DE102019112358A1 - Modular system for assembling a device for storing electrical energy - Google Patents

Abstract

The invention relates to a system for assembling a device for storing electrical energy from a plurality of modules, the system having a plurality of modules of at least one type, each module containing a plurality of cells for storing electrical energy. A plurality of modules can be arranged both next to one another and one above the other, in particular stacked one on top of the other and next to one another, and can be mechanically connected to one another and electrically contacted with one another in such a way that the modules form a device for storing electrical energy.

Description

The invention relates to a system for assembling a device for storing electrical energy from a plurality of modules and to a device for storing electrical energy assembled from a plurality of modules.

Modular systems are known from the prior art which provide a number of modules from which a device for storing electrical energy can be assembled. In many applications, individual modules are installed in so-called racks. The racks typically have corresponding slots or similarly designed fastening elements with which the form factor of the individual modules is compatible. The individual modules in the racks can then be interconnected with one another using appropriate lines and in this way form a device for storing electrical energy. In these constructions, the racks absorb the weight of the individual modules and thus ensure the corresponding mechanical stability of the overall system. The weight of each individual module is typically absorbed by the rack and carried downwards. The individual modules themselves therefore typically have only one housing structure which is mechanically designed to only support the elements received in the respective module.

The advantage of such systems is that devices can be assembled from the systems which are specifically tailored to individual requirements. This can be done by simply selecting the modules and the racks in which the modules will be accommodated. Individual construction services, complex project planning or the like are not necessary in order to specifically manufacture a device assembled from such a system on the basis of individual requirements. This enables comparatively low prices, short delivery times and easy maintenance. For example, individual modules can be exchanged in a short time.

Nevertheless, such devices, as far as they are available according to the prior art, have disadvantages. For example, the racks required to assemble such a device dictate the form factor of the entire device. The racks are typically cabinet-like structures that only allow a limited variation in the form factor. Accordingly, suitable installation areas are required for such racks. Such devices for storing electrical energy, known according to the prior art, can generally not be set up in difficult to access, narrow and / or complexly shaped spatial areas.

The present invention is therefore based on the object of providing a system for assembling a device for storing electrical energy and a device for storing electrical energy, which enables a more flexible design of the device in terms of its form factor than is the case with systems known from the prior art and devices assembled on the basis of these systems is the case.

The object is achieved by a system and a device with the features of the independent claims. The claims of the dependent claims relate to advantageous embodiments.

The system for assembling a device for storing electrical energy from a plurality of modules has a plurality of modules of at least one type. Each module contains a number of cells for storing electrical energy. The system can also have modules of different types. In this case, the modules of the same type are identical, the different types differ in particular with regard to the elements arranged within the modules, but in particular have an identical basic shape with regard to their external dimensions.

The system makes it possible to arrange a plurality of modules next to one another as well as on top of one another and to mechanically connect them to one another and to make electrical contact with one another in such a way that the modules form a device for storing electrical energy. The advantage of a device formed in this way from a described system is that the shape of the resulting device can be determined comparatively freely by the way in which the modules can be arranged one above the other and / or next to one another. In this way, difficult-to-access, cramped and / or complexly shaped spaces or spatial areas can be used for the construction or installation of such a device (so-called “void spaces”). In other words, even a complexly shaped, difficult to access and cramped “niche” can be “bricked up” with the modules of such a system. In this way, in practice, in a large number of applications, a possibility can be created to use rooms or room areas that would otherwise hardly be usable for the erection and / or installation of a device for storing electrical energy.

This can play a role especially in maritime applications. The device can in particular be part of a watercraft. For hydrodynamic reasons, the hulls of watercraft typically have shapes that lead to the creation of a large number of rooms or spatial areas, the shape of which deviates - in some cases considerably - from the rectangular grid typical in buildings, for example. In addition, with watercraft there is often the need to use the available space as well as possible. The introduction of a corresponding device is often comparatively difficult due to the winding and narrow paths. In particular, this makes the handling of the racks known from the prior art, the external dimensions of which typically exceed the dimensions of the individual modules many times over, difficult or impossible. According to the system described, a device can advantageously be assembled from the modules without the use of a rack.

The modules can in particular be stacked one above the other or next to one another. It is conceivable that intermediate elements are arranged between the modules. The modules can preferably lie directly against one another, particularly preferably lie flat against one another. Alternatively and / or in addition, it is possible for intermediate elements to be arranged between the modules. These intermediate elements can in particular serve to connect the modules to one another. In particular, the intermediate elements can interact with connecting elements of the modules.

