Housing arrangement, energy storage system, motor vehicle, and method for producing energy storage system

Abstract

The invention relates to a housing device (10) for receiving a cell device (110) for storing electrical energy for a motor vehicle (150). The invention further relates to an energy storage system (100) comprising at least one housing device (10) and at least one individual device (110), to a motor vehicle (150) having an energy storage system (100), and to a production method (200) for producing an energy storage system (100).

Description

Technical Field

[0001] This invention relates to a housing assembly for receiving a single unit. The invention also relates to an energy storage system comprising at least one housing assembly and at least one single unit, a motor vehicle having the energy storage system, and a method for manufacturing the energy storage system. Background Technology

[0002] In existing known housing devices for receiving individual units, the individual unit is clamped in a separate, fixed frame to compensate for unit expansion, for example to prevent reversible expansion during charging and discharging and / or to prevent continuous expansion due to aging of the individual unit. Known frames are typically designed as sheet metal retainers and / or as extrusion structures of the individual unit between aluminum die castings or extruded profiles.

[0003] Individual units are mostly pre-tensioned with a certain pressure and apply large forces to the load-bearing structure and / or frame structure during operation. As a result, the load-bearing structure and / or frame structure are mostly implemented to be very rigid and / or stable, which mostly results in increased material consumption, weight consumption, cost consumption and / or component consumption.

[0004] A disadvantage of known solutions is that the individual units are mostly mounted inside rigid load-bearing frames, such as those using metal components, which contribute significant weight due to the base material and are interconnected through multiple assembly steps. Additional costs arise due to the conductivity of the metals in order to ensure the insulation of the individual units, for example by wrapping the lithium-ion cells with a thin film and / or attaching an insulating film to the metal components. Summary of the Invention

[0005] Therefore, the objective of this invention is to eliminate, or at least partially eliminate, the aforementioned disadvantages of the prior art. In particular, this invention aims to provide a housing device by which receiving units can be implemented particularly simply. Furthermore, this invention aims to provide, in particular, an energy storage system, a motor vehicle, and a method of manufacturing.

[0006] The aforementioned task is solved by the claims. In particular, the task is solved by a housing device having the features of independent claim 1. Furthermore, the task is solved by an energy storage system having the features of independent claim 13, a motor vehicle having the features of independent claim 14, and a manufacturing method having the features of independent claim 15. Other advantages and details of the invention are derived from the dependent claims, the description, and the drawings. Herein, the features described in conjunction with the housing device according to the invention also apply to the energy storage system according to the invention, the motor vehicle according to the invention, and the manufacturing method according to the invention, and vice versa, so that the disclosure of various aspects of the invention is always mutually referential or can be mutually referenced.

[0007] According to a first aspect of the invention, this task is accomplished by a housing device for receiving a single unit for storing electrical energy for a motor vehicle, the housing device having a base and a receiving volume for receiving the single unit at least partially within the base, wherein the base includes at least one inner side facing the receiving volume and at least one outer side facing away from the receiving volume, wherein the base has at least two opposing main ribs on the at least one outer side for structurally reinforcing the housing device, wherein the base has at least one tool opening on the at least one inner side for each of the at least two opposing main ribs, wherein the at least two tool openings are designed for engaging a tool to jointly introduce the single unit into the receiving volume, wherein the base, the at least two opposing main ribs, and the at least two tool openings are designed as a single piece.

[0008] The substrate is preferably made of plastic. The housing assembly advantageously enables a very rigid housing for receiving the individual units. The advantageous structural characteristics of the housing assembly are primarily achieved through external ribs in the form of at least two opposing main ribs. In addition to these structurally advantageous characteristics, the ribs also enable, for example, a good material distribution for manufacturing the housing assembly in the injection mold. As explained in detail below, the ribs are designed on the housing assembly in the extrusion direction of the individual units and / or along the extrusion direction of the individual units.

[0009] The housing assembly forms a receiving volume via a base. The base is preferably designed in a container shape. The base is preferably designed to open only in one spatial direction and to be closed and / or sealed in the other five spatial directions. Visually and exemplarily, the base is designed in the mounting position to open only upwards for receiving individual housing units. The base has an inner side and an outer side. The inner side faces the receiving volume, and the outer side faces away from the receiving volume. Preferably, the base has exactly one receiving volume and / or exactly no multiple receiving volumes.

