DE102022103661A1 - Fastening socket for fastening an accumulator housing to a motor vehicle body and arrangement of a fastening bush for fastening an accumulator housing to a motor vehicle body - Google Patents

Abstract

The invention relates to a fastening socket (1) for fastening a storage housing (2) of an energy storage device to a lateral longitudinal member (3) of a body (4) of an electrically driven motor vehicle, with a base part (11) and with a base part (11) protruding Socket part (12) into which a screw element (13) for fixing the storage housing (2) can be screwed, with a connecting part (14) which is designed in one piece with the base part (11) and is arranged at an angle (15) to the Base part (11) extends and via which the fastening socket (1) can be connected to an inner sheet metal part (16) of the lateral longitudinal member (3).

Description

The invention relates to a fastening socket for fastening a storage housing of an energy storage device to a side longitudinal member of a body of an electrically driven motor vehicle according to the preamble of patent claim 1. The invention also relates to an arrangement of at least one fastening socket for fastening a storage housing of an energy storage device to a lateral longitudinal member of a body an electrically powered motor vehicle. According to the preamble of claim 8.

The DE 10 2018 133 049 A1 discloses a side sill for a motor vehicle, with a side sill inner part assigned to a floor assembly, with a bottom chord and with a side sill outer part, through which a cavity of the side sill is delimited, in which a reinforcement part is arranged, which is attached to the side sill inner part. The side sill inner part and the lower chord are designed as separate components which are at least indirectly connected to one another along a flange connection running in the longitudinal direction of the side sill.

The object of the invention is to create a fastening socket for fastening a storage housing of an energy storage device to a side longitudinal member of a body of an electrically driven motor vehicle and an arrangement of at least one fastening socket for fastening a storage housing of an energy storage device to a lateral longitudinal member of a body of an electrically driven motor vehicle, so that the Storage housing can be attached to the lateral longitudinal member particularly safely and with particularly little effort.

This object is achieved according to the invention by a fastening socket for fastening a storage housing of an energy store to a side longitudinal member of a body of an electrically driven motor vehicle with the features of patent claim 1 and by an arrangement of at least one fastening socket for fastening a storage housing of an energy store to a lateral longitudinal member of a body of an electrically drivable motor vehicle with the features of claim 8 solved. Advantageous configurations of the invention are the subject matter of the dependent patent claims and the description.

A first aspect of the invention relates to a fastening socket for fastening a storage housing of an energy storage device, in particular an electrical energy storage device, to a side longitudinal member of a body of an electrically driven motor vehicle. The motor vehicle is preferably designed as a passenger car. Alternatively, the motor vehicle can be designed as a utility vehicle or as a truck.

The motor vehicle has at least one electrical machine, by means of which the motor vehicle can be driven electrically, in particular purely electrically. The motor vehicle is preferably designed as a battery-electric vehicle, in particular a purely battery-electric vehicle, or as a hybrid vehicle. The electrical machine for driving the motor vehicle can be supplied with electrical energy by means of the energy store. The energy store is preferably designed as a battery or as an accumulator.

In order to be able to achieve particularly high electrical power for electrical, in particular purely electrical, driving of the motor vehicle, the energy store can have an electrical voltage, in particular an electrical operating or nominal voltage, which is preferably greater than 50 volts, in particular more than 60 volts and preferably several hundred volts. Accordingly, the energy store is preferably designed as a high-voltage component. The energy store can thus be referred to in particular as a high-voltage store or be designed as a high-voltage store.

The accumulator housing can be understood in particular as a housing element of the energy accumulator. For example, the storage housing delimits or forms a receiving area in which the energy storage device is arranged or received. This means that storage elements of the energy store are at least predominantly, in particular completely, covered by the storage housing or surrounded by the storage housing. The memory element can be memory cells, for example.

The lateral longitudinal member preferably extends, in particular at least essentially, in the longitudinal direction of the motor vehicle. This means that a longitudinal extension direction of the side member runs along the vehicle longitudinal direction of the motor vehicle. The side member is preferably arranged in a lateral area in relation to a vehicle transverse direction of the motor vehicle. This means that the side member is spaced apart from a longitudinal axis of the motor vehicle running in the longitudinal direction of the vehicle. The longitudinal axis can be understood in particular as a central axis. For example, the lateral longitudinal member is part of a sill, in particular side skirts, the body of the motor vehicle. This means that the sill, in particular the side sill, can include the side member. The body can be understood in particular as a self-supporting body.

The mounting socket comprises a base part and a socket part protruding from the base part. The fact that the socket part protrudes from the base part can in particular be understood to mean that an axial direction of the socket part runs obliquely or perpendicularly to a longitudinal direction and/or a transverse direction of extension of the base part. The socket part thus protrudes beyond the base part, in particular in the vertical direction of the vehicle.

The socket part and the base part are preferably designed in one piece. This can in particular be understood to mean that the socket part and the base part are formed together in one piece. This means that the socket part and the base part are not components that are formed separately from one another and are connected to one another.

A screw element for fixing the accumulator housing can be screwed or screwed into the socket part. In other words, the socket part has an internal thread, in particular on an inner lateral surface, into which the screw element having an external thread can be screwed or screwed, as a result of which the accumulator housing can be or is fastened, in particular via the fastening socket, via a screw connection. For example, the socket part has a receiving space formed or delimited by a wall of the socket part, in which the screw element for screwing into the socket part, in particular into the internal thread, can be received or arranged.

