DE102012004821A1 - Rear-side transportation apparatus for motor car, has container that is arranged below a floor panel of motor car, and provided with temperature control unit for controlling temperature of storage compartment - Google Patents

Abstract

The rear-side transportation apparatus (10) has a container which is arranged below a floor panel (16) of motor car. The container is provided with a storage compartment (51) and a temperature control unit (52) for controlling the temperature of the storage compartment. The storage compartment and temperature control unit are coupled to each other. The container is moved along vehicle longitudinal direction by guide rails.

Description

Technical area

The present invention relates to a rear-side transport device of a motor vehicle with a preferably arranged below a bottom plate of the motor vehicle container.

background

In order to maximize the stowage volume of a motor vehicle, there are already different space concepts, in particular for the rear area of a motor vehicle. Common solutions see z. Example, to design a rear loading floor of a motor vehicle liftable and in an underlying, the vehicle interior associated area, additional storage space, such as to provide a spare wheel available.

For example, the DE 101 12 272 A1 a trunk structure with a removable arrangement of a storage container, which can be accommodated in a bottom plate member provided recessed storage portion. However, an access option for such, provided below the actual loading floor storage container is only possible with an empty trunk and the tailgate open, whereby the usability of the container is severely limited.

In addition, such storage containers are associated with the interior of the motor vehicle and therefore have a temperature level comparable to the motor vehicle interior.

In contrast, the present invention has the object to provide a versatile rear-end transport device for a motor vehicle, which is also used regardless of the load of a trunk at any time and in particular for the transport of perishable goods particularly versatile.

Advantageous embodiments

This object is achieved with a rear-side transport device according to claim 1 and with a motor vehicle according to claim 13, wherein advantageous embodiments are each the subject of dependent claims.

Accordingly, a rear-side transport device of a motor vehicle is provided with a rear side can be arranged below a bottom plate of the motor vehicle container. The container is in this case in the vehicle exterior and is thus hermetically separated from the vehicle interior. The container also has a storage compartment and a temperature control unit for tempering the storage compartment. The preferred arrangement of the container in the vehicle exterior space provides a priori thermal decoupling of the container from the vehicle interior.

Furthermore, by means of the temperature control unit provided in or on the container, the temperature level of the storage compartment provided for receiving articles to be carried along can be regulated as required. Depending on the prevailing outside temperature, the temperature control unit can set and regulate the temperature level of the storage compartment according to a user specification. In this way, z. B. perishable and to be cooled goods such. As drugs or food comparable storage in a refrigerator in the coolable or refrigerated storage compartment are carried.

It is also conceivable to bring the temperature of the storage compartment by means of the temperature control device to a relative to the ambient temperature and / or relative to the vehicle interior temperature elevated temperature level to z. B. prepared and heated meals during entrainment in the motor vehicle to keep warm accordingly.

According to a preferred embodiment, the storage compartment and the temperature control unit of the container are thermally coupled together. The temperature control unit may in this case at least partially be arranged in the storage compartment or protrude into this, in order to provide a particularly efficient and good heat exchange with the storage compartment can. In addition, it is conceivable that the temperature control unit is indeed arranged in or on the container but outside of the storage compartment and is thermally coupled via a heat exchanger to the storage compartment. In that regard, a heat exchanger of the temperature control unit protrude into the interior of the storage compartment and / or be thermally coupled to at least one boundary wall of the storage compartment.

This results in a wide variety of configurations of the container, wherein the container basically preparable storage space can be taken largely completely or even partially from the temperature-controlled storage compartment. In this case, it is particularly conceivable that the container is subdivided into a plurality of storage compartments, of which at least one can be heated and / or cooled by means of the temperature control unit. It can also be provided, simultaneously several, each adjustable to different temperature levels Provide storage compartments in the container, one of which is heated while the other is coolable.

Such simultaneous heating and cooling of two storage compartments can preferably be provided with only a single temperature control unit, which is thermally coupled with a cooling and a heating side in each case with the correspondingly coolable and heatable storage compartments.

In that regard, according to a development, the at least one temperature control unit for heating and / or cooling of the at least one storage compartment formed, the temperature control unit may further comprise a separate temperature control, which is designed by means of at least one temperature sensor, the temperature of the at least one storage compartment at a predetermined level to hold and is accordingly designed for the automatic regulation of a thermal energy supply or removal.

