DE102019128505A1 - Motor vehicle with a fixing device for a replaceable high-voltage battery - Google Patents

Abstract

Motor vehicle (1) with a fixing device (2) for a replaceable high-voltage battery (3), at least comprising an installation space (4) for the high-voltage battery (3) and a swivel device (5) with at least one swivel arm (6, 7, 8, 9) which is pivotable about an axis of rotation (10, 11, 12, 13) arranged on the motor vehicle (1) at least between a first position (14) and a second position (15); wherein in the first position (14) the swivel arm (6, 7, 8, 9) releases the installation space (4) for installing or removing the high-voltage battery (3), and in the second position (15) the high-voltage battery (3) through the at least one swivel arm (6, 7, 8, 9) is fixed in the installation space (4).

Description

The invention relates to a motor vehicle with a fixing device for a replaceable high-voltage battery. The motor vehicle is in particular an electrically driven motor vehicle. In particular, the motor vehicle has at least one traction drive that is supplied with electrical energy via the high-voltage battery.

Motor vehicles with an electric drive train, that is to say with a traction drive, have a battery system as an electrical energy store. It is known to connect the high-voltage battery to the high-voltage network in the motor vehicle via a high-voltage connection. If the high-voltage battery is to be used as part of a replacement concept, e.g. B. be replaced fully automatically, a simple mechanical connection of the high-voltage battery and an automated electrically conductive connection of the high-voltage contacts of the motor vehicle and high-voltage battery is required. Systems and components that are operated in motor vehicles above 25 volts or even above 30 volts alternating voltage (AC) or at least 60 volts direct voltage (DC) are referred to as high-voltage systems - consequently, electrical connections for such applications are used as high-voltage connections designated.

From the DE 10 2013 003 918 B3 a motor vehicle with an electric drive and a first high-voltage battery which is installed in the motor vehicle is known. A second high-voltage battery is provided, which can be temporarily mechanically and electrically coupled to the motor vehicle.

The DE 10 2012 205 414 B3 is aimed at an electrically powered vehicle. The vehicle has a device for releasing and fixing a traction battery.

From the DE 10 2009 019 185 A1 a changing device for rechargeable batteries in a battery changing station for motor vehicles is known.

It is the object of the present invention to at least partially solve the problems cited with reference to the prior art. In particular, a motor vehicle with a fixing device for a replaceable high-voltage battery is to be proposed, the fixing device also making it possible to change the high-voltage battery fully automatically.

A motor vehicle with the features according to patent claim 1 contributes to the solution of these objects. Advantageous further developments are the subject of the dependent claims. The features listed individually in the patent claims can be combined with one another in a technologically meaningful way and can be supplemented by explanatory facts from the description and / or details from the figures, with further design variants of the invention being shown.

A motor vehicle with a fixing device for a replaceable high-voltage battery is proposed. The motor vehicle comprises at least one installation space for the high-voltage battery as well as a swivel device with at least one swivel arm which can be swiveled about an axis of rotation arranged on the motor vehicle at least between a first position and a second position. In the first position, the first swivel arm releases the installation space for installing or removing the high-voltage battery, and in the second position the high-voltage battery is fixed or fixable in the installation space by the first swivel arm.

The pivoting device is arranged and fastened in particular on the motor vehicle. The pivoting device can be operated hydraulically and / or electrically and / or manually. In particular, the pivoting device can be actuated automatically.

The part of the motor vehicle that fixes the position of the high-voltage battery in the installation space is referred to here as the fixing device. The fixing device comprises in particular the at least one swivel arm and the components that are proposed below for fixing the high-voltage battery.

In particular, the installation space is arranged on an underside of the motor vehicle. The at least one swivel arm can be swiveled in a plane below the installation space.

The installation space can be arranged at any suitable point on the motor vehicle. The high-voltage battery can be arranged in any direction of movement in the installation space, e.g. B. translational, rotary or combined. The at least one swivel arm can also be swiveled in a plane that is oriented differently to the installation space.

