DE102021110541A1 - Heating device for a motor vehicle and motor vehicle with such a heating device - Google Patents

Abstract

The invention relates to a heating device (2) for a motor vehicle with at least one cooling device (4) for cooling a working unit (6), such as an internal combustion engine, which comprises at least one fluid line (8) and a cooling unit (10), the fluid line (8) and Cooling unit (10) form a circuit for a first fluid that can be transported in the fluid line (8) and that can be fed cooled by the cooling unit (10) to the working unit (6) through a first section of the fluid line (12) in order to heat the working unit (6 ) and which can be fed to the cooling unit (10) through a second section of the fluid line (14) heated by the working unit (6) in order to release heat from the first fluid, and having at least one consumer device (16) which has at least one coupling agent (18) includes, with which the consumer device (16) with the second section of the fluid line (14) is directly or indirectly connected and through the heat of the first fluid of cooling device (4) can be transmitted to the consumer device (16), and which comprises at least one heat transfer region (20) on or in which a consumer (22) can be arranged or is arranged and through which the coupling means (18) into the consumer device (16) introduced heat to the consumer (22) is transferable.

Description

The invention relates to a heating device for a motor vehicle and a motor vehicle with such a heating device.

Internal combustion-powered motor vehicles that include a working unit, such as an internal combustion engine, have a cooling device for cooling the working unit. In this, a cooling fluid flows to the working unit in order to absorb heat there and release it to the environment in a cooling unit. This protects the working unit from overheating. After the cooling fluid has been cooled in the cooling unit, it again flows to the working unit. There are known heating devices for motor vehicles in which the waste heat from the cooling unit, for example in the form of a fan, can be conducted in the direction of a driver or passenger of the motor vehicle.

The object of an exemplary embodiment of the invention is to propose a heating device for a motor vehicle and a motor vehicle with such a heating device in which the waste heat from a working unit can be used in an improved manner.

This object is achieved by a heating device for a motor vehicle with at least one cooling device for cooling a working unit, such as an internal combustion engine, which comprises at least one fluid line and a cooling unit, with the fluid line and cooling unit forming a circuit for a first fluid that can be transported in the fluid line and that flows through a first section of the fluid line, cooled by the cooling unit, can be fed to the working unit in order to absorb heat from the working unit, and which can be fed through a second section of the fluid line, heated by the working unit, to the cooling unit in order to release heat from the first fluid, and with at least one consumer device, which comprises at least one coupling means with which the consumer device can be connected directly or indirectly to the second section of the fluid line and through which the heat of the first fluid of the cooling device can be transferred to the consumer device, and the at least s comprises a heat transfer area on or in which a consumer can be arranged or is arranged and through which the heat introduced into the consumer device by the coupling agent can be transferred to the consumer.

Because the heating device includes a consumer device that can be coupled to the fluid line of the cooling device, heat from the first fluid can be supplied to a consumer through the consumer device before the first fluid is cooled down in the cooling unit. As a result, the heat absorbed by the working unit through the first fluid can be used in an extended manner.

The working unit can include an internal combustion engine, an electric motor, a fuel cell, a computing unit or any other unit whose operation generates heat.

The consumer device can be or can be arranged in or on a driver's area or outside of a driver's area. Furthermore, the consumer device can be thermally insulated from the driver's area. If the motor vehicle comprises a passenger car, for example, the consumer device can be separated from the vehicle interior and thermally insulated with respect to the vehicle interior.

The motor vehicle can be any motor vehicle, in particular a passenger car, a truck, a commercial vehicle and/or a tilting vehicle.

A tilting vehicle is understood to mean bicycles, motorcycles or motor vehicles similar to motorcycles, such as motor scooters, in particular two-, three- or four-wheeled motor scooters, scooters, tiltable trikes, quads or the like.

The fluid can be any fluid as long as it is suitable for being able to quickly absorb a high level of heat from the working unit. In such a case, the fluid can be a liquid medium, in particular water and/or cooling liquid or a gas.

Embodiments of the heating device are conceivable in which the coupling means comprises a valve means through which the first fluid of the cooling device can flow into the consumer device, and/or in which the coupling means comprises a heat exchanger through which the heat of the first fluid is transferred to a consumer device arranged and materially and spatially separate from the first fluid second fluid is transferable.

