GB2530020A - Protective apparatus for use with a printed circuit board - Google Patents

Protective apparatus for use with a printed circuit board Download PDF

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Publication number
GB2530020A
GB2530020A GB1415462.9A GB201415462A GB2530020A GB 2530020 A GB2530020 A GB 2530020A GB 201415462 A GB201415462 A GB 201415462A GB 2530020 A GB2530020 A GB 2530020A
Authority
GB
United Kingdom
Prior art keywords
printed circuit
circuit board
protective
protective apparatus
pair
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.)
Withdrawn
Application number
GB1415462.9A
Other versions
GB201415462D0 (en
Inventor
Wen Tao Kuang
Robert Southall
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.)
Kosnic Lighting Ltd
Original Assignee
Kosnic Lighting Ltd
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 Kosnic Lighting Ltd filed Critical Kosnic Lighting Ltd
Priority to GB1415462.9A priority Critical patent/GB2530020A/en
Publication of GB201415462D0 publication Critical patent/GB201415462D0/en
Publication of GB2530020A publication Critical patent/GB2530020A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • 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

Abstract

Protective apparatus (101, 201) for use with a printed circuit board (103, 203) provides a pair of electrically non-conductive barrier wall elements (105, 106, 305, 306) arranged to extend towards each other over an electrical hazard of the PCB to leave a ventilation gap (G) that can act as a access inhibiting barrier. The pair of barrier wall elements (105, 106, 305, 306) may be provided by a pair of separate protective devices (See figures 1, 2) or a single protective device (See figure 3). The barrier may extend over LEDs carried on one side of a PCB and are thus preferably allow light to pass, and thus may be a transparent plastic material as in figure 1, 2. The barrier may cover the reverse non-LED side of the PCB as in figure 3. Figures 2 and 3 show a linear LED array PCB assembled in to a strip lamp format which could substitute for a fluorescent tube.

