Seat arrangement and motor vehicle

Abstract

The invention relates to a seat arrangement (4) for a motor vehicle (1), comprising a seat base (9) made of a plastic material, an electrical and / or electronic component (11, 12) arranged in the seat base (9) and acting as a heat source, and a heat-sensitive electrochemical energy store (13) arranged in the seat base (9), the seat base (9) thermally separates the electrical and / or electronic component (11, 12) and the electrochemical energy store (13) from each other. The invention also relates to a motor vehicle having such a seat arrangement.

Description

TECHNICAL FIELD

[0001] One aspect of the present application relates to a seat arrangement for a motor vehicle. A further aspect of the present application relates to a motor vehicle having such a seat arrangement. BACKGROUND

[0002] Battery electric vehicles (BEV) are increasingly popular. Such battery electric vehicles usually have a so-called front trunk (Frunk), i.e. a storage space arranged below the engine hood. Vehicles driven by internal combustion engines can also have such a front trunk. This requires a rearrangement of components, in particular electrical and / or electronic components. For example, such electrical and / or electronic components can be arranged below the second row of seats or rear seat row of the vehicle. However, in this case, certain components can act as heat sources, while other components can be heat sensitive. This requires a thermal separation of these components.

[0003] DE 11 2008 003 874 B4 describes a vehicle seat arrangement having a seat surface designed for mounting on a vehicle, wherein the seat surface has a foam layer and a first foamed polymer layer arranged adjacent to the foam layer, wherein the first foamed polymer layer defines a first recess configured to accommodate an electrical component.

[0004] GB 2574788 A exhibits a seat base for a vehicle seat row.

[0005] DE 10 2008 022 772 A1 describes a seat base having an air guiding channel through which cooling air can be supplied to a battery. SUMMARY

[0006] The technical problem addressed by the present application is to provide a seat arrangement for a motor vehicle in which a thermal separation of components can be achieved.

[0007] The technical problem is solved by a seat arrangement according to the present application.

[0008] One aspect of the present application relates to a seat arrangement for a motor vehicle. The seat arrangement has a seat base made of a plastic material, an electrical and / or electronic component arranged within the seat base which acts as a heat source, and an electrochemical energy storage which is sensitive to heat arranged within the seat base, wherein the seat base thermally separates the electrical and / or electronic component from the electrochemical energy storage from one another.

[0009] With such a seat arrangement, in particular with such a seat base, a heat-emitting electrical and / or electronic component can be thermally separated from an electrochemical energy storage which is sensitive to heat, so that no heat is transferred from the electrical and / or electronic component to the electrochemical energy storage.

[0010] This seating arrangement is suitable for both battery-electric vehicles and internal combustion engine-driven vehicles. It is particularly suitable for the rear seats or second-row seats of motor vehicles. The seat base is preferably made of foamed plastic material. Any plastic material can be used for this purpose, such as polypropylene, polystyrene, or polyethylene. Preferably, the seat base is manufactured by filling a mold with foamed plastic material. The mold determines the geometry of the seat base. For example, recesses, through-holes, receiving areas, channels, etc., can be formed on the seat base using the mold. Alternatively, the seat base can be machined from a plastic semi-finished product using a subtractive manufacturing process.

[0011] The seat base preferably includes multiple receiving areas where electrical and / or electronic components and electrochemical energy storage devices can be housed. However, the electrical and / or electronic components and electrochemical energy storage devices may be placed in different receiving areas of the seat base. The seat assembly can have any number of different electrical and / or electronic components. Only one electrical and / or electronic component is discussed below. The seat base may also house any other components or parts of an internal combustion engine-driven motor vehicle.

[0012] Preferably, the seat base surrounds or encloses the electrical and / or electronic components and the electrochemical energy storage device. However, this does not preclude the aforementioned accommodating area for the electrical and / or electronic components and / or electrochemical energy storage device from being open in one direction, so that the electrical and / or electronic components and the electrochemical energy storage device can be placed into or introduced into the seat base. For example, the electrical and / or electronic components and the electrochemical energy storage device are mounted on the chassis of a motor vehicle, wherein the seat base is fitted over the electrical and / or electronic components and the electrochemical energy storage device.

