INDUCTIVE ENERGY TRANSFER DEVICE FOR A LINEAR TRANSPORT SYSTEM

Description

[0001] The invention relates to an inductive energy transmission device for a linear transport system, a magnetically driven carriage with such an inductive energy transmission device and a linear transport system.

[0002] In linear transport systems, the carriage and rail guide form a linear motor. The rail guide is usually the stator of the linear motor and has drive coils. The carriages represent the rotors of the linear motor and are equipped with magnets. By energizing the drive coils in the rail guide, force is exerted on the carriage magnets, causing the carriages to move along the rail guide.

[0003] The slides can contain tools and a slide control system for exchanging data with a control system for the rail guide. To operate such electrical devices, also referred to as loads, wirelessly on the slide, a power transmission from the slide guide to the slide is necessary.

[0004] DE 10 2018 111 715 A1 discloses a linear transport system with an inductive energy transmission device between a carriage guide and carriages movable along the carriage guide. The inductive energy transmission device has an energy transmission coil with a primary winding for applying an input voltage, wherein the primary winding extends along the carriage guide. An energy reception coil of the inductive energy transmission device is arranged on each carriage, which comprises a secondary winding for tapping an output voltage. The energy transmission coil and the energy reception coil are at least partially opposite one another when the carriage moves along the carriage guide in order to transfer energy from the energy transmission coil to the energy reception coil, which is then made available to an electrical load on the carriage.In the linear transport system of DE 10 2018 111 715 A1, in addition to inductive energy transmission, contactless data transmission between the carriage guide and the carriages is also provided using antennas arranged on the carriage guide or the carriages. DE 103 34 737 A1 similarly discloses an inductive energy transmission device for a linear transport system, in which at least one magnetically driven carriage moves along a carriage guide having a motor module device. The inductive energy transmission device comprises an energy transmitting coil having a primary winding for applying an input voltage and an energy receiving coil having a secondary winding for tapping an output voltage.

[0005] US 10,483,895 B2 describes another inductive energy transmission device for a linear transport system, in which a primary winding of an energy transmitting coil is arranged along a rail guide, and each carriage has a secondary winding as an energy receiving coil. The primary winding of the energy transmitting coil and the secondary winding of the energy receiving coil are each flat and arranged such that, when the carriage is moved along the rail guide, the secondary winding is substantially aligned with the primary winding, leaving an air gap. The energy transferred from the primary winding to the secondary winding is then supplied to an electrical load mounted on the carriage.

[0006] The task is to provide an inductive energy transmission device for a linear transport system in which the energy transmitted from the carriage guide to the carriages can be adjusted quickly and as required.

[0007] The problem is solved by the independent patent claims. Advantageous embodiments are specified in the dependent patent claims.

[0008] In a linear transport system in which at least one magnetically driven carriage moves along a carriage guide having a motor module device, an inductive energy transfer device is provided which comprises an energy transmitting coil having a primary winding for applying an input voltage and an energy receiving coil having a secondary winding for tapping an output voltage. The energy transmitting coil is arranged on the motor module device and extends along the carriage guide. The energy receiving coil is arranged on the carriage and extends along the carriage. The energy transmitting coil and the energy receiving coil are at least partially opposite one another when the carriage moves along the carriage guide in order to transfer energy from the energy transmitting coil to the energy receiving coil.The secondary winding of the energy receiving coil has a control voltage winding section and a load voltage winding section, wherein the control voltage winding section and the load voltage winding section comprise separate winding conductor tracks. The control voltage winding section provides a control voltage for tapping by a carriage guide control unit on the carriage, and the load voltage winding section provides a load voltage for tapping by a load on the carriage.

[0009] Dividing the secondary winding of the power receiving coil into a control voltage winding section and a load voltage winding section makes it possible to supply different electrical loads on the slide with energy separately and as needed. This ensures, in particular, that the power supply to the slide control always remains active and unaffected by the load voltage circuit for supplying slide tools. For example, the control voltage winding section can supply a 24 V control voltage when idle, and the load voltage winding section can supply a 48 V load voltage when idle. The separate windings also make it possible to adapt the conductor cross-section and the number of turns for the load voltage so that, for example, a significantly higher load voltage is generated for certain applications, while the control voltage remains unchanged.The load voltage can also be changed very quickly separately from the control voltage and can also be switched off independently.

[0010] The cross section of a winding conductor track forming the control voltage winding section can be smaller than the cross section of a winding conductor track forming the load voltage winding section.

[0011] By dividing the secondary winding of the energy receiving coil into two windings and the cross-sectional design, the control voltage winding section can provide a low-power control voltage and the load voltage winding section can provide a high-power load voltage for a sensor and / or actuator on the carriage.

[0012] The number of turns of the control voltage winding section may be lower than the number of turns of the load voltage winding section.

[0013] Due to the higher number of turns of the load voltage winding section, a stable voltage can be achieved over a larger payload range.

[0014] The energy transmitting coil and the energy receiving coil can each have a coil former. The energy transmitting coil former of the energy transmitting coil and the energy receiving coil former of the energy receiving coil are aligned parallel to one another and are at least partially opposite one another when the carriage moves along the carriage guide. The surface spanned by the primary winding of the energy transmitting coil is aligned parallel to the energy transmitting coil former of the energy transmitting coil. The surfaces spanned by the control voltage winding section and the load voltage winding section of the secondary winding of the energy receiving coil are aligned perpendicular to the energy receiving coil former of the energy receiving coil.

[0015] This design ensures a compact construction of the inductive energy transmission device with a flat energy transmitting coil. The design of the control voltage winding section and the load voltage winding section perpendicular to the coil body of the energy receiving coil enables improved use of the winding space.

[0016] The energy transmitting coil bobbin of the energy transmitting coil and the energy receiving coil bobbin of the energy receiving coil can each have an E-shaped cross section with two outer arm ribs and a central rib on a bobbin surface. The E-shaped cross sections face each other and the outer arm ribs and the central ribs of the bobbin surfaces are opposite each other when the carriage moves along the carriage guide. The primary winding of the energy transmitting coil is arranged around the energy transmitting coil central ribs between the first energy transmitting coil outer arm rib and the second energy transmitting coil outer arm rib of the energy transmitting coil bobbin.The control voltage winding portion and the load voltage winding portion of the secondary winding of the power receiving coil are arranged between the first power receiving coil outer arm rib and the second power receiving coil outer arm rib of the power receiving coil bobbin around the power receiving coil bobbin surface.

[0017] Compared to the primary winding of the power transmission coil, which is wound around the central rib of the coil former, the control voltage winding section and the load voltage winding section of the secondary winding of the power reception coil have twice the winding space, each of which is wound around an outer arm rib of the coil former. The magnetic flux remains the same because the magnetic flux through a central rib of a coil former is higher than through an outer arm rib of a coil former. The larger winding space allows the number of turns of the windings to be increased with the same cross-section.

[0018] The power receiving coil bobbin of the power receiving coil may have a first power receiving coil bobbin section and a second power receiving coil bobbin section, wherein the load voltage winding section is formed in the first power receiving coil bobbin section and the control voltage winding section is formed in the second power receiving coil bobbin section.

