Patent Publication Number: US-2022219920-A1

Title: Power supply module for a transport system, function unit, system, use, and arrangement

Description:
FIELD OF APPLICATION AND PRIOR ART 
     The invention relates to an energy supply module for a transport system, to a functional unit comprising an energy supply module, to a system for setting up a functional unit, to a use of an energy supply module and also to an arrangement having a transport path, a movable carrier and a functional unit. 
     A transport system refers to a system for transporting objects, for example objects to be packed or filled in the packaging industry. The transport system is for example a belt conveying system, a chain conveying system or a linear motor system and has at least one carrier. In the case of a linear motor system, the carrier is formed as a linear motor rotor, which is mounted movably in relation to a transport path formed as a linear motor path. The carrier can be moved or positioned along the transport path. In some designs, multiple carriers, for example up to 400 carriers, are provided on a transport path. In some designs, the transport path has a spatial extent of up to 30 meters. In combination with additional transporting belts, it is conceivable that the spatial extent of the transport path extends over 100 meters. These spatial extents are however only given by way of example and greater and smaller extents are conceivable. 
     EP 1 767 474 A2 shows multiple carriers, referred to as self-moving carriers, which have a traction motor of their own or are designed as linear motor rotors, and which have in each case a functional device designed as a gripper. With the gripper, products are gripped and sorted. The self-moving carriers are supplied with energy and data by way of a contactless energy transmission and modulated signals. 
     Problem and Solution 
     The invention addresses the problem of providing a flexibly usable energy supply for a transport system with multiple carriers that can be moved along a transport path, a functional unit for a transport system, an associated system and also a use and an associated arrangement. 
     This problem is solved by the energy supply module with the features of claim  1 , by the functional unit with the features of claim  5 , by the system with the features of claim  8  and also by the use with the features of claim  9  and by the arrangement with the features of claim  10 . Advantageous designs are described in the subclaims. 
     According to a first aspect of the invention, an energy supply module for a transport system with multiple carriers that can be moved along a transport path is provided, the energy supply module having a carrier interface with at least one carrier coupling element for mechanical coupling to a carrier of the transport system, a function interface with at least one electrical connection element for a functional device operated by electrical energy and a receiver, electrically connected to the at least one connection element, of a contactless energy transmission device for receiving energy for the functional device. 
     An energy transmission device comprises at least one stationarily or movably arranged energy transmitting device and at least one receiver, which can be arranged spatially separate therefrom and is provided on the energy supply module. 
     A functional device operated by electrical energy refers in connection with the application to a device which serves for carrying out a function on an object transported on the carrier and/or on an object provided along the line and to which electrical energy is supplied for this purpose. The function can in this case be chosen appropriately for an application with respect to working steps to be performed along the transport path. 
     In one design of the invention, it is provided that the functional device is a gripping or clamping system, in particular selected from the group comprising a vacuum gripping system and a mechanical jaw gripping system, and/or a turning system. In connection with the application, a vacuum gripping system refers to a system which has at least one vacuum pump that is supplied with electrical energy by the energy supply module. By means of the vacuum gripping system, objects to be gripped can be gripped. A mechanical jaw gripping system refers to a system which has movable gripping jaws by which objects to be gripped can also be securely gripped, the gripping jaws being individually activatable by supplying electrical energy. A turning system refers to a system by means of which an object can be turned or rotated when energy is supplied. Such a turning system serves in one design for the rotation of an element provided along the transport path. In other designs, the turning system is provided in combination with the gripping or clamping system, for example with the vacuum gripping system or the mechanical gripping system, in order to turn the objects to be gripped and position them appropriately for an application. The turning system comprises in one design an electrically drivable servomotor. Specific applications in which a use of carriers provided with functional devices serves a purpose are evident to a person skilled in the art, without exercising inventive skill, and so such a person also provides further suitable designs of a functional device for the respective specific application and/or combines them with new functional devices or the functional devices mentioned, without exercising inventive skill. 