According to a further preferred embodiment, the entire container by means of at least one guide rail in the vehicle longitudinal direction (x) is arranged displaceably on the motor vehicle. In particular, the entire container is arranged similar to a drawer below the rear-side floor panel of the motor vehicle, wherein the guide rails providing a rail guide for the container are preferably arranged on lateral side members of the vehicle body. In this way, the container can be transferred even when the trunk is closed in an at least partially projecting from the rear of the vehicle extract position, in which the container or its storage compartment is loading and unloaded. Thus, the container or its storage compartment can be unloaded even when loaded at least partially trunk.

According to a further preferred embodiment, the container is detachably attachable to the at least one, preferably to the two lateral guide rails fastened. Thus, as needed, the container can also be removed and z. B. be replaced by a load carrier system, which is displaceable by means of the guide rail in the vehicle longitudinal direction at the rear of the vehicle and in an extended loading position z. B. the entrainment of bulky items such. B. allows one or more bicycles.

According to a further embodiment, it is also conceivable that the temperature-controlled storage compartment can also be arranged detachably on the container so that the storage compartment is removed from the container as a whole with the content therein as it leaves the vehicle and separately in an otherwise tempered environment, for example in one stationary refrigerator can be stored.

According to a further preferred embodiment, the storage compartment is gas-tight and / or liquid-tight sealable formed to prevent contamination of the entrained in the outer area of the motor vehicle storage compartment, in particular its content largely. Due to the gas- and / or liquid-tight closeability of the storage compartment, this can be used in particular for carrying food.

In this case, according to a further development, it is further provided that the storage compartment can be closed by means of a cover mounted pivotably or displaceably on the container. It can also be provided that the storage compartment is provided with a gas and / or liquid-tight closing lid. A cover pivotally mounted on the container or on the storage compartment is preferably mounted on an end section facing away from the container, for example on a front wall of the container or storage compartment, wherein a hinge or pivot axis of the cover preferably extends substantially in the vehicle transverse direction (y).

In the extended position, the container can thus be opened by an intuitive and easy-to-use lifting its lid and closed again if necessary. It is also a quasi-automatic closing function conceivable, which z. B. can be triggered by a displacement of the container in its located below the bottom plate basic position. In this case, an upper side of an open lid cooperating with a rear edge of a floor panel or a crossmember of the vehicle such that the opened lid is pushed down upon insertion of the container from the bottom plate or from the corresponding cross member.

In this case, it is also conceivable to provide the container approximately with an electromechanical actuating device, by means of which the container can be largely automatically moved out of its basic position into the extended position. The actuator can be designed in particular remote-controlled to z. B. can send an opening command via a built-in vehicle key transmitter, so that the user can already open the container from a distance to the vehicle, comparable to an electrically and remotely operable tailgate.

A pivotally mounted lid is preferably with a force storage element, such. B. a torsion or torsion bar spring or coupled with a gas spring to hold the open lid in an open position.

The lid and / or an opening bordering the container or the storage compartment can also be provided with at least one sealing element in order to be able to seal the container or the storage compartment in a gas-tight and / or liquid-tight manner from the environment.

According to a further preferred embodiment, the storage compartment and / or the container has at least one, preferably a plurality of thermally insulated boundary walls. By means of a thermal insulation, the storage compartment or the entire container can be kept at a predetermined temperature level by using the lowest possible heating or cooling capacity. As a material for the container and / or for the storage compartment in particular thermally insulating plastics, such as thermoplastics, in particular foamed plastics, such as. As expanded polypropylene (EPP), in question.

According to a further preferred embodiment, the temperature control unit is formed thermoelectric. It is also operable with the vehicle electrical system voltage of a motor vehicle. The temperature control unit uses in particular the Seebeck effect. The temperature control unit may in particular one or more thermoelectric elements, such as. B. Peltier elements, which are suitable as a result of an application of electrical power both for cooling and for heating.

According to a further preferred embodiment, the temperature control unit can be coupled to a vehicle bus system of the motor vehicle and is accordingly designed remotely controllable via an on-board electronics of the motor vehicle. The temperature control unit can, for. B. can be coupled to the CAN bus or a comparable bus system of the motor vehicle. In this way, the temperature control unit z. B. be controlled via a central control unit of the motor vehicle or via the on-board electronics of the motor vehicle.

