WO2019020788A1

WO2019020788A1 - Transportable stationary enclosure, for storing electrical energy storage modules

Info

Publication number: WO2019020788A1
Application number: PCT/EP2018/070406
Authority: WO
Inventors: Pierre Mas
Original assignee: Blue Solutions
Priority date: 2017-07-28
Filing date: 2018-07-27
Publication date: 2019-01-31
Also published as: FR3069564A1; FR3069564B1

Abstract

The invention relates to a transportable stationary enclosure (1), for storing pallets (2) of electrical energy storage modules (23), each pallet (2) being provided with a pad (260) for connection to an electronic management package, this enclosure (1, 1') containing at least one structure (3) for supporting said pallets, which comprises at least two pairs (30) of front (301) and rear (302) vertical posts, and a plurality of horizontal cross members (31). This enclosure is characterised in that each cross member (31) comprises a horizontal planar face (321), bounded at the rear by a transverse vertical wall (322) forming an abutment and on the side, by a guiding longitudinal vertical wall (323), in that the two longitudinal vertical walls (323) which face each other extend in planes converging from the front of the supporting structure (3) to the rear, and in that this enclosure comprises at least one rear vertical partition (4), behind the supporting structure (3), provided with a plurality of apertures (41) for said connection pads to pass therethrough.

Description

Transportable stationary shelter for storage of electrical energy storage modules

GENERAL TECHNICAL FIELD

The invention is in the field of so-called "stationary" electrical installations, (as opposed to installations installed on vehicles), that is to say installations that are stationary, once they have been installed in a single station. given place.

These installations contain modules for storing electrical energy as main and / or emergency power supply. They can be connected to the electricity grid directly or indirectly, or even be autonomous, that is to say be coupled to energy production means, such as solar panels or wind turbines, for example, which allow reload said modules.

The invention relates more particularly to a stationary, transportable shelter for storing electrical energy storage modules, more specifically for storing pallets of such modules.

STATE OF THE ART

Such shelters are particularly intended to be installed in remote areas, difficult to access, for example but not exclusively in Africa.

These "shelters", known by the English name of "shelters", make it possible to house not only modules for storing electrical energy, such as for example batteries, preferably Lithium Metal Polymer LMP batteries, but also various devices ensuring the electronic management of their operation and their security.

It is known from WO 2016/080741, a container internally equipped with support structures ("racks") for receiving modules for storing electrical energy. This support structure comprises simple sleepers mounted between vertical beams. No details are given in this document on the insertion of the modules or on their connection.

It is also known from documents EP 2 731 166 and US Pat. No. 8 900 737, a storage structure also comprising beams vertical, horizontal sleepers mounted between these beams and support plates inserted in each gap between two crosses facing each other. Such support structures are heavy and complex. Moreover, the associated wiring principle is also complex to implement.

PRESENTATION OF THE INVENTION

The invention therefore aims to solve the aforementioned drawbacks of the state of the art and to provide a shelter, provided with a support structure configured to receive pallets of electrical energy storage modules, to facilitate their insertion and to simplify their connection to the electronic management box.

To this end, the invention relates to a transportable stationary shelter, such as a transport container or a prefabricated shelter, for storing pallets of electrical energy storage modules, each pallet being provided with a connection pad to an electronic management unit, this shelter comprising side walls, a floor and a ceiling, which together delimit an enclosure, this enclosure containing at least one support structure of said pallets, this support structure comprising at least two pairs of vertical uprights, each pair comprising a front upright and a rear upright, and a plurality of horizontal struts attached to the two front and rear uprights of each pair of uprights, each of a pair of uprights being disposed at the same height as a transom of the pair of adjacent uprights, so as to define therewith a pair of cross supports a pallet.

According to the invention, each crosspiece of the support structure comprises a guiding part of the pallet, this guiding part comprises a flat horizontal support surface of the pallet, bordered at its rear end by a transverse vertical wall forming a stop of limit switch during the introduction of the pallet and bordered along its outer side, by a vertical longitudinal guide wall, the two longitudinal vertical walls of a pair of support rails of a pallet extend in planes converging from the front of the support structure to the rear and the shelter comprises at least one vertical partition, called "rear wall", disposed at the rear of the support structure, this rear wall being provided with a plurality of orifices for passing said connection pads, each orifice of passage being dimensioned and disposed in said rear wall so as to allow reception of the connection pad of one of the pallets of modules.

