Battery shells, traction batteries, and automobiles

Abstract

To provide a battery shell, a traction battery, and a vehicle.SOLUTION: A battery shell, specifically, a battery shell of a traction battery is formed of plastic. The battery shell includes an attachment system for attaching the battery shell and a component. The attachment system includes a guide band material, an inner side shape, and an attachment member. The guide band material is bonded to the battery shell in a substance bonding type and / or a shape bonding type. The inner side shape is guided by the guide band material, and the attachment member is set up for achieving the bonding between the component and the inner side shape.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a battery shell, a traction battery, and a motor vehicle.

Background Art

[0002] A battery, particularly a traction battery for energy storage in motor vehicles, is composed of a large number of components. Herein, the battery housing is particularly given the role of mounting and protecting battery modules and other necessary components.

[0003] In order to receive and derive generated inertial forces, it is of great significance that battery modules and other components are reliably fixed to the battery housing under all operating conditions and throughout the service life of the battery.

Summary of the Invention

Problem to be Solved by the Invention

[0004] An object of the present invention is to provide an improved or alternative solution compared with the prior art.

Means for Solving the Problem

[0005] The problem underlying the present invention is solved by a battery shell having the features of claim 1. Preferred embodiments of the battery shell are defined in the dependent claims.

[0006] Specifically, the problems addressed by the present invention are solved by a battery shell, particularly a battery shell for a traction battery, the battery shell being molded from plastic, the battery shell having a mounting system for attaching the battery shell to a component, the mounting system having a guide strip, an inner profile, and a mounting member, the guide strip being bonded to the battery shell by material and / or shape, the inner profile being guided by the guide strip, and the mounting member being set up to establish a bond between the component and the inner profile. The concepts related to this will be explained next:

[0007] First and foremost, it should be explicitly stated that within the framework of this patent application, indefinite articles and numerals such as "ein" and "zwei" should normally be understood as meaning "at least," that is, "at least one...", "at least two...", etc., unless it is clearly evident from the context in each instance that it could mean "just one...", "just two...", etc., or unless it is obvious or technically necessary for a person skilled in the art.

[0008] Within the context of this patent application, the expression "in particular" should always be understood to mean that this expression introduces an optional, preferred constituent element. This expression should not be understood as "in more detail" or "that is to say."

[0009] "Battery shell" refers to the housing component of a battery. Specifically, a battery shell is set up to house the components of a battery, thereby protecting and / or mounting these components within the battery shell.

[0010] A "traction battery" is understood to be an energy storage device, particularly an energy storage device for electric current. A traction battery is preferably suitable for integration into an electric vehicle to power it.

[0011] A "mounting system" is understood to be a system for attaching at least one component to at least one other component. Preferably, the mounting system itself may have multiple components, particularly guide strips, internal profiles, and at least one mounting member.

[0012] In a preferred embodiment, the mounting system may be set up to connect at least one component to the battery shell.

[0013] In particular, it is conceivable that the battery module can be coupled to the battery shell by a mounting system. Furthermore, the control module and / or cooling system and / or electrical wiring and / or similar components can also be coupled to the battery shell by a mounting system.

[0014] Alternatively, the battery shell could be attached to the vehicle using a mounting system.

[0015] A "guide strip" is understood to be a component set up to guide the internal profile.

[0016] The guide strip material is preferably bonded to the battery shell by a material bond or a shape bond, and is particularly integrated into the battery shell. The guide strip material is preferably bonded to the battery shell, which is made of plastic, so that when a force or torque acts on the guide strip material, it can be transmitted to the battery shell.

[0017] Optionally, the guide strip material has a cross-section that is constant along the longitudinal direction of the guide strip material.

[0018] The guide strip material is preferably made of metal, and more preferably of steel, aluminum, or copper.

[0019] As an alternative, the guide strip material is mainly made of plastic, particularly polyamide. The guide strip material is preferably made of polymer and textile fabric, particularly fiber reinforced material and / or long fiber reinforced material and / or endless fiber reinforced material.

[0020] The guide strip material is preferably manufactured by extrusion molding, pultrusion, extrusion, or rolling.

[0021] The term "internal profile" is understood to be a rod-shaped component that is preferably molded to be inserted into the guide strip in the direction of the guide strip's longitudinal extension.