Here, various user scenarios are conceivable. So z. B. a vehicle occupant via appropriately trained and arranged in the vehicle interior controls z. B. adjust the temperature of the storage compartment individually. It is also conceivable, the end user various temperature modes available to steep, so that this z. B. between a heating, cooling and / or freezing mode of the container can select.

By coupling the temperature control unit with the on-board electronics is also conceivable to display the currently prevailing temperature of the container or its storage compartment about a multi-function display in the instrument panel of the motor vehicle. Furthermore, it is conceivable that the temperature control unit can be controlled by means of the on-board electronics as a function of the respective vehicle state. Is the state of charge of a motor vehicle battery about comparatively low and the motor vehicle z. B. provided with an automatic start-stop, so the temperature control unit may be at least temporarily deactivated at standstill of the motor vehicle with the internal combustion engine off, in order to conserve energy resources of the motor vehicle accordingly.

According to a further embodiment it is provided that the temperature control unit and the storage compartment are mechanically decoupled from each other. Here, in particular, the temperature control unit is fixed to the vehicle with the vehicle, or coupled to the vehicle body. When pulling out the transport device, the temperature control unit remains in its position, while the storage compartment transitions into a preferably extended for loading or unloading rear side position. A location or vehicle fixed arrangement of the temperature control unit simplifies their electrical connection to the on-board electronics.

According to a further independent aspect, a motor vehicle is further provided, which has a rear-side transport device described above.

In a preferred embodiment, the temperature control unit of the transport device is coupled to an on-board electronics of the motor vehicle. The temperature control unit is adjustable or adjustable via at least one operating element arranged in the motor vehicle interior.

Furthermore, state parameters of the container and / or its storage compartment can be displayed via the on-board electronics to the end user. By means of the transport device, which can be pulled out below the bottom plate at the rear of a motor vehicle, goods and objects can be carried, so to speak, in the outer space of the motor vehicle.

Brief description of the figures

Other objects, features and advantageous applications are described in the following description of exemplary embodiments. Hereby show:

1 a schematic representation of the rear of a vehicle body provided with a transport device viewed from above,

2 a perspective view of the body according to 1 viewed from diagonally behind,

3 a view of the body viewed from below,

4 another, the 2 corresponding perspective view of the vehicle body with the rear side extended transport device,

5 a further configuration of the rear-side transport device in the extended state with the lid open and

6 a further embodiment of an open transport device with a compared to 5 other storage compartment division.

Detailed description

In the 1 to 3 is a rear-side transport device 10 shown below a floor panel 16 a motor vehicle body in the vehicle longitudinal direction (x), similar to a drawer, is arranged extendable. In the 1 to 3 is the rear-side transport device 10 in their retracted basic position. The in the 1 to 4 only partially illustrated motor vehicle body has two lateral, substantially in the vehicle longitudinal direction (x) extending rear side rail 12 . 14 on, which has a in 2 shown cross member 26 structurally interconnected.

Above the side members 12 . 14 enters, in 2 only partially illustrated bottom plate 16 , which provides a rear loading floor of the motor vehicle. In the 1 . 2 and 4 are in the range of lateral wheel arches 22 . 24 each strut recordings 18 . 20 shown for the rear wheel connection.

The rear-side transport device 10 has one opposite the side rails 12 . 14 extendable container 50 on which a storage compartment 51 and a temperature control unit 52 having. The container 50 is here preferably designed as a modular unit and can be removed on the side rails, on the side rails 12 . 14 attached guide rails 32 . 34 be arranged detachably.

As in 2 Roughly illustrated, the transport device 50 by means of lateral locking elements 36 . 38 be fixed in the basic position. The locking elements 36 . 38 are z. B. formed in the manner of a snap lock and can control cables via 42 . 44 and an associated actuator 40 be transferred to a release position in which the container 50 between the in the 1 and 3 shown basic position and in the 4 and 5 shown extended loading position is displaced. The actuator 40 may differ from the in 2 shown embodiment also in the vehicle interior 66 Be mounted approximately in the immediate vicinity of a driver's seat, wherein the control cable 42 can provide a kind of mechanical remote control. Deviating from this, of course, an electromechanical remote control can be provided, via the on-board electronics 62 can be controlled and actuated via a wireless remote control integrated in the vehicle key, for example.

