Seating 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 within the seat base (9) which acts as a heat source, and an electrochemical energy storage device (13) arranged within the seat base (9) which is heat-sensitive, wherein the seat base (9) thermally separates the electrical and / or electronic component (11, 12) and the electrochemical energy storage device (13) from each other.

Description

[0001] One aspect of the invention relates to a seating arrangement for a motor vehicle. Another aspect of the invention relates to a motor vehicle with such a seating arrangement.

[0002] Battery electric vehicles (BEVs) are becoming increasingly common. These vehicles often feature a so-called frunk, a storage compartment located beneath the hood. Internal combustion engine vehicles can also have a frunk. This necessitates the relocation of components, particularly electrical and / or electronic components. For example, such components might be placed beneath a second row of seats or the rear seats. However, some components may act as heat sources, while others are more sensitive to heat. This necessitates thermal separation of these components.

[0003] DE 11 2008 003 874 B4 describes a vehicle seat arrangement with a seat surface designed for attachment to 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 shows a seat base for a row of seats in a vehicle.

[0005] DE 10 2008 022 772 A1 describes a seat base with an air duct by which cooling air can be supplied to a battery.

[0006] The object of the present invention is to create a seating arrangement for a motor vehicle in which thermal separation of components is possible.

[0007] This problem is solved by a seating arrangement according to the independent claim.

[0008] One aspect of the invention relates to a seating arrangement for a motor vehicle. The seating arrangement comprises 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 device arranged within the seat base which is heat-sensitive, wherein the seat base thermally separates the electrical and / or electronic component and the electrochemical energy storage device from each other.

[0009] By means of such a seating arrangement, in particular by means of such a seat base, it is possible to thermally separate the heat-emitting electrical and / or electronic component from the heat-sensitive electrochemical energy storage device, so that no heat is transferred from the electrical and / or electronic component to the electrochemical energy storage device.

[0010] The seating arrangement is suitable for both battery-electric and internal combustion engine vehicles. It is particularly well-suited for a rear or second row of seats. The seat base is preferably made of a foamed plastic material. Any plastic material, such as polypropylene, polystyrene, or polyethylene, can be used. Preferably, a mold is filled with the plastic material to produce the seat base. The mold determines the geometry of the seat base. For example, recesses, openings, receiving areas, channels, or the like can be molded into the seat base using the mold. Alternatively, the seat base can be machined from a semi-finished plastic product using a subtractive manufacturing process.

[0011] The seat base preferably comprises several receiving areas in which the electrical and / or electronic component and the electrochemical energy storage device can be placed. However, the electrical and / or electronic component and the electrochemical energy storage device are placed in different receiving areas of the seat base. The seat assembly can include any number of different electrical and / or electronic components. The following discussion focuses on only one electrical and / or electronic component. The seat base can also accommodate any other components or parts of internal combustion engine vehicles.

[0012] Preferably, the seat base encloses or encapsulates the electrical and / or electronic component and the electrochemical energy storage device. However, this does not preclude the aforementioned receiving areas for the electrical and / or electronic component and / or the electrochemical energy storage device from being open in one direction, so that the electrical and / or electronic component and the electrochemical energy storage device can be inserted or placed into the seat base. For example, the electrical and / or electronic component and the electrochemical energy storage device are mounted on a motor vehicle chassis, with the seat base being placed over the electrical and / or electronic component and the electrochemical energy storage device.

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

[0014] In one embodiment, the seat base has a support structure, in particular a wire structure, which is transparent to radio waves. The support structure carries or supports the seat base. However, radio waves from the electrical and / or electronic component, for example, a communication module, are not affected 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, so that the support structure is continuous or transparent to radio waves. The seat base itself supports the aforementioned row of seats and bears their own weight, or the weight of a seat cushion in the row and the weight of passengers sitting on the seat cushion. In particular, the seat base replaces a so-called seat pan made of metal components.The seat base may also include, for example, fastening elements embedded in the plastic material for attaching the seat base to the vehicle chassis.

