder einer Nut aufweist, das mit einer komplementären Struktur des Trägerelements, insbesondere dem ersten Führungselement, zusammenwirkt, insbesondere eine formschlüssige Verbindung zwischen Trägerelement und Aufnahmekörper bzw. Grundkörper, vorzugsweise in einer Richtung im Wesentlichen senkrecht zur Einführungsrichtung des Trägerelements in den Aufnahmekörper bzw. Grundkörper, herstellt.

It can also be preferred that

1. (I) the device further comprises at least one, preferably at least partially and / or partially arranged within the receiving body, carrier element, wherein the carrier element surrounding the resistance element at least partially,
2. (ii) the carrier element and / or the resistance element the second volume region ( 7 ), in particular into at least a first partial volume range and at least a second partial volume range, wherein preferably the first partial volume range is substantially the same as the second partial volume range,
3. (Ii) the first contact unit is arranged completely or at least partially and / or partially within the first partial volume range, preferably completely fills it and / or the second contact unit is completely or at least partially and / or partially disposed within the second partial volume range, preferably completely fills it .
4. (iv) the carrier element, in particular at least one peripheral section of the carrier element, rests flush against at least one inner wall section of the receiving body, in particular the first partial volume area and the second partial volume area are sealed from each other,
5. (v) the support element and / or the resistance element substantially flush at least in regions with the outer surface region of the base body,
6. (vi) the carrier element has at least one first guide element, in particular at least partially in the form of at least one groove and / or a projection, which cooperates with a complementary structure of the base body and / or receiving body, in particular a positive connection between the carrier element and the receiving body or base body, preferably in a direction substantially perpendicular to the direction of insertion of the carrier element in the receiving body or body, manufactures, and / or
7. (vii) the base body and / or the receiving body at least a second guide element, in particular as the complementary structure, in particular in the form of a projection and / or a groove which cooperates with a complementary structure of the support member, in particular the first guide member, in particular a positive connection between the carrier element and receiving body or body, preferably in a direction substantially perpendicular to the direction of insertion of the carrier element in the receiving body or body produces.

Alternatively or additionally, a preferred embodiment is characterized in that the carrier element at least one spacer element, preferably two or a plurality of spacer elements, in particular on at least one side of the carrier element, preferably at least two, preferably opposite, or a plurality of sides of the carrier element , in particular for direct or indirect support of the support element and / or resistance element on at least one inner wall portion of the receiving body, preferably at least two, preferably opposite, or a plurality of inner wall portions of the receiving body.

It is particularly preferred that the device further comprises at least one of the main body, the first guide element, the second guide element, the carrier element and / or the recess at least partially and / or at least partially completely covering the coating element and / or further at least one, in particular the first and / or the second contact element comprises at least partially surrounding and / or integrally formed with the coating element, coupling element, preferably is suitable, at least one permanent and / or detachable connection, in particular a crimp, Klips-, bayonet and / or plug connection, with at least one, preferably having at least one, preferably two, means for, in particular to produce an electrically conductive compound, Cooperation with each of the first and / or second contact element, structure, in particular the current and / or voltage source to produce.

1. (i) der Grundkörper zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch isolierendes Material und/oder das Material PA 6.6 GF30 umfasst und/oder daraus besteht,
2. (ii) das erste Leitelement zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht,
3. (iii) das zweite Leitelement zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht,
4. (iv) das erste Verbindungselement zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht,
5. (v) das zweite Verbindungselement zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht,
6. (vi) das Widerstandselement zumindest bereichsweise in Form zumindest eines Thermistors ausgebildet ist, zumindest ein elektrisch leitfähiges Material und/oder ein Material mit einem positiven Widerstandskoeffizienten umfasst und/oder daraus besteht und/oder ein keramisches Material umfasst und/oder daraus besteht,
7. (vii) die erste Kontakteinheit zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht,
8. (viii) die zweite Kontakteinheit zumindest bereichsweise ein wärmeleitfähiges und/oder elektrisch leitfähiges Material umfasst und/oder daraus besteht.
9. (ix) das Trägerelement zumindest das Material PA 6.6 umfasst und/oder daraus besteht, und/oder
10. (x) das Beschichtungselement zumindest bereichsweise das Material PA 6.6 GF30 umfasst und/oder daraus besteht und/oder das Kopplungselement zumindest bereichsweise das Material PA 6.6 GF30 umfasst und/oder daraus besteht.