     The energy supply module serves for supplying energy to a functional device that can be provided on the carrier of the transport system. The energy supply module comprises for this purpose a receiver, by means of which energy can be received from an external energy source, it being possible for this energy to be made available to the functional device at the at least one connection element. 
     The energy supply module is a separate unit which can be mechanically connected to the carrier and provides energy for different functional devices by way of connection elements. 
     The receiver interacts with an external energy transmitting device belonging to the energy transmission device. A person skilled in the art is familiar in this respect with both methods of contactless energy transmission in the near field and in the far field. In some designs, an inductive energy transmission in the near field is provided because of its high efficiency. 
     In some designs, the external energy transmitting device comprises an energy conductor running at least in some sections along the transport path. The energy conductor in one design runs along the entire transport path. In other designs, interactions are provided in some sections, for example in the region of curves or the like. The receiver performs a function of an antenna for receiving energy and in some designs surrounds the energy conductor, at least in some sections. In one design, the receiver is formed as a U-shaped collector. 
     The receiver is electrically connected directly or indirectly to the at least one connection element, and so energy for the functional device can be provided at the at least one connection element. The electrical connection comprises in advantageous designs electronic components by means of which the energy transferred to the energy supply module by means of the receiver is converted in a suitable form, buffer-stored or prepared in some other way for the functional device. 
     The at least one connection element can be suitably designed by a person skilled in the art according to the requirements of the functional devices. In one design, a DC voltage signal is provided at the connection element, a housing part of the energy supply module or of the carrier serving as an associated ground. Preferably, however, at least two connection elements for providing a DC voltage signal, for example of about 24 V, and a ground are provided. In addition to actuating elements, such as motors, pumps or the like, which require comparatively high power, usually provided on the functional device are controlling electronics, which require comparatively lower power. In one design, the energy supply module has for this purpose three connection elements in the form of exposed contacts. A first contact is designed as a ground connection for providing a reference potential. A second contact is designed as an energy load connection for supplying energy to the high-power actuating elements and a third contact is designed as an electronics load connection for supplying to electronic components and/or electronic circuits, in particular controlling electronics. The fact that an energy load connection and a separate electronics load connection are provided means that it is possible according to the situation to make an energy supply available only by way of one of these connection elements for the functional device, while interrupting an energy supply by way of the second connection element. 
     The carrier coupling elements serve for the mechanical coupling of the energy supply module to the carrier of the transport system and can be suitably designed by a person skilled in the art according to the design of the carrier. In one design, the energy supply module can be coupled to a carrier of a transport system designed as a linear motor system. Such a linear motor system comprises multiple carriers which are designed as a linear motor rotor or coupled to a linear motor rotor. The linear motor rotors can be moved along the transport path designed as a linear motor path. In further designs, the energy supply module can be used with other transport systems, for example with transport systems which allow continuous and discontinuous transportation of objects on carriers, such as belt conveying installations, roller or chain conveyors. 
     In some designs, mechanical coupling is realized by means of coupling elements based on principles of a form fit and/or a force fit, which allow fastening which can be released nondestructively without tools. Among these coupling elements are for example clamping means and latching means, means which mesh or lock in one another and/or means which form a tongue and groove connection. This makes it possible for a carrier to be quickly converted and/or an energy supply module to be easily exchanged when there is a defect. Alternatively, screw connections or the like and/or magnetic connections are provided. 
     In one design, the functional device is mechanically coupled to the carrier and is consequently mechanically coupled to the energy supply module only indirectly by way of the carrier. 
     In a development of the invention, it is provided that the function interface also has at least one function coupling element for mechanical coupling of the energy supply module to the functional device. This allows a secure mechanical connection of the modules to one another, by which a secure electrical connection for reliable energy transmission is also ensured. 
