High voltage accumulator for motor vehicle

Abstract

The invention relates to a high-voltage accumulator having an electrical accumulator module, the high-voltage accumulator having a housing part with a base plate on which the electrical accumulator module is arranged and a frame-shaped edge surrounding the base plate, the frame-shaped edge continuing an outer surface of the base plate in a step-free or offset manner and comprising at least two through openings, the invention relates to a high-voltage accumulator having an opening through which a fastening means for fastening the housing part to a support structure of a motor vehicle can be completely inserted, having a flat cover means comprising a flat cover element and at least two fastening elements arranged on the flat cover element, the cover element completely covers the at least two openings in the arrangement of the cover device in joint with the edge of the housing part and completely or sectionally covers the outer surface of the edge at least in the area of the openings. The at least two fastening elements pass through the at least two openings of the edge and engage the edge at least in sections from behind on the side facing away from the cover element.

Description

Technical Field

[0001] The invention relates to a high-voltage storage device for a motor vehicle. Background Art

[0002] High-voltage storage devices for motor vehicles are usually fixed to the support structure of the motor vehicle in the area of ​​the vehicle floor. For this purpose, the high-voltage storage device comprises a housing part, in or on which at least one electrical storage module is arranged and which is screwed to the support structure in the area of ​​the frame-shaped edge of the housing part. In order to fix the housing part to the support structure, openings must be provided in the edge of the housing part in order to insert the fixing means and fix the housing part to the support structure. In order to prevent dirt and moisture from penetrating through these openings, it is known from the prior art to close the individual openings by a plurality of individual covers or closure covers in order to form an anti-corrosion protection. This proves to be time-consuming and cumbersome. Summary of the invention

[0003] An object of exemplary embodiments of the present invention is to provide a high-voltage storage device in which corrosion protection can be installed quickly and easily.

[0004] This object is achieved by a high-voltage storage device for a motor vehicle, the high-voltage storage device having at least one electrical storage module, the high-voltage storage device having a housing part, the housing part having a base plate and a frame-shaped edge surrounding the base plate, the at least one electrical storage module being arranged indirectly or directly against the base plate, the frame-shaped edge continuing the outer surface of the base plate without steps or offsets and comprising at least two through-openings, a fixing device for fixing the housing part to a supporting structure of the motor vehicle being able to completely penetrate through the openings, and the high-voltage storage device having at least one planar covering device, the covering device comprising a planar covering element and at least two fixing elements arranged on the planar covering element, wherein the covering element, in an edge-engaged arrangement of the covering device with the housing part, completely encloses the at least two openings and at least in the region of the openings completely or in sections encloses the outer surface of the edge, and the at least two fixing elements pass through the at least two openings of the edge and at least in sections engage the edge from behind on a side facing away from the covering element.

[0005] Since the high voltage storage device comprises a cover element, with which at least two openings can be completely enclosed, simultaneous closing of all or at least a plurality of openings can be achieved quickly and simply.

[0006] Furthermore, in this case, a plurality of covering caps does not have to be removed in order to be able to quickly reestablish access to the opening by removing the covering means.

[0007] The edge may include a plurality of rib-like layers which extend parallel to or obliquely to the outer surface of the substrate and around the substrate. The at least two openings may thus be arranged in a first edge element which continues the substrate substantially without steps or by steps and forms the outer surface of the edge. In an arrangement in which the high-voltage storage device is mounted on a motor vehicle, the outer surface of the substrate and the outer surface of the edge, in particular the outer surface of the first edge element, face the driving surface.

[0008] Furthermore, the second layer of the edge can include a second edge element, which is arranged on the side of the outer surface of the first edge element facing away from the base plate and is spaced apart from the first edge element without contact. A recess can be provided on the second edge element, into which the fixing means can be inserted with a neck section and fixed to the support structure, for example, by an external thread section, and is held in contact with the second edge element with a head section having a larger diameter than the recess on the second edge element and thereby fixes the housing part to the support structure.