[0013] In one embodiment, the plastic material is expanded polypropylene. Expanded polypropylene can also be called EPP. However, as mentioned above, different plastic materials can also be used.

[0014] In one embodiment, the seat base has a support structure, particularly a wire structure, that is permeable to radio waves. This support structure carries or supports the seat base. However, radio waves from electrical and / or electronic components, such as communication modules, are not affected or shielded, or are only minimally affected or shielded. This can be achieved, for example, by positioning the wires of the support structure at a suitable distance from each other, such that the support structure is permeable to or transparent to radio waves. The seat base itself carries the aforementioned seat row and bears the weight of the seat row itself or the seat cushion, as well as the weight of the passenger sitting on the seat cushion. In particular, the seat base replaces a so-called seat mounting plate made of metal components. The seat base may also have, for example, fastening elements embedded in plastic material for securing the seat base to the vehicle chassis.

[0015] In one embodiment, the electrical and / or electronic components comprise a main fuse box and / or a communication module. As already mentioned before, any number of different electrical and / or electronic components can be provided. Since the seat base is made of a plastic material, no undesired shielding of the communication module occurs. The seat base does not shield radio waves, since the seat base is made of a plastic material.

[0016] In one embodiment, the electrochemical energy store is a low-voltage accumulator. For example, the electrochemical energy store is a 12-volt accumulator. The electrochemical energy store can be a lithium accumulator.

[0017] In one embodiment, the seat base has a first accommodation region for accommodating the electrical and / or electronic components and a second accommodation region for accommodating the electrochemical energy store, wherein the seat base has a wall section which is arranged between the first accommodation region and the second accommodation region in order to thermally separate the electrical and / or electronic components from the electrochemical energy store from one another. The seat base can have any number of such accommodation regions. The wall section is in particular made of the same plastic material as the seat base is made of. The accommodation regions can be formed as recesses or cutouts which are provided in the seat base. For example, the accommodation regions can be produced by molding the respective contours on a mold which is foamed with a plastic material. Alternatively, the accommodation regions can also be produced by machining the accommodation regions in the seat base or in a plastic semi-finished product, for example using a subtractive process, in particular a milling process.

[0018] In one embodiment, the wall section has a passage through which a lead wire leading from the electrical and / or electronic components to the electrochemical energy store is guided. The passage can be a drilled hole. The passage can also be a channel or a cut which is open in one direction. After the lead wire has been guided through, the passage can be closed with a thermal insulation material.

[0019] In one embodiment, the seat arrangement has a fan for ventilating the first accommodation region. By means of the fan, fresh air can be supplied to the first accommodation region, for example. Alternatively, by means of the fan, hot air can be discharged from the first accommodation region. The second accommodation region can also be correspondingly provided with such a fan. Any number of fans can be provided.

[0020] In one embodiment, the seat base has a cable slot through which a lead wire leading to and / or from the electrical and / or electronic components is guided. The cable slot is in particular formed as a cutout which leads from the first accommodation region to the surroundings of the seat base. Alternatively, the cable slot can also be a passage or a drilled hole.

[0021] In one embodiment, the seat arrangement has a seat row, wherein the seat base carries the seat row. This means in particular that the seat base bears the weight of the seat row and, if necessary, the weight of a passenger sitting on the seat row. The seat row is in particular a second row of seats or a rear seat row of a motor vehicle.

[0022] In one embodiment, the seat arrangement has a motor vehicle chassis, wherein the seat row is connected to the motor vehicle chassis, and wherein the seat base is arranged between the seat row and the motor vehicle chassis. In order to connect the seat row to the motor vehicle chassis, corresponding connection points or limit points can be provided on the motor vehicle chassis. In particular, the seat belts of the seat row are also mounted directly on the motor vehicle chassis.

[0023] In one embodiment, the seat base is connected with the motor vehicle chassis. For this purpose, for example, clamping elements or snap-in elements can be used. A threaded connection can also be employed. The fixing elements can be embedded in the plastic material of the seat base for fixing the seat base on the motor vehicle chassis.