Description

PROTECTIVE APPARATUS FOR USE WITH A PRINTED CIRCUIT BOARD
Field of the Invention
The present invention relates to protective apparatus for use with a printed circuit board, in particular to protective apparatus for use with a lighting apparatus printed circuit board supporting a linear array of LEDs.
Backqround of the Invention Light emitting diode (LED) lighting apparatus comprising a printed circuit board supporting an array of LEDs is known. Customarily, lighting apparatus printed circuit boards have been operated using an electricity supply having a voltage equal to or less than 50V AC rms. However, it is increasingly found that lighting apparatus printed circuit boards are being operated using an electricity supply having a voltage greater than SOV AC rms. This higher voltage represents a is greater electrical hazard and a greater risk to life if a person comes into contact with electrically live componentry.
Summary of the Invention
According to a first aspect there is provided protective apparatus for use with a printed circuit board, said protective apparatus comprising a pair of electrically non-conductive barrier wall elements, and said protective apparatus positionable relative to said printed circuit board such that said pair of barrier wall elements extend towards each other over an electrical hazard of said printed circuit board and define a gap therebetween. whereby, said protective apparatus, when in use, provides ax-i access inhibiting barrier and a ventilation aperture over said electrical hazard of said printed circuit board.
In an embodiment, the protective apparatus is positionable relative to opposed edges of the printed circuit board.
In an application, the printed circuit board is a lighting apparatus printed circuit board. The lighting apparatus printed circuit board may support a linear array of LEDs. The protective apparatus, when in use, allows the emission of light from the linear array of LEDs of the printed circuit board.
In an embodiment, the protective apparatus comprises a pair of separate protective devices, each comprising one of the pair of barrier wall elements. The pair of protective devices may be configured to be positioned relative to opposed elongate edges of the printed circuit board such that the pair of barrier wall elements extend along and over the linear array of LEDs of the printed circuit board, and at least the barrier wall elements of the pair of protective devices are light transmitting. Each of the pair of separate protective devices may define a slot for receiving an elongate edge of the printed circuit board therein. The printed circuit board may be provided with an integral planar heat sink on the non-LED supporting side.
In an embodiment, the protective apparatus comprises a single protective device that comprises each of the pair of barrier wall elements and a light transmitting cover therebetween; and the single protective device is configured to be positioned relative to opposed elongate edges of the printed circuit board such that the pair of barrier wall elements extend over the non-LED supporting side of the printed circuit board, and the light transmitting cover extends over the linear array of LEDs of the printed circuit board. A generally U-shaped heat sink comprising a pair of sidewalls and a central connecting portion may be located on the non-LED supporting side of the printed circuit board, and the protective device may be configured to be fitted around the side walls of the generally U-shaped heat sink.
In an embodiment, the width of the gap between the pair of barrier wall elements when the protective apparatus is in use with the printed circuit board is sufficiently narrow to satisfy British Standard BS EN 61032:1998 / International Electrotechnical Commission Standard IEC 61032:1997 -Test Finger Probe (Articulated).
The material fabrication of the protective apparatus may comprise one of: an acwlic resin, a polycarbonate, nylon, polyvinyl chloride (PVC), po1ytetrafluoroethyene (PTFE), a ceramic.
The barrier wall elements may be inflexible or resiliently flexible.
According to a second aspect there is provided a printed circuit board supporting a linear array of liDs, in combination with protective apparatus according to the first aspect.
According to a second aspect there is provided lighting apparatus comprising a printed circuit board supporting a linear array of LEDs according to the second aspect.
The lighting apparatus may be configured to be operated from an electricity supply having a voltage equal to or greater than SOV AC rms. The lighting apparatus may be configured to be mains powered.
Different aspects and embodiments of the invention may be used separately or together.
Further particular and preferred aspects of the present invention are set out in the accompanying independent and dependent claims. Features of the dependent claims may be combined with the features of the independent claims as appropriate, and in combination other than those explicitly set out in the claims.
Brief DescriDtion of the Drawings The present invention will now be more particularly described, with reference to the accompanying drawings, in which: Figure 1 shows protective apparatus embodying the present invention, according to a first embodiment; and Figures 2 & 3 show protective apparatus embodying the present invention, according to a second embodiment.