[0022] The inner profile preferably has a cross-section that is mainly constant along the longitudinal direction of the inner profile.

[0023] In a preferred embodiment, the cross-section of the inner profile and the cross-section of the guide strip, which is intended to allow the inner profile to be inserted into it, correspond so that no frictional contact occurs between the inner profile and the guide strip, unless the battery shell and some component are coupled to it, at least via the mounting system.

[0024] The inner profile is preferably made of metal, particularly aluminum, steel, or copper. In an alternative embodiment, the inner profile may also be made of plastic.

[0025] The inner profile is preferably manufactured by extrusion, pultrusion, extrusion, or rolling.

[0026] The term "mounting member" is understood to mean a member provided for mounting components, and is particularly understood to include screws, threaded inserts, nuts, washers, threaded bolts, weld nuts, weld bolts, locking hooks, clips, cable ties, wire fixtures, cable fixtures, Christmas tree clips, and the like.

[0027] For the mounting member, specifically, a threaded sleeve having a tapered portion is envisaged, which preferably enables self-centering assembly of respective components.

[0028] As used herein, the term "component" is understood to mean a constituent part as an individual piece or a module composed of a plurality of parts, and is particularly understood to include battery modules, control modules, cooling devices, electrical lines, and the like. Furthermore, a component may also mean a frame structure, by which the battery shell can be coupled to a motor vehicle. That is, accordingly, the mounting system is preferably provided for coupling components inside the battery shell and / or outside the battery shell to the battery shell.

[0029] In the prior art, traction batteries having a battery shell made of metal are known. Even the battery shell alone already has a large number of components with a relatively high manufacturing depth. Because metal materials have relatively low elasticity, it is obvious that battery shells according to the prior art must have high requirements regarding the shape and position tolerances of individual components. Moreover, metal materials can only be deformed within relatively narrow limits, which means that traction batteries according to the prior art generally have a large number of parts, and consequently the associated handling costs during manufacturing are also relatively high.

[0030] Overall, this results in high per-unit costs for the traction battery, as well as high investment costs for the required manufacturing equipment.

[0031] Unlike conventional technologies, this proposal suggests a battery shell molded from plastic.

[0032] This dramatically reduces the number of components required for the battery shell, thereby lowering the unit cost of the battery shell and the investment cost of manufacturing the traction battery. Furthermore, it reduces handling costs when manufacturing the traction battery, and consequently, the cycle time when manufacturing the battery shell can also be reduced.

[0033] Furthermore, it is specifically proposed that the battery housing has a mounting system comprising at least a guide strip, an internal profile, and a mounting member.

[0034] In this context, it is proposed that the guide strip material be bonded to the battery shell in a material-bonding and / or shape-bonding manner, thereby allowing the guide strip material, which serves to introduce loads to the battery shell, particularly in the form of longitudinal and / or lateral accelerations received in the mounting system, to be directly bonded to the battery shell while it is being manufactured from plastic.

[0035] This allows for further reductions in manufacturing costs, particularly through a reduction in the number of insertable components and the resulting decrease in cycle time and automation costs, while also ensuring a secure connection between the mounting system and the battery shell.

[0036] Furthermore, the battery shell can be reinforced by shape-bonding or material-bonding to the guide profile, thereby enabling the load introduced into the mounting system to be transmitted to the battery shell well and evenly, and reinforcing the battery shell itself, thereby favorably reducing any possible distortion of the battery shell.

[0037] In an optional embodiment, the mechanical fixation of the guide strip material in the battery housing can be improved by using an adhesion promoter between the guide strip material and the battery shell.

[0038] In another optional embodiment, the mechanical anchoring of the guide strip to the battery housing can be improved by annealing the guide strip before material-bonding or shape-bonding with the battery housing.

[0039] In another optional embodiment, the mechanical anchoring of the guide strip in the battery housing can be improved by pre-structuring the contact surfaces of the guide strip and / or the battery shell at their respective surfaces.

[0040] In this case, it is proposed that the contact surface of the guide strip material, that is, the surface that is intended to be shape-joined with the battery shell, be pre-structured.