[0019] The division of the coil body of the energy receiving coil, in which the control voltage winding section and the load voltage winding section are designed in separate coil body sections, enables a simplified coil structure and easier assembly.

[0020] The control voltage winding section and the load voltage winding section of the energy receiving coil can also be nested.

[0021] The nested division of the control voltage winding section and the load voltage winding section of the power receiving coil on the coil former ensures that the magnetic flux in the coil former always remains symmetrical. Load differences in the windings then do not lead to asymmetries and dynamic changes in the magnetic flux through the coil former.

[0022] The power receiving coil may include a first power receiving coil circuit board having first winding conductor tracks, a second power receiving coil circuit board having second winding conductor tracks, and a power receiving coil bobbin disposed between the first power receiving coil circuit board and the second power receiving coil circuit board. The first winding conductor tracks of the first power receiving coil circuit board and the second winding conductor tracks of the second power receiving coil circuit board are then connected to one another via electrical plug connections to form the control voltage winding section and the load voltage winding section of the secondary winding of the power receiving coil.

[0023] The printed circuit board design of the energy receiving coil, in which the winding conductor tracks are designed on two separate printed circuit boards that are connected to each other via electrical plug connections, simplifies the separate design of the control voltage winding section and the load voltage winding section of the secondary winding of the energy receiving coil.

[0024] On the side of the energy receiving coil body of the energy receiving coil facing away from the energy transmitting coil body of the energy transmitting coil, a cooling device for the control voltage winding section and the load voltage winding section of the secondary winding of the energy receiving coil can be provided.

[0025] In the winding arrangement of the energy receiving coil, one winding side is located outside the voltage transformer of the energy transmission device, formed by the energy transmitting coil and the energy receiving coil, and is thus suitable for attaching a heat sink. The heat sink can protrude from the carriage housing, so that, for example, the cooling fins of the heat sink are located outside the carriage housing to be cooled by the carriage's airflow.

[0026] In a magnetically driven carriage for a linear transport system, in which the carriage moves along a carriage guide having a motor module device, the control voltage winding section of the secondary winding of the energy receiving coil can be connected to a carriage control unit via a first rectifier and the load voltage winding section of the secondary winding of the energy receiving coil can be connected to a load via a second rectifier.

[0027] With this design, a separate control voltage and load voltage circuit can be formed on the magnetically driven carriage.

[0028] A load voltage circuit switch may be provided between the load voltage winding portion of the secondary winding of the power receiving coil and the load, which switch is connected to the carriage control unit, wherein the carriage control unit can open the load voltage circuit switch to disconnect the load from the load voltage winding portion.

[0029] The separate windings of the power receiving coil allow a control voltage and a load voltage for the carriage to be generated as two independent voltages. A controller on the carriage, powered by the control voltage, can then monitor and influence the load voltage using the switch. For example, it is possible to isolate the load voltage circuit from the load during load fluctuations. This prevents a sudden drop in load from causing an overvoltage on the load voltage circuit, which could then damage the electronics in the load voltage circuit. Energy can also be saved by switching off the load voltage circuit when necessary.The load voltage circuit control can be carried out much more quickly locally on the carriage compared to a procedure in which a current voltage value is first transmitted to the rail guide by means of a data transmission in order to then adjust the energy transmission of the energy transmitting coil by changing the frequency and / or amplitude.

[0030] A first energy storage device can be connected to the control voltage winding section and a second energy storage device can be connected to the load voltage winding section, wherein the first energy storage device and the second energy storage device are designed to deliver temporarily stored electrical energy to the carriage control and / or the load.

[0031] By tapping two separate voltages on the slide, improved energy storage can be achieved. The first or second energy storage device can then be selected as needed to determine whether the control voltage should be buffered in an application to keep the controller active for longer even in areas without power transmission, or whether more power should be made available to the load voltage circuit for a short time at points with high power requirements of the connected sensors or actuators. The two separate voltages also allow for a larger reserve, for example, for the control voltage supplying the controller on the slide.

[0032] Furthermore, a linear transport system can be configured with at least one magnetically driven carriage and a carriage guide having a motor module device, wherein the at least one magnetically driven carriage moves along the carriage guide. The motor module device comprises a plurality of energy transmitting coils and is configured to select at least one energy transmitting coil based on control information and to adjust an energy transfer from the energy transmitting coil to the energy receiving coil on the carriage.

[0033] This makes it possible to carry out a targeted and optimally adapted energy transfer from the motor module device to the magnetically driven carriage.

[0034] The invention will be explained in more detail below using embodiments and with reference to figures, each of which shows a schematic representation Fig. 1a curve section of a linear transport system; Fig. 2the motor module with the guided carriage from the linear transport system of the Fig. 1 ; Fig. 3 a sectional view through the motor module with guided slides from Fig. 2 ; Fig. 4 a first embodiment of an inductive energy transmission device; Fig. 5 a second embodiment of an inductive energy transmission device; Fig. 6 the Fig. 4 Fig. 7 shows a first embodiment with circuit board removal; Fig. 8 shows an electrical circuit diagram of a primary side of an inductive energy transmission device; Fig. 8 shows an electrical circuit diagram of a secondary side of an inductive energy transmission device; and Fig. 9 shows an electrical circuit diagram of a secondary side of an inductive energy transmission device with energy storage.

[0035] In the figures, the same reference symbols are used for identical features. Furthermore, for reasons of clarity, not all elements are shown in every figure, and not every element is provided with a separate reference symbol in every drawing.

[0036] In a linear transport system, magnetically driven carriages are moved along a carriage guide containing motor modules. The motor modules and the carriages form a linear motor. The motor modules contain electromagnetic coils, also referred to as drive coils, and the carriages each carry magnets, for example, in the form of magnetic plates, which, together with the drive coils of the motor modules, generate a controlled propulsion force. The motor modules are also equipped with power electronics and a position sensor for the carriages.

[0037] The slide guide comprises guide rail elements for the slides arranged on or next to the motor modules, which define the slide travel path. Each slide has a guide mechanism for movement along the guide rail. The slide guide can be of any shape and, in particular, can form a closed slide travel path. The desired geometries, lengths, and radii are determined by the number and / or selection of motor modules and the associated guide rail elements.

[0038] The carriages can move freely along the entire travel path specified by the carriage guide. This means that the carriage can brake, accelerate, position, and exert a constant force both at rest and during movement. The carriage movement can also be synchronized with other motion processes. With a closed carriage travel path, the carriages can move continuously.

[0039] The carriages can be moved independently of each other. This allows the carriages to move to specified positions along the entire travel path or to be moved relative to each other. The carriages can automatically accumulate to form a moving buffer from which a moving target can be approached with high dynamics. During the ongoing movement, groups of carriages can be formed that stop together or approach processing stations at a specified speed profile.

[0040] There are basically no restrictions on the number of slides on the slide guide. The number of slides is determined by the length of the slide guide and can be optimized to suit the desired application. For position detection by the motor modules, the slides each have a position sensor that transmits a slide position signal to the motor modules.