Advantageously, it may further be provided that

1. (i) the base body at least in some areas comprises a heat-conductive and / or electrically insulating material and / or comprises the material PA 6.6 GF30 and / or consists thereof,
2. (ii) the first guide element at least partially comprises and / or consists of a thermally conductive and / or electrically conductive material,
3. (iii) the second guide element at least partially comprises and / or consists of a thermally conductive and / or electrically conductive material,
4. (iv) the first connecting element at least partially comprises and / or consists of a thermally conductive and / or electrically conductive material,
5. (v) the second connecting element at least partially comprises and / or consists of a thermally conductive and / or electrically conductive material,
6. (vi) the resistance element is formed at least in regions in the form of at least one thermistor, comprises at least one electrically conductive material and / or a material with a positive coefficient of resistance and / or consists thereof and / or comprises a ceramic material and / or consists of
7. (vii) the first contact unit comprises and / or consists at least in regions of a thermally conductive and / or electrically conductive material,
8. (viii) the second contact unit comprises at least partially a thermally conductive and / or electrically conductive material and / or consists thereof.
9. (ix) the carrier element comprises at least the material PA 6.6 and / or consists thereof, and / or
10. (x) the coating element at least partially comprises the material PA 6.6 GF30 and / or consists thereof and / or the coupling element at least partially comprises the material PA 6.6 GF30 and / or consists thereof.

In a device according to the invention, it may also be preferred that the base body, the first guide element, the second guide element, the first connection element, the second connection element, the first contact element, the second contact element, the first contact unit, the second contact unit, the electrical conductor, the Coating element and / or the coupling element by means of an integrated metal injection molding process (IMKS method) is manufactured or produced and / or that the first guide element, the second guide element and / or the coating element at least partially covers the recess.

For the heating device it is further proposed that the base body, the first guide element, the second guide element and / or the coating element is at least substantially hollow at least partially, in particular cylindrical, and / or in at least one cross-sectional plane, preferably a cross-sectional plane perpendicular to the main extension direction of Basic body ( 1 ), has substantially a rectangular, round, elliptical and / or polygonal cross-sectional shape and / or the cross-sectional shape of a half rectangle, a half circle, a half ellipse and / or a half polygon.

Finally, it is proposed for the heating device according to the invention that the first guide element and / or the second guide element in each case at least partially substantially substantially half of the outer surface region of the body covered, in particular in the form of half a hollow cylinder is configured and / or that the first contact element and / or the second contact element opposite, in particular diametrically opposite, the recess, the receiving body and / or the coupling element is arranged on the first and second guide element.

With regard to a second aspect, the object is achieved by a method for producing a heating device, in particular a heating device according to the invention, comprising the steps: production and / or provision of a preform, processing of the preform by means of an integrated metal-plastic injection molding method (IMKS method) Application of at least one conductive layer on the preform and application of at least one further coating on the conductive layer.

It is particularly preferred that the preform is produced by means of a spraying process, by means of a casting process and / or by means of an injection molding process and / or the preform comprises and / or forms a base body and / or a receiving body.

Furthermore, the invention proposes that at least one resistance element, at least one carrier element, at least one guide element, at least one contact element, at least one contact unit and / or at least one connecting element is introduced into the injection mold before the IMKS process is carried out and / or by means of the IMKS process. Method at least one, in particular after performing the IMFC method with the resistance element, the connecting element, the contact unit and / or the contact element in at least indirectly electrically connected guide element is at least partially applied to the preform.

It is also preferred that the resistance element is at least partially introduced into the preform, the base body and / or the receiving body.

According to the invention, a method according to the invention can also be characterized in that the further coating is formed by means of a spraying process, by means of a casting process and / or by means of an injection molding process and / or the further coating is formed at least in regions by a coating element.

Finally, the invention preferably provides for the method that at least one coupling element is formed at least partially on the preform and / or the conductive layer and / or in the region of the contact element, preferably simultaneously with the application of the further coating, in particular formation of the coating element.

With regard to the first aspect, the invention is therefore based on the surprising finding that a particularly efficient heating device can be realized by integrally forming a base body with a receiving body and a resistance element arranged therein, including the necessary contacts, since the fluid can directly flow around the receiving body and itself thereby making the heat transfer from the corresponding heat-emitting elements to the fluid very advantageous. Thus, it has been recognized by the inventors above all that, in departure from the conventional solder or spring contacts, the contacts of the resistive element itself can be part of the heat transfer area and thus minimizes heat losses and the efficiency of the heater can be maximized.

In addition, at the same time a media-tight separation between fluid and resistive element is realized, whereby a particularly safe operation can be ensured because the fluid can come into contact only with the material of the receiving body or the body, but not the contact with electrical or other live Components is exposed.

In particular, it has been found, however, completely surprising that in the media-tight design according to the invention on seals and additional components as they are conventionally necessary can be completely dispensed with. As a result, the heater is not only compact and easy to manufacture but also therefore cost and low maintenance, which the reliability increases to the same extent.

