Portable power station

Abstract

The present invention relates to a portable power station (1) comprising: - a central unit housing (2) integrating a station management electronic board (4) and current converter means (5), and - at least one battery housing (3) integrating a battery structure (6) associated with a battery structure management electronic board (7). The central unit housing (2) and / or the battery housings (3) comprise (a) at least one input connector (10) adapted for charging the battery structures (6), and (b) at least one output connector (11) adapted for powering an electrical device. Furthermore, the central unit housing (2) and the battery housings (3) comprise - assembly means (8) for removable assembly between them and - removable electrical connection means (9) designed to electrically connect the battery structures (6) and the current converter means (5). Figure 1

Description

Title of the invention: Portable power station Technical field of the invention

[0001] The present invention relates to the technical field of portable power stations which include battery structures enabling the electrical supply of electrical equipment (for example in single phase 230V), these battery structures being able to be recharged from a suitable electrical source (electrical network, motor vehicle, renewable energy installation (wind turbine, solar panels), etc.). State of the art

[0002] There are many models of portable power stations that an individual or a professional can use on a site without mains power to power any type of electrical equipment.

[0003] Known portable power stations may have a determined power and capacity, but in this case, the corresponding equipment does not always meet the needs present.

[0004] Other types of stations may include a basic unit with a battery structure, to which an additional battery unit can be added to increase the energy and therefore the autonomy of the equipment.

[0005] However, such stations are not always easy to transport, transform, or handle; moreover, their modular nature can be a source of safety problems. Presentation of the invention

[0006] In order to overcome the aforementioned drawbacks of the prior art, the present invention proposes a portable power station which comprises:

[0007] - a central processing unit housing without a battery structure, which housing The central unit integrates an electronic station management board and current converters, and

[0008] - at least one battery housing incorporating a battery structure associated with a card battery structure management electronics,

[0009] which central processing unit housing is separate from said at least one battery housing,

[0010] which central processing unit housing and / or which battery housing(s) comprise:

[0011] (a) at least one input connector suitable for charging said battery housing(s) battery structures of said battery box(es), and

[0012] (b) at least one output connector suitable for powering a device electrical from said battery structure(s) of said at least one battery box,

[0013] said central processing unit housing and said battery housing(s) further comprising:

[0014] - removable assembly means, allowing removable assembly of said central processing unit housing with one of said battery housings, and said battery housings together, to obtain a unit assembly, and

[0015] - removable electrical connection means, designed to electrically connect at least the said battery structures of the said battery box(es), and the said current converter means of the said central unit box.

[0016] This results in a modular assembly that is very easily adaptable according to needs, either in terms of investment or in terms of use, and also very easy to move due to the removable assembly of its different components.

[0017] Other non-limiting and advantageous features of the power station according to the invention, taken individually or in all technically possible combinations, are as follows:

[0018] - said central processing unit housing and said battery housing(s) each comprise a top face, a bottom face and side faces, which boxes have a general parallelepiped shape whose horizontal sections, parallel to their top and bottom faces, are identical or approximately identical;

[0019] - said central processing unit housing is designed to constitute the upper housing of the assembly of stacked cases;

[0020] - said central processing unit housing is delimited by a top face, a bottom face and side faces; said battery housing(s) are delimited by a top face, a bottom face and side faces; at least some of said top and bottom faces of said central unit housing and said battery housing(s) include stacking means, to ensure lateral locking of said central unit housing with one of said battery housings, or of said battery housings with each other, once said housings are stacked; said removable electrical connection means include male-female type connectors provided on at least some of said top and bottom faces of said central unit housing and said battery housing(s), to make said electrical connection when stacking said housings;

[0021] and said removable assembly means are in the form of movable assembly members, provided on two opposite lateral faces of said central processing unit housing and battery housing(s), which assembly members are designed to occupy: (a) an unlocked inactive position in which the two housings concerned can be separated from each other, and (b) an active locked position, in which the two relevant housings are assembled with each other;

[0022] - said removable assembly means consist of closure systems lever-operated, of the toggle type, comprising a lever body equipped with an end-locking member, fixed on one of said housings, cooperating with a hook member attached to the other housing;

[0023] - the lever bodies of said lever locking systems are provided on said or said battery boxes, on the side of the top face of said battery boxes, and the hook elements of said lever locking systems are provided on said battery box(es) and on said central unit box, on the side of the bottom face of said central unit box and of said battery boxes;