[0041] The linear transport system can be designed as a double air-gap linear motor. The magnets on the carriage then grip the drive coils of the motor modules on two opposite sides. The carriage thus absorbs the attraction forces of the magnets on both sides of the motor modules and largely compensates for these attraction forces with the guide mechanism on the carriage. The guide mechanism of the carriage can then run on the guide rail of the carriage guide with low wear.

[0042] The linear transport system is versatile and enables extremely fast material transport. By controlling the carriages accordingly, products can be moved, product spacing can be adjusted, and / or product speed can be increased or decreased. Products can also be clamped, moved, transported, and ejected.

[0043] In addition, linear transport systems often also have the task of manipulating a product, i.e., lifting, closing, rotating, screwing on a cap, etc. This can be accomplished using processing stations on the carriage guides, but also using tools on the carriage. The carriage tool can be, for example, a gripper, a slider, a drill, or an alignment device.

[0044] In addition to a tool for product manipulation, the carriage can also accommodate another type of electrical consumer, for example a measuring tool for measuring a physical quantity such as temperature, pressure, current, voltage, acceleration, mass, etc.

[0045] Furthermore, a slide controller can be provided on the slide. The slide controller can be used to exchange data with the controller of the rail guide containing the motor modules. The purpose of such a data exchange can be to transmit status information, such as measurement signals, which can then be taken into account when controlling the slide movement. However, the purpose of such a data exchange can also be to transmit control information for a slide tool from the rail guide to the slide. The slide controller can also be used to autonomously control the tool provided on the slide.

[0046] In order to operate the slide tool or the slide control, a power supply for the slide is required. A wireless design is achieved through inductive power transmission to the slides. A device for such inductive power transmission comprises at least one power transmitting coil having a primary winding extending along the slide guide. Each slide further has at least one power receiving coil whose secondary winding extends along the slide. The power transmitting coil on the slide guide and the power receiving coil on the slide are arranged such that, when the power receiving coil of the slide is located in the area of ​​the power transmitting coil of the slide guide, the power receiving coil and the power transmitting coil at least partially overlap. The power transmitting coil then forms a voltage transformer with the power receiving coil.

[0047] The slide guide controller detects the corresponding movement position of the slide on the slide guide using the positioning detection system and causes an input voltage to be applied to the energy transmitting coil. The energy receiving coil then taps an output voltage, which is then made available to the electrical loads on the slide.

[0048] To provide a fast and on-demand power supply, the secondary winding of the power transmitting coil has two winding sections: a control voltage winding section and a load voltage winding section, each with separate winding conductors. The power receiving coil then provides two separate voltages as output voltage: a control voltage for tapping by the carriage controller and a load voltage for tapping by the load on the carriage.

[0049] The slide control can thus be supplied with power independently and thus unaffected by the other electrical loads on the slide. The voltages for the slide control and the load can also be set independently of each other. The control voltage and the load voltage can be determined by the number of turns of the respective winding conductors. For example, the load voltage winding section can be designed with a smaller wire cross-section and a higher number of turns in order to provide a higher load voltage than the control voltage of the control voltage winding section. For example, the control voltage winding section can supply an open-circuit voltage of 24 V control voltage, whereas the load voltage winding section provides a load voltage of 48 V when open-circuited.

[0050] In the following, embodiments of the inductive energy transmission device for a linear transport system, in which the secondary winding of the energy transmission coil has two separate winding conductor tracks for a control voltage winding section and a load voltage winding section, are explained.

[0051] Fig. 1 shows a curved section of a linear transport system 101 in plan view or as a side view, depending on how the linear transport system is oriented in space. As parts of a carriage guide 102 of the linear transport system 101, Fig. 1 Five motor modules 107 are shown, each with a guide rail element 105 mounted on it. The motor modules 107 are partially designed differently, with an arrangement consisting of a curved motor module, a straight motor module, a 180-degree motor module, a straight motor module, and a curved motor motor being shown. The guide rail elements 105 of the motor modules 107 are each adapted to the shape of the motor module, i.e., curved, straight, or bent by 180 degrees. The carriage guide 102 of the linear transport system 101 forms a travel path whose path lies in a single plane.

[0052] The linear transport system 101 includes a carriage guide control unit 133 connected to the motor modules 107 to control their operation. It can, as shown in Fig. 1 As shown, the carriage guide control unit 133 may be connected to only a single motor module 107, with the additional motor modules 107 then being connected to the connected motor module 107 via a communications bus in order to exchange signals between the carriage guide control unit 133 and the various motor modules 107. Alternatively, the carriage guide control unit may also be connected to each or multiple motor modules. Furthermore, the carriage guide control unit may also be composed of multiple units that are arranged in a distributed manner.

[0053] Depending on the application, any number of carriages 103 can be provided on the carriage guide 102 of the linear transport system 101. On the Fig. 1 In the section of the slide guide 102 shown, a single slide 103 is guided on the slide guide 102.

[0054] Fig. 2 shows the motor module 107 with the guide rail element 105 from Fig. 1 on which the individual carriage 103 is guided. Fig. 3 shows a sectional view through the motor module 107 with the guide rail element 105 and the guided carriage 103 from Fig. 2 .

[0055] The motor modules 107 of the carriage guide 102 and the carriages 103 moved on the carriage guide 102 form the linear motor of the linear transport system 101. The motor modules 107 as the stator of the linear motor each comprise a plurality of pole teeth 109, which are arranged spaced apart from one another along the motor module 107. The pole teeth 109 are essentially rod-shaped and oriented transversely to the motor module 107. Every second pole tooth 109 is provided with a drive coil winding 111, which is Fig. 3 shown in the sectional view. The wound pole teeth 109 form the drive coils of the linear motor.

[0056] The carriages 103 are, as shown in Fig. 3 shows, is constructed essentially symmetrically with respect to a longitudinal center plane. A U-shaped carriage head 113 arranged on the guide rail element 105 has two legs, on the inner sides of which four rollers 139 are provided as a guide mechanism for the carriage 103 on the guide rail element 105. Each roller 139 is assigned to an inner running surface 141 of the guide rail element 105, which has a T-shaped cross-section.

[0057] Magnetic plates 117 are arranged on the inner sides of each of the two leg ends of the carriage head 113, which surround the drive coil winding 111 of the motor module 107. The magnetic plates 117 and the intermediate drive coil winding 111 form a double air-gap linear motor. The attraction forces of the magnetic plates 117 are compensated on both sides of the drive coil winding 111 of the motor module 107, so that the rollers 139 of the carriage 103 roll on the running surfaces 141 of the guide rail element 105 with low wear.

[0058] As the cross section in Fig. 3 shows, a positioning element 143 in the form of a sensor flag with a metallic surface is connected to one leg of the carriage head 113, which extends parallel to the motor modules 107 of the carriage guide 102. The positioning element 143 on the carriage 103 is located on the carriage side which corresponds to the view in Fig. 1 and Fig.2 opposite the slide side shown and is therefore not shown there.