In order to be able to fasten the accumulator housing to the lateral longitudinal member particularly securely and with particularly little effort by means of the fastening socket, it is provided according to the invention that a connecting part designed in one piece with the base part is arranged on the base part. In other words, the fastening socket comprises the base part and the connection part, the base part and the connection part being formed together in one piece. In other words, the connection part adjoins the base part, in particular directly, in one piece with the base part. This means that the base part and the connecting part are not components that are formed separately from one another and are connected to one another.

Provision is preferably made for the fastening socket to be designed, in particular completely, in one piece or in one piece. This means that the fastening socket is not formed from components which are formed separately from one another and are connected to one another.

Due to the fact that the base part and the connecting part are arranged in one piece with one another, and in particular the fastening bushing is designed in one piece, the accumulator housing can be fastened to the accumulator housing with particularly little effort via the fastening bushing. This means that manufacturing costs for the motor vehicle, in particular assembly costs, can be kept particularly low. The assembly effort can be understood in particular as an assembly effort for fastening the accumulator housing to the lateral longitudinal member. For example, it is possible to dispense with a particularly complex production assembly process consisting of a sheet metal holder and a bushing. This means that the connection part does not have to be fastened or mounted on the base part or on the socket part. Furthermore, as a result, the costs and weight of the fastening socket can be kept particularly low. In addition, it can be provided that the base part does not have to be fastened or mounted on the socket part. The fastening socket, which is in particular designed in one piece, can be transported with particularly little effort to an assembly location for fastening to the lateral longitudinal member. In this way, particularly easy handling of the fastening socket can be achieved, particularly in body construction. As a result, for example, an automated installation of the fastening socket on the body is possible with particularly little effort. For example, the fastening socket can be transported or made available as bulk goods in a transport container. As a result, the fastening bushing can be transported, in particular from the supplier, to a place of manufacture of the motor vehicle, particularly advantageously and particularly with little effort. For example, in the case of a conventional fastening socket, in which the base part is not formed in one piece with the connecting part or the fastening socket is formed in several parts, it may be necessary to stack an assembly consisting of the sheet metal holder and the socket in a transport container, in particular in a lattice box, in a particularly complex manner . This particularly complex stacking can be implemented, for example, by means of intermediate layers. This may be necessary, for example, to avoid a risk of bending the conventional mounting bush. In contrast, in the case of the fastening socket according to the invention, this is due to its geometry or as a result of the base part being formed in one piece with the connecting part, there is no risk of bending. The risk of bending can thus be kept particularly low with little effort.

Due to the fact that the base part and the connecting part or the fastening socket are designed in one piece, the fastening socket can also be used as an identical part in the motor vehicle with particularly little effort. This means that a number of identically designed fastening sockets can be used in the motor vehicle to fasten the accumulator housing to the side longitudinal member of the body of the electrically driven motor vehicle. As a result, the manufacturing complexity of the motor vehicle can be kept particularly low. For example, this means that no different parts can be required for fastening the accumulator housing on a left-hand side and a right-hand side of the motor vehicle. For example, no socket packs, in particular no socket packs, in particular one, two or three socket packs, may be required. As a result, the accumulator housing can be attached to the lateral longitudinal member with particularly little effort.

In addition, it is provided that the connecting part extends at an angle, in particular at a right angle, to the base part. In other words, the connection part and the base part are arranged obliquely or perpendicular to each other. For example, the base part extends in a first plane and the connecting part extends in a second plane, the planes running obliquely or perpendicularly to one another. This means that the planes are arranged relative to one another to form the angle, in particular the right angle. Furthermore, it is provided that the fastening socket can be connected or is connected to an inner sheet metal part of the lateral longitudinal member, in particular in a materially bonded manner, via the connecting part. In other words, in the fully manufactured state of the motor vehicle, the fastening bushing is fastened or held on the inner sheet metal part of the side longitudinal member, in particular in a materially bonded manner, for example by means of welding. As a result, the accumulator housing can be attached particularly securely to the lateral longitudinal member. This means that, for example, the strength and/or rigidity of the connection can be particularly increased. In particular because the connecting part extends at an angle to the base part, the rigidity of the fastening socket can be particularly increased, for example. Furthermore, a particularly advantageous supporting effect of the fastening socket on the side member can be brought about.

In a further embodiment, it is provided that the fastening socket, in particular in its intended installation position in the motor vehicle, via the connecting part in the transverse direction of the vehicle, in particular inward, on the inner sheet metal part of the side longitudinal member and/or via the base part in the vertical direction of the motor vehicle, in particular towards below, on a lower sheet metal part of the side member, in particular directly, can be supported or is supported. In other words, the connecting part is in the transverse direction of the vehicle, in particular inwards, in particular directly on the inner sheet metal part of the lateral longitudinal member. Alternatively or additionally, the base part rests in the vertical direction of the vehicle, in particular downwards, on the lower part of the sheet metal part of the side member, in particular directly. As a result, the fastening socket can be held particularly securely on the longitudinal member, as a result of which the accumulator housing can be particularly securely fastened to the lateral longitudinal member by means of the fastening socket. In particular, a supporting effect can be brought about in two different directions, as a result of which the accumulator housing can be held particularly securely on the lateral longitudinal member.

It is preferably provided that the fastening socket can be fastened or is fastened via the base part to the lower sheet metal part of the side member, in particular in a materially bonded manner, for example by means of welding.

The inner panel may be formed separately from the lower panel, or the panels may be integrally formed together. The inner sheet metal part is preferably arranged further inwards than the lower sheet metal part, at least in some areas in the vehicle transverse direction of the motor vehicle. The lower sheet metal part is preferably arranged at least in regions below the inner sheet metal part or further below than the upper sheet metal part in the vehicle vertical direction of the motor vehicle.

