WO2021228692A1 - Élément de fixation de bord - Google Patents

Élément de fixation de bord Download PDF

Info

Publication number
WO2021228692A1
WO2021228692A1 PCT/EP2021/062057 EP2021062057W WO2021228692A1 WO 2021228692 A1 WO2021228692 A1 WO 2021228692A1 EP 2021062057 W EP2021062057 W EP 2021062057W WO 2021228692 A1 WO2021228692 A1 WO 2021228692A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening element
edge fastening
carrier
resilient prong
planar object
Prior art date
Application number
PCT/EP2021/062057
Other languages
English (en)
Inventor
Christopher Patrick WARNER
Original Assignee
Signify Holding B.V.
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 Signify Holding B.V. filed Critical Signify Holding B.V.
Publication of WO2021228692A1 publication Critical patent/WO2021228692A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present disclosure is directed generally to an edge fastening element.
  • embodiments disclosed herein relate to fastening a planar object, such as a LED board, to a carrier, such as a luminaire housing.
  • LEDs Light-emitting diodes
  • LEDs have the advantages of providing a bright light, being reasonably inexpensive, having a long operational life, and drawing very little power. Accordingly, LEDs are increasingly employed for a variety of illumination applications as an alternative to other forms of lighting, such as incandescent, halogen, etc.
  • the present disclosure is directed to an apparatus and a method for fastening an at least partially planar object, such as a LED board, to a carrier, such as a luminaire housing. More particularly, in various embodiments, an edge fastening element configured with selected aspects of the present disclosure may be employed to fasten at least partially planar objects of various sizes, thicknesses, and/or configurations to carriers.
  • the edge fastening element may clamp over the edge of an at least partially planar object with a “spring” pressure that firmly holds the planar object in place.
  • the edge fastening element may be constructed from insulator materials such as various types of plastic, therefore reducing or eliminating the potential for grounding or sparking issues if the edge fastening element physically contacts an electrical trace.
  • the edge fastening element may be employed in any luminaire fabricated from sheet metal, with the LED board as the light source.
  • an edge fastening element for engaging a planar object to a carrier may include a first portion having a first resilient prong; a second portion having a second resilient prong, a connecting portion between the first portion and the second portion, and a projection tab extending laterally from the connecting portion.
  • the first resilient prong and the second resilient prong may be configured to generate a first biasing force and a second biasing force respectively to engage the planar object and the carrier together.
  • the first resilient prong may press against an exposed surface of the planar object, and the edge fastening element may be insertable through a slot through the carrier to retain the carrier between the projection tab and the second resilient prong.
  • a light emitting arrangement may include a light emitting diode (LED) board including at least one LED chip, a luminaire housing for receiving the LED board, one or more slots through the luminaire housing, and one or more edge fastening elements gripping at least one edge of the LED board and inserted through the one or more slots to engage the LED board to the luminaire housing.
  • Each of the one or more edge fastening elements may include a first portion having a first resilient prong extending towards an exposed surface of the LED board, a second portion having a second resilient prong extending towards a surface of the luminaire housing that faces away from the exposed surface of the LED board, a connecting portion between the first portion and the second portion, and a projection tab extending laterally from the connecting portion.
  • the first resilient prong and the second resilient prong may be configured to exert opposing biasing forces on the LED board and the luminaire housing.
  • a method of engaging one or more planar objects to a carrier using one or more edge fastening elements may include placing the one or more planar objects above the carrier in a manner to align at least one edge of the one or more planar objects with one or more slots through the carrier and inserting the one or more edge fastening elements through the one or more slots to engage the one or more planar objects to the carrier via opposing biasing forces applied by the one or more edge fastening elements onto the one or more planar objects and the carrier.
  • Fig. l is a perspective view of an edge fastening element, according to an embodiment of the present disclosure.
  • Fig. 2 is a side view of the edge fastening element of Fig. 1, attaching a planar object, such as a LED board, to a carrier, such as a luminaire housing, according to an embodiment of the present disclosure.
  • Fig. 3 is a perspective view of the edge fastening element of Fig. 1 attaching a planar object, such as a LED board, to a carrier, such as a luminaire housing, according to an embodiment of the present disclosure.
  • Fig. 4 is a flow diagram of a processor for engaging a planar object to a carrier with the edge fastening element of Fig. 1, according to an embodiment of the present disclosure.
  • Fig. 1 is a perspective view of an edge fastening element 10, in accordance with an embodiment of the present disclosure.
  • the edge fastening element 10 may include a first portion 12, a second portion 20, and a connecting portion 16.
  • the first portion 12 may include a first resilient prong 14.
  • the first portion 12 may be in an arcuate shape with a radius R and the first portion 12 forms a semi-circular arc from the connection portion 16 to the first resilient prong 14. (see Fig. 2).
  • the first portion 12 may start at a first end 13 of the connecting portion 16 and arc about 270° to connect with the first resilient prong 14, and the radius R may be, for instance, about 1.4 inches.
  • the second portion 20 may comprise a second resilient prong 22.
