System for holding loads placed on the floor in a storage space, battery assembly comprising such a load-holding system, and marine structure comprising such a battery assembly
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2026-04-08
AI Technical Summary
Existing solutions for maintaining battery packs in a ship's battery room are bulky, costly, and fail to keep the packs stationary in a controlled manner due to movements caused by sea states and shocks, posing safety risks.
A system using adjustable spacer devices that exert a controlled force between battery packs and side walls, utilizing friction coatings and adjustable mechanisms to immobilize the packs horizontally and limit vertical movements, ensuring secure and controlled positioning.
The system effectively maintains battery packs in a controlled, stationary position, preventing damage and ensuring safety by distributing forces uniformly and limiting movements through friction and adjustable mechanisms, thus enhancing safety and reducing bulkiness and costs.
Smart Images

Figure EP2024065057_05122024_PF_FP_ABST
Abstract
Description
[0001] System for maintaining loads placed on a floor of a storage space, battery assembly comprising such a load maintenance system and marine structure comprising such a battery assembly
[0002] The present invention relates to a system for holding loads placed on the floor of a storage space, for example a storage space of a floating marine structure, in particular a ship.
[0003] A large tonnage vessel generally includes a battery room in which is installed an electric battery formed from a plurality of electric accumulator packs arranged side by side
[0004] The battery packs are liable to move within the battery room due to the vessel's movements, particularly those caused by sea conditions or impacts to the vessel.
[0005] Battery packs are relatively fragile and must not be damaged, as this could cause an incident. Therefore, to protect the battery and ensure the safety of the vessel and its occupants, it is necessary to limit the movement of battery packs within the battery room.
[0006] It is possible to attach the battery packs to one or more hooks fixed to the floor of the battery room to immobilize the battery packs vertically, and to use wooden wedges and / or wooden wedges inserted between the battery packs to immobilize the battery packs horizontally, for example by striking the wedges or wedges with a tool such as a sledgehammer.
[0007] These solutions are bulky, restrictive, of a significant cost and are not entirely satisfactory because they do not allow the battery packs to be kept stationary in a controlled manner.
[0008] One of the aims of the invention is to propose a system for holding loads placed on the floor of a storage space which allows the loads to be kept stationary in a controlled manner.
[0009] To this end, the invention proposes a system for holding loads placed on a floor of a storage space, for example a storage space of a floating marine structure, the storage space being delimited by side walls, the holding system comprising one or more spacing devices, each spacing device being configured to be inserted between two loads or between a load and a side wall of the storage space by exerting a spacing force between the two so as to wedge the loads between at least two opposite side walls of the storage space, each spacing device being adjustable so as to adjust and maintain the spacing force exerted by the spacing device.
[0010] The adjustable spreader device for adjusting and maintaining the spreader force helps control the forces applied to the loads and side walls of the storage space, and ensures controlled retention of the loads.
[0011] In particular embodiments, the holding system comprises one or more of the following optional features, taken individually or in any technically possible combination:
[0012] - each load or each spacer device bearing against a side wall being bearing against this side wall via one or more buffers;
[0013] - the holding system comprises friction linings provided in such a way that the loads and the spacer device(s) bear against each other and against the side walls by means of the friction linings;
[0014] - the friction coatings are configured in such a way that the coefficient of friction between two of the friction coatings in mutual contact is equal to or greater than 1.5, in particular 2;
[0015] - the loads and the spacing device(s) are in plane support against each other, along support surfaces perpendicular to the ground;
[0016] - each spacing device comprises two support elements movable relative to each other in a spacing direction between a close position and a spaced position, and an adjustment mechanism configured to adjust and maintain the spacing between the two support elements;
[0017] - the support elements are elongated and extend parallel to each other;
[0018] - the adjustment mechanism comprises a wedge arranged between the two support elements and being movable in an adjustment direction, the movement of the wedge in the adjustment direction modifying the spacing between the support elements in the spacing direction;
[0019] - the corner comprises a corner portion or several corner portions distributed along the corner, for example along the direction of adjustment;
[0020] - each wedge portion is received between two internal bearing surfaces of the bearing elements located opposite one another, the internal bearing surfaces extending in the adjustment direction, converging in a first direction, the movement of the wedge in said first direction causing the bearing elements to move apart;
[0021] - the adjustment mechanism comprises a screw / nut system comprising a screw whose rotation controls the separation or bringing together of the support elements; - the holding system comprises a base on which the screw is rotatably mounted and a thread provided in the corner in which the screw is engaged, the rotation of the screw making it possible to adjust and maintain a distance between the base and the corner;
[0022] - each support element is connected to the base by a sliding connection allowing the movement of the support element relative to the base in the direction of separation and preventing the movement of the support element relative to the base in the direction of adjustment.
