Adapter arrangement for electrical connections of a drive energy storage system

Abstract

The present disclosure relates to an adapter arrangement (200) for electrical connections (130A, 130B) of a drive energy storage device (100), comprising: - a first adapter unit (210) having a first receiving area (AB1) for an electrical connection (130A, 130B), wherein at least one first sealing element (201) is arranged on an inner wall (212) of the first receiving area (AB1), which is configured to seal an area between the inner wall (212) of the first receiving area (AB1) and the electrical connection (130A, 130B); and - a second adapter unit (220) having a second receiving area (AB2) for the first adapter unit (210), wherein at least one second sealing element (202) can be arranged between an inner wall (222) of the second receiving area (AB2) and the first adapter unit (210) to seal an area between the inner wall (222) of the second receiving area (AB2) and an outer wall (214) of the first adapter unit (210), - wherein the adapter arrangement (200) can be inserted into a housing opening of a housing (120), and wherein an outer section of the first adapter unit (210) is provided to exert a force (F) on the inner wall (222) of the second receiving area (AB2) in order to fix the second adapter unit (220) in the housing opening.

Description

[0001] The present disclosure relates to an adapter arrangement for electrical connections of a drive energy storage device and to a drive energy storage device with such an adapter arrangement. The present disclosure relates in particular to a sealing adapter with tolerance compensation and quick-release coupling for electrical connections of a drive energy storage device. State of the art

[0002] A high-voltage battery in a hybrid or electric vehicle is an energy storage system that stores electrical energy in the form of high-voltage direct current. This stored energy is used to power at least one of the vehicle's electric motors. Typically, these high-voltage batteries are composed of lithium-ion cells or modules configured in a battery pack.

[0003] The so-called penthouse is a specially designed unit, typically located on top of the high-voltage storage system, that serves as an enclosure for important electrical and electronic components. However, current designs present significant challenges, particularly regarding the large tolerances between the penthouse enclosure cover and the high-voltage storage system terminals that protrude through the cover.

[0004] Existing designs often require the complex screwing of a retaining plate and the use of two sealing inserts to ensure that the connections are watertight and dustproof to the penthouse's housing cover. Another disadvantage of existing designs is that the connections are usually screwed to the housing cover using adapters, and the poles of the high-voltage battery have large positional tolerances, including relative to each other. Connecting both poles simultaneously with a single adapter requires a complex and time-consuming tolerance compensation process. Disclosure of the invention

[0005] It is an object of the present disclosure to specify an adapter arrangement for electrical connections of a drive energy storage device and a drive energy storage device with such an adapter arrangement, which enable an efficient connection of electrical connections with sealing adapters. In particular, it is an object of the present disclosure to compensate for large positional tolerances while simultaneously ensuring water and dust tightness.

[0006] This problem is solved by the subject matter of the independent claims. Advantageous embodiments are specified in the dependent claims.

[0007] According to an independent aspect of the present disclosure, an adapter arrangement for electrical connections of a drive energy storage device is specified. The adapter arrangement comprises: - a first adapter unit having a first receiving area for an electrical connection, wherein at least one first sealing element is arranged on an inner wall of the first receiving area, which is configured to seal an area between the inner wall of the first receiving area and the electrical connection; and - a second adapter unit having a second receiving area for the first adapter unit, wherein at least one second sealing element can be arranged between an inner wall of the second receiving area and an outer wall of the first adapter unit to seal an area between the inner wall of the second receiving area and the outer wall of the first adapter unit, - wherein the adapter arrangement can be inserted into a housing opening of a housing, and wherein an outer section of the first adapter unit is provided to exert a force on the inner wall of the second receiving area in order to fix the second adapter unit in the housing opening.

[0008] According to the invention, an adapter arrangement is provided which can be inserted into a housing opening to create a seal between the housing and an electrical connection extending through the housing opening and to compensate for positional tolerances. For this purpose, the adapter arrangement comprises two nested adapter units with quick-release couplings and seals for water and dust tightness. This design enables quick and efficient assembly, compensates for large positional tolerances, and simultaneously ensures reliable water and dust tightness.