[0015] In one embodiment, the electrical and / or electronic component comprises a main fuse box and / or a communication module. As mentioned previously, any number of different electrical and / or electronic components can be provided. Because the seat base is made of plastic, there is no undesirable shielding of the communication module. The seat base does not block radio waves, as it is made of plastic.

[0016] In one embodiment, the electrochemical energy storage device is a low-voltage battery. For example, the electrochemical energy storage device is a 12-volt battery. The electrochemical energy storage device can also be a lithium-ion battery.

[0017] In one embodiment, the seat base has a first receiving area for receiving the electrical and / or electronic component and a second receiving area for receiving the electrochemical energy storage device. The seat base includes a wall section located between the first and second receiving areas to thermally separate the electrical and / or electronic component from the electrochemical energy storage device. The seat base can have any number of such receiving areas. The wall section is preferably made of the same plastic material as the seat base. The receiving areas can be designed as recesses or indentations provided in the seat base. For example, the receiving areas can be produced by molding corresponding contours onto a form that is filled with the plastic material.Alternatively, the receiving areas can also be produced by incorporating them into the seat base or a semi-finished plastic product, for example using a subtractive process, in particular a milling process.

[0018] In one embodiment, the wall section has an opening through which a conductor leading from the electrical and / or electronic component to the electrochemical energy storage device passes. The opening can be a bore. It can also be a channel open in one direction or a cutout. After the conductor has passed through, the opening can be sealed with a thermally insulating material.

[0019] In one embodiment, the seating arrangement includes a fan for ventilating the first receiving area. The fan can be used, for example, to supply fresh air to the first receiving area. Alternatively, the fan can be used to extract warm air from the first receiving area. A similar fan can also be assigned to the second receiving area. Any number of fans can be provided.

[0020] In one embodiment, the seat base has a cable duct through which cables leading to and / or from the electrical and / or electronic component are routed. The cable duct is specifically designed as a cutout extending from the first receiving area to the surrounding area of ​​the seat base. Alternatively, the cable duct can also be a through-hole or a bore.

[0021] In one embodiment, the seating arrangement comprises a row of seats, with the seat base supporting the row of seats. This means, in particular, that the seat base absorbs the weight of the row of seats and, if applicable, of passengers seated in the row. The row of seats is, in particular, a second row or rear row of seats in the motor vehicle.

[0022] In one embodiment, the seating arrangement comprises a vehicle chassis, wherein the row of seats is attached to the vehicle chassis, and wherein the seat base is arranged between the row of seats and the vehicle chassis. Appropriate attachment points or anchor points can be provided on the vehicle chassis for attaching the row of seats to the vehicle chassis. In particular, the seat belts of the row of seats are also mounted directly to the vehicle chassis.

[0023] In one embodiment, the seat base is connected to the vehicle chassis. This can be achieved, for example, using clamping elements or clips. A screw connection is also possible. Fastening elements for attaching the seat base to the vehicle chassis can be embedded in the plastic material of the seat base.

[0024] In one embodiment, the electrical and / or electronic component and / or the electrochemical energy storage device are connected to the vehicle chassis. Preferably, the electrical and / or electronic component and / or the electrochemical energy storage device are not permanently attached to the seat base. In particular, the seat base is placed over the electrical and / or electronic component and / or the electrochemical energy storage device mounted on the vehicle chassis.

[0025] In one embodiment, the seat arrangement includes a high-voltage energy storage device mounted on the vehicle chassis, with the seat base being arranged above the high-voltage energy storage device. In particular, the electrical and / or electronic component and / or the electrochemical energy storage device are positioned between the high-voltage energy storage device and the seat base.

[0026] Another aspect of the invention relates to a motor vehicle with such a seating arrangement.

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

[0028] The invention also includes further developments of the motor vehicle according to the invention, which have features as already described in connection with the further developments of the seating arrangement according to the invention. For this reason, the corresponding further developments of the motor vehicle according to the invention are not described again here.