     In one design, the functional device comprises a communication device for communication with an external control device. In a development of the invention, it is provided that, by means of the contactless energy transmission device, data for and from the energy supply module can be transmitted from and to an external data transmission device. In one design, for this purpose the receiver is designed in such a way that, in addition to receiving energy, data transmission is also possible by means of the receiver. A data exchange for example during an energy transmission to the energy supply module takes place continuously contactless between the receiver and the external data transmission device is interrupted. For example, a data exchange is realized by way of a modulated energy carrier signal. In other designs, the external data transmission device comprises a data conductor running at least in some sections along the transport path. In some designs, the data conductor is arranged parallel to the energy conductor and is in data contact with the receiver, a data exchange being realized for example by way of inductive coupling in of a bus signal. In further designs, the data exchange between the energy supply module and the external data transmission device is realized by means of a communication device, provided on the energy supply module, in such a way that the external data transmission device is in radio range of the receiver and the data exchange consequently takes place by way of a radio transmission. Independently how the data transmission device is designed in relation to the energy supply module, in one design it is provided that the data of the functional device are made available with the energy carrier signal at the at least one connection element. In other designs, further connection elements are provided, data and supply energy being provided at different connection elements. 
     The data to be transmitted can be suitably chosen by a person skilled in the art according to the application. Data are for example operating data, in order to operate the functional device for a specific application or in a specific way, and/or process data, in order to enquire parameters of the functional device in the case of the specific application and/or transmit them to it for an application. The data can preferably be chosen dependent on the design of the functional device. In some designs, the functional device comprises a gripping system; operating data and/or process data in this case comprise for example gripping-jaw position values and gripping force values of a mechanical gripping system, negative pressure values of a vacuum gripping system. Alternatively or in addition, in some designs the functional device comprises a so-called turning system for turning an object provided on the carrier or along the line; operating data and/or process data in this case comprise for example turning position values of the turning system. 
     In a development of the invention it is provided that at least one energy and/or data store for storing energy and/or data from the and for the functional device is provided on the energy supply module. 
     In some designs, only an energy store is provided, serving for supplying to the electronic components and electronic circuits of the functional device and/or the energy supply module. The energy store makes available for example an amount of energy of 30 Watt seconds for the case where the supply of energy by way of the receiver happens to be interrupted or fluctuations in the supply of energy occur. A person skilled in the art is familiar with data and energy stores that are suitable for storing data from and for the functional device and also energy for the functional device. In some designs, the energy supply module has an energy store designed as a storage battery. In one design, charging of the storage battery takes place continuously as long as an energy transmission to the energy supply module takes place. In other designs, charging additionally or only takes place while the energy supply module is in a charging range. In the charging range, the receiver and the external energy transmission device are at a minimum distance from one another. A person skilled in the art is familiar with minimum distances with respect to different methods of contactless data and/or energy transmission, and so can choose these specifically for an application. 
     According to a second aspect of the invention, a functional unit is provided for connecting to a carrier of a transport system, the functional unit being made up of modules, comprising at least one functional module with a functional device and a previously described energy supply module, the functional module being electrically connected to the energy supply module for supplying energy to the functional module by means of the at least one connection element of the function interface and a complementary connection element of the functional module. 
     The functional unit is of a modular construction, a modular construction in connection with the application referring to a module-like construction made up of separate elements that are coordinated with one another. In the modular construction, individual modules are formed in such a way that they can be exchanged specifically for an application and/or when there is a defect, without this exchange requiring an exchange of a further module. 
     In one design, the energy supply module and the functional module are only mechanically coupled to one another indirectly by means of the carrier, not directly. In other designs, the energy supply module and the functional module of a functional unit are mechanically connected to one another by means of function coupling elements, it being possible for the functional unit to be mechanically connected to the carrier by way of the energy supply module. The carrier dictates the carrier interface and the energy supply module can be mechanically connected to the carrier in such a way that it can be released nondestructively by way of the carrier coupling element. In some designs, the carrier coupling element of the energy supply module and the function coupling element of the functional module are of the same design, and so, for an alternative application, the functional module can be directly connected to the carrier without an energy supply. In another design, the carrier coupling element and the function coupling element of the energy supply module are not of the same mechanical design. As a result, the energy supply module can only be mechanically connected to the functional module by way of the function coupling element, while the energy supply module can only be mechanically connected to the carrier by way of the carrier coupling element. 