Thanks to these characteristics of the invention, and in particular to the presence of convergent longitudinal longitudinal walls, the module pallet is well guided during its insertion into the support structure and its connection pad is positioned correctly, ready to be connected to the connection pad of the pallet management box, which controls and controls the operating parameters thereof.

According to other advantageous and nonlimiting features of the invention, taken alone or in combination:

- The guide portion of the cross member is an independent shoe fixed on said cross;

the guide portion is made of a material promoting sliding, such as polytetrafluoroethylene;

the rear uprights and the front uprights are fixed at their two high and low ends respectively to the ceiling and the floor of the shelter;

the rear uprights are fixed by their respective upper ends to a fixing rail, called the "upper rear rail", in that the rear uprights are fixed by their respective lower ends to a fixing rail, called the "bottom lower rail", in that the front uprights are fixed at their respective upper ends to a fixing rail, the so-called "upper front rail", in that the front uprights are fixed at their respective lower ends to a fixing rail, referred to as "lower front rail". ", in that the two upper front and rear rails are fixed to the ceiling of the shelter, in that the two lower front and rear rails are fixed to the floor of the shelter and in that the uprights are fixed on said rails by removable fixing means and which make it possible to vary the spacing between two adjacent rear uprights and / or the spacing between two adjacent front uprights;

the said rear wall is made of a thermal insulation material;

said rear partition comprises at least one thermally insulating layer, such as a metal sheet laminate / thermally insulating material, such as rockwool / metal sheet;

said rear partition comprises at least one thermally insulating layer, such as a layer of cork. PRESENTATION OF FIGURES

Other features and advantages of the invention will appear from the description which will now be made, with reference to the accompanying drawings, which represent, by way of indication but not limitation, various possible embodiments.

On these drawings:

FIGS. 1 and 2 are perspective views of two possible embodiments of a storage shelter for pallets of energy storage modules according to the invention,

FIGS. 3 and 4 are perspective views of a possible embodiment of a pallet of electrical energy storage modules, respectively with and without said modules,

FIG. 5 is a perspective view showing an embodiment of the support structure according to the invention,

FIG. 6 is a diagrammatic and top view showing two crosspieces situated on either side of a reception space of a pallet of electrical energy storage modules,

FIGS. 7 and 8 are detailed and perspective views of part of the support structure of FIG. 5,

FIG. 9 is a perspective view of the support structure according to the invention, on which several rear walls and a few pallets of electrical energy storage modules have been represented,

FIG. 10 is a view from above and in detail of the rear part of a pallet of modules, of an electronic management box of said modules and of their respective connection pads, and

- Figure 11 is a perspective view and detail of another embodiment of the electronic management unit and its connection.

DETAILED DESCRIPTION The invention relates to a transportable stationary shelter for storing pallets of electrical energy storage modules.

Two exemplary embodiments of such a shelter, referenced 1 and 1 ', are respectively shown in FIGS. 1 and 2.

By "electrical energy storage module" is meant a unitary element, preferably of parallelepipedal shape, which groups together a plurality of electrical energy storage elements, such as batteries, for example LMP batteries (for "Lithium Metal Polymer "), connected in series.

By "pallet of electrical energy storage modules" is meant a set of several electrical energy storage modules, as mentioned above, arranged side by side, electrically connected to each other in series and electrically connected to a single connection pad.

An exemplary embodiment of such a pallet is shown in Figures 3 and 4 and will now be described in more detail.

This pallet 2 comprises a support plate 20, preferably rectangular.

The pallet 2 has a median longitudinal axis X-X '.

The support plate 20 is provided on its underside with two housings 21, parallel to each other and to the axis X-X ', which are intended to receive the two forks of a forklift.

The plate 20 has a plurality of spacers 22 projecting from its upper surface. These spacers are parallel to each other and perpendicular to the axis X-X '. Two spacers 22 neighbors are spaced apart by a distance sufficient to block and retain an electrical energy storage module 23. In the example shown in Figure 3, these modules 23 are six in number.

Moreover, an upper flange 24, connected to the support plate 20 by several vertical tie rods 25 makes it possible to hold said modules 23 in place.

The plate 20 further comprises at one of its ends a vertical rim 26.

