DE10208152A1 - Apparatus for exchanging heat - Google Patents

Abstract

The device has a first connection material at least in a region in which at least two components of a first heat exchange unit are close or in contact that fixes the arrangement of these components relative to each other. The material is chose to have a temperature-dependent property identical to at least one of the component materials. AN Independent claim is also included for the following: an arrangement for cooling or heating air, especially for a motor vehicle.

Description

The present invention relates to a device for Exchange of heat. In particular, the present invention relates Invention a device for exchanging heat for a Motor vehicle.

Devices for exchanging heat are being used today Application, for example in motor vehicles, Room air conditioning systems and the like to heat a working medium to supply or withdraw from it. Such Working medium, for example, a liquid, a gas or be a gas mixture.

The present invention will be described below using the example of electric heating device for heating the interior of a Motor vehicle described. It is noted, however, that the device according to the invention also for others Applications is suitable.

Typically, there is an electric heater for Heating air for use in a motor vehicle electric heating elements and heat conductors to which the Warming air flows past. As electrical heating elements For example, ceramic heating elements with positive Temperature coefficients (PTC heating elements) used.

The heat emitted by the heating elements is by means of Heat conductors, which for example in the form of corrugated fins or lamellas are executed and which in a to be heated Air flow are arranged, discharged.

It is known to have several such heating elements and heat conductors to assemble a heating block, wherein the heating elements and the Heat conductor by a force acting on them, which Usually generated by a spring, pressed together become. The mechanical stress generated by this spring further serves to the heating block in a receiving device so to clamp that the heating block within the Recording device is held.

Object of the present invention is to provide a Apparatus for exchanging heat that is designed so that the device has a simplified construction and that their heating properties in a simple manner given in each case Purpose can be adjusted.

According to claim 1, the inventive device for Exchange of heat at least a first heat exchanger assembly on, which consists of at least a first and a second and a third component. The components of the first Heat exchanger assembly to touch so that a Exchange of thermal and / or electrical energy between allows the components.

Preferred embodiments of the device according to the invention for the exchange of heat are the subject of the dependent claims.

A particularly preferred embodiment of a first Heat exchanger assembly accordingly has at least a first Component on which at least one electric heating element includes. This first component comes with an electric Power source connected. The electric heating element of the first Component changes depending on the heating element flowing through electric current its temperature.

Under the term heating element in the sense of the present Invention is an element or a group of elements too understand by which electrical energy into heat energy is converted. Such heating elements can, for example ceramic heating elements with positive temperature coefficients (PTC heating elements). However, within the scope of the invention also other heating elements, such as resistance Heating elements, plasma heating elements or the like use Find.

Furthermore, the first heat exchanger assembly at least a second component, for example, corrugated ribs or lamellar and is made of thermally conductive Material exists. This second component serves the Exchange heat with a heat exchanger assembly flowing medium.

The medium flowing around the first heat exchanger assembly is preferably a gaseous medium or a liquid medium. This is particularly preferably the first heat exchanger assembly circulating medium air, which in a motor vehicle in the Vehicle interior is promoted to temper this.

The first heat exchanger assembly also has at least one third component, which between at least a first Component of the first heat exchanger assembly and at least a second component of the first heat exchanger assembly is arranged. This contact element is designed so that it thermal and / or electrical energy conducts. Preferably There is the third component of the first heat exchanger assembly made of at least one material with defined thermal and / or electrical conductivities, such as Metals or metal alloys or other materials with similar thermal and / or electrical properties.

The third component of the first heat exchanger assembly as well the first and / or the second component of the first Heat exchanger assembly to touch such that between the contacting components of the first heat exchanger assembly a transition of thermal and / or electrical energy is possible.

According to the invention, at least in a part of the areas, in which are the components of the first heat exchanger assembly touching a first connecting material provided, which the Arrangement of the components fixed to each other. In this way the contact of the components is permanently maintained and there are no unwanted changes in efficiency Exchange of thermal and / or electrical energy between on the components.

In a further preferred embodiment of the present invention Invention has the inventive device for replacement of heat at least a second heat exchanger assembly. Similar to the first heat exchanger assembly, the second Heat exchanger assembly at least a second component, for example, corrugated or lamellar is executed and made of thermally conductive material. The second component of the second heat exchanger assembly serves also the exchange of heat with the Heat exchanger assembly around flowing medium.

The inventive device for exchanging heat is further characterized in that the second Heat exchanger assembly has a first component, which in Unlike the first component of the first Heat exchanger assembly defined from a material electrical and thermal conductivity. The Temperature of the first component of the second Heat exchanger assembly is essentially independent from an electric current flowing through this component.

Moreover, the second heat exchanger assembly also has one third component, which between at least a first Component of the second heat exchanger assembly and at least a second component of the second heat exchanger assembly is arranged. Preferably, this contact element is so Running that there is thermal and / or electrical energy passes.

The third component of the second heat exchanger assembly consists preferably of a material with defined thermal and / or electrical conductivities, such as Metals or metal alloys or other materials with similar thermal and / or electrical properties.