[0024] In one embodiment, the electrical and / or electronic components and / or the electrochemical energy store are connected with the motor vehicle chassis. Preferably, the electrical and / or electronic components and / or the electrochemical energy store are not fixedly connected with the seat base. In particular, the seat base is sheathed over the electrical and / or electronic components and / or the electrochemical energy store mounted on the motor vehicle chassis.

[0025] In one embodiment, the seat arrangement has a high-voltage energy store mounted on the motor vehicle chassis, wherein the seat base is arranged above the high-voltage energy store. In particular, the electrical and / or electronic components and / or the electrochemical energy store are arranged between the high-voltage energy store and the seat base.

[0026] A further aspect of the application relates to a motor vehicle having such a seat arrangement.

[0027] The motor vehicle is a battery electric vehicle (BEV) or a hybrid vehicle. The motor vehicle is in particular a passenger car.

[0028] The application also comprises extended designs of the motor vehicle according to the application, which have the features as described above in connection with the extended designs of the seat arrangement according to the application. The respective extended designs of the motor vehicle according to the application are therefore not described again here.

[0029] The application also comprises combinations of features of the described embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0030] Embodiments of the application will be described below. In the drawings:

[0031] Figure 1schematic side view showing an embodiment of a motor vehicle;

[0032] Figure 2 schematic bottom view showing a seat base of a motor vehicle according to Figure 1

[0033] Figure 3 schematic side view showing a seat arrangement of a motor vehicle according to Figure 1

[0034] The embodiments set forth below are preferred embodiments of the present application. In these embodiments, the components described are individual, self-contained features of the present application that can be viewed independently of one another, and each form an extension of the present application independently of one another and thus can also be viewed as an integral part of the present application, individually or in a different combination than shown. Furthermore, the described embodiments can also be supplemented by the other features of the present application that have been described.

[0035] In the drawings, functionally equivalent elements are each provided with the same reference signs. DETAILED DESCRIPTION

[0036] Figure 1 A motor vehicle 1 is shown in Fig. 1. The motor vehicle 1 can be, for example, a passenger car. The motor vehicle 1 is a battery electric vehicle (BEV) or a hybrid vehicle. The motor vehicle 1 can also be a motor vehicle driven by an internal combustion engine. The motor vehicle 1 can be moved in a driving direction 2. The motor vehicle 1 has a driver's seat 3 and a not shown co-driver's seat.

[0037] Furthermore, the motor vehicle 1 has a seat arrangement 4. The seat arrangement 4 has a seat row 5 arranged behind the driver's seat 3. For example, three passengers can be seated on the seat row 5. The seat row 5 is a second row of seats or a rear seat row of the motor vehicle 1. The seat row 5 has a one-piece or multi-piece seat cushion 6 and a one-piece or multi-piece backrest 7. In addition to the seat row 5, the seat arrangement 4 also comprises a motor vehicle chassis 8, which is shown in Fig. 1 only in a very simplified schematic view. Figure 1

[0038] The seat arrangement 4 also has a seat base 9 arranged between the motor vehicle chassis 8 and the seat row 5, in particular the seat cushion 6, which carries the seat row 5. The seat base 9 is made of a plastic material. The plastic material is foamed or blistered. As a suitable plastic material, for example, expanded polypropylene (EPP) can be used. However, any other plastic material can also be used.

[0039] ​​​The seat base 9 is connected to the motor vehicle chassis 8. To this end, for example, a suitable latching connection (German: Rastverbindung) or a snap connection can be provided. A threaded connection can also be used between the seat base 9 and the motor vehicle chassis 8. The seat base 9 can have fixing elements which are embedded in a plastic material.

[0040] The seat base 9 bears the weight of the seat cushion 6 and the weight of the passengers sitting on the seat cushion 6. The seat row 5 itself and the safety belts of the seat row 5 are directly connected to the motor vehicle chassis 8, so that, for example, when the motor vehicle 1 brakes, the forces acting on the safety belts which hold the passengers sitting on the seat row 5 are not introduced into the seat base 9, but into the motor vehicle chassis 8. In order to fix the seat row 5 and the safety belts to the motor vehicle chassis 8, corresponding stop points or fixing points are provided.