     In further designs, multiple functional modules are mechanically and electrically connected to an energy supply module, the functional modules also being linked together and able to be at least electrically connected to the energy supply module. 
     In a further design, the mechanical connection in the form of the coupling elements and the electrical connection in the form of the connection elements are formed together at a function interface, and so, with the mechanical connection of the modules, an electrical connection between the energy supply module and the functional module is realized. 
     The functional module is designed specifically for an application, the functional module in one design having a gripping or clamping system, in particular selected from the group comprising a vacuum gripping system and a mechanical jaw gripping system, and/or a turning system. 
     In a development of the invention, it is provided that data can be transmitted between the functional module and the energy supply module by way of the at least one connection element of the function interface. 
     In some designs, the energy supply module makes a DC voltage, for example at 24 V, for the functional module available at the function interface, in one design a data exchange taking place by means of modulation of the carrier signal of the DC voltage. The connection elements are preferably designed as exposed contacts, in one design—as described above—three connection elements being provided. The functional module has three contacts formed as complementing the contacts of the energy supply module. In one design, the contacts of the functional module are designed as spring-loaded pins. 
     In a further design, a communication system is provided for the data exchange between the functional module, the energy supply module and/or the energy supply module and the external data transmission device, the communication system being a so-called IO-Link system according to the standard IEC 61131-9. In advantageous designs, the IO-Link system is used both for data communication between the external data transmission device and the receiver of the energy supply module and for data communication between the energy supply module and the functional module. 
     According to a third aspect of the invention, a system is provided for setting up a functional unit, comprising at least two functional modules with different functional devices and an energy supply module, it being possible for the at least two functional modules to be combined with the energy supply module appropriately for an application and to be at least electrically connected to the energy supply module by way of uniform interfaces in the form of the at least one connection element of the function interface. 
     In some designs, individual functional modules are in each case mechanically and electrically connected to an energy supply module by way of the uniform interface, the individual functional modules being able to be exchanged appropriately for an application by virtue of the respectively uniform interfaces. The functional devices are respectively designed in such a way that the power demand corresponds to the energy that is provided by the uniformly designed energy supply module. In some designs, the functional modules and the energy supply module have multiple uniform interfaces in the form of coupling elements and/or connection elements, positions of the functional modules on the energy supply module being variable as a result. 
     According to a fourth aspect of the invention, a use of an energy supply module with a functional device is provided, the energy supply module for supplying energy or for supplying energy and for exchanging data being at least electrically connected to the functional device by way of the at least one connection element of the function interface. 
     The energy supply module allows a functional device that requires electrical energy to operate to be provided on a carrier, the required energy being provided by an energy source that is not taken along on the carrier. In some designs, the data exchange, and consequently data communication, between the functional device and an external data transmission device is also ensured by means of the energy supply module. 
     According to a fifth aspect of the invention, an arrangement is provided, having a transport path in the form of a linear motor path, a movable carrier in the form of a linear motor rotor and at least one functional unit mechanically coupled to the carrier, the at least one functional unit being arranged on the carrier and the carrier being arranged on the transport path. 
     In some designs, the linear motor rotor is connected to the functional unit, it being possible for the functional unit to be connected to the linear motor rotor at a horizontally arranged carrier interface. In alternative designs, a vertical carrier interface of the functional unit is provided for connecting to the linear motor rotor. 
     In further alternative designs, at least one carrier adapter is provided, matching the linear motor rotor, for connecting the functional unit to the linear motor rotor. The functional unit can be connected to the carrier adapter by way of the energy supply module and/or by way of the functional module. In some designs, the at least one carrier adapter is formed in such a way that it can be connected to linear motor rotors of different manufacturers by means of an interface matching the linear motor rotors of the different manufacturers. In other designs, different carrier adapters are provided, in each case having an interface adapted to a linear motor rotor of a specific manufacturer. 