  • the second portion 20 may start at a second end 15 of the connecting portion 16 and extend in an acute angle alpha a with respect to the connecting portion 16 to connect with the second resilient prong 22.
  • the acute angle alpha a may be approximately 20°.
  • the connecting portion 16 may be in a linear (e.g., planar) shape between the first end 13 and the second end 15.
  • the connecting portion 16 may connect the first portion 12 and the second portion 20.
  • a projection tab 18 may extend laterally (e.g., perpendicularly) from connecting portion 16.
  • the first resilient prong 14 may extend towards an exposed surface 5 of an at least partially planar object 2, while the second resilient prong 22 may extend towards a surface 6 of a carrier 3.
  • the at least planar object 2 will be referred to herein simply as “planar object 2,” but it should be understood that there is no requirement that planar object be entirely, or even exactly, planar.
  • fastening elements 10 configured with selected aspects of the present disclosure may be used to secure an object that includes an at least generally, but not exactly, planar portion to another object, which may or may not also include a generally planar portion.
  • surfaces 5 and 6 may occupy parallel planes and may face opposite directions, as shown in Fig.
  • the connecting portion 16 between the first portion 12 and the second portion 20 may be perpendicular to another surface 7 of the carrier 3 and/or to the exposed surface 5 of planar object 2.
  • the projection tab 18 may extend laterally, and in some cases perpendicularly, from the connecting portion 16, and in some embodiments may be approximately parallel to the surface 7 of the carrier 3 when fastening element 10 is deployed.
  • an offset portion 17 with a sloped face 19 may be located between the connecting portion 16 and the projection tab 18 to accommodate an edge 21 of the carrier 3 as shown in Fig. 2.
  • the projection tab 18 may extend from a midsection of the connecting portion 16, although this is not required.
  • first portion 12 and the second portion 20 are in different configurations.
  • first portion 12 and the second portion 20 may be in the same configuration.
  • first portion 12 may also extend in an acute angle alpha a with respect to the connecting portion 16 to connect with the first resilient prong 14 pointing towards the exposed surface 5 of the planar object 2.
  • first portion 12 may extend in a different acute angle with respect to the connecting portion 16.
  • first portion 12 and second portion 20 may also be implemented in accordance with of the present disclosure.
  • first resilient prong 14 and second resilient prong 22 may be in any configurations that allow the first resilient prong 14 and the second resilient prong 22 to be adjacent to the exposed surface 5 of the planar object 2 and the surface 6 of the carrier 3 respectively to be able to apply opposing biasing forces thereupon as described below.
  • the edge fastening element 10 may be constructed from a relatively flexible material that allows the first resilient prong 14 and the second resilient prong 22 to exert opposing biasing forces upon the planar object 2 and the carrier 3.
  • the edge fastening element 10 may be made of an insulator material which is relatively flexible, such as different types of plastic, including, but not limited to, acrylic, polycarbonate, nylon, or any other plastic type materials that would be suitably strong enough to accomplish the desired outcome and meet certain standards and/or regulations (e.g., UL/ETL requirements). Being constructed with an insulator material, the edge fastening element 10 may not interfere with (e.g., short) electrical traces, which adds to its versatility.
  • the planar object 2 may be a LED board 2, and the carrier 3 may be a luminaire housing 3.
  • the LED board 2 and the luminaire housing 3 may be made of any suitable materials to allow the LED board 2 and the luminaire housing 3 to meet certain standards and/or regulations while also maintaining durability in light of the one or more conditions under which the LED board 2 may be exposed. Examples of such materials may include, but not limited to, aluminum, stainless steel, fiberglass, plastic, nylon, and rubber.
  • the LED board 2 may comprise one or more LED chips 1 on the exposed surface 5.
  • the LED board 2 may be mounted on the surface 7 of the carrier 3 and then secured to carrier 3 by one or more edge fastening elements 10.
  • the number of LED chips 1 and LED boards 2 may vary, and the LED chip 1 and the LED board 2 may be arranged in different arrays or configurations.
  • the LED chip 1 described herein may include any type of LED technology, including, but not limited to, chip on board or discrete dies.
  • the LED board 2 may have other different types of light sources, such as light-organic LEDs (OLEDs) chips, disposed thereon.
  • the LED chip 1 may be electrically coupled to each other.
  • multiple LED chips 1 may be electrically series-connected in some way, for example, in a row, as shown in Fig. 3.
  • Control and/or power signals may be delivered to the LED board 2 by a power source (e.g., a LED driver) located within, on, and/or external to the LED board 2 (not shown here). Such power and/or control signals may be used to illuminate the LED chip 1 on the LED board 2.
  • a power source e.g., a LED driver
  • Such power and/or control signals may be used to illuminate the LED chip 1 on the LED board 2.
  • one or more edge fastening elements 10 may be used to secure the planar object 2 to the carrier 3.
  • fastening elements 10 may be deployed in pairs on both sides of the planar object 2 and inserted through respective slots 4.
  • the slots 4 may be provided through the carrier 3 according to specific size of the planar object 2.
  • the symmetric arrangement of the slots 4 with corresponding edge fastening elements 10 located along a length of both sides of the planar object 2 may be replaced by other configurations, such as a random placement of the slots 4 and corresponding edge fastening elements 10 along a length of one or both sides of the planar object 2.
  • different numbers and/or configurations of slots 4 may be employed in order to accommodate various LED board widths for different performance requirements.