In a further embodiment of the present invention touch the third component of the second Heat exchanger assembly and the first and / or the second Component of the second heat exchanger assembly such that between the touching components of the second Heat exchanger assembly a transition of thermal and / or electrical energy is enabled.

According to the invention, at least in a part of the areas, in which are the components of the second heat exchanger assembly touching a second connecting material provided, which the Arrangement of the components fixed to each other. In this way the contact of the components is permanently maintained and there are no unwanted changes in efficiency Exchange of thermal and / or electrical energy between on the components.

In a preferred embodiment of the present invention correspond to the dimensions of the second heat exchanger assembly at least partially the dimensions of the first Heat exchanger assembly. In a further embodiment of the present invention, the dimensions of the second correspond Heat exchanger assembly at least partially the dimensions a plurality of juxtaposed first heat exchanger modules.

Such first and second heat exchanger assemblies with Different configurations can be considered standardized Modules for the production of devices according to the invention for Exchange of heat use find. This can be easy on Way an adaptation of the heating properties to each required requirements. The production of Devices for exchanging heat from such standardized modules with first and / or second Heat exchanger modules thus represents a modular system for Such devices.

In a preferred embodiment of the present invention are used for producing a device according to the invention for Exchange of heat first and / or second Heat exchanger assemblies in any quantity and order arranged together. At least parts of these touch each other Components of at least two heat exchanger assemblies such, that between the contacting heat exchanger assemblies a Transition of thermal and / or electrical energy is possible.

According to the invention, at least in a part of the areas, in which are the components of two heat exchanger modules touching a third connecting material provided, which the Arrangement of the heat exchanger assemblies fixed to each other. On this way, the touch of the heat exchanger assemblies permanently maintained and there are no unwanted Changes in efficiency when replacing thermal and / or electrical energy between the Heat exchanger assemblies on.

The composition of the first, second and / or third Connecting material is chosen so that at least one of the temperature dependent material property of the first, second and / or third bonding material, such as the Thermal expansion coefficient, the elasticity, the Plasticity, stiffness or the like, the same Material property of at least one of the production of the first, second and / or third component used Materials of the first and / or second heat exchanger assembly at least partially.

Preferably, this corresponds to the temperature dependent Material property of the first, second and / or third Connecting material of the same material property at least one of the materials from which the first, second and / or third Component of the first and / or second heat exchanger assembly exist in the temperature range between -50 ° C and + 300 ° C, preferably in the temperature range between -30 ° C and + 250 ° C, particularly preferably in the temperature range between -30 ° C and + 170 ° C, at least in part, preferably substantially Completed.

In this way it is avoided, for example, by different coefficients of thermal expansion of the for Components of the heat exchanger assemblies used materials and the first, second and / or third bonding material cracking in the connecting materials or in the Components of the heat exchanger modules occurs. Such Cracking could, on the one hand, increase the stability of the components Heat exchanger assemblies to each other and the stability of the Heat exchanger assemblies to each other and the stability of affect the entire device for the exchange of heat. In addition to the stability could also also the Efficiency of heat and / or electricity exchange between the components of the heat exchanger modules or between the Heat exchanger assemblies are affected.

In a preferred embodiment of the present invention is the composition of the first, second and / or third Connecting material is chosen so that it is the replacement of thermal and / or electrical energy between the Components of the heat exchanger assemblies and / or between the Heat exchanger assemblies favors.

In a further embodiment of the present invention is the composition of the first, second and / or third Connecting material is chosen so that there is a change the surface finish of the connection material adjacent surfaces of the components of Heat exchanger assemblies inhibits, preferably prevented. In particular, the first, second and / or third prevents Connecting material a change in the oxidation number of the connecting material adjacent material of the components of Heat exchanger assemblies. The first, second and / or third Connecting material thus provides one at the same time Corrosion protection, which is a corrosion, in particular a Oxidation of the surfaces of the components of Heat exchanger assemblies inhibits, preferably prevented.

In a further embodiment of the present invention the first, second and / or third connecting material surrounds the Components of the heat exchanger modules essentially Completed.

In a preferred embodiment of the present invention The first components of the first heat exchanger assembly are so arranged that they are a predetermined distance from each other and from the outer boundaries of the heat exchanger assembly respectively. In a preferred embodiment, the first Components of a first heat exchanger assembly arranged so that they have an offset to the first components of at least one further heat exchanger assembly arranged to a better heat distribution over the entire heating block too to reach.

According to a preferred embodiment of the present invention are the first components of the second heat exchanger assembly standardized functional elements whose physical Properties are predefined in the way that these are both conduct electricity and thermal energy, electrical Electricity and thermal energy isolate electricity conduct and isolate thermal energy or electrical power isolate and conduct thermal energy.

In a preferred embodiment of the present invention is the device for exchanging heat thereby characterized in that the heat exchanger assemblies combined so be that a given amount of heat, between the whole Apparatus for exchanging heat and the Heat exchange components circulating medium is interchangeable.