     In further designs, the carrier adapter is connected to the horizontal interface of the functional unit and has an additional vertical interface, the functional unit being connected to the linear motor rotor by means of the additional vertical interface of the carrier adapter. In yet other designs, the interface is arranged at an angle to a horizontal plane of movement, the interface being formed directly at the angle of the functional unit or being formed by means of the carrier adapter. 
     In some designs, multiple functional units are arranged on a linear motor rotor. In one design, the multiple functional units are connected both to the linear motor rotor and to one another. In some designs, a connection between multiple functional units is realized by means of uniform interfaces. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Further advantages and aspects of the invention emerge from the claims and from the following description of exemplary embodiments of the invention, which are explained below on the basis of the figures. The same reference signs are used for the same or similar components or elements in the drawings, in which: 
         FIG. 1  shows a three-dimensional schematic representation of an energy supply module, 
         FIG. 2  shows a three-dimensional schematic exploded representation of a first embodiment of an arrangement comprising a carrier of a linear motor system and a functional unit mechanically coupled to the carrier and having a vacuum gripper, together with an object received by the functional unit, 
         FIG. 3  shows a three-dimensional schematic exploded representation of part of a vacuum gripper similar to  FIG. 2 , together with an external turning system and an object, 
         FIG. 4  shows a three-dimensional schematic exploded representation of a second embodiment of an arrangement comprising a carrier of a linear motor system and a functional unit mechanically coupled to the carrier and having a jaw gripping system, together with an object received by the functional unit, 
         FIG. 5  shows a three-dimensional schematic exploded representation of a jaw gripping system similar to  FIG. 4  with an external turning system and an object, 
         FIG. 6  shows a three-dimensional schematic exploded representation of a third embodiment of an arrangement comprising a carrier of a linear motor system and a functional unit mechanically coupled to the carrier and having a turning system, together with an object received by the functional unit, 
         FIG. 7  shows a three-dimensional schematic representation of the fourth embodiment of the arrangement similar to  FIG. 6  with a data conductor and 
         FIG. 8  shows a three-dimensional schematic exploded representation of a fifth embodiment of an arrangement, comprising a carrier of a linear motor system and a functional unit mechanically coupled to the carrier. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
       FIG. 1  shows an energy supply module  1  with a carrier interface  10 , a function interface  12 , a receiver  14  of a contactless energy transmission device and an energy store  16 . 
     The energy supply module  1  serves for supplying energy to a functional device (not shown in  FIG. 1 ), which is provided on a movable carrier (not shown in  FIG. 1 ) of a transport system. The energy supply module  1  comprises for this purpose the receiver  14 , by means of which energy can be received from an external energy source. The energy is provided for the functional device at the function interface  12 . 
     The energy supply module  1  can be mechanically connected to a carrier (not shown in  FIG. 1 ) of a transport system by means of the carrier interface  10 . For this purpose, the carrier interface  10  shown has on an underside two carrier coupling elements  100 . The carrier coupling elements  100  are designed as clamping means with a latching function, and so the energy supply module  1  can be mechanically connected to a carrier (not shown in  FIG. 1 ) of a transport system by means of the carrier coupling elements  100  by way of a form and force fit occurring. The arrangement, number and design of the carrier coupling elements  100  are however only given by way of example and numerous modifications are conceivable. 
     In the exemplary embodiment shown, the function interface  12  has three connection elements  120   a ,  120   b ,  120   c  in the form of flat, exposed contacts. In the exemplary embodiment, the flat contacts are recessed into a surface of the energy supply module  1 . 