In particular, the system can have modules of different types. This enables greater flexibility with regard to assembling differently designed devices from the modules in question. The modules of different types can in particular have an identical basic shape. The same basic shape makes it easier to use different types of modules to assemble a device. In this context, it goes without saying, in particular, that the modules of different types can be mechanically connected to one another. In particular, the modules of different types have identical housing elements.

Modules of different types can have different internals, in particular different cells. However, the system preferably has a type of module in which a battery disconnect unit (BDU) is arranged inside the module. Alternatively and / or additionally, the system can have a type of module in which a battery management system is arranged inside the module. The system can also have a type of module in which both the battery separation unit and the battery management system are arranged inside. The system can also have types of modules in which spare parts, especially spare parts for the built-in other module types, documents, especially technical documentation of the system, fuses and / or electronic components, such as distributors and / or connection elements for electrical energy and / or data are included.

The battery management system can be connectable to other modules of the system. A connection of a battery management system to a module that contains a battery separation unit can enable the battery management system to control the battery separation unit. Furthermore, modules can have sensors. These are particularly suitable for measuring the temperature of a component of the respective module and / or an electrical operating variable, for example a voltage and / or a current. The connectivity of the sensors with the battery management system enables the battery management system to monitor and / or evaluate the data recorded by the sensors. In particular, the sensors can be connected to the battery management system according to the daisy chain principle. The connection between the battery management system and the sensors can be a data connection. This can be designed according to the master-slave principle. In particular, the sensors can be assigned to the slaves and the battery management system to the master. Alternatively and / or in addition, the sensors can be connected to the battery management system by a data bus system, for example a CAN bus. The modules can have suitable electronic connecting elements, in particular on their front sides, which serve to connect the battery management system to the sensors.

In particular, the modules each have a front side. As a result, the system can be designed in such a way that the front sides of all modules of a device which is assembled from the system point in the same direction. The front side can have an essentially rectangular, in particular an essentially square, basic shape. The lateral outer surfaces and the upper side and the lower side can be designed identically, in particular have identical connecting elements. In combination with the essentially square basic shape of the front side, this makes it possible to rotate the modules in 90 ° steps about an axis connecting the front side and a rear side of the modules opposite the front side and nevertheless to be arranged relative to one another in the manner described. In this way, the connection paths between the individual modules, in particular for the electrical connections, can be shortened.

The modules can have connecting elements for connecting the modules to one another. The connecting elements are arranged in particular on the outer surfaces of a module which are intended to point towards other modules when the device is being assembled. In particular, these are external surfaces that are intended to rest against other modules when the device is assembled. The outer surfaces are, in particular, lateral, upper and / or lower surfaces of a housing of the individual module. Whether the outer surfaces only point towards one another or are in contact with one another depends on the precise structural design of the connection between the modules. If the outer surfaces are in contact with one another, this is advantageous to the extent that forces, for example the weight forces of the modules stacked on top of one another, can be absorbed via the outer surfaces in contact with one another.

The connecting elements extend in particular along the outer surfaces of the modules. The connecting elements are preferably grooves which extend from the front of the modules in the direction of the rear of the respective modules. The grooves can in particular have a trapezoidal cross section. It is advantageous if the grooves provide undercuts that can be reached from behind by an intermediate element.

The modules can preferably be connected to one another in that an intermediate element is connected to the connecting elements of two adjacent modules. The use of an intermediate element offers the advantage that the connecting elements that are connected to one another can be designed identically and thus only complementary and / or. must be connectable to the intermediate element. It is not absolutely necessary for the connecting elements to be designed so that they can be connected to one another without using an intermediate element. This enables a simple design of the connecting elements, for example in the form of the grooves described above.

The intermediate element can be designed such that it can be clamped in the connecting element. In the case of the design of the connecting elements in the form of the grooves described above, there is then the possibility that the assembly takes place in that the adjacent modules are initially arranged in a suitable manner relative to one another. This can be done, for example, by stacking the modules on top of one another or placing them next to one another. In a further assembly step, an intermediate element can then be placed between the modules from the front of the modules. This can be done, for example, in that the intermediate element is pushed into the now adjoining grooves of the two modules from the front. For this purpose, a suitable tool can be used which makes it possible to move the intermediate element in the grooves in the direction of the rear.