However, it is preferred that the high-voltage battery is fed into a horizontally arranged motor vehicle from below, that is, against gravity. The installation space is therefore preferably accessible from below. The plane in which the at least one swivel arm can be pivoted is preferably arranged below the installation space and thus below the high-voltage battery arranged in the installation space.

In the second position, the at least one swivel arm is arranged so that the High-voltage battery is positively arranged in the installation space by the swivel arm. In the first position, the high-voltage battery can be removed from the installation space past the at least one swivel arm or can be arranged therein.

The first position and the second position are in particular separated from one another by an angular range of at least 10 angular degrees, preferably at least 45 angular degrees, particularly preferably at least 75 angular degrees. In particular, the angular range is between 10 and 170 angular degrees, preferably between 45 and 135 angular degrees, particularly preferably between 75 and 115 angular degrees. The first position is particularly preferably spaced apart from the second position by an angular range of 90 angular degrees.

In particular, the motor vehicle comprises a first locking system for mechanically fixing at least the second position of the at least one swivel arm.

In particular, the locking system is intended to prevent the at least one swivel arm from pivoting when the motor vehicle is in operation, that is to say with a built-in high-voltage battery. The locking system can in particular be actuated hydraulically and / or electrically and / or manually. In particular, the locking system can be actuated automatically.

In particular, the first locking system comprises a movable bolt which can be displaced with respect to the at least one swivel arm.

In particular, the bolt is arranged in the swivel arm and can be displaced translationally with respect to the swivel arm.

In particular, the bolt can interact with a bolt receptacle which is arranged in a swivel arm or on the motor vehicle and then not on the swivel arm. The bolt can in particular be pushed into the bolt receptacle so that pivoting of the pivot arm is then blocked.

In particular, the motor vehicle comprises, in addition to the first swivel arm, at least one second swivel arm which can be swiveled about a second axis of rotation arranged on the motor vehicle at least between a first position and a second position. The two swivel arms can be mutually fixed by the first locking system.

In particular, z. B. part of the locking system, e.g. B. a bolt, in the first pivot arm and another part of the locking system, e.g. B. a bolt seat, arranged in the second pivot arm. If both swivel arms are arranged in the second position, the bolt can be at least partially displaced into the bolt receptacle so that the bolt is arranged in both swivel arms. It is then no longer possible to pivot the swivel arms out of the second position.

In particular, the axes of rotation of different pivot arms are arranged parallel to one another. In particular, the axes of rotation each extend perpendicular to a longitudinal axis of the motor vehicle and in particular parallel to a yaw axis.

In particular, in addition to the first swivel arm and the second swivel arm, the motor vehicle comprises at least one third swivel arm with a third axis of rotation and a fourth swivel arm with a fourth axis of rotation and a second locking system. The third swivel arm and the fourth swivel arm can be mutually fixed by the second locking system.

In particular, the high-voltage battery has at least one first high-voltage connection and the motor vehicle has at least one second high-voltage connection. The high-voltage battery is electrically connected to the motor vehicle by making contact with the high-voltage connections. At least the first high-voltage connection is movably arranged on the high-voltage battery. In particular, the first high-voltage connection is (exclusively) movable in a translatory manner with respect to the high-voltage battery.

In particular, the first high-voltage connection can be actuated by the at least one swivel arm during the swiveling, starting from the first position towards the second position, so that contacting of the high-voltage connections is ensured in the second position. In particular, the first high-voltage connection can then be actuated by the swivel arm shortly before it has reached its second position, that is to say e.g. B. at most in the range of the last 10 angular degrees of pivoting.

In particular, the motor vehicle comprises at least one resetting device for the first high-voltage connection, which, when the at least one swivel arm is pivoted, moves the first high-voltage connection away from the second high-voltage connection and removes the contacting of the high-voltage connections. In particular, the reset device comprises, for. B. a spring mechanism which is in the second position in a tensioned state and in the first position of the pivot arm in a relaxed state.