[0010] The at least two opposing main ribs enable structural reinforcement of the substrate. Within the scope of this invention, structural reinforcement of the substrate by the at least two opposing main ribs is understood to mean structurally reinforcing the substrate to resist the expansion forces of the individual device and / or to clamp the individual device within the receiving volume. The at least two opposing main ribs are designed on the outer side of the substrate and are integrally designed with the substrate. The integral design of the at least two devices within the scope of this invention is preferably understood to mean a one-piece, integral, and / or material-locking connection of the at least two devices. The at least two opposing main ribs enable the housing device to absorb and / or withstand the stress and / or expansion forces of the individual device.

[0011] The at least two opposing main ribs are preferably arranged and / or designed on two opposing outer sides of the housing assembly. The at least two opposing main ribs preferably extend at least 50%, at least 60%, at least 70%, at least 80%, or at least 90% of the respective surfaces of the base, especially the walls of the base and / or the outer sides of the base.

[0012] The at least two opposing main ribs differ from simple structuring and / or reinforcement of the substrate's wall thickness and / or outer wall within the scope of this invention. Preferably, the at least two opposing main ribs are capable of structurally stabilizing the substrate, rather than merely stabilizing corresponding wall sections of the substrate. Preferably, the at least two opposing main ribs are designed and / or constructed to resist both tension and pressure.

[0013] The insertion of a single-unit device into a housing device is achieved through at least two tool gaps according to the invention. Before insertion, the single-unit device is compressed by the tool and inserted into the receiving volume in a compressed state. By retracting the tool, the single-unit device expands again, creating a press-fit and / or frictional lock between the single-unit device and the base of the housing device in the receiving volume. The tool can advantageously be moved into and out of the base via the at least two tool gaps according to the invention. Preferably, the at least two tool gaps are arranged on at least one inner side for each of the at least two opposing main rib devices. Preferably, multiple tool gaps are provided and arranged on each side to achieve uniform and / or protective compression of the single-unit device. Preferably, the tool does not open the base of the housing device by inserting the single-unit device. Insertion of the single-unit device can preferably be achieved by compressing the single-unit device. Compression of the single-unit device, within the scope of the invention, is preferably understood as compression of the intermediate material of the single-unit device (e.g., a foam pad between the single-unit devices). The single-unit device preferably includes a planar spring device (Flächenfedervorrichtungen) between the single-unit devices, for example, in the form of the aforementioned intermediate material of the single-unit device, to enable compression of the single-unit device. The at least two tool openings are preferably understood as material openings in the base body. The at least two tool openings are preferably designed and / or constitute a common volume with the receiving volume. The base body, the at least two opposing main ribs, and the at least two tool openings are designed as a single piece, integral, and / or material-locking. Preferably, the base body is made of casting and is therefore particularly advantageous to manufacture.

[0014] Within the scope of this invention, a single device should be understood as a single device and / or a single module. A single device is preferably designed to be rechargeable. Preferably, single devices are connected in series, for example, to provide an operating voltage of 400V.

[0015] The housing device designed according to the invention is particularly advantageous because it enables the reception of the individual unit for storing electrical energy for motor vehicles with particular simplicity, and in particular, it advantageously ensures the tension of the individual unit and the reliable stability of the housing device.

[0016] According to a preferred improvement of the invention, the housing device may be specified to include a stacking direction for stacking individual units to be received, wherein the at least two main ribs are formed of the base opposite each other along the stacking direction. The individual units have a stacking direction in which they are arranged close to each other and stacked. The stacking direction preferably corresponds to the main expansion direction of the individual units, such that clamping the individual units in the stacking direction is advantageous for their operation. Exemplarily and illustratively, the individual units are designed as square blocks arranged close to each other along their long sides. Preferably, the individual units have a main extension plane. The individual units extend primarily in two directions of the main extension plane, with the extension along a third spatial axis being less than the extensions along the first two spatial axes. The stacking direction is preferably designed to be orthogonal to the main extension plane of the individual units. The structural reinforcement of the base along the stacking direction by the at least two opposite main ribs is particularly advantageous because the housing device enables reliable and efficient clamping of the individual units and / or resistance to the expansion forces of the individual units. This housing design is particularly advantageous because it enables the reception of individual units for storing electrical energy for motor vehicles with exceptional simplicity, and in particular, it advantageously ensures the tension of the individual units and the reliable stability of the housing.