[0041] In one further embodiment, the battery shell may be prestructured at the contact surface with the guide strip, i.e., the surface where it is intended to be shape-jointed with the guide strip.

[0042] In one embodiment, both the contact surface of the guide strip and the contact surface of the battery shell may be pre-structured.

[0043] "Pre-structured" is understood to mean that the battery shell and / or guide strip material is pre-treated in a manner that imparts structure, or already has pre-structured, thereby the contact surface as a whole is wider than in the case of a flatly configured contact surface of the guide strip material and / or battery shell which are otherwise similarly configured.

[0044] The battery shell based on the constituent elements of claim 1 also has the advantage of realizing a battery shell having an uninterrupted plastic wall portion that can guarantee the airtightness of the battery shell.

[0045] Optionally, the battery shell may be manufactured by injection molding, press molding, or blow molding. The concepts related to this will be explained next:

[0046] "Injection molding" is understood as a molding method in which the material to be processed, especially plastics, is liquefied by an injection molding machine and poured under pressure into a mold, or injection molding die. Inside the injection molding die, the material transitions back to a solid state through cooling and / or crosslinking reactions, and can be removed as a component after the die is opened.

[0047] "Press molding" is understood as a molding method in which the molding material is injected into the cavity of an attached press die in the first step, and the press die is closed in the second step, particularly using an injection piston. The closing of the press die imparts the molding material to the shape set by the press die. It is preferable that the press die be annealed. Regarding the molding material, in this context, thermoplastic or thermosetting materials are particularly assumed, which may be crosslinked together with fibrous materials, particularly glass fibers, carbon fibers, aramid fibers, etc. Press molding is also understood as a direct-to-last molding (D-LFT) method in which the fibrous material is drawn into an extruder, where it is impregnated with a matrix polymer that is already molten, particularly with a thermoplastic or thermosetting resin, transferred to an injection piston, and subsequently fed into the press die as the molding material.

[0048] "Blow molding" is understood to be a method in which a pre-molded body is first created from a molding material, particularly by injection molding or extrusion from a nozzle, and then this is placed into a blow molding die, where it is molded by the injection of a fluid.

[0049] In this way, the battery shell described in claim 1 has the advantage of being able to be manufactured using established methods, thereby reducing costs and minimizing process risks in the manufacturing process.

[0050] In a preferred embodiment, the guide strip material has a metal content of at least 90% by weight, preferably at least 95% by weight, and especially preferably at least 98% by weight. The concepts related to this will be explained next:

[0051] "Metal" means any substance, in solid and / or liquid form, that possesses four characteristic metallic material properties, especially alloys: conductivity, thermal conductivity, ductility, and metallic luster. It is preferable to understand a metal as steel, aluminum, or copper.

[0052] Optionally, the metal content of the guide strip is at least 60% by weight of the guide strip, preferably at least 70% by weight of the guide strip, and especially preferably at least 80% by weight of the guide strip.

[0053] In particular, it is proposed that the guide strip material be substantially composed of a material having high surface hardness, especially Rockwell hardness, so that frictional bonding generated by the mounting member between the contact surface of the component and the corresponding guide strip material does not lead to damage to the guide strip material.

[0054] In particular, it is proposed that the guide strip material can be extruded from a metal material, preferably aluminum. In this way, the cross-section of the guide strip material having a relatively complex geometry can be manufactured relatively easily. This allows for further adaptation of the cross-section of the guide strip material to the requirements of the mounting system. In particular, by extruding the guide strip material, it is possible to realize a guide strip material having a cross-section that not only has an undercut in the first region for a shape-joint connection between the battery shell and the guide strip material, but also an undercut in the second region for a shape-joint connection between the inner profile and the guide strip material.

[0055] Furthermore, it is also conceivable that guide strips made substantially of metal be used as grounding paths to the vehicle ground for components that are at least indirectly connected to the guide strips.

[0056] In this way, the guide strip material can be realized from a rigid material that does not tend to undergo plastic deformation due to friction bonding and is simultaneously a good electrical conductor, which has the advantage of being usable as a grounding path. Furthermore, the guide strip material can be extruded in this way, which has the advantage of enabling complex functional cross-sections for the guide strip material.

