ENERGY STORE INCLUDING A STORAGE MODULE ASSEMBLY WITH FANS

Abstract

An energy store includes a storage module having a fan. The fan is arranged as a radial fan, and channels extend through the storage module, e.g., axially, open into a spatial region which is delimited by a cover part of the energy store connected to the storage module and the storage module. The cover part has a recess extending through the cover part, e.g., axially, which is covered by the fan, e.g., by the suction region of the fan, e.g., on the side of the cover part facing away from the storage module, and the energy store has a deflection hood, e.g., for deflecting the conveyed air flow in the axial direction, on the side of the cover part facing away from the storage module.

Claims

1-11. (canceled)

12. An energy store, comprising: a storage module; a cover part connected to the storage module; a deflection hood arranged on a side of the cover part facing away from the storage module; and a radial fan; wherein channels extending through the storage module open into a spatial region delimited by the cover part and the storage module; and wherein a recess extends through the cover part and is covered by the fan.

13. The energy store according to claim 12, wherein the channels extend axially through the storage module, the recess extends axially through the cover part, the recess is covered by a suction region of the fan on a side of the cover part facing away from the storage module, the deflection hood is adapted to deflect a conveyed air flow in an axial direction that is parallel to a longitudinal axis of the storage module.

14. The energy store according to claim 12, wherein the deflection hood is adapted to deflect an air flow, conveyed by the fan, in an axial direction to flow along an outside of the storage module.

15. The energy store according to claim 12, wherein an air baffle plate of the deflection hood is adapted to deflect an air flow, conveyed by the fan, in an axial direction to flow along an outside of the storage module.

16. The energy store according to claim 12, wherein the deflection hood is connected to the storage module and/or the cover part.

17. The energy store according to claim 12, wherein the deflection hood protrudes laterally over the storage module, so that air flow emerging between the storage module and the deflection hood exits in the axial direction.

18. The energy store according to claim 12, wherein the deflection hood protrudes laterally over the storage module, so that air flow emerging between the storage module and an air baffle plate of the deflection hood exits in the axial direction.

19. The energy store according to claim 12, wherein the channels are spaced apart from one another and/or extend in parallel to each other.

20. The energy store according to claim 12, wherein an air flow exiting from the fan flows into a second spatial region delimited by the deflection hood and the cover part, and an outlet opening is provided between the deflection hood and the storage module.

21. The energy store according to claim 12, wherein an air flow exiting from the fan flows into a second spatial region delimited by the deflection hood and the cover part, and an outlet opening is provided between the deflection hood and the storage module to exit conveyed air flow from the second spatial region into the surroundings.

22. The energy store according to claim 20, wherein an air flow conveyed by the fan flows through the channels in an opposite direction to a through-flow direction of the outlet opening.

23. The energy store according to claim 12, wherein an axis of rotation of the fan is aligned in parallel to an axial direction of the energy store.

24. The energy store according to claim 12, wherein the deflection hood is arranged as a stamped-bent, sheet metal part and an air baffle of the deflection hood plate is arranged an angled region of the deflection hood.

25. The energy store according to claim 12, wherein the fan includes an outlet opening for an emerging air flow, and a circumferential angular range overlapped by the outlet opening overlaps and/or includes a circumferential angular range covered by the outlet opening.

26. The energy store according to claim 12, wherein the fan includes an outlet opening for an emerging air flow through which the air flow conveyed by the fan exits radially, and a circumferential angular range overlapped by the outlet opening overlaps and/or includes a circumferential angular range covered by the outlet opening.

27. The energy store according to claim 12, wherein a clear diameter of each of the channels varies periodically in an axial direction within the storage module.

28. The energy store according to claim 27, wherein the storage module includes modules arranged in succession in the axial direction, and the clear diameter of each channel has a maximum value in a connecting region of two respective modules.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is an exploded view of an energy store.

[0022] FIG. 2 is a side view of the energy store.

[0023] FIG. 3 is a top view of the storage module.

[0024] FIG. 4 is an exploded side view of the energy store.

[0025] FIG. 5 is an enlarged perspective view of individual parts of the energy store illustrated in FIG. 1.

[0026] FIG. 6 is another enlarged perspective view of the individual parts of the energy store illustrated in FIG. 1.

DETAILED DESCRIPTION

[0027] As shown in the Figures, an energy store according to an example embodiment of the present invention has a storage module 1. This has regularly arranged cells, e.g., double-layer capacitors, such as ultracaps, and/or accumulator cells, which are electrically interconnected with one another. For this purpose, series circuits, for example, are formed from cells which are interconnected with one another in parallel. A desired voltage can thus be provided.