In particular, the motor vehicle comprises at least one longitudinal axis and one side of the vehicle on each of the two sides of the longitudinal axis. The installation space is arranged between the sides of the vehicle. The first axis of rotation of the at least one first pivot arm is arranged between the installation space and one of the vehicle sides.

In particular, the installation space is located along the longitudinal axis between the axles of a motor vehicle. In particular, the swivel arm or the swivel arms are arranged between the installation space and the one side of the vehicle or in each case between the installation space and each side of the vehicle. In particular, the pivot arms are arranged in the area of the so-called rocker panels of a motor vehicle, which delimit an underside of the motor vehicle on each side of the vehicle. A rocker is in particular a part of a body of the motor vehicle.

In particular, the at least one swivel arm is arranged integrated in the rocker, so that at least part of the rocker, i.e. part of the body of the motor vehicle, is arranged between a floor on which the motor vehicle stands and the at least one swivel arm.

The use of indefinite articles (“a”, “an”, “an” and “an”), especially in the patent claims and the description reproducing them, is to be understood as such and not as a numerical word. The terms or components introduced in this way are therefore to be understood in such a way that they are present at least once and, in particular, can also be present several times.

As a precaution, it should be noted that the numerals used here (“first”, “second”, ...) primarily (only) serve to differentiate between several similar objects, sizes or processes, so in particular no dependency and / or sequence of these objects, sizes or prescribe processes to each other. Should a dependency and / or sequence be required, this is explicitly stated here or it is obvious to a person skilled in the art when studying the specifically described embodiment. If a component can appear several times (“at least one”), the description of one of these components can apply equally to all or part of the majority of these components, but this is not mandatory.

• 1: ein Kraftfahrzeug in einer Ansicht entlang einer Gierachse; und
• 2: das Kraftfahrzeug nach 1 in einer Seitenansicht.

The invention and the technical environment are explained in more detail below with reference to the accompanying figures. It should be pointed out that the invention is not intended to be restricted by the exemplary embodiments cited. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and to combine them with other components and findings from the present description. In particular, it should be pointed out that the figures and in particular the size relationships shown are only schematic. Show it:

• 1 : a motor vehicle in a view along a yaw axis; and
• 2 : the motor vehicle after 1 in a side view.

The 1 shows a motor vehicle 1 in a view along a yaw axis 30th . 2 shows the motor vehicle 1 to 1 in a side view. The 1 and 2 are described together below.

The car 1 has two axes 28 with two wheels each 27 on. The axes 28 are along the longitudinal axis 24 of the motor vehicle arranged at a distance from one another. Between the axes 28 and at a bottom 16 of the motor vehicle 1 is an installation space 4th for the high-voltage battery 3 intended. The installation space 4th is between those on the sides of the vehicle 25th , 26th arranged sills 31 arranged. The axes of rotation 10 , 11 , 12th , 13th the swivel arms 6th , 7th , 8th , 9 are in the sills 31 arranged. The swivel arms 6th , 7th , 8th , 9 are each in the sills 31 arranged integrated so that at least part of the rocker panel 31 , so part of the body of the motor vehicle 1 , between a floor on which the motor vehicle 1 and the respective swivel arm 6th , 7th , 8th , 9 is arranged.

The motor vehicle includes the installation space 4th for the high-voltage battery 3 as well as a swivel device 5 with a first swivel arm 6th , the one on the motor vehicle 1 arranged first axis of rotation 10 between a first position 14th and a second position 15th is pivotable. In the first position 14th is the first swivel arm 6th the installation space 4th for installing or removing the high-voltage battery 3 free, being in the second position 15th the high-voltage battery 3 through the first swivel arm 6th in the installation space 4th is fixed. The remarks on the first swivel arm 6th apply equally to the second swivel arm 7th with the second axis of rotation 11 , the third swivel arm 8th with the third axis of rotation 12th and the fourth swivel arm 9 with the fourth axis of rotation 13th .