     In addition to the three connection elements  120   a ,  120   b ,  120   c , the function interface  12  has two function coupling elements  122 , which are likewise designed as clamping means with a latching function, and so the energy supply module  1  can be mechanically connected to a further module, for example a functional module  3   a ,  3   b ,  3   c  (not shown in  FIG. 1 ), by means of the function coupling elements  122  by way of a form and force fit occurring. The arrangement, number and design of the function coupling elements  122  are however only given by way of example and numerous modifications are conceivable. 
     In one design, the energy supply module  1  makes energy available for collectors of varying power at the function interface  12 . For this purpose, in the design shown, for example a first connection element  120   a  is designed as a ground connection, while a second connection element  120   b  is designed as an energy load connection and a third connection element  120   c  is designed as an electronics load connection. The numbering of the connection elements  120   a ,  120   b ,  120   c  serves here merely for differentiation and should not be understood as a restrictive definition with respect to the arrangement. The connection elements are also referred to together by the reference sign  120 . In one design, a voltage potential of 24 V is respectively provided at the energy load connection and the electronics load connection, the signals provided at the connection elements  120   b ,  120   c  differing with regard to their transferable power. For example, power levels of about 20 Watts can be transferred by way of the energy load connection. By contrast, only lower power levels, for example in the range of about 5 Watts, can be transferred by way of the electronics load connection. The energy load connection and the electronics load connection can be used by different collectors, for example by different components of the functional device (not shown in  FIG. 1 ). 
     In the exemplary embodiment shown, the receiver  14 , which is schematically represented in a U-shaped form, is arranged on a side face of the energy supply module  1  that is aligned orthogonally in relation to the carrier interface  10  and the function interface  12 . The receiver  14  is electrically connected to the three connection elements  120   a ,  120   b ,  120   c . In one design, the connection takes place directly. Preferably provided however between the receiver  14  and the connection elements  120   a ,  120   b ,  120   c  are electronic components by means of which the energy received by means of the receiver  14  is converted in a suitable form, buffer-stored or prepared in some other way for the connection elements  120   a ,  120   b ,  120   c.    
     In the exemplary embodiment shown, at least the energy store  16  is electrically incorporated between the receiver  14  and the three connection elements  120   a ,  120   b ,  120   c . The energy store  16  is for example designed in such a way that, if there is no longer a supply of energy to the energy supply module  1 , at least an amount of energy of about 30 Watt seconds is available at the electronics load connection for electronics of an attached functional device, whereas an energy supply for higher-power collectors is interrupted. 
       FIG. 2  shows a first design of an arrangement comprising a carrier  20  and a functional unit  5   a  mechanically coupled to the carrier  20  and having an energy supply module  1  according to  FIG. 1 , together with an object  6  received by the functional unit. 
     The carrier  20  is designed as a linear motor rotor of a linear motor system  2  and can be moved along a linear motor path  22 , only one section of a linear motor system  2  being shown in  FIG. 2 . The energy supply module  1  can be connected to the linear motor rotor of the linear motor system  2  by means of the carrier coupling elements  100 . For this purpose, the carrier coupling elements  100  of the energy supply module  1  are designed as matching the linear motor rotor  20 . In the exemplary embodiment shown, the carrier  20  has coupling elements  200 , the carrier coupling elements  100  and associated coupling elements  200  forming a form- and force-fitting connection, but other types of connection are also conceivable. 
     The functional unit  5   a  shown comprises a functional module  3   a  with a functional device designed as a vacuum gripping system  30 . 
     A vacuum pump  300 , which has to be supplied with electrical energy for its operation, is provided on the functional device. The vacuum pump  300  is in flow connection with suction elements  302 , and so the object  6  can be sucked into place and held. In the exemplary embodiment shown, the suction elements  302  are provided on a covering  310 , which is fluidically coupled to the vacuum pump  300 . In one design, the suction elements  302  are assigned activatable valves (not shown), and so the suction elements  302  are individually activatable. 