[0029] The invention also includes combinations of the features of the described embodiments.

[0030] The exemplary embodiments of the invention are described below. This includes: Fig. 1 a schematic side view of an embodiment of a motor vehicle; Fig. 2 a schematic underside view of a seat base for the motor vehicle according to Fig. 1; and Fig. 3 a schematic side view of a seating arrangement for the motor vehicle according to Fig. 1.

[0031] The embodiments described below are preferred embodiments of the invention. In these embodiments, the described components each represent individual features of the invention that can be considered independently of one another. Each of these features further develops the invention independently and can therefore be considered part of the invention individually or in a combination other than that shown. Furthermore, the described embodiments can also be supplemented by other features of the invention already described.

[0032] In the figures, functionally identical elements are each provided with the same reference symbols.

[0033] In Fig. Figure 1 shows a motor vehicle. 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 powered by an internal combustion engine. The motor vehicle 1 can move in a direction of travel 2. The motor vehicle 1 has a driver's seat 3 and a passenger seat (not shown).

[0034] Furthermore, the motor vehicle 1 has a seating arrangement 4. The seating arrangement 4 includes a row of seats 5 arranged behind the driver's seat 3. For example, three passengers can sit in the row of seats 5. The row of seats 5 is a second row or rear row of seats in the motor vehicle 1. The row of seats 5 has a one-piece or multi-piece seat cushion 6 and a one-piece or multi-piece backrest 7. In addition to the row of seats 5, the seating arrangement 4 includes a motor vehicle chassis 8, which is located in the Fig. 1 is only shown in a very highly schematic way.

[0035] The seating arrangement 4 further comprises a seat base 9 arranged between the vehicle chassis 8 and the seat row 5, in particular the seat cushion 6, which supports the seat row 5. The seat base 9 is made of a plastic material. The plastic material is foamed or expanded. For example, expanded polypropylene (EPP) can be used as a suitable plastic material. However, any other plastic material can also be used.

[0036] The seat base 9 is connected to the vehicle chassis 8. Suitable snap-fit ​​or latching connections may be provided for this purpose. A screw connection between the seat base 9 and the vehicle chassis 8 is also possible. The seat base 9 may have fastening elements embedded in the plastic material.

[0037] The seat base 9 supports the weight of the seat cushion 6 and the weight of any passengers seated on the seat cushion 6. Both the seat row 5 itself and the seat belts of the seat row 5 are directly connected to the vehicle chassis 8, so that, for example, when the vehicle 1 brakes, forces acting on the seat belts securing passengers in the seat row 5 are not transmitted to the seat base 9, but rather to the vehicle chassis 8. Appropriate anchor points or attachment points are provided to fasten the seat row 5 and the seat belts to the vehicle chassis 8.

[0038] The seat base 9 can have a support structure, in particular a supporting wire structure or a supporting wire frame. This support structure can be made of a metallic material. However, the support structure is designed in such a way that it does not affect radio waves or only does so minimally. For this purpose, for example, wires of the support structure can be positioned at a suitable distance from each other. Furthermore, for example, fastening elements for attaching the seat base 9 to the vehicle chassis 8 can be embedded in the plastic material.

[0039] A high-voltage energy storage device 10 is also mounted on the vehicle chassis 8. The high-voltage energy storage device 10 is oriented in the direction of Fig. 1 is placed below the seat base 9. The seat base 9 is thus located between the seat row 5 and the high-voltage energy storage unit 10.

[0040] In Fig. 2 is a schematic underside view of the seat base according to view II of the Fig. 1 shown. In Fig. Figure 3 shows a schematic side view of the seating arrangement 4. The following refers to the Fig. 2 and Fig. 3 referenced simultaneously.