[0009] Preferably, the outer section of the first adapter unit is at least partially movable and / or flexible. For example, the outer section of the first adapter unit can be radially movable and / or flexible, so that the outer section is radially tensioned when the first adapter unit is inserted into the second adapter unit to exert force on the inner wall of the second receiving area.

[0010] Preferably, the outer section of the first adapter unit comprises at least one first slot. The at least one first slot can be configured such that the outer section of the first adapter unit is at least partially movable and / or flexible, in particular radially movable and / or flexible. However, the at least one first slot is optional and may be omitted in other embodiments.

[0011] Preferably, the at least one first slot is at least one first longitudinal slot. The at least one first longitudinal slot can be formed in the longitudinal direction of the adapter arrangement, in particular the first adapter unit.

[0012] The longitudinal direction of the adapter assembly refers to the principal axis along which the adapter assembly extends or is oriented. With respect to the housing opening into which the adapter assembly is inserted, the longitudinal direction can specify the direction in which the adapter assembly is inserted or fitted into the housing opening. This direction runs parallel to the insertion direction of the adapter assembly into the housing opening and can extend from the front to the rear of the adapter assembly.

[0013] Preferably, the second receiving area of ​​the second adapter unit is at least partially movable and / or flexible. For example, the second receiving area of ​​the second adapter unit can be partially radially movable and / or flexible, so that the second adapter unit presses against an edge of the housing opening when the first adapter unit exerts force on the inner wall of the second receiving area.

[0014] Preferably, the second receiving area of ​​the second adapter unit comprises at least one second slot. This second slot can be configured such that the second receiving area of ​​the second adapter unit is at least partially movable and / or flexible, in particular radially movable and / or flexible. However, the second slot is optional, and the flexibility can be provided by other means, such as material properties of the second adapter unit.

[0015] Preferably, the at least one second slot is at least one second longitudinal slot. The at least one second longitudinal slot can be formed in the longitudinal direction of the adapter arrangement, in particular the second adapter unit.

[0016] Preferably, the at least one second slot of the second adapter unit extends in a partial area of ​​the second adapter unit. In some embodiments, the at least one second slot extends (only) in a lower half, a lower third, or a lower quarter of the second adapter unit, for example, with respect to the longitudinal direction of the adapter arrangement.

[0017] Preferably, the outer diameter of the outer section of the first adapter unit is at least partially larger than the inner diameter of the second receiving area of ​​the second adapter unit when the first adapter unit is not inserted into the second adapter unit, so that the force is generated on the inner wall of the second receiving area when the first adapter unit is inserted into the second adapter unit. In other words, the outer diameter of the outer section of the first adapter unit can be variable, for example, by means of the at least one slot described above.

[0018] Preferably, the force exerted by the outer section of the first adapter unit on the inner wall of the second receiving area is a radial force or has a radial force component. The term "radial" can be defined in relation to the longitudinal direction or longitudinal axis of the adapter arrangement and / or substantially perpendicular to a longitudinal axis of the housing opening.

[0019] Preferably, the force exerted by the outer section of the first adapter unit on the inner wall of the second receiving area is a force that is essentially perpendicular to the longitudinal axis of the adapter arrangement or has a force component that is essentially perpendicular to the longitudinal axis of the adapter arrangement.

[0020] Preferably, the first adapter unit has at least one first hook element that engages with the second adapter unit when the adapter arrangement is inserted into the housing opening in order to limit longitudinal movement of the first adapter unit after the adapter arrangement has been inserted into the housing opening.

[0021] Preferably, the at least one first hook element extends radially outwards. For example, the at least one first hook element can extend radially outwards from an outer wall of the first adapter unit.

[0022] Preferably, the at least one first hook element is arranged at a lower end of the first adapter unit, in particular at a lower end of the outer section of the first adapter unit.

[0023] Preferably, one underside of the second adapter unit rests on the at least one first hook element when the adapter assembly is inserted into the housing opening. This limits or prevents upward longitudinal movement of the first adapter unit after insertion.

[0024] Preferably, the second adapter unit has at least one second hook element that engages with the housing opening when the adapter arrangement is inserted into the housing opening in order to limit longitudinal movement of the second adapter unit after the adapter arrangement has been inserted into the housing opening.