[0028] The connections 2 are arranged on the upper side of the energy store.

[0029] A radial fan 4 is provided for conveying a cooling air flow which flows through the energy store and thus cools it. For this purpose, channels which are axially continuous, spaced apart from one another, and aligned in parallel to one another are provided in the storage module 1, through which the air flow conveyed by the radial fan 4 is guided.

[0030] On its end face facing toward the radial fan 4, a cover part 3 is placed on the storage module 1 and is connected to the storage module 1 in a tight, e.g., airtight manner. For this purpose, the cover part 3 has a depression into which the channels open. The end face of the storage module 1 is placed against the cover part 3. A circumferential projection, e.g., a bead, formed on the outer edge of the cover part 3 contacts the storage module 1 and seals it such that the conveyed air flow does not emerge laterally, e.g., at the edge, and/or does not emerge at the contact region between cover part 3 and storage module 1.

[0031] Since the storage module 1 includes, for example, cylindrical cells, the edge of the cover part 3, e.g., on its side facing toward the storage module 1, has indentations, e.g., radially outwardly directed depressions, each of which corresponds to a cylinder segment. The edge of the cover part 3 is thus shaped in accordance with the outer course of the end face of the storage module 1.

[0032] The cover part 3 additionally has an axially continuous, e.g., circular, recess through which the air flow conveyed by the radial fan 4 flows. The clear diameter of the recess is larger than the diameter of the suction region of the radial fan 4, e.g., larger than the inner diameter of the air flow which enters the radial fan 4, and is suctioned in and thus conveyed by the radial fan 4.

[0033] The housing of the radial fan 4 arranged on the side of the cover part 3 facing away from the storage module 1 is connected to the cover part 3 in a tight, e.g., airtight manner. On the other side, e.g., on the side of the radial fan 4 facing away from the storage module 1 and/or from the cover part 3, a deflection hood 5 is arranged.

[0034] The radial fan 4 is thus arranged, e.g., axially, between the deflection plate 5 and the cover part 3.

[0035] The deflection hood 5 is provided for deflecting the air flow, which is directed and/or conveyed radially outward by the radial fan 4. In this case, the air flow actually conveyed radially outward by the radial fan 4 is deflected in the axial direction, e.g., in the direction opposite to the air flow suctioned in by the radial fan impeller 4.

[0036] For this purpose, an air baffle plate 6 is provided on the deflection hood 5 or a correspondingly shaped region is formed on the deflection hood 6. In the following description, an air baffle plate 6 is referred to in each case. This can thus be formed integrally, e.g., in one part, or alternatively in two parts, e.g., two pieces, on or with the deflection hood 5.

[0037] In this case, the air flow conveyed radially outward by the radial fan 4 is deflected in the axial direction by the air baffle plate 6 or by the correspondingly shaped region.

[0038] In this manner, this deflected air flow can wash below the lower side of the storage module 1.

[0039] Thus, the air flow conveyed through the channels is collected in the depression of the cover part 3 and from there guided through the axially continuous recess of the cover part to the suction region of the radial fan 4. By deflecting the air flow emerging from the radial fan 4 by the deflection hood 5, the deflected air flow flows along the lower side of the storage module 1. Thus, cooling takes place not only inside the storage module 1, but also on the outside.

[0040] The storage module 1 has modules arranged in succession in the axial direction. Thus, depending on the energy storage capacity, a corresponding number of modules are arrangeable in series and connectable to one another.

[0041] For example, the axial direction is thus parallel to the longitudinal axis of the storage module.

[0042] The clear diameter of each of the channels in the axial direction within the storage module is periodically variable, and the clear diameter in each case has its maximum value in the connecting region of two respective modules. This means that the channel is narrowest in each case in the middle of the respective module.

[0043] Each of the modules has a housing part in which cells are received. The cells are each shaped cylindrically so that the receiving region of the respective housing part has corresponding inner cylindrical regions. Each cell is arranged either as a capacitor, e.g., a double-layer capacitor, or as an accumulator cell. The housing parts of two respectively adjacent modules of the memory module 1 are detachably connected to one another by a screw. The cells are electrically interconnected with one another.

[0044] In further exemplary embodiments according to the present invention, further air baffle plates are arranged as deflection regions on the deflection hood 5, so that the deflected air flow also flows along other sides of the storage module 1.

LIST OF REFERENCE NUMERALS

[0045] 1 memory module

[0046] 2 connection

[0047] 3 cover part

[0048] 4 radial fan

[0049] 5 deflection hood

[0050] 6 air baffle plate

[0051] 7 channel, e.g., axially continuous