[0017] According to a preferred embodiment of the invention, the housing assembly may include at least two opposing monolithic abutment surfaces on its inner side, wherein the at least two opposing monolithic abutment surfaces are designed without forming draft or substantially without forming draft, and / or the housing assembly includes abutment panels. The expression "X or substantially X" within the scope of the invention should be understood as possible, minor deviations, such as due to manufacturing tolerances, material properties, and / or process characteristics, without altering the intentional function upon which the feature is based. A monolithic abutment surface can be understood as a contact surface of the housing assembly. The monolithic abutment surfaces are designed respectively on the at least one inner side for each of the at least two opposing main ribs. The monolithic abutment surfaces are designed as continuous surfaces or multiple separate surfaces. Preferably, the monolithic abutment surfaces at least partially surround and / or are designed adjacent to the at least two tool clearances. The monolithic abutment surfaces are preferably designed as a single piece, material-locked, and / or integral with the base. The preferred method for bonding individual units is to enable the device to press the individual units together within the receiving volume.

[0018] Within the scope of this invention, the design of the at least two opposing monomer abutment surfaces without forming draft angles should preferably be understood as follows: the at least two opposing monomer abutment surfaces do not include, or substantially do not include, forming draft angles for easier forming from the manufacturing tool. Of course, small radii, for example, at the transitions between the at least two opposing monomer abutment surfaces and, for example, the bottom section and / or the wall section of the substrate, are practically unavoidable. However, the core of this feature should be understood as follows: the at least two opposing monomer abutment surfaces have abutment surfaces that are as flat as possible for the monomer assembly, and in particular, wherein the at least two opposing monomer abutment surfaces are designed to be parallel to each other and / or orthogonal to the bottom section of the substrate. The monomer abutment surfaces are preferably designed to be orthogonal to the stacking direction.

[0019] The abutment panel is preferably a separate, plate-shaped intermediate layer between the substrate and the monomer device. The abutment panel can preferably be understood as a flat plate for uniform pressure distribution from the housing device to the monomer device. Preferably, the housing device includes two abutment panels arranged opposite each other on the monomer device. Some configurations of the monomer device, such as lithium-ion monomers, require small, uniform clamping forces in the installed state. For the "soft-pack monomer" configuration, the internal structure of the monomer device is surrounded only by a multilayer structure made of thin films, thus the monomer device may be more sensitive to uneven pressure and / or interruptions in the contact surfaces of the housing device in the installed state, for example, in the form of accelerated aging. The monomer abutment surface is interrupted, for example, by the at least two tool gaps and / or has manufacturing-induced interruptions and / or unevenness, making it difficult to apply uniform clamping forces to the monomer device. The at least one abutment panel enables bridging of the at least two tool gaps and / or uniform pressure distribution from the substrate to the monomer device. The at least one abutment panel is preferably designed to be removable from the receiving volume. Particularly preferably, the at least one abutment panel is centered by the centering device described below. For example, for a single device surrounded by an external sheet metal layer and / or sheet metal bushing, the abutment panel is not necessary. Small interruptions in the abutment surface of the substrate, such as the at least two tool gaps, can be compensated for by the sheet metal layer and / or sheet metal bushing.

[0020] This housing design is particularly advantageous because it enables the reception of individual units for storing electrical energy for motor vehicles with exceptional simplicity, especially since the tension of the individual units and the reliable stability of the housing are advantageously ensured by the at least two opposing unit contact surfaces.

[0021] According to a preferred embodiment of the invention, in the housing device, the base may be designed as rectangular and / or include at least four wall sections, a bottom section, and an open cover interface, particularly wherein the at least two opposing main ribs are formed by two opposing wall sections. The base constitutes a receiving volume. Preferably, the base is designed as a container. Preferably, the base and / or the receiving volume is designed as rectangular or substantially rectangular. The base preferably includes four wall sections and a bottom section that surround the receiving volume. The base is preferably designed to be upwardly open in the mounting position and / or has a cover interface for connecting a separate cover device. The cover device is not the subject of this application. The cover interface is preferably formed by the upper end faces of the four wall sections. The four wall sections and the bottom section are preferably designed as a single piece, integrally, and / or material-locking with each other. The four wall sections and the bottom section are preferably fluid-tightly connected to each other and / or manufactured in a single casting. This design of the housing is particularly advantageous because it enables the reception of individual units for storing electrical energy for motor vehicles with exceptional simplicity. In particular, the tension of the individual units and the reliable stability of the housing are advantageously ensured through the design of the base material.