The discovery by the inventors that the heating device is very advantageously produced by means of an IMCS process, that is to say an integrated metal-plastic injection molding process in which both a plastic material and a metallic material are introduced into a mold in one step, was also particularly surprising is, in particular the electrical contacts can be realized with it. In particular, the IMKS method has the advantage that the best possible connection of the metallic material, in particular in the form of the guide element acting as a heating element, can be achieved with a preform and the plastic material introduced in the same step. Thus, a solution of the compound, which could for example lead to leaks and the penetration of liquid, in particular due to capillary effects, prevents, at least reduced, be. Also, any tolerances between the plastic parts and the metallic parts, which could worsen a heat transfer, in particular of the guide elements through the body into the fluid avoided. Furthermore, the efficiency of the production is improved by the IMKS method, since the preparation of the preform, in particular of the base body, can be followed directly by the production of the metallic areas, without the need for manual intervention, for example for soldering or introducing prefabricated metal elements , It has also been recognized that gentle application of the resistance element can be achieved by using the IMKS method. Thus, such resistance elements, especially when designed as a PTC element on ceramic materials that must not be exposed to high mechanical and / or thermal stresses due to their brittle properties, since it is otherwise to Malfunction of this can come. The IMKS procedure ensures that the resistance element is treated and processed with care so that damage to it is prevented.

Further features and advantages of the invention will become apparent from the following description, are explained in the preferred embodiments of the invention with reference to schematic drawings.

• 1a zeigt einen Grundkörper sowie einen Aufnahmekörper einer erfindungsgemäßen Heizvorrichtung in einer perspektivischen Ansicht;
• 1b zeigt eine geschnittene Ansicht des in 1a gezeigten Gegenstandes in einer Ebene parallel zu einer Haupterstreckungsrichtung des Grundkörpers;
• 1c zeigt eine geschnittene Ansicht des in 1a gezeigten Gegenstandes in einer Ebene senkrecht zu einer Haupterstreckungsrichtung des Grundkörpers;
• 2a zeigt eine perspektivische Ansicht eines Trägerelements von schräg vorne;
• 2b zeigt eine perspektivische Ansicht eines Trägerelements von schräg hinten;
• 2c zeigt eine geschnittene Ansicht des in 2a und 2b dargestellten Trägerelements;
• 3a zeigt ein Widerstandselement in einer perspektivischen Ansicht;
• 3b zeigt ein von einem Trägerelement umgebenes Widerstandselement in einer perspektivischen Ansicht;
• 3c zeigt eine geschnittene Ansicht des in 3b gezeigten Gegenstandes;
• 4 zeigt eine Richtung in Bezug auf das Trägerelement und den Grundkörper bzw. Aufnahmekörper;
• 5a zeigt ein innerhalb des Aufnahmekörpers angeordnetes Trägerelement in einer perspektivischen Ansicht;
• 5b zeigt eine geschnitten perspektivische Ansicht des in 5a gezeigten Gegenstandes in einer Ebene senkrecht zu einer Haupterstreckungsrichtung des Grundkörpers;
• 6a zeigt den Grundkörper mit einem ersten und zweiten Kontaktelement in einer perspektivischen Ansicht;
• 6b zeigt eine geschnittene Ansicht des in 6a gezeigten Gegenstandes in einer Ebene parallel zu einer Haupterstreckungsrichtung des Grundkörpers;
• 6c zeigt eine geschnittene Ansicht des in 6a gezeigten Gegenstandes in einer Ebene senkrecht zu einer Haupterstreckungsrichtung des Grundkörpers;
• 7a zeigt den Grundkörper mit einem ersten und zweiten Leitelement und die über ein erstes und zweites Verbindungselement jeweils damit verbundenen ersten und zweiten Kontaktelemente in einer perspektivischen Ansicht;
• 7b zeigt den Gegenstand der 7a in einer anderen perspektivischen Ansicht;
• 7c zeigt eine geschnittene Ansicht des in 7a gezeigten Gegenstandes in einer Ebene parallel zu einer Haupterstreckungsrichtung des Grundkörpers;
• 7d zeigt den Gegenstand der 7c in einer anderen perspektivischen Ansicht;
• 8 zeigt einzelne Merkmale der Heizvorrichtung in einer perspektivischen Ansicht;
• 9a zeigt eine erfindungsgemäße Heizvorrichtung in einer perspektivischen Ansicht;
• 9b zeigt eine geschnittene Ansicht des in 9a gezeigten Gegenstandes in einer Ebene parallel zu einer Haupterstreckungsrichtung der Heizvorrichtung; und
• 9c zeigt eine geschnittene Ansicht von Teilen des in 9a gezeigten Gegenstandes in einer Ebene senkrecht zu einer Haupterstreckungsrichtung der Heizvorrichtung.