[0057] To be clear, the above values ​​for the metal content of the guide strip should not be understood as strict limits. Rather, they can be exceeded or fallen to an extent that can be judged by an expert without departing from the aspects of the present invention described herein. In simple terms, the values ​​are intended to provide a clue to the breadth of the proposed range for the metal content of the guide strip.

[0058] In an optional embodiment, the guide strip material has a proportion of at least 90% by weight of plastic, preferably at least 95% by weight of plastic, and especially preferably at least 98% by weight of plastic. The concepts related to this will be explained next:

[0059] "Plastics" are generally understood to be materials composed primarily of macromolecules. Specifically, plastics are understood to refer to thermoplastic resins, thermosetting resins, or elastomers.

[0060] Optionally, the plastic content of the guide strip material is at least 60% by weight of the guide strip material, preferably at least 70% by weight of the guide strip material, and especially preferably at least 80% by weight of the guide strip material.

[0061] Here, as an alternative, a guide strip material made primarily of plastic, particularly polyamide, is proposed. In this case, it is also preferable to consider a guide strip material that has a fiber content in addition to polymer.

[0062] Furthermore, it is assumed that the guide strip material proposed here is made of a plastic compatible with the plastic from which the battery shell is molded, thereby enabling material bonding between the battery shell and the guide strip material.

[0063] The use of plastic in this way offers several advantages: it allows for the creation of relatively lightweight guide strips with complex functional cross-sections that can be manufactured using established methods. Furthermore, it indirectly enables the realization of battery shells that transition to material bonding for the guide strips.

[0064] To be clear, the above values ​​regarding the plastic content of the guide strip material should not be understood as strict limits. Rather, they can be exceeded or fallen to an extent that can be judged by an expert without departing from the embodiments of the present invention described herein. In simple terms, the values ​​are intended to provide a clue to the breadth of the proposed range for the plastic content of the guide strip material.

[0065] The inner profile preferably has a metal content of at least 90% by weight, more preferably at least 95% by weight, and especially preferably at least 98% by weight.

[0066] Optionally, the metal content of the inner profile is at least 60% by weight of the inner profile, preferably at least 70% by weight of the inner profile, and especially preferably at least 80% by weight of the inner profile.

[0067] Specifically, an internal profile is proposed here that is substantially made of metal, particularly steel, aluminum, or copper.

[0068] Thus, established manufacturing methods, particularly by extrusion and rolling, offer the advantage of easily producing internal profiles. Such internal profiles are low-cost and possess high hardness, thereby effectively transmitting force introduced pointwise through mounting members to the structure of the mounting system, and consequently indirectly to the battery shell.

[0069] Furthermore, this method offers the advantage of allowing the internal profile to be used as a grounding path for components mounted by the mounting system.

[0070] To be clear, the above values ​​for the metal content of the inner profile should not be understood as strict limits. Rather, they can be exceeded or fallen to an extent that can be judged by an expert without departing from the aspects of the present invention described herein. In simple terms, the values ​​are intended to provide a clue to the breadth of the proposed range for the metal content of the inner profile.

[0071] Optionally, at least one mounting member is press-fitted into the inner profile. The concepts related to this will be explained next:

[0072] "Press-fitting" refers to a joining method in which the joining parts deform substantially only elastically when joined, and unintended loosening of the joining parts and mating parts after joining is prevented by friction bonding. Preferably, longitudinal and lateral forces can be transmitted between the joining parts and mating parts via friction bonding.

[0073] Specifically, this involves a threaded sleeve that is press-fitted into the inner profile, thereby ensuring that the mounting member, particularly the threaded sleeve, is securely and irrevocably connected to the inner profile. Furthermore, this method offers the advantage of effectively transmitting force, especially force containing high dynamic components, to the inner profile, even when applied to the mounting member in a point-like manner.

[0074] In a preferred embodiment, the inner profile has at least one translational degree of freedom relative to the guide strip, preferably at least two translational degrees of freedom, and especially preferably three translational degrees of freedom. The concepts related to this will be explained next:

[0075] "Translational degrees of freedom" refers to the degree of freedom of translational motion of an object in space in one direction.

[0076] Specifically, it is proposed that, in particular, there is no frictional joint between the guide strip and the inner profile unless a force is introduced to the inner profile, at least via the corresponding mounting member.