[0022] According to a preferred improvement of the invention, in the housing assembly, the base may be specified to have a wall thickness, and the at least two opposing main ribs may have a depth, wherein the depth has a factor of at least 3, preferably at least 5, at least 7, or at least 10 relative to the wall thickness. The at least two opposing main ribs are designed to structurally reinforce the housing assembly. For example, if the at least two opposing main ribs have a depth, wherein the depth has a factor of at least 3, preferably at least 5, at least 7, or at least 10 relative to the wall thickness, it is advantageous to achieve structural reinforcement of the housing assembly. Within the scope of the invention, the wall thickness is preferably understood to be the wall thickness of the base. The wall thickness is preferably understood to be the average wall thickness of the base and / or the wall thickness of the base in the following wall sections, on which corresponding main ribs are designed. The depth of the main ribs is preferably understood to be orthogonal to the corresponding wall section. Preferably, the depth of the main ribs along the stacking direction of the base can be understood. Intuitively and exemplaryly, the wall thickness of the base is chosen to be 5 mm. In this example, the depth of each of the at least two opposing main ribs is 2 cm. The depth of the at least two opposing main ribs is preferably adapted to the unit and / or its clamping. Higher clamping forces on the unit preferably result in a more stable and thus deeper design of the at least two opposing main ribs. Alternatively or additionally, the depth of the at least two opposing main ribs corresponds to a factor of 0.8 to 1.5, particularly 0.9 to 1.2, relative to the thickness of the unit. This design of the housing is particularly advantageous because it allows for particularly simple reception of the unit for storing electrical energy for motor vehicles, especially where the tension of the unit and the reliable stability of the housing are advantageously ensured by the design of the at least two opposing main ribs.

[0023] According to a preferred improvement of the invention, the housing assembly may be provided with at least two opposing centering devices on at least one inner side for centering the individual unit within the receiving volume, particularly orthogonally to the stacking direction. The at least two centering devices are designed to center the individual unit within the receiving volume. Centering of the individual unit by the at least two centering devices is orthogonal to the stacking direction, parallel to the unit's contact surface, parallel to the at least two opposing main ribs, and / or along the main extension plane of the individual unit. The at least two centering devices are, for example, designed as tapered extensions on the inner wall of the base, thereby achieving progressive centering during insertion of the individual unit. The at least two centering devices are preferably designed over the entire width of the receiving volume or substantially over the entire width of the receiving volume. The at least two centering devices are preferably designed as a single piece, material-locking, and / or integral with the base. This design of the housing is particularly advantageous because it enables the reception of individual units for storing electrical energy for motor vehicles with exceptional simplicity. In particular, the tension of the individual units and the reliable stability of the housing are advantageously ensured by the design of the at least two centering devices.

[0024] According to a preferred improvement of the invention, in the housing device, the at least two tool recesses may be arranged opposite to one of the at least two opposing main rib devices on the at least one inner side. The at least two tool recesses are preferably arranged opposite to each of the at least two opposing main rib devices on the at least one inner side. The at least two tool recesses are preferably designed as engagement portions for inserting and / or retrieving tools from the unit device. Preferably, multiple tool recesses are provided and arranged on each side to achieve uniform and / or protective compression of the unit device. Preferably, the tool recesses are centered in the base and / or arranged at uniform intervals between each other. Preferably, the at least two tool recesses are designed to be centered relative to the at least two opposing main rib devices. Preferably, the at least two tool recesses extend at least partially into the at least two opposing main rib devices on the side opposite to the wall thickness of the base. This housing design is particularly advantageous because it enables the reception of individual units for storing electrical energy for motor vehicles with exceptional simplicity. In particular, the tension of the individual units and the reliable stability of the housing are advantageously ensured by the design of the at least two tool clearances.