Desciiption Example embodiments are described below in sufficient detail to enable those of ordinary skill in the art to embody and implement the systems and processes herein described. It is important to understand that embodiments can be provided in many alternate fonns and should not be construed as limited to the examples set forth herein.
The present invention provides protective apparatus that is usable with a printed circuit board. The protective apparatus comprises a pair of electrically non-conductive barrier wall elements, and is positionable relative to the printed circuit board such that the barrier wall elements extend towards each other over an electrical hazard of the printed circuit board and define a gap G therebetween.
The protective apparatus, when in use. provides an access inhibiting barrier and a ventilation aperture over the electrical hazard of the printed circuit board, and protects against damage to the printed circuit board.
Protective apparatus 101 according to a first embodiment is shown in Figure 1.
As will be described in further detail, the protective apparatus 101 is usable with LED lighting apparatus 102 comprising a printed circuit board 103 supporting a linear array of LEDs 104. In the scenario shown in Figure 1, the lighting apparatus printed circuit board 103 supports a single linear array of LEDs only.
The protective apparatus 101 comprises a pair of electrically non-conductive barrier wall elements 105, 106. The protective apparatus 101 is positionable relative to the lighting apparatus printed circuit board 103 such that the pair of barrier wall elements 105, 106 extend along and over the linear array of LEDs 104 of the printed circuit board 103 and define a gap G therebetween.
As illustrated in Figure 1, the protective apparatus 101 is positionable relative to opposed elongate edges 107, 108 of the printed circuit board 103 such that the pair of barrier wall elements 105, 106 extend, each towards the other, to the same side 109 of the printed circuit board 103 and define a gap G therebetween.
When the protective apparatus 101 is arranged relative to the printed circuit board 103 of the LED lighting apparatus 102 for use, the gap G extends linearly above and along the linear array of LEDs 104.
The protective apparatus 101, when in use, allows the emission of light from the linear array of LEDs 104 of the printed circuit board 103. The protective apparatus 101 is usable with the LED lighting apparatus 102 before, during and after installation of the LED lighting apparatus 102 for use.
The protective apparatus 101 serves to protect the printed circuit board 103 against damage during transportation. storage and/or handling. The protective apparatus 101 thus provides functionality when the printed circuit board 103 is not electrically connected or electrically live.
The protective apparatus 101 provides a safety shield to prevent a person contacting live parts of the printed circuit board 103 over which the barrier wall elements 105, 106 extend. At the same time, the protective apparatus 101 provides a gap G over the printed circuit board 103 that allows the circulation of air to provide cooling. The protective apparatus 101 thus provides functionality when the printed circuit board 103 is electrically connected or electrically live.
The barrier wall elements 105, 106 of protective apparatus 101 are light-transmitting. Thus, when the protective apparatus 101 is in use with the installed LED lighting apparatus 102, the emission of light from the linear array of LEDs 104 of the printed circuit board 103 is allowed through the barrier wall elements 105, 106. The emission of light from the linear array of LEDs 104 of the printed circuit board 103 is also allowed through the gap G. In this way, the protective apparatus 101 does not restrict the emission of light from the LEDs 104 of the printed circuit board 103 of the LED lighting apparatus 102.
When the protective apparatus 101 is in use with the installed LED lighting apparatus 102 as shown in Figure 1, the gap G between the barrier wall elements 105, 106 provides a ventilation aperture over the linear array of LEDs 104 through which air can flow. Air can enter through the gap G, circulate and exit through the gap G again unrestricted. The protective apparatus 101 thus provides for cooling of the LED lighting apparatus 102 when in use.
When the protective apparatus 101 is in use with the installed LED lighting apparatus 102 as shown in Figure 1, the gap G between the barrier wall elements 105, 106 is sufficiently narrow to prevent a person from inserting a finger through the gap G arid into contact with the LED supporting side 109 of the printed circuit board 103. In this specific example, the gap G between the barrier wall elements 105, 106 when arranged on the LED lighting apparatus 102 as is shown in Figure 1 is sufficiently narrow to satisfy British Standard BS EN 61032:1998 / International Electrotechnical Commission Standard IEC 61032:1997 -Test Finger Probe (Articulated) -testing accessibility to hazardous live parts.
In the embodiment shown in Figure 1, the protective apparatus 101 comprises a pair of separate protective devices 110, 111, each comprising one of the barrier walls 105, 106. In this example, the protective apparatus 101 comprises a pair of like separate protective devices 110, 111, which when arranged for use as shown in Figure 1, are in mirror-image.
