WO2025093128A1 - Dispositif de transmission de puissance et/ou d'informations - Google Patents

Dispositif de transmission de puissance et/ou d'informations Download PDF

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Publication number
WO2025093128A1
WO2025093128A1 PCT/EP2023/080665 EP2023080665W WO2025093128A1 WO 2025093128 A1 WO2025093128 A1 WO 2025093128A1 EP 2023080665 W EP2023080665 W EP 2023080665W WO 2025093128 A1 WO2025093128 A1 WO 2025093128A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
section
conductor structure
support structure
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2023/080665
Other languages
German (de)
English (en)
Inventor
Philipp JAUCK
Philipp HERNEGGER
Peter Groiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SES Imagotag GmbH
Original Assignee
SES Imagotag GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SES Imagotag GmbH filed Critical SES Imagotag GmbH
Priority to PCT/EP2023/080665 priority Critical patent/WO2025093128A1/fr
Publication of WO2025093128A1 publication Critical patent/WO2025093128A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0013—Apparatus or processes specially adapted for manufacturing conductors or cables for embedding wires in plastic layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0846—Parallel wires, fixed upon a support layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0009—Details relating to the conductive cores
    • H01B7/0018—Strip or foil conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/009—Cables with built-in connecting points or with predetermined areas for making deviations

Definitions

  • the invention relates to a device for power and/or information transmission and a method for producing this device, a shelf rail comprising this device and a tool for producing the device.
  • a device for power and/or information transmission is known, for example, from WO2022188955A1.
  • the device comprises a support structure, referred to as a conductor support, and three conductor structures, referred to as conductor tracks, and is implemented as part of a shelf rail for supplying electronic devices, in particular electronic display units.
  • Such devices extend over long lengths, in this case along entire shelves, and are required in large quantities, for example, for all shelves of a store on all shelf levels.
  • the conductor tracks are disclosed in WO2022188955A1 either as a round wire or as a flat conductor track. According to the teaching of WO2022188955A1, flat conductor tracks can be easily implemented as tracks on the support plate, e.g., similar to printed circuit boards.
  • the conductor tracks are designed as wires that partially protrude beyond the outer surface of the conductor carrier.
  • manufacturing advantages and also advantages resulting from contacting by a mentioned device are pointed out.
  • wires as conductor tracks have a substantially round cross-section that protrudes raised above the surface of the conductor carrier. This cross-section, unlike a flat cross-section that is essentially flush with the surface of the conductor carrier, allows tactile feedback during insertion. of the electronic device as soon as one of the electronic device's contacts touches one of the wires. This allows the user to easily determine whether the respective contact of the electronic device has already reached or passed the conductor carrier. Wires as conductors continue to be attractive due to their robustness compared to, for example, flat conductors.
  • the conductors are made of copper, which has the correspondingly advantageous electrical conductivity required for power and/or information transmission.
  • This also comes with high costs. Due to the high demand, the use of these materials also poses a burden on the environment, as the materials require intensive mining and high energy consumption to be extracted or recycled.
  • the invention therefore has for its object to provide an improved device, a manufacturing method for such a device, a shelf rail with such a device and a tool for manufacturing said device, which avoids the problems mentioned above.
  • the subject matter of the invention is therefore a device which has: a carrier structure and at least one conductor structure provided for transmitting power and/or information, which is carried by the carrier structure, wherein the conductor structure has a longitudinal extent and a cross-section oriented normal to the longitudinal extent, characterized in that the conductor structure is formed by a conductor strip or a conductor foil and that the shape of the cross section of the conductor strip or the conductor foil has an arc shape, wherein viewed along the cross section the conductor strip or the conductor foil is, on the one hand, connected in regions to the carrier structure and, on the other hand, is freely accessible in regions from outside the carrier structure in order to be contactable there for the transmission of power and/or information.
  • the object is further achieved by an electronic shelf rail according to claim 12.
  • the invention therefore relates to an electronic shelf rail comprising a device according to the invention.
  • This object is further achieved by a manufacturing method according to claim 14.
  • the invention therefore relates to a manufacturing method for producing a device, wherein the device has a carrier structure and at least one conductor structure provided for transmitting power and/or information, which is carried by the carrier structure, wherein the conductor structure has a longitudinal extent and a cross-section oriented normal to the longitudinal extent, wherein the manufacturing method comprises the following steps, namely: shaping, in particular reshaping, the conductor structure present as a conductor strip or conductor foil in such a way that an arc shape is created as the shape of the cross section of the conductor strip or conductor foil, and connecting the conductor structure to a carrier structure.
  • the object is further achieved by a machine according to claim 16.
  • the invention therefore relates to a machine for producing a device, wherein the device has a carrier structure and at least one conductor structure provided for transmitting power and/or information, which is carried by the carrier structure, wherein the conductor structure has a longitudinal extent and a cross-section oriented normal to the longitudinal extent, wherein the machine has a shaping section which is designed to shape, in particular reshape, the conductor structure present as a conductor strip or conductor foil so that an arc shape is created as the shape of the cross section of the conductor strip or conductor foil, and has a connecting section which is designed to connect the shaped conductor strip or the shaped conductor foil to the carrier structure.
  • the measures according to the invention have the advantage of creating a device in which the conductor structure is provided with optimized material requirements, specifically with reduced material requirements, thus drastically reducing environmental impact. This measure therefore enables the provision of a device with an improved ecological balance compared to comparable known devices and at significantly lower costs, because precisely the cost-driving conductor structure is improved in terms of its properties.