In a further step, the intermediate element can be fixed by clamping the intermediate element in the connecting elements. For example, a suitable tool can be used to actuate a mechanism of the intermediate element which causes the intermediate element to jam in the connecting element. Such mechanisms can be based, for example, on a screw which causes a relative displacement of components of the intermediate element relative to one another, which leads to a “wedging” of the intermediate element in the connecting element.

In order to bring about sufficient mechanical stability, a plurality of intermediate elements can also be arranged between two adjacent modules. In the case of the example of the grooves described, a second intermediate element can be introduced into the groove, for example, which, however, is pushed a significantly shorter distance from the front of the modules towards the rear, so that it remains, for example, near the front. In this way, stable mechanical connections can be created in a simple manner both in the area of the rear sides of the modules and in the area of the front sides of the modules. All elements involved can be manipulated from the front. In this way, the device, which is composed of the modules of the system, can also be installed in confined and difficult-to-access spaces.

The system can have additional, further stabilizing agents. In particular, it is possible to connect the connecting elements of the modules to further stabilizing means. These stabilizing means are in particular elongated structures which are intended to span a plurality of modules arranged on an upper, lateral and / or lower edge area of a device assembled from the modules or to connect the individual modules to one another . The stabilizing means preferably also have suitable connecting elements to with the To be connected to connecting elements of the modules. The connection can also, in particular as described above, take place via intermediate elements. Alternatively and / or in addition, however, other connection options are also conceivable. The stabilizing means can also be designed in such a way that they can be connected to structures in the vicinity of the device. For example, the stabilizing means can be connectable to a floor on which the device is to be built. This can result in additional stability of the device, which in particular not only relates to the internal structural integrity of the device, but also makes it possible to fix the device as a whole in a simple manner by using the connecting elements of the modules in particular will. This can be of particular advantage if the place of use of the device is subject to movements, as is the case, for example, with watercraft.

The housings of the modules can in particular have a housing part which is produced as an extruded part. It goes without saying that a module can also have a plurality of housing parts designed as extruded parts. It is preferred that the extruded part provides the outer surfaces on side surfaces of the top and the bottom of the respective module. The extrusion direction is selected in particular such that it runs parallel from the direction pointing from the direction of the front side in the direction of the rear side. In this way, the housing part forms a frame-like and / or honeycomb-like basic structure for the module. The basic shape of the cross section of the housing part is in particular square. The connecting elements, which are in particular grooves, can be molded into the housing part, in particular already during the extrusion process. Such an extrusion process is also particularly suitable for producing housing parts of the same cross section in different lengths in a simple manner.

The housing of the modules, in particular the housing part, can be made of an aluminum alloy. Aluminum can be processed particularly well by extrusion. The aluminum alloy can in particular be a wrought aluminum alloy of group 5XXX. These are aluminum-magnesium alloys, which are characterized by good strength and corrosion resistance, especially against seawater.

The modules can deviate from an exact rectangular, in particular square, shape, particularly in the area of their corners, in their cross section. In particular, the cross-sections of the modules can set back compared to a rectangular design, in particular one or a plurality in the area of corners. This can be implemented, for example, in that the modules have bevels, roundings or the like in the region of their edges which connect the front sides with the rear sides. If the modules then lie against one another with these edges, a cavity results at the point at which the edges of the modules would rest against one another in a strictly square shape. In particular, the cavity forms a passage between adjacent modules which extends from the front of the device to its rear. Advantageously, a cavity is thus formed between - in particular four - mutually adjoining modules which extends from the front to the rear of the modules. Such a cavity can in particular be used to lay lines, for example electrical lines and / or lines for cooling liquid, from the rear of a device composed of the modules to its front.

It goes without saying that, as an alternative to a corresponding design of the corners of the cross section of the modules or of the edges of the modules, a corresponding recessed area can also be provided in the area of an outer surface of the modules. If the corresponding modules then rest against one another with the outer surfaces, a corresponding recessed area, which extends from the front of the module to the rear of the module along the outer surface, can also form a corresponding passage between the rear of a device composed of the modules and the Form the front of a device composed of the modules.