Showing:

• 1a shows a main body and a receiving body of a heating device according to the invention in a perspective view;
• 1b shows a sectional view of the in 1a shown object in a plane parallel to a main extension direction of the body;
• 1c shows a sectional view of the in 1a shown object in a plane perpendicular to a main extension direction of the body;
• 2a shows a perspective view of a support element obliquely from the front;
• 2 B shows a perspective view of a support member obliquely from behind;
• 2c shows a sectional view of the in 2a and 2 B illustrated carrier element;
• 3a shows a resistance element in a perspective view;
• 3b shows a resistive element surrounded by a carrier element in a perspective view;
• 3c shows a sectional view of the in 3b shown item;
• 4 shows a direction with respect to the support member and the body or receiving body;
• 5a shows a arranged within the receiving body carrier element in a perspective view;
• 5b shows a cutaway perspective view of the in 5a shown object in a plane perpendicular to a main extension direction of the body;
• 6a shows the main body with a first and second contact element in a perspective view;
• 6b shows a sectional view of the in 6a shown object in a plane parallel to a main extension direction of the body;
• 6c shows a sectional view of the in 6a shown object in a plane perpendicular to a main extension direction of the body;
• 7a shows the main body with a first and second guide element and the first and second connection elements respectively connected thereto via a first and second contact elements in a perspective view;
• 7b shows the subject of the 7a in another perspective view;
• 7c shows a sectional view of the in 7a shown object in a plane parallel to a main extension direction of the body;
• 7d shows the subject of the 7c in another perspective view;
• 8th shows individual features of the heater in a perspective view;
• 9a shows a heating device according to the invention in a perspective view;
• 9b shows a sectional view of the in 9a shown in a plane parallel to a main extension direction of the heater; and
• 9c shows a sectional view of parts of the in 9a shown in a plane perpendicular to a main extension direction of the heater.

In 1a is a basic body 1 , which shows a preform, in particular preform in the sense of the inventive method, a heating device according to the invention shown in a perspective view, which is designed in particular cylindrical and a first volume range 3 includes. This first volume area 3 includes at least one fluid path, so therefore within the first volume range 3 a fluid is feasible. The base body comprises at least one thermally conductive and electrically insulating material, in particular the material PA 6.6 GF30.

1b shows a sectional view of the in the 1a shown object in a plane parallel to a main extension direction of the body 1 , As in 1b is shown is with the main body 1 integral with a receiving body 5 formed, which a second volume range 7 includes and this second volume range 7 simultaneously with respect to the first volume range 3 separates.

1c shows a sectional view of the in 1a shown object in a plane perpendicular to a main extension direction of the base body, in particular in a plane perpendicular to the in 1b selected cutting plane. It can be seen on the one hand that the receiving body 5 the first volume range 3 opposite the second volume area 7 actually separates media-tight. On the other hand, based on the illustration in 1c it can be seen that the basic body 1 or the receiving body 5 at least a second guide element 9 having in the form of a groove.

2a shows a carrier element 11 in a perspective view obliquely from the front and 2 B the carrier element 11 in a perspective view obliquely from behind. A cut view is in 2c played. The carrier element 11 preferably comprises the material PA 6.6. The carrier element 11 is at least partially within the receiving body 5 arranged. For this purpose, the support element 11 at least a first guide element 13 in the form of a projection, which with the complementary structure in the form of the second guide element 9 interacts. In addition, the support element 11 preferably at least one spacer element 14 on. This is preferred on at least one side of the carrier element 11 arranged.

The carrier element 11 surrounds a in 3a Shown resistive element 15 at least regionally according to the representation of 3b , 3c shows a sectional view of the representation of 3b , The resistance element 15 comprises at least one electrically conductive material having a positive resistance coefficient (PTC), preferably a ceramic material and / or in the form of a thermistor. The resistance element can also serve itself as an additional heating element.

The carrier element 11 is here including the resistive element 15 in the receiving body 5 arranged like this 4 illustrated. With the help of the first and second guide element 13 . 9 can between the main body 1 or receiving body 5 and the carrier element 11 a positive connection between these two elements in a direction substantially perpendicular to the direction of insertion e the carrier element 11 in the receiving body 5 or basic body 1 be achieved. The carrier element 11 as well as the resistance element 15 is in the receiving body 5 additionally stabilized by the carrier element 11 and / or the resistive element 15 mediated by the spacer element 14 directly or indirectly on at least one inner wall portion of the receiving body 5 can support or can.

The carrier element 11 including the resistance element 15 is by one of the main body 1 having recess 17 through along the direction e in the receiving body 5 arranged. Wealth of the recess 17 is the second volume range 7 with the body 1 connected to surrounding volume.

As in 5a is shown, the support member closes 11 essentially at least partially flush with at least one outer surface area 19 of the basic body 1 from. Out 5b becomes clear that through the support element 11 and the resistance element 15 the second volume range 7 in a first partial volume range 21 and a second partial volume range 23 is divided.

As in 6a is shown in a perspective view, the heating device according to the invention further comprises at least a first contact element 25 for producing an electrically conductive connection with at least one first pole of at least one current and / or voltage source and a second contact element 27 for producing an electrically conductive connection with at least one second pole of the current and / or voltage source. The first contact element 25 and the second contact element 27 are opposite the recess 17 and at the same time with respect to the receiving body 5 arranged, in particular from the two sectional views of the 6b and 6c clearly shows.