If the coupling means comprises a valve means through which the first fluid of the cooling device can flow into the consumer device, a bypass can be formed in such a way and only a single fluid has to be kept available. If the coupling means comprises a heat exchanger, through which the heat of the first fluid can be transferred to a second fluid which is arranged in the consumer device and is materially and spatially separate from the first fluid, two mutually independent circuits can be formed. Through this the heating device can easily be retrofitted to existing motor vehicles and the consumer device can be designed as a retrofittable unit.

The heat exchanger can be a heat exchanger, the terms being used synonymously below.

The coupling means can also include a manually or automatically operable setting element, by means of which an amount of heat to be transferred to the consumer device can be set in stages or continuously.

In order to ensure that the heat is transported further within the consumer device, it has proven to be advantageous in a further development of the heating device if the consumer device comprises at least one fluid channel in which the first fluid or the second fluid can be arranged, with the fluid channel forming a circuit between the coupling means and heat transfer area forms.

This makes it possible for the heat transfer area to be at a distance from the second section of the fluid line of the cooling device.

The second fluid can also be a coolant, through which heat can be absorbed and transported quickly and in large quantities.

In order to ensure transport of the first fluid and/or the second fluid, it proves to be advantageous if the consumer device and/or cooling device comprises at least one pump means, by which the first fluid and/or the second fluid is pumped through the fluid line and/or the Fluid channel is movable.

In principle, the consumer device can have any desired design, provided that it fulfills the function that heat can be transferred to the consumer via the heat transfer area.

In a further development of the heating device, it is provided that the consumer device comprises a housing body which comprises a cavity which is accessible from the outside via at least one opening, which forms a receptacle for the consumer and which forms the heat transfer area at least in sections.

This makes it possible to arrange the consumer in the housing body. This also makes it easier to separate, in particular to thermally insulate, the consumer device from a driver's area, in particular from a vehicle interior.

In a further development of the latter embodiment, it proves to be advantageous if the fluid channel is formed in the housing body and/or can be arranged on the housing body and/or if the fluid channel surrounds the cavity in its entirety or at least in sections.

When the fluid passage is formed in the case body, the heating device can be made compact. If the fluid channel can be arranged on the housing body, making the housing body available is technically simplified.

If the fluid channel completely surrounds the cavity, homogeneous heat transfer to the consumer can be ensured.

Heat can be transferred from the heat transfer area to the consumer by means of thermal radiation, thermal conduction and/or by convection, in particular forced convection.

In order to secure a consumer against movement, it has proven to be advantageous if the consumer device comprises at least one securing means which is arranged in particular in or on the cavity of the housing body and by means of which the consumer can be frictionally, non-positively and/or positively secured against movement is.

The fixing means can, for example, comprise a clamping means or a tensioning means. Furthermore, the fixing means can be formed by a section of the cavity, in particular a section that tapers conically.

In order to improve the transfer of heat to the consumer, a development of the last-mentioned embodiment provides that the at least one fixing means is designed as a heat conductor and/or that the fluid channel runs at least in sections through the at least one fixing means.

As a result, heat can be transferred to the consumer directly by the heat conductor alone or in addition to other heat transfer means.

In order to at least reduce the risk of heat escaping from the cavity of the housing body, a further development of the heating device provides that the consumer device comprises at least one cover element which can be arranged on the housing body to close the opening, in particular wherein the Cover element comprises at least one thermally insulating layer.

The cover element can, for example, be screwed onto the housing body or can be folded from a closed position into an open position and back by means of a hinge.

In addition, it proves to be advantageous if the housing body includes a storage compartment, a transport box and/or a holder, in particular a drink holder, and/or if the consumer includes a storage container for storing food, such as food or drink.

If the housing body includes a storage compartment, a transport box and/or a holder of the vehicle, the housing body can include a unit that is arranged or processed on the motor vehicle anyway. If the consumer includes a storage container in which food or drinks can be stored, hot drinks, for example, can be kept warm or warmed up by the heating device. In such a case, the storage container can be, for example, a cup, a mug or the like.