The modules can be liquid-cooled. The liquid cooling system can in particular have connection elements which are arranged on the front sides and / or rear sides of the modules. The connection elements are preferably arranged in the region of corners of the front sides of the modules. Such liquid cooling enables the cells which are arranged in the modules to be effectively cooled. In particular, a tube which is arranged in a module can form a continuous connection between two connection elements of this module. In other words, a connection element of the module is connected directly to another connection element of the module via a continuous tube. The continuous tube can in particular be made of a metallic material. Metallic materials have good thermal conductivity. The continuous design of the tube means that the risk of leakages within the module is minimized. The liquid cooling can in particular be designed in such a way that at least two continuous tubes in each module - that is, in total four per module - connect connection elements. The two tubes are then preferably arranged within the module in such a way that they can cool the cells arranged within the module in the region of their poles.
The modules preferably have electrical contact elements on their front sides for making electrical contact with the modules. In particular, the cells arranged in the modules are contacted. The contact elements are easily accessible on the front sides, so that the individual modules can be contacted after the device has been assembled. The individual contact elements are preferably arranged in the area of opposite corners of the front sides of the respective module. An arrangement in the area of opposite corners of the front side of the respective module is to be understood in particular to mean that the distance between the contact element and the corner in whose area the contact element is arranged is shorter than the distance between the contact element and other corners of the front side of the respective module. This is particularly advantageous in combination with the possibility of arranging the modules rotated in increments of 90 ° around their longitudinal axis. In this way, the poles can be aligned according to the position of the poles of neighboring modules to which the respective poles are to be connected. The electrical connection can thus take place over a short distance.

The cells arranged in the modules can be connected to receiving elements. A primary function of the receiving elements is to ensure that a plurality of individual cells, which are arranged in a module, can be handled as a structural unit. The receiving elements can have receiving contours for at least partially receiving the individual cells. This ensures that the cells are securely seated in the receiving elements.

The cells can be arranged between two receiving elements. The two receiving elements can be connected with connecting elements, for example with threaded rods, in order to fix the cells between the receiving elements. The mechanical unit of receiving elements and cells that results in this way is characterized by high mechanical stability and easy handling as a unit.

The modules are preferably designed in such a way that the receiving elements with the cells can be introduced into the modules from the direction of the front side and / or removed from the modules in the direction of the front side. In particular, the modules are designed in such a way that the receiving elements with the cells and together with the respective paneling of the front side can be removed from the modules. This enables the “inner workings” of the modules to be exchanged in a simple manner. In this way, an entire device does not have to be dismantled again if, for example, a cell in a module is defective. The exchange can then take place in a simple manner in such a way that the interior of the module is exchanged from the front.

The modules can have guide elements for guiding the receiving elements when inserting and / or removing the receiving elements with the cells. Such guide elements, which can be grooves in a housing part of the module, for example, facilitate insertion in particular by supporting the end facing the rear of the module when the “inner workings” of the module are inserted.

The modules can have contacting elements for electrically and / or thermally conductive contacting of the cells. The contacting elements can in particular bring about a thermally conductive connection between the cells and liquid cooling of the modules. As a result, the contacting elements can support the cooling of the cells in a meaningful way. For this purpose, the contacting elements have, in particular, components made of metal, for example made of copper. The contacting elements ensure the thermally conductive connection, in particular between the poles of the cells and the liquid cooling of the modules. The contacting elements can in particular be connected to the poles of the cells. The connection can be a screw connection and / or a welded connection. On the one hand, in connection with screwable poles, this has the advantage of simple connectivity, with good heat-conducting contact being created at the same time in the area of the screw connection. In addition, particularly in the area of the poles, strong heat generation can occur when the cells are in operation. The contacting elements can be designed in plate form. The heat dissipation from the cells can in particular take place in such a way that the heat flows from the interior of the cells to the poles, there via the connection between the poles and the contacting element into the contacting element. The poles can in particular be connected to the poles by a contact layer, from which the heat is passed on to a heat-conducting layer via an electrical insulating layer. The electrical insulating layer can consist, for example, of a thermally conductive plastic. The heat can in particular be passed on from the heat-conducting layer to a pipe for the liquid cooling.

The contacting elements bring about, in particular, a thermally conductive connection between the cells with liquid cooling pipes arranged within the modules. The contacting elements and the cells together with the tubes and receiving elements can preferably be removed in the direction of the front side of the modules or introduced into the modules from the direction of the front side. In this way, the liquid cooling of the modules can be integrated into the "as a unit" exchangeable arrangement of the "inner workings" of the modules.