[0059] The same applies to the position sensor device 145 provided on the motor modules 107 of the carriage guide 102, which, in cooperation with the position element 143 on the carriage 103, determines the position of the carriage 103. The position sensor device 145, which is arranged in the motor module 107 opposite the position element 143 of the carriage 103, is at least one energized coil extending along the motor module 107, the current of which is changed by the position element 143 in order to detect the position of the position element 143 and thus the position of the carriage 103.

[0060] As an alternative to detecting the position of the carriage 103 with a standalone system comprising the position element 143 on the carriage 103 and the position sensor device 145 in the motor modules 107 of the carriage guide 102, the position data of the carriage 103 can also be determined by energizing the drive coil windings 111 of the motor modules 107. Another possibility for determining the position data is to detect the magnetic plates 117 on the carriage 103 using magnetic field sensors, for example 3D Hall sensors, arranged on the motor modules 107 of the carriage guide 102.

[0061] For data transmission between the carriage guide 102 and the carriage 103, the motor modules 107, as shown in the side views in Fig. 1 and Fig. 2 show, an antenna array 129 extending along the carriage guide 102. On the carriage 103, a further carriage antenna 131 is provided, which is located in an attachment 119 on the carriage head 113. The attachment 119 is, as Fig. 3 shows, the position element 143, which is designed as a sensor flag with a metallic surface, is arranged opposite the other leg of the carriage head 113 and extends beyond the leg end parallel to the motor modules 107 of the carriage guide 102. The carriage antenna 131 is fixed in the carriage head attachment 119 in the area which is opposite the antenna array 129.

[0062] With the help of the antenna array 129 and the carriage antenna 131, data can be exchanged between the carriage guide 102 and the carriage 103. Alternatively, data transmission can also take place via a wireless LAN, Bluetooth, infrared, 5G connection, a DECT standard, or an optical connection, both directly between the carriage 103 and the carriage guide control unit 133 of the motor modules 107 without the interposition of components of the carriage guide 102.

[0063] Data is transmitted from the carriage guide 102 to the carriage 103 of the linear transport system 101 in such a way that the carriage guide control unit 133 first determines the position data of the carriage 103 using the position sensor device 145 on the carriage guide 102 in cooperation with the position element 143 on the carriage 103. The carriage guide control unit 133 then selects the antenna from the antenna array 129 of the carriage guide 102 that is opposite the carriage 103 and thus opposite the carriage antenna 131. The carriage guide control unit 133 subsequently outputs a data packet to the motor module 107 on which the selected antenna is located. The data packet comprises a control signal that identifies the selected antenna and a data signal to be transmitted by the selected antenna.The data signal includes a start sequence and payload data, wherein the start sequence is configured to trigger data reception by the carriage 103. For data reception, the carriage 103 has a carriage control unit 121 connected to the carriage antenna 131, which is arranged in the carriage head attachment 119.

[0064] The data exchange between the carriage guide 102 and the carriage 103 is reciprocal. The carriage control unit 121 can also transmit a data packet via the carriage antenna 131 to the antenna array 129 of the carriage guide 102. The antenna in the antenna array 129, which is opposite the carriage 103 and thus opposite the carriage antenna 131, then receives the data packet and forwards it to the carriage guide control unit 133.

[0065] A load 137 is also arranged on the carriage 103. The load 137 is shown in the figures as a placeholder and can be configured, for example, as an electric tool.

[0066] To supply the carriage control unit 121 and the load 137 with electrical energy, an inductive energy transfer device is provided. The inductive energy transfer device comprises an array of energy transmitting coils 125 that extend along the carriage guide 102 adjacent to the antenna array 129. As the views in Fig. 1 and 2 As shown, each motor module 107 is assigned at least one energy transmission coil 125 to enable continuous inductive energy transmission along the carriage guide 102. Instead of a closed array of energy transmission coils, only individual motor modules can have an energy transmission coil 125 to carry out a selective inductive energy transmission.

[0067] The inductive energy transmission device has an energy receiving coil 127 on each carriage 103, which, as the sectional view in Fig. 3 shows, is located on the carriage head attachment 119 adjacent to the carriage antenna 131. The energy receiving coil 127 is arranged on the carriage head attachment 119 such that it is opposite the array of energy transmitting coils 125 on the carriage guide 102, with the energy receiving coil 127 on the carriage 103 covering the energy transmitting coil 125 on the motor module 107. The area occupied by the energy transmitting coil 125 on the motor module 107 is rectangular, whereas the energy receiving coil 127 on the carriage 103 can be square. However, the energy receiving coil 127 on the carriage 103 can also be rectangular.

[0068] The size of the air gap between the energy transmitting coil 125 and the energy receiving coil 127 can also determine the amount of transmitted energy. To ensure the air gap is optimally adjusted, even taking manufacturing tolerances into account, it may be advantageous to provide an adjustment option on the carriage 103, for example, in the form of a screw, with which the distance between the carriage head attachment 119 and the carriage head 113, and thus the air gap, can be adjusted and readjusted.

[0069] The energy transmitting coil 125 on the motor module 107 has a primary winding 126 with a continuous winding conductor track. A secondary winding 128 of the energy receiving coil 127 on the carriage 103, in contrast, is divided into two winding sections, a control voltage winding section 146 and a load voltage winding section 147, which have separate winding conductor tracks.

[0070] Fig. 4 shows a first embodiment of the inductive energy transmission device in a highly schematic representation, wherein Fig. 4A a sectional view through the inductive energy transfer device, Fig. 4B a side view of the inductive energy transfer device, Fig. 4C a plan view of the energy transmitting coil 125 viewed from the perspective of the energy receiving coil 127 and Fig. 4D a top view of the energy receiving coil 127 viewed in the direction of the energy transmitting coil 125.

[0071] The energy transmitting coil 125 and the energy receiving coil 127 each have a coil body 135 which is E-shaped in cross section, wherein the coil body can be an energy transmitting coil coil body 148 and / or an energy receiving coil coil body 153, with two outer arm ribs 202, wherein the outer arm rib can be referred to as the first energy transmitting coil outer arm rib 150 and / or as the second energy transmitting coil outer arm rib 151 and / or as the first energy receiving coil outer arm rib 155 and / or as the second energy receiving coil outer arm rib 156, and an intermediate central rib 204, wherein the central rib can be referred to as the energy transmitting coil central rib 152 and / or as the energy receiving coil central rib 157 on a coil body surface 136, wherein the coil body surface can be referred to as the energy transmitting coil coil body surface 149 and / or as energy receiving coil coil body surface 154.The E-shaped cross sections of the energy transmitting coil bobbins 148 of energy transmitting coil 125 and the energy receiving coil bobbins 153 of energy receiving coil 127 face each other, with the outer arm ribs 202 and the central ribs 204 on the bobbin surface 136 facing each other and an air gap formed between the bobbins 135.

[0072] The coil formers 135 are preferably made of ferromagnetic material and can be an iron body, a high-frequency iron body, or a ferrite body. The ferromagnetic material of the coil former 135 ensures high inductance. However, the coil formers 135 can also be made of a non-ferromagnetic material to achieve inductance independent of the coil current.