Finally, the object is achieved by a motor vehicle, in particular a tilting vehicle, with at least one working unit, a cooling device for cooling the working unit and with at least one heating device with at least one of the aforementioned features.

Further features, details and advantages of the invention result from the appended patent claims, from the drawing and the following description of a preferred embodiment of the heating device.

• 1 Eine schematische Schaltskizze einer Ausführungsform der Wärmevorrichtung,
• 2 Eine geschnittene detaillierte Draufsicht auf ein Ausführungsbeispiel der Verbrauchereinrichtung der Wärmevorrichtung gemäß 1.

In the drawing shows:

• 1 A schematic circuit diagram of an embodiment of the heating device,
• 2 A sectional detailed plan view of an embodiment of the consumer device of the heating device according to FIG 1 .

The figures show a heating device for a motor vehicle (not shown in the figures), which is provided overall with the reference number 2 . The heating device 2 comprises a cooling device 4 ( 1 ) for cooling a working unit 6. The cooling device 4 comprises a fluid line 8 and a cooling unit 10. The fluid line 8 and the cooling unit 10 form a circuit for a first fluid that can be transported in the fluid line 8.

The first fluid can be fed cooled by the cooling unit 10 to the working unit 6 through a first section 12 of the fluid line 8 in order to absorb heat from the working unit 6 . The first fluid heated by the working unit 6 can be fed to the cooling unit 10 through a second section 14 of the fluid line 8 .

In addition, the heating device 2 includes one or more consumer devices 16. The consumer device 16 (shown in more detail in 2 ) comprises at least one coupling means 18 with which the consumer device 16 can be connected directly or indirectly to the second section 14 of the fluid line 8 . Heat of the first fluid of the cooling device 4 can be transferred to the consumer device 16 by the coupling means 18 . The consumer device 16 comprises at least one heat transfer region 20 on or in which a consumer 22 can be arranged. The heat introduced to the consumer device 16 by the coupling means 18 can be transferred to the consumer 22 through the heat transfer region 20 .

At the in 2 The embodiment shown includes the consumer device 16 fluid channels 24 which form a circuit between the coupling means 18 and the heat transfer area 20 .

At the in 2 shown embodiment, the consumer device 16 comprises a housing body 26 in which the fluid channels 24 are arranged. The housing body 26 includes a cavity 30 in which the consumer 22 can be arranged. The housing body 26 is accessible from the outside via an opening 28 . The housing body 26 encloses a cavity 30 which forms a receptacle for the consumer 22 . In order to fix the load 22 against movement, the load device 16 includes fixing means 32. In order to prevent excessive heat from escaping from the cavity 30, the load device 16 includes a cover element 34 which can be arranged on the housing body 26 so that the cavity 30 is completely closed.

• Bei Betrieb des Kraftfahrzeugs wird ein übermäßiges Erhitzen des Arbeitsaggregats 6 durch die Kühleinrichtung 4 verhindert. Hierzu fließt Fluid durch die Fluidleitung 8 an dem Arbeitsaggregat 6 entlang und entnimmt dieser überschüssige Wärme. Das aufgewärmte Fluid fließt über den zweiten Abschnitt 14 der Fluidleitung 8 in Richtung Kühleinheit 10, um dort Wärme an die Umgebung abzugeben. Um die im Fluid aufgenommene Wärme weiter zu nutzen, ist im zweiten Abschnitt 14 der Fluidleitung 8 eine oder mehrere Verbrauchereinrichtungen 16 vorgesehen. Über das Koppelmittel 18 wird die Wärme eingeleitet und dem Wärmeübertragungsbereich 20 zugeführt. Durch den Wärmeübertragungsbereich 20 und durch die Festlegemittel 32, ist Wärme an den Verbraucher 22 zum einen durch Wärmestrahlung, aber auch durch Wärmeleitung über die Festlegemittel 32, unmittelbar an den Verbraucher 22 übertragbar.