The different modules 23 are electrically connected to one another, and are preferably connected in series. In addition, these different modules 23 are also electrically connected to a single electrical connection pad 260, which protrudes from the flange 26. As will be explained in more detail later, this connection pad 260 is intended to be electrically connected to a connection pad of a management box of such a pallet, known by the English name of "Battery Management System (or BMS ). "

By convention, the term "rear end 27", the end of the pallet which has the connection pad 260 and, "front end", the end 28 opposite. This definition is based on the direction of introduction of the module 2 inside the shelter 1, 1 ', as will be explained later.

A first embodiment of a transportable stationary shelter 1 will now be described with reference to FIG.

Such a shelter 1 is formed for example from a transport container. It could also be prefabricated. This shelter is obviously transportable only empty, that is to say before the pallets are loaded into it.

The shelter has the general shape of a rectangular parallelepiped.

This shelter 1 comprises vertical side walls 10, a floor 1 1 and a ceiling 12. This shelter 1 also comprises one or more access doors 13. The different side walls, the floor and the ceiling together define an enclosure 1.

In the embodiment of Figure 1, the shelter 1 comprises six doors 13, three on each longitudinal side, mainly to limit the weight of each of these doors and their size. However, in the embodiment shown in Figure 2, the shelter, referenced then 1 ', comprises only two doors 13 on each longitudinal side. The other identical elements bear the same numerical references.

The enclosure 14 contains at least one support structure 3 of said pallets 2. This support structure 3 could also be called "rack". It will now be described in connection with FIG.

By convention, the front side AV of the support structure 3 will be referred to as the side by which the pallets 2 are introduced therein and, on the back side, the opposite side.

The support structure 3 comprises at least two pairs of vertical uprights. Each pair 30 includes a front post 301 and a rear post 302.

In the example shown in FIG. 5, the support structure 3 comprises seven pairs of uprights, which delimit between them six spaces. vertical lines 33 inside which are introduced the pallets 2. This number of pairs is not limiting. In other words, n + 1 pairs of uprights define between them n vertical spaces 33.

The pairs 30 are arranged so that the front uprights 301 are aligned with each other and that the rear uprights 302 are also aligned with each other.

In each pair of uprights, a plurality of horizontal crosspieces 31 are attached respectively to the two front uprights 301 and rear 302.

The horizontal crosspieces 31 appear better in FIG.

They are fixed to the uprights, preferably by their respective ends before 31 1 and rear 312.

This attachment is preferably made by welding, as can be seen in Figure 7. However, it could also be achieved by any other suitable fastening means, for example by bolting.

More preferably, each horizontal crossbar 31 has the shape of an L-shaped angle, with a vertical branch 313 and a horizontal branch 31.

The vertical branch 313 is directed downwards. Furthermore, the L-shaped brackets 31 of two adjacent pairs of uprights (arranged on each side of a vertical space 33) are arranged so that their respective horizontal branches 31 face each other.

Finally, each of the crosspieces 31 of a pair of uprights 30 is arranged at the same height as a cross member 31 of the pair of neighboring uprights so as to define therewith a pair 34 of crosspieces 31 on which a pallet 2 can be inserted by sliding.

It will be noted that the vertical uprights arranged at the two ends of the shelter 1, 1 'are narrower than the uprights arranged in the center because they support sleepers 31 only on one side, unlike other vertical uprights that support on both sides.

In addition, a vertical partition 4 is also disposed inside the enclosure 14 of the shelter 1, 1 '. More specifically, this partition 4 is disposed facing the rear end of the support structure 3. This partition 4 is called "rear wall". It is visible for example in Figures 2 and 9. This rear partition 4 is pierced with a plurality of through openings 41. The structure and role of this partition 4 and its orifices 41 will be described later.

As best seen in the detail views of FIGS. 7 and 8, each crosspiece 31 includes a guide portion 32.

Preferably, and as shown in these figures, this guide portion 32 is constituted by an independent element or shoe, of elongated shape, of small thickness, attached, more precisely fixed to the crosspiece 31. This guide portion 32 is fixed there for example, by screwing.

This guide portion 32 has a horizontal flat face 321, intended to support a portion of the pallet 2, more precisely its longitudinal sides, or those of the support plate 20 in the embodiment shown in Figures 3 and 4.

The flat face 321 is bordered at its rear end by a transverse vertical wall 322 which projects from said flat face 321.

In addition, this flat face 321 is also bordered along its outer longitudinal side, (ie "outside" with respect to the vertical space 33 or in other words its inward side of the uprights 301. 302) by a vertical longitudinal guide wall 323.

Advantageously, the guide portion (or shoe) 32 is made of a material promoting sliding or is covered with a layer of such material. This material is, for example, polytetrafluoroethylene (PTFE).