  • Life cycle assessment is a method for recording and evaluating environmentally relevant processes. Principles and rules for conducting life cycle assessments were established internationally in ISO standards 14040:2006 and 14044:2006 and incorporated into German standards (DIN EN ISO 14040, DIN EN ISO 14044). (Source: Federal Environment Agency, Presidential Office / Press and Public Relations, Internet, Wörlitzer Platz 1, 06844 Dessau-Roßlau, Germany; https://www.umweltbundetician.de).
  • the conductor strip or foil in its unformed, i.e., original state, in which it was unwound, for example, from a storage reel has a substantially rectangular cross-section.
  • the height of the cross-section is relatively small compared to the width of the cross-section because the conductor strip or foil itself is relatively thin.
  • this conductor structure is essentially flat, i.e., a flat conductor strip or foil, viewed along its longitudinal extent and transversely thereto prior to processing, the curvature of the conductor structure that results during processing, running along the longitudinal extent but extending transversely to the longitudinal extent, i.e., a curved cross-section, allows the conductor structure to be reliably connected to the support structure in certain areas, and at the same time, the area on the surface of the conductor structure accessible for contacting can be present, shaped, or structured in such a way that tactile feedback can be obtained when contacting another device, as is the case with the known wire-based solution.
  • the present solution overcomes the prevailing negative attitude towards a conductor structure formed as a conductor strip or foil (which is flat prior to processing).
  • the change in direction along the cross-section has proven to be the basis for both reliable fastening and free accessibility for contacting.
  • this curved deformation along the longitudinal extent increases rigidity and thus facilitates integration or joining with the support structure.
  • the integration of the conductor strip into the carrier structure can also be described in such a way that at least a first part of the conductor strip is connected to the carrier structure, in particular is encompassed by the carrier structure, and at least a second part of the conductor strip protrudes from the carrier structure and/or protrudes beyond the carrier structure in order to be contactable for the transmission of power and/or information.
  • the shape of the support structure is not mandatory, but preferably plate-shaped
  • the support structure may have one, two, three or more conductor structures, which are essentially spaced apart and parallel to one another along the longitudinal extent of the support structure.
  • the conductor structure is freely accessible on the surface of the carrier structure, at least in the area intended for contacting. Preferably, it protrudes from the carrier structure so that the conductor structure can be contacted by an external contacting element, such as a spring contact or a light guide (or light), of an electronic device.
  • an external contacting element such as a spring contact or a light guide (or light) of an electronic device.
  • the bending of the conductor structure gives it a high level of stability even with reduced material usage, so that a safe and wear-resistant contact with the contacting element is possible.
  • the shape of the cross-section of the conductor structure in other words, the "profile” of the conductor structure—can have exactly one arched shape or several arched shapes—or, in other words, at least one "arched cross-section” or "arched profile”—normal to the longitudinal extent.
  • This arched shape or these arched shapes are located between two lateral end sections of the conductor structure. These lateral end sections delimit the conductor structure, viewed along its longitudinal extent, to the left and right sides.
  • the entire cross-section corresponds to an arched shape.
  • the shape of the cross-section is arched
  • the ladder structure has two opposing curved surfaces, with these surfaces curved in the same direction.
  • the radii of curvature of two opposing surfaces therefore essentially point in the same direction, for example, both point to the left in cross-section, or both point to the right in cross-section, or both point upwards in cross-section, or both point downwards in cross-section.
  • the curved region or arch therefore has an outer wall or outer surface that is curved medially, i.e., towards the median plane, and an outer wall or outer surface that is curved laterally, i.e., away from the median plane.
  • the thus formed arc of the conductor structure or the arcs of the conductor structure extend perpendicular to the longitudinal extent or length of the conductor structure between the two end sections of the conductor structure over at least part of the conductor structure, preferably over the entire conductor structure.
  • the conductor structure can have multiple arcs.
  • the conductor structure has an odd number of arcs, in particular three arcs.
  • the conductor structure has exactly one arc.
  • the arch shape is preferably a round arch.
  • the arch shape can also be in the form of a pointed arch, a turdor arch or a keel arch.
  • the arch shape can be in the form of a have a gable arch or the shape of the cross section has a square arch or a squarely curved area.
  • the ladder structure shaped according to the arch shape, has an inner side that is preferably oriented toward the supporting structure.
  • the inner side corresponds to the side of the arch reveal.
  • the conductor structure formed according to the arch shape further has an outer side that is preferably oriented away from the support structure. This outer side corresponds to the side of the arch spine.
  • the arch thus formed in the conductor structure forms a bulge in the material of the conductor structure.
  • the arch therefore provides a crown that gives stability to the ladder structure.
  • the arched shape of the cross-section can form a fold along the longitudinal extent of the conductor structure.
  • the fold axis thus runs essentially parallel to the longitudinal extent (length) of the conductor structure.
  • the fold axis runs parallel to the longitudinal extent of the conductor structure.
  • the curved conductor structure thus has a hinge zone in which the curved area or bend can exhibit the previously mentioned arch shapes. This hinge zone transitions into the legs or flanks of the conductor structure.
  • the device can be used to supply different entities.
  • the device can be provided to provide power transmission for lighting.
  • the device can be designed to be attached to the ceiling of a room, where the conductor track, in particular two conductor tracks, for which an electrical power supply can be coupled.
  • lighting devices that have a corresponding contacting element can be attached to the device in order to be supplied with electrical current via this. This allows flexible positioning of the lighting devices and thus adaptive design of the lighting scene in the room.
  • the material requirements are optimized because less material is needed for the conductor structure than for wires or cables.
  • the device is preferably used in a shelf rail. Therefore, the device is preferably designed for use in a shelf rail. It is therefore designed or shaped so that it can be connected, preferably detachably, to an electronic shelf label and there forms the electrical and/or mechanical interface for electronic devices that are to be attached to the shelf rail. However, it can also be permanently integrated into the shelf rail. Due to the large number of shelf rails required in a store, the material savings add up, so that the use of the device in a shelf rail leads to a huge improvement in the ecological balance. Furthermore, the device enables simple contact, so that the shelf rail is easy to install and electronic devices, such as electronic shelf labels, can be easily installed on the device or the shelf rail.
