The present invention relates to electronic assemblies, and more specifically, to an assembly including at least an interface that may be attached to an edge of a flexible substrate.
Electronics manufacturing typically uses circuit board materials such as, for example, polytetrafluoroethylene (Teflon), or composite materials like FR-4, FR-1, CEM-1 or CEM-3. At least one limitation in these materials is their rigidity. Rigidity is not a problem when devices are relatively large and flat. However, the miniaturization of devices, the advent of devices that have non-uniform shape including, for example, curved monitors, wearable devices, etc. has made this characteristic of traditional circuit board materials more of an issue. At least one solution to this problem may lie in flexible substrates. Flexible substrates employing, for example, polyethylene terephthalate (PET) may provide a surface to which electronic components may be mounted that may be bent, twisted, flexed, etc. without affecting the performance of the circuitry. Electronics may then be designed to accommodate applications not serviceable utilizing traditional materials.
While flexible substrates may grant design flexibility, flexible substrates must also be able to integrate with existing systems. Most systems will not use flexible substrates exclusively, and thus, must include a way to, for example, mount flexible substrates into traditional hardware, couple electronic circuitry on a flexible substrate to traditional circuitry, etc. Existing connector technologies including, for example, zero insertion force (ZIF) sockets may be problematic when used in conjunction with flexible substrates. For example, these types of connectors are attached to a substrate using certain connection points (e.g., via screwing, soldering, riveting, etc.). These connection points may form a strong attachment when a substrate is rigid. However, when used with a flexible substrate, the connection points may stress the pliable material to the point where a failure may occur in the functioning of the circuitry on the flexible substrate (e.g., due to extreme deformation of the flexible substrate.)
Reference should be made to the following detailed description which should be read in conjunction with the following figures, wherein like numerals represent like parts:
Although the following Detailed Description will proceed with reference being made to illustrative embodiments, many alternatives, modifications and variations thereof will be apparent to those skilled in the art.
This disclosure is directed to an edge assembly for attaching to flexible substrates. In general, an assembly may couple to an edge of a flexible substrate to retain the substrate and, in at least one embodiment, may also electronically couple the flexible substrate to a power source. An example assembly may comprise at least a first edge component and a compression retainer component. An example first edge component may include at least one conductor to mate with conductors on a surface of a flexible substrate after the first edge component is affixed to an edge of the flexible substrate by the compression retainer component. The at least one conductor may convey power to at least one device (e.g., light emitting diode (LED)) mounted on the flexible substrate. The edge assembly may also comprise a second edge component, wherein the flexible substrate may be compressed between the first and second edge components and held in place by compressive force provided by the compression retainer component. The first/second edge components may be more rigid than the flexible substrate. The first edge component may further comprise an extension to which is routed an end of the at least one first edge component conductor. The extension may be accessible from outside of the edge assembly via a port in the compression retainer component. For example, the port may accept an apparatus (e.g., a power cable) for providing power to the flexible substrate via the extension. Alternatively, the port may allow the extension to be plugged into an external socket for delivering power to the flexible substrate. At least one benefit that may be realized by the edge assembly is that the flexible substrate may be held securely without being damaged while power is also conveyed to the flexible substrate.
In at least one embodiment, an assembly for coupling to a flexible substrate may comprise, for example, at least a first edge component and a compression retainer component. The first edge component may be to couple to a first surface of a flexible substrate. The first edge component may include at least one conductor to mate with at least one conductor on the first surface of the flexible substrate. The compression retainer component may affix at least the first edge component to the flexible substrate.
In at least one embodiment, the assembly may comprise a second edge component to couple to a second surface of the flexible substrate opposite of the first surface. The first edge component and the second edge component may be, for example, more rigid than the flexible substrate. The compression retainer component may then affix the first and second edge components to the flexible substrate by compressing the flexible substrate between the first and second edge components using a clipping action. The first surface may comprise at least one light emitting diode (LED) coupled to the at least one first surface conductor, the at least one first surface conductor causing the at least one LED to emit light by conveying power to the at least one LED. For example, the first surface may comprise a plurality of conductors and the first edge component may comprise a separate conductor to mate with each of the plurality of first surface conductors. Alternatively, the first surface may comprise a plurality of conductors and the first edge component comprises one conductor to mate with the plurality of first surface conductors concurrently.