Each vertical space 33 has a median vertical plane P1 (see FIGS. 5 and 6) which extends parallel to the vertical median planes of the various pairs of uprights.

Moreover, as can be seen in FIG. 6, the two longitudinal vertical walls 323 of two crosspieces 31 situated at the same height and facing each other extend in vertical planes that are not perpendicular to each other. parallel to the median plane P1.

These two longitudinal vertical walls 323 converge from the front to the rear of a pair 34 of sleepers. They form with the plane P1 a low angle alpha, for example a few degrees, preferably 1 to 2 degrees.

In other words, the distance D1 between the front ends of the two longitudinal vertical walls 323 facing each other is greater than the distance D2 between the rear ends of these same vertical walls 323. Furthermore, the transverse vertical wall 322 serves as an end stop when the pallet 2 is introduced.

Thus, during the introduction of a pallet 2 by sliding on the guide portions 32 of a pair 34 of crosspieces, from the front end thereof to the rear, the pallet 2 is guided until bottom, in the direction of the vertical partition 4, to abut against the walls 322. Preferably, the distance D2 corresponds to the clearance close to the width of the pallet 2. When the pallet 2 is at the bottom, it is thus maintained laterally.

The passage holes 41, formed in the partition 4, are arranged so that when the pallet 2 of electrical energy storage modules is inserted on the guide portions 32 to abut against the vertical walls 322, the connection pad 260 engages in the passage opening 41, at least over part of the depth thereof. This situation is shown for example in Figure 9 for the four through holes 41 from the top.

Advantageously, the rear wall 4 is made of a thermal insulation material.

Preferably, this rear wall 4 comprises at least one layer of thermally insulating material, such as a laminate with three layers: metal sheet / thermally insulating material (for example rock wool) / sheet metal. It is also possible to use a layer of cork, waterproof and fireproof material.

Management boxes 5 of a pallet of modules (BMS boxes) are fixed on the side of the rear wall 4 opposite to that facing the pallets 2.

In the embodiment shown in FIGS. 9 and 10, the BMS package 5 comprises an integrated connection pad 50, which protrudes from its outer surface. The BMS housing is mounted so that this stud 50 is introduced at least partly into the through hole 41 of the rear wall 4.

Furthermore, when the pallet 2 is inserted in a pair 34 of crosspieces, until its bottom comes into contact with the vertical walls 322, its connection pad 260 is coupled with the connection pad 50. Thus, the modules of FIG. a pallet 2 can be controlled by the BMS box 5.

According to another variant embodiment shown in FIG. 11, the BMS box, which then bears the reference 5 ', may have an independent connection pad 50' to which it is connected by electric cables 51 '. In this case, only the connection pad 50 'is inserted slightly in the orifice 41 to be coupled with the connection pad 260.

The use of the shelter 1, 1 'will now be described.

An operator opens the doors 13 of the shelter 1 or 1 'and can then insert one or more pallets 2 using, for example, a forklift truck, by sliding them on the guide portions 32, until their connection pads 260 are coupled to the connection pad 50 or 50 'of the BMS boxes 5 or 5'. It will be observed that, since the BMS boxes 5, 5 'are placed on the other side of the thermally insulating partition 4, they can be maintained at a temperature lower than that prevailing on the side where the pallets of modules 2 are housed.

In the exemplary embodiments shown in FIGS. 1 and 2, the zone where the BMS boxes 5, 5 'are arranged is accessible on one side of the shelter, while the zone where the pallets 2 of modules are inserted or extracted. is accessible through the other longitudinal side of the shelter. The operator then closes the doors 13.

Finally, in a simplified version, the uprights 301, 302 are fixed directly to the floor 11 or the ceiling 12, at both ends.

However, advantageously, it is possible to fix these uprights so that they can be moved laterally.

The various rear uprights 302 are for example fixed by their respective upper ends to a fixing rail, for example U, said "upper rear rail" 35, and their respective lower ends, to a so-called fixing rail "lower rear rail 36. Similarly, the front uprights 301 are fixed at their respective upper ends to a so-called "upper front rail" 37 and at their lower ends to a "lower front rail" 38.

The four rails 35, 36, 37, 38 are parallel to each other. In addition, the two lower front rails 38 and rear 36 are fixed to the floor 11 of the shelter, while the two upper front rails 37 and rear 35 are fixed to the ceiling 12 of the shelter.