[0041] The seat base 9 can have a support structure, in particular a supporting wire structure or a supporting wire frame. The support structure can be made of a metal material. However, the support structure is designed in such a way that it does not or only minimally influences radio waves. To this end, for example, the wires of the support structure can be positioned at a suitable distance from one another. Furthermore, for example, the fixing elements for fixing the seat base 9 to the motor vehicle chassis 8 can be embedded in a plastic material.

[0042] A high-voltage energy store 10 is also mounted on the motor vehicle chassis 8. In the orientation shown, Figure 1 The high-voltage energy store 10 is arranged below the seat base 9. The seat base 9 is thus arranged between the seat row 5 and the high-voltage energy store 10.

[0043] Figure 2 A schematic bottom view of the seat base is shown according to view II of Figure 1 Figure 3 A schematic side view of the seat arrangement 4 is shown. In the following, reference will be made to Figure 2 and Figure 3 .

[0044] As Figure 3 ​The seat base 9 is wedge-shaped in a side view, as shown. In addition to the motor vehicle chassis 8 and the seat base 9, the seat arrangement 4 has at least one electrical and / or electronic component 11, 12 arranged in the seat base 9. Any number of electrical and / or electronic components 11, 12 can be provided. In the present case, for example, a first electrical and / or electronic component 11 in the form of a main fuse box and a second electrical and / or electronic component 12 in the form of a communication module are provided. Since the seat base 9 is made of a plastic material, it is possible to achieve that the second electrical and / or electronic component 12 in the form of a communication module is not shielded in an undesirable manner by the seat base 9. In particular, the seat base 9 does not shield radio waves. This can also be achieved in that the aforementioned support structure is designed to be radio wave-shielded. If the motor vehicle 1 is a motor vehicle driven by an internal combustion engine, any other components of the motor vehicle 1 can be installed in the seat base 9.

[0045] In addition to the first electrical and / or electronic component 11 and / or the second electrical and / or electronic component 12, the seat arrangement 4 has an electrochemical energy store 13 arranged in the seat base 9. This electrochemical energy store 13 is preferably a low-voltage storage battery. Both the electrical and / or electronic components 11, 12 and the electrochemical energy store 13 are completely placed in the seat base 9.

[0046] The electrical and / or electronic components 11, 12 are heat sources and therefore emit heat, while the electrochemical energy store 13 is heat-sensitive. However, by means of the seat base 9 it is possible to thermally separate the electrical and / or electronic components 11, 12 and the electrochemical energy store 13 from one another, so that the electrical and / or electronic components 11, 12 cannot or only to a reduced extent transfer heat to the electrochemical energy store 13.

[0047] In particular, the seat base 9 has a first accommodation region 14, which is open downward in the orientation of Figure 1 the first accommodation region 14 is, for example, a recess or a cutout provided in the seat base 9. Furthermore, the seat base 9 has a second accommodation region 15 for accommodating the electrochemical energy store 13. The second accommodation region 15 is also a recess or a cutout provided in the seat base 9.

[0048] Between the first accommodation region 14 and the second accommodation region 15 there is a wall section 16, which is likewise made of the plastic material with which the seat base 9 is manufactured. The wall section 16 is part of the seat base 9. By means of the wall section 16, it is possible to thermally separate the first accommodation region 14 from the second accommodation region 15. Thereby, it is possible to thermally separate the electrical and / or electronic components 11, 12 and the electrochemical energy store 13 from one another.

[0049] But in order to enable an electrical connection between the electrical and / or electronic components 11, 12 and the electrochemical energy store 13, the wall section 16 can have a passage 17 through which a conductor 18 leading from the electrical and / or electronic components 11, 12 to the electrochemical energy store 13 is guided. The passage 17 can be a drilled hole provided in the wall section 16. Further, the passage 17 can also be a cut provided in the wall section 16. After the conductor 18 has been guided through the passage 17, the passage 17 can be closed, for example, with a thermal insulation material.

[0050] The electrical and / or electronic components 11, 12 and / or the electrochemical energy store 13 are preferably fixedly connected with the motor vehicle chassis 8 and not fixedly connected with the seat base 9. But alternatively, the electrical and / or electronic components 11, 12 and / or the electrochemical energy store 13 can also be connected with the seat base 9.