[0024] - the portable power station includes position sensors for said assembly means, capable of detecting whether the latter are in an active position of assembling the cases or inactive of disassembling the cases, and it includes control means designed to prevent the charging of the battery structures by said at least one input connector, and to prevent the supply of current to an electrical device by said at least one output connector, if said assembly means between said cases are not all in an active position of assembling the cases;

[0025] - the position sensors of the assembly means are positioned at the level of the lever body of lever locking systems;

[0026] - the central processing unit housing and / or the battery housing(s) include at least one input connector suitable for charging said battery structures of said battery box(es) from a mains socket, and / or a photovoltaic panel installation, and / or the cigarette lighter device or the alternator of a vehicle;

[0027] - the portable power station includes a reinforcing cage adapted for wrap the assembled central processing unit case with at least one battery case,

[0028] which reinforcing cage delimits an internal protective volume,

[0029] which reinforcement cage is made up of two telescopic cage parts which cooperate with each other by means of telescopic profiles allowing the dimensions of said internal protection volume to be adapted according to the number of said battery boxes associated with said central unit box,

[0030] which reinforcement cage includes clamping nuts provided at the level of said telescopic profiles adapted to lock a chosen protective volume;

[0031] - The portable power station includes a transport trolley, for transport of the central processing unit casing assembled with at least one battery casing, possibly equipped with a reinforcing cage,

[0032] which transport trolley comprises a base platform mounted on casters, from which extends a backrest equipped with a handle for operation in its upper part,

[0033] which backrest comprises telescopic profiles allowing its length to be adapted according to the number of said battery boxes associated with said central unit box,

[0034] which transport trolley includes clamping nuts provided at the level of said telescopic profiles adapted to lock a chosen backrest length,

[0035] and which backrest further includes a tie-down strap adapted to secure the assembly of housings on said base plate and against said backrest.

[0036] The central processing unit enclosure preferably comprises:

[0037] - said output connector(s),

[0038] - said input connector(s),

[0039] - an inverter system for converting the voltage of battery structures to 230V, and power the output connector(s),

[0040] - a current converter system for converting to direct current (5V, 12V...) the current arriving at the input connector, and ensuring the charging of the battery structures,

[0041] - at least one on / off switch,

[0042] - a monitoring screen,

[0043] - at least one gripping handle.

[0044] Of course, the various features, variants, and embodiments of the invention can be combined with one another in various ways, provided they are not incompatible or mutually exclusive. Detailed description of the invention

[0045] In addition, various other features of the invention become apparent from the attached description made with reference to the drawings which illustrate non-limiting embodiments of the invention and where:

[0046] [Fig-1] is a schematic perspective view of a possible embodiment of a portable power station according to the invention, with its constituent housings disassembled from one another;

[0047] [Fig.2] is a schematic view of the rear side face of the central processing unit housing of the portable power station illustrated in [Fig.1];

[0048] [Fig.3] is a schematic view of the front side face of the central processing unit housing of the portable power station illustrated in [Fig.1];

[0049] [Fig.4] is a schematic view of the underside of the central processing unit casing of the portable power station illustrated in [Fig.1];

[0050] [Fig.5] is a schematic view of the top face of the central unit housing of the portable power station illustrated in [Fig.1];

[0051] [Fig.6] is a schematic view of an end side face of the central unit housing of the portable power station illustrated in [Fig.1];

[0052] [Fig.7] is a schematic view of an end side face of a battery case of the portable power station illustrated in [Fig.1];

[0053] [Fig.8] is a schematic view of the top face of a battery case of the portable power station illustrated in [Fig.1];

[0054] [Fig.9] is a schematic view of the bottom face of a battery case of the portable power station illustrated in [Fig.1];

[0055] [Fig. 10] is a schematic perspective view illustrating the assembly principle of the constituent housings of the portable power station illustrated in [Fig. 1];

[0056] [Fig. 11] is a schematic perspective view that illustrates the portable power station of [Fig.1] equipped with a reinforcement cage;

[0057] [Fig. 12] is a schematic perspective view illustrating the portable power station of [Fig.1] mounted on a transport trolley.

[0058] The portable power station 1 illustrated in [Fig.1] is arranged to allow the power supply of electrical equipment (for example in single phase 230V), by means of battery structures which can be recharged from a suitable electrical source (electrical network, renewable energy installation (wind turbine, solar panels), motor vehicle, etc.).

[0059] For this purpose, this portable power station 1 includes a central unit 2 associated with at least one battery box 3 (in this case two identical or similar battery boxes 3a and 3b).