From the perspective view of 7a it becomes visible that the heating device according to the invention further comprises at least one on at least a first outer surface area 29 of the basic body 1 arranged first guide element 31 , which represents a conductive layer in the sense of the method according to the invention, and at least one on at least a second outer surface area 33 of the basic body 1 arranged second guide element 35 , which represents a further conductive layer in the sense of the method according to the invention comprises. The first guiding element 31 comprises at least one thermally conductive and electrically conductive material. Also the second guide element 35 comprises at least one thermally conductive and electrically conductive material.

The first guiding element 31 is indirectly by means of at least a first connecting element 37 electrically conductive with the first contact element 25 connected and the second guide element 35 indirectly by means of at least one second connecting element 39 electrically conductive with the second contact element 27 connected.

It is from the 7a and the 7b clear that the first guiding element 31 and the second vane 35 insofar as they are not directly electrically connected to one another. It is also in 7b recognizable that a first contact unit 41 within the (in 7b not shown separately) first partial volume range and a second contact unit 43 within the (in 7b not shown separately) second partial volume range 23 is arranged. In particular, the first or second contact unit fills 41 . 43 the first or second volume range 21 . 23 completely off. The first contact unit 41 comprises at least one thermally conductive and electrically conductive material. Also the second contact unit 43 comprises at least one thermally conductive and electrically conductive material. This is particularly advantageous contacting of the resistive element 15 with the first and second guide element 31 . 35 via the first or second contact unit 41 . 43 reached. Furthermore, it is achieved that also the area of the resistance element 15 or the receiving body contributes to the heat transfer to the fluid and is integrated in the heat transfer area. In particular, a particularly compact arrangement is given. The 7c and 7d each show a sectional view of the subject of 7a in two different perspective views.

8th shows a section of the in 7a features shown without the body 1 , In other words, in 8th the carrier element 11 , the first contact element 25 , the second contact element 27 , the first guiding element 31 , the second guiding element 35 , the first connecting element 37 , the second connecting element 39 , the first contact unit 41 and the second contact unit 43 shown.

Based on this presentation of the 8th it is clear that the first contact unit 41 spatially or electrically between the (in 8th not apparent) in 3a illustrated resistance element 15 and the first guide element 31 is arranged and electrically conductively connected to these and that the second contact unit 43 spatially or electrically between the (in 8th not apparent) in 3a illustrated resistance element 15 and the second guide element 35 is arranged and connected to each electrically conductive. The said compact construction is evident evident here.

Thus, as shown above, although the first guide element 31 and the second guide element 35 not directly electrically connected to each other, the first guide element 31 and the second guide element 35 However, they are indirectly only through the (in 8th not apparent) in 3a illustrated resistance element 15 electrically connected to each other, each with a serial circuit of the first and second contact units 41 . 43 in the electrically conductive path.

9a shows the total with 45 designated according to the invention heater 45 in a perspective view. This further comprises at least one the basic body, the first guide element, the second guide element and the recess at least partially covering the coating element 47 , wherein the coating element is a coating in the sense of the method according to the invention. In addition, the heater includes 45 at least one, the first and the second contact element 25 . 27 at least partially surrounding and integral with the coating element 47 trained coupling element 49 , The coupling element 49 makes it possible, a detachable connection, in particular a plug connection, with at least one two means for electrically conductive interaction with each of the first and second contact element 25 . 27 structure of the current and / or voltage source produce. In other words, the coupling element allows 49 a connection to the power and / or voltage source.

One in a plane parallel to the main extension direction of the heater 45 cut view of the heater 45 is in 9b shown.

9c shows a sectional view of the heater 45 in a plane perpendicular to the main direction of extension of the heater 45 , wherein the coupling element is not shown. Out 9c it is once again clear that the first guide element 31 and the second guide element 35 in each case at least in sections substantially one half of the outer surface area, namely the first outer surface area and the second outer surface area, of the base body 1 covered, in particular arranged thereon, preferably in each case in the form of a half-hollow cylinder is designed. It can also be seen that the coating element 47 both the main body 1 , the first and second guiding element 31 . 35 , the carrier element 11 and the recess 17 covering at least in certain areas.

Also, the spatial and electrical arrangement of the first and second contact unit 41 . 43 between each of the resistive element 15 on the one hand and the first and second guide element 31 . 35 on the other hand, within the receiving body 5 including the electrically conductive connection between the resistance element 15 and each first / second contact unit 41 . 43 , first / second guide element 31 . 35 , first / second connecting element 37 . 39 and first / second contact element 25 . 27 is out 9c again clearly visible.

By to the first and second contact element 25 . 27 in each case a first or second pole the power and / or voltage source is connected, a circuit can be closed and a current flow between the two poles can be achieved. As a result of doing so also in the first and second guide element 31 . 35 current flow occurring heats the first and second guide element 31 . 35 according to the principle of resistance heating due to ohmic losses.