[0073] The energy transmitting coil 125 is, as the top view in Fig. 4C shows, designed as a flat coil. The winding conductor track of a primary winding 126 of the energy transmitting coil 125 is wound spirally around the energy transmitting coil central rib 152 of the energy transmitting coil coil body 148 and extends between the energy transmitting coil central rib 152 and the first energy transmitting coil outer arm rib 150 and second energy transmitting coil outer arm rib 151, as the sectional view in Fig. 4A and the side view in Fig. 4B The two free ends of the winding conductor track are, as the top view in Fig. 4C shows, led outwards to the side and serve as connections for applying an electrical voltage.

[0074] In the Fig. 4 In the embodiment shown, the primary winding 126 has six conductor turns that are insulated from each other. However, it is possible to provide more or fewer turns, depending on the desired inductance value in the primary winding 126. The coil windings can also be designed in multiple layers, depending on the size of the coil former area 136.

[0075] A secondary winding 128 of the energy receiving coil 127 is wound such that the winding conductor path extends around the energy receiving coil bobbin surface 154 between the first energy receiving coil outer arm rib 155 and the second energy receiving coil outer arm rib 156 and the energy receiving coil central rib 157, as the sectional view in Fig. 4A and the side view in Fig. 4B The energy receiving coil coil body surface 154 spanned by the secondary winding 128 is thus oriented perpendicular to the energy transmitting coil coil body surface 154 spanned by the primary winding 126.

[0076] The winding conductor track of the secondary winding 128 of the energy receiving coil 127 is divided into a control voltage winding section 146 and a load voltage winding section 147. The control voltage winding section 146 and the load voltage winding section 147 are in the Fig. 4 shown embodiment are designed to be nested one inside the other, wherein the control voltage winding section 146 and the load voltage winding section 147 are each formed symmetrically with respect to the energy receiving coil central rib 157 of the energy receiving coil bobbin 153.

[0077] Like the sectional view in Fig. 4A and the side view in Fig. 4B show, the control voltage winding section 146 and the load voltage winding section 147 each have a first control voltage winding section winding sector 180 and a first load voltage winding section winding sector 182 in a first power receiving coil bobbin surface section 158 of the power receiving coil bobbin surface 154, which extends between the first power receiving coil outer arm rib 155 and the power receiving coil central rib 157, and a second control voltage winding section winding sector 181 and a second load voltage winding section winding sector 183 in a second power receiving coil bobbin surface section 159 of the power receiving coil bobbin surface 154, which extends between the power receiving coil central rib 157 and the second Energy receiving coil outer arm rib 156 extends.The winding conductor tracks of the two winding sectors of the control voltage winding section 146 and the load voltage winding section 147 are each connected to one another via a conductor track arranged on the rear side of the coil surface, as the side view in . Fig. 4B shows. How the supervision in Fig. 4D As shown, the connecting conductor tracks are located laterally on the power receiving coil bobbin 153. The two free ends of the winding conductor track of the control voltage winding section 146 and the load voltage winding section 147 each serve as connections for tapping an electrical voltage and are located opposite the connecting conductor tracks on the side of the power receiving coil bobbin 153, facing outwards. The winding direction of the two windings is additionally rotated in the respective winding sectors.

[0078] Like the sectional view in Fig. 4A and the side view in Fig. 4B show, the winding sectors of the control voltage winding section 146 and the load voltage winding section 147 are arranged such that the first control voltage winding section winding sector 180 of the control voltage winding section is wound around the first energy receiving coil bobbin surface section 158 of the energy receiving coil bobbin surface 154 of the energy receiving coil 127, adjacent to the first energy receiving coil outer arm rib 155. This is then followed in the first energy receiving coil bobbin surface section 158 of the energy receiving coil bobbin surface 154 of the energy receiving coil 127 by the first load voltage winding section winding sector 182 of the load voltage winding section 147, which extends to the energy receiving coil central rib 157. The second winding sectors of control voltage winding section 146 and power voltage winding section 147 are then designed symmetrically.

[0079] The second load voltage winding section winding sector 183 of the load voltage winding section 147 is wound adjacent to the power receiving coil central rib 157 around the second power receiving coil bobbin surface section 159 of the power receiving coil bobbin surface 154 of the power receiving coil 127. The second control voltage winding section winding sector 181 of the control voltage winding section 146 then extends in the remaining area of ​​the second power receiving coil bobbin surface section 159 of the power receiving coil bobbin surface 154 of the power receiving coil 127 up to the second power receiving coil outer arm rib 156.

[0080] The connecting conductor track between the first load voltage winding section winding sector 182 and the second load voltage winding section winding sector 183 of the load voltage winding section 147 is guided adjacent to the energy transmitting coil coil former 148 and along the energy receiving coil central rib 157. The connecting conductor track between the first control voltage winding section winding sector 180 and the second control voltage winding section winding sector 181 of the control voltage winding section 146 extends over the winding sectors of the load voltage winding section 147.

[0081] The interleaved configuration of the control voltage winding section 146 and the load voltage winding section 147 of the energy receiving coil 127 ensures that a symmetrical magnetic flux is present in the energy receiving coil coil former 153. The arrangement of the control voltage winding section 146 and the load voltage winding section 147 perpendicular to the energy receiving coil coil former 153 of the energy receiving coil 127 achieves improved utilization of the winding space. Compared to the flat winding configuration around the energy transmitting coil central rib 153 of the energy transmitting coil coil former 148, the vertical winding configuration of the energy receiving coil 127 results in twice the winding space. However, the magnetic flow remains the same because the magnetic flux through the central rib of the coil body is higher than through the first and second outer ribs of the coil body.Due to the larger winding space, the number of turns of the windings can be increased with the same cross-section, which leads to an increased inductance.

[0082] By dividing the secondary winding 128 of the energy receiving coil 127 into the control voltage winding section 146 and the load voltage winding section 147, the power supply of the carriage control unit 121 and the power supply of the load 137 can be optimized separately. The number of turns can be used to set a desired voltage in each case. For example, the control voltage winding section 146 can supply a 24 V control voltage when idle, and the load voltage winding section 147 can supply a 48 V load voltage when idle. The control voltage winding section 146 then has a lower number of turns than the load voltage winding section 147. Fig. 4 In the embodiment shown, the control voltage winding section 146 has seven turns and the load voltage winding section 147 has sixteen turns, each with two winding layers. Depending on the coil former size, however, more or fewer winding layers can be provided.

[0083] By dividing the secondary winding 128 of the energy receiving coil 127 into a control voltage winding section 146 and a load voltage winding section 147, it is also possible to adapt the cross-sections of the winding conductor tracks to the respective power requirements of the connected electrical consumers, i.e., the carriage control unit 121 and the load 137 provided on the carriage. Since the power requirements of the carriage control unit 121 are generally lower than the power requirements of sensors or actuators on the carriage 103, the cross-section of the winding conductor track of the control voltage winding section 146 is designed to be smaller than the cross-section of the winding conductor track of the load voltage winding section 147, as in the embodiment in Fig. 4 is shown.