The installation space 4th is at a bottom 16 of the motor vehicle 1 arranged. The swivel arms 6th , 7th , 8th , 9 are in one plane 17th below the installation space 4th pivotable.

The installation space 4th is accessible from below. The high-voltage battery 3 is along the yaw axis 30th in the installation space 4th from below for installation introduced and carried out for expansion. The level 17th , in which the swivel arms 6th , 7th , 8th , 9 are pivotable is below the installation space 4th and thus below that in the installation space 4th arranged high-voltage battery 3 arranged.

In the second position 15th are the swivel arms 6th , 7th , 8th , 9 arranged so that the high-voltage battery 3 through the swivel arms 6th , 7th , 8th , 9 form-fitting in the installation space 4th is arranged. In the first position 14th is the high-voltage battery 3 on the swivel arms 6th , 7th , 8th , 9 over from the installation space 4th removable or can be arranged in these.

The first position 14th and the second position 15th are through an angular range 29 90 degrees apart.

The car 1 or the fixing device 2 comprises a first locking system 18th for mechanical fixation of the second position 15th of the first swivel arm 6th and the second swing arm 7th . The fixing device further comprises 2 a second locking system 20th for mechanical fixation of the second position 15th of the third swivel arm 8th and the fourth swivel arm 9 .

Through the locking system 18th , 20th should pivot the swivel arms 6th , 7th , 8th , 9 in the operation of the motor vehicle 1 , i.e. with a built-in high-voltage battery 3 , be prevented. Any locking system 18th , 20th includes a movable bolt 19th , the opposite of the respective swivel arm 7th , 9 is relocatable.

The bolt 19th is in the swivel arm 7th , 9 arranged and can opposite the swivel arm 7th , 9 be shifted translationally. The bolt 19th works with a bolt holder in the respective other swivel arm 6th , 8th together. The bolt 19th can be pushed into the bolt holder so that each swivel arm can be swiveled 6th , 7th , 8th , 9 then blocked.

The axes of rotation 10 , 11 , 12th , 13th the different swivel arms 6th , 7th , 8th , 9 are arranged parallel to each other. The axes of rotation 10 , 11 , 12th , 13th each extend perpendicular to the longitudinal axis 24 of the motor vehicle 1 and parallel to a yaw axis 30th .

The high-voltage battery 3 has a first high-voltage connection 21 and the motor vehicle 1 a second high-voltage connection 22nd on. The high-voltage battery 3 is via contacting the high-voltage connections 21 , 22nd by motor vehicle 1 electrically connected. The first high-voltage connection 21 is movable on the high-voltage battery 3 arranged. The first high-voltage connection 21 is only translational compared to the high-voltage battery 3 movable.

The first high-voltage connection 21 is through the first swivel arm 6th and the second swivel arm 7th during the pivoting starting from the first position 14th towards the second position 15th can be actuated so that the high-voltage connections are contacted 21 , 22nd in the second position 15th is ensured. The first high-voltage connection 21 is through the swivel arms 6th , 7th can then be actuated just before it reaches its second position 15th has reached, in the present case at most in the area of the last 10 angular degrees of the pivoting.

The car 1 further comprises a reset device 23 for the first high-voltage connection 21 that when the swivel arms pivot 6th , 7th the first high-voltage connection 21 from the second high-voltage connection 22nd moved away and the contacting of the high-voltage connections 21 , 22nd cancels. The reset device 23 includes a spring mechanism that is in the second position 15th in a tensioned state and in the first position 14th the swivel arms 6th , 7th is in a relaxed state.

