Energy storage with memory module assembly with fan

Abstract

The invention relates to an energy store with a storage module assembly having a fan, wherein the fan is embodied as a radial fan, wherein a channel, in particular an axially running channel, through the storage module assembly opens into a spatial region which is delimited by a cover part of the energy store, which is connected to the storage module assembly, and the storage module assembly, wherein the cover part has a recess, in particular an axially running recess, through the cover part, which is covered by the fan, in particular by a suction region of the fan, in particular on the side of the cover part which faces away from the storage module assembly, wherein the energy store has a deflection hood on the side of the cover part which faces away from the storage module assembly, in particular for deflecting the conveyed air flow in the axial direction.

Description

Technical Field

[0001] This invention relates to an energy storage device having a storage module assembly with a fan. Background Technology

[0002] As is well known, energy storage devices used to store electrical energy have capacitors or batteries.

[0003] An energy storage device is known from the document KR 10 2012 069 274 A as the closest prior art.

[0004] A battery system is known from the document DE 10 2012 222 754 A1.

[0005] A battery cooling system is known from the document US 2015 / 0 037 632 A1. Summary of the Invention

[0006] Therefore, the object of this invention is to construct the energy storage device as compactly as possible.

[0007] According to the present invention, this objective is achieved in an energy storage device as described below.

[0008] A key feature of this invention in a memory module assembly with a fan is that the fan is implemented as a radial flow fan.

[0009] The channel penetrating the memory module assembly, especially the channel axially penetrating the memory module assembly, leads to a spatial region defined by the cover component of the energy storage device connected to the memory module assembly and the memory module assembly itself.

[0010] The cover component has a recess that extends through the cover component, particularly an axial recess that extends through the cover component, and the recess is covered by a fan, particularly the suction area of ​​the fan—especially on the side of the cover component opposite to the memory module assembly.

[0011] The energy storage unit has a deflector / direction shroud on the side of the cover component away from the storage module assembly. This deflector is specifically used to deflect / direct the delivered airflow in the axial direction.

[0012] Advantageously, the energy storage device can be compactly configured because heat loss is effectively dissipated. A fan is provided for actively delivering cooling airflow, which absorbs heat loss both from the interior and surface of the energy storage device. This enables heat dissipation. In this way, even if the units, particularly battery units or capacitor units (e.g., supercapacitors or similar units), are arranged in contact with each other, thus making the energy storage device compact, it can operate with high discharge and charging currents.

[0013] Therefore, implementing the fan as a radial flow fan causes the delivered airflow to change direction from the axial suction direction to the radial departure direction. Thus, only a further 90° change in direction is needed to redirect the delivered airflow axially using a deflector, thereby enabling the delivered airflow to flow along the outer surface of the energy storage device.

[0014] In an advantageous design, the airflow delivered by the fan is redirected axially by a deflector, particularly the deflector's guide vanes, and flows along the outer side of the memory module assembly. Advantageously, the deflector only requires a 90° deflection, thus resulting in minimal losses due to the deflection.

[0015] In a favorable design, the directional shield is connected to the memory module assembly and / or the cover component. Advantageously, this allows for simple fastening.

[0016] In an advantageous design, the duct extends laterally beyond the memory module assembly, allowing airflow between the memory module assembly and the duct, particularly the duct's air deflectors, to exit axially. Advantageously, the energy storage device can be placed on the ground, and despite this, the duct still creates a gap between the memory module assembly and the ground, through which the airflow from the outlet openings passes. This reliably ensures heat dissipation for the energy storage device.

[0017] In a favorable design, the channels are spaced apart and / or extend parallel to each other. This allows for uniform heat dissipation within the energy storage area.

[0018] In a favorable design, the airflow from the fan flows into a second space region, which is defined by a deflector shroud and cover components.

[0019] An outlet opening is provided between the deflector and the memory module assembly, specifically for allowing the delivered airflow to exit from the second spatial region into the environment. Advantageously, the airflow exiting from the fan can stabilize within the spatial region defined by the deflector and cover components, and thus flow uniformly from said spatial region—particularly along the outer surface of the energy storage device—into the environment at the outlet opening.

[0020] In a favorable design, the airflow delivered by the fan flows through the channel in the opposite direction to the flow direction of the outlet opening. This is advantageous because it enables effective heat dissipation, particularly from the internal areas and additionally from the external surfaces.

[0021] In a favorable design, the fan's axis of rotation is oriented parallel to the axial direction. Advantageously, a fan implemented as a radial flow fan can draw air axially, meaning that a change in airflow direction does not need to occur in the suction region.