  • the shape and/or size of the slot 4 may vary.
  • the slot 4 may be punched into the carrier 3 as a rectangular shape.
  • the fastening element 10 may have a cross sectional shape or profile (looking along connecting portion 16) that is similarly rectangular.
  • the slot 4 may be any size and/or shape, and fastening element 10 in general, and second portion 20 along with the second resilient prong 22 in particular, may be sized and shaped accordingly as shown in Figs. 2 and 3.
  • the edge fastening element 10 may generate opposing biasing forces to engage the planar object 2 and the carrier 3 together.
  • the first resilient prong 14 may be deflected or motivated by exposed surface 5 from a default position (as shown in the upper dashed line) to a tensioned position (as shown in the upper solid line).
  • the first resilient prong 14 may grip the edge of the planar object 2 by a first biasing force B1 by the first resilient prong 14 pressing against the exposed surface 5 of the planar object 2.
  • the first resilient prong (14) is deformed in an inward/upward perpendicular direction in relation to the exposed surface (5) and the semi-circular arc when engaged with the exposed surface (5), as shown in Fig. 2.
  • the second portion 20 along with the second resilient prong 22 may be pressed towards the connecting portion 16 (as shown in the lower dashed line) to reduce the cross-sectional size of the edge fastening element 10 in order to squeeze through the slot 4.
  • the second portion 20 along with the second resilient prong 22 may be relaxed from a first configuration (as shown in the lower dashed line) to a second configuration (as shown in the lower solid line).
  • a second biasing force B2 may be generated by the second resilient prong 22 pressing against the surface 6 of the carrier 3.
  • the relative position and thickness of carrier 3 vis-a-vis attributes of second resilient prong 22 prevents second resilient prong 22 from returning to its fully relaxed configuration (shown in Fig. 1).
  • the carrier 3 With the combination of abutment of the projection tab 18 against the surface 7 of carrier 3 and the biasing force B2 by the second resilient prong 22, the carrier 3 may be retained between the projection tab 18 and the second resilient prong 22.
  • the direction of the first biasing force B1 and the second biasing force B2 may oppose each other.
  • the first resilient prong 14 may exert the first biasing force B1 upon the exposed surface 5 of the planar object 2.
  • the second resilient prong 22 may exert the second biasing force B2 upon the bottom surface 6 of the carrier 3.
  • the first biasing force B1 and the second biasing force B2 cooperate to engage the planar object 2 and the carrier 3 together.
  • Fig. 4 is a flow diagram illustrating an example method 40 for using the edge fastening element 10 to fasten the planar object 2 to the carrier 3.
  • method 40 may begin at block 41, one or more planar objects 2 may be placed above the carrier 3 in a manner to align at least one edge of the planar object 2 with one or more slots 4 on the carrier 3.
  • one or more edge fastening elements 10 may be inserted through the one or more slots 4 on the carrier 3 to engage the planar object 2 to the carrier 3 via opposing biasing forces B1 and B2 onto the planar object 2 and the carrier 3.
  • Using the edge fastening element 10 described herein allows for flexibility in both the sizes and the mounting configurations of the planar object 2.
  • the edge fastening element 10 may accommodate any (at least partially) planar objects 2 with any widths and/or any thickness, e.g., up to 2mm.
  • the edge fastening element 10 can be removed easily for repair and/or replacement.
  • the installation process of the edge fastening element 10 is also faster and less expensive than using the equivalent number of other fasteners, such as screws, as the edge fastening element 10 snaps into place without the need of other tools, such as rotary drivers, for installation.
  • the edge fastening element 10 requires no sheer formed lances to be used in combination, therefore the planar object 2 is not limited to be mounted in a specific location on the carrier 3. Consequently, the surface 7 of the carrier 3 remains clear and flat.
  • the edge fastening element 10 may also be used to fasten other types of planar objects 2 to other types of carriers 3.
  • the planar object 2 may be a medium that includes, and on which are disposed, one or more of a number of discrete components (e.g., a capacitor, a power terminal, an integrated circuit, a resistor, an electrical lead, etc.) that are interconnected with each other by a number of wire traces embedded in the planar object 2.
  • the planar object 2 may include, but is not limited to, a board, a wiring board, a printed wiring board, or a printed circuit board.
  • inventive embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed.
  • inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein.
  • a reference to “A and/or B”, when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
  • the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements.
  • This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified.
  • “at least one of A and B” can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention concerne un élément de fixation de bord (10) destiné à mettre en prise un objet plan (2) avec un support (3), et peut comprendre une première partie (12) pourvue d'une première dent élastique (14) ; une seconde partie (20) pourvue d'une seconde dent élastique (22) ; une partie de liaison (16) entre la première partie (12) et la seconde partie (20), et une partie saillante (18) prenant naissance latéralement au niveau de la partie de liaison (16). La première dent élastique (14) et la seconde dent élastique (22) sont conçues pour générer respectivement une première force de sollicitation (B1) et une seconde force de sollicitation (B2) de façon à mettre en prise l'objet plan (2) et le support (3) ensemble.
PCT/EP2021/062057 2020-05-15 2021-05-06 Élément de fixation de bord WO2021228692A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202063025681P 2020-05-15 2020-05-15
US63/025,681 2020-05-15
EP20176597.1 2020-05-26
EP20176597 2020-05-26