  • the device can be designed to be mechanically coupled to the shelf rail.
  • the device preferably has a connecting structure.
  • the connecting structure can, for example, be designed to be inserted into a connecting shaft of the shelf rail, so that the device and the shelf rail are coupled to one another.
  • the device, in particular its connecting structure is designed such that it is compatible with the shelf rail known from WO2022188955A1 and can thus replace the device (cable carrier) having wires there, without any changes to the rest of the electronic shelf rail being necessary.
  • the device When used in a shelf rail, the device is preferably designed for reversible connection to the shelf rail, particularly via the connecting structure. This feature allows for easy replacement of the device or the shelf rail, for example, if one of them is damaged. This allows the device or the remaining shelf rail to be reused, further saving resources. The device can also be disposed of and recycled separately.
  • the device can be designed to guide light.
  • the conductor structure is made of a light-conducting material, for example, glass or glass fibers or a plastic such as polycarbonate or polymethyl methacrylate.
  • the support structure is preferably relatively opaque compared to the conductor structure. Such a device for guiding light allows light to be directed to the location with minimal material requirements. the conductor structure that protrudes from the support structure to absorb and release information so that it can be transmitted in a targeted manner.
  • the device is preferably provided for transmitting an electrical power and/or information transmission. Therefore, according to a preferred aspect of the invention, the conductor structure is made of an electrically conductive material, preferably of a metal, particularly preferably of a metal comprising copper and/or aluminum, in particular of copper or aluminum.
  • the device can thus easily replace existing devices with round-section wires—such as those known as cable carriers from WO2022188955A1. without requiring any modifications to the electronic devices to be connected.
  • the shelf rail equipped with the solution-specific device can directly replace conventional shelf rails with correspondingly material-intensive conductor tracks.
  • the conductor structure has a higher conductivity, in particular electrical conductivity, than the support structure.
  • the support structure is designed as an insulator or insulation. This allows several, in particular three, individual "conductor strips” bent transversely to their longitudinal extent to be provided next to one another, in particular parallel to one another at a distance from one another, along the longitudinal extent of the support structure.
  • the device with an electrically conductive conductor structure is used to transmit power and/or information between (at least) two entities.
  • One of the entities typically acts as an electrical consumer, while the other acts as a supply device.
  • the supply device can have a computer for generating a control signal for this purpose.
  • the supply device can also be designed, for example, to provide a connection to the mains power or it can have a power supply unit to provide a corresponding energy supply with a desired voltage.
  • the supply device can also have an energy storage device, in particular a battery or accumulator, for providing the electrical power or be connected to it.
  • the supply device can be a shelf rail control device, also known as a "rail controller.”
  • a shelf rail control device provides the power and information supply for the devices attached to the shelf rail.
  • the information supply can, for example, include display content for screens attached to the shelf rail.
  • the electronic shelf rail comprises the device and the shelf rail control device, which is electrically connected to the line structure of the device.
  • the device can be located at a distance from a "central wall" of the electronic shelf labels and oriented essentially parallel to it.
  • the device can also be mounted directly on the central wall be localized or form the central wall - at least in some areas, so that depending on the chosen design, contacting of the conductor structure is possible at different positions of the electronic shelf rail.
  • the device can be used to be contactable with (at least) one of the entities, in particular the supply device, via an additional (electrically conductive) connection, for example a connector or a terminal, for example a lamp terminal or spring-loaded terminal.
  • an additional (electrically conductive) connection for example a connector or a terminal, for example a lamp terminal or spring-loaded terminal.
  • the device is designed to contact both entities via the conductor structures, i.e., to electrically connect these two entities to one another.
  • the conductor structure can be provided and configured to be contacted by the contacting element, in particular by the spring contact, in a direction normal to the longitudinal extent of the conductor structure and/or in a direction parallel to the longitudinal extent of the conductor structure. "In the direction” here means that the contacting element is moved in this direction relative to the device upon contacting.
  • the device can also be configured to be grasped upon contacting.
  • the device In the context of the shelf rail, it has proven particularly advantageous for the device to be configured to be coupled to a shelf rail control device, which contacts the (or each of the) conductor structure(s) in a direction parallel to their longitudinal extent, and for the device to be configured to be coupled to electronic devices, in particular electronic price display units, referred to in technical jargon as ESLs, wherein the electronic devices preferably contact the conductor structure in a direction normal to the longitudinal extent of the conductor structure.
  • ESLs electronic price display units
  • the conductor structure has a longitudinal extent, a width extent, and a thickness extent, wherein the longitudinal extent is greater than the width extent and the thickness extent has the smallest dimension, and wherein the conductor structure is bent such that the two end sections of the width extent are inclined towards one another along the longitudinal extent.
  • the width extent is thus flanked or limited by the two end sections.
  • one or more bends can be present between the end sections, wherein the end sections can be oriented toward or away from each other, i.e., can be inclined or oriented in such a way.
  • the device can extend along an entire shelf section or an entire shelf and ensure power and/or information transmission at any location.
  • the conductor structure has a depth dimension (thickness) and a width dimension (width), wherein the depth dimension is smaller than the width dimension by at least a factor of 1.5, preferably by a factor of 2, and particularly preferably by a factor of 10. It has been shown that this allows a particularly favorable balance between mechanical strength and material requirements to be achieved.
  • the conductor structure is therefore preferably designed as a conductor track and has a longitudinal extension that is significantly greater than its width and depth.
  • the conductor structure has - as mentioned - two lateral end sections, which end sections along the conductor structure parallel to its The longitudinal extension.