[0022] In a favorable design, the deflector is made of sheet metal as a bent component, and the air guide plate is the bent area of ​​the deflector. Advantageously, the deflection of the airflow delivered by the fan can be achieved in a simple manner.

[0023] In a favorable design, the fan has an outlet for allowing airflow to exit, with the airflow delivered by the fan flowing radially out through the outlet.

[0024] Specifically, the circumferential angle range covered by the outlet overlaps with the circumferential angle range covered by the outflow opening, or the circumferential angle range covered by the outlet includes the circumferential angle range covered by the outflow opening. Advantageously, the airflow radially exiting the fan does not cover the entire circumference of the fan, but only exits at a single location on the circumference, pointing the airflow from the fan towards the outlet. Therefore, loss-causing changes in airflow direction are unnecessary.

[0025] In a favorable design, within the memory module assembly, the net diameter of each channel can vary periodically along the axial direction.

[0026] In particular, the memory module assembly has modules arranged sequentially along the axial direction, wherein the net diameter has a maximum value in the connection region between every two modules. Advantageously, the airflow does not flow through the channel in a laminar manner, but rather in a turbulent manner, thereby enabling improved heat transfer from the memory module assembly to the airflow.

[0027] This invention is not limited to the combination of features in the claims. Those skilled in the art will recognize, in particular, the possibility of other meaningful combinations of the features in the claims and / or individual claim features and / or features in the specification and / or drawings, arising from the stated purpose and / or by comparison with the prior art. Attached Figure Description

[0028] The invention will now be explained in more detail with reference to the schematic diagram.

[0029] Figure 1 A perspective view of the energy storage device is shown in the diagram.

[0030] Figure 2 Showing the attached side view;

[0031] Figure 3 A top view of the memory module components is shown;

[0032] Figure 4The image shows a side view of the energy storage device as shown in the diagram.

[0033] Figure 5 Showing more detail from one viewing direction Figure 1 A single component;

[0034] Figure 6 The individual components are shown in more detail from another viewing direction. Detailed Implementation

[0035] As shown in the accompanying drawings, the energy storage device according to the invention has a storage module assembly 1. This storage module assembly has regularly arranged units, particularly double-layer capacitors (such as supercapacitors) and / or battery units, which are electrically connected to each other. Preferably, for this purpose, the series circuit is formed by units connected in parallel with each other. This thus provides the desired voltage.

[0036] An interface 2 is located on the upper side of the energy storage device.

[0037] A radial flow fan 4 is provided to deliver cooling airflow, which flows through the energy storage device and thus dissipates heat. For this purpose, axially through, spaced apart and parallel channels are provided in the storage module assembly 1, through which the airflow delivered by the radial flow fan 4 passes.

[0038] A cover member 3 is disposed on the end side of the memory module assembly 1 facing the radial fan 4. The cover member is connected to the memory module assembly 1 in a sealed, especially airtight, manner. For this purpose, the cover member 3 has a recess into which a channel leads. The end side of the memory module assembly 1 rests against the cover member 3. A protrusion, especially a raised edge, formed around the outer edge of the cover member 3 contacts and seals the memory module assembly 1, so that the delivered airflow does not flow out laterally, i.e., does not flow out at the edge and / or at the contact area between the cover member 3 and the memory module assembly 1.

[0039] Because the memory module assembly 1 is preferably composed of cylindrical units, the edge of the cover member 3 has recesses, particularly radially outward-pointing recesses, on its side facing the memory module assembly 1, which correspond to the arc segments of the cylinder. Therefore, the edge of the cover member 3 is shaped according to the external orientation of the end side of the memory module assembly 1.

[0040] The cover component 3 also has an axially extending, particularly circular, notch through which the airflow delivered by the radial fan 4 passes. Here, the net diameter of the notch is larger than the diameter of the suction area of ​​the radial fan 4, that is, particularly larger than the inner diameter of the airflow that enters the radial fan 4, is drawn in by the radial fan 4, and is thus delivered.

[0041] The housing of the radial fan 4, located on the side of the cover component 3 opposite to the memory module assembly 1, is connected to the cover component 3 in a sealed manner, particularly in an airtight manner. On the other side, i.e., on the side of the radial fan 4 opposite to the memory module assembly 1 and / or the cover component 3, a deflector 5 is arranged.

[0042] Therefore, the radial flow fan 4 is arranged axially, in particular, between the directional shield 5 and the cover component 3.

[0043] The deflector 5 is configured to deflect the airflow that is radially directed and / or delivered by the radial fan 4. Here, the airflow that is actually radially delivered by the radial fan 4 will be deflected in the axial direction, that is, deflected in the opposite direction to the airflow drawn in by the radial fan 4.