In at least one embodiment, the first edge component may also comprise an extension to which an end of the at least one first edge component conductor is routed. The compression retainer component may comprise a port to accept the extension when the compression retainer component is affixing the first edge component to the flexible substrate. For example, the port may be configured to receive an apparatus to provide power to the flexible substrate via the extension. Alternatively, the assembly may further comprise a socket to receive the extension and to convey power to the flexible substrate via the extension. An example lighting device consistent with the present disclosure may comprise, for example, at least one flexible substrate, a power source and an assembly. The at least one flexible substrate may comprise at least one light emitting component. The assembly may retain at least an edge of the at least one flexible substrate to the cause the at least one light emitting component to emit light by conveying power from the power source to the at least one flexible substrate. The assembly may include, for example, at least a first edge component and a compression retainer component. The first edge component may couple to a first surface of the flexible substrate, the first edge component including at least one conductor to mate with at least one conductor on the first surface of the flexible substrate. The compression retainer component may affix at least the first edge component to the flexible substrate, the compressing retainer component including a port allowing power to be received from the power source. An example for affixing an assembly to a flexible substrate consistent with the present disclosure may comprise applying a first edge component including at least one conductor to a surface of a flexible substrate including at least one conductor in a manner that allows the at least one first edge component conductor to be coupled to the at least one flexible substrate conductor, and affixing the first edge component to the flexible substrate with a compression retention component.
System 100 may comprise flexible substrate 102 to which edge assembly 108 may be attached. Flexible substrate 102 may include at least conductors 104 and components 106. For example, conductors 104 may be circuit traces based on a conductive material that is woven into flexible substrate 102, embedded within flexible substrate 102, bonded to flexible substrate 102, sprayed/printed on flexible substrate 102 (e.g., using conductive ink), etc. For example, in at least one implementation conductors 104 may comprise copper strips or ribbons that are fully exposed (e.g., coupled to a surface of flexible substrate 102) or at least partially exposed (e.g., enclosed, at least in part, within flexible substrate 102) to a degree that allows selective coupling with other parts of system 100 such as other conductors, components, etc. Conductors 104 may also be extended beyond the edges of flexible substrate 102 to better facilitate external coupling. Components 106 may then be coupled to conductors 104 via solder, adhesive, a mechanical binding, etc. in manner that may allow power to be conveyed to components 106 via conductors 104. The arrangement of conductors 104 and/or components 106 disclosed in
Edge assembly 108 may comprise, for example, at least first edge component 110 and compression retention component 118. In at least one embodiment, edge assembly 108 may also include second edge component 116. First edge component 110 and/or second edge component 116 may be constructed using a material that is more rigid that flexible substrate 102 such as, for example, traditional circuit board material, plastic, metal, etc. The use of a more rigid material may allow edge assembly 108 to both retain and protect the edge of flexible substrate 102. First edge component 110 may comprise at least one conductor 112. Conductor 112 is shown in
Compression retention component 118 may comprise, for example, at least extended members 120 and 122 that may generate compressive force to affix at least first edge component 110 to flexible substrate 102 using a “clipping” action (e.g., similar to how a binder clip may hold a group of papers together). Compression retention component 124 may be constructed of materials including, but not limited to, plastic, metal, wood, etc. such that extended members 120 and 122 may flex in manner allowing compression to be generated inwardly (e.g., towards each other). Compression retention component 118 may also comprise port 124 to accept extension 114 upon introduction of compression retention component 118 into edge assembly 108. Port 124 may simply be a hole formed in the back of compression retention component 118 to allow external access to extension 114. However, port 124 may further comprise mechanical retention and/or electrical components to accept an apparatus (e.g., a power cable) for conveying power to flexible substrate 102. Different configurations for port 124 will be discussed in regard to at least
In lighting device 400, flexible substrate 102 may be coupled to, and supported by, equipment 402 for the purpose of generating light. For example, flexible substrate 102 may be held or draped in a certain orientation so that light is emitted in a certain direction, with a certain intensity, etc. In one example implementation, lighting device 400 may be a ceiling mounted light fixture. Power supply 404 may generate power that may be provided to flexible substrate 102 via apparatus 406. Apparatus 406 may plug into edge assembly 108, which may convey the power to flexible substrate 102. As discussed in regard to
While
As used in this application and in the claims, a list of items joined by the term “and/or” can mean any combination of the listed items. For example, the phrase “A, B and/or C” can mean A; B; C; A and B; A and C; B and C; or A, B and C. As used in this application and in the claims, a list of items joined by the term “at least one of” can mean any combination of the listed terms. For example, the phrases “at least one of A, B or C” can mean A; B; C; A and B; A and C; B and C; or A, B and C.