[0023] The invention also relates to a battery assembly comprising a storage space, for example a storage space of a marine structure, the storage space being delimited by a floor and side walls, accumulator packs placed on the floor in the storage space, and a holding system as defined above arranged so as to keep the accumulator packs, constituting the charges, wedged between the side walls of the storage space.
[0024] The invention also relates to a floating marine structure, in particular a ship, comprising a battery assembly as defined above.
[0025] The invention and its advantages will be better understood on reading the following description, given solely as a non-limiting example, and made with reference to the appended drawings, in which
[0026] - Figure 1 is a top view of a storage space of a marine structure such as a ship, in which loads, such as electric accumulator packs of an electric battery, are arranged, held using a holding system;
[0027] - Figure 2 is a sectional view of the storage space according to II - II in Figure 1;
[0028] - Figure 3 is a side view of a spacing device of the holding system of Figure 1 in a first configuration;
[0029] - Figure 4 is a side view of the spacer device of Figure 3 in a second configuration;
[0030] - Figure 5 is a cross-sectional view of the spacer device of Figures 3 and 4, showing an adjustment mechanism of the spacer device; and
[0031] - Figure 6 is an exploded perspective view of a pad of the holding system of Figure 1, the pad being formed of several superimposed plates, the plates being of different thicknesses.
[0032] As illustrated in Figures 1 and 2, a marine structure 2 comprises a storage space 4 having a floor 6 and side walls 8, the storage space 4 containing loads 10 which are placed on the floor 6 of the storage space 4 while being held horizontally between the side walls 8 using a holding system 12 comprising one or more spacer devices 14.
[0033] In the remainder of the description, the terms “horizontal” and “vertical” are understood to refer to the floor 6 of the storage space 4, considered to be horizontal, and the side walls 8 of the storage space 4, considered to be vertical.
[0034] Each spacing device 14 is configured to be inserted between two loads 10 or between a load 10 and one of the side walls 8 of the storage space 4, by exerting a spacing force between the two so as to wedge the loads 10 between two opposite side walls 8 of the storage space 4, and in particular to maintain the loads 10 in compression between the two opposite side walls 8.
[0035] The loads 10 are held in contact with each other and / or against the side walls 8 by the spacing device(s) 14 of the holding system 12 inserted between the loads 10 and the side walls 8.
[0036] The support of the loads 10 and / or the spacer devices 14 against the side walls 8 is preferably carried out by means of buffers 24 as will be detailed later.
[0037] Each spacer device 14 is adjustable so as to adjust and maintain the spacer force exerted by that spacer device 14.
[0038] This makes it possible to adjust and maintain the spacing force between the loads 10 between which this spacing device 14 is inserted or between the load 10 and the side wall 8 between which this spacing device 14 is inserted.
[0039] This makes it possible to adjust the compression force of the loads 10 between the side walls 8 of the storage space 4.
[0040] The wedging of the loads 10 against the side walls 8 of the storage space 4 immobilizes the loads 10 horizontally and limits the vertical movements of the loads 10 by friction between the loads 10 and each other and / or against the side walls 8 against which they rest.
[0041] Each load 10 has, for example, a general parallelepiped shape with lateral faces 10A, a lower face 10B, possibly provided with support feet by means of which the load 10 rests on the ground 6, and an upper face 10C.
[0042] The loads 10 are for example arranged in one or more rows, each row extending between two opposite side walls 8 of the storage space 8, one or more spacer devices 14 being arranged in each row, each spacer device 14 being arranged between two loads 10 of the row or between a load 10 of the row 16 and one of the two side walls 8 between which the row 16 is located, to keep the loads 10 of the row 16 wedged between said two opposite side walls 8.
[0043] The storage space 6 comprises, for example, two opposite side walls 8 which are parallel and spaced apart along a first horizontal direction T1.
[0044] The loads 10 are arranged in one or more first rows 16, each first row 16 comprising loads 10 aligned in the first horizontal direction T 1 .