     For supplying energy by the energy supply module  1 , the functional module  3   a  shown has three connection elements  320  designed as matching the three connection elements  120  of the energy supply module  1 . The connection elements  320  of the functional module  3   a  are designed as spring-loaded pins, and so, when the functional module  3   a  is placed onto the energy supply module  1 , the connection elements  320  of the functional module  3   a  are pressed against the connection elements  120  of the energy supply module  1  for the electrical connection to the supply of energy. 
     In addition to the three connection elements  320 , the functional module  3   a  has two energy-supply module coupling elements  322 , which are designed as matching the function coupling elements  122  of the energy supply module  1  and by means of which the functional module  3   a  can be mechanically connected to the energy supply module  1 . 
     The receiver  14  of the energy supply module  1  receives the energy by an energy conductor  40 , which runs along the linear motor path  22  and parallel to it. By means of the energy conductor  40 , energy is transferred inductively to the receiver  14  and is provided by the latter for the functional module  3   a  by way of the connection elements  120   a ,  120   b ,  120   c . In the schematically represented exemplary embodiment, the energy conductor  40  runs between the legs of the receiver  14 , designed in a U-shaped form, of the energy supply module  1 , but the representation is only given by way of example. 
     In the exemplary embodiment shown, the covering  310  and a housing of the vacuum pump  300  are mechanically coupled by means of coupling elements  326 . The coupling elements  326  are designed as structurally the same as the coupling elements  122 ,  322 . As a result, it is possible for an alternative design to couple the covering  310  directly to the energy supply module  1 . 
       FIG. 3  schematically shows a covering  310  of the vacuum gripper  30  according to  FIG. 2 , together with an external turning system  34   a  and an object  6 . The turning system  34   a  shown is realized by a toothed rack  340  and a toothed wheel  342 , the toothed rack  340  being arranged externally, in a way similar to the energy conductor  40 , at least in some sections along the linear motor path  22  (cf.  FIG. 2 ) and the toothed wheel  342  being arranged on the functional module  3   a . If the functional unit  5   a  moves in relation to the toothed rack  340  along the linear motor path  22 , the toothed wheel  342  engages in the toothed rack  340 . There is a turning movement of the covering  310 , and consequently a turning of the object  6 . In one design it is provided that for this purpose the covering  310  is at least partially mechanically decoupled from a housing of the vacuum pump  300  (cf.  FIG. 2 ), but remains fluidically in connection with the vacuum pump  300 . In other designs, a fluidic decoupling also takes place. 
       FIG. 4  shows a second design of a functional unit  5   b , comprising an energy supply module  1  according to  FIG. 1 , together with a carrier  20  of a linear motor system  2 , receiving this functional unit  5   b , and with an object  6  received by the functional unit  5   b . The functional unit  5   b  is similar to the functional unit  5   a  according to  FIG. 2  and the same reference signs are used for the same components. 
     As a difference from the design according to  FIG. 2 , in the case of the design according to  FIG. 4  a functional module  3   b  with a jaw gripping system  32  is provided. The functional module  3   b  has for the jaw gripping system  32  at least one drive, with which gripping jaws  33  can be moved in relation to one another in order to grip the object  6 . As in the case of the functional module  3   a , the energy for a drive  330  of the functional module  3   b  is made available by the energy supply module  1 , which in turn receives energy contactlessly from the energy conductor  40 . The functional module  3   b  comprises electrical connection elements  320  and energy-supply module coupling elements  322 . As the comparison of  FIGS. 2 and 4  shows, the electrical connection elements  320  and the energy-supply module coupling elements  322  of the functional modules  3   a  and  3   b  are designed as structurally the same, and so the functional modules  3   a  and  3   b  can be connected according to choice to the energy supply module  1 . 
       FIG. 5  shows a jaw gripping system  32  similar to  FIG. 4  with an external turning system  34   b  and the object  6  shown by way of example. The turning system  34   b  shown is realized by two toothed wheels  342 , a first toothed wheel  342  being arranged in an externally rotatably driven manner. The first toothed wheel  342  is for example arranged at a position along the linear motor path  22  (cf.  FIG. 4 ). A second toothed wheel  342  is arranged on the functional module  3   b . When the functional unit  5   b  is in the position in which the first toothed wheel  342  engages in the second toothed wheel  342 , the first toothed wheel  342  drives the second toothed wheel  342 . A turning movement of the gripping jaws  33  occurs, and consequently a turning of the object  6 . 