In this embodiment, each of the pair of protective devices 110, 111 defines a slot 112, 113 respectively for receiving an elongate edge 107, 108 of the printed circuit board 103 the LED lighting apparatus 102 therein. In the illustrated example of this Figure, the printed circuit board 103 is provided with an integral planar heat sink 114 on the reverse side 115. The protective devices 110, 111 when positioned on the printed circuit board 103 of the LED lighting apparatus 102 thus extend under the reverse side 115 and over the LED supporting side 109.
According to the present embodiment, each of the protective devices 110, 111 presents a substantially planar lower surface 116, 117. Each of the barrier wall elements 105, 106 comprises an inclined portion 118, 119, inclined relative to the substantially planar lower surface 116, 117, and a terminal portion 120, 121.
In this embodiment, the terminal portions 120, 121 comprise a downwardly pointing lip 121, 123. Thus, when the protective devices 110, 111 are in the arrangement shown in Figure 1, the inclined portions 118, 119 extend upwardly and towards each other, and the gap G is defined between the facing terminal portions 120, 121 of the barrier wall ãlements 105, 106. Further, according to this embodiment, when the protective devices 110, 111 are positioned on the printed circuit board 103 as shown in Figure 1, a gap is also present between the lower surfaces 116, 117 thereof, to the reverse, non-LED supporting side 115.
In an embodiment, the barrier wall elements 105, 106 are rigid. In an embodiment, the configuration of the protective apparatus 101 is such that the barrier wall elements 105, 106 will resist bending in response to the application thereto of a downward or lateral force. It is to be appreciated however that in other embodiments, the barrier wall elements 105, 106 may have a degree of flexibility. The barrier wall elements 105, 106 may be inflexible or resiliently flexible. The configuration of the protective apparatus 101 may be such that the barrier wall elements 105, 106 may be arranged to pivot to a degree in response to the application of a force on the free ends thereof.
The protective apparatus 101 may be fabricated from any suitable material or combination of materials. The material fabrication of said protective apparatus comprises one of: an acrylic resin, a polycarbonate, nylon, polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), a ceramic.
The protective devices 110, 111 of the protective apparatus 101 may have any suitable profile and dimensions. The shape of the protective devices 110, 111 may include additional features, for example, channels 124, 125 for receiving wiring or other components.
It is to be appreciated that the separate protective devices 110, 111 may be manufactured as original separate components. Alternatively, the separate protective devices 110, 111 may be produced from an original unitary component that is subsequently cut to create multiple parts. For example, the separate protective devices 110, 111 may be created by cutting lengths of a strip, to form a plurality of parts with the same profile.
It is to be appreciated that although the protective devices 110, 111 of the protective apparatus 101 shown in Figure 1 are the same as each other, in other embodiments, there may be differences between the pair of protective devices 110, 111. Further, the protective apparatus 101 may comprise a plurality of pairs of protective devices. The protective devices within a pair may be the same as each other or different from each other and the plurality of pairs of protective devices may include pairs that are all the same, that are all different or some that are the same and some that are different.
Protective apparatus 201 according to a second embodiment is shown in Figures 2 and 3.
As shown, the protective apparatus 201 is usable with a linear LED lighting apparatus 202 comprising a printed circuit board 203 supporting a linear array of LEDs on an LED supporting side 204. A heat sink 205 is located on the reverse, non-LED supporting side 206 of the printed circuit board 203. Heat sink 205 is generally U-shaped and comprises a base portion 207, and a pair of side walls 208, 209 that extend from, and to the same side of, the base portion 207. The linear LED lighting apparatus 202 is also provided with a pair of electrical termination end caps 210, 211.
In the embodiment shown in Figures 2 and 3. the protective apparatus 201 comprises a single protective device 301 that comprises a pair of electrically non-conductive barrier wall elements 302, 303 and a light transmifting cover 304 therebetween.
As shown, the single protective device 301 is configured to be positioned relative to opposed elongate edges of the printed circuit board 302 such that the pair of barrier wall elements 302, 303 extend over the non-LED supporting side 302 of the printed circuit board 103, and the light transmitting cover 304 extends over is the LED supporting side 204 of the printed circuit board 203.
When the protective apparatus 201 is in use with the installed LED lighting apparatus 202, the emission of LED light from the printed circuit board 203 is allowed through the light transmitting cover 304. The protective apparatus 201 thus does not restrict the emission of light from the LEDs 204 of the printed circuit board 203 of the LED lighting apparatus 202.