[0025] Preferably, the at least one second hook element extends radially outwards. For example, the at least one second hook element can extend radially outwards from an outer wall of the second adapter unit.

[0026] Preferably, at least one second hook element is arranged at a lower end of the second adapter unit.

[0027] Preferably, an edge region of the housing opening, in particular a lower edge region of the housing opening, rests on at least one second hook element when the adapter assembly is inserted into the housing opening. This allows upward longitudinal movement of the second adapter unit to be limited or prevented after insertion.

[0028] Preferably, the at least one second slot of the second adapter unit is provided such that the at least one second hook element, in particular a plurality of second hook elements, are formed.

[0029] Preferably, the adapter arrangement comprises at least one third sealing element that can be arranged between the second adapter unit and the housing. This allows a seal to be created between the second adapter unit and the housing.

[0030] Preferably, the at least one first sealing element is a bellows seal. A bellows seal is a flexible seal designed in the form of a bellows or corrugated bellows to seal two components that can move relative to each other. Furthermore, the bellows seal can compensate for positional tolerances.

[0031] Preferably, at least one first sealing element is an injection-molded seal. An injection-molded seal is a seal that is applied directly to the inner wall of the first receiving area of ​​the first adapter unit by injection-molding the sealing material (usually an elastomer such as rubber or a thermoplastic material) onto the inner wall.

[0032] Preferably, at least one second sealing element is an O-ring. An O-ring is a ring-shaped seal made of an elastic material such as rubber, silicone, or another polymeric material.

[0033] Preferably, the at least one second sealing element is an injection-molded sealing element, such as an injection-molded O-ring. However, the present disclosure is not limited to this and the at least one second sealing element may be designed in another suitable manner.

[0034] Preferably, at least one third sealing element is an O-ring.

[0035] Preferably, the at least one third sealing element is an injection-molded sealing element, such as an injection-molded O-ring. However, the present disclosure is not limited to this, and the at least one third sealing element may be designed in another suitable manner.

[0036] Preferably, the adapter arrangement has a substantially round and / or rotationally symmetrical overall shape.

[0037] Preferably, the adapter arrangement has a holding arrangement that can be connected to at least one fixing element of the housing in order to limit a rotational movement of the adapter arrangement in the housing opening.

[0038] Preferably, the second adapter unit of the adapter arrangement includes the holding arrangement.

[0039] Preferably, the holding arrangement comprises at least one engagement element designed to engage with the at least one fixing element of the housing.

[0040] Preferably, the at least one engagement element is designed to at least partially enclose the at least one fixing element of the housing.

[0041] Preferably, at least one engagement element is designed in a fork shape.

[0042] Preferably, the at least one fixing element of the housing is a projection on a surface of the housing, particularly in an area next to the housing opening.

[0043] According to another independent aspect of the present disclosure, a propulsion energy storage device for a vehicle, in particular a motor vehicle, is specified. The propulsion energy storage device comprises: - a battery casing in which a large number of battery cells are arranged; - an electronics housing arranged on the battery housing, wherein at least one electrical connection for the plurality of battery cells extends to the outside through at least one housing opening in the electronics housing; and - at least one adapter arrangement according to the embodiments of the present disclosure, wherein the at least one adapter arrangement is inserted into the at least one housing opening of the electronic housing and encloses the at least one electrical connection, in particular being substantially water- and / or dust-tight.

[0044] The vehicle can be a hybrid or electric vehicle. However, the present disclosure is not limited to this and the vehicle can also be a fuel cell electric vehicle (FCEV).

[0045] The drive energy storage system in a hybrid or electric vehicle is an energy storage system that stores electrical energy in the form of high-voltage direct current. This stored energy is used to power at least one of the vehicle's electric motors. Typically, these drive energy storage systems are composed of lithium-ion cells or modules configured in a battery pack. The drive energy storage system can also be referred to as a high-voltage storage system or battery.

[0046] Preferably, the electronics housing is arranged on the top side of the battery housing.