The following is based on the 1 and 2 the mode of operation of the heating device 2 briefly described:

• When the motor vehicle is in operation, the cooling device 4 prevents the working unit 6 from heating up excessively. For this purpose, fluid flows through the fluid line 8 along the working unit 6 and removes excess heat from it. The heated fluid flows via the second section 14 of the fluid line 8 in the direction of the cooling unit 10 in order to give off heat to the environment there. In order to further use the heat absorbed in the fluid, two th section 14 of the fluid line 8 one or more consumer devices 16 are provided. The heat is introduced via the coupling means 18 and supplied to the heat transfer area 20 . Through the heat transfer area 20 and through the fixing means 32, heat can be transferred directly to the consumer 22 by thermal radiation, but also by thermal conduction via the fixing means 32.

The features of the invention disclosed in the above description, in the claims and in the drawing can be essential both individually and in any combination in the implementation of the invention in its various embodiments.

reference list

2

warming device

4

cooling device

6

working unit

8th

fluid line

10

cooling unit

12

first section of the fluid line

14

second section of the fluid line

16

consumer facility

18

couplant

20

heat transfer area

22

consumer

24

fluid channel

26

case body

28

opening

30

cavity

32

fixing means

34

cover element

Claims (10)

Heating device (2) for a motor vehicle with at least one cooling device (4) for cooling a working unit (6), such as an internal combustion engine, which comprises at least one fluid line (8) and a cooling unit (10), the fluid line (8) and cooling unit (10) form a circuit for a first fluid which can be transported in the fluid line (8) and which can be supplied to the working unit (6) cooled by the cooling unit (10) through a first section of the fluid line (12) in order to absorb heat from the working unit (6), and which can be fed to the cooling unit (10) heated by the working unit (6) through a second section of the fluid line (14) in order to release heat from the first fluid, and having at least one consumer device (16) which comprises at least one coupling means (18). , with which the consumer device (16) can be connected directly or indirectly to the second section of the fluid line (14) and through which the heat of the first fluid of the cooling device (4) is transferred to the conn smoking device (16) and which comprises at least one heat transfer region (20) on or in which a consumer (22) can be arranged or is arranged and through which the heat introduced into the consumer device (16) by the coupling means (18) is applied can be transferred to the consumer (22). Heater (2) after claim 1 , characterized in that the coupling means (18) comprises a valve means through which the first fluid of the cooling device (4) can flow into the consumer device (16), and/or in that the coupling means (18) comprises a heat exchanger through which heat of the first fluid can be transferred to a second fluid which is arranged in the consumer device (16) and is materially and spatially separate from the first fluid. Heater (2) after claim 1 or 2 , characterized in that the consumer device (16) comprises at least one fluid channel (24) in which the first fluid or the second fluid can be arranged, the fluid channel (24) forming a circuit between the coupling means (18) and the heat transfer area (20). Warming device (2) according to at least one of the preceding claims, characterized in that the consumer device (16) comprises a housing body (26) which comprises a cavity (30) which is accessible from the outside via at least one opening (28), the one Recording for the consumer (22) forms and at least partially forms the heat transfer area (20). Heater (2) after claim 4 , characterized in that the fluid channel (24) is formed in the housing body (26) and/or can be arranged on the housing body (26) and/or that the fluid channel (24) completely or at least partially surrounds the cavity (30). Heating device (2) according to at least one of the preceding claims, characterized in that the consumer device (16) comprises at least one fixing means (32) which is arranged in particular in or on the cavity (30) of the housing body (26) and by which the consumer ( 22) can be fixed against movement in a frictional, non-positive and/or positive manner. Heater (2) after claim 6 , characterized in that the at least one fixing means (32) is designed as a heat conductor and / or that the fluid channel (24) runs at least in sections through the at least one fixing means (32). Warming device (2) according to at least one of the preceding claims, characterized in that the consumer device (16) comprises at least one cover element (34) so that the opening (28) can be arranged on the housing body (26) so that it closes, in particular wherein the cover element (34) comprises at least one thermally insulating layer. Warming device (2) according to at least one of the preceding claims, characterized in that the housing body (26) comprises a storage compartment, a transport box and/or a holder, in particular a drinks holder, and/or that the consumer (22) buys a foodstuff, such as food or Beverage containing storage container. Motor vehicle, in particular tilting vehicle, with at least one working unit (6), a cooling device (4) for cooling the working unit (6) and with at least one heating device (2) according to one of Claims 1 until 9 .

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