In this embodiment, the protective device 301 is configured to be fitted around the side walls 208, 209 of the heat sink 205 located on the non-LED supporting side 206 of the printed circuit board 203 of the LED lighting apparatus 202. A gap G is defined between the barrier wall elements 302, 303 of the protective device 301, over the heat sink 205 side of the printed circuit board 203.
When located around the heat sink 205 and printed circuit board 203 as shown in Figures 2 and 3, the protective device 301 functions to prevent a person from coming into contact with electrically live components over which the barrier wall elements 302, 303 extend. The gap G between the barrier wall elements 302, 303 when the protective apparatus 201 is fitted as shown in Figures 2 arid 3, is sufficiently narrow to prevent a person from inserting a finger through the gap G and into contact with the heat sink 205 on the printed circuit board 203.
In addition, the light transmitting cover 304 that extends over the LED supporting side 204 of the printed circuit board 203 when the protective apparatus 201 is arranged for use also prevents a person from coming into contact with electrically live components over which the light transmitting cover 304 extends. Further, the light transmitting cover 304 that extends over the LED supporting side 204 of the printed circuit board 203 advantageously prevents the ingress of dust or other particles that may have be detrimental to the operation of the LEDs and/or the quality of emitted LED light.
The gap G between the barrier wall elements 302, 303 when the protective apparatus 201 is fitted as shown in Figures 2 and 3. also provides a ventilation aperture over the heat sink 205 of the non-LED supporting side 206 of the printed circuit board 203. Air can enter through the gap G, circulate and exit through the gap G again unrestricted. The protective apparatus 201 thus provides for cooling of the LED lighting apparatus 202 when in use.
Further, the protective device 301 when fitted to the LED lighting apparatus 202 as shown, serves to prevent damage during handling, transportation and/or storage.
The protective apparatus 201 of Figures 2 and 3 therefore provides the same functionality as the protective apparatus 101 of Figure 1 of inhibiting access to an electrical hazard, providing a ventilation aperture over the electrical hazard to which access is inhibiting and preventing damage.
In this embodiment, each of the barrier wall elements 302, 303 of the protective device 301 comprises an inclined portion 305, 306, the inclined portions 305, 306 extending inwardly towards each other, and a terminal portion 307, 308.
Each of the terminal portions 307, 308 comprises a downwardly pointing lip 309, 310. In addition, in this embodiment, each of the terminal portions 307, 308 further comprises a location lug 311, 312. When the protective device 301 is located relative to the printed circuit board 203 and around the heat sink 205 as shown in Figures 2 and 3, the location lugs 311, 312 locate the barrier wall elements 302, 303 around the legs 208, 209 of the heat sink 205. In the shown arrangement, the gap G is disposed between the legs 208, 209 of the heat sink 205.
Features of the electrical termination end caps 210, 211 of the LED lighting apparatus 202 are shown in Figure 3. Electrical termination end cap 210 is shown located around the protective device 301. The electrical termination end cap 210 comprises an outer cover 313 provided with a pair of inwardly extending locating hooks 314, 315. The locating hooks 312, 313 are configured to engage with the downwardly pointing lips 309, 310 of the terminal portions 307, 308 of the barrier wall elements 302, 303 of the protective device 301, to secure the electrical termination end cap 210 onto the protective device 301. Electrical termination end cap 211 is provided with a similar arrangement for securement is around the protective device 301. It is to be appreciated that the gap G of the protective device 301 is open along the length of the protective device, between the electrical termination end caps 210, 211 located thereon.
The protective apparatus 101, 201 provided by the present invention thus provides beneficial protection for a printed circuit board, in particular to an LED supporting printed circuit board of a linear LED lighting apparatus, to protect against humans coming into contact with live components. The protective apparatus 101, 201 thus acts as a safety device to prevent electrocution. The protective apparatus 101, 201 also functions to protect against damage to the printed circuit board and components thereon or associated therewith. The protective apparatus 101, 201 further includes a ventilation assisting feature, to improve the operational life of the printed circuit board with which the protective apparatus 101, 201 is used.
The present invention also provides LED lighting apparatus comprising a printed circuit board supporting a linear array of LEDs, in combination with the protective apparatus. In an embodiment, the LED lighting apparatus is configured to be mains powered. In an embodiment, the LED lighting apparatus is configured to be operated from an electricity supply having a voltage equal to or greater than 50V AC rms.
Although illustrative embodiments of the invention have been disclosed in detail is herein, with reference to the accompanying drawings, it is understood that the invention is not limited to the precise embodiments sho and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope of the invention as defined by the appended claims and their equivalents.