[0025] According to a preferred improvement of the invention, the housing assembly may include at least one secondary rib, wherein the secondary rib is designed to be flatter than the primary rib. The at least two opposing primary ribs are distinct from the secondary ribs within the scope of the invention. The at least two opposing primary ribs preferably provide structural stability to the base, and not merely to corresponding wall sections of the base. Preferably, the at least two opposing primary ribs are designed and / or constructed to resist both tension and pressure. The secondary rib should be understood as, for example, a structure on a wall section of the base for stabilizing that wall section. The secondary rib enables advantageous material savings and / or improved stability of the wall section and / or the base. The secondary rib is designed to be flatter, shallower, and / or smaller in volume than the primary ribs. The secondary rib has a depth with a factor of only, for example, 0.5 to 1.5 relative to the wall thickness. The secondary rib is preferably designed on a wall section between wall sections having the at least two opposing primary ribs. The secondary rib is preferably designed on a wall section along the stacking direction. The secondary ribs are preferably designed as a single piece, material-locked, and / or integral with the base. This design of the housing is particularly advantageous because it allows for the very simple reception of the individual unit for storing electrical energy for motor vehicles, and in particular, the tension of the individual unit and the reliable stability of the housing are advantageously ensured by the at least two secondary ribs.

[0026] According to a preferred improvement of the invention, the housing device, particularly the substrate, can be manufactured using injection molding methods, especially microcellular injection molding (MuCell) methods, and / or the housing device, particularly the substrate, includes injected gas pores. If the housing device is manufactured at least partially using microcellular injection molding methods, the housing device, particularly wall thickness and / or material usage, can be further reduced. Microcellular injection molding methods include, for example, foaming during injection molding and / or injecting gas and / or gas mixtures into the substrate material during manufacturing. Preferably, the substrate is made of plastic using a microcellular injection molding-injection molding method. This design of the housing device is particularly advantageous because it allows for particularly simple reception of individual units for storing electrical energy for motor vehicles, especially where the tension of the individual units and the reliable stability of the housing device are advantageously ensured through the design and / or manufacturing of the substrate.

[0027] According to a preferred embodiment of the invention, the housing assembly may include at least one clamping device, wherein the at least one clamping device is at least partially arranged circumferentially on the base, and / or at least two clamping devices are arranged opposite each other on the base. The clamping device enables preferred additional structural reinforcement of the base. The at least one clamping device is designed, for example, as a metal strip, fiber reinforcement strip, and / or other clamping device. The clamping device is preferably designed circumferentially on the base or along two opposite sides of the base. Preferably, the base includes two clamping devices along two opposite wall sections of the base in the stacking direction of the individual units. The at least one clamping device is preferably designed to be at least partially integrated into the base. The at least one clamping device is at least partially arranged circumferentially on and / or within the base. This design of the housing assembly is particularly advantageous because it enables particularly simple reception of individual units for storing electrical energy for motor vehicles, especially where the tension of the individual units and the reliable stability of the housing assembly are advantageously ensured by the at least one clamping device.

[0028] According to a preferred improvement of the invention, the housing assembly may include at least one base device on the outer side of the base body for securing and / or retaining the housing assembly, particularly wherein the at least one base device is designed at least partially circumferentially on the outer side. The base device is designed, for example, as a protrusion on the base body, particularly a circumferential protrusion. The base device advantageously enables the housing assembly to be secured and / or retained inside the vehicle and / or during the assembly or disassembly of the individual unit. The base device is preferably designed as a single piece, material-locking, and / or integral with the base body. Such a housing assembly is particularly advantageous because it allows for particularly simple reception of the individual unit for storing electrical energy for the vehicle, particularly wherein the tension of the individual unit and the reliable stability of the housing assembly are advantageously ensured by the at least one base device.

[0029] According to a preferred improvement of the invention, the at least two opposing main ribs in the housing assembly may comprise at least two vertical ribs and / or at least two horizontal ribs. The main ribs are preferably designed over a large area on the corresponding wall sections of the housing assembly. Preferably, the main ribs comprise at least 50%, preferably at least 60%, at least 70%, or at least 80% of the corresponding wall sections of the housing assembly. To advantageously structurally reinforce the housing assembly, the main ribs each comprise at least two vertical ribs and / or at least two horizontal ribs. Preferably, the main ribs each comprise a plurality of vertical ribs and a plurality of horizontal ribs. This design of the housing assembly is particularly advantageous because it enables particularly simple reception of individual units for storing electrical energy for motor vehicles, and in particular, the tension of the individual units and the reliable stability of the housing assembly are advantageously ensured by the design of the at least two opposing main ribs.

[0030] According to a second aspect of the invention, this task is accomplished by an energy storage system comprising at least one housing device according to the first aspect and at least one individual device. In the described energy storage system, all the advantages already described with respect to the housing device according to the first aspect of the invention are obtained.