[0077] This allows the inner profile to be easily inserted into the guide strip.

[0078] Furthermore, it is proposed that the inner profile be supported by the guide strip with at least one translational degree of freedom, preferably two, and especially preferably three. This creates mobility between the inner profile and the guide strip that can be used to correct tolerances between the component and the battery shell when assembling the component, thereby reducing the assembly time of the traction battery.

[0079] This offers the advantage of simplifying the assembly of the traction battery and increasing the required shape and position tolerances for the battery shell, thereby reducing the manufacturing cost of the battery shell, which is molded from plastic.

[0080] One preferred embodiment can be realized by having an inner profile and / or guide strip material that has a conductive connection between the component and the vehicle ground. The concepts related to this will be explained next:

[0081] A "conductive joint" refers to any joint between two objects that can conduct electric current.

[0082] "Vehicle ground" refers to an object that conducts electric current and is assigned as the reference potential for all signal voltages and operating voltages.

[0083] This method offers the advantage of integrating functions, allowing the mounting system to handle the functions of fixing and grounding the components.

[0084] This approach has the advantage of reducing the number of components and shortening assembly time, which in turn leads to overall cost savings.

[0085] According to a second aspect of the present invention, a traction battery having a battery shell having the constituent elements of claim 1, particularly a traction battery for an automobile, solves the problem, and a preferred embodiment can be realized by a battery shell having the constituent elements of a claim dependent on claim 1.

[0086] Naturally, the advantages of the battery shell described above can be directly applied to traction batteries of this type, especially traction batteries for automobiles.

[0087] To be explicitly stated, the objects of the second embodiment can preferably be combined with the objects of each of the embodiments of the present invention described above, either individually or cumulatively in any combination.

[0088] According to a third aspect of the present invention, an automobile having a battery shell having the constituent elements of claim 1 solves the problem, and a preferred embodiment can be realized by a battery shell having the constituent elements of a claim dependent on claim 1. The concepts related to this will be explained next:

[0089] "Automobile" means a vehicle driven by an engine. Preferably, automobiles do not run on rails, or at least do not run on tracks permanently.

[0090] Naturally, the advantages of the battery shell described above can be directly applied to vehicles that have this type of battery shell.

[0091] To be explicitly stated, the objects of the third embodiment can preferably be combined with the objects of each of the embodiments of the present invention described above, either individually or cumulatively in any combination.

[0092] Other advantages, specific aspects, and constituent elements of the present invention will become apparent from the embodiments described below. These are shown individually: [Brief explanation of the drawing]

[0093] [Figure 1] This diagram schematically shows the battery shell of a conventional traction battery, which is substantially made of metal. [Figure 2] This is a schematic detailed diagram showing a battery shell based on conventional technology. [Figure 3] A schematic diagram shows a battery shell made of plastic with a mounting system. [Figure 4] A schematic diagram shows a mounting system for a plastic battery shell, where the mounting system is located near the bottom. [Figure 5] A schematic diagram shows a mounting system for a battery shell made of plastic, where the mounting system is installed at an even higher position. [Figure 6] The mounting system is schematically shown in a cross-sectional view. [Figure 7] A schematic diagram of the mounting system integrated into the battery shell is shown. [Figure 8] A schematic diagram of another detailed view of the mounting system integrated into the battery shell is shown. [Modes for carrying out the invention]

[0094] In the following description, the same reference numerals represent the same component or component, and therefore, a description of one component given in relation to one drawing also applies to other drawings, thus avoiding repetition. Furthermore, individual component elements described in relation to one embodiment are also individually applicable to other embodiments.

[0095] The battery shell 10 of the conventional traction battery (unsigned) shown in Figure 1 is made of substantially metal.

[0096] The battery shell 10 is set up to mount and protect the component 30. Secure fastening of the component 30 to the battery shell 10 is of great importance under all operating conditions and throughout the lifespan of the traction battery (not shown), particularly to absorb and derive inertial forces that may occur when longitudinal and / or lateral acceleration occurs in a vehicle (not shown) equipped with a traction battery (not signed). This is especially true for component 30, which has a particularly high weight.