[0047] Preferably, at least one housing opening is arranged on a top side of the electronics housing.

[0048] Preferably, at least one opening in the housing is essentially round.

[0049] Preferably, the electronics housing is a penthouse. The term "penthouse" refers to a specially designed unit, located, for example, on the top of the drive energy storage system. The penthouse can be a cover or a housing that contains and protects the electrical and electronic components of the drive energy storage system.

[0050] Preferably, at least one electrical connection is a pole. The pole can be a positive or negative terminal of the battery.

[0051] Preferably, at least one electrical terminal is a B+ terminal or a B- terminal. The terms "B+ terminal" and "B- terminal" can refer to the two terminals of the battery.

[0052] According to another independent aspect of the present disclosure, a hybrid or electric vehicle, in particular a motor vehicle, is specified. The vehicle includes the drive energy storage device according to the embodiments of the present disclosure.

[0053] Hybrid or electric vehicles are powered by an electric motor, with the necessary electrical energy stored, for example, in a high-voltage battery. The high-voltage battery can be recharged at a home charging station or at a dedicated charging station.

[0054] Depending on the specific design, the hybrid or electric vehicle can be a pure electric vehicle (BEV) or a plug-in hybrid vehicle (PHEV). The term "vehicle" includes cars, trucks, buses, motorhomes, motorcycles, etc., used for the transport of persons, goods, etc. In particular, the term includes motor vehicles for passenger transport. Brief description of the drawings

[0055] Examples of the manifestation of the revelation are shown in the figures and are described in more detail below. They show: Fig. 1 schematically a drive energy storage device for a hybrid or electric vehicle according to embodiments of the present disclosure, Fig. 2 an adapter arrangement for electrical connections of a drive energy storage device according to embodiments of the present disclosure, Fig. 3 an adapter arrangement for electrical connections of a drive energy storage device according to further embodiments of the present disclosure in an unpressed state, and Fig. 4 an adapter arrangement for electrical connections of a drive energy storage device according to further embodiments of the present disclosure in a pressed state. Implementations of the revelation

[0056] Unless otherwise noted, the same reference symbols are used for identical and equivalent elements in the following.

[0057] Fig. Figure 1 schematically shows a drive energy storage device 100 for a hybrid or electric vehicle according to embodiments of the present disclosure. The hybrid or electric vehicle can be a battery electric vehicle (BEV) or a plug-in hybrid electric vehicle (PHEV) according to embodiments.

[0058] The drive energy storage device 100, also called a traction battery or high-voltage storage device, comprises a plurality of battery cells (not shown) in a battery housing 110. The plurality of battery cells can be interconnected to provide the total energy and voltage required for an electric drive of the hybrid or electric vehicle. In some embodiments, the plurality of battery cells can be rechargeable lithium-ion cells; however, the present disclosure is not limited to this.

[0059] The drive energy storage unit 100 further comprises an electronics housing 120, which is arranged on the top side of the battery housing 110. The electronics housing 120 can be a so-called penthouse, containing and protecting the electrical and electronic components of the drive energy storage unit 100.

[0060] Electrical connections 130A, 130B for the plurality of battery cells extend through housing openings in a top surface of the electronic housing 120. The electrical connections can include a positive terminal 130A (e.g., B+ terminal) and a negative terminal 130B (e.g., B- terminal), but the present disclosure is not limited to this.

[0061] The drive energy storage device 100 further comprises adapter arrangements 200 according to the embodiments of the present disclosure. The adapter arrangement 200 is inserted into a corresponding housing opening of the electronics housing 120 and encloses the associated electrical connection in a substantially water- and / or dust-tight manner and compensates for positional tolerances.

[0062] The following is a detailed description of an exemplary embodiment of the adapter arrangement 200.

[0063] Fig. Figure 2 shows adapter arrangements 200 for electrical connections of a drive energy storage device according to embodiments of the present disclosure. In the example of the Fig. Figure 2 shows two adapter arrangements 200, one each for a positive pole 130A (e.g. B+ pole) and a negative pole 130B (e.g. B- pole).