[0045] At least one of the holding devices 14 is inserted in each first row 16, for example between two loads 10 of the first row 16, to keep the loads 10 of the first row 16 wedged between the two opposite side walls 8 spaced along the first horizontal direction T 1 .
[0046] The storage space 6 comprises, for example, two opposite side walls 8 which are parallel and spaced apart along a second horizontal direction T2, the second horizontal direction T2 making a non-zero angle with the first horizontal direction T1. The second horizontal direction T2 is preferably perpendicular to the first horizontal direction T1.
[0047] The loads 10 are arranged in one or more second rows 18, each second row 18 comprising aligned loads 10 extending in the second horizontal direction T2.
[0048] At least one of the spacer devices 14 is inserted in each second row 18, for example between two loads 10 of the second row 18, to keep the loads 10 of the second row 18 wedged between the two opposite side walls 8 spaced along the second direction T2.
[0049] The storage space 4 has, for example, a generally rectangular shape defined by the two parallel side walls 8 spaced along the first direction T1 and by the two parallel side walls 8 spaced along the second direction T2.
[0050] As illustrated in Figure 1, the charges 10 are arranged in three first rows 16 each comprising six charges 10, and six second rows 18 each comprising three charges 10.
[0051] Spacing devices 14 are arranged between the loads 10 of two adjacent rows among the first rows 16 to exert spacing forces along the second direction T2 and spacing devices 14 are arranged between the loads 10 of two adjacent rows among the second rows 18 to exert spacing forces along the first direction T1. During operation, each spacing device 14 is adjusted to exert and maintain a spacing force in such a way that the loads 10 are wedged between the side walls 8.
[0052] In Figure 1, the spreading force exerted in the first direction T1 by one of the spreading devices 14 is illustrated by first arrows F1 and the spreading force exerted in the second direction T2 by a spreading device 14 is illustrated by second arrows F2.
[0053] Preferably, the loads 10 are in horizontal plane support against the side walls 8 and the spacing device(s) 14.
[0054] Preferably, the loads 10 bear against the side walls 8 and the spacer device(s) 14 via vertical bearing surfaces located on the side faces 10A of the loads 10.
[0055] Advantageously, the vertical movements of the loads 10 are limited only by friction between the loads 10 and with the side walls 8 and the spacing device(s) 14.
[0056] The vertical movements of the loads 10 are not limited by vertical mechanical interference with holding elements, such as hooks or bolts anchored, in particular in the ground 6.
[0057] Advantageously, the holding system 10 comprises buffers 24 arranged on the side walls 8, each load 10 or each spacing device 14 bearing against a side wall 8 being bearing against this side wall 8 by means of one or more buffers 24, preferably via several buffers 24, in particular several buffers 24 distributed vertically, for example uniformly, between an upper end and a lower end of the load 10 or of the spacing device 14.
[0058] Each pad 24 is preferably made of an elastomeric material, for example silicone, polyurethane or rubber. Other materials are conceivable.
[0059] Advantageously, the holding system 10 comprises friction coatings provided in such a way that the loads 10 and the spacer device(s) 14 bear against each other and against the side walls 8 by means of the friction coatings.
[0060] The friction coatings comprise, for example, friction coatings 20 arranged on the lateral faces 10A of the loads 10 and / or friction coatings 22 arranged on the spacer device(s) 14. Each friction coating 20 is, for example, glued to the corresponding load 10, in particular to a lateral face 10A of the corresponding load 10.
[0061] Each friction coating 22 is for example glued to the corresponding spacer device 14.
[0062] Each friction element (friction coating 20 of load 10, friction coating 22 of spacer device 14) is preferably made of an elastomeric material, for example silicone, polyurethane or rubber. Other materials are conceivable.
[0063] Each load 10 bearing against a spacing device 14 is preferably bearing against this spacing device 14 via a friction coating 20 arranged on the load 10, in particular on a lateral face 10A of the load 10, and a friction coating 22 arranged on the spacing device 14.
[0064] Each load 10 bearing against a side wall 8 is preferably bearing against this side wall 8 via a friction coating 20 arranged on the load 10, in particular on a side face 10A of the load 10, and, preferably, one or more buffers 24 fixed on the side wall 8.
[0065] Each spacer device 14 bearing against a side wall 8 is preferably bearing against this side wall 8 via a friction coating 22 arranged on the spacer device 22, and, preferably, one or more buffers 24 fixed to the side wall 8.