[0009] The at least two fastening elements of the cover component can in principle be designed in any desired manner as long as they fulfill the function of fastening the cover component via the two openings to the edge of the housing part.

[0010] In an embodiment of the high voltage memory, it has proven to be advantageous that at least one of the at least two fixing elements of the covering device comprises a spacing section extending transversely or obliquely to the covering element and fixed to the covering element, and a respective rear joining section arranged at the free end of the spacing section and extending parallel to or obliquely to the covering element, the rear joining section being arranged at least sectionally in a rear joining position in the joining arrangement of the covering device, in which rear joining position the rear joining section forms a rear joining with an edge of the housing part.

[0011] In an improvement of the last embodiment mentioned above, it has proven to be advantageous that at least one of the at least two fixing elements of the covering device can be introduced into the opening at least along a first joining direction using a spacing section and a rear joining section, and when introduced into the opening, only the rear joining section can be, or when introduced into the opening, the spacing section and the rear joining section can be transferred together along a second joining direction extending transversely or obliquely to the first joining direction into the rear joining position.

[0012] This results in simple joining kinematics, in which the cover means joins at least along a first joining direction with the edge of the housing part.

[0013] Transferable is understood to mean a translational and / or rotational movement. Transferable can also be understood to mean that the elastic, compressible body automatically expands back into an uncompressed contour after passing through the opening.

[0014] The transfer along the second joining direction can be performed manually or automatically.

[0015] In the aforementioned embodiment, it can prove advantageous that at least one of the at least two fixing elements is designed in a clip-like or hook-like manner. If one of the fixing elements is designed in a clip-like manner, it can be compressed and expanded in the engaging arrangement when moving along the first engaging direction, so that it forms a rear engagement with the opening with respect to the first engaging direction.

[0016] In order to ensure secure seating and to reduce the risk of noise generation during operation of the motor vehicle, one embodiment of the high-voltage storage device provides that the rear joining section can be elastically pressed at least in a direction transverse to the second joining direction and is prestressed in particular in the direction of the cover element into a non-pressed basic position.

[0017] If at least one of the at least two fixing elements is designed to be hook-shaped, it can only form a rear engagement with respect to the first engagement direction in the engaging arrangement, i.e. after a transfer along the second engagement direction. In order to prevent the cover element from being unintentionally released from the engaging arrangement, an embodiment of the high-voltage storage device comprises at least one locking device, by means of which the cover element can be fixed in the engaging arrangement against a movement counter to the second engagement direction.

[0018] The locking device can, for example, include an additional component, by means of which the cover device is fixed to the edge. In this case, the locking device can, for example, include a screw, by means of which the cover device is screwed to the edge in the joint arrangement. If the locking device includes a latching element, which is arranged on the cover device on the side facing the edge, and which can be pressed against the first joint direction when the fixing element is introduced along the first joint direction and prestressed into a latching position, in which the latching element engages with a latching section in at least one opening of the edge when the joint arrangement is reached and rests on the inner surface of the opening and forms at least one rear joint with respect to a movement against the second joint direction, then the high-voltage storage device can be constructed simply and with a reduced number of components.

[0019] Since the locking device comprises a latching element which is pressed in the direction of the first engagement direction and is prestressed into a latching position opposite to the first engagement direction, a rear engagement opposite to the second engagement direction can be automatically formed when the engaging arrangement is realized. The covering device is thus secured by the at least two securing elements against movement parallel to the first engagement direction and by the latching element of the locking device against movement opposite to the second engagement direction.

[0020] In principle, it is conceivable that the cover component comprises a plurality of fixing elements which correspond to the number of openings in the edge. However, embodiments of the high-voltage memory are also conceivable in which the edge comprises at least three openings and the cover component comprises at least two fixing elements, wherein the cover elements at least completely surround the at least three openings.

[0021] In this case, a fixing element of the cover component is not arranged in every opening of the edge. For example, it is conceivable that the cover component comprises two fixing elements at opposite ends of the cover component and the central opening is completely enclosed by the cover element.