  • at least one of the end sections of the conductor structure is encompassed by the support structure.
  • Such a device, in which the end section is encompassed is particularly easy to manufacture because it can be produced, for example, in a single step together with a casting process or
  • both end sections of the conductor structure is encompassed by the support structure. This further increases stability while optimizing the ecological balance.
  • the arched shape of the conductor structure that is, where the cross-section has an arched shape—is supported by the support structure.
  • material of the support structure is located beneath the curvature or arched shape.
  • the interior of the arched shape, that is, at the reveal of the arched shape, is contacted and supported by the support structure.
  • the arched shape of the conductor structure protrude from the support structure, i.e., to be curved away from the support structure, or for the arched shape of the conductor structure to protrude into the support structure, i.e., to be curved toward the support structure.
  • the arched shape thus protrudes from the support structure or beyond the surrounding outer contour of the support structure, or into the support structure or into the surrounding contour of the support structure.
  • This measure allows the conductor structure to be contacted at the bend (i.e. where the conductor structure has the arch shape) on its outside, i.e. at the arch back, or in the area surrounding the arch back.
  • the load (force) applied during contacting can be transferred to the legs or flanks of the conductor structure, so that the load is diverted there. This measure therefore enables increased Load capacity through targeted load dissipation. At the same time, fault-resistant contact is ensured.
  • the conductor structure lined in the bent region points outward from the support structure with its bent region, allowing contact to be made with the conductor structure there.
  • any load transferred to the conductor structure by the contact can be absorbed and compensated directly by the lined structure, i.e., by the support structure.
  • the conductor structure protrudes into the support structure with the bent area and/or protrudes out of the support structure with the bent area.
  • Several bent areas can also be provided, which protrude into and out of the support structure, for example.
  • the conductor structure is at least partially, preferably completely, supported by the support structure on the side, while the opposite side of the conductor structure is accessible for contacting. This measure enables contacting the conductor structure using a contacting element of the electronic device, so that tactile feedback is received upon contacting as soon as the contacting elements of the device interact with the bend. Contrary to popular belief, a device can thus be created with a planar conductor structure that provides tactile feedback.
  • the user feels when the contacting element has contacted the conductor track at the desired location when contacting the device, for example using an electronic device with spring contacts as the contacting element.
  • the shape of the curved section is largely freely selectable, it can be equivalent to that of a circular conductor structure or even arbitrarily shaped.
  • the spring contact can first slide over a first curved area that protrudes from the support structure and then engage another curved area that protrudes into the support structure. This allows not only equivalent, but even improved tactile feedback compared to existing devices.
  • the support structure may have a lower stiffness than the conductor structure, or both the support structure and the conductor structure may have a similar or even the same stiffness. This enables flexible positioning of the device, if necessary even in a curved or wavy shape along its length.
  • the support structure has a higher rigidity than the conductor structure. This measure enables precise positioning of the device and improved contact with the conductor structure because it stabilizes the conductor structure in its intended location within the device.
  • the support structure preferably has a shear stiffness and/or flexural stiffness that is 5 times higher, particularly preferably 10 times higher, and most preferably 100 times higher, than the conductor structure.
  • Such increased stiffness can be achieved in particular by dimensioning the conductor structure, i.e. its dimensions and area moments of inertia, taking into account the respective material properties, but can also be influenced by a suitable material selection.
  • the support structure is preferably made of a polymer, in particular a plastic.
  • the support structure preferably comprises at least one of the following materials: PVC (polyvinyl chloride); PE (polyethylene), in particular HDPE and/or LDPE; PP (polypropylene); PA (polyamide); ABS (acrylonitrile-butadiene-styrene copolymer); PC (polycarbonate); SB (styrene-butadiene); PMMA (polymethyl methacrylate); PUR (polyurethane); PET (polyethylene terephthalate); PSU (polysulfone).
  • PVC polyvinyl chloride
  • PE polyethylene
  • PP polypropylene
  • PA polyamide
  • ABS acrylonitrile-butadiene-styrene copolymer
  • PC polycarbonate
  • SB styrene-butadiene
  • PMMA polymethyl methacrylate
  • PET polyethylene terephthalate
  • PSU polysulfone
  • the support structure can also comprise a biomaterial.
  • the support structure can comprise at least one of the following materials: thermoplastic starch or starch; CA (cellulose acetate); PLA (polylactic acid); and PHB (polyhydroxybutyric acid).
  • the support structure can also be made of a composite material.
  • the support structure can be made of wood-plastic composite (WPC).
  • the support structure is formed from a single material, preferably molded, particularly preferably cast and/or extruded and/or pressed. This leads to particularly good recyclability.
  • the carrier structure comprises polypropylene (PP for short), particularly preferably the carrier structure consists of polypropylene.
  • the conductor structure is preferably connected to the support structure in a form-fitting manner, in particular in a form-fitting and material-fitting manner. This enables stable fastening of the conductor structure while simultaneously allowing simple and resource-efficient production and using a conductor structure of low thickness.
  • Such a positive connection can be achieved, for example, by pouring the material of the support structure, such as a thermoplastic, around the conductor structure, so that the end sections of the conductor structure are enclosed by the liquid material of the support structure. When the material of the support structure solidifies, the end sections of the conductor structure are positively fixed in the support structure. This can also result in a material-to-material bond due to the sticky, molten material of the support structure, so that in addition to the positive connection, a material-to-material bond also secures the conductor structure to the support structure.
  • the material of the support structure such as a thermoplastic
  • the device has proven advantageous for the device to have a longitudinal extension that is longer than the width of the device, preferably at least by a factor of 2, particularly preferably at least by a factor of 5. This allows for long-range power and/or information transmission—particularly when used in a shelf rail—with minimal material usage, particularly on the side of the conductor structure.