[0066] Preferably, the friction linings are configured such that the coefficient of friction between two of the friction linings in mutual contact and / or between a friction lining and a pad 24 is equal to or greater than 1.5 and preferably equal to or greater than 2.
[0067] As illustrated in Figures 3 to 5, each spacing device 14 comprises for example two support elements 30 movable relative to each other in a spacing direction E between a close position (Figure 3) and a spaced position (Figure 4), and an adjustment mechanism 32 configured to adjust and maintain the spacing between the two support elements 30 in the spacing direction E.
[0068] Each support element 30 has an external face 30A facing away from the other support element 30, intended to come to bear against a load 10 or a side wall 8, and an internal face facing towards the other support element 30.
[0069] The external face 30A of each support element 30 is preferably flat and perpendicular to the spacing direction E.
[0070] If necessary, a friction coating 22 is arranged on each external face 30A. The adjustment mechanism 32 comprises a wedge 34 movable between the support elements 30 in an adjustment direction R, the movement of the wedge 34 in the adjustment direction R modifying the spacing between the support elements 30.
[0071] The adjustment direction R is preferably inclined relative to the spacing direction E, and in particular perpendicular to the spacing direction E.
[0072] Advantageously, the support elements 30 are elongated and extend parallel to one another, for example in the adjustment direction R. Each support element 30 has the shape of an elongated support leg, for example in the adjustment direction R.
[0073] The spacing device 14 is for example provided for the insertion of the support elements 30 between two loads 10 or between a load 10 and a side wall 8, the spacing direction E being horizontal, the adjustment direction R preferably being vertical.
[0074] As visible in Figure 5, the wedge 34 is movable between the support elements 30 in such a way that the movement of the wedge 34 along the adjustment direction R in a first direction S1 tends to move the support elements 30 apart along the spacing direction E and that the movement of the wedge 34 along the adjustment direction R in a second direction S2, opposite to the first direction S1, allows the support elements 30 to be brought together.
[0075] In one example, and as illustrated in Figure 5, the spacing device 14 is configured for the insertion of its support elements 30 between two loads 10 or between a load 10 and a side wall 8 in such a way that the adjustment direction R is vertical, that the movement of the wedge 34 in the adjustment direction R downwards (Arrow S1 in Figure 5) tends to separate the support elements 30 in the spacing direction E (Arrows A1 in Figure 5) and that the movement of the wedge 34 in the adjustment direction R upwards (Arrow S2 in Figure 5) allows the support elements 30 to be brought together (Arrows A2 in Figure 5).
[0076] The corner 34 comprises a corner portion 36 or, advantageously, several corner portions 36, each corner portion 36 acting as a corner between the two support elements 30.
[0077] The wedge 34 comprises, for example, several wedge portions 36 distributed along the support elements 30, the wedge 34 preferably being elongated and extending along the support elements 30, in particular along the adjustment direction R. The provision of several wedge portions 36 makes it possible to distribute the separation forces exerted by the wedge 34 along the support elements 30.
[0078] Each corner portion 36 is for example supported on two internal support surfaces 30C of the support elements 30 facing each other and inclined relative to each other so that they converge along the adjustment direction R in the first direction S1 and they diverge along the adjustment direction R in the second direction S2.
[0079] Preferably, each corner portion 36 has two lateral bearing surfaces 36A, each coming into plane contact with a respective internal bearing surface 30C among the two internal bearing surfaces 30C associated with this corner portion 36.
[0080] The two lateral support surfaces 36A are inclined relative to each other.
[0081] The two lateral support surfaces 36A of each corner portion 36 extend in the adjustment direction R, converging in the first direction S1 (and diverging in the second direction S2).
[0082] The adjustment mechanism 32 is configured to adjust and maintain the spacing between the support elements 30.
[0083] The adjustment mechanism 32 comprises, for example, a screw system 40 comprising a screw 42 whose rotation makes it possible to adjust the spacing between the support elements 30.
[0084] The screw system 40 is preferably non-reversible, such that once the spacing is adjusted, the screw system 40 maintains this spacing. Thus, it is not necessary to provide a locking device.
[0085] In one example, the screw 42 extends between a base 44 and the wedge 34 along the adjustment direction R, the screw system 40 is configured to control the spacing between the base 44 and the wedge 34 along the adjustment direction R, so as to control the position of the wedge 34 along the adjustment direction R relative to the support elements 30 using the screw 42, and thus control the spacing between the support elements 30.