[0022] The covering element can be designed in principle in any way. The covering element is designed in a planar manner and can include any material. In one embodiment of the high-voltage storage device, the covering element includes a sealing device at least in the area on which the opening is enclosed. The sealing device can include a sealing element, for example, but can also include a coating that has a sealing effect in a joint arrangement.

[0023] This further reduces the risk of moisture or dirt penetrating through the opening into the bonded arrangement of the cover component.

[0024] In addition, the following embodiments of the high voltage memory are conceivable, wherein the covering element of the covering device completely or at least partially clamps the edge on the side of the edge extending parallel to or inclined to the outer surface of the substrate and is configured as a strip, or wherein the covering element of the covering device completely or at least partially clamps the edge and the outer surface of the substrate on the side of the substrate and the edge extending parallel to or inclined to the outer surface of the substrate and forms a bottom protector.

[0025] The covering means, in particular the covering element, can be designed in the form of a strip or a strip if its covering element completely or at least partially surrounds the edge on a side of the edge extending parallel to or obliquely to the outer surface of the substrate.

[0026] If the cover element of the cover device completely or at least partially surrounds the edge and the outer surface of the substrate on one side of the substrate and the edge extending parallel to or obliquely to the outer surface of the substrate, the cover element of the cover device forms a bottom protection element. As a result, an additional bottom protection element can be omitted, so that the high-voltage storage device can be realized with fewer components.

[0027] It can also prove advantageous if the covering element of the covering device comprises a first covering section which completely or at least partially encloses the edge and, if necessary, the outer surface of the substrate on a side of the edge which extends parallel to or obliquely to the outer surface of the substrate, and if necessary, the covering element of the covering device comprises a second covering section which extends transversely to the first covering section and completely or at least partially encloses the edge transversely to the outer surface of the substrate.

[0028] When the covering element of the covering device comprises a second covering section extending transversely to the first covering section, the edge of the housing part can also be enclosed at least in sections transversely to the outer surface of the substrate. In this case, the covering element of the covering device has an L-shaped profile when the first covering section of the covering element of the covering device only encloses the edge at least in sections on both sides, and has a U-shaped profile when the first covering section of the covering element encloses not only the edge but also the outer surface of the substrate.

[0029] The high-voltage storage device can be manufactured with a reduced number of components if the covering device, in particular the covering element, the locking element and the fixing element form a common one-piece component, wherein the fixing element in particular comprises a spacing section and a rear joining section, and / or if the covering device comprises at least one plastic, in particular a one-component or multi-component injection-molded part, or comprises at least one metal, in particular a bent stamped part.

[0030] If the covering means, in particular the covering element, the latching element and the fastening element form a common, one-piece component, the covering means can be joined to the edge of the housing part in a simple manner and without tools.

[0031] If the covering means, which is designed as a common component, comprises a plastic part, this can be provided in a simple manner using an injection molding method.

[0032] If the covering element comprises metal, in particular a bent stamped part, the individual components, such as the fastening element and the latching element, can be formed from a sheet-like or strip-like workpiece by stamping and bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Further features, details and advantages of the invention emerge from the dependent claims, the drawings and the following description of preferred embodiments of the high voltage memory.

[0034] In the accompanying drawings:

[0035] Figure 1 A perspective bottom view showing a first embodiment of a high voltage memory;

[0036] Figure 2 is based on Figure 1 A side view cut along line AA of FIG.

[0037] Figure 3 A perspective bottom view showing a second embodiment of a high voltage memory;

[0038] Figure 4 A sectional detail view of a third exemplary embodiment of a high-voltage memory is shown. DETAILED DESCRIPTION

[0039] The drawing shows an exemplary embodiment of a high-voltage storage device for a motor vehicle, which is generally designated by the reference numeral 2. The high-voltage storage device 2 comprises an electrical storage module (not shown in the drawing).