In a further embodiment, it is provided that the socket part has an opening at one end for receiving the screw element and is closed at the other end by a base part of the socket part. In other words, the socket part is designed as a blind hole.

This can be understood to mean the following in particular: The receiving space is delimited in the radial direction of the socket part by a wall, in particular the inner lateral surface, of the socket part. In the axial direction of the socket part, the receiving area is delimited at one end by the opening and at the other end by the bottom part of the socket part. The screw can go through the opening element to be passed through. The socket part or the receiving space is thus designed to be open or open at one end in the axial direction of the socket part. The base part is designed as a wall area of the socket part, as a result of which the socket part or the receiving space is closed, in particular completely, by the base part in the axial direction of the socket part. As a result, the entry of moisture into the socket part can be avoided in a particularly reliable manner or kept to a particularly low level. As a result, corrosion of the fastening socket or the screw connection can be avoided in a particularly reliable manner or kept to a particularly low level. As a result, the service life of the fastening socket or the fastening of the accumulator housing to the longitudinal member can be particularly increased.

The socket part is preferably designed in one piece. This means that the wall, in particular the inner lateral surface, and the bottom part are formed together in one piece or in one piece. Thus, the base part is formed in one piece with the wall of the socket part.

Provision is preferably made for the fastening bushing to be formed from sheet metal formed by means of deep drawing, in particular tube drawing. In other words, the fastening socket is produced, in particular exclusively, by means of deep drawing, in particular tube drawing. As a result, the strength of the fastening socket can be particularly increased. For example, work hardening of the sheet metal or the fastening sleeve can be provided during deep drawing, in particular during tube drawing, whereby the strength, in particular fatigue strength, of the fastening sleeve can be particularly increased. Furthermore, deep drawing, in particular tube drawing, can be used to produce a particularly complex component geometry of the fastening socket with particularly little effort and/or with particular precision. The fastening socket produced by means of tube drawing can in particular be referred to as a tube part. Thus, the fastening socket can be designed in particular as a tube part.

In a further embodiment, it is provided that the socket part and the base part are connected to one another in one piece, in particular directly, via a transition region which has a greater wall thickness than the base part and the socket part, and in particular the connecting part. In other words, the transition part that is designed in one piece with this, in particular directly, is arranged on the socket part, on which the base part that is designed in one piece with this is arranged, in particular directly, with a wall thickness, in particular a wall thickness of the formed sheet metal, being greater in the transition region or is thicker than in the base part and the beech part, and in particular the connecting part. In other words, in the transition region, a thickness of the formed metal sheet, referred to in particular as sheet metal thickness, is thicker than in the base part and the socket part, and in particular than in the connecting part. This means that in the transition area, in particular in relation to the base part and the socket part, a particularly local thickened material is provided, with the socket part and the base part, and in particular the connecting part, being free of the particularly local thickened material. As a result, the strength, in particular operational strength, of the fastening socket can be particularly increased. Furthermore, the material thickening can counteract an over-elastic tightening torque when tightening or screwing in the screw element, as a result of which, for example, a particularly elastic and/or plastic deformation of the fastening bushing when tightening or screwing in the screw element can be avoided or reduced. The local thickening of the material can be realized with particularly little effort and/or particularly precisely by producing the fastening socket by means of tube drawing.

The wall thickness can be understood in particular as a thickness of the fastening socket, in particular of the sheet metal, with the thickness extending obliquely or perpendicularly to the longitudinal extent and to the transverse extent of the fastening socket.

In a further embodiment, at least one kink is provided, which is designed to relatively deform the socket part and the base part as a result of plastic deformation about a kink axis running through the kink, in particular in the longitudinal direction of the side member, when the socket part and/or the base part is subjected to a force caused by an accident to pivot to the connecting part or to the longitudinal member. In other words, the fastening socket has at least one buckling point, by means of which or at which the socket part and the base part can be rotated about the buckling axis relative to the connecting part or the longitudinal member as a result of displacement of the socket part and/or the base part caused by an accident due to plastic deformation. In other words, the fastening socket is designed in such a way that it can be around the bending axis, in particular in a targeted manner, bends or bends. As a result, an intrusion of the fastening socket in the vehicle transverse direction inwards and thus in the direction of the accumulator housing or the energy accumulator can be kept particularly low or avoided in the event of an accident. As a result, the electrical energy store can be protected particularly well in the event of an accident. The bending axis can in particular be referred to as a pivot axis or axis of rotation.

The force caused by the accident can in particular be understood to mean a force or a mechanical load which results from the accident involving the motor vehicle or is caused, in particular directly, by the accident involving the motor vehicle.

In a further embodiment it is provided that a through opening for receiving an assembly aid is arranged in the base part. In other words, the base part has the through-opening through which the assembly aid can be guided. As a result, the fastening socket can be mounted on the side member with particularly little effort. For example, twisting of the fastening socket, in particular of the base part, relative to the longitudinal beam can be avoided by means of the assembly aid guided through the through-opening. As a result, during assembly, for example, the mounting bushing can be arranged on the side member and particularly securely fixed or held for the purpose of particularly material-locking connection to the side member and secured against, in particular, unwanted rotation of the mounting bushing relative to the side member. For example, the assembly aid is designed as a receiving mandrel.

A second aspect of the invention relates to an arrangement of at least one fastening socket for fastening a storage housing of an energy storage device, in particular an electrical energy storage device, to a side longitudinal member of a body of an electrically driven motor vehicle. Advantages and advantageous configurations of the first aspect of the invention are to be regarded as advantages and advantageous configurations of the second aspect of the invention and vice versa.