[0060] The central unit housing 2 has a general parallelepiped shape, the external peripheral faces of which are detailed in figures 2 to 6.

[0061] This central unit 2 is devoid of an internal battery structure, and it integrates in particular an electronic station management card 4 and current converter means 5.

[0062] Each battery housing 3 also has a general parallelepiped shape, some of whose external peripheral faces are detailed in figures 7 to 9.

[0063] Each battery housing 3 incorporates a battery structure 6 associated with an electronic battery structure management board 7.

[0064] The central unit housing 2 is separate from the battery housing(s) 3. The battery housings 3 are preferably in number greater than or equal to two.

[0065] According to the invention, and to fulfill their function, the central processing unit housing 2 and the battery housings 3 comprise removable assembly means 8, allowing for removable assembly of the central processing unit housing 2 with one of the battery housings 3, and battery boxes 3 together, to obtain a unit set of juxtaposed boxes.

[0066] The portable power station 1 also includes removable electrical connection means 9, designed to electrically connect at least said battery structures 6 of said battery box(es) 3, and said current converter means 5 of said central unit box 2.

[0067] In addition, the central unit housing 2 and / or the battery housing(s) 3 include (a) at least one input connector 10 suitable for charging said battery structure(s) 6 of the battery housing(s) 3, and (b) at least one output connector 11 suitable for supplying an electrical device from the battery structure(s) 6 of the battery housing(s) 3.

[0068] The central unit housing 2 is delimited by a top face 21, a bottom face 22 and side faces 23 comprising a front side face 231, a rear side face 232 and two end side faces 233.

[0069] For its part, the battery housing 3 is delimited by a top face 31, a bottom face 32 and side faces 33 comprising a front side face 331, a rear side face 332 and two end side faces 333.

[0070] The horizontal sections of the central unit housing 2 and the battery housings 3, parallel to their top faces 21, 31 and bottom faces 22, 32, are identical or approximately identical, so that, once said housings 2, 3 are assembled together, a parallelepiped or approximately parallelepiped assembly is obtained.

[0071] In the embodiment illustrated in the figures, the portable power station 1 is structured so that the central unit housing 2 constitutes the upper housing of the assembly of superimposed housings 2, 3.

[0072] The various housings 2, 3 include stacking means 12, schematically illustrated in the figures, to ensure the lateral locking of the central unit housing 2 with one of the battery housings 3, or of said battery housings 3 with each other, once said housings 2, 3 are juxtaposed / superimposed, before their assembly by the assembly means 8.

[0073] These stacking means 12 advantageously consist of complementary hollow and protruding areas provided on the faces of the housings 2, 3 intended to come into contact, here in this case on the underside 22 of the central unit housing 2, and on the top 31 and underside 32 faces of the battery housings 3.

[0074] The removable electrical connection means 9 include male-female type connectors 91, 92 provided on the faces of the housings 2, 3 intended to come into contact, here in this case on the bottom face 22 of the central unit housing 2, and on the top faces 31 and bottom faces 32 of the battery housings 3.

[0075] Positioning the housings 2, 3 on top of each other causes the protruding male connector parts 92 to be embedded in the recessed female connector parts 91, thus achieving the desired electrical contact.

[0076] For example, the bottom faces 22, 32 of the central unit housing 2 and the battery housings 3 include the recessed female connector parts 91; and the top faces 31 of the battery housings 3 include the protruding male connector parts 92.

[0077] The removable electrical connection means 9 can be involved in the stacking function of the boxes and constitute all or part of the aforementioned stacking means 12.

[0078] The removable assembly means 8 allow the assembly of the central unit housing 2 with a battery housing 3 or of two battery housings 3, after their juxtaposition / superposition.

[0079] More specifically, the removable assembly means 8 are in the form of movable assembly elements, provided on two opposite lateral faces of the central processing unit housing 2 and the battery housings 3, which are designed to occupy:

[0080] - an unlocked inactive position in which both housings 2, 3 or 3, 3 those concerned can be separated from each other, and

[0081] - an active locked position, in which the two housings 2, 3 or 3, 3 concerned are assembled together.

[0082] These removable assembly means 8 may consist of lever locking systems 8, of the toggle type, comprising a lever body 81 equipped with an end hooking member 82, fixed on one of the housings 2 or 3, cooperating with a hook member 83 integral with the other housing.

[0083] In the illustrated embodiment, the assembly means 8 are provided on the two end lateral faces 233 of the housings 2, 3.