[0040] Furthermore, the high-voltage storage device 2 comprises a housing part 4, which comprises a base plate 6, on which at least one electrical storage module is arranged indirectly or directly. Furthermore, the housing part 4 comprises a frame-shaped edge 8 surrounding the base plate 6. The frame-shaped edge 8 continues the outer surface of the base plate 6 without steps or offsets. In the embodiment shown in the figures, at least two through openings 10 are arranged in the edge 8, through which fixing means 12 (not shown in the figures) for fixing the housing part 4 to the supporting structure 5 of the motor vehicle can be completely inserted.

[0041] Furthermore, the high-voltage storage device 2 comprises a planar covering component 14 which comprises a planar covering element 16 and at least two fixing elements 18 arranged on the planar covering element 16 .

[0042] In the joined arrangement of the cover means 14 with the edge 8 of the housing part 4, the cover element 16 completely surrounds at least two openings 10 and completely or partially surrounds the outer surface of the frame 8 at least in the region of the openings 10. In the joined arrangement, at least three fixing elements 18 pass through at least two of the openings 10 of the edge 8 and at least partially engage the edge 8 from behind on the side facing away from the cover element 16.

[0043] In the exemplary embodiment of the high voltage storage device 2 shown in the figures, the fixing element 18 comprises a spacer section 20 and a rear engagement section 22. The spacer section 20 is arranged in the engagement arrangement in the opening 10 of the edge 8 and the rear engagement section 22 rests on the edge 8 on the side of the edge 8 facing away from the cover element 16.

[0044] In the embodiment shown in the drawings, the fixing element 18 is designed in the form of a hook. To arrange the fixing element 18, the embodiment shown in the drawings is first moved along a first joining direction 24 with the spacing section 20 and the rear joining section 22 into the corresponding opening 10 of the edge 8 and then transferred along a second joining direction 26 extending transversely to the first joining direction 24 into the rear joining position until the cover device 14 is arranged in a joined arrangement.

[0045] The rear joining section 22 can be elastically pressed transversely to the second joining direction 26 and prestressed in particular in the direction of the cover element 16 into a non-pressed basic position. In the embodiment shown in the figures, the cover element 16 of the cover device 14 comprises a first cover section 28, which is attached to the cover element 16. Figure 1 In the exemplary embodiment shown in FIG. 8 , the edge 8 is completely or at least partially enclosed on a side of the edge 8 that extends parallel to or obliquely to the outer surface of the base plate 6 .

[0046] Figure 3 An embodiment of a high voltage storage device 2 is shown, in which the cover element 16 covering the device 14 with a first covering section 28 on the side of the edge 8 extending parallel to or obliquely to the outer surface of the substrate 6 not only encloses the edge 8 but also the outer surface of the substrate 6, and Figure 3 In the embodiment shown in FIG. 3 , a bottom protection member 30 is formed. Figure 1 and Figure 3 It can be seen in the embodiment that the covering element 16 of the covering device 14 may include a second covering section 32, which extends transversely to the first covering section 28 and completely or at least partially encloses the edge 8 transversely to the outer surface of the substrate 6.

[0047] Figure 1 A first embodiment of a high voltage memory 2 is shown. The figure shows the cover device 14 in a bonded arrangement at the edge 8.

[0048] The opening 10 in the edge 8 is completely surrounded by the covering element 14 .

[0049] Figure 2 Show according to Figure 1 A cross-sectional view of an embodiment of the present invention. Figure 2It can be seen in FIG. 8 that a plurality of fastening elements 18 of the cover means 14 each engage in the opening 10 and form a rear engagement there with respect to the first engagement direction 24 in the engaged arrangement of the cover means 14 on the edge 8 .

[0050] In addition, from Figure 2 It can be seen in FIG. 1 that the cover element 16 and the fastening element 18 of the cover means 14 form a common, one-piece component.