[0097] The components 30 of the traction battery (not indicated) are attached to the battery shell 10 in Figure 1 by numerous mounting members (not indicated), particularly by screws. Due to the large number of components 30 to be attached, a large number of mounting members (not indicated) are required to attach the battery shell 10 to the components 30.

[0098] The traction battery (not indicated) in Figure 2 is essentially constructed so that the component 30 is attached to the battery shell 10 by mounting members 26 in the form of screws. Here, the battery housing 10 is constructed substantially from a metal frame structure, so that the mounting members 26 in the form of screws 26 are screwed into the metal frame (not indicated), and in particular into the lateral supports (not indicated) of the metal frame (not indicated).

[0099] In conventional solutions of this type, strict tolerances must be adhered to for each mounting component 26, resulting in high manufacturing costs that manifest as high investment costs and unit costs.

[0100] The battery shell 10 according to the present invention shown in Figure 3 is substantially molded from plastic. The plastic may be molded in a single layer or in multiple layers. In particular, the battery shell 10 may have a barrier layer (not shown).

[0101] The battery shell 10 in Figure 3 is preferably formed by injection molding, press molding, blow molding, or the like.

[0102] The battery shell 10 has a number of guide strips 22 set up for attaching components (not shown) to the battery shell 10.

[0103] The guide strip 22 is positioned on the lateral support (not indicated) and, consequently, higher than the bottom surface (not indicated) of the battery shell 10. The lateral support (not indicated) is also molded from plastic together with the battery shell 10. The elevated construction of the lateral support (not indicated) simplifies the assembly of components (not shown) and helps prevent the components (not shown) from sliding against the battery shell 10 when longitudinal and / or lateral forces are generated.

[0104] In particular, it is assumed that the guide strip 22 is bonded to the battery shell 10 through shape bonding and / or material bonding. Shape bonding between the guide strip 22 and the battery shell 10 can be induced in particular by physical interlocking between the plastic from which the battery shell 10 is made and the guide strip 22. In particular, the guide strip 22 may have undercuts (not shown) for this purpose.

[0105] The mounting system 20 in Figure 4 is substantially composed of a guide strip 22 that is joined to the battery shell 10 by shape bonding, an inner profile 24, and a plurality of mounting members 26.

[0106] The shape-joint between the guide strip 22 and the battery shell 10 is established by an undercut (unmarked) in the guide strip 22. Here, the undercut (unmarked) is molded in such a way that the plastic used to form the battery shell 10 can enter the area of ​​the guide strip 22 during the molding of the battery shell 10 and flow around the undercut (unmarked) of the guide strip 22. When the plastic hardens, a physical interlocking occurs between the battery shell 10 and the guide strip 22 in this way.

[0107] The plastic wall portion (not indicated) of the battery shell 10 is manufactured without interruption in the area of ​​the mounting system 20, thereby ensuring the airtightness of the battery shell 10.

[0108] The arrangement between the battery shell 10 and the mounting system 20 is designed so that the guide strip 22 is positioned near the bottom surface of the battery shell 10.

[0109] The inner profile 24 is preferably made of metal, but may be made of plastic as an alternative.

[0110] The inner profile 24 can be used as a grounding path as long as it is made of metal, thereby electrically connecting components (not shown) that are at least indirectly connected to each other to the automotive ground via the inner profile 24.

[0111] Alternatively, a guide strip 22 made of metal can also be used as a grounding path for a component (not shown).

[0112] The inner profile 24 is configured to be inserted into the guide strip in the longitudinal direction. Preferably, the spatial clearance between the inner profile 24 and the guide strip 22 is manufactured such that at least one translational degree of freedom 40, 42 is formed between the inner profile 24 and the guide strip 22. This prevents frictional joining between the inner profile 24 and the guide strip 22, and allows the inner profile 24 to slide inside the guide strip 22 in at least one direction.

[0113] In a preferred embodiment, the inner profile 24 has at least two translational degrees of freedom 40, 42 relative to the guide strip 22, and particularly preferably three translational degrees of freedom 40, 42, thereby allowing the inner profile 24 to move freely in at least two spatial directions, more preferably three spatial directions, within a limited range inside the guide strip 22, thereby preventing any frictional joints between the inner profile 24 and the guide strip 22 from being induced only by the coupling between the component (not shown) and the inner profile 24 and the resulting initial stress between the guide strip 22 and the inner profile 24, which is in particular by at least indirect screwing between the component (not shown) and the inner profile 24, preferably by screwing between the mounting member 26 and the component (not shown).