[0051] The first accommodation region 14 can correspondingly be provided with a fan 19 for ventilating the first accommodation region 14. For example, fresh air can be supplied to the first accommodation region 14 by means of the fan 19. Alternatively, hot air can be discharged from the first accommodation region 14 by means of the fan 19. The fan 19 is optional. The second accommodation region 15 can also correspondingly be provided with such a fan 19.

[0052] Further, the seat base 9 has a cable channel 20 leading from the first accommodation region 14 to the surroundings of the seat base 9. A conductor 21 leading to and / or from the electrical and / or electronic components 11, 12 can be guided through the cable channel 20. The second accommodation region 15 can also correspondingly be provided with such a cable channel 20.

[0053] List of reference signs:

[0054] 1 motor vehicle

[0055] 2 direction of travel

[0056] 3 driver's seat

[0057] 4 seat arrangement

[0058] 5 seat row

[0059] 6 seat cushion

[0060] 7 backrest

[0061] 8 motor vehicle chassis

[0062] 9 seat base

[0063] 10 high-voltage energy store

[0064] 11 component

[0065] 12 component

[0066] 13 energy store

[0067] 14 accommodation region

[0068] 15 accommodation region

[0069] 16 wall section

[0070] 17 passage

[0071] 18 conductor

[0072] 19 fan

[0073] 20 cable channel

[0074] 21 conductor

Claims

1. A seat assembly (4) for a motor vehicle (1), comprising a seat base (9) made of plastic material, electrical and / or electronic components (11, 12) disposed within the seat base (9) and functioning as a heat source, and a heat-sensitive electrochemical energy storage device (13) disposed within the seat base (9), wherein, The seat base (9) thermally separates the electrical and / or electronic components (11, 12) from the electrochemical energy storage device (13).

2. The seating device according to claim 1, wherein, The plastic material is expanded polypropylene.

3. The seating device according to claim 1 or 2, wherein, The seat base (9) has a support structure, particularly a wire structure, which is permeable to radio waves.

4. The seating device according to any one of claims 1 to 3, wherein, The electrical and / or electronic components (11, 12) include a main fuse box and / or a communication module.

5. The seating device according to any one of claims 1 to 4, wherein, The electrochemical energy storage device (13) is a low-voltage battery.

6. The seating device according to any one of claims 1 to 5, wherein, The seat base (9) has a first receiving area (14) for receiving the electrical and / or electronic components (11, 12) and a second receiving area (15) for receiving the electrochemical energy storage device (13), and wherein the seat base (9) has a wall section (16) arranged between the first receiving area (14) and the second receiving area (15) to thermally separate the electrical and / or electronic components (11, 12) from the electrochemical energy storage device (13).

7. The seating device according to claim 6, wherein, The wall section (16) has a through-hole (17) through which a wire (18) from the electrical and / or electronic components (11, 12) to the electrochemical energy storage device (13) is guided.

8. The seating device according to claim 6 or 7, having a fan (19) for ventilating the first receiving area (14).

9. The seating device according to any one of claims 1 to 8, wherein, The seat base (9) has a cable channel (20) through which wires (21) leading to and / or from the electrical and / or electronic components (11, 12) are guided.

10. The seating device according to any one of claims 1 to 9, comprising a seat row (5), wherein, The seat base (9) supports the seat row (5).

11. The seating device according to claim 10, comprising a motor vehicle chassis (8), wherein, The seat row (5) is connected to the vehicle chassis (8), and the seat base (9) is disposed between the seat row (5) and the vehicle chassis (8).

12. The seating device according to claim 11, wherein, The seat base (9) is connected to the vehicle chassis (8).

13. The seating device according to claim 11 or 12, wherein, The electrical and / or electronic components (11, 12) and / or the electrochemical energy storage device (13) are connected to the vehicle chassis (8).

14. The seating device according to any one of claims 11 to 13, comprising a high-voltage energy storage device (10) mounted on the vehicle chassis (8), wherein, The seat base (9) is arranged above the high-voltage energy storage device (10).

15. A motor vehicle (1) having a seat device (4) according to any one of claims 1 to 14.

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