[0041] As the Fig. Figure 3 shows that the seat base 9 is wedge-shaped in side view. The seat assembly 4 comprises, in addition to the vehicle chassis 8 and the seat base 9, at least one electrical and / or electronic component 11, 12 arranged within 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. Because the seat base 9 is made of a plastic material, it can be ensured that the seat base 9 does not undesirably shield the second electrical and / or electronic component 12 in the form of a communication module. In particular, the seat base 9 does not shield radio waves.This can also be achieved by designing the aforementioned support structure in such a way that it does not shield radio waves. If the vehicle 1 is an internal combustion engine vehicle, any other components of the vehicle 1 can be installed in the seat base 9.

[0042] 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 storage device 13 located within the seat base 9. The electrochemical energy storage device 13 is preferably a low-voltage battery. Both the electrical and / or electronic components 11, 12 and the electrochemical energy storage device 13 are completely located within the seat base 9.

[0043] The electrical and / or electronic components 11, 12 act as a heat source and thus emit heat, whereas the electrochemical energy storage device 13 is heat-sensitive. However, with the aid of the seat base 9, the electrical and / or electronic components 11, 12 and the electrochemical energy storage device 13 can be thermally separated from each other in such a way that the electrical and / or electronic components 11, 12 can transfer no or only reduced heat to the electrochemical energy storage device 13.

[0044] In particular, the seat base 9 has a different orientation. Fig.The seat base 9 has a first receiving area 14, open at the bottom, for receiving the electrical and / or electronic components 11, 12. The first receiving area 14 is, for example, a recess or cutout provided in the seat base 9. Furthermore, the seat base 9 has a second receiving area 15 for receiving the electrochemical energy storage device 13. The second receiving area 15 is also a recess or cutout provided in the seat base 9.

[0045] A wall section 16, also made of the same plastic material as the seat base 9, is provided between the first receiving area 14 and the second receiving area 15. The wall section 16 is part of the seat base 9. The wall section 16 allows the first receiving area 14 to be thermally separated from the second receiving area 15. This makes it possible to thermally isolate the electrical and / or electronic components 11, 12 and the electrochemical energy storage device 13 from each other.

[0046] To enable an electrical connection between the electrical and / or electronic components 11, 12 and the electrochemical energy storage device 13, the wall section 16 can have an opening 17 through which a conductor 18 leading from the electrical and / or electronic components 11, 12 to the electrochemical energy storage device 13 is routed. The opening 17 can be a bore provided in the wall section 16. Alternatively, the opening 17 can also be a cutout provided in the wall section 16. After the conductor 18 has passed through the opening 17, it can be closed, for example, with the aid of a thermally insulating material.

[0047] The electrical and / or electronic components 11, 12 and / or the electrochemical energy storage device 13 are preferably rigidly connected to the vehicle chassis 8 and not rigidly connected to the seat base 9. Alternatively, however, it is also possible that the electrical and / or electronic components 11, 12 and / or the electrochemical energy storage device 13 are connected to the seat base 9.

[0048] The first recording area 14 can be equipped with a fan 19 for ventilation. For example, the fan 19 can supply fresh air to the first recording area 14. Alternatively, the fan 19 can be used to extract heated air from the first recording area 14. The fan 19 is optional. A similar fan 19 can also be equipped with the second recording area 15.

[0049] Furthermore, the seat base 9 has a cable duct 20 that leads from the first receiving area 14 to the area surrounding the seat base 9. Cables 21 leading to and / or from the electrical and / or electronic components 11, 12 can pass through the cable duct 20. A similar cable duct 20 can also be associated with the second receiving area 15. REFERENCE MARK LIST: 1 motor vehicle 2. Direction of travel 3 Driver's seat 4 Seating arrangement 5 rows of seats 6 seat cushions 7 Backrest 8 motor vehicle chassis 9 Seat base 10 high-voltage energy storage systems 11 Component 12 components 13 Energy storage 14 Recording area 15 Recording area 16 wall section 17 Breakthrough 18 Management 19 fans 20 cable ducts 21 Management QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 11 2008 003 874 B4

[0003] GB 2574788 A

[0004] DE 10 2008 022 772 A1

[0005]

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