[0114] During the manufacturing of the battery shell 10, it may be intended that the inner profile 24 be inserted into the guide strip 22 before the battery shell 10 is molded from plastic.

[0115] The inner profile 24 may have one or more mounting members 26. The mounting member 26 is preferably a female thread (not shown) formed in the inner profile 24. The mounting member 26 is also preferably a threaded insert 26. The mounting member 26 is preferably press-fitted into the inner profile 24.

[0116] The mounting member 26 has a tapered section set up to center the mounting member 26 and the component (not shown), thereby simplifying the assembly of the traction battery (not shown), particularly at the connection point between the component (not shown) and the mounting member 26.

[0117] Preferably, the mounting member 26 has an undercut (not shown) set up to physically engage with the inner profile 24, particularly by a fixed connection with a component (not shown) indirectly attached together with the mounting member 26, and by the resulting initial stress between the mounting member 26 and the inner profile 24.

[0118] Such undercuts (not indicated) in the mounting member 26 can further result in the mounting member 26 being irrevocably coupled to the mounting system 20, in particular, as long as the inner profile 24 is not pulled out from the guide strip 22.

[0119] Overall, the mounting system 20 is set up to enable a secure and permanent coupling between the components (not shown) and the battery shell 10, and any tolerances (not shown) that may occur between the components (not shown) and the battery shell 10 can be compensated by the mounting system 20, in particular by the translational degrees of freedom 40, 42 between the guide strip 22 and the inner profile 24.

[0120] The mounting system 20 in Figure 5 is substantially composed of a guide strip 22 that is joined to the battery shell 10 by shape bonding, an inner profile 24, and a plurality of mounting members 26.

[0121] Unlike the guide strip 22 in Figure 4, the guide strip 22 in Figure 5 is positioned higher than the bottom surface (not indicated) of the battery shell 10.

[0122] The plastic of the battery shell 10 is made in multiple layers (unsigned), and in particular has a barrier layer (unsigned) set up to prevent the penetration of material from the battery shell to the periphery of the battery, or from the periphery of the battery to the battery.

[0123] The mounting system 20 in Figure 6 substantially comprises a guide strip 22 (shown in cross-section), an inner profile 24 (shown in cross-section), and a mounting member 26.

[0124] The mounting system 20 is connected to the battery shell 10 by a shape-matching between the battery shell 10 and the guide strip material 22.

[0125] The mounting member 26 and the component 30 have corresponding tapered sections (not indicated) that help center the component 30 and the mounting member 26, thereby simplifying the assembly of the component 30. To this end, the threaded sleeve 26 protrudes from the mounting surface (not indicated) on the upper surface (not indicated) of the guide strip 22, and is thus set up to fit into the component 30 in a shape-joint manner.

[0126] The mounting member 26 is preferably composed of a threaded sleeve 26 and a screw 26.

[0127] The mounting system 20 in Figure 7 is substantially composed of a guide strip 22, an inner profile 24, and a mounting member 26, which are joined to the battery shell 10 by shape bonding.

[0128] The mold (not shown) that imparts the shape to the battery shell 10 when it is molded from plastic is formed such that a transition region 14 is created between the wall portion (not indicated) of the battery shell 10 and the guide strip 22 at the end of the guide strip 22. This has the advantage of preventing plastic from entering the area (not indicated) of the mounting system 20 in which the inner profile 24 is guided by the guide strip 22 when the battery shell 10 is molded.

[0129] The mounting system 20 in Figure 8 is substantially composed of a guide strip 22, an inner profile 24, and a mounting member 26, which are joined to the battery shell 10 by shape bonding.

[0130] Before the battery shell 10 is molded, the guide strip 22 is closed laterally by the plug 16, so as the battery shell 10 is molded from plastic, plastic does not enter the area (not indicated) of the mounting system 20 where the inner profile 24 is guided by the guide strip 22.