In particular, the combination of first heat exchanger assemblies with second heat exchanger modules allows the specification of the maximum amount of heat to be dissipated the entire device to the the heat exchanger components flowing around medium.

In another embodiment of the present invention the device for exchanging heat characterized that the heat exchanger assemblies are combined so that the Amount of heat, which between a portion of the device for, exchange of heat and the heat exchanger assemblies flowing medium, regardless of the amount of heat, which between another part of the device for, Exchange of heat and the heat exchanger assemblies flowing medium is exchangeable, is definable.

Preferably, the second components of the first Heat exchanger assembly and / or the second components of second heat exchanger assembly cooling fins, which of the electric heating elements, preferably the PTC heating elements remove discharged heat and with the medium flowing around them, For example, air, replace. Preferably, these are Cooling fins wavy cooling fins or corrugated fins that out an electrically and / or thermally conductive material, such as Example aluminum or a similar material, manufactured become.

The physical properties of the first component of second heat exchanger assembly are at a preferred Embodiment of the device according to the invention in particular so defined that a transport of thermal and / or electrical energy is favored.

In a further preferred embodiment of the Device according to the invention are the physical Properties of the first component of the second Heat exchanger assembly defined so that a transport of thermal and / or electrical energy is inhibited.

The first component of the second heat exchanger assembly consists Accordingly, from a material which the previously described has physical properties and which of this Reason the transport of thermal and / or electrical Energy favors or inhibits.

Such a material may be, for example, a material which conducting electricity and conducting heat or which is in the is essentially electricity-insulating and heat-insulating or which conducting electricity and substantially is heat-insulating or substantially electricity-insulating and is thermally conductive. Both the heat-insulating effect as also the electricity-insulating effect can hereby be different pronounced. There is also the Possibility of a material with variable electricity and electricity To use heat conduction properties, these Properties influenced by an impact on the material can be.

The line of an electric current can hereby for example by the transport of free charge carriers within the material from which the first component of the second heat exchanger assembly is constructed, done.

A transmission of thermal energy can, for example by a transmission of molecular vibrations, in particular Brownian motion, by means of molecular collisions or the like respectively. Preferably, the propagation of heat energy occurs within the material from which the first component of the second heat exchanger assembly is constructed analogous to the Laws of the Propagation of Matter by Diffusion.

A preferred embodiment of the present invention is characterized in that the shape and dimension of the first Component of the second heat exchanger assembly (standardized Functional element) is selected so that the flow resistance which the first component of the second heat exchanger assembly the medium flowing around opposes them in a predetermined Relative to the flow resistance is the first Component of the first heat exchanger assembly they opposes the flowing medium.

In a further development of the device according to the invention is the shape and dimension of the first component of the second Heat exchanger assembly designed so that they the Heat exchanger assembly an arbitrarily definable Opposes flow resistance.

By changing the dimensions and the shape of the first Component of the second heat exchanger assembly, the Flow resistance of the entire device for the exchange of Heat to the conditions required for heat transfer be adjusted.

In a preferred embodiment of the device for Exchange of heat, this has a recording device, which in particular at least a first and second having lateral frame legs. Within this Receiving device, preferably between the first and second frame leg is arranged at least one heating block, which is composed of one or more heat exchanger assemblies is. The first and second frame legs are included preferably parallel to the longitudinal axis of the heat exchanger assemblies oriented.

In a further embodiment, the receiving device upper and / or lower frame legs, which at the top and / or lower longitudinal ends of the heat exchanger assemblies are arranged. Preferably, at least parts of Heat exchanger assemblies, preferably a central region of the Heat exchanger assemblies, essentially within of the Frame legs spanned surface arranged.

As a frame leg in the context of the present invention is a Element or group of elements to understand which an outer termination of one between several frame legs recorded or arranged element forms and which itself essentially in the plane of the heat exchanger assemblies extends.

In a further embodiment, the device is for Exchange of heat characterized in that the lateral Frame legs by an upper and / or lower Frame legs are connected so that they are in a given Distance from each other.

In a further embodiment, the upper and / or lower frame legs formed as end caps.

As an end cap in the context of the present invention is an element or to understand a group of elements, which one predetermined completion of the heat exchanger assembly or the Heating block forms at least in an extension direction. in the According to the invention, an end cap is preferably designed that the heating block engages in the end cap, preferably engages at least partially positive fit, or that the End cap surrounds the heating block or parts of the heating block.

Preferably, the frame legs consist of an electrical, non-conductive material, preferably plastic such as Example PVC (polyvinyl chloride), PE (polyethylene) PP (Polypropylene), silicones and silicone derivatives, TPE (Thermoplastic elastomers), epoxy resins, thermosets, teflon or similar. In a further preferred embodiment the frame legs consist of a combination of electrically conductive material, such as a metal and a plastic. As metal preferably takes place Aluminum and aluminum alloys, titanium and titanium alloys, Iron and iron alloys, zinc and zinc alloys or like use.