[0031] According to a third aspect of the invention, this task is accomplished by a motor vehicle having at least one energy storage system according to the second aspect. In the described motor vehicle, all the advantages already described for the energy storage system according to the second aspect and / or for the housing device according to the first aspect of the invention are obtained. Preferably, the energy storage system is designed to supply electrical energy to the drive unit of the motor vehicle.

[0032] According to a fourth aspect of the invention, this task is solved by a manufacturing method for a storage device system. The manufacturing method includes:

[0033] —Providing a housing assembly for receiving electrical energy stored in a motor vehicle from at least two individual units of an energy storage system, wherein the housing assembly includes a base and a receiving volume.

[0034] —Compress the at least two individual units using a tool.

[0035] —The compressed at least two individual devices are inserted into the receiving volume, and

[0036] —The energy storage system is manufactured by returning the moving tool and thereby expanding the at least two individual units in the housing device.

[0037] The energy storage system is preferably designed according to the second aspect. In the described manufacturing method, it is therefore preferable to obtain all the advantages already described for the energy storage system according to the second aspect and / or for the housing device according to the third aspect of the invention.

[0038] The method steps described above and below may preferably (unless otherwise explicitly stated) be performed individually, together, once, multiple times, in parallel time, and / or sequentially in any order. Naming them, for example, "first method step" and "second method step," does not establish temporal order and / or priority. A preferred order of method steps is specified, in which these method steps are performed in the listed order.

[0039] Compression of the monomer device, within the scope of this invention, is preferably understood as compression of the intermediate material between the monomer devices (e.g., foam padding between monomer devices). The monomer device preferably includes a planar spring device between the monomer devices, for example, in the form of the aforementioned intermediate material, to enable compression of the monomer device.

[0040] Preferably, the provided housing device is manufactured using a micro-foaming injection molding method. The manufacturing method according to the invention enables a highly rigid accumulator system through the main ribs of the housing device. Individual devices are compressed toward each other using a tool to allow insertion into the receiving volume. Tool clearances in the base allow the tool to move into the base for placement of the individual devices. The return movement of the tool, and thereby the expansion of the at least two individual devices within the housing device, establishes a favorable frictional and / or force-locked connection between the individual devices within the housing device. Attached Figure Description

[0041] The housing device, energy storage system, motor vehicle, and manufacturing method according to the present invention are described in more detail below with reference to the accompanying drawings.

[0042] The following are schematically illustrated:

[0043] Figure 1 A perspective view shows the housing assembly with four individual units.

[0044] Figure 2 The housing assembly with three individual units is shown in a sectional side view.

[0045] Figure 3 A functional view shows a motor vehicle with an energy storage system, which has a housing assembly and three individual units.

[0046] Figure 4 A manufacturing method is illustrated using a flowchart. Detailed Implementation

[0047] Components with the same function and mode of operation Figures 1 to 4 The same reference numerals are used for each of the attached figures.

[0048] exist Figure 1 The diagram schematically illustrates a housing assembly 10 with four individual units 110 in a perspective view. The housing assembly 10, together with the individual units 110, constitutes an energy storage system 100. The housing assembly 10 has a base 20 and a receiving volume 90 for receiving the individual units 110 within the base 20. The base 20 includes an inner side 22 facing the receiving volume 90 and an outer side 24 facing away from the receiving volume 90. The base 20 has two opposing main ribs 50 on the outer side 24 for structurally reinforcing the housing assembly 10. The base 20 has two tool openings 40 on the inner side 22 for each of the opposing main ribs 50, wherein the four tool openings 40 are designed to engage tools to collectively introduce the individual units 110 into the receiving volume 90. The base 20, the two opposing main ribs 50, and the four tool openings 40 are designed as a single piece. The housing assembly 10 includes a stacking direction 112 for stacking individual units 110 to be received, wherein the two main rib units 50 are formed by a base 20 opposite each other along the stacking direction 112. The base 20 includes three, or a total of six, opposite unit abutment surfaces 26 on each side of its inner side 22, wherein the six opposite unit abutment surfaces 26 are designed without a shaped bevel. The base 20 is rectangular and includes four wall sections 30, a bottom section 32 (not shown), and an open cover interface 34. The two opposite main rib units 50 are formed by two opposite wall sections 30. The base 20 has a wall thickness 36, and the two opposite main rib units 50 have a depth 38. The depth 38 has a factor of 9 relative to the wall thickness 36. The six tool clearances 40 are arranged on the inner side 22 opposite to one of the two opposite main rib units 50. The substrate 20 includes two secondary rib devices 52 on two wall sections 30 along the stacking direction 112. The secondary rib devices 52 are designed to be flatter than the primary rib devices 50. The housing device 10, here on the substrate 20, is manufactured by injection molding, specifically microfoam injection molding, and includes injected gas pores. The housing device 10 includes two clamping devices 70, of which only one is shown in dashed lines. The clamping devices 70 are arranged opposite each other in the substrate 20, here on the wall sections 30 along the stacking direction 112. The substrate 20 includes a base device 60 on the outer side 24 for securing and holding the housing device 10. The base device 60 is designed to surround the outer side 24. The two opposite primary rib devices 50 include three vertical ribs and four horizontal ribs.