The term “coupled” as used herein refers to any connection, coupling, link or the like by which signals carried by one system element are imparted to the “coupled” element. Such “coupled” devices, or signals and devices, are not necessarily directly connected to one another and may be separated by intermediate components or devices that may manipulate or modify such signals. Likewise, the terms “connected” or “coupled” as used herein in regard to mechanical or physical connections or couplings is a relative term and does not require a direct physical connection.
Thus, this disclosure is directed to an edge assembly for attaching to flexible substrates. An example assembly may comprise at least a first edge component and a compression retainer component. An example first edge component may include at least one conductor to mate with conductors on a surface of a flexible substrate after the first edge component is affixed to an edge of the flexible substrate by the compression retainer component. The edge assembly may also comprise a second edge component, wherein the flexible substrate may be compressed between the first and second edge components and held in place by the compression retainer component. The first edge component may further comprise an extension, including the at least one conductor, that may be used to convey power from a power source to the flexible substrate. The extension is accessible from outside the flexible substrate via a port in the compression retainer component.
According to one aspect there is provided an assembly for coupling to a flexible substrate. The assembly may comprise a first edge component to couple to a first surface of a flexible substrate, the first edge component including at least one conductor to mate with at least one conductor on the first surface of the flexible substrate and a compression retainer component to affix at least the first edge component to the flexible substrate.
According to another aspect there is provided a lighting device. The lighting device may comprise at least one flexible substrate comprising at least one light emitting component, a power source and an assembly to retain at least an edge of the at least one flexible substrate and to the cause the at least one light emitting component to emit light by conveying power from the power source to the at least one flexible substrate, the assembly including a first edge component to couple to a first surface of the flexible substrate, the first edge component including at least one conductor to mate with at least one conductor on the first surface of the flexible substrate and a compression retainer component to affix at least the first edge component to the flexible substrate, the compressing retainer component including a port allowing power to be received from the power source.
According to another aspect there is provided a method for affixing an assembly to a flexible substrate. The method may comprise applying a first edge component including at least one conductor to a surface of a flexible substrate including at least one conductor in a manner that allows the at least one first edge component conductor to be coupled to the at least one flexible substrate conductor and affixing the first edge component to the flexible substrate with a compression retention component.
While the principles of the invention have been described herein, it is to be understood by those skilled in the art that this description is made only by way of example and not as a limitation as to the scope of the invention. Other embodiments are contemplated within the scope of the present invention in addition to the exemplary embodiments shown and described herein. Modifications and substitutions by one of ordinary skill in the art are considered to be within the scope of the present invention, which is not to be limited except by the following claims.
This application claims the benefit of U.S. Provisional Application No. 62/087,089 filed Dec. 3, 2014, which is herein incorporated by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US2015/060895 | 11/16/2015 | WO | 00 |
Number | Date | Country | |
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62087089 | Dec 2014 | US |