[0131] The plug 16 is preferably made of a plastic compatible with the plastic of the battery shell 10, thereby enabling material bonding between the battery shell 10 and the plug 16 in the area of ​​the plug. [Additional note 1] A battery shell (10), more particularly a battery shell (10) for a traction battery, wherein the battery shell (10) is molded from plastic, and the battery shell (10) has a mounting system (20) for mounting the battery shell (10) and components (30), The mounting system (20) comprises a guide strip (22), an inner profile (24), and a mounting member (26), wherein the guide strip (22) is bonded to the battery shell (10) by material bonding and / or shape bonding, the inner profile (24) is guided by the guide strip (22), and the mounting member (26) is set up to establish a bond between the component (30) and the inner profile (24), characterized in that the battery shell. [Additional note 2] The battery shell (10) according to Appendix 1, characterized in that it is manufactured by injection molding, press molding, or blow molding. [Additional note 3] The battery shell (10) according to either one of Appendix 1 or 2, characterized in that the guide strip material (22) has a metal content of at least 90% by weight, preferably at least 95% by weight, and especially preferably at least 98% by weight. [Additional note 4] The battery shell (10) according to either one of Appendix 1 or 2, characterized in that the guide strip material (22) has a proportion of at least 90% by weight of plastic, preferably at least 95% by weight of plastic, and especially preferably at least 98% by weight of plastic. [Additional note 5] The battery shell (10) according to any one of appendices 1 to 4, characterized in that the inner profile (24) has a metal content of at least 90% by weight, preferably at least 95% by weight, and especially preferably at least 98% by weight. [Additional note 6] A battery shell (10) according to any one of appendices 1 to 5, characterized in that at least one of the mounting members (26) is press-fitted into the inner profile (24). [Additional note 7] The battery shell (10) according to any one of appendices 1 to 6, characterized in that the inner profile (24) has at least one translational degree of freedom (40, 42) with respect to the guide strip (22), preferably at least two translational degrees of freedom (40, 42), and especially preferably three translational degrees of freedom (40, 42). [Additional note 8] The battery shell (10) according to any one of the appendices 1 to 7, characterized in that the inner profile (24) and / or the guide strip (22) have a conductive coupling between the component (30) and the vehicle ground. [Additional note 9] A traction battery having a battery shell (10) as described in any one of the appendices 1 to 8, particularly a traction battery for automobiles. [Additional Note 10] A motor vehicle having a battery shell (10) as described in any one of the appendices 1 to 8. [Explanation of Symbols]

[0132] 10 Battery Shells 12 Fixing section 14. Transition Area 16 stoppers 20 Installation System 22 Guide strip 24 Inner profile 26 Mounting components 30 components 40 Translational degrees of freedom 42 Translational degrees of freedom

Claims

1. A battery shell (10) wherein the battery shell (10) is molded from plastic, and the battery shell (10) is provided with a mounting system (20) for attaching the battery shell (10) and components (30), The mounting system (20) comprises a guide strip (22), an inner profile (24), and a mounting member (26), wherein the guide strip (22) is coupled to the battery shell (10) in a shape-joint manner, the inner profile (24) is guided by the guide strip (22), and the mounting member (26) is set up to establish a connection between the component (30) and the inner profile (24). A battery shell characterized in that the inner profile (24) has at least one translational degree of freedom (40, 42) relative to the guide strip (22).

2. The battery shell (10) according to claim 1, characterized in that the guide strip material (22) has a metal content of at least 90% by weight.

3. The battery shell (10) according to claim 1, characterized in that the guide strip material (22) has a proportion of at least 90% by weight of plastic.

4. The battery shell (10) according to any one of claims 1 to 3, characterized in that the inner profile (24) has a metal content of at least 90% by weight.

5. The battery shell (10) according to any one of claims 1 to 4, characterized in that at least one of the mounting members (26) is press-fitted into the inner profile (24).

6. The battery shell (10) according to any one of claims 1 to 5, characterized in that the inner profile (24) and / or the guide strip (22) have a conductive coupling between the component (30) and the vehicle ground.

7. A traction battery having a battery shell (10) according to any one of claims 1 to 6.

8. An automobile having a battery shell (10) according to any one of claims 1 to 6.

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