[0049] exist Figure 2 The diagram schematically shows a sectional side view of a housing assembly 10 with three individual units 110. The housing assembly 10, together with the individual units 110, constitutes an energy storage system 100. The housing assembly 10 has a base 20 and a receiving volume 90 for receiving the individual units 110 within the base 20. The base 20 includes an inner side 22 facing the receiving volume 90 and an outer side 24 facing away from the receiving volume 90. The base 20 has two opposing main ribs 50 on the outer side 24 for structurally reinforcing the housing assembly 10. The base 20 has two tool openings 40 on the inner side 22 for each of the opposing main ribs 50, wherein four tool openings 40 are designed to engage tools to collectively introduce the individual units 110 into the receiving volume 90. The base 20, the two opposing main ribs 50, and the four tool openings 40 are designed as a single piece. The housing assembly 10 includes a stacking direction 112 for stacking individual units 110 to be received, wherein the two main rib units 50 are formed by a base 20 opposite each other along the stacking direction 112. The base 20 includes two opposite unit abutment surfaces 26 on its inner side 22, wherein the two opposite unit abutment surfaces 26 are designed without a shaped bevel. The base 20 is rectangular and includes four wall sections 30, a bottom section 32, and an open cover interface 34. The base 20 has a wall thickness 36, and the two opposite main rib units 50 have a depth 38. The depth 38 has a factor of 3 relative to the wall thickness 36. The housing assembly 10 has two opposite centering devices 80 on its inner side 22 for centering the individual unit 110 within a receiving volume 90 (orthogonal to the stacking direction 112). Only one centering device 80 is shown in this cross-sectional view. The steps for compressing 204 and inserting 206 are indicated by arrows.

[0050] exist Figure 3 The diagram schematically shows a motor vehicle 150 with an energy storage system 100, which has a housing assembly 10 and three individual units 110, in a functional view.

[0051] Figure 4 A flowchart illustrating a design scheme of manufacturing method 200 according to the present invention is shown schematically. For better overview, in Figure 4Only the reference numerals for the method steps are given in the accompanying drawings. The manufacturing method 200 includes, in a first method step, providing a housing device 10 for receiving three individual units 110 of the energy storage system 100 for storing electrical energy for a motor vehicle 150, wherein the housing device 10 includes a base 20 and a receiving volume 90. The manufacturing method 200 includes, in another method step, compressing the three individual units 110 by a tool 204. The manufacturing method 200 includes, in another method step, inserting the compressed three individual units 110 into the receiving volume 90 206. The manufacturing method 200 includes, in another method step, manufacturing the energy storage system 100 208 by returning the moving tool and thereby expanding the three individual units 110 within the housing device 10.