The heat is transferred from the first and second guide element 31 . 35 on the main body 1 and from there to the guided within the fluid path or first volume fluid and thus allows its heating. In addition, as a result of the current flow, the first and second contact units likewise heat up accordingly 41 . 43 as well as the resistance element 15 , Because both the first and second contact unit 41 . 43 as well as the resistance element 15 completely in the receiving body 5 are arranged heat from these also on the receiving body 5 transfer. As the receiving body 5 In turn, completely protrudes into the first volume range and thus the receiving body is in contact with the fluid within the fluid path, a particularly advantageous possibility is opened to realize an efficient heat transfer to the fluid, in particular with the participation of the contacts of the resistive element 15 in the form of the first and second contact unit 41 . 43 ,

Property of the positive resistivity coefficient (PTC) material of the resistive element 15 the current flow between the first and second contact element takes place 25 . 27 temperature dependent. In particular, at lower temperatures, in particular the resistance element 15 , a higher current flow than at higher temperatures. As a result, the individual components, in particular the first and second guide element, heat up 31 . 35 and the first and second contact units 41 . 43 as well as the resistance element 15 at lower temperatures stronger than at higher temperatures. As a result, in turn, the fluid can preferably be heated more or less, if certain temperature values are exceeded or exceeded. For example, the icing of the fluid path can be specifically prevented and, in principle, a fluid can be heated to a defined temperature or heated or held thereon.

In particular, however, is a media-tight heating device 45 In the present case, this is implemented particularly advantageously, since the first volume area and the second volume area are separated from one another by media. In addition, by the heater 45 the resistance element 15 in particular in the case that it consists of and / or comprises a ceramic material and / or that it is brittle during the manufacture of the heating device 45 and during their use protected and thereby damage to the resistance element 15 prevented.

In the present embodiment, the main body 1 , the first guiding element 31 , the second guiding element 35 , the first connecting element 37 , the second connecting element 39 , the first contact unit 41 , the second contact unit 43 , the coating element 47 and the coupling element produced or produced by means of an integrated metal-plastic injection molding process. In addition, the first guide element covers 31 , the second guiding element 35 and / or the coating element 47 the recess 17 at least partially off.

In the following, the preparation of the heater 45 describe according to the inventive method. First, a preform, in particular pre-molded part in the form of the particular in the 1a to 1c illustrated basic body 1 produced.

In a further step, as in 4 indicated in the volume range 7 of the recording body 5 that in the 2a to 2c represented carrier element together with the resistance element 15 introduced, so the assembly, as in the 3b and 3c is shown. This creates the in the 5a and 5b illustrated configuration.

The resulting component, as it is in 6a to 6c is introduced into a mold for carrying out the IMCS process. Further, in the form and the contact element 25 and 27 inserted. In the 6a to 6c However, the form for the IMKS procedure is not shown.

After the implementation of the IMKS procedure is in the 7a to 7d illustrated configuration in the form of an IMKS injection molding. The IMKS process made the guiding elements, which act in particular as heating elements 31 and 35 educated. At the same time, the connecting elements also become in the IMKS process step 37 . 39 for producing an electrical connection between the guide elements 31 . 35 and the contact elements 25 . 27 educated.

In particular in 8th it can be seen which elements are made in the IMCS process step. In 8th was the basic body for clarity 1 not shown.

In a final step is then in an injection molding in particular in the area acting as heating elements guide elements 31 . 35 the coating element 47 educated. At the same time, we also use the coupling element in this step 49 integral with the coating element 47 educated.

Due to the use of the method according to the invention, the heater can be produced for example in a 3-station index plates injection molding tool.

The features disclosed in the foregoing description, in the claims and in the drawings may, both individually and in any combination, be essential to the invention in its various embodiments.

LIST OF REFERENCE NUMBERS

1

body

3

volume range

5

receiving body

7

volume range

9

guide element

11

support element

13

guide element

14

spacer

15

resistive element

17

recess

19

surface area

21

Part volume range

23

Part volume range

25

contact element

27

contact element

29

surface area

31

vane

33

surface area

35

vane

37

connecting member

39

connecting member

41

Contact unit

43

Contact unit

45

heater

47

coating member

49

coupling element

e

direction

Claims (17)