  • the longitudinal extension of the device preferably runs correspondingly, particularly preferably parallel, to the longitudinal extension of the conductor structure.
  • the longitudinal extent of the device may be longer than the longitudinal extent of the conductor structure.
  • the conductor structure preferably extends substantially along the entire device. The longitudinal extent of the conductor structure thus essentially corresponds to the longitudinal extent of the device and the longitudinal extent of the support structure.
  • the width of the device preferably corresponds to the width of the conductor structure.
  • the device further has a depth extension which is smaller than the longitudinal extension and the width extension.
  • the depth extension of the device preferably runs corresponding to the depth extension of the conductor structure.
  • the device can have exactly one conductor structure.
  • the device has at least two, in particular electrically conductive, conductor structures. This enables simple provision of power and/or information transmission because a voltage can thus be provided between the two conductor structures.
  • the device has at least three, in particular exactly three, in particular electrically conductive, conductor structures. This further improves power and/or information transmission because, for example, one conductor structure can be used to provide a reference potential, while another conductor structure provides a power supply, i.e. a corresponding supply voltage, and another conductor structure provides an information supply, i.e. an information or data signal or a modulated signal.
  • Multiple conductor structures can also provide different information or data signals relative to the reference potential, so that more information can be transmitted per unit of time.
  • the conductor structures can be attached to different sides of the support structure.
  • the conductor structures can, for example, be attached to two opposite sides of the support structure. This measure allows for a compact design of the device.
  • the same number of conductor structures can be attached to both sides of the support structure, or a different number.
  • the longitudinal extension of the conductor structures preferably runs parallel to each other.
  • the device is configured such that all conductor structures are located on one side of the support structure. This results in a device that is easy to contact, so that a device that is easy to couple can be provided with optimized material requirements.
  • three correspondingly curved electrically conductive conductor structures are arranged on one side of the support structure.
  • the longitudinal extension of the support structures runs parallel to one another. This is particularly advantageous when used in a shelf rail, because it allows power transmission to be carried out separately from information transmission.
  • the device can be manufactured using the manufacturing process introduced at the beginning.
  • the bend can be produced using common processes, including various tensile and/or compression forming methods. Forming can be performed using bending processes according to DIN 8580 or deep-drawing processes according to DIN 8584. For example, bending with linear tool movement, such as free bending, die bending, sliding draw bending, roll bending, or flexion bending, or bending with rotating tool movement, such as roll bending or swivel bending, can produce the bend.
  • the bend can also be produced by flanging or edging.
  • Rolling, extrusion and/or impact forming are preferred processes for forming.
  • the conductor structure is preferably formed by being continuously guided through a forming device, in particular by being pulled and/or pushed. This allows for continuous or quasi-continuous forming of long lengths of the conductor structure.
  • the conductor structure can be present before the forming device as a foil-like or strip-like electrically conductive material, in particular as a metal foil, preferably as a copper foil, rolled up on a roll. If this essentially flat or level initial version of the conductor structure is guided through the forming device, the conductor structure is formed therein, so that the conductor structure is shaped into the arc shape. Thus, the entire roll can be formed without interruption.
  • a roller The conductor structure is preferably formed by passing it through a forming die with the appropriate shape.
  • the forming die preferably has a changing cross-section, so that on the input side it has the shape of the cross-section of the conductor structure in its initial state, i.e. preferably rectangular, or a shape to accommodate the shape of the conductor structure.
  • the forming die On the output side, the forming die preferably has a cross-section essentially the desired shape of the arc.
  • a certain amount of over-forming can be advantageous here, so that after recovery of the elastic deformation, the desired deformation is achieved.
  • the tool preferably comprises the forming device, in particular comprising the forming die.
  • the support structure can be manufactured in a suitable shape, and the conductor structure can be glued to the support structure and/or inserted into a corresponding opening, particularly into slots, in the conductor structure.
  • the conductor structure can be connected to the support structure by pressing or pressing it in.
  • the conductor structure can, for example, be nailed, riveted, or screwed to the support structure.
  • the conductor structure has proven particularly advantageous to connect the conductor structure to the carrier structure during a manufacturing step of the carrier structure. This increases production efficiency and provides a particularly stable connection.
  • at least a portion of the material of the carrier structure is brought into contact with the conductor structure in a liquid and/or viscous state.
  • the bent conductor structure(s) can be placed in a mold, after which the liquid or viscous material of the support structure is poured over it.
  • the bent area of the conductor structure can rest flat against the mold in corresponding recesses, so that the end sections extend into the area to be poured.
  • the end sections are encompassed by the material, creating a positive and possibly material-to-material connection after curing. It has proven particularly advantageous if the connection of the conductor structure to the support structure occurs continuously over the length of the support structure. This means that one longitudinal section of the conductor structure is connected to the conductor structure in a continuous process. After connecting the longitudinal section, the next longitudinal section is connected to the conductor structure, creating a continuous process.
  • the conductor structure is connected to the carrier structure in a manufacturing step of the carrier structure in a continuous process, in particular in an extrusion process step.
  • the manufacturing method is preferably carried out in such a way that the joining comprises the following process steps: forming the carrier structure in an extrusion process or extrusion process step, and joining the formed conductor structure with the still liquid or viscous carrier structure in such a way that the conductor strip or the conductor foil is, on the one hand, partially connected to the carrier structure and, on the other hand, is partially freely accessible from outside the carrier structure, and curing the carrier structure in combination with the conductor structure.
  • connection section comprises: an extrusion section which is designed to form the carrier structure in an extrusion process or extrusion process step, and a joining section which is designed to join the formed conductor structure to the still liquid or viscous carrier structure in such a way that the conductor strip or the conductor foil is, on the one hand, partially connected to the carrier structure and, on the other hand, partially freely accessible from outside the carrier structure, and a curing section which is designed to cure the carrier structure.