The contacting elements can bring about electrical contacting of the cells. In particular, the contacting elements can provide an electrical connection between the cells and electrical contact elements arranged in the area of the front side of the modules. This means that there is no need for cabling. On the one hand, this simplifies the structure and, on the other hand, cables are, at least largely, eliminated as a possible source of error when operating a correspondingly designed module.

• 1 eine schematische Darstellung eines beispielhaften Moduls,
• 2 das Modul aus 1 mit einem angeschnittenen Gehäuse,
• 3 eine aus einer Mehrzahl Modulen entsprechend der 1 zusammengesetzte Vorrichtung zur Speicherung elektrischer Energie,
• 4 die Vorrichtung aus 3, wobei bei einem der Module das Gehäuse weggelassen ist,
• 5 beispielhafte Einbauten der dargestellten Module in einer perspektivischen Schnittdarstellung,
• 6 eine Schnittdarstellung eines Details der Einbauten aus 5.

Further practical embodiments and advantages of the invention are described below in connection with the drawings. Show it:

• 1 a schematic representation of an exemplary module,
• 2 the module 1 with a cut housing,
• 3 one of a plurality of modules corresponding to FIG 1 composite device for storing electrical energy,
• 4th the device off 3 , whereby the housing is omitted from one of the modules,
• 5 exemplary installations of the modules shown in a perspective sectional view,
• 6th a sectional view of a detail of the internals 5 .

The exemplary system for assembling a device 10 has several modules for storing electrical energy 12 on. Each of the modules 12 contains a plurality of cells 14th for storing electrical energy. As in the example shown, these can be lithium-ion cells. The majority of cells 14th is for example in 2 to recognize. The modules 12 of the system can - as in the 3 and 4th - can be arranged next to each other (direction X) as well as one above the other (direction Y). A plurality of modules 12 forms such a device 10 for storing electrical energy, for example in the 3 and 4th from four modules each 12 is composed. The modules 12 can be mechanically connected to each other.

The modules 12 have a cuboid basic shape, with the front 16 preferably has a square basic shape as in the example shown. The individual modules 12 can be connected to one another in particular as in the example shown in such a way that the front sides 16 of all modules 12 point in the same direction and in particular lie in one plane.

The modules 12 can be fastened as in the example shown 18th to connect the modules 12 exhibit among each other. With the fasteners 18th it can be grooves as in the example shown. These can, in particular, as shown, along the depth direction Z of the modules 12 on external surfaces 20th of the modules 12 extend. As in the example shown, the connecting elements 18th be designed as grooves. In particular, as shown, the grooves are open towards the front. According to the example shown, the connecting elements 18th on the outer surfaces 20th of the modules 12 be arranged, which are intended when assembling the device 10 to other modules 12 to point out. These exterior surfaces 20th point in particular, as in the example shown, in the width direction X and / or height direction Y of the modules 12 or the device 10 .

The fasteners 18th which as in the example shown as to the front 16 can be designed towards open grooves, can have undercuts. As in the example shown, this can be done by a trapezoidal design of the cross-section of the grooves. To assemble the device, intermediate elements can be used according to the illustrated example 22nd with the fasteners 18th neighboring modules 12 get connected. The adjacent modules are then with their outer surfaces 20th to each other. This is especially true in the 3 and 4th shown. The intermediate elements 22nd can from the direction of the front 16 into the connecting elements designed as grooves 18th be inserted. The intermediate elements 22nd can then, as in the example shown, the undercuts of the connecting elements 18th reach behind and thus ensure a form-fitting connection. The intermediate elements 22nd can have a suitable tensioning mechanism that enables the intermediate elements 22nd in the fasteners 18th to brace. This provides a secure mechanical hold for the intermediate elements and thus a stable mechanical connection of the device 10 ensured.

The modules 12 can as shown in the area of the outer surfaces 20th Areas receding compared to the cuboid basic shape 24 exhibit. In the example shown, this is due to a bevel in the depth direction Z between two outer surfaces 20th extending edges realized. If there are a plurality of modules 12 to each other in the intended manner, so form the recessed areas 24 Passages from the front 16 of the modules 12 to her back. These can, for example, as in the 3 and 4th shown used to make cooling pipes 26th to lay through the passages.

The modules can be liquid-cooled. In this case it is advantageous if - as in particular in the 1 and 2 to recognize - connection elements 28 on the front 16 of the modules 12 are arranged. The liquid cooling can in particular be designed in such a way that continuous pipes 30th the connection elements 28 on the front 16 of the modules 12 connect.