[0064] The adapter arrangement 200 comprises a first adapter unit 210, which has a first receiving area AB1 for an electrical connection 130A, 130B, wherein at least one first sealing element 201 is arranged on an inner wall 212 of the first receiving area AB1, which is configured to seal an area between the inner wall 212 of the first receiving area AB1 and the electrical connection 130A, 130B. In some embodiments, the at least one first sealing element 201 is a bellows seal and / or an injection-molded seal.

[0065] The adapter arrangement 200 further comprises a second adapter unit 220, which has a second receiving area AB2 for the first adapter unit 210, wherein at least one second sealing element 202, such as an O-ring, can be arranged or is arranged between an inner wall 222 of the second receiving area AB2 and an outer wall 214 of the first adapter unit 210 in order to seal an area between the inner wall 222 of the second receiving area AB2 and the outer wall 214 of the first adapter unit 210. In some embodiments, the at least one second sealing element 202 can be inserted into a recess in the inner wall 222 of the second receiving area AB2.

[0066] The adapter arrangement 200 can be inserted into a housing opening of a housing 120, such as an electronics housing or penthouse (e.g. Fig. 1) An outer section of the first adapter unit 210 is designed to exert a force F on the inner wall 222 of the second receiving area AB2 (area A) in order to fix the second adapter unit 220 in the housing opening.

[0067] The outer section of the first adapter unit 210 can be at least partially radially movable and / or flexible, such that the outer section is tensioned when the first adapter unit 210 is inserted into the second adapter unit 220 to exert the force F on the inner wall 222 of the second receiving area AB2. In some embodiments, the outer section of the first adapter unit 210 comprises at least one first slot, such as at least one first longitudinal slot, so that the outer section of the first adapter unit 210 is at least partially movable and / or flexible, in particular radially movable and / or flexible. However, the at least one first slot is optional and may be omitted in other embodiments.

[0068] The second receiving area AB2 of the second adapter unit 220 can be configured to be at least partially radially movable and / or flexible, such that the second adapter unit 220 presses against an edge of the housing opening when the first adapter unit 210 exerts the force K on the inner wall 222 of the second receiving area AB2. In some embodiments, the second receiving area AB2 comprises at least one second slot, such as at least one second longitudinal slot, so that the second receiving area AB2 is at least partially movable and / or flexible, in particular radially movable and / or flexible.

[0069] In some embodiments, the at least one second slot of the second adapter unit 220 extends into a partial area of ​​the second adapter unit 220, in particular into a lower half, a lower third or a lower quarter of the second adapter unit 220, for example in relation to the longitudinal direction of the adapter arrangement 200.

[0070] The outer diameter of the outer section of the first adapter unit 210 may be larger, at least in places, than the inner diameter of the second receiving area AB2 of the second adapter unit 220, or may have a slight oversize, when the first adapter unit 210 is not inserted into the second adapter unit 220, so that the force F is generated on the inner wall 222 of the second receiving area AB2 when the first adapter unit 210 is inserted into the second adapter unit 220.

[0071] Typically, the force F exerted by the outer section of the first adapter unit 210 on the inner wall 222 of the second receiving area 220 is a radial force or has a radial force component. Furthermore, the force F can be a force substantially perpendicular to the longitudinal axis LA of the adapter arrangement 200 or have a force component substantially perpendicular to the longitudinal axis LA of the adapter arrangement 200.

[0072] In some embodiments, the first adapter unit 210 has at least one first hook element 216 that engages with the second adapter unit 220 when the adapter arrangement 200 is inserted into the housing opening. Typically, the at least one first hook element 216 extends radially outward from a lower end of the first adapter unit 210. A bottom surface of the second adapter unit 220 can rest on the at least one first hook element 216 when the adapter arrangement 200 is inserted into the housing opening, in order to limit longitudinal movement of the first adapter unit 210 after insertion of the adapter arrangement 200 into the housing opening, particularly upward movement.

[0073] In some embodiments, the second adapter unit 220 has at least one second hook element 226 that engages with the housing opening when the adapter arrangement 200 is inserted into the housing opening. Typically, the at least one second hook element 226 extends radially outward from a lower end of the second adapter unit 220. A bottom surface of an edge region of the housing opening can rest on the at least one second hook element 226 when the adapter arrangement 200 is inserted into the housing opening, in order to limit longitudinal movement of the second adapter unit 220 after insertion of the adapter arrangement 200 into the housing opening, particularly upward movement.