The fastening socket is fastened, in particular directly, to a lower sheet metal part of the side longitudinal member by means of a base part of the fastening socket. A screw element, via which the accumulator housing is fixed, is screwed into a socket part of the fastening socket which protrudes, in particular directly, from the base part. The accumulator housing is thus fastened or screwed to the side member via the fastening socket, in particular laterally.

In order to be able to fasten the accumulator housing to the lateral longitudinal member with particularly little effort and security, the invention provides that a connecting part which is designed in one piece with the base part is arranged on the base part, which extends at an angle to the base part and over which the fastening socket has an inner Sheet metal part of the lateral longitudinal member, in particular directly connected.

Provision is preferably made for the accumulator housing, the socket part and the lower sheet metal part of the longitudinal member to be screwed directly to one another by means of the screw element. In other words, a housing element of the accumulator housing and the lower sheet metal part of the longitudinal member are arranged in the axial direction of the screw element between the base part and a screw head of the screw, whereby the lower sheet metal part of the longitudinal member, the accumulator housing and the base part are connected by means of a screw connection effected by the screw element, in particular directly connected to each other. This means that the housing element, the lower sheet metal part of the side member and the base part are non-positively connected to one another by the screw element or the screw connection, in particular directly. As a result, the accumulator housing can be attached particularly securely or particularly firmly to the side member or the body.

In a further embodiment, at least one second fastening bushing is provided, which is formed separately from the fastening bushing and is fastened, in particular cohesively, to the lower sheet metal part of the lateral longitudinal member, in particular directly, by means of a base part of the second fastening bushing. A second screw element, which is formed separately from the screw element and via which the accumulator housing is fixed, is screwed into a socket part of the second fastening socket that protrudes, in particular directly, from the base part of the second fastening socket.

In order to be able to fasten the accumulator housing to the lateral longitudinal member with particularly little effort and security, a connecting part of the second fastening bushing which is designed in one piece with the base part of the second fastening bushing is arranged on the base part of the second fastening bushing and extends at a second angle to the base part of the second fastening bushing. The second angle corresponds to before preferably the angle referred to in particular as the first angle, in which the connecting part of the first fastening bush extends to the base part of the first fastening bush. The second fastening bush is connected, in particular cohesively, to the inner sheet metal part of the side longitudinal member, in particular directly, via the connecting part of the second fastening bush. The accumulator housing is thus fastened to the lateral longitudinal member both via the fastening bushing, which is referred to in particular as the first fastening bushing, and via the second fastening bushing. As a result, the accumulator housing can be held particularly securely on the lateral longitudinal member.

Provision is preferably made for the fastening bushing to be designed as identical parts. In other words, the fastening sockets are structurally identical or identical.

This can be understood in particular as follows: The second fastening socket has a base part, referred to in particular as the second socket part, a socket part, referred to in particular as the second socket part, and a connection part, referred to in particular as the second connecting part. In this case, the base part of the second fastening socket and the base part of the first fastening socket are each designed to be structurally identical or identical. The bushing part of the second fastening bushing and the bushing part of the first fastening bushing are constructed in the same way or identically. The connecting part of the second fastening socket and the connecting part of the first fastening socket are constructed in the same way or identically. As a result, manufacturing costs, in particular assembly costs, of the motor vehicle can be kept particularly low. For example, assembly, which is referred to in particular as assembly production, can be carried out with particularly little effort through the use of identical parts, in particular compared to a conventional fastening concept in which no identical parts are provided. For example, the automobile in its fully manufactured condition may include 14 of the mounting bushings. This means that the accumulator housing is fastened or fixed to the side longitudinal member of the body by means of the fastening sockets.

Further features of the invention result from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description and the features and combinations of features mentioned below in the description of the figures and/or shown alone in the figures can be used not only in the combination specified in each case, but also in other combinations or on their own.

• 1 eine schematische Perspektivansicht einer erfindungsgemäßen Befestigungsbuchse; und
• 2 eine schematische Teilschnittansicht einer erfindungsgemäßen Anordnung einer Befestigungsbuchse zur Befestigung eines Speichergehäuses eines Energiespeichers an einem seitlichen Längsträger einer Karosserie eines elektrisch antreibbaren Kraftwagens; und
• 3 eine schematische Detailansicht der Anordnung aus 2; und
• 4 eine schematische Teilschnittansicht einer erfindungsgemäßen Befestigungsbuchse und zweier Montagehilfsmittel; und
• 5 eine schematische Perspektivansicht einer erfindungsgemäßen Befestigungsbuchse und eines seitlichen Längsträgers; und
• 6 eine schematische Perspektivansicht mehrerer erfindungsgemäßer Befestigungsbuchsen und eines seitlichen Längsträgers; und
• 7 eine schematische Perspektivansicht einer Karosserie eines Kraftwagens mit mehreren erfindungsgemäßen Befestigungsbuchsen; und
• 8 eine perspektivische Teilansicht einer Karosserie eines Kraftwagens mit mehreren erfindungsgemäßen Befestigungsbuchsen; und
• 9 eine schematische Unteransicht einer Karosserie eines Kraftwagens mit mehreren erfindungsgemäßen Befestigungsbuchsen.