The modules can have connections on their front side as shown 60 for a data bus. With the data bus, slaves 64 connected to the battery management system.

The modules can have contact elements 32 for electrical contacting of the modules 12 exhibit. This can also be done as shown on the front 16 of the modules 12 be arranged. The contact elements are preferably located 32 in the area of opposite corners of the front 16 of the respective module 12 . The arrangement of the contact elements in the area of opposite corners of the front 16 of a respective module 12 In connection with the possibility of arranging the modules rotated in 90 ° directions around their axis in the depth direction Z, it enables short connection paths for the electrical connections between the individual modules 12 to realize. This is especially true in the 3 and 4th clearly visible. This arrangement of the contact elements 32 is especially for the production of a serial connection of the individual modules 12 suitable. Because of the very short lengths of the cables 62 There is a very low line resistance between the modules. The modules 12 , each of which has four outer surfaces 20th with appropriate fasteners 18th that are oriented in the width direction X and the height direction Y can be rotated in steps of 90 ° and connected to one another. This leads to the electrical contacting of the individual modules 12 with short electrical connectors 34 can be realized.

The internals of the modules 12 can form mechanical units as shown. As in the example shown, this can be done using the 5 and 6th shown receiving elements 36 , 38 be made possible. The receiving elements 36 , 38 can - as in the example shown - with connecting elements 54 , which can be designed as threaded rods as in the example shown, be connected. The cells 14th can, in particular with their end areas, in receiving contours 56 the receiving elements 36 , 38 be partially included.

Contacting elements 58 can with opposite poles 40 of cells 14th be screwed. The mechanical unit from the internals and especially the front 16 can, as in the example shown, in a housing part designed as an extruded profile 42 be brought in. Especially the one from the front 16 of the modules 12 The side facing away from the internals can be guided via guides provided for this purpose 44 in the module 12 be supported.

The contacting elements 58 As in the example shown, in addition to the mechanical connection function, a thermally conductive connection between the cells can also be established 14th and the pipes 30th the liquid cooling of the modules 12 effect. In addition, the contacting elements 58 electrical contacting of the cells 14th effect. As in the example shown, a contacting element 58 - Also an electrical contact between the cells and the electrical contact elements 32 on the front side 16 of the modules 12 be effected.

The receiving elements 36 , 38 and / or the contacting elements 58 can be designed flat as in the example shown. To both the thermally conductive connection with the pipes 30th The contacting elements can also enable electrical contacting 58 as in the example shown, be built up flat and multilayered. The contacting elements 58 in particular an electrical insulation layer 48 on, between a, in particular metallic, heat-conducting layer 50 and an, in particular metallic, contact layer 52 is provided. The insulation layer 48 can in particular consist of a thermally conductive polymer. The contact layer 52 serves to establish the electrical contact while the heat conducting layer 50 , which can for example consist of copper or a copper alloy, a thermally conductive connection with the pipe 30th provides. Due to the flat connection between the heat conducting layer 50 and the electrical contact layer 52 the thermal contact between the two layers is good despite the electrical insulation applied between the layers. That way the heat can get over the screwing of the poles 40 from the cells 14th be discharged. From the poles 40 the heat is first passed through the electrically conductive metallic layer 46 over the insulation layer 48 to the heat conducting layer 50 passed on. The thermal conductive layer 50 returns the heat to the pipes 30th the liquid cooling of the modules 12 from. It goes without saying that the electrically conductive layer 46 May have interruptions to a suitable interconnection of the cells 14th to enable.

The features of the invention disclosed in the present description, in the drawings and in the claims can be essential both individually and in any combination for the implementation of the invention in its various embodiments. The invention is not restricted to the embodiments described. It can be varied within the scope of the claims and taking into account the knowledge of the competent specialist.