The rails 35, 36, 37, 38 are shown only partially in FIG. 5, for simplification purposes.

The vertical uprights 301, 302 are then fixed on said rails 35, 36, 37, 38 by removable fixing means and which allow the amounts to be fixed at different points of these rails, so as to be able to vary the spacing between two neighboring rear posts and / or the spacing between two studs before neighbors. This makes it possible to transform a shelter to adapt it, for example, to modules and therefore to pallets of modules of different widths.

For example, it is possible to provide series of holes spaced in each rail 35, 36, 37 and 38 and to screw the uprights to choose from one of these holes.

The material constituting the uprights, sleepers and rails is advantageously metal, for example stainless steel.

Such a material makes it possible to support pallets 2, the weight of each of which can reach several hundred kilograms, for example between 300 and 500 kg.

Claims

1. Transportable stationary shelter (1, V), such as a transport container or prefabricated shelter, for storing pallets (2) of electrical energy storage modules (23), each pallet (2) being provided with a connection pad (260) to an electronic management box, said shelter (1, 1 ') comprising side walls (10), a floor (11) and a ceiling (12), which together define an enclosure ( 14), said enclosure (14) containing at least one support structure (3) of said pallets, said support structure (3) comprising at least two pairs of vertical uprights (30), each pair (30) comprising a front pillar ( 301) and a rear post (302), and a plurality of horizontal crosspieces (31) attached to the two front (301) and rear (302) posts of each pair of posts, each of the cross members (31) of a pair (30). ) amounts are arranged at the same height as a cross of the pair of uprights (30) neighbor, so as to define av it is a pair (34) of supports support a pallet, this shelter being characterized in that each cross member (31) of the support structure (3) comprises a guide portion (32) of the pallet, in this guide portion (32) comprises a flat horizontal support face (321) of the pallet, bordered at its rear end by a transverse vertical wall (322) forming a limit stop when the pallet is introduced (2) and bordered along its outer side, by a vertical longitudinal guide wall (323), in that the two longitudinal vertical walls (323) of a pair (34) of cross supports a pallet s' extend in convergent planes from the front of the support structure

(3) to the rear, and in that this shelter comprises at least one vertical partition

(4), said "rear wall", disposed at the rear of the support structure (3), this rear partition (4) being provided with a plurality of passage holes (41) of said connection pads, each orifice (41) being dimensioned and disposed in said rear wall (4) so as to allow the reception of the connection pad (260) of one of the pallets (2) of modules.

2. Shelter (1, 1 ') according to claim 1, characterized in that the guide portion (32) of the crossbar (31) is an independent pad fixed on said crossbar (31).

3. Shelter (1, 1 ') according to claim 1 or 2, characterized in that the guide portion (32) is made of a material promoting sliding, such as polytetrafluoroethylene.

Shelter (1, 1 ') according to one of the preceding claims, characterized in that the rear uprights (302) and the front uprights (301) are fixed at their two upper and lower ends respectively to the ceiling (12) and to the floor (1 1) of the shelter.

5. Shelter (1, 1 ') according to one of claims 1 to 3, characterized in that the rear uprights (302) are fixed by their respective upper ends to a mounting rail, called "upper rear rail" (35). ), in that the rear uprights (302) are fixed at their respective lower ends to a fixing rail, said "lower rear rail (36)", in that the front uprights (301) are fixed by their respective upper ends. to a fixing rail, said "upper front rail (37)", in that the front uprights (301) are fixed by their respective lower ends to a fixing rail, said "lower front rail (38)", in that that the two upper front (37) and rear (35) rails are fixed to the ceiling (12) of the shelter, in that the two lower front (38) and rear (36) rails are fixed to the floor (1 1) of the shelter and in that the uprights (301, 302) are fixed on said rails (35, 36, 37, 38) by means of fixing means and able to vary the spacing between two rear uprights (302) neighbors and / or the spacing between two front legs (301) neighbors.

6. Shelter (1, 1 ') according to one of the preceding claims, characterized in that said rear wall (4) is made of a thermal insulation material.

7. Shelter (1, 1 ') according to claim 6, characterized in that said rear wall (4) comprises at least one thermally insulating layer, such as a metal sheet laminate / thermally insulating material, such as wool of rock / metal sheet.

8. Shelter (1, 1 ') according to claim 6, characterized in that said rear wall (4) comprises at least one thermally insulating layer, such as a layer of cork.