[0044] Therefore, a guide vane 6 is provided on the deflector 5 or a correspondingly shaped area is provided on the deflector 5. In all subsequent references, the guide vane 6 will be used. Thus, the guide vane can be integrally constructed on or together with the deflector 5, either as a single piece, or alternatively as two pieces, especially as a dual-piece structure.

[0045] Here, the airflow radially outward from the radial fan 4 is redirected axially by the guide plate 6 or the corresponding shaped area.

[0046] In this way, the lower side of the memory module component 1 can be flushed from below by the redirected airflow.

[0047] Therefore, the airflow conveyed through the channel is collected in the recess of the cover member 3, and from there is guided to the suction area of ​​the radial fan 4 through the axially penetrating notch of the cover member. By means of the deflector 5, the airflow flowing from the radial fan 4 is deflected, causing the deflected airflow to flow along the lower side of the memory module assembly 1. Therefore, heat dissipation occurs not only inside the memory module assembly 1, but also on the outside.

[0048] The memory module assembly 1 has modules arranged sequentially along the axial direction. Therefore, depending on the energy storage capacity, a corresponding number of modules can be arranged in series and connected to each other.

[0049] In particular, the axial direction is therefore parallel to the longitudinal axis of the memory module assembly.

[0050] Within the memory module assembly, the net diameter of each channel varies periodically along the axial direction, with the net diameter having a maximum value in the connection region between every two corresponding modules. Therefore, the channel is narrowest in the middle of the respective module.

[0051] Each module has a housing portion that houses a unit. The units are each cylindrically shaped, thus the housing area of ​​each unit has a corresponding inner cylindrical / cylindrical region. Each unit is implemented as a capacitor, particularly a double-layer capacitor, or as a battery unit. The housing portions of every two adjacent modules of the memory module assembly 1 are detachably connected to each other by means of threaded connections. These units are electrically connected to each other.

[0052] In another embodiment of the invention, an additional air guide plate is provided on the deflector 5 as a deflection area, so that the deflected airflow also flows along the other side of the memory module assembly 1.

[0053] List of reference numerals in the attached diagram:

[0054] 1 Memory module components 2 interface 3 Cover component 4 Radial fan 5 Variable direction shield 6 air guide plate 7 Channels, especially axially continuous channels

Claims

1. Energy store with a storage module assembly having a fan, the fan is embodied as a radial fan, the channels running axially through the storage module assembly open into a space region which is delimited by a cover part of the energy store which is connected to the storage module assembly and by the storage module assembly, the cover part has a recess which runs axially through the cover part, the recess being covered on the side of the cover part which faces away from the storage module assembly by a suction region of the fan, the energy store has a deflection hood on the side of the cover part which faces away from the storage module assembly, the deflection hood serving to deflect the conveyed air flow in the axial direction, wherein the axial direction is parallel to a longitudinal axis of the storage module assembly, the net diameter of each of the channels can vary periodically in the axial direction within the storage module assembly, the storage module assembly has modules which are arranged one after the other in the axial direction, wherein the net diameter has a maximum value in the region of the connection of each two modules.

2. Energy store according to claim 1, characterized in that the air flow conveyed by the fan is deflected in the axial direction by a deflection flap of the deflection hood and flows along the outside of the storage module assembly.

3. Energy store according to claim 1 or 2, characterized in that the deflection hood is connected to the storage module assembly and / or to the cover part.

4. Energy store according to claim 2, characterized in that the deflection hood laterally exceeds the storage module assembly, so that the air flow flowing between the storage module assembly and the deflection flap of the deflection hood flows in the axial direction.

5. Energy store according to claim 1 or 2, characterized in that the channels are spaced apart from one another and / or run parallel to one another.

6. Energy store according to claim 1 or 2, characterized in that the air flow flowing from the fan flows into a second space region which is delimited by the deflection hood and by the cover part, a flow-out opening is provided between the deflection hood and the storage module assembly for the conveyed air flow to flow out of the second space region into the environment.

7. Energy store according to claim 6, characterized in that the air flow conveyed by the fan flows through the channels in a direction which is opposite to the flow-through direction of the flow-out opening.

8. Energy store according to claim 1 or 2, characterized in that the rotational axis of the fan is oriented parallel to the axial direction.

9. Energy store according to claim 2 or 4, characterized in that the deflection hood is made from sheet metal as a punched part, the deflection flap being a bent region of the deflection hood.

10. Energy store according to claim 6, characterized in that the fan has an outlet for the air flow to exit from the fan, the air flow conveyed by the fan exiting radially through the outlet, a circumferential angular range covered by the outlet overlaps a circumferential angular range covered by the flow-out opening, or the circumferential angular range covered by the outlet comprises the circumferential angular range covered by the flow-out opening.

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