The invention will now be explained in more detail using a preferred exemplary embodiment and with reference to the drawings. Show it:

• 1 a schematic perspective view of a mounting socket according to the invention; and
• 2 a schematic partial sectional view of an arrangement according to the invention of a fastening socket for fastening a storage housing of an energy storage device to a side longitudinal member of a body of an electrically driven motor vehicle; and
• 3 a schematic detailed view of the arrangement 2 ; and
• 4 a schematic partial sectional view of a mounting socket according to the invention and two assembly aids; and
• 5 a schematic perspective view of a mounting bushing according to the invention and a side sill; and
• 6 a schematic perspective view of several mounting sockets according to the invention and a lateral longitudinal member; and
• 7 a schematic perspective view of a body of a motor vehicle with several mounting sockets according to the invention; and
• 8th a perspective partial view of a body of a motor vehicle with several mounting sockets according to the invention; and
• 9 a schematic bottom view of a body of a motor vehicle with several mounting sockets according to the invention.

Elements that are the same or have the same function are provided with the same reference symbols in the figures.

1 shows a schematic perspective view of a fastening socket 1 for fastening a storage housing 2 of an energy storage device on a side longitudinal member 3 of a body 4 of an electrically driven motor vehicle. 2 shows in a schematic partial sectional view an arrangement of the fastening socket 1 for fastening the storage housing 2 of the energy storage device to the side longitudinal member 3 of the body 4 of the electrically driven motor vehicle. Thus shows 2 a schematic part sectional view of the body 4, the accumulator housing 2 and the mounting socket 1.

in the in 1 and 2 In the exemplary embodiments shown, the side longitudinal member 3 is part of a side sill 5 of the body 4 . The side sill 5 has an inner sill part 6 and an outer sill part 7 . The inner sill part 6 can in particular be referred to as “inner sill” and the outer sill part 7 can be referred to in particular as “outer sill”. The outer sill part 7 is arranged further outwards in the vehicle transverse direction 8 of the motor vehicle than the inner sill part 6. The inner sill part 6 is supported on the lateral longitudinal member 3 in the vehicle transverse direction 8, in particular outwards, in particular directly. The outer sill part 7 is supported on the side longitudinal member 3 in the transverse direction 8 of the vehicle, in particular inwards. Preferably, the sill parts 6.7 are connected to the lateral longitudinal member 3, in particular directly. The body 4 has a side frame 9 which is preferably connected to the side longitudinal member 3, in particular directly. The side frame 9 is preferably designed as the outside or as the outer side surface of the body 4 in the transverse direction 8 of the vehicle. The accumulator housing 2 is arranged at least in regions below the lateral longitudinal member 3 in the vehicle vertical direction 10 of the motor vehicle.

3 shows a detail section A in a schematic partial sectional view, which is shown in 2 is sketched. The fastening socket has a base part 11 and a socket part 12 protruding from the base part 11 . The socket part 12 is preferably formed in one piece with the base part 11 . A screw element 13 for fixing the accumulator housing 2 can be screwed or screwed into the socket part 12 . The energy store or the store housing 2 is thus screwed to the side longitudinal member 3 via the fastening socket 1, in particular from below in the vertical direction 10 of the vehicle. The screw element 13 is preferably designed as a screw. For example, the screw is an M12 screw. For example, screw element 13 is screwed into socket part 12 with an over-elastic tightening torque of one hundred Newton meters, in particular one hundred Newton meters plus ninety percent.

In order to fasten the accumulator housing 2 particularly securely and with particularly little effort to the lateral longitudinal member 3 or the body 4 by means of the fastening socket 1, provision is made for a connecting part 14, which is designed in one piece with the latter, to be arranged on the base part 11, in particular directly, which at an angle 15 to the base part 11 extends. The fastening bushing 1 can be or is connected to an inner sheet metal part 16 of the side longitudinal member 3 via the connecting part 14 . Due to the one-piece design, an assembly of the base part 11 and the connecting part 14 or the fastening socket 1 can be dispensed with. As a result, the fastening socket 1 can be mounted on the body 4, in particular on the side longitudinal member 3, with particularly little effort. Thus, by means of the fastening bushing 1, for example, compared to a conventional fastening bushing, an assembly of a sheet metal holder and a bushing can be avoided.

The fastening socket 1 is fastened by means of the base part 11 to a lower sheet metal part 17 of the side longitudinal member 3, in particular directly. This means that the fastening socket 1 is connected to the side longitudinal member 3 both via the base part 11 and via the connecting part 14, in particular directly. This can in particular be referred to as a two-part connection of the fastening socket 1 to the side longitudinal member 3 . As a result, the accumulator housing 2 can be held particularly securely on the lateral longitudinal member 3 . For example, forces occurring in particular in the event of an accident of the motor vehicle can be introduced particularly well into the body 4 as a result. Furthermore, the operational strength of the fastening socket 1 or the fastening of the accumulator housing 2 to the lateral longitudinal member 3 can be particularly increased. Preferably, the accumulator housing 2, the socket part 12 and the lower sheet metal part 17 of the longitudinal member 3 are screwed together directly by means of the screw element 13.

The fastening socket 1 is preferably connected to the lower sheet metal part 17 via the base part 11 and/or to the inner sheet metal part 16 via the connecting part 14, in particular by means of welding. For example, the connecting part 14 is welded to the inner sheet metal part 16 of the side longitudinal member 3 at at least one first welding point 18 . For example, the base part 11 is welded to the lower sheet metal part 17 of the side longitudinal member 3 at at least one second welding point 19 , in particular at a distance from the first welding point 18 .

in the in 2 and 3 The exemplary embodiment shown is the fastening socket 1 via the connecting part 14 in the vehicle transverse direction 8, in particular inwards, on the inner sheet metal part 16 of the lateral longitudinal member 3 and via the base part 11 in the vehicle vertical direction 10, in particular below, on the lower sheet metal part 17 of the lateral longitudinal member 3, in particular directly, can be supported or supported, in particular attached. This means that the base part 11 has at least one support surface 17a, via which the base part 11 is supported on the lower sheet metal part 17 of the side longitudinal member 3, in particular directly, in the vertical direction 10 of the vehicle. The connecting part 14 has a support surface 16a, via which the connecting part 14 is supported, in particular directly, on the inner sheet metal part 16 of the side longitudinal member 3 in the transverse direction 8 of the vehicle.