       FIG. 6  shows a third design of a functional unit  5   c , comprising an energy supply module  1  according to  FIG. 1 , together with a carrier  20  of a linear motor system  2 , receiving this functional unit  5   c , and with an object  6  received by the functional unit  5   c . The functional unit  5   c  is similar to the functional unit  5   a  according to  FIG. 2  and the same reference signs are used for the same components. 
     The functional unit  5   c  has a functional module  3   c , which has a vacuum gripping system  30  and also a turning system  34   c . The turning system  34   c  has an electrically actuated drive, provided on the functional module  3   c , and so the object  6  can be turned at any desired position along the linear motor path  22 . The functional unit  5   c  obtains energy for the functional module  3   c  by way of the energy supply module  1 , as described in connection with  FIG. 2 . 
     By means of the linear motor system  2 , the linear motor rotor  20 , and consequently the functional unit  5   c , can be moved along the linear motor path  22  and the energy conductor  40  running along the linear motor path  22 , and so, depending on the course followed by the energy conductor  40 , energy for the functional unit  5   c  can be provided uninterruptedly or with interruptions along the line. 
     Preferably, data are also transmitted by an external data transmission device, in particular an external control device (not shown) or the like, to the functional modules  3   a ,  3   b ,  3   c  according to  FIGS. 2, 4 and 6 . 
     In one design, a data exchange likewise takes place by means of the connection elements  120 ,  320 , an energy carrier signal being modulated for this purpose. In other designs, additional connection elements are provided for this. In yet other designs, the data exchange between the energy supply module  1  and/or the functional module  3   a ,  3   b ,  3   c  and an external data transmission device (not shown) takes place by radio by means of additional communication devices. Data are operating data and/or process data, such as for example negative pressure values of a vacuum gripping system  30  or turning position values of the turning system  34   c  and/or actuating signals for the activation or deactivation of the functional devices. 
       FIG. 7  shows a fourth embodiment of an arrangement similar to  FIG. 6 . As a difference from  FIG. 6 , in the case of the design according to  FIG. 7  a data conductor  42  is additionally provided, by way of which the data exchange between the energy supply module  1  and/or the functional module  3   c  and the external data transmission device (not shown) takes place. The data conductor  42  is part of the external data transmission device (not shown) and is connected to it. The data exchange takes place by way of an inductive coupling of a bus signal, and so data are exchanged between the functional module  3   c  and the external data transmission device by way of the energy supply module  1  and the data conductor  42 . 
       FIG. 8  shows a fifth embodiment of an arrangement comprising a carrier  20  of a linear motor system  2  and a functional unit  5   c  mechanically coupled to the carrier  20  according to the designs of  FIGS. 6 and 7  having an energy supply module  1  according to  FIG. 1 , together with an object  6  received by the functional unit  5   c.    
     As a difference from the previous embodiments, a linear motor path  22  of the linear motor system  2  according to  FIG. 8  does not run in a horizontal plane but extends in a vertical direction. For an attachment of the functional unit  5   c  to the carrier  20 , a carrier adapter  7  is provided. The carrier adapter  7  has a first interface for the energy supply module  1 , this being formed as matching the carrier interface  10  of the energy supply module  1  (cf.  FIG. 1 ). The carrier adapter  7  has a second interface for the carrier  20  designed as a linear motor rotor, which is arranged orthogonally in relation to the first interface. Consequently, it is possible by means of the carrier adapter  7  to fasten the functional unit  5   c , tilted by 90 degrees, on the carrier  20 . 
     The exemplary embodiments shown are only given by way of example and, as evident to a person skilled in the art, numerous modifications are conceivable.