[0084] The lever bodies 81 with their end-locking member 82 equip the battery boxes 3; and the associated hook members 83 equip the central unit box 2 and the battery boxes 3.

[0085] More specifically, here, the lever bodies 81 of the lever locking systems 8 are provided on the battery housings 3, on the side of their top face; and the hook members 83 of the lever locking systems 8 are provided on the battery housings 3 and on the central unit housing 2, on the side of their bottom face 22, 32.

[0086] To simplify the figures, the assembly means 8 have been represented only on the attached figures 1, 6, 7 and 10, and on only one end lateral face 233, 333 of the housings 2, 3.

[0087] In [Fig.1] the housings 2, 3 are shown separated from each other, and therefore with the assembly means 8 in the unlocked inactive position.

[0088] In [Fig. 10], the portable power station 1 has been shown with the central unit housing 2 assembled with the battery housing 3a (and therefore with the assembly means 8 in their active locked position), this battery housing 3a being disassembled from the second battery housing 3b.

[0089] As can be seen in particular in [Fig. 1]:

[0090] - an input connector 10, suitable for charging battery structures 6, is provided on the rear side face 232 of the central processing unit case 2.

[0091] This input connector 10 is preferably adapted for charging battery structures 6 from several sources, for example from a mains socket, and / or a photovoltaic panel installation, and / or the cigarette lighter device or the alternator of a vehicle.

[0092] In one embodiment, several input connectors 10 can be provided on the central unit housing 2.

[0093] - several output connectors 11 (here three in number), adapted for the power supply of an electrical device from the battery structures 6 of the battery boxes 3, are provided on the front side face 231 of the central unit box 2.

[0094] - a control screen 13 is provided on the front side face 231 of the unit housing central 2.

[0095] - two on / off switches 14 and 14a are always provided on the front side 231 of the central unit 2 case, one to activate the use of output connectors 11, and the other to turn the entire central unit 2 on or off.

[0096] In alternative embodiments, these different components (input connector(s) 10, output connector(s) 11, control screen 13, or on / off switches 14 and 14a, and others possibly) can be provided on other faces of the central unit housing 2, or on certain faces of the battery housing(s) 3.

[0097] The central processing unit housing 2 and the battery housings 3 can be equipped with a handle, shown schematically and labeled 15 and 15a in the accompanying figures. This handle 15, 15a can be located on any face of the housings 2, 3. It is preferably located on their top face 21, 31, and can be either integral or attached separately. It can be designed to be removable and retractable within the dimensions of the housings 2, 3.

[0098] The central unit housing 2 and the battery housings 3 may include other functional elements, components or accessories to facilitate or optimize their operation.

[0099] For example, the battery housings 3 may include a battery charge status indicator to inform the user about the remaining charge of the battery structure 6 concerned.

[0100] According to a particularly interesting feature, the portable power station 1 includes a safety system capable of detecting whether the assembly means 8 are in an active position of assembling the housings 2, 3, or in an inactive position of disassembling the housings 2, 3, as well as control means designed to prevent the charging of the battery structures 6 by the input connector 10, and to prevent the supply of current to an electrical device by the output connector(s) 11, if at least one of said assembly means 8 is not in an active assembly position.

[0101] Such a feature allows the operation of the portable power station (for charging battery structures 6 or supplying current) only if the different boxes 2, 3 are correctly assembled together.

[0102] This security system here includes position sensors of the assembly means 8, and more specifically position sensors 16 of the movable lever body 81 of the lever locking systems 8.

[0103] These position sensors 16, illustrated in figures 1 and 10, consist of switches integrated here in the battery housings 3 on the power supply circuit of the battery structure management electronic board 7, and which are activated by the movable lever body 81 of the lever closing systems 8.

[0104] The switches 16 close the electrical circuit when the lever body 81 of a battery box 3 is in the active locking position on the associated hook member 83 of the central unit housing 2 or of another battery box 3.

[0105] An active locked pick position, with switch 16 in the closed position, appears in the upper part of [Fig. 10] (central unit housing 2 assembled with battery housing 3a); and inactive pick positions, with switches 16 in the open position, appear on [Fig. 1] and in the lower part of [Fig. 10] (central unit housing 2 and battery housings 3a, 3b disassembled).

[0106] The various functional components and accessories of the central unit housing 2 and the battery housings 3 are connected together in a suitable manner to fulfill the desired functionalities and safety features.

[0107] In a conventional manner, certain electrical connectors are adapted for the passage of high intensity currents and the transmission of the necessary upstream and downstream data.