[0084] Fig. 5 shows a second embodiment of the inductive energy transmission device in a highly schematic representation, where Fig. 5A a sectional view through the inductive energy transfer device, Fig. 5B a side view of the inductive energy transfer device, Fig. 5C a plan view of the energy transmitting coil 125 viewed from the perspective of the energy receiving coil 127 and Fig. 5D a top view of the energy receiving coil 127 viewed in the direction of the energy transmitting coil 125.

[0085] The structure of the second embodiment of the inductive energy transmission device in Fig. 5 essentially corresponds to the structure of the first embodiment of the inductive energy transmission device in Fig. 4 The energy receiving coils 127 of the first and second embodiments of the inductive energy transmission device are constructed identically. The difference between the first and second embodiments lies in the design of the secondary winding 128 of the energy receiving coil 127.

[0086] Instead of a nested arrangement of the control voltage winding section 146 and the load voltage winding section 147 of the energy receiving coil 127 of the first embodiment, as shown in Fig. 4 shown are in the Fig. 5 In the second embodiment shown, the control voltage winding section 146 and the load voltage winding section 147 are spatially separated from one another.

[0087] How Fig. 5 As shown, the load voltage winding section 147 is wound between the first power receiving coil outer arm rib 155 and the power receiving coil central rib 157 around the first power receiving coil section 158 of the power receiving coil bobbin surface 154, whereas the control voltage winding section 146 is formed around the second power receiving coil bobbin surface section 159 of the power receiving coil bobbin surface 154 between the power receiving coil central rib 157 and the second power receiving coil outer arm rib 156. The load voltage winding section 147, which is formed with a larger winding conductor cross-section, covers the entire section surface.The control voltage winding section 146, which is designed with a smaller winding conductor cross-section and has fewer turns, extends adjacent to the second energy receiving coil outer arm rib 156 only over a partial area of ​​the second energy receiving coil coil body surface section 159 of the energy receiving coil coil body surface 154.

[0088] Due to the separate arrangement of the control voltage winding section 146 and the load voltage winding section 147 of the energy receiving coil 127, it is not necessary to provide connecting conductor tracks for the winding sectors across the energy receiving coil central rib 157 of the energy receiving coil coil body 153, as in the embodiment in Fig. 4 designed, which enables a simplified structure.

[0089] Fig. 6 shows very schematically the first embodiment of the inductive energy transmission device from Fig. 4 in a variant in which the energy transmitting coil 125 and the energy receiving coil 127 are each designed as circuit board coils. Furthermore, in this variant, a cooling device 164 is additionally provided on the energy receiving coil 127. Fig. 6A shows a sectional view through the inductive energy transfer device. Fig. 6B shows a top view of the inductive energy transfer device. Fig. 6C shows a view of the inductive energy transfer device from below.

[0090] In the printed circuit board coil design, printed conductor tracks are provided on a circuit board made of electrically insulated material instead of winding conductor tracks. The energy transmission coil 125, designed as a flat coil, is formed such that the conductor tracks are printed spirally on an energy transmission coil circuit board 160. Additional recesses are provided in the energy transmission coil circuit board 160, into which the energy transmission coil coil former 148, which has an E-shaped cross section, engages. The printed conductor tracks are located between the central rib and the first and second outer arm ribs of the coil former.

[0091] The energy receiving coil 127 has a first energy receiving coil circuit board 161 and a second energy receiving coil circuit board 162. First conductor track sections of the control voltage winding section 146 and first conductor track sections of the load voltage winding section 147 are printed on the first energy receiving coil circuit board 161, and second conductor track sections of the control voltage winding section 146 and second conductor track sections of the load voltage winding section 147 are printed on the second energy receiving coil circuit board 162. The view in Fig. 6C then further shows that the first conductor track sections of the control voltage winding section 146 on the first energy receiving coil circuit board 161 and the second conductor track sections of the control voltage winding section 146 on the second energy receiving coil circuit board 162 or the first conductor track sections of the load voltage winding section 147 on the first energy receiving coil circuit board 161 and the second conductor track sections of the load voltage winding section 147 on the second energy receiving coil circuit board 162 are each connected to one another via electrical connectors 184 in order to form a closed control voltage winding section 146 or a closed load voltage winding section 147 of the secondary winding 128 of the energy receiving coil 127.

[0092] Like the sectional view in Fig. 6A shows, recesses are provided in the first energy receiving coil circuit board 161 of the energy receiving coil 127 for the energy receiving coil coil body 153, which is E-shaped in cross section and is arranged between the first energy receiving coil circuit board 161 and the second energy receiving coil circuit board 162 in engagement with the recesses of the first energy receiving coil circuit board 161.

[0093] The cooling device 164 for the secondary winding 128 of the energy receiving coil 127 is arranged on the side of the energy receiving coil 127 facing away from the energy transmitting coil 125. The attachment of the cooling device 164 to the secondary winding 128 is possible because the vertical design of the secondary winding 128 allows one winding side to be located outside the voltage transformer formed by the energy transmitting coil 125 and the energy receiving coil 127 and is thus accessible. The cooling device 164 can then be designed such that the cooling device 164 protrudes outward from the carriage head attachment 119 and can be cooled by the airflow of the carriage 103. Cooling fins are particularly suitable as heat sinks for this purpose.

[0094] The Fig. 6 shown variant of the first embodiment of the inductive energy transmission device from Fig. 4 , in which the energy transmitting coil 125 and the energy receiving coil 127 are each designed as circuit board coils, can also be used in the Fig. 5 shown second embodiment of the inductive energy transmission device. Furthermore, the cooling device 164 can also be used in the embodiments in Fig. 4 and Fig. 5 with winding conductors instead of printed conductors. Fig. 6 The variant shown can then also be implemented without a cooling device 164 on the energy receiving coil 127. Furthermore, it is also possible to implement the inductive energy transmission device with a circuit board coil and a wound coil as an energy transmitting coil and an energy receiving coil, respectively.

[0095] The energy transfer from the carriage guide 102, which has the motor module device, to the carriages 103 occurs as follows: As the carriage 103 moves, the position data of the carriage 103 are continuously determined. The carriage guide control unit 133 then selects the motor module 107 in which the energy receiving coil 127 of the carriage 103 is opposite the energy transmitting coil 125 of the motor module 107. Multiple motor modules 107 can also be selected simultaneously, particularly if the energy receiving coil 127 of the carriage 103 overlaps with the energy transmitting coils 125 of neighboring motor modules 107. The carriage guide control unit 133 further determines the amount of energy to be transferred by the energy transmitting coil 125 of the selected motor module 107.The energy transmitting coil 125 of the inductive energy transfer unit is then supplied with an alternating voltage or an alternating current in order to provide the amount of energy to be transferred.