[0052] List of reference numerals

[0053] 10. Housing assembly

[0054] 20 matrix

[0055] 22 Inner side of the matrix

[0056] 24 outer side of the matrix

[0057] 26 single-piece backing surface

[0058] 30 wall section

[0059] 32 bottom section

[0060] 34-cover interface

[0061] 36 wall thickness

[0062] 38 depth

[0063] 40 Tool blanking section

[0064] 50 main rib assembly

[0065] 52 secondary rib devices

[0066] 60 base device

[0067] 70 clamping device

[0068] 80 centering device

[0069] 90 receiving volume

[0070] 100 accumulator system

[0071] 110 unit

[0072] 112 stacking direction

[0073] 150 motor vehicles

[0074] 200 Manufacturing Method

[0075] 202 provides

[0076] 204 compression

[0077] 206 insertions

[0078] 208 Manufacturing

Claims

1. A housing device (10) for receiving a single-unit device (110) for storing electrical energy for a motor vehicle (150), the housing device (10) having a base (20) and a receiving volume (90) for receiving the single-unit device (110) at least partially within the base (20), wherein, The base (20) includes at least one inner side (22) facing the receiving volume (90) and at least one outer side (24) facing away from the receiving volume (90). The base (20) has at least two opposing main ribs (50) on the at least one outer side (24) for structurally reinforcing the housing device (10). The base (20) has at least one tool recess (40) on the at least one inner side (22) for each of the at least two opposing main ribs (50). The at least two tool recesses (40) are designed to engage tools to jointly introduce the single device (110) into the receiving volume (90). The base (20), the at least two opposing main ribs (50) and the at least two tool recesses (40) are designed as a single piece.

2. The housing device (10) according to claim 1, characterized in that, The housing assembly (10) includes a stacking direction (112) for stacking individual units (110) to be received, wherein the at least two main rib units (50) are formed opposite to each other by the base (20) along the stacking direction (112).

3. The housing device (10) according to any one of the preceding claims, characterized in that, The substrate (20) includes at least two opposing monolithic abutment surfaces (26) on the inner side (22), the at least two opposing monolithic abutment surfaces (26) being designed without a shaped slope; and / or the housing device (10) includes an abutment panel.

4. The housing device (10) according to any one of the preceding claims, characterized in that, The base (20) is designed to be rectangular and / or includes at least four wall sections (30), a bottom section (32) and an open cover interface (34). In particular, the at least two opposing main rib devices (50) are composed of two opposing wall sections (30).

5. The housing device (10) according to any one of the preceding claims, characterized in that, The substrate (20) has a wall thickness (36), and the at least two opposing main rib devices (50) have a depth (38) having a factor of at least 3, preferably at least 5, at least 7 or at least 10 relative to the wall thickness (36).

6. The housing device (10) according to any one of the preceding claims, characterized in that, The housing device (10) has at least two opposing centering devices (80) on at least one inner side (22) for centering the individual device (110) in the receiving volume (90), particularly orthogonal to the stacking direction (112).

7. The housing device (10) according to any one of the preceding claims, characterized in that, The at least two tool clearances (40) are respectively arranged on the at least one inner side (22) opposite to one of the at least two opposing main rib devices (50).

8. The housing device (10) according to any one of the preceding claims, characterized in that, The substrate (20) includes at least one secondary rib device (52) designed to be flatter than the primary rib device (50).

9. The housing device (10) according to any one of the preceding claims, characterized in that, The housing device (10), and especially the substrate (20), is manufactured by means of injection molding, especially micro-foaming injection molding, and / or the housing device (10), and especially the substrate (20), includes injected gas pores.

10. The housing device (10) according to any one of the preceding claims, characterized in that, The housing device (10) includes at least one clamping device (70) arranged at least partially around the base (20); and / or at least two clamping devices (70) arranged opposite each other on the base (20).

11. The housing device (10) according to any one of the preceding claims, characterized in that, The base (20) includes at least one base device (60) on the outer side (24) for fixing and / or retaining the housing device (10), and in particular, the at least one base device (60) is designed at least partially circumferentially on the outer side (24).

12. The housing device (10) according to any one of the preceding claims, characterized in that, The at least two opposing main ribs (50) include at least two vertical ribs and / or at least two horizontal ribs.

13. An energy storage system (100) comprising at least one housing device (10) according to any one of the preceding claims and at least one unit device (110).

14. A motor vehicle (150) comprising at least one energy storage system (100) according to claim 13.

15. A manufacturing method (200) for manufacturing an energy storage system (100), wherein the energy storage system is particularly the energy storage system according to claim 13, wherein, The manufacturing method (200) includes: —Provides a housing device (10) for receiving at least two individual units (110) of an energy storage system (100) for storing electrical energy for a motor vehicle (150), the housing device (10) comprising a base (20) and a receiving volume (90). — Compress the at least two individual devices (110) by means of a tool (204). —The compressed at least two individual devices (110) are inserted (206) into the receiving volume (90), and —The energy storage system (100) is manufactured (208) by returning the moving tool and thereby expanding the at least two individual units (110) in the housing device (10).

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