[0108] The electronic station management card 4 is designed to manage the charging and discharging of battery structures 6, collect information reported by the electronic battery structure management cards 7, and ensure the safety of the user or equipment connected to the input connector 10 or the output connectors 11.

[0109] The current converter means 5 are designed to transform into direct or alternating current the currents returned by the battery box(es) 3, depending on the devices connected by the user.

[0110] These current converter means 5 advantageously comprise:

[0111] - an inverter system for converting the voltage of battery structures to 230V, and power the output connector(s) 11, and

[0112] - a current converter system for converting to direct current (5V, 12V...) the current arriving at the input connector 10, and ensuring the charging of the battery structures 6 and / or powering the output connector(s) 11.

[0113] The battery structure management electronic board 7 is designed to ensure the safety of the different battery structures 6 in terms of thermal heating and voltage ranges, distribute the charging power to the different cells constituting a battery structure 6 and send information specific to the lifespan and percentage of charge of the battery structure 6 back to the central unit box 2.

[0114] The battery structures 6 of the battery boxes 3 are for example made up of elements with Lithium-based chemistry forming an assembly storing 1500 to 2000 Wh of energy.

[0115] The different battery structures 6 of the assembled battery boxes 3 are connected in parallel.

[0116] Such a portable power station structure 1 gives it particularly interesting modularity characteristics. The user can adapt the number of battery boxes 3 associated with the central unit box 2 according to their needs and budget.

[0117] Once disassembled, the boxes 2 and 3 that make up the portable power station are easy to handle, transport and store, in particular because of their weight and size.

[0118] As illustrated in [Fig.1 1], the portable power station 1, consisting of its various assembled housings 2, 3, can be integrated into a reinforcement cage 17, ensuring its protection and facilitating its transport.

[0119] This reinforcement cage 17 delimits an internal volume V which is adapted to enclose the assembly consisting of the central unit housing 2 assembled with at least one battery housing 3.

[0120] The reinforcement cage 17 is preferably made of tubular metal profiles (for example, aluminum); it consists of two cage parts 171, 172 which cooperate with each other by means of telescopic profiles 171a, 172a allowing the dimensions of the internal volume V of protection to be adapted according to the number of battery boxes 3 associated with the central unit box 2.

[0121] Clamping nuts 173 are provided at the telescopic profiles 171a, 172a, adapted to lock a relative positioning of said telescopic profiles 171a, 172a corresponding to a chosen protection volume V.

[0122] The reinforcement cage 17 may include handle structures 174 to facilitate gripping and optimize the movement of the portable power station 1.

[0123] These handle structures 174 can be made in one piece by suitable bending of the profiles constituting the reinforcement cage 17, or added.

[0124] As illustrated in [Fig.12], the portable power station 1 made up of its various assembled boxes 2, 3, and possibly integrated into its reinforcement cage 17 can be associated with a transport trolley 18 to facilitate its movement.

[0125] This transport trolley 18 consists of a rolling trolley which includes a base platform 181 mounted on wheels 182, from which extends a backrest 183 equipped with a handling handle 184 in its upper part.

[0126] The backrest 183 includes telescopic profiles which allow its length / height to be adapted according to the number of battery boxes 3 associated with the central unit box 2.

[0127] Clamping nuts provided at the telescopic profiles are adapted to lock a chosen backrest length 183.

[0128] The transport trolley 18 further advantageously includes a lashing strap 185 adapted to lashing the assembly of housings 2, 3 on the base plate 181 and against the backrest 183.

Claims

1. Demands A portable power station (1), characterized in that it comprises: - a central unit housing (2) without a battery structure, which central unit housing (2) integrates a station management electronic board (4) and current converter means (5), and - at least one battery housing (3) integrating a battery structure (6) associated with a battery structure management electronic board (7), which central unit housing (2) is separate from said at least one battery housing (3), which central unit housing (2) and / or which battery housing(s) (3) comprise (a) at least one input connector (10) adapted for charging said battery structures (6) of said battery housing(s) (3), and (b) at least one output connector (11) adapted for supplying an electrical device from said battery structures (6) of said at least one battery housing (3),said central processing unit (2) and said battery pack(s) (3) comprising: - removable assembly means (8), allowing removable assembly of said central processing unit housing (2) with one of said battery housings (3), and of said battery housings (3) with each other, to obtain a unit assembly, and - removable electrical connection means (9), designed to electrically connect at least one battery structure(s) (6) to one or more battery boxes (3), and to one or more current converter means (5) to one or more central processing unit boxes (2), which power station is characterized in that it comprises position sensors (16) of the assembly means (8), capable of detecting whether the latter are in an active assembly position for the boxes (2, 3) or an inactive disassembly position for the boxes (2, 3), and in that it comprises control means designed to prevent the charging of the battery structures (6) by one or more of the said input connectors (10), and to prevent the supply of current to an electrical device by one or more of the said output connectors (11), if the assembly means (8) between the said not all housings (2, 3) are in an active position for assembling housings (2, 3).