The container 50 has z. B. a box-shaped or cubic shape with a rear wall 30 , a front wall 31 and with side walls 55 on. In addition, the container 50 with an in 3 indicated soil 57 provided over the storage compartment 51 as well as the temperature control unit 52 extends. The floor 57 opposite is the container 50 one in 5 shown in its open position, pivotally mounted lid 54 on, which at the rear-side back wall 30 opposite front wall 31 is pivotally mounted.

In the in 5 shown embodiment, the temperature control unit 52 the temperature-controlled storage compartment 51 facing a heat exchanger 53 on, by means of which thermal energy between the temperature control unit 52 and the storage compartment 51 can be exchanged. The lid is preferably with a in 4 shown, designed as a trough handle 56 provided an intuitive lifting of the lid from the in 4 shown closed position in the in 5 illustrated opened and raised position allows. In 4 is the subdivision of the container 50 in temperature control unit 52 and storage compartment 51 shown in dashed lines.

The arrangement of the extendable container 50 below the rear floor panel 16 bring this in close proximity to one in 3 through two endpots 46 and associated pipes shown exhaust system. Especially if the container 50 for cooling, such as perishable goods, use, this is a sufficient thermal insulation of the container and its container walls 30 . 31 . 55 . 57 . 54 advantageous.

In 3 is also a multi-part panel 48 a bumper cross member shown. The costume 48 here has several cladding sections 43 . 45 . 47 on, wherein the middle panel section 45 with the transport device 10 is coupled and when pulling out of the container 50 equally in one opposite the marginal trim sections 43 . 47 extended position passes, as in 4 is indicated.

In the 3 and 5 is also the electrical connection of the transport device 10 to the on-board electronics 62 of the motor vehicle indicated schematically. So can the container 50 by means of a plug 68 with a vehicle bus system 60 releasably coupled, with a connector either via a retractable cable or fixed by the vehicle side and about on the front wall 31 of the container 50 provided plug-in elements can be formed, the z. B. when removing the container 50 in the extended position to solve automatically and in a transfer of the container 50 in the in 3 shown basic position again connect automatically.

By means of a plug 68 is the container 50 with the vehicle bus system 60 coupled, so that the end user about a in the motor vehicle interior 66 provided operating element 64 and about the associated on-board electronics 62 various functions of the container 50 , in particular its temperature control unit 52 can specifically select, set and configure.

Deviating from this, the temperature control unit 52 also mechanically from the storage compartment 51 be formed separable or decoupled. So can the temperature control unit 52 z. B. permanently attached to the vehicle and for the purposes of a withdrawal of the storage compartment 51 be mechanically separated from a basic position of this. Such a vehicle-mounted connection of the temperature control unit 52 simplifies their electrical contact with the on-board electronics 62 ,

Regardless, it is also conceivable that via the vehicle bus system 60 also about the on-board electronics 62 determinable condition parameters of the container 50 such as the temperature of his storage compartment 51 via an ad 70 can be provided to the end user.

In addition or alternatively, the on-board electronics 62 also via a communication interface 72 with external receiving and transmitting devices 74 , such as B. communicate with a smartphone. The communication interface 72 allows z. B. notify the end user via SMS that the temperature of the storage compartment 51 approaching a critical limit and / or that z. B. due to a relatively low state of charge of the vehicle battery emergency shutdown of the cooling function of the storage compartment 51 has to be done shortly. But even in the opposite direction is conceivable that the end user via a smartphone or the like transmitter 74 , Control commands to the transport device 10 can send, so that z. B. a hitherto switched off and largely inactive transport device 10 , or her storage compartment 51 , z. B. can be tempered even before starting the vehicle to a desired temperature.

The embodiment of the container 50 as he is in 6 shown differs only in terms of its internal structure compared to in 5 shown embodiment. This is how the container points 50 according to 6 a temperature-controlled storage compartment 51 on, which extends over the entire longitudinal extent of the container 50 extends. The temperature control unit 52 with their heat exchanger 53 is, based on the vehicle orientation, right in the front of the container 50 arranged. In vehicle longitudinal direction (x) behind the temperature control unit 52 is another storage compartment 59 provided, which by a preferably thermally insulating partition 58 from the tempered storage compartment 51 is disconnected.