In a further embodiment, it is provided that the socket part 12 has an opening 20 for receiving the screw element 13 at one end and is closed by a base part 21 of the socket part 12 at the other end. As a result, the corrosion resistance of the fastening socket 1, in particular the fastening of the accumulator housing 2 to the lateral longitudinal member 3, can be particularly increased. This is the case in particular because the ingress of liquid, for example water, into the socket part 12 can be avoided or kept particularly low. The base part 21 is formed in one piece with a wall 22 of the socket part 12, the wall 22 at least predominantly, in particular completely, delimiting a receiving space 23 for receiving the screw element 13 in the socket part 12 in the radial direction 24 of the socket part 12. The base part 21 delimits the receiving space 23 in the axial direction 25 of the socket part 12, in particular in the vehicle vertical direction 8 upwards. The axial direction 25 of the socket part 12 preferably runs parallel to the vertical direction 10 of the vehicle.

In a further embodiment, it is provided that the fastening socket 1 is formed from a metal sheet 26 formed by means of deep drawing, in particular tube drawing. As a result, for example, a particularly high level of strength of the fastening socket 1 can be achieved. Furthermore, the fastening socket 1 can be manufactured with particularly little effort and with particular precision. For example, the sheet metal is electrolytically galvanized thin sheet metal. For example, the sheet metal 26 is formed from steel, in particular from CR3-EG50/50-U. For example, the sheet metal 26 is 2.5 millimeters thick, in particular in the formed state. To screw the screw element 13 into the socket part 12 with the overelastic tightening torque, it is advantageous if an internal thread formed by the socket part 12 has a particularly high strength, which can be brought about by strain hardening in the tube drawing manufacturing process.

In a further embodiment, it is provided that the socket part 12 and the socket part 11 are connected to one another in one piece via a transition part 27, which has a greater wall thickness 28 than the socket part 11 and the socket part 12, and in particular the connecting part 14. In other words, the Transition part 27, in particular the metal sheet 26 in the area of the transition part 27, has a first wall thickness 28, referred to in particular as the first wall thickness 28, the base part 11, in particular the metal sheet 26 in the area of the base part 11, has a second wall thickness 29, the socket part 12 , in particular the metal sheet 26 in the area of the socket part 12, has a third wall thickness 30 and the connecting part 14, in particular the metal sheet 26 in the area of the connecting part 14, has a fourth wall thickness 31. The first wall thickness 28 is larger or thicker than the second and the third wall thickness 29, 30, and in particular than the fourth wall thickness 31. As a result, the strength or rigidity of the fastening socket 1 can be particularly increased. As a result, for example, requirements for operational strength of the fastening socket 1 can be met in a particularly reliable manner.

4 1 shows the fastening socket 1 and two assembly aids 32, 33 in a schematic partial sectional view. The through-opening 34 is arranged in a partial area 35 of the base part 11, which is spaced apart from the support surface 17a in the vehicle vertical direction 10 of the motor vehicle. The second of the assembly aids 33 can be arranged or accommodated in the socket part 12 , in particular in the receiving space 23 . For example, the mounting bushing 1 is arranged on the lateral longitudinal member 3 for mounting. The support surface 17a preferably touches the lower sheet metal part 17 and the support surface 16a preferably touches the inner sheet metal part 16 directly. The first assembly aid 32 is guided through the through-opening 34 . The second assembly aid 33 is introduced into the socket part 12 , in particular the receiving space 23 . Subsequently, the fastening bushing 1 is connected to the lateral longitudinal member 3, in particular in a materially bonded manner, for example welded. The mounting bushing 1 can be secured by means of the assembly aids 32, 33 against, in particular unwanted, relative rotation of the mounting bushing 1 against the lateral longitudinal member 3. As a result, the fastening socket 1 can be positioned particularly precisely and particularly securely on the side longitudinal member 3 . Thus, for example, an assembly effort can be kept particularly low. Furthermore, a particularly precise connection between the mounting socket 1 and the side rail 3 can be realized. For example, the respective assembly aid 32, 33 is designed as a respective receiving mandrel.

5 shows the fastening bushing 1 and the lateral longitudinal member 3 in a schematic perspective view. In a further embodiment, the fastening bushing 1 has at least one kink point 36 which is designed to, when the bushing part 12 is subjected to a force 37 caused by an accident, the bushing part 12 and the base part 11, and in particular the transition part 27, as a result of plastic deformation, about a bending axis 38 running through the buckling point 36, in particular in a targeted manner, relative to the connecting part 14 or to the longitudinal beam 3. Panning is in 5 illustrated by an arrow 39. The accidental force 37 is in 4 illustrated and may be specifically referred to as first force 37 . Alternatively or additionally, it is provided that the buckling point 36 is designed to, when the base part 11 is subjected to an accident-related force 40, in particular referred to as a second force 40, to the socket part 12 and the base part 11 as a result of plastic deformation about the buckling axis 38, in particular in a targeted manner , relative to the connecting part 14 or the longitudinal member 3 to rotate. As a result, an accident-related displacement of the fastening socket 1, in particular in the event of a side crash, inwards in the transverse direction 8 of the vehicle can be kept particularly low. As a result, for example, an intrusion of the fastening socket 1 into the accumulator housing 2 or into the energy accumulator in the event of an accident can be avoided or kept to a particularly low level. As a result, the safety of the motor vehicle can be particularly increased. For example, as a result, crash requirements of the motor vehicle can be met in a particularly reliable manner.