[0086] A force applied by the screw 42 between the base 44 and the wedge 34 in the adjustment direction R is converted by the wedge 34 into a separation force between the support elements 30 in the separation direction E.
[0087] In one example, screw 42 is pivotally mounted on base 44 and engaged in a thread 34A (Figure 5) of wedge 34.
[0088] Optionally, each support element 30 is connected to the base 44 by at least one retaining connection 50 allowing the support elements 30 to be moved apart and brought together in the separation direction E while keeping the support elements 30 stationary along the adjustment direction R relative to the base 44.
[0089] Each retaining connection 50 comprises for example a slider 52 slidably received in a guide 54, one of the slider 52 and the guide 54 being provided on the base 44 and the other on the support element 30. The guide 54 extends in the spacing direction E. In a particular example, the slider 52 is provided on the support element 30 and the guide 54 is provided on the support element 30. The slider 52 is for example a pin and / or the guide is for example a groove or a slot.
[0090] Advantageously, the screw 42 has an end 42A configured to cooperate with a tightening tool for tightening the screw 42.
[0091] Each pad 24 is for example made from a single piece of material or, as illustrated in Figure 6, formed from a stack of several sheets 26, the sheets 26 having equal or different thicknesses.
[0092] The provision of pads 24 formed from stacks of sheets 26 makes it possible to easily adjust the thickness of each pad 24 when installing the loads 10, by adding a sheet 26 to thicken a pad 24 or by removing a sheet 26 to thin a pad 24, for example to take into account manufacturing tolerances.
[0093] In this case, the sheets 26 are preferably made of the same material,
[0094] Preferably, the base 44 of each spacer device 14 is configured to be fixed, in particular vertically, on two loads 10 between which the spacer device 14 is inserted or on a load 10 and a side wall 8 between which the spacer device 14 is inserted.
[0095] The base 44 comprises, for example, fixing portions 58 configured to be fixed to two loads 10 between which the spacer device 14 is inserted, for example using screws (symbolically represented by dot-and-dash lines crossing the fixing portions 58 in Figures 3 to 5).
[0096] In operation, the loads 10 are arranged in the storage space 4 and one or more spacer devices 14 are arranged between the loads 10 and the side walls 8, each spacer device 14 is slid between two loads 10 or between a load 10 and a side wall 8.
[0097] The base 44 of each spacer device 14 is fixed, for example via its fixing parts 58.
[0098] Where appropriate, the loads 10 and the spacer devices 14 are provided with friction elements, in particular load friction linings 20 and / or device friction linings 22.
[0099] Preferably, the buffers 24 are arranged on the side walls 8.
[0100] Each spreading device 14 is set to apply a predetermined spreading force.
[0101] To do this, the screw 42 of each spacing device 14 is tightened to the torque (i.e. by applying a predetermined tightening torque), for example using a torque wrench, corresponding to the predetermined spreading force. Tightening the screw 42 to the torque makes it possible to adjust the position of the wedge 34 relative to the support elements 30 to obtain the desired spreading force corresponding to the adjustment torque.
[0102] The predetermined spreading force exerted by each spreading device 14 makes it possible to keep the loads 10 pressed against the side walls 8 in a controlled manner, to prevent the loads 10 from moving in such a way as to create an incident.
[0103] Once the spacing device 14 has been adjusted, the loads 10 are kept in contact with each other and against the side walls 8 of the storage space 4.
[0104] The loads 10 are immobilized horizontally due to the absence of play between the loads 10 and the side walls 8, and their movements are limited vertically by friction between the loads 10, the side walls 8 and the spacer devices 14, preferably by means of the friction elements.
[0105] The buffers 24 and the friction elements (friction coatings 20, 22) make it possible to increase the friction force to limit the vertical movements effectively taking into account the spreading force applied by the spreading devices 14.
[0106] Each spacing device 14 has a limited size along the spacing direction E and can be inserted into a narrow space defined between two loads 10 or between a load 10 and a side wall 8, while exerting and maintaining a controlled spacing force along the spacing direction E.
[0107] The elongated support elements 30 and the elongated wedge 34 received between the support elements 30, make it possible to apply the spreading force to the loads 10 in a distributed and uniform manner along the support elements 30.
[0108] In an exemplary embodiment, the storage space 4 is located in a marine structure 60, for example a floating marine structure, for example a ship, in particular a surface ship or an underwater ship.