The further storage compartment 59 is not in thermal contact with the temperature control unit 52 and is therefore not specifically temperature controlled. The storage compartment 59 is preferably used to accommodate other entrained on the vehicle items such. As a tire repair kit, a first aid kit, tool, a jack or the like.

Although the in 5 and 6 Ausgestattungen shown the entire container with a pivotally mounted lid 54 is closed, embodiments are also conceivable, in which only the tempered storage compartment 51 is provided with a comparatively small, not shown here lid or the like closure.

The illustrated embodiments show only possible embodiment of the invention to which further numerous variants are conceivable and within the scope of the invention. The exemplary embodiments shown are in no way to be construed as limiting the scope, applicability or configuration possibilities of the invention. The present description merely shows the person skilled in the art a possible implementation of an exemplary embodiment according to the invention. Thus, the most varied modifications can be made to the function and arrangement of elements described without thereby abandoning the scope of protection or equivalents defined by the following claims.

LIST OF REFERENCE NUMBERS

10

transport means

12

longitudinal beams

14

longitudinal beams

16

floor panel

18

MacPherson strut

20

MacPherson strut

22

wheelhouse

24

wheelhouse

26

crossbeam

30

rear wall

31

front wall

32

guide rail

34

guide rail

36

locking element

38

locking element

40

actuator

42

control cable

43

panel section

44

control cable

45

panel section

46

silencer

47

panel section

48

bumper fascia

50

container

51

storage compartment

52

Temperature control unit

53

heat exchangers

54

cover

55

Side wall

56

Handle

57

ground

58

partition wall

59

storage compartment

60

vehicle bus system

62

board electronics

64

operating element

66

Vehicle interior

68

plug

70

display

72

Communication Interface

74

Transmitter and receiver

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10112272 A1 [0003]

Claims (14)

Rear-side transport device for a motor vehicle with one below a bottom plate ( 16 ) of the motor vehicle can be arranged ( 50 ), which a storage compartment ( 51 ) and a temperature control unit ( 52 ) for tempering the storage compartment ( 51 ) having. Rear-side transport device according to claim 1, wherein the storage compartment ( 51 ) and the temperature control unit ( 52 ) are thermally coupled together. Rear-side transport device according to one of the preceding claims, wherein a heat exchanger ( 53 ) of the temperature control unit ( 52 ) in the interior of the storage compartment ( 51 ) and / or with a boundary wall of the storage compartment ( 51 ) is thermally coupled .. Rear-side transport device according to one of the preceding claims, wherein the temperature control unit ( 52 ) for heating and / or cooling the storage compartment ( 51 ) is trained. Rear-side transport device according to one of the preceding claims, wherein the container ( 50 ) by means of at least one guide rail ( 32 . 34 ) in the vehicle longitudinal direction (x) on the motor vehicle can be arranged displaceable. Rear-side transport device according to claim 5, wherein the container ( 50 ) detachably on the at least one guide rail ( 32 . 34 ) is attachable. Rear-side transport device according to one of the preceding claims, wherein the storage compartment ( 51 ) Gas-tight and / or liquid-tight is closed. Rear-side transport device according to one of the preceding claims, wherein the storage compartment ( 51 ) by means of a pivotable or displaceable on the container ( 50 ) stored lid ( 54 ) is closable. Rear-side transport device according to one of the preceding claims, wherein the storage compartment ( 51 ) thermally isolated boundary walls ( 30 . 54 . 55 . 57 ) having. Rear-side transport device according to one of the preceding claims, wherein the temperature control unit ( 52 ) thermoelectric and operable with a vehicle electrical system voltage of the motor vehicle. Rear-side transport device according to one of the preceding claims, wherein the temperature control unit ( 52 ) with a vehicle bus system ( 60 ) and via an on-board electronics ( 62 ) of the motor vehicle is designed remotely controllable. Rear-side transport device according to one of the preceding claims, wherein the temperature control unit ( 52 ) and the storage compartment ( 51 ) are mechanically decoupled from each other. Motor vehicle with a rear-side transport device according to one of the preceding claims. Motor vehicle according to claim 13, wherein the temperature control unit ( 52 ) with an on-board electronics ( 62 ) of the motor vehicle is coupled and via at least one in the motor vehicle interior ( 66 ) arranged control element ( 64 ) is controllable.

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