[0051] In addition, from Figure 2 It can be seen from the drawing that the housing part 4 can be fastened to the supporting structure 5 of the motor vehicle by means of fastening means 12 (not explicitly shown in the drawing). For this purpose, the edge 8 of the housing part 4 can be designed in multiple layers. In this case, a plurality of openings 10 can be provided on a first edge element, on which the cover means 14 are arranged, and the fastening means 12 can be held on a further edge element in order to fasten the housing part 4 to the supporting structure 5. The openings 10 accordingly have a diameter through which the fastening means 12 can be moved unhindered in the direction of the second edge element.

[0052] Figure 3 An exemplary embodiment of a high voltage storage device 2 is shown, in which the cover element 14 surrounds the substrate 6 in addition to the frame-shaped edge 8 of the housing part 4 and also on the outer surface of the substrate. Figure 3 In the embodiment shown, the covering element 16 of the covering device 14 forms a bottom protector 30 .

[0053] Figure 4 A further embodiment of a high voltage storage device 2 is shown, in which a locking device 34 is provided. The locking device 34 is designed as a latching element 36. The latching element 36 is arranged on the cover element 16 and can be pressed along the first joining direction 24 opposite to the first joining direction 24 when the fixing element 18 is introduced. The latching element 36 is prestressed into a latching position in which the latching element 36 engages with the latching section in at least one opening 10 of the edge 8 when the engaged arrangement is achieved and rests on the inner surface of the opening 10. There, the latching element 36 forms a rear engagement with respect to a movement counter to the second joining direction 26.

[0054] exist Figure 4 In the exemplary embodiment shown in , the cover element 16 , the fastening element 18 and the latching element 36 form a common, one-piece component.

[0055] The following briefly describes the working mode of the high voltage memory 2:

[0056] In order to arrange the cover element 14 on the edge 8, the cover element 14 with its fastening element 18 is inserted through the opening 10 along the first joining direction 24. In this process, the latching element 36 is pressed in the direction of the cover element 16 counter to the first joining direction 24. With the fastening element 18 arranged in the opening 10, the cover element 14 is moved in the direction of the second joining direction 26. In this process, the rear engagement section 22 of the fastening element 18 engages the edge 8 from behind counter to the first joining direction 24, and the latching element 36 engages in the opening 10 from behind by latching when the engaged arrangement is achieved.

[0057] The features of the invention disclosed in the above description, the claims and the drawings may be essential, both individually and in any combination, to realize the invention in its different embodiments within the scope of the following claims.

[0058] Reference numerals list

[0059] 2High Voltage Memory

[0060] 4 Shell parts

[0061] 5. Load-bearing structure

[0062] 6 substrates

[0063] 8. Edge

[0064] 10 Opening

[0065] 12Fixed devices

[0066] 14 Covering Devices

[0067] 16 Covering elements

[0068] 18Fixing elements

[0069] 20 interval segments

[0070] 22 Rear joint section

[0071] 24 First bonding direction

[0072] 26 Second bonding direction

[0073] 28 First coverage section

[0074] 30 bottom protection piece

[0075] 32 Second coverage section

[0076] 34 Locking device

[0077] 36 locking elements

Claims

1. A high-voltage storage device (2) for a motor vehicle, the high-voltage storage device having at least one electric storage module, the high-voltage storage device having a housing part (4), the housing part having a base plate (6) and a frame-shaped edge (8) surrounding the base plate (6), the at least one electric storage module being arranged indirectly or directly adjacent to the base plate, the frame-shaped edge continuing the outer surface of the base plate (6) without steps or staggered and comprising at least two through openings (10), a fixing device (12) for fixing the housing part (4) to a supporting structure (5) of the motor vehicle being able to be completely inserted through the opening, and the high-voltage storage device having at least one planar covering device (14), the covering device comprising a planar covering element (16) and at least two fixing elements (18) arranged on the planar covering element (16), wherein: The covering element (16) completely encloses the at least two openings (10) in an engagement arrangement of the covering device (14) with the edge (8) of the housing part (4) and completely or partially encloses the outer surface of the edge (8) at least in the region of the openings (10), and the at least two fixing elements (18) pass through the at least two openings (10) of the edge (8) and at least partially engage the edge (8) from behind on a side facing away from the covering element (16).