Publications (1)

Publication Number Publication Date
WO2021228692A1 true WO2021228692A1 (fr) 2021-11-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/062057 WO2021228692A1 (fr) 2020-05-15 2021-05-06 Élément de fixation de bord

Country Status (1)

Country Link
WO (1) WO2021228692A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024509A (en) * 1958-07-11 1962-03-13 Production Metal Stamping Comp Fastening means and method of applying the same
DE202013006326U1 (de) * 2013-07-15 2013-07-30 Bjb Gmbh & Co. Kg Befestigungsmittel
US20130288508A1 (en) * 2011-01-12 2013-10-31 Takashi Sekine Connector
EP2886945A1 (fr) * 2013-12-18 2015-06-24 Regent Beleuchtungskörper AG Fixation d'une plaquette et d'une optique d'une lampe
DE202015107015U1 (de) * 2015-12-22 2016-01-19 Bjb Gmbh & Co. Kg Befestigungselement zur Anordnung einer Leiterplatte auf einem Leuchtenbauteil
DE102018105004A1 (de) * 2018-03-05 2019-09-05 Vossloh-Schwabe Deutschland Gmbh Leuchte

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024509A (en) * 1958-07-11 1962-03-13 Production Metal Stamping Comp Fastening means and method of applying the same
US20130288508A1 (en) * 2011-01-12 2013-10-31 Takashi Sekine Connector
DE202013006326U1 (de) * 2013-07-15 2013-07-30 Bjb Gmbh & Co. Kg Befestigungsmittel
EP2886945A1 (fr) * 2013-12-18 2015-06-24 Regent Beleuchtungskörper AG Fixation d'une plaquette et d'une optique d'une lampe
DE202015107015U1 (de) * 2015-12-22 2016-01-19 Bjb Gmbh & Co. Kg Befestigungselement zur Anordnung einer Leiterplatte auf einem Leuchtenbauteil
DE102018105004A1 (de) * 2018-03-05 2019-09-05 Vossloh-Schwabe Deutschland Gmbh Leuchte

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