[0096] Fig. 7 shows an electrical circuit diagram of the carriage guide 102 for controlling the energy transmitting coils 125. Each energy transmitting coil 125 is connected to an energy transmitting coil switch 174, which is in the Fig. 7 shown embodiment is designed as an H-bridge. The energy transmitting coil switch 174 is operated by means of an upstream energy transmitting coil driver 163, which in turn is controlled by an energy transmitting coil microcontroller 165. The energy transmitting coil microcontroller 165 can, as in Fig. 7 shown, control the energy transmitting coil drivers 163 of all motor modules 107. It is also possible to provide a separate microcontroller for each energy transmitting coil driver 163 or for groups of drivers, in particular of a motor module. The energy transmitting coil microcontroller 165 is connected to the carriage guide control unit 133 via an energy transmitting coil communication interface 167. For power control, the energy transmitting coil switch 174 is further provided with an energy transmitting coil ammeter 173, which is connected to the energy transmitting coil microcontroller 165 to provide the energy transmitting coil microcontroller 165 with feedback on the amount of energy delivered by the associated energy transmitting coil 125.

[0097] The voltage applied to the primary winding 126 of the energy transmitting coil 125 changes the magnetic flux in the energy receiving coil 127, which in turn results in an alternating voltage in the control voltage winding section 146 or in the load voltage winding section 147 of the secondary winding 128 of the energy receiving coil 127. By appropriately designing the control voltage winding section 146 or the load voltage winding section 147, for example, an open-circuit voltage of 24 V can be achieved in the control voltage winding section 146 and an open-circuit voltage of 48 V in the load voltage winding section 147. The desired voltage values ​​can be adjusted via the number of turns of the winding sections or the respective conductor cross-section.

[0098] The control voltage winding section 146 and the load voltage winding section 147 are each connected to rectifiers. Furthermore, a capacitor can be provided for smoothing purposes in the control voltage circuit or the load voltage circuit, respectively. The carriage control unit 121 can also be used to monitor and influence the load voltage. A switch is then arranged in the load voltage circuit to be able to disconnect the load 137 from the load voltage winding section 147 if necessary. The switch can be actuated by the carriage control unit 121.In the event of load fluctuations in the load voltage circuit, the slide control unit 121 can use the switch to interrupt the connection between the load voltage winding section 147 and the load 137. This prevents, for example, a sudden drop in the load voltage circuit from causing an overvoltage, which could lead to the destruction of the electronics in the load voltage circuit. Disconnecting the load voltage circuit can also serve to save energy in an emergency.

[0099] The direct control of the load voltage circuit on the carriage 103 by the carriage control unit 121 can be carried out much faster than a procedure in which the voltage value is set by the carriage guide control unit 133, which first requires a transmission of the voltage values ​​from the carriage 103 to the carriage guide control unit 133.

[0100] Additionally, an energy storage device can be provided in each of the control voltage circuit and the load voltage circuit to temporarily store energy, which can then be delivered to the slide control unit 121 and / or the load 137 if necessary. Because the control voltage winding section 146 and the load voltage winding section 147 provide two separate voltages on the slide 103, improved energy storage can be achieved. Depending on the requirements, a decision can then be made as to whether the control voltage or the load voltage should be buffered, depending on the respective energy storage device in the control voltage circuit or load voltage circuit.

[0101] Fig. 8 and Fig. 9 show circuit diagrams for the control voltage circuit and the load voltage circuit on the carriage 103, wherein in the embodiment according to Fig. 9 additional energy storage is provided.

[0102] How Fig. 8 As shown, the control voltage winding section 146 is connected to a first rectifier 191, which in turn is connected to the carriage guide control unit 133 via an intermediate first smoothing capacitor 192. The load voltage winding section 147 is connected to a second rectifier 193. The second rectifier 193 is connected to the load 137 via a load voltage circuit switch 195 and an intermediate second smoothing capacitor 194. The load voltage circuit switch 195 is in turn connected to the carriage guide control unit 133 and can be opened or closed by the carriage guide control unit 133.

[0103] In the load voltage circuit between the second rectifier 193 and the load 137, a load voltage circuit ammeter 196 is further provided, which is connected to the carriage guide control unit 133 and which provides feedback to the carriage guide control unit 133 about the current value in the load voltage circuit.

[0104] Fig. 9 shows an extension of the circuit of Fig. 8 with additional energy storage devices. Parallel to the control voltage circuit, the control voltage winding section 146 is connected to a first energy storage device 199 via a third smoothing capacitor 197. The first energy storage device 199 is then further connected to the control voltage circuit.

[0105] Furthermore, a second energy storage device 200 is provided, which is connected in parallel to the load voltage circuit and is connected to the load voltage winding section 147 via a fourth smoothing capacitor 198. The second energy storage device 200 is then further connected to the load voltage circuit.

[0106] The first energy storage device 199 and the second energy storage device 200 are controlled by the slide guide control unit 133. Depending on the demand in the control voltage circuit, the slide guide control unit 133 can thus buffer the control voltage in the first energy storage device 199 and the load voltage in the second energy storage device 200, depending on the demand in the load voltage circuit. The buffered energy can then, in turn, be fed back by the slide guide control unit 133 into the control voltage circuit or the load voltage circuit, respectively, if necessary.

[0107] As with the Fig. 9As shown in the embodiment shown, the first energy storage device 199 and the second energy storage device 200 can form a common energy storage device in order to make the buffered energy available to the carriage control and / or the sensors or actuators connected in the load voltage circuit as needed and depending on the carriage application. List of reference symbols

[0108] 101 Linear transport system 102 Carriage guide 103 Carriage 105 Guide rail element 107 Motor module 109 Pole tooth 111 Drive coil winding 113 Carriage head 117 Magnetic plate 119 Carriage head attachment 121 Carriage control unit 125 Energy transmitting coil 126 Primary winding 127 Energy receiving coil 128 Secondary winding 129 Antenna array 131 Carriage antenna 133 Carriage guide control unit 135 Coil former 136 Coil former surface 137 Load 139 Roller 141 Running surface 143 Position element 145 Position sensor device 146 Control voltage winding section 147 Load voltage winding section 148 Energy transmitting coil coil former 149Energy transmitting coil - coil body surface 150First energy transmitting coil - outer arm rib 151Second energy transmitting coil - outer arm rib 152Energy transmitting coil - central rib 153Energy receiving coil - coil body 154Energy receiving coil - coil body surface 155First energy receiving coil - outer arm rib 156Second energy receiving coil - outer arm rib 157Energy receiving coil - central rib 158FirstEnergy receiving coil coil former surface section 159 Second energy receiving coil coil former surface section 160 Energy transmitting coil circuit board 161 First energy receiving coil circuit board 162 Second energy receiving coil circuit board 163 Energy transmitting coil driver 164 Cooling device 165 Energy transmitting coil microcontroller 167 Energy transmitting coil communication interface 173 Energy transmitting coil ammeter 174 Energy transmitting coil switch 180 First control voltage winding section winding sector 181 Second control voltage winding section winding sector 182 First load voltage winding section winding sector 183 Second load voltage winding section winding sector 184 Connector 191 First rectifier 192 First smoothing capacitor 193 Second rectifier 194 Second smoothing capacitor 195 Load voltage circuit switch 196 Load voltage circuit ammeter 197 Third smoothing capacitor 198 Fourth smoothing capacitor 199 First energy storage device 200 Second energy storage device 202 Outer arm rib204Central rib