[0074] In some embodiments, the adapter arrangement 200 comprises at least one third sealing element 203, such as an O-ring, which can be arranged or is arranged between the second adapter unit 220 and the housing. This allows a seal to be formed between the second adapter unit 220 and the housing.

[0075] Fig. Figure 3 shows an adapter arrangement 300 for electrical connections of a drive energy storage device according to further embodiments of the present disclosure in an unpressed state (i.e. without the first adapter unit). Fig. Figure 4 shows the adapter arrangement 300 in a pressed state (i.e. with the first adapter unit).

[0076] The adapter arrangement 300 according to the Fig. 3 and Fig. 4 is similar to the one in Fig. The adapter arrangement shown in Figure 2 is described below. Therefore, for identical or similar aspects, please refer to their descriptions to avoid repetition.

[0077] The second adapter unit 220 comprises at least one second slot 228. The at least one second slot 228 of the second adapter unit 220 is provided such that the at least one second hook element 226, in particular a plurality of second hook elements, are formed.

[0078] In some embodiments, the at least one second slot 228 of the second adapter unit 220 extends into a partial region of the second adapter unit 220, in particular into a lower half, a lower third, or a lower quarter of the second adapter unit 220, for example, with respect to the longitudinal axis LA of the adapter arrangement 300. Thus, the at least one second hook element 226 of the second adapter unit 220 can also be formed in a partial region of the second adapter unit 220, in particular into a lower half, a lower third, or a lower quarter of the second adapter unit 220, for example, with respect to the longitudinal axis LA of the adapter arrangement 300.

[0079] The at least one second hook element 228 can engage with the edge of the housing opening when the adapter arrangement 300 is inserted into the housing opening. In particular, the first adapter unit 210 can be configured to exert the force F on the at least one second hook element 228 in order to fix the second adapter unit 220 in the housing opening.

[0080] In some embodiments, the adapter arrangement 300, in particular the second adapter unit 220 of the adapter arrangement 300, has a holding arrangement 230 which can be connected to at least one fixing element 122 of the housing 120 in order to limit, and in particular prevent, a rotational movement of the adapter arrangement 300 in the housing opening, in particular about the longitudinal axis LA of the adapter arrangement 300.

[0081] The holding arrangement 230 can have at least one engagement element 232 configured to engage with, and in particular at least partially enclose, the at least one fixing element 122 of the housing 120. For this purpose, the at least one engagement element 232 can be fork-shaped, and the at least one fixing element 122 of the housing 120 can be configured as a projection on a surface 124 of the housing 120 in an area adjacent to the housing opening.

[0082] According to the invention, an adapter arrangement is provided which can be inserted into a housing opening to create a seal between the housing and an electrical connection extending through the housing opening and to compensate for positional tolerances. For this purpose, the adapter arrangement comprises two nested adapter units with quick-release couplings and seals for water and dust tightness. This design enables quick and efficient assembly, compensates for large positional tolerances, and simultaneously ensures reliable water and dust tightness.

[0083] Although the invention has been further illustrated and explained in detail by means of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived from them by a person skilled in the art without departing from the scope of protection of the invention. It is therefore clear that a multitude of possible variations exist. It is also clear that the embodiments mentioned as examples are truly only examples and are not to be understood in any way as limiting, for example, the scope of protection, the possible applications, or the configuration of the invention.Rather, the preceding description and the description of the figures enable the person skilled in the art to implement the exemplary embodiments in concrete terms, whereby the person skilled in the art, with knowledge of the disclosed inventive concept, can make various changes, for example with regard to the function or the arrangement of individual elements mentioned in an exemplary embodiment, without leaving the scope of protection defined by the claims and their legal equivalents, such as further explanations in the description.