  • the shaping section, the extrusion section and the connection function are combined in a combination tool.
  • the combination tool is a modified extruder with downstream cooling, to which the plastic granulate for producing the support structure is fed from above, to which - e.g. from the left - the conductor structure is fed, which is deformed in the extruder transversely to its longitudinal extent so that its cross section has the arched shape, and in which, before the solidifying support structure leaves the extruder, the The formed conductor structure is joined to the still liquid or viscous mass of the carrier structure.
  • the carrier structure joined to the formed conductor structure leaves the extruder and is cooled in a water bath, solidifying the mass of the carrier structure and creating a permanent bond with the conductor structure.
  • the process of feeding the conductor structure, feeding the granulate, extruding the carrier structure, joining the conductor structure to the carrier structure, and subsequent cooling takes place continuously.
  • the conductor structure is fed into the combination tool on the input side.
  • a storage reel can be provided, for example, from which the conductor structure is unwound according to the feed rate required by the combination tool.
  • the solidified support structure is separated into segments of defined lengths, as required for the intended purpose. In particular, the length is cut to the length of the shelf rail into which the device will be inserted as a cable carrier.
  • the device is therefore preferably a device which is obtainable by a method which has the following steps, namely: forming, in particular reshaping, a conductor structure present as a conductor strip or conductor foil, so that the arched shape is created as the shape of the cross section of the conductor strip or conductor foil, and connecting the conductor strip or conductor foil to a carrier structure in an extrusion process or extrusion process step.
  • the method comprises the following steps, namely: forming the carrier structure in an extrusion process or extrusion process step, and joining the formed conductor structure with the still liquid or viscous carrier structure in such a way that the conductor strip or the conductor foil is, on the one hand, partially connected to the carrier structure and, on the other hand, partially freely accessible from outside the carrier structure, and curing the carrier structure in combination with the conductor structure.
  • the bent conductor structure can be inserted into an extruder or a forming chamber located downstream of the extruder through a corresponding opening, similar to the casting mold. whereupon the liquid or viscous material of the carrier structure is poured or pressed onto the conductor structure, which preferably does not become liquid or viscous in this case, whereupon the carrier structure with the conductor structure is moved through an extruder die, so that after the device has cooled down the conductor structure is embedded in the carrier structure.
  • the opening in the shaping chamber for introducing the conductor structure has approximately the shape of the bent conductor structure. It can also be the opening of the forming die.
  • the conductor structure is guided through a support structure, for example as a correspondingly shaped recess in a wall element of the shaping chamber, whereby the support structure prevents the conductor structure from being undermined by liquid material and removed from its desired position.
  • the extruder feeds the liquid or viscous material of the carrier structure, in particular from above, into the shaping chamber.
  • the forming chamber contains the extruder die, through which the support structure with the embedded conductor structure is extruded. After the support structure has cured, a form-fitting and, if necessary, material-to-material bond is formed.
  • the tool preferably comprises the shaping chamber, in particular comprising the extruder die.
  • the conductor structure can have a constant cross-section along its longitudinal extension or a cross-section that varies along its length.
  • the former results in a particularly stable and resilient conductor structure, especially under tensile loads.
  • the latter results in a conductor structure that can be embedded particularly stably in the conductor structure by bonding it to a liquid or viscous material.
  • Fig. 1 shows a conductor structure for a device for providing power and/or information transmission
  • Fig. 2A shows the device for providing power and/or information transmission
  • Fig. 2B is a sectional view of the device
  • Figs. 3A - 3C show the device providing power and/or information transmission to an electronic price label on a shelf rail
  • Fig. 4A - 43 further embodiments of the device
  • Fig. 5 a machine for manufacturing the device
  • FIG. 6A - 6F Cross sections of the elements of the device at different stages of device manufacture.
  • Fig. 7 a forming die of the machine for forming the conductor structure.
  • Figure 1 shows the cross section of a conductor structure 2 of a device 1 shown in Figures 2A and 2B (in a bent state in cross section normal to the longitudinal extent L (length) of the conductor structure 2).
  • the conductor structure 2 is intended for connection to a carrier structure 3 (see Figures 2A and 2B).
  • the conductor structure 2 is designed here as a copper strip.
  • the conductor structure 2 has the shape of an arc 4 in its cross section, i.e., an arc shape 4, so that the conductor structure 2 has a curved area.
  • the arc 4 thus forms a hinge zone 5 in which the conductor structure 2 bends.
  • This arc shape 4 extends over the entire longitudinal extent L of the conductor structure 2, so that it has a fold.
  • the hinge zone 5 merges into legs or flanks 6, which each terminate with the end sections 7 of the conductor structure 2.
  • the conductor structure has a depth extension T (thickness) that is normal to the longitudinal extension L.
  • the conductor structure 2 has a width dimension (width) of the material, which is composed of the lengths B1 and B2 of the legs or flanks 6 and the length B3 of the hinge zone 5.
  • the width dimension of the material approximately corresponds to the width dimension of the conductor structure 2 in the unbent state, although certain differences may occur as a result of compression and expansion during deformation.
  • the conductor structure 2 has a width dimension B in the bent state.
  • the conductor structure 2 shown here is not drawn to scale to better illustrate the individual areas. According to a preferred embodiment, the conductor structure 2 has, for example, the following dimensions: A depth T of approximately 0.03 mm. A width dimension of the material B1 + B2 + B3 of approximately 8 mm. Any length dimension L, with several meters also possible.
  • Figure 2A shows the device 1 with three conductor structures 2 embedded in the support structure 3, with a view of the respective curved areas, i.e., the hinge zone 5 of the conductor structures 2.