Claims

1. An inductive energy-transmitting device for a linear transport system (101), in which at least one magnetically driven carriage (103) moves along a carriage guide (102) comprising a motor module device, wherein the inductive energy-transmitting device comprises an energy-transmitting coil (125) having a primary winding (126) for applying an input voltage, and an energy-receiving coil (127) having a secondary winding (128) for tapping an output voltage, wherein the energy-transmitting coil (125) is arranged on the motor module device and extends along the carriage guide (102), wherein the energy-receiving coil (127) is arranged at the carriage (103) and extends along the carriage (103), wherein the energy-transmitting coil (125) and the energy-receiving coil (127), when the at least one magnetically driven carriage (103) moves along the carriage guide (102) comprising the motor module device, at least partially oppose each other to transfer energy from the energy-transmitting coil (125) to the energy-receiving coil (127), characterized in that the secondary winding (128) of the energy-receiving coil (127) comprises a control-voltage-winding portion (146) and a load-voltage-winding portion (147), the control-voltage-winding portion (146) and the load-voltage-winding portion (147) having separate winding conductor tracks from each other, wherein the control-voltage-winding portion (146) provides a control voltage for tapping by a carriage guide controller (133) on the carriage (103), and wherein the load-voltage-winding portion (147) provides a load voltage for tapping by a load (137) on the carriage (103).

2. The inductive energy-transmitting device according to claim 1, wherein the cross-section of the winding conductor track forming the control-voltage-winding portion (146) is embodied to be smaller than the cross-section of the winding conductor track forming the load-voltage-winding portion (147).

3. The inductive energy-transmitting device according to claim 1 or 2, wherein the number of windings of the control-voltage-winding portion (146) is lower than the number of windings of the load-voltage-winding portion (147).

4. The inductive energy-transmitting device according to any one of claims 1 to 3, wherein the energy-transmitting coil (125) and the energy-receiving coil (127) each comprise a coil body (135), wherein the energy-transmitting coil body (148) of the energy-transmitting coil (125) and the energy-receiving coil body (153) of the energy-receiving coil (127) are aligned in parallel with regard to each other and at least partially face each other when the at least one magnetically driven carriage (103) moves along the carriage guide (102) comprising the motor module device, wherein the area spanned by the primary winding (126) of the energy-transmitting coil (125) is oriented in parallel to the energy-transmitting coil body (148) of the energy-transmitting coil (125), and wherein the surfaces spanned by the control-voltage-winding portion (146) and the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127) are oriented perpendicularly with regard to the energy-receiving coil body (153) of the energy-receiving coil (127).

5. The inductive energy-transmitting device of claim 4, wherein the energy-transmitting coil body (148) of the energy-transmitting coil (125) and the energy-receiving coil body (153) of the energy-receiving coil (127) are each E-shaped in cross-section with two outer arm ribs (202) and a center rib (204) on a coil body surface (136), wherein the E-shaped cross-sections face each other and the outer arm ribs (202) and the central ribs (204) on the coil body surface (136) face each other when the at least one magnetically driven carriage (103) moves along the carriage guide (102) comprising the motor module device, and wherein the primary winding (126) of the energy-transmitting coil (125) is arranged between the first energy-transmitting coil outer arm rib (150) and the second energy-transmitting coil outer arm rib (151) of the energy-transmitting coil body (148) around the energy-transmitting coil central rib (152), and wherein the control-voltage-winding portion (146) and the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127) are arranged between the first energy-receiving coil outer arm rib (155) and the second energy-receiving coil outer arm rib (156) of the energy-receiving coil body (153) around the energy-receiving coil body area (154).

6. The inductive energy-transmitting device according to claim 4 or 5, wherein the energy-receiving coil body (153) of the energy-receiving coil (127) comprises a first energy-receiving coil body area portion (158) and a second energy-receiving coil body area portion (159), and wherein the load-voltage-winding portion (147) is embodied in the first energy-receiving coil body area portion (158) and the control-voltage-winding portion (146) is embodied in the second energy-receiving coil body area portion (159).

7. The inductive energy-transmitting device according to claim 4 or 5, wherein the control-voltage-winding portion (146) and the load-voltage-winding portion (147) of the energy-receiving coil (127) are nested.

8. The inductive energy-transmitting device according to any one of claims 4 to 7, wherein the energy-receiving coil (127) includes a first energy-receiving coil circuit board (161) comprising first winding conductor tracks, a second energy-receiving coil circuit board (162) comprising second winding conductor tracks, and the energy-transmitting coil body (148) arranged between said first energy-receiving coil circuit board (161) and said second energy-receiving coil circuit board (162), and wherein the first winding conductor tracks of the first energy-receiving coil circuit board (161) and the second winding conductor tracks of the second energy-receiving coil circuit board (162) are connected via electrical connectors (184) to embody the control-voltage-winding portion (146) and the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127).

9. The inductive energy-transmitting device according to any one of claims 4 to 8, wherein a cooling device (164) for the control-voltage-winding portion (146) and the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127) is provided on the side of the energy-receiving coil body (153) of the energy-receiving coil (127) facing away from the energy-transmitting coil body (148) of the energy-transmitting coil (125).

10. A magnetically driven carriage (103) for a linear transport system (101), in which the magnetically driven carriage (103) moves along a carriage guide (102) having a motor module device, comprising an inductive energy-transmitting device according to any one of claims 1 to 9, wherein the control-voltage-winding portion (146) of the secondary winding (128) of the energy-receiving coil (127) is connected to a carriage guide controller (133) via a first rectifier (191), and wherein the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127) is connected to a load (137) via a second rectifier (193).

11. The magnetically driven carriage (103) according to claim 10, wherein a load voltage circuit switch (195) is provided between the load-voltage-winding portion (147) of the secondary winding (128) of the energy-receiving coil (127) and the load (137), the load voltage circuit switch (195) being connected to the carriage guide controller (133), wherein the carriage guide controller (133) may open the load voltage circuit switch (195) to disconnect the load (137) from the load-voltage-winding portion (147).

12. The magnetically driven carriage (103) according to claim 10 or 11, wherein a first energy storage (199) is connected to the control-voltage-winding portion (146) and a second energy storage (200) is connected to the load-voltage-winding portion (147), wherein the first energy storage (199) and the second energy storage (200) are set up to output the temporarily stored electrical energy to the carriage guide controller (133) and / or the load (137).

13. A linear transport system (101) comprising at least one magnetically driven carriage (103) according to any one of claims 10 to 12 and a carriage guide (102) comprising a motor module device, wherein the at least one magnetically driven carriage (103) moves along the carriage guide (102), wherein the motor module device comprises a plurality of energy-transmitting coils (125) and is arranged to select at least one energy-transmitting coil (125) on the basis of control information and to adjust an energy transmission from the energy-transmitting coil (125) to the energy-receiving coil (127) on the carriage (103).