The frame legs of the receiving device have in one particularly preferred embodiment of the invention Device a hollow profile-shaped or shaped profile-shaped Cross section on, preferably a U-shaped, an I shaped, an L-shaped, a T-shaped, a V-shaped Cross section or the like.

The device for exchanging heat is in another Embodiment characterized in that at least one of Heat exchanger assemblies with at least one frame leg connected is. Preferably, this compound is replaced by a Plug connection, a screw connection, an adhesive connection, a welded joint and / or the like fixed.

The receiving device for the device for the exchange of Heat is still in a preferred embodiment by it characterized in that it comprises an element which is at least engages between two components of a heat exchanger assembly to delocalise the heat exchanger assemblies or the Counteract components of the heat exchanger assemblies. This Element may for example be a defined spacer, between two heat exchanger assemblies or between two Components is arranged and made of a non-conductive Material is made, so that an electrically conductive connection between the two heat exchanger assemblies or the components is prevented.

In a further embodiment, the device is for Exchange of heat characterized in that the Receiving device has a recess or implementation, in which at least one component, in particular the Contact sheet of the first and / or second heat exchanger assembly, intervenes.

At least one component of the receiving device of a Device for exchanging heat is in another Embodiment with a housing part of an air conditioner connectable.

In a further development of the device according to the invention can a component of the receiving device with the housing part an air conditioner integrally formed or in the housing part be integrated.

Moreover, at least one component of the receiving device have an electrical connection to the Receiving device, which in turn with the Heat exchanger assemblies are in electrically conductive contact can be with the contacts of an electrical power supply too connect.

Is the electrical conductivity of the first component of second heat exchanger assembly (standardized Functional element) chosen so that an electric current through the component can flow, so it can be more Supply electrical heating elements with electricity. By a Combination of electrically conductive and electrically non-conductive standardized functional elements is a power supply the electric heating elements in an arbitrarily definable electrical circuit arrangement possible.

In one embodiment of the present invention, the first components of the first heat exchanger assemblies of Apparatus for exchanging heat also directly and / or indirectly electrically conductive with at least one power source connected. An indirect electrically conductive connection is in this case preferably via a contact of the PTC heating elements with made the contact elements. Another indirect Electrically conductive connection may involve the Corrugated ribs are made in the circuit. The electric Connection of the PTC heating elements with the power source then takes place for example, via one or more contact elements as well one or more corrugated ribs. In this way, several can PTC heating elements connected in parallel or in series become.

In a preferred embodiment of the present invention the heating elements are on the one hand with the positive pole one Power source connected indirectly via one of the contact elements and on the other hand also indirectly via another Contact element with the receiving device, within which the Heat exchanger assemblies are arranged and which preferably made of an electrically conductive material such as Aluminum is made. The receiving device is here connected to the negative pole of the electrical power source.

In a preferred embodiment, the device is for Exchange of heat in an air conditioning system of a motor vehicle used to warm the indoor air of the To enable motor vehicle. This is by the Device according to the invention air, in the interior of the Vehicle is initiated, heated. The air conditioning has moreover, preferably a compressor, condenser, Dryer / collector, expansion valve and an evaporator on.

In a preferred embodiment, the device preferably in the flow channel of the ventilation system a Air conditioning system, in addition to a single-flow channel, especially multi-flow Flow channels suitable for use in the device. This can in a development of the invention Device the different air flows of the multi-flow Flow channels in different and independent way and Be heated way.

An inventive device for the exchange of heat, can for heating in the interior of a motor vehicle Guided air can be used. The device can hereby in addition to the commonly used heat exchangers in be used in a motor vehicle and is preferably while in operation until the heating and cooling circuit of a Motor vehicle available heat of the Internal combustion engine is sufficient to sufficiently warm the to reach into the vehicle interior guided air.

Another embodiment finds the invention Device use in motor vehicles with low Fuel consumption, the heat of combustion of the engine so low is that not enough heat energy sufficient Heating the interior is present.

There is also the possibility of the inventive Device in any heating or cooling device alone or in addition to other facilities for exchange to use of heat.

Further features of the present invention will become apparent from the following description in conjunction with the figures and the Claims.

Show it:

Fig. 1 is a schematic representation of a device for exchanging heat according to the prior art;

Fig. 2 is a schematic representation of a heat exchange device according to the present invention;

Fig. 3 is a schematic representation of a first heat exchanger assembly having an electrical heating element;

FIG. 4a is a sectional view of an embodiment according to the present invention taken along the line A Fig. 3;

Figure 4b is a sectional view of an alternative embodiment of a first heat exchanger assembly of Figure 3 taken along the line A..;

Fig. 5 is a schematic illustration of a second heat exchanger assembly without an electrical heating element;

Fig. 6 is a schematic representation of another embodiment according to the present invention;

Fig. 7a is a detail view of the receiving device of the device for exchanging heat according to Fig. 6;

FIG. 7b shows a detail view of an alternative embodiment of the device for exchanging heat according to FIG. 6; FIG.

Fig. 8 is a schematic representation of various embodiments of heat exchanger assemblies.