[0109] In this case, the holding system 2 makes it possible to limit the movements of loads 10, which may be due to the state of the sea or to shocks suffered by the marine structure 60.
[0110] The loads 10 are for example packs of electric accumulators electrically connected together to define a battery 62, in particular a battery of a marine structure 60.
[0111] The invention is not limited to maintaining battery packs in a battery room of a ship, but can be applied to other situations.
[0112] The marine structure may be, for example, a surface vessel, a submarine vessel, a floating platform or a barge. The support system may be used in other vehicles, such as railway vehicles, road vehicles or aircraft, for supporting loads such as battery packs or containers.
[0113] The loads 10 may be battery packs or any other loads, such as containers, in particular cargo containers.
Claims
CLAIMS 1. System for holding loads placed on a floor (6) of a storage space (4), for example a storage space (4) of a floating marine structure, the storage space being delimited by side walls, the holding system comprising one or more spacer devices (14), each spacer device (14) being configured to be inserted between two loads (10) or between a load (10) and a side wall (8) of the storage space (4) by exerting a spreading force between the two so as to wedge the loads between at least two opposite side walls (8) of the storage space (4), each spacer device (14) being adjustable so as to adjust and maintain the spreading force exerted by the spacer device (14).
2. Load holding system according to claim 1, wherein each load (10) or each spacer device (14) bearing against a side wall (8) is bearing against this side wall (8) via one or more buffers (24).
3. Load holding system according to claim 1 or 2, comprising friction linings (20, 22) provided in such a way that the loads (10) and the spacer device(s) (14) bear against each other and against the side walls by means of the friction linings (20, 22).
4. Load holding system according to claim 3, wherein the friction linings (20, 22) are configured in such a way that the coefficient of friction between two of the friction linings (20, 22) in mutual contact is equal to or greater than 1.5, in particular 2.
5. Load holding system according to any one of the preceding claims, in which the loads (10) and the spacer device(s) (14) are in plane support against each other, along support surfaces perpendicular to the ground (6).
6. Load holding system according to any one of the preceding claims, in which each spacing device (14) comprises two support elements (30) movable relative to each other in a spacing direction (E) between a close position and a spaced position, and an adjustment mechanism (32) configured to adjust and maintain the spacing between the two support elements (30).
7. A holding system according to claim 6, wherein the support elements (30) are elongated and extend parallel to each other.
8. A load holding system according to claim 6 or 7, wherein the adjustment mechanism (32) comprises a wedge (34) disposed between the two elements support (30) being movable in an adjustment direction (R), the movement of the wedge (34) in the adjustment direction (R) modifying the spacing between the support elements (30) in the spacing direction (E).
9. Load holding system according to claim 8, wherein the wedge (34) comprises a wedge portion (36) or several wedge portions (36) distributed along the wedge (30), for example along the adjustment direction (R).
10. Holding system according to claim 9, in which each wedge portion (36) is received between two internal bearing surfaces (30C) of the bearing elements (30) located opposite one another, the internal bearing surfaces (30C) extending in the adjustment direction (R) converging in a first direction, the movement of the wedge (34) in said first direction causing the bearing elements (30) to move apart.
11. Load holding system according to any one of claims 6 to 10, in which the adjustment mechanism (R) comprises a screw / nut system (40) comprising a screw (42) the rotation of which controls the spacing or bringing together of the support elements (30).
12. A load holding system according to claim 11 in combination with any one of claims 8 to 10, comprising a base (44) on which the screw (42) is rotatably mounted and a thread (34A) provided in the wedge (34) in which the screw (42) is engaged, rotation of the screw (42) making it possible to adjust and maintain a distance between the base (44) and the wedge (34).
13. Unloaded holding system according to claim 12, in which each support element (30) is connected to the base (44) by a sliding connection (50) allowing the movement of the support element relative to the base in the separation direction (E) and preventing the movement of the support element relative to the base in the adjustment direction (R).
14. Battery assembly comprising a storage space (4), for example a storage space of a marine structure, the storage space (4) being delimited by a floor (6) and side walls (8), battery packs placed on the floor (6) in the storage space (4), and a holding system (10) according to any one of the preceding claims arranged so as to keep the battery packs, constituting the charges, wedged between the side walls of the storage space (4).
15. A floating marine structure, in particular a ship, comprising a battery assembly according to claim 14.