2. Portable power station (1) according to claim 1, characterized in that said central unit housing (2) and said battery housing(s) (3) each comprise a top face (21, 31), a bottom face (22, 32) and side faces (23, 33), which central unit housing (2) and which battery housing(s) (3) have a general parallelepiped shape whose horizontal sections, parallel to their top (21, 31) and bottom (22, 32) faces, are identical or approximately identical.

3. Portable power station (1) according to any one of claims 1 or 2, characterized in that said central unit housing (2) is designed to constitute the upper housing of the assembly of stacked housings (2, 3).

4. A portable power station (1) according to any one of claims 1 to 3, characterized in that: - said central unit housing (2) is delimited by a top face (21), a bottom face (22) and side faces (23), - said battery housing(s) (3) are delimited by a top face (31), a bottom face (32) and side faces (33), in that at least some of said top faces (21, 31) and bottom faces (22, 32) of said central unit housing (2) and said battery housing(s) (3) comprise stacking means (12) for ensuring the lateral locking of said central unit housing (2) with one of said battery housings (3), or of said battery housings (3) to each other, once said housings (2, 3) are stacked, in that said removable electrical connection means (9) include male-female type connectors (91, 92) provided on at least some of said upper (21, 31) and lower (22,32) said central unit housing (2) and said battery housing(s) (3), to make said electrical connection when stacking said housings (2, 3), and in that said removable assembly means (8) are in the form of movable assembly members (81, 82, 83), provided on two opposite lateral faces (23, 33) of said central unit housing (2) and battery housing(s) (3), which assembly members (81, 82, 83) are designed to occupy:, - an unlocked inactive position in which the two relevant housings (2, 3) can be separated from each other, and - a locked active position, in which the two relevant housings (2, 3) are assembled with each other.

5. Portable power station (1) according to any one of claims 1 to 4, characterized in that said removable assembly means (8) consist of lever locking systems (8), of the toggle type, comprising a lever body (81) provided with an end hooking member (82), fixed on one of said housings (2, 3), cooperating with a hook member (83) integral with the other housing (2, 3).

6. Portable power station (1) according to claim 5, characterized in that said position sensors (16) of said assembly means (8) are positioned at the lever body (81) of said lever closing systems (8).

7. Portable power station (1) according to any one of claims 1 to 6, characterized in that said central unit housing (2) and / or said battery housing(s) (3) comprise at least one input connector (10), adapted for charging said battery structures (6) of said battery housing(s) (3) from a mains outlet and / or a photovoltaic panel installation, and / or the cigarette lighter device or the alternator of a vehicle.

8. Portable power station (1) according to any one of claims 1 to 7, characterized in that it comprises a reinforcement cage (17) adapted to enclose said central unit housing (2) assembled with at least one battery housing (3), which reinforcement cage (17) delimits an internal volume (V) of protection, which reinforcement cage (17) is made up of two telescopic cage parts (171, 172) which cooperate with each other by means of telescopic profiles allowing the dimensions of said internal volume (V) of protection to be adapted according to the number of said battery housings (3) associated with said central unit housing (2), which reinforcement cage (17) comprises clamping nuts (173) provided at the level of said telescopic profiles adapted to lock a chosen volume of protection (V).

9. A portable power station (1) according to any one of claims 1 to 8, characterized in that it comprises a transport trolley (18) for transporting said central processing unit (2) assembled with at least one battery pack (3), optionally equipped with a reinforcement cage (17), said transport trolley (18) comprising a base plate (181) mounted on casters (182), from which extends a backrest (183) equipped with a handle (184) in its upper part, said backrest (183) comprising telescopic profiles for adjusting its length according to the number of said battery packs (3) associated with said central processing unit (2), said transport trolley (18) comprising locking nuts provided on said telescopic profiles adapted to lock a chosen length of backrest (183), and said transport trolley (18) further comprising a lashing strap (185) adapted for secure the assembly of casings (2,3) on said base plate (181) and against said backrest (183).

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