Heating device (45) for controlling the temperature of at least one fluid at least one main body (1) enclosing at least a first volume region (3) at least in regions, at least one receiving body (5) enclosing at least a second volume region (7) at least in regions and separating it from the first volume region (3), at least one resistance element (15) which is at least partially arranged or arrangeable in the receiving body (5), - At least one on at least a first outer surface region (29) of the base body (1) arranged first guide element (31), wherein the first guide element (31) is electrically or directly connected directly or indirectly with the resistance element (15). Heating device after Claim 1 characterized by at least one second guide element (35) arranged on at least one second outer surface region (33) of the base body (1), wherein in particular the first guide element (31) and the second guide element (35) are directly or indirectly exclusively connected via the resistance element (15 ) are electrically connected to each other. Heating device after Claim 1 or 2 characterized by at least one first contact element (25) directly or indirectly electrically conductively connected to the first conducting element (31) for producing an electrically conductive connection with at least one first pole of at least one current and / or voltage source and / or at least one with the second Guide element (35) directly or indirectly electrically conductively connected second contact element (27) for producing an electrically conductive connection with at least one second pole of the current and / or voltage source. Heating device according to one of the preceding claims, characterized in that (i) the base body is at least partially tubular and / or the first volume region (3) comprises at least one fluid path for guiding a fluid and / or represents, and / or within the fluid path and (ii) the receiving body (5) is at least partially integral with the base body (1) and / or at least partially or completely protruding into the first volume region (3), (iii) the base body (1) has at least one recess (17), (iv) the receiving body (5) is in contact with the fluid at least in regions and / or the second volume region (7) opposite the first Volume region (3), preferably media-tight and / or hermetically, separated, (v) the second volume region (7) at least partially connected to the basic body (1) surrounding volume assets of the recess (17) or connectable, (vi) the first Guide element (31) is electrically or indirectly connected to the first contact element (25) directly or indirectly by means of at least one first connection element, (vii) the second guide element (35) is electrically or indirectly conductively connected to the second contact element (27) directly or indirectly by means of at least one second connection element. (viii) the device further comprises at least one first contact unit (41), preferably electrically and conductively connected to the resistance element (15) and / or the first guide element (31), in particular arranged spatially and / or electrically therebetween, and / or or furthermore at least one, preferably electrically conductively connected to the resistance element (15) and the second guide element (35), in particular spatially and / or electrically arranged between these second contact unit (43), and / or (ix) the electrically conductive connection between the first guide element (31) and the second guide element (35), in particular between the first guide element (31) on the one hand and the first contact unit (41) and / or the resistance element (15) on the other hand and / or between the second guide element (35) on the one hand and the second contact unit (43) and / or the resistance element (15) on the other hand, at least in sections, at least one electrical Conductor, in particular arranged on at least one outer surface region (19) of the base body (1) and / or configured in the form of at least one electrical conductor track comprises. Heating device (45) according to one of the preceding claims, characterized in that (i) the device further comprises at least one, preferably at least partially and / or partially within the receiving body (5) arranged support element (11), wherein the carrier element (11) the resistance element (15) at least partially surrounds, (ii) the carrier element (11) and / or the resistance element (15) the second volume region (7), in particular in at least a first partial volume region (21) and at least a second partial volume region (23), wherein, preferably, the first partial volume region (21) is substantially the same size as the second partial volume region (23), (iii) the first contact unit (41) is arranged completely or at least partially and / or regionally within the first partial volume region (21) , preferably completely fills it and / or the second contact unit (43) completely or at least partially and / or it is arranged in regions within the second partial volume range (23), preferably completely fills it, (iv) the carrier element (11), in particular at least one peripheral portion of the carrier element (11), at least partially flush against at least one inner wall portion of the receiving body (5) , in particular the first partial volume region (21) and the second partial volume region (23) are sealed from one another in a media-tight manner, (v) the carrier element (11) and / or the resistance element (15) are substantially at least partially flush with the outer surface region (19) of the main body ( 1), (vi) the carrier element (11) has at least one first guide element (13), in particular at least partially in the form of at least one groove and / or a protrusion which has a complementary structure of the base body (1) and / or receiving body (FIG. 5) cooperates, in particular a positive connection between the support element (11) un d receiving body (5) or base body (1), preferably in a direction substantially perpendicular to the direction of insertion of the carrier element (11) in the receiving body (5) or base body (1), manufactures, and / or (vii) of the main body ( 1) and / or the receiving body (5) at least one second guide element (9), in particular as the complementary structure, in particular in the form of a projection and / or a groove having a complementary structure of the support member (11), in particular the first Guiding element (13), cooperates, in particular a positive connection between the carrier element (11) and receiving body (5) or base body (1), preferably in a direction substantially perpendicular to the direction of insertion of the carrier element (11) in the receiving body (5) or Basic body (1), manufactures. Heating device (45) after Claim 3 , characterized in that the carrier element (11) at least one spacer element (14), preferably two or a plurality of spacer elements, in particular on at least one side of the carrier element (11), preferably at least two, preferably opposite, or a plurality of sides the support element (11), in particular for direct or indirect support of the support element (11) and / or resistance element (15) on at least one inner wall portion of the receiving body (5), preferably at least two, preferably opposed, or a plurality of inner wall portions of the receiving body (5). Heating device (45) according to one of the preceding claims, characterized in that the device further comprises at least one of the base body (1), the first guide element (31), the second guide element (35), the carrier element (11) and / or the recess (17) at least partially and / or at least partially completely covering the coating element (47) and / or further at least one, in particular the first and / or the second contact element ( 25, 27) at least partially surrounding and / or integrally formed with the coating element (47) formed, coupling element (49), which is preferably suitable, at least one permanent and / or detachable connection, in particular a crimp, Klips-, bayonet and / or plug-in connection, with at least one, preferably comprising at least one, preferably two, means for, in particular to produce an electrically conductive connection, cooperation with each of the first and / or second contact element (25, 27), structure, in particular the current and / or voltage source to produce. Heating device (45) according to one of the preceding claims, characterized in that (i) the base body (1) at least partially comprises a heat-conductive and / or electrically insulating material and / or the material PA 6.6 GF30 and / or consists thereof, (ii) the first guide element (31) at least partially comprises a heat-conductive and / or electrically conductive material and / or consists thereof, (iii) the second guide element (35) at least partially comprises and / or consists of a thermally conductive and / or electrically conductive material ( iv) the first connecting element (37) at least partially comprises a thermally conductive and / or electrically conductive material and / or consists thereof, (v) the second connecting element (39) comprises at least partially a thermally conductive and / or electrically conductive material and / or consists thereof , (vi) the resistance element (15) at least partially in the form of at least one thermistor au is formed, comprises at least one electrically conductive material and / or a material with a positive coefficient of resistance and / or consists thereof and / or comprises a ceramic material and / or consists thereof, (vii) the first contact unit (41) at least partially a thermally conductive and / or comprises electrically conductive material and / or consists thereof (viii) the second contact unit (43) at least partially comprises a thermally conductive and / or electrically conductive material and / or consists thereof, (ix) the carrier element (11) at least the material PA 6.6 comprises and / or consists of, and / or (x) the coating element (47) at least partially comprises an electrically insulating material PA 6.6 GF30 and / or consists thereof, and / or the coupling element (49) at least partially an electrically insulating material PA 6.6 GF30 includes and / or consists of. Heating device (45) according to one of the preceding claims, characterized in that the base body (1), the first guide element (31), the second guide element (35), the first connection element (37), the second connection element (39), the first Contact element (25), the second contact element (27), the first contact unit (41), the second contact unit (43), the electrical conductor, the coating element (47) and / or the coupling element (49) by means of an integrated metal-plastic injection molding Method (IMKS method) is manufactured or can be produced and / or that the first guide element (31), the second guide element (35) and / or the coating element (47) at least partially covers the recess (17). Heating device (45) according to one of the preceding claims, characterized in that the base body (1), the first guide element (31), the second guide element (35) and / or the coating element (47) at least substantially at least partially hollow, in particular cylindrical , Is formed and / or in at least one cross-sectional plane, preferably a cross-sectional plane perpendicular to the main extension direction of the base body (1), substantially a rectangular, round, elliptical and / or polygonal cross-sectional shape and / or the cross-sectional shape of a half rectangle, a half circle, a has half ellipse and / or half a polygon. Heating device (45) according to one of the preceding claims, characterized in that the first guide element (31) and / or the second guide element (35) in each case at least partially substantially substantially half of the outer surface region of the base body (1) covered, in particular in each case in the form of a half hollow cylinder and / or that the first contact element (25) and / or the second contact element (27) opposite, in particular diametrically opposite, the recess (17), the receiving body (5) and / or the coupling element (49 ) is arranged on the first and second guide element (31, 35). Method for producing a heating device, in particular a heating device (45) according to one of the preceding claims, comprising the steps: Production and / or provision of a preform (1), processing of the preform (1) by means of an integrated metal-plastic injection molding process (IMKS process) for applying at least one conductive layer (31, 35) to the preform (1) and applying at least one further coating (47) on the conductive layer (31, 35). Method according to Claim 12 , characterized in that the preform is produced by means of a spraying method, by means of a casting method and / or by means of an injection molding process and / or the preform comprises a base body (1) and / or a receiving body (5) and / or forms. Method according to Claim 12 or 13 , characterized in that at least one resistance element (15), at least one support element (11), at least one guide element (9, 13), at least one contact element (25, 27), at least one contact unit (41, 43 ) and / or at least one connecting element (37, 39) is introduced into the injection mold and / or by means of the IMCS process at least one, in particular after carrying out the IMCS process with the resistance element (15), the connecting element (37, 39), the contact unit (41, 43) and / or the contact element (25, 27) in at least indirectly electrically connected guide element (31, 35) is at least partially applied to the preform (1). Method according to Claim 14 , characterized in that the resistance element (15) is at least partially introduced into the preform, the base body (1) and / or the receiving body (5). Method according to one of Claims 12 to 15 , characterized in that the further coating is formed by means of a spraying process, by means of a casting process and / or by means of an injection molding process and / or the further coating is formed at least in regions by a coating element (47). Method according to one of Claims 12 to 16 , characterized in that at least one coupling element (49) is formed at least in regions on the preform (1) and / or the conductive layer (31, 35) and / or in the region of the contact element (25, 27), preferably simultaneously with the application of the further coating, in particular formation of the coating element (47).

Images