  • the conductor structures 2 protrude from the support structure 3 for contacting.
  • the device 1 On the left, the device 1 is shown shortened by a broken edge.
  • Figure 2A shows a section line AA.
  • Figure 2B shows the device 1 in section along section line A-A.
  • the legs or flanks 6 and the end sections 7 are essentially located in the support structure 3 or encompassed by it.
  • FIG 3A shows the device 1 adapted for use in an electronic shelf rail 8 for supplying an electronic price label, which is referred to in technical jargon as an Electronic Shelf Label, abbreviated to ESL 11.
  • the device 1 has a connecting structure 9, which is inserted into a connecting shaft 10 of the shelf rail 8.
  • the conductor structures 4 are located at a predetermined position in the shelf rail 8.
  • the shelf rail 8 is designed such that the conductor structure 4 protrudes into the shelf rail 8, specifically into a shaft provided in the shelf rail for accommodating the ESL 11. This provides particularly good protection against external influences.
  • the ESL 11 has (in this case, three) spring contacts 12 for contacting the conductor structures 2.
  • the conductor structures 2 are contacted by a supply device configured as a shelf rail control device 14 (also referred to as a rail controller), as also indicated in Figure 3C.
  • the shelf rail control device 14 terminates the shelf rail laterally at one of its two ends and contacts the three conductor structures 2 there.
  • the supply device or the shelf rail control device 14 provides a reference potential via the first conductor structure 2, a supply voltage relative to the reference potential via the second conductor structure 2, and an information signal for the ESLs 11 via the third conductor structure 2.
  • the shelf rail 8, or specifically the device 1 thus provides the connection between the supply device and the ESL 11 in order to supply the ESL 11 with electrical power and information.
  • Figure 3B shows the ESL 11 coupled to the shelf rail 8, with each of the three spring contacts 12 contacting exactly one of the three conductor structures 2.
  • Figure 3C shows the shelf rail 8, shown in section, in its end region, where it is coupled to the shelf rail control device 14.
  • the shelf rail control device 14 has three spring contacts 15, each of which contacts the conductor structures 2 of the device 1 in the direction of their longitudinal extent.
  • the spring contacts 15 are double-bent, so that they each have a first section 15A, which is attached to a base structure 16 of the shelf rail control device 14, a second section 15B, which extends normal to the first section 15A from the base structure 16 to the conductor structure 2, and a third section 15C, which extends normal to the second section 15C, here into the image plane.
  • the third section 15C thus runs parallel to the respective conductor structure 2 and nestles against it in order to provide contact over a large area.
  • Figure 4A shows an embodiment of the device 1, wherein each end section 7 of the conductor structure 7 is encompassed by the support structure 3.
  • the section of the conductor structure 7 with the arc shape 4 lies partially outside the support structure 3.
  • One end section 7 lies outside the support structure and can be contacted, for example, by means of spring contacts 12 or 15.
  • Figure 4B shows an embodiment of the device 1, wherein both end sections 7 of the conductor structure 2 encompass the support structure 3.
  • the conductor structure 2 is integrally bonded to the support structure 3 by means of an adhesive.
  • the conductor structure 2 can be contacted between the two end sections 7 by means of spring contacts 12 and 15, respectively. This provides a relatively large contact area.
  • Figure 4C shows an embodiment of the device 1, wherein both end sections 7 of the conductor structure 2 are encompassed by the support structure 3.
  • Each conductor structure 2 has two sections with an arc shape 4, so that an area 17 is created between the two sections, which can be contacted by the spring contacts 12 and 15, respectively.
  • the two arc shapes 4 thus create an area 17 which, due to its size, is easy to contact while simultaneously having good mechanical strength.
  • Figure 4D shows an embodiment of the device 1, wherein both end sections 7 of the conductor structure 2 are encompassed by the support structure 3.
  • the conductor structure 2 has in its cross section two sections with an arc shape 4, which are arranged inside the support structure 3 are located to further increase the strength of the connection between conductor structure 2 and support structure 3.
  • Figure 4E shows an embodiment of the device 1, wherein both end sections 7 of the conductor structure 2 are encompassed by the support structure 3.
  • the conductor structure 2 has a plurality of arched shapes 4 in cross-section in order to provide a particularly strong connection between the conductor structure 2 and the support structure 3.
  • Figure 4F shows an embodiment of the device 1, wherein both end sections 7 of the conductor structure 2 are encompassed by the support structure 3, and wherein the end sections 7 are inclined relative to one another in such a way that they form an acute-angled triangle.
  • Figure 4G shows an embodiment of the device 1, wherein, similar to Figure 4B, both end sections 7 of the conductor structure 2 encompass the support structure 3.
  • the conductor structure 2 is firmly bonded to the support structure 3, for example by means of adhesive.
  • the conductor structure 2 can be contacted between the two end sections 7 by means of spring contacts 12 and 15, respectively.
  • the support structure 3 has a shape adapted to the curved shape 4 of the conductor structure, so that the conductor structures 2 protrude from the support structure 3.
  • Figure 4H shows an embodiment of the device 1, wherein each end section 7 of the conductor structure 7 is encompassed by the support structure 3.
  • the conductor structure 2 has recesses 13 so that these are filled by the support structure 3.
  • these recesses 13 can also be used with the other embodiments mentioned, in particular with those embodiments in which at least a portion of the conductor structure 2 is encompassed by the support structure 3, in order to reinforce the connection between the conductor structure 2 and the support structure 3.
  • In addition to holes, notches, indentations, etc. can also be used as recesses 13.
  • the extrusion section 22 has an extruder 32 and a shaping chamber 33.