Fig. 1 shows a schematic representation of a device for exchanging heat according to the prior art. This has a heating block 1 , which consists of a plurality of juxtaposed heat exchanger assemblies 2 . The heat exchanger assembly 2 has as a first component electrical heating elements, preferably strip-shaped PTC heating elements 3 a, 3 b.

In order to achieve a better heat transfer between the PTC heating elements 3 a, 3 b and a corrugated fin 4 , the heat exchanger assembly 2 has a contact plate 5 that is arranged between the PTC heating elements 3 a, 3 b and the corrugated fin 4 and which with the PTC heating element and the corrugated rib is electrically and thermally conductively connected.

The rectangular heating block 1 is arranged in a rectangular frame 6 with four frame legs 6 a, 6 b, 6 c, 6 d and is clamped with a spring 7 in this frame.

The PTC heating elements are connected to a voltage source 8 , wherein the circuit via a contact plate 5 , a corrugated fin 4 and at least one frame member 6 c is closed. In this embodiment, two heat exchanger assemblies are electrically connected in parallel.

Fig. 2 illustrates a preferred embodiment according to the present invention. The rectangular heating block 11 is held in a rectangular frame 16 with four frame legs 16 a, 16 b, 16 c, 16 d. In a preferred embodiment, the frame leg has a substantially U-shaped cross-section.

In the embodiment of FIG. 2, a first heat exchanger assembly 12 a is shown, which PTC heating elements 13 a, contact plates 15 a, 15 b and a corrugated fin 14 a has. By means of the electrical contact 19 a, the PTC heating elements 13 a are connected to a current source 18 a.

In addition to the first heat exchanger assembly 12 a, the heating block 11 also has a second heat exchanger assembly 12 b. It has, in addition to the contact plates 15 c, 15 d, the corrugated fin 14 b, a first component 13 b, which has no heating element in contrast to the first component 13 a of the first heat exchanger assembly.

This first component 13 b of the second heat exchanger assembly is not substantially influenced by an electrical current flowing through the component and is not an electrical heating element but is a standardized functional element, for example, to maintain a predetermined distance between the contact plates 15 c, 15 d and a defined transition of energy between the contact plates 15 c, 15 d to ensure.

By selecting suitable materials, this first component of the second heat exchanger assembly 13 b has a defined electrical and thermal conductivity.

Thus, according to the preferred embodiment of Fig. 2 not only by the directly connected to the PTC heating element 13 a corrugated fin 14 a energy dissipated to the air flowing through, but also on the thermally and electrically coupled to the standardized functional elements 13 b corrugated fins.

The fixation of the heat exchanger assemblies and their components takes place through a first, second and third Connecting material, which partially 30a, 50a or full surface 30b, 30c, 50b, 50c on the surfaces of the components and / or Heat exchanger assemblies, and more preferably between the Components and / or heat exchanger assemblies is arranged.

Fig. 3 is a schematic detail view showing a first heat exchanger assembly having a PTC heating element 32.

The PTC heating element 32 is arranged between two contact plates 35 b and 35 c. In order to ensure a firm connection between the individual components, a first connecting material 30 a, 30 b, 30 c is provided, which fixes the arrangement of the components of the first heat exchanger assembly to each other.

Following the two contact plates 35 b, 35 c, the corrugated fins 34 a, 34 b are arranged, which are fixed with the first bonding material to the contact plates 35 b, 35 c.

To the two cooling fins 34 a, 34 b are followed by two further contact plates 35 a, 35 d, which are also connected via the first connecting material with the cooling fins.

According to the present invention, the compound is the individual components of the first heat exchanger assembly so designed that the exchange of thermal and electrical Energy between the individual components is favored.

Under the term connecting material within the meaning of the present Invention is a material to be understood, due to its physical and / or chemical properties of the solid Connection between different components or assemblies allows and its dependent on the temperature Material properties of at least one material property of used materials at least partially corresponds. Preferably, the temperature range in which the Material properties are essentially the same between -50 ° C and + 300 ° C, preferably between -30 ° C and + 250 ° C and more preferably between -30 ° C and + 170 ° C.

According to the embodiment shown in Fig. 3, the first bonding material 30 a can be arranged so that only in the areas in which touch the components, the bonding material is provided.

According to a further embodiment, the bonding material 30 b, 30 c may also be applied to the entire surfaces of the components in order to fix the various components to one another and additionally to cover the surfaces provided with bonding material.

Thus, the bonding material serves in the touch areas for fixing the components and additionally in the Touch areas and on the surfaces as protection of Components against external influences, for example, too Corrosion of the surfaces or the entire component lead could.

Fig. 4a shows a sectional view of the first heat exchanger assembly along section line A, where in addition to the individual components of the heat exchanger assembly and the connecting material is shown. The PTC heating element 42 contacts the two contact plates 45 c, 45 b and is connected by the connecting material 40 b with the contact plates. The contact plates 45 b, 45 c are further connected to the corrugated fins 44 a, 44 b through the connecting material 40 a, 40 c. The heat exchanger assembly is completed by two further contact plates 45 a, 45 d on both sides. These are also connected to the cooling fins 44 a, 44 b through the connecting material 40 a, 40 c.