For example, the kink 36 is designed as a material recess. in the in 5 shown embodiment, two of the material recesses are provided. The respective material recess can be understood in particular as a respective material recess. Thus, through the material cutout in the area of the buckling point 36 or in the area of the buckling axis 38, a targeted weakening of the component can be brought about so that the fastening socket 1 is buckled in the event of an accident, particularly in the worst case, and the support surface 17a in the vehicle vertical direction 10 upwards over the, in particular imaginary, Articulated axis 38 can deflect.

in the in 4 In the exemplary embodiment outlined, the first force 37 runs parallel to the transverse direction 8 of the vehicle. Alternatively, the first force 37 can run at an angle to the transverse direction 8 of the vehicle. in the in 4 The exemplary embodiment shown, the second force 41 runs obliquely to the vehicle transverse direction 8. Alternatively, the second force 41 can run parallel to the vehicle transverse direction 8.

For example, it is provided that the fastening bushing 1 has a particularly high rigidity or the highest possible rigidity in the transverse direction 8 of the vehicle. As a result, in the event of an accident, in particular in the event of a side crash, the intrusion of the fastening bushing 1 into the accumulator housing 2 or into the energy accumulator can be avoided or kept to a particularly low level.

This can be realized, for example, by a width extension 42 of the fastening socket 1, which is referred to in particular as the width.

in the in 5 In the exemplary embodiment shown, two collar parts 43 , 44 embodied in one piece with the base part 11 are arranged on the base part 11 and extend at an angle, in particular at a right angle, to the base part 11 . The collar parts 43, 44 can in particular be referred to as the first collar part 43 and the second collar part 44, respectively. On the base part, for example, a third collar part 45 designed in one piece with this and a fourth collar part 46 designed in one piece with the base part 11 are arranged, with the third and fourth collar parts 44, 45 being at a respective angle, in particular a respective right angle. extend to the base part 11. The respective collar part 43 to 46 can in particular be referred to as the respective collar stand-off. As a result, the rigidity of the fastening bushing 1 can be particularly increased. For example, the fastening socket 1 can be inserted into a production plant, in particular an assembly plant, in an automated manner in a particularly simple manner by means of the respective collar placement 43-46.

6 shows a schematic perspective view 3 of the fastening bushes 1, 1a, 1b and the longitudinal member 3, which are designed separately from one another. The fastening bushes 1, 1a, 1b are designed as identical parts. The mounting bushing 1 can in particular be referred to as the first mounting bushing 1 . A second of the mounting sockets 1a has a base part 11a, referred to in particular as the second socket part 11a, a socket part 12a, referred to in particular as the second socket part 12a, and a connection part 14a, referred to in particular as the second connection part 14a. The third fastening socket 1b has a socket part 11b, which is referred to in particular as the third socket part 11b, and a socket part which is referred to in particular as the third socket part 12b 12b and a connection part 14b, which is referred to in particular as the third connection part 14b. The base parts 11, 11a, 11b are structurally identical or identical. The socket parts 12, 12a, 12b are constructed in the same or identical manner. The connecting parts 14, 14a, 14b are structurally identical or identical. Thus, for example, the second fastening socket 1a is fastened to the lower sheet metal part 17 of the side longitudinal member 3 by means of its base part 11a, and a second screw element, which is designed separately from the screw element 13, is screwed into the socket part 12a of the second fastening socket, which protrudes from the base part 11a of the second fastening socket 1a , over which the storage case 2 is fixed. In order to be able to attach the accumulator housing to the lateral longitudinal member 3 particularly securely and with particularly little effort, the connecting part 14a of the second fastening bushing 1a, which is designed in one piece with the base part 11a of the second fastening bushing 1a, is arranged on the base part 11a of the second fastening bushing 1a, which is located at the angle 15 extends to the base part 11a of the second fastening bushing 1a and via which the second fastening bushing 1a is connected to the inner sheet metal part 16 of the side longitudinal member 3. This applies equivalently to the third fastening socket 1b, a third screw element which is formed separately from the screw elements and via which the accumulator housing 2 is fixed is screwed into the socket part 12b of the third fastening socket 1a. Due to the fact that the fastening sockets 1, 1a, 1b are designed as equal parts, the production costs, in particular the assembly costs, of the motor vehicle can be kept particularly low.

7 shows the body 4 of the motor vehicle in a schematic perspective view. 8th shows the body 4 in a schematic and perspective partial view. 9 shows the body 4 in a schematic view from below. For example, fourteen of the mounting bushings 1, 1a-m are attached to the body 4. In this case, seven of the fastening sockets 1, 1a-f are fastened to the lateral longitudinal member 3. The remaining seven fastening sockets 1g-m are fastened in a second lateral longitudinal member 3a which is formed separately from the lateral longitudinal member 3. In the exemplary embodiment, the side sill 3 is designed as a left side sill 3 and the second side sill 3a is embodied as a right side sill 3a. Thus, the lateral longitudinal member 3 is arranged on a first side of the body 4 in relation to the vehicle transverse direction 8 and the second lateral longitudinal member 3a is arranged in relation to the vehicle transverse direction 8 on a second side of the body. The mounting sockets 1, 1a-m are designed as identical parts.