  • the extruder 32 is designed here as a screw extruder and is designed to heat a plastic granulate that forms the starting material for the support structure 3, convert it into a liquid or viscous state, and press it into the shaping chamber 33.
  • the shaping chamber 33 has guide grooves 35 for guiding the shaped conductor structures 2, so that they are guided stably without the liquid or viscous material of the support structure 3' flooding the area of the conductor structure 2 that is intended for contacting.
  • the shaping chamber 33 has an extruder die 34 through which the conductor structure 2, connected to the possibly still viscous support structure 3', can be passed such that the device 1 has the desired shape after leaving the extruder die 34.
  • the downstream curing section 24 has a cooling section designed as a water bath 25.
  • the device 1 After the curing section 24, the device 1 is ready as a strand. Depending on the rigidity of the device 1, this strand can be wound onto a roll and/or cut into desired lengths.
  • drives in particular drive rollers, can be provided both at the end and in between in order to regulate the respective tension and/or the feed of the conductor structure 2 or the device 1.
  • the forming section 20 and the extrusion section 22 form a combination tool.
  • the forming section 20 and the extrusion section 22 can be configured such that the forming section 20 directly merges into the extrusion section 22, in particular, that the forming die 26 merges directly into the forming chamber 33 or is even housed in the forming chamber 33.
  • the machine 18 thus allows the device 1 to be manufactured in a material-saving manner, the three conductor structures 2 being unrolled from the storage rolls 25 and aligned by the conductor structure positioning section 19A, as can be seen in Figure 6A, which shows the sectional view along the section A-A.
  • the conductor structures 2 have the desired arc shape 4 after leaving the forming die 26 and thus the shaping section 20, wherein in this embodiment, the arc shape 4 is a semicircular arc shape 4.
  • the conductor structure 2 is then conveyed into the connection section 21, where the conductor structure 2 is connected to the still liquid or viscous extruded carrier structure 3'.
  • Figure 6E in combination with Figure 5 shows the conductor structure 2, which is surrounded by the still viscous support structure 3' at its end sections 7.
  • the conductor structure 2 and the support structure 3' are located in the forming chamber 33 and are formed by drawing and/or
  • the conductor structure 2 is pressed and, on the other hand, the material of the support structure 3' is pushed through the extruder die 34 by the extruder 32, whereby the support structure 3' acquires the desired shape.
  • the support structure 3 is cooled in a water bath 35 so that its shape is solidified and the conductor structure 2 is firmly connected to the support structure 3.
  • Figure 6F shows the device 1 after leaving the machine 18.
  • the device 1 can now be cut to the desired length.
  • the machine 18 can further comprise a cutting device (e.g., designed as a saw or laser, etc.).
  • Figure 7 shows another embodiment of the forming die 26 of the forming section 20.
  • the conductor structure 2 is received at the input side 30, whereby, a few centimeters before the input side 30, it has already been forced from its original straight, flat cross-sectional shape into a slightly curved shape by the constraining forces of the forming die 26.
  • the conductor structure 2 is further bent into the curved shape 4.
  • the forming die 26, specifically the grooves 29 of the forming die 26, have a polished surface. This enables low-wear forming of the conductor structure 2, even with very thin material thicknesses of the conductor structure 2, so that a stable device 1 can be produced with optimized material requirements.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne un dispositif comprenant : une structure de support et au moins une structure conductrice prévue pour transmettre de la puissance et/ou des informations et supportée par la structure de support, la structure conductrice ayant une étendue longitudinale et une section transversale orientée perpendiculairement à l'étendue longitudinale, caractérisée en ce que la structure conductrice est formée par une bande conductrice ou une feuille conductrice et en ce que la section transversale de la bande conductrice ou de la feuille conductrice a une forme arquée, dans lequel, vu le long de la section transversale, la bande conductrice ou la feuille conductrice est reliée, en parties, à la structure de support et est librement accessible, en parties, depuis l'extérieur de la structure de support de façon à pouvoir être mise en contact avec celle-ci pour la transmission de puissance et/ou d'informations.
PCT/EP2023/080665 2023-11-03 2023-11-03 Dispositif de transmission de puissance et/ou d'informations Pending WO2025093128A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2023/080665 WO2025093128A1 (fr) 2023-11-03 2023-11-03 Dispositif de transmission de puissance et/ou d'informations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2023/080665 WO2025093128A1 (fr) 2023-11-03 2023-11-03 Dispositif de transmission de puissance et/ou d'informations

Publications (1)

Publication Number Publication Date
WO2025093128A1 true WO2025093128A1 (fr) 2025-05-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931598A (en) * 1988-12-30 1990-06-05 3M Company Electrical connector tape
WO1995009456A1 (fr) * 1993-09-30 1995-04-06 Minnesota Mining And Manufacturing Company Matrice de circuits conducteurs
US20220064500A1 (en) * 2018-12-17 2022-03-03 LlNTEC CORPORATION Conductive adhesive sheet, laminate, and heating device
WO2022188955A1 (fr) 2021-03-09 2022-09-15 Ses-Imagotag Gmbh Appareil de support, en particulier crémaillère, pour supporter un dispositif électronique, de préférence une unité d'affichage électronique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931598A (en) * 1988-12-30 1990-06-05 3M Company Electrical connector tape
WO1995009456A1 (fr) * 1993-09-30 1995-04-06 Minnesota Mining And Manufacturing Company Matrice de circuits conducteurs
US20220064500A1 (en) * 2018-12-17 2022-03-03 LlNTEC CORPORATION Conductive adhesive sheet, laminate, and heating device
WO2022188955A1 (fr) 2021-03-09 2022-09-15 Ses-Imagotag Gmbh Appareil de support, en particulier crémaillère, pour supporter un dispositif électronique, de préférence une unité d'affichage électronique

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