As can be seen from Fig. 4a, in this embodiment, the connecting material is arranged substantially on the surfaces of the individual components and does not fill the free space between the two contact plates 45 b, 45 c.

In Fig. 4b, another particularly preferred embodiment of a first heat exchanger assembly is shown, in which the area between the contact plates 45 b, 45 c, which is not occupied by the PTC heating element 42 , is filled by the connecting material 40 d.

In addition to the connection of the components by the Connecting material, fills the connecting material in one Particularly preferred embodiment, the cavity between the Individual components from around thereby the outer form of the Heat exchanger assembly, in particular with respect to Flow resistance adaptable to the respective requirements shape.

Fig. 5 shows a second heat exchanger assembly without heating element, which comprises a standardized functional element (first component of the second heat exchanger assembly) 52nd

This standardized functional element 52 is connected by means of a first connecting material 50 b with the two contact plates 55 b, 55 c. The corrugated fins 54 a, 54 b join the contact plates 55 b, 55 c and are also fixed by a second compound material 50 a, 50 c with respect to the contact plates. Again, the heat exchanger assembly of two contact plates 55 a, 55 d completed on both sides. These are connected according to the present embodiment with a second connecting material 50 c with the cooling fins 54 a, 54 b.

According to a further embodiment, Fig. 5 on the left side of the heat exchanger assembly, a connection method in which the bonding material 50 c has been applied over the entire surface of the components.

On the right side of the illustration, the use of the connecting material 50 a is limited to the region of the contact points between the contact plates 55 a, 55 b and the corrugated fin 54 a.

Fig. 6 shows an embodiment of a device for exchanging heat, in which the receiving device 67 a has an element 66 b, which engages between the two components 65 a, 65 b of the first heat exchanger assembly.

This prevents the contact plates of the Heat exchanger assemblies can come into contact with each other and such an unwanted electrical and / or thermal contact occurs between the contact plates.

The projection 66 a forms a lateral end segment of the end cap 67 a and protects the heat exchanger assembly or the heating block, inter alia, against mechanical stresses.

The heating block according to Fig. 6 further comprises heating elements 62 a, 62 c, 62 b standardized functional elements, cooling fins 64 a, 64 b and contact plates 65 a, 65 b, 65 c on. The receiving device 67 a, Gib is disposed at the top and bottom of the heating block, wherein the receiving device comprises two elements 67 a and 67 b as upper and lower end cap. For operating the electric heating elements, the heat exchanger assemblies with the voltage sources 63 a and 63 b are connected.

In Fig. 7a, a device for exchanging heat according to FIG. 6 is shown in detail, the receiving device 77 has a projections. The projection 76 b engages between the two contact plates 75 a, 75 b and is fixed by a connecting material 70 c with the contact plates 75 a, 75 b. The connecting material, which is applied in excess, forms a positive connection between the individual components of the heat exchanger assemblies and also connects the contact plates 75 a, 75 b with the end cap 77 a.

The projection 76 a is not connected according to the embodiment shown here with the contact plate 75 c by a connecting material. In a further development of the present invention, a connecting material is provided between the projection 76 a and the contact plate 75 c.

In Fig. 7b, another embodiment of a device for exchanging heat with a receiving device is shown, which has no projection. This receiving device is also designed in this embodiment as an end cap, so that the heating block is fixed on its top or bottom. The end caps are to the given dimensions such. B. the dimensions of a flow channel adjusted.

Fig. 7b shows in addition to the recording device 77 a heating element 72 a, the cooling fins 74 a, 74 b, the Standardized functional element 72 b, the contact plates 75 a, 75 b, 75 c and the areas with bonding material 70 a, 70 b, 70 c.

In a further embodiment, the end cap 77 a is not connected by a connecting material with the heating block but stands with this only in an at least partially positive connection.

Fig. 8 shows various modules in the sense of the present invention, which have at least two components and which are suitable for the production of heating blocks, each with different requirements for the heating properties.

Fig. 8a shows a particularly preferred embodiment of a first heat exchanger assembly consisting of two PTC heating elements 82 a, a contact plate 85 a and a cooling fin 84 a.

Fig. 8b shows a particularly preferred embodiment, in addition to a cooling fin 84 a two contact plates 85 a, 85 b on both sides of the cooling fin 84 a.

Fig. 8c shows a heat exchanger assembly consisting of a cooling rib 84 a and a contact plate 85 a.

Fig. 8d shows a particularly preferred embodiment of a second heat exchanger assembly, in addition to a standardized functional element 82 b, a contact plate 85 a and a cooling fin 84 a.

In Fig. 8e, a combination of a plurality of cooling fins 84 a and contact plates 85 a, 85 b, 85 c is shown. The two cooling fins 84 a are arranged on both sides of a contact plate 85 b and laterally by two cooling plates 85 a, 85 c completed.