For example, the second mounting aid 33 comprises a plurality of mounting mandrels in order to be able to position the fastening bushes 1, 1a-g, in particular the seven fastening bushes 1, 1a-f, precisely relative to one another on each side of the motor vehicle. As a result, manufacturing costs for the motor vehicle can be kept particularly low.

Reference List

1

mounting socket

1a

second mounting bush

1b

third mounting socket

1c

fourth mounting socket

1d

fifth mounting socket

1e

sixth mounting socket

1f

seventh mounting socket

1g

eighth mounting bush

1 hour

ninth mounting socket

1i

tenth mounting socket

1y

eleventh mounting socket

1k

twelfth mounting socket

11

thirteenth mounting socket

1m

fourteenth mounting socket

2

storage enclosure

3

side members

3a

second longitudinal member

4

body

5

side skirts

6

inner rocker panel

7

outer rocker panel

8th

vehicle transverse direction

9

side frames

10

vehicle elevation

11

base part

11 a

second base part

11b

third base part

12

socket part

12a

second socket part

12b

third socket part

13

screw element

14

connection part

14a

second connection part

14b

third connection part

15

angle

16

inner sheet metal part

16a

support surface

17

lower sheet metal part

17a

support surface

18

first spot weld

19

second spot weld

20

opening

21

bottom part

22

wall

23

recording room

24

radial direction

25

axial direction

26

sheet

27

transition part

28

first wall thickness

29

second wall thickness

30

third wall thickness

31

fourth wall thickness

32

first assembly tool

33

second assembly tool

34

passage opening

35

subarea

36

kink

37

first force

38

articulated axis

39

Arrow

41

second power

42

latitude

43

first collar part

44

second collar part

45

third part of the collar

46

fourth part of the collar

A

detail cutout

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• DE 102018133049 A1 [0002]

Claims (10)

Fastening socket (1) for fastening a storage housing (2) of an energy store to a lateral longitudinal member (3) of a body (4) of an electrically driven motor vehicle, with a base part (11) and with a socket part (12) protruding from the base part (11) into which a screw element (13) for fixing the storage housing (2) can be screwed, characterized in that on the base part (11) there is arranged a connecting part (14) which is designed in one piece with this and which is at an angle (15) to the base part (11) and via which the fastening socket (1) can be connected to an inner sheet metal part (16) of the side longitudinal member (3). Fastening socket (1) according to claim 1 , characterized in that the fastening socket (1) via the connecting part (14) in the vehicle transverse direction (8) on the inner sheet metal part (16) of the side longitudinal member (3) and/or via the base part (11) in the vehicle vertical direction (10) on a lower sheet metal part (17) of the longitudinal member (3) can be supported. Fastening socket (1) according to claim 1 or 2 , characterized in that the socket part (12) has an opening (20) for receiving the screw element (13) at one end and is closed at the other end by a bottom part (21) of the socket part (12). Fastening bush (1) according to one of the preceding claims, characterized in that the fastening bush (1) is formed from sheet metal (26) formed by deep-drawing. Fastening socket (1) according to one of the preceding claims, characterized in that the socket part (12) and the base part (11) are connected to one another in one piece via a transition part (27) which has a greater wall thickness (28) than the base part (11) and the socket part (12). Fastening bushing (1) according to one of the preceding claims, characterized by at least one kink (36) which is designed to break the bushing part when the bushing part (12) and/or the base part (11) is subjected to a force (37, 41) caused by an accident (12) and the base part (11) as a result of plastic deformation about a buckling axis (38) running through the buckling point (36) relative to the connecting part (14). Fastening socket (1) according to one of the preceding claims, characterized in that a through opening (34) for receiving an assembly aid (32) is arranged in the base part (11). Arrangement of at least one fastening socket (1) for fastening a storage housing (2) of an energy store to a lateral longitudinal member (3) of a body (4) of an electrically driven motor vehicle, in which the fastening socket (1) is attached to a lower sheet metal part by means of a base part (11). (17) of the lateral longitudinal member (3) and a screw element (13) is screwed into a socket part (12) protruding from the base part (11), via which the storage housing (2) is fixed, characterized in that on the base part (11) a connecting part (14) formed in one piece with this is arranged, which extends at an angle (15) to the base part (11) and via which the fastening socket (1) is connected to an inner sheet metal part (16) of the side longitudinal member (3) connected is. arrangement according to claim 8 , characterized in that the accumulator housing (2), the socket part (12) and the lower sheet metal part (17) of the longitudinal member (3) are screwed together directly by means of the screw element (13). arrangement according to claim 8 or 9 , characterized in that a second fastening bush (1a) formed separately from the fastening bush (1) is fastened to the lower sheet metal part (17) of the lateral longitudinal member (3) by means of a base part (11a) of the second fastening bush (1a) and in a from the base part (11a) of the second fastening socket (1a) protruding socket part (12a) of the second fastening socket (1a) a separate from the screw element (13), formed, second screw element is screwed, via which the memory housing (2) is fixed, and on the base part (11a) of the second fastening socket (1a) is arranged in one piece with the base part (11a) of the second fastening socket (1a) in the form of a connecting part (14a) of the second fastening socket (1a), which is at the angle (15) to the base part ( 11a) of the second fastening bushing (1a) and via which the second fastening bushing (1a) is connected to the inner sheet metal part (16) of the side longitudinal member (3), the fastening bushings (1, 1a) being designed as identical parts.

Images