Claims (22)

  1. Claims 1. Protective apparatus for use with a printed circuit board, said protective apparatus comprising a pair of dlectrically non-conductive barrier wall elements, and said protective apparatus positionable re'ative to said printed circuit board such that said pair of barrier wall elements extend towards each other over an electrical hazard of said printed circuit board and define a gap therebetween, whereby, said protective apparatus, when in use, provides an access inhibiting barrier and a ventilation aperture over said electrical hazard of said printed circuit board.
  2. 2. Protective apparatus as claimed in claim 1, wherein said protective apparatus is positionable relative to opposed edges of said printed circuit board.
  3. 3. Protective apparatus as claimed in claim 1 or claim 2, wherein said printed circuit board is a lighting apparatus printed circuit board.
  4. 4. Protective apparatus as claimed in claim 3, wherein said lighting apparatus printed circuit board supports a linear array of LEDs.
  5. 5. Protective apparatus as claimed in any claim 4, wherein said protective apparatus, when in use, allows the emission of light from said linear array of LEDs of said printed circuit board.
  6. 6. Protective apparatus as claimed in claim 5, wherein said protective apparatus comprises a pair of separate protective devices, each comprising one of said pair of barrier wall elements.
  7. 7. Protective apparatus as claimed in claim 6, wherein said pair of protective devices are configured to be positioned relative to opposed elongate edges of said printed circuit board such that said pair of barrier wall elements extend along and over the linear array of LEDs of the printed circuit board, and at least said barrier wall elements of said pair of protective devices are light transmitting.
  8. 8. Protective apparatus as claimed in claim 6 or claim 7, wherein each of said pair of separate protective devices defines a slot for receiving an elongate edge of said printed circuit board therein.
  9. 9. Protective apparatus as claimed in any of claims 4 to 8, wherein the printed circuit board is provided with an integral planar heat sink on the non-LED supporting side.
  10. 10. Protective apparatus as claimed in claim 5. wherein said protective apparatus comprises a single protective device that comprises each of said pair of barrier wall elements and a light transmitting cover therebetween; and said single protective device is configured to be positioned relative to opposed elongate edges of said printed circuit board such that said pair of barrier wall elements extend over the non-LED supporting side of the printed circuit board, and the light transmitting cover extends over the linear array of LEDs of the printed circuit board.
  11. 11. Protective apparatus as claimed in claim 6 or claim 7, wherein a generally U-shaped heat sink comprising a pair of sidewails and a central connecting portion is located on the non-LED supporting side of said printed circuit board, and said protective device is configured to be fitted around the side walls of said generally U-shaped heat sink.
  12. 12. Protective apparatus as claimed in any preceding claim, wherein the width of the gap between said pair of barrier wall elements when said protective apparatus is in use with said printed circuit board is sufficiently narrow to satisfy British Standard BS EN 61032:1998 / International Electrotechnical Commission Standard IEC 61032:1997 -Test Finger Probe (Articulated).
  13. 13. Protective apparatus as claimed in any preceding claim, wherein the material fabrication of said protective apparatus comprises one of: an acrylic resin, a polycarbonate, nylon, polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), a ceramic.
  14. 14. Protective apparatus as claimed in any preceding daim, wherein said barrier wall elements are one of: inflexible, resiliently flexible.
  15. 15. A printed circuit board supporting a linear array of LEDs. in combination with protective apparatus as claimed in any preceding claim.
  16. 16. Lighting apparatus comprising a printed circuit board supporting a linear array of LEDs as claimed in claim 15.is
  17. 17. Lighting apparatus as claimed in claim 16, wherein said lighting apparatus is configured to be operated from an electricity supply having a voltage equal to or greater than 50V AC rms.
  18. 18. Lighting apparatus as claimed in claim 16 or claim 17, wherein said lighting apparatus is configured to be mains powered.
  19. 19. Protective apparatus for use with a printed circuit board, substantially as described herein with reference to the accompanying drawings.
  20. 20. A printed circuit board, in combination with protective apparatus, substantially as described herein with reference to the accompanying drawings.
  21. 21. A printed circuit board supporting a linear array of LEDs. in combination with protective apparatus, substantially as described herein with reference to the accompanying drawings.
  22. 22. Lighting apparatus comprising a printed circuit board supporting a linear array of LEDs, in combination with protective apparatus, substantially as described herein with reference to the accompanying drawings.
GB1415462.9A 2014-09-02 2014-09-02 Protective apparatus for use with a printed circuit board Withdrawn GB2530020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1415462.9A GB2530020A (en) 2014-09-02 2014-09-02 Protective apparatus for use with a printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1415462.9A GB2530020A (en) 2014-09-02 2014-09-02 Protective apparatus for use with a printed circuit board

Publications (2)

Publication Number Publication Date
GB201415462D0 GB201415462D0 (en) 2014-10-15
GB2530020A true GB2530020A (en) 2016-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1415462.9A Withdrawn GB2530020A (en) 2014-09-02 2014-09-02 Protective apparatus for use with a printed circuit board

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110267814A1 (en) * 2010-05-03 2011-11-03 Moon Kyung-Mi Illumination apparatus employing light-emitting device package
CN202327760U (en) * 2011-11-30 2012-07-11 王飞 Light emitting diode (LED) lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110267814A1 (en) * 2010-05-03 2011-11-03 Moon Kyung-Mi Illumination apparatus employing light-emitting device package
CN202327760U (en) * 2011-11-30 2012-07-11 王飞 Light emitting diode (LED) lamp

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Publication number Publication date
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