Claims

[1] Adapter arrangement (200) for electrical connections (10A, 130B) of a drive energy storage device (100), comprising: - a first adapter unit (210) having a first receiving area (AB1) for an electrical connection (130A, 130B), wherein at least one first sealing element (201) is arranged on an inner wall (212) of the first receiving area (AB1), which is configured to seal an area between the inner wall (212) of the first receiving area (AB1) and the electrical connection (130A, 130B); and - a second adapter unit (220) having a second receiving area (AB2) for the first adapter unit (210), wherein at least one second sealing element (202) can be arranged between an inner wall (222) of the second receiving area (AB2) and the first adapter unit (210) to seal an area between the inner wall (222) of the second receiving area (AB2) and an outer wall (214) of the first adapter unit (210), - wherein the adapter arrangement (200) can be inserted into a housing opening of a housing (120), and wherein an outer section of the first adapter unit (210) is provided to exert a force (F) on the inner wall (222) of the second receiving area (AB2) in order to fix the second adapter unit (220) in the housing opening. [2] Adapter arrangement (200) according to claim 1, wherein: - the outer section of the first adapter unit (210) is at least partially movable and / or flexible; and / or - an outer diameter of the outer section of the first adapter unit (210) is at least partially larger than an inner diameter of the second receiving area (AB2) of the second adapter unit (220) when the first adapter unit (210) is not inserted into the second adapter unit (220), so that the force (F) on the inner wall (222) of the second receiving area (AB2) is generated when the first adapter unit (210) is inserted into the second adapter unit (220). [3] Adapter arrangement (200) according to claim 1 or 2, wherein the force (F) exerted by the outer section of the first adapter unit (210) on the inner wall (222) of the second receiving area (AB2), - is a radial force or has a radial force component; and / or - is substantially perpendicular to a longitudinal axis (LA) of the adapter arrangement (200) or has a force component substantially perpendicular to the longitudinal axis (LA) of the adapter arrangement (200). [4] Adapter arrangement (200) according to any one of claims 1 to 3, wherein the first adapter unit (210) has at least one first hook element (216) which engages with the second adapter unit (220) when the adapter arrangement (200) is inserted into the housing opening in order to limit longitudinal movement of the first adapter unit (210) after the adapter arrangement (200) has been inserted into the housing opening. [5] Adapter arrangement (200) according to claim 4, wherein: - that at least one first hook element (216) is arranged at a lower end of the first adapter unit (210); and / or - an underside of the second adapter unit (220) on which at least one first hook element (216) rests when the adapter arrangement (200) is inserted into the housing opening. [6] Adapter arrangement (200) according to any one of claims 1 to 5, wherein the second adapter unit (220) has at least one second hook element (226) which engages with the housing opening when the adapter arrangement (200) is inserted into the housing opening in order to limit longitudinal movement of the second adapter unit (220) after the adapter arrangement (200) has been inserted into the housing opening. [7] Adapter arrangement (200) according to claim 6, wherein: - that at least one second hook element (226) is arranged at a lower end of the second adapter unit (220); and / or - an edge area of ​​the housing opening, in particular a lower edge area of ​​the housing opening, on which at least a second hook element (226) rests when the adapter arrangement (200) is inserted into the housing opening. [8] Adapter arrangement (200) according to one of claims 1 to 7, further comprising at least a third sealing element (203) that can be arranged between the second adapter unit (220) and the housing (210). [9] Adapter arrangement (200) according to any one of claims 1 to 8, wherein: - that at least one initial sealing element (201) is a bellows seal; and / or - that at least one second sealing element (202) is an O-ring; and / or - that at least one third sealing element (203) is an O-ring. [10] Drive energy storage device (100) for a vehicle, in particular a hybrid or electric vehicle, comprising: - a battery housing (110) in which a plurality of battery cells are arranged; - an electronics housing (120) arranged on the battery housing (110), wherein at least one electrical connection (130A, 130B) for the plurality of battery cells extends outwards through at least one housing opening in the electronics housing (120); and - at least one adapter arrangement (200) according to one of claims 1 to 9, wherein the at least one adapter arrangement (200) is inserted into the at least one housing opening of the electronic housing (120) and encloses the at least one electrical connection (130A, 130B), in particular being substantially water- and / or dust-tight.

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