List of reference symbols

1

Motor vehicle

2

Fixing device

3

High voltage battery

4th

Installation space

5

Swivel device

6th

first swivel arm

7th

second swivel arm

8th

third swivel arm

9

fourth swivel arm

10

first axis of rotation

11

second axis of rotation

12th

third axis of rotation

13th

fourth axis of rotation

14th

first position

15th

second position

16

bottom

17th

level

18th

first locking system

19th

bolt

20th

second locking system

21

first high-voltage connection

22nd

second high-voltage connection

23

Reset device

24

Longitudinal axis

25th

first vehicle page

26th

second side of the vehicle

27

wheel

28

axis

29

Angular range

30th

Yaw axis

31

Sill

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed 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 102013003918 B3 [0003]
• DE 102012205414 B3 [0004]
• DE 102009019185 A1 [0005]

Claims (10)

Motor vehicle (1) with a fixing device (2) for a replaceable high-voltage battery (3), at least comprising an installation space (4) for the high-voltage battery (3) and a swivel device (5) with at least one swivel arm (6, 7, 8, 9) which is pivotable about an axis of rotation (10, 11, 12, 13) arranged on the motor vehicle (1) at least between a first position (14) and a second position (15); wherein the swivel arm (6, 7, 8, 9) in the first position (14) releases the installation space (4) for installing or removing the high-voltage battery (3) and in the second position (15) the high-voltage battery (3) through the at least a swivel arm (6, 7, 8, 9) can be fixed in the installation space (4). Motor vehicle (1) according to Claim 1 , the installation space (4) being arranged on an underside (16) of the motor vehicle (1), the at least one pivot arm (6, 7, 8, 9) being pivotable in a plane (17) below the installation space (4). Motor vehicle (1) according to one of the preceding claims, at least comprising a first locking system (18) for mechanically fixing at least the second position (15) of the at least one pivot arm (6, 7, 8, 9). Motor vehicle (1) according to one of the preceding claims, wherein the first locking system (18) comprises a movable bolt (19) which can be displaced with respect to the at least one swivel arm (6, 7, 8, 9). Motor vehicle (1) according to one of the preceding Claims 3 and 4th , at least comprising a second pivot arm (7) which is pivotable about a second axis of rotation (11) arranged on the motor vehicle (1) at least between the first position (14) and the second position (15), whereby the first locking system (18 ) the first swivel arm (6) and the second swivel arm (7) fix each other. Motor vehicle (1) according to Claim 5 , at least comprising a third pivot arm (8) with a third pivot axis (12) and a fourth pivot arm (9) with a fourth pivot axis (13) and a second locking system (20), the third pivot arm (8) and the fourth pivot arm (9) fix each other by means of the second locking system (20). Motor vehicle (1) according to one of the preceding claims, wherein the high-voltage battery (3) has at least one first high-voltage connection (21) and the motor vehicle (1) has at least one second high-voltage connection (22); wherein the high-voltage battery (3) is electrically connected to the motor vehicle (1) via a contacting of the high-voltage connections (21, 22); wherein at least the first high-voltage connection (21) is movably arranged on the high-voltage battery (3). Motor vehicle (1) according to Claim 5 , wherein the first high-voltage connection (21) can be actuated by the at least one swivel arm (6, 7, 8, 9) during the pivoting, starting from the first position (14) towards the second position (15), so that the high-voltage connections ( 21, 22) is ensured in the second position (15). Motor vehicle (1) according to Claim 6 , at least comprising a reset device (23) for the first high-voltage connection (21) which, when the at least one swivel arm (6, 7, 8, 9) is pivoted, moves the first high-voltage connection (21) away from the second high-voltage connection (22) and makes the contact the high-voltage connections (21, 22) cancels. Motor vehicle (1) according to one of the preceding claims, at least comprising a longitudinal axis (24) and in each case a vehicle side (25, 26) on each of the two sides of the longitudinal axis (24), wherein the installation space (4) between the vehicle sides (25, 26 ) is arranged, wherein the axis of rotation (10, 11, 12, 13) of the at least one pivot arm (6, 7, 8, 9) is arranged between the installation space (4) and one of the vehicle sides (25, 26).

Images