For the purposes of the invention are further, any combinations individual components to modules of the invention possible.

The connection and fixation of the modules shown in Fig. 8 to a heating block is carried out by a first, second and / or third bonding material that is either present only in the contact area of the modules or completely surrounds the surface of the components.

Claims (35)

1. Apparatus for exchanging heat, in particular for a motor vehicle with
at least one first heat exchanger assembly ( 12 a),
said first heat exchanger assembly ( 12 a) having at least one first component ( 13 a) which is connected to an electrical power source ( 18 ) ( 19 a) and whose temperature varies depending on an electrical current flowing through the component, and
said first heat exchanger assembly ( 12 a) having at least one second component ( 14 a) for exchanging heat with a medium flowing around the heat exchanger assembly, and
wherein the first heat exchanger assembly ( 12 a) has at least one third component ( 15 a) disposed between the first and second components ( 13 a, 14 a) and which conducts thermal and / or electrical energy, and
wherein the components ( 13 a, 14 a, 15 a) of the first heat exchanger assembly are in contact with one another such that a transition of thermal and / or electrical energy is made possible,
characterized in that
at least in the areas in which at least two components of the first heat exchanger assembly approach each other or touching a first connecting material ( 30 a, 30 b, 30 c) is provided, which fixes the arrangement of these components of the first heat exchanger assembly to each other, and
the first bonding material is selected such that at least one temperature affected material property of the first bonding material of the same material property at least partially corresponds to at least one of the materials used, preferably the materials used for at least a portion of the components of the first heat exchanger assembly, preferably in a temperature range between -50 ° C and + 300 ° C, preferably in a temperature range between -30 ° C and + 250 ° C, more preferably in a temperature range between -30 ° C and + 170 ° C substantially corresponds. 2. Apparatus for exchanging heat according to claim 1,
characterized in that
the device has at least one second heat exchanger assembly ( 12 b),
said second heat exchanger assembly comprising a first component (12 b) of at least (13 b) of which temperature is not influenced by a current flowing through the electric power component, and
said second heat exchanger assembly ( 12 b) having at least one second component ( 14 b) for exchanging heat with the medium flowing around the heat exchanger assembly, and
wherein the first component ( 13 b) of the second heat exchanger assembly consists of a material of defined electrical and thermal conductivity. 3. Device for exchanging heat according to claim 2, characterized in that the second heat exchanger assembly ( 12 b) has at least one third component ( 15 c), wherein the third component preferably between the first and second components ( 13 b, 14 b) is arranged, and which thermal and / or electrical energy conducts. 4. Apparatus for exchanging heat according to at least one of claims 2 or 3,
characterized in that
the components ( 13 b, 14 b, 15 c) of the second heat exchanger assembly are in contact with one another such that a transition of thermal and / or electrical energy is made possible, and
at least in the areas in which at least two components of the second heat exchanger assembly touch a second bonding material ( 50 a, 50 b, 50 c) is provided, which fixes the arrangement of these components of the second heat exchanger assembly to each other, and
the second bonding material is selected so that at least one material property of the second bonding material of the same material property at least partially corresponds to at least one of the materials used, preferably the materials used for at least a portion of the components of the first and / or second heat exchanger assembly, preferably in a temperature range between -50 ° C and + 300 ° C, preferably in a temperature range between -30 ° C and + 250 ° C, more preferably in a temperature range between -30 ° C and + 170 ° C substantially corresponds. 5. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the dimensions of the second heat exchanger assembly the Dimensions of at least one of the first Heat exchanger assembly at least partially comply, and 6. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that
at least partially contact at least two heat exchanger assemblies,
wherein in the areas in which the heat exchanger assemblies touch a third bonding material is provided, which fixes the arrangement of the heat exchanger assemblies to each other. 7. Apparatus for exchanging heat according to claim 5, characterized in that the heat exchanger assemblies are in contact with each other so that Transition of thermal and / or electrical energy is possible. 8. Apparatus for exchanging heat according to at least one of claims 5 or 6, characterized in that the third connecting material is chosen such that at least one material property of the third Connecting material of the same material property at least one of the materials used, preferably for at least part of the components of the first and / or the second heat exchanger assembly used Materials, at least partially corresponds, preferably in a temperature range between -50 ° C and + 300 ° C, preferably in a temperature range between -30 ° C and + 250 ° C, more preferably in a temperature range between -30 ° C and + 170 ° C substantially corresponds. 9. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the first and / or second and / or third Connecting material the exchange of thermal and / or electric energy favors. 10. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the material property of the first and / or second and / or third bonding material of the thermal Expansion coefficient is. 11. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the first and / or second and / or third Connecting material essentially the same ingredients having. 12. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the first and / or second and / or third Connecting material a change of Surface texture of the adjacent thereto Prevents materials, preferably a change in the Oxidation number of adjacent materials preferably prevents the surfaces of it protects adjacent materials against corrosion, particularly preferably the first component of the first Heat exchanger assembly protects against corrosion. 13. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that at least a part of the surfaces of the components of first heat exchanger assembly, which with the Heat exchanger modules around flowing medium in contact stand and / or part of the surfaces of the components the second heat exchanger assembly, which with the Heat exchanger modules around flowing medium in contact are essentially completely different from the first and / or Covered second and / or third connection material or are surrounded. 14. A device for exchanging heat according to at least one of the preceding claims, characterized in that the physical properties of the first component ( 13 b) of the second heat exchanger assembly promote a transport of thermal and / or electrical energy. 15. Device for exchanging heat according to at least one of the preceding claims, characterized in that the physical properties of the first component ( 13 b) of the second heat exchanger assembly inhibit a transport of thermal and / or electrical energy. 16. A device for exchanging heat according to at least one of the preceding claims, characterized in that the first component ( 13 b) of the second heat exchanger assembly is designed so that the flow resistance opposes the first component of the second heat exchanger assembly to the medium flowing around, in one predetermined ratio to the flow resistance, which opposes the first component of the first heat exchanger assembly to the medium flowing around them, is. 17. A device for exchanging heat according to at least one of the preceding claims, characterized in that the first component ( 13 a) of the first heat exchanger assembly has at least one heating element with a positive temperature coefficient (PTC heating element). 18. Device for exchanging heat according to at least one of the preceding claims, characterized in that the second component ( 14 a) of the first heat exchanger assembly and / or the second component ( 14 b) of the second heat exchanger assembly cooling fins, preferably wave-shaped cooling fins, preferably corrugated fins an electrically and / or thermally conductive material. 19. Device for exchanging heat according to at least one of the preceding claims, characterized in that the heat exchanger assemblies are arranged in a receiving device ( 16 ). 20. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the heat exchanger assemblies are combined so that the Amount of heat, which between the entire device and the medium flowing around the heat exchanger assemblies is interchangeable, is given. 21. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the device is a combination of standardized Modules is constructed. 22. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the receiving device ( 16 ) has at least one first lateral frame limb ( 16 b) and at least one second lateral frame limb ( 16 d), wherein the first and / or second heat exchanger assemblies ( 12 a, 12 b) are held within the plane defined by the first and second frame legs ( 16 b, 16 d) surface. 23. Device for exchanging heat according to at least one of the preceding claims, characterized in that the receiving device ( 16 ) has at least one upper frame limb ( 16 a) and at least one lower frame limb ( 16 c), wherein at least parts of the first and / or second heat exchanger assemblies ( 12 a, 12 b) are held within the plane defined by the upper and lower frame legs ( 16 a, 16 c) surface. 24. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the first and / or second heat exchanger assemblies ( 12 a, 12 b) are held by a force acting substantially orthogonal to the longitudinal axis of the heat exchanger assemblies force. 25. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that the first lateral frame limb ( 16 b) is connected to the second lateral frame limb ( 16 d) by at least one of the upper and / or at least one of the lower frame limbs ( 16 a, 16 c) is connected so that the first and second lateral frame legs ( 16 b, 16 d) are held at a definable distance from each other. 26. A device for exchanging heat according to at least one of the preceding claims, characterized in that at least one upper and / or lower frame legs ( 67 a, 67 b) is formed as an end cap. 27. A device for exchanging heat according to at least one of the preceding claims, characterized in that at least one frame leg, preferably the upper and the lower frame legs ( 16 a, 16 c) made of an electrically non-conductive material, preferably plastic. 28. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that at least one frame leg of the frame assembly a Hollow profile or a form profile shaped Cross-section, preferably a U-shaped, a C-shaped, an I-shaped, a T-shaped or a Has L-shaped cross-section. 29. A device for exchanging heat according to at least one of the preceding claims, characterized in that at least one first and / or second heat exchanger assembly ( 12 a, 12 b) is connected to at least one frame leg, preferably by at least one connector, a screw, a Adhesive connection, a welded joint and / or the like is connected. 30. A device for exchanging heat according to at least one of the preceding claims, characterized in that the receiving device ( 16 ) has at least one element ( 67 a) which at least one projection ( 66 a, 66 b), at least between two components the first and / or the second heat exchanger assembly ( 12 a, 12 b) engages. 31. Device for exchanging heat according to at least one of the preceding claims, characterized in that the receiving device ( 16 ) has at least one recess and or passage, in the at least one component of the first and / or second heat exchanger assembly ( 12 a, 12 b ) intervenes. 32. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that at least one component of the receiving device with a housing part of an air conditioner is connected. 33. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that at least one component of the receiving device with a housing part of an air conditioning unit integrally formed is. 34. Apparatus for exchanging heat according to at least one of the preceding claims, characterized in that at least one component of the receiving device has an electrical connection ( 20 ). 35. Device for cooling or heating air, in particular for a motor vehicle, with air flow paths, Air flow control elements and at least one Air conveyor and a housing, which the Including at least one device for the exchange of Heat, according to at least one of the preceding claims is prepared or within such a Apparatus for exchanging heat is arranged.