List of reference symbols

10

contraption

12

Modules

14th

Cells

16

front

18th

Connecting element

20th

Exterior surfaces

22nd

Intermediate element

24

recessed areas

26th

Cooling lines

28

Connection element

30th

pipe

32

Contact element

34

electrical connector

36

Receiving element

38

Receiving element

40

Pole

42

Housing part

44

guides

46

Electrically conductive layer

48

Insulation layer

50

Thermal conductive layer

52

electrical contact layer

54

Fasteners

56

Receiving contours

58

Contacting elements

60

Connections for data bus

62

cables

64

Slave

X

Width direction

Y

Height direction

Z

Depth direction

Claims (15)

A system for assembling a device (10) for storing electrical energy from a plurality of modules (12), the system comprising a plurality of modules (12) of at least one type, each module (12) having a plurality of cells (14) for storing electrical energy contains, wherein a plurality of modules (12) arranged both next to each other and on top of each other, in particular stacked on top of each other and next to each other, and can be mechanically connected to each other and electrically contacted with each other such that the modules (12) form a device (10) for storing electrical energy . System according to Claim 1 , characterized in that the system has modules (12) of different types, in particular the modules (12) of the different types having an identical basic shape, but different internals, in particular different cells (14). System according to Claim 1 or 2 , characterized in that the modules (12) each have a front side (16) and can be arranged during assembly of the device (10) in such a way that all front sides (16) point in the same direction, in particular lie in one plane. System according to one of the preceding claims, characterized in that the modules (12) have a rectangular basic shape, in particular wherein the front sides (16) of the modules (16) have a square basic shape. System according to one of the preceding claims, characterized in that the modules (12) have connecting elements (18) for connecting the modules (12) to one another, in particular wherein the connecting elements (18) of a module (12) on outer surfaces (20) of the module ( 12) are arranged, which are intended to point towards other modules (12) when the device (10) is assembled, in particular to rest against other modules (12). System according to one of the preceding claims, characterized in that the connecting elements (18) are grooves which extend from the front sides (16) to the rear sides of the modules (12) over the outer surfaces (20), in particular along the outer surfaces (20) ) on the side surfaces, the top and the bottom of the modules (12). System according to one of the preceding claims, characterized in that the system for connecting the modules (12) has intermediate elements (22) which are arranged between adjacent modules (12) when the device (10) is assembled, in particular with the connecting elements (18) adjacent modules (12) are connected. System according to Claim 7 , characterized in that the intermediate elements (18) and / or the modules (12) are designed so that the intermediate elements (22) when assembling the device (10) from the direction of the front side (16) into the, in particular designed as grooves, Connecting elements (18) of the modules (12) to be connected are introduced. System according to one of the preceding claims, characterized in that the modules (12) in the area of their outer surfaces (20) which are intended to point towards other modules (12) when the device (10) is assembled, areas (24) which spring back in relation to the cuboid basic shape and extend from the front side (16) to the rear side of the respective module (12) so that through the recessed areas (24) when the device (10) is assembled, passages between adjacent modules (12 ) which connect the front side (16) and the rear side of the device (10) to one another, in particular the cross sections of the modules (12) having the recessed areas (24) in the area of their corners. System according to one of the preceding claims, characterized in that the modules (12) have liquid cooling with connection elements (28) arranged on the front sides (16) of the modules (12), in particular with pipes (30) arranged in the modules (12) Form continuous connections between two connection elements (28) of a module (12). System according to one of the preceding claims, characterized in that the modules (12) have electrical contact elements (32) on their front sides (16) for making electrical contact with the modules (12), in particular the cells (14) arranged in the modules (12), have, in particular wherein the contact elements (32) of a module (12) are arranged in the area of opposite corners of the front side (16) of the respective module (12). System according to one of the preceding claims, characterized in that the cells (14) are connected to receiving elements (36, 38), in particular screwed, in particular with the cells (14) in the modules (12) between two receiving elements (36, 38) are arranged. System according to Claim 12 , characterized in that the modules (12) are designed such that the receiving elements (36, 38) with the cells (14), in particular together with the respective cladding of the front side (16), from the direction of the front side (16) into the modules (12) can be introduced and / or removed from the modules (12) in the direction of the front side (16), in particular wherein the modules (12) guide elements (44) for guiding the receiving elements (36, 38) during introduction and / or removal exhibit. System according to Claim 12 or 13 , characterized in that contacting elements (58) provide both a thermally conductive connection between the cells (14), in particular poles (40) of the cells (14), and the liquid cooling of the modules (12), in particular pipes arranged within the modules (12) ( 30) the liquid cooling of the modules (12), as well as electrical contacting of the cells (14), in particular electrical contacting of the cells (14) with electrical contact elements (32) on the front side (16) of the modules (12) and / or of the cells (14) with one another, cause. Device (10) for storing electrical energy, composed of a plurality of modules (12) of a system according to one of the preceding claims.

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