2. The high voltage memory (2) according to claim 1, characterized in that: At least one of the at least two fixing elements (12) of the covering device (14) comprises a spacing section (20) extending transversely or obliquely to the covering element (16) and fixed to the covering element (16) and a corresponding rear joining section (22) arranged on the free end of the spacing section (20) and extending parallel to or obliquely to the covering element (16), wherein the rear joining section is at least sectionally arranged in a rear joining position in the joining arrangement of the covering device (14), and in the rear joining position the rear joining section (22) forms a rear joining with an edge (8) of the housing member (4).

3. The high voltage memory (2) according to claim 2, characterized in that: At least one of the at least two fixing elements (18) of the cover device (14) can be introduced into the opening (10) at least along a first joining direction (24) using a spacing section (20) and a rear joining section (22), and when introduced into the opening (10), only the rear joining section (22) can be, or when introduced into the opening (10), the spacing section (20) and the rear joining section (22) can be transferred together along a second joining direction (26) extending transversely or obliquely to the first joining direction (24) into the rear joining position.

4. The high voltage memory (2) according to claim 3, characterized in that: The rear joining section (22) can be elastically pressed at least in a direction transverse to the second joining direction (26) and is prestressed—in particular in the direction of the cover element (16)—into a non-pressed basic position.

5. The high voltage memory (2) according to claim 3 or 4, characterized in that: At least one locking means (34) is provided, by means of which the cover means (14) can be fixed in a joined arrangement against movement opposite to the second joining direction (26).

6. The high voltage memory (2) according to claim 5, characterized in that: The locking device (34) comprises a locking element (36), which is arranged on the cover device (14) on the side facing the edge (8), and can be pressed against the first joining direction (24) when the fixing element (18) is introduced along the first joining direction (24) and pre-tensioned into a locking position, in which the locking element (36) engages with a locking section in at least one opening (10) of the edge (8) when the joined arrangement is reached and abuts against the inner surface of the opening (10) and forms at least one rear engagement with respect to a movement against the second joining direction (26).

7. The high-voltage memory (2) according to any one of the preceding claims, characterized in that The edge (8) comprises at least three openings (10), and the covering device (14) comprises at least two fixing elements (18), wherein the covering element (16) at least completely surrounds the at least three openings (10).

8. The high-voltage memory (2) according to any one of the preceding claims, characterized in that The covering element (16) of the covering device (14) completely or at least partially encloses the edge (8) on one side of the edge (8) extending parallel to or obliquely to the outer surface of the substrate (6) and is configured in a strip shape, or the covering element (16) of the covering device (14) completely or at least partially encloses the edge (8) and the outer surface of the substrate (6) on one side of the substrate (6) and the edge (8) extending parallel to or obliquely to the outer surface of the substrate (6) and forms a bottom protection member (30).

9. The high-voltage memory (2) according to any one of the preceding claims, characterized in that The covering element (16) of the covering device (14) comprises a first covering section (28), which completely or at least partially encloses the edge (8) and, if necessary, the outer surface of the substrate (6) on a side of the edge (8) extending parallel to or obliquely to the outer surface of the substrate (6), and, if necessary, the covering element (16) of the covering device (14) comprises a second covering section (32), which extends transversely to the first covering section (28) and completely or at least partially encloses the edge (8) transversely to the outer surface of the substrate (6).

10. The high-voltage memory (2) according to claim 1, characterized in that The covering device (14), in particular the covering element (16), the locking element (36) and the fixing element (18) form a common one-piece component, wherein the fixing element (18) in particular comprises a spacing section (20) and a rear joining section (22), and / or the covering device (14) comprises at least one plastic, in particular a single-component or multi-component injection-molded part, or comprises at least one metal, in particular a bent stamped part.

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