The present description relates generally to electrical connectors and more particularly to electrical connectors for use with printed circuit boards.
Connectors, and more particularly, connectors capable of electrically connecting printed circuit boards (“PCBs”) to one another are generally known in the art. For example, U.S. Pat. No. 7,462,036, entitled “Printed Circuit Board Connector for Back Light Unit and Chassis Using the Same,” describes a connector for electrically connecting PCBs on which are mounted a plurality of light emitting diodes (“LEDs”). The described connector includes a horizontal supporter, a vertical supporter that divides the horizontal supporter into first and second areas, and at least one connecting terminal formed on the horizontal supporter which is partially exposed in each of the first and second areas of the horizontal supporter. The connecting terminal functions to electrically connect PCBs each having one end placed on the first and second areas, respectively.
U.S. Pat. No. 7,892,022, entitled “Jumper Connector for a Lighting Assembly,” also describes a connector for electrically connecting PCBs on which are mounted a plurality of LEDs. The described connector includes a connector body having a mating surface configured to engage more than one PCB. The connector body is configured to be secured to a substrate by a fastener. The connector body additionally includes a conductor and the conductor is configured to be electrically connected to the PCBs during the same step in which the connector body is secured to the substrate. In this manner, the connector body engages the outer surface of the PCBs and simultaneously forces the inner surface of the PCBs into thermal contact with the substrate.
U.S. Published Application No. 2011/0207372, entitled “Electrical Connector With Push-in Termination,” describes an edge connector having a first portion adapted to receive an edge of a PCB and a second portion adapted to receive a least one conductor of a stripped end of a wire. The first portion includes at least one terminal assembly and the terminal assembly includes a retention member adapted to engage the conductor via a push-in wire termination. The second portion includes include a terminal portion adapted to releasably engage a contact on a PCB.
U.S. Pat. No. 8,025,507, entitled “Connector,” describes a connector for a printed circuit board having a guide hole and a locking hole to receive the connector. The connector includes a housing which is mounted on the printed circuit board and including a guide inserted into the guide hole and a locking unit inserted into the locking hole. Each of the guide and locking unit protrude from the bottom of the housing. In one embodiment, the guide slides into the guide hole and locks into place over the PCB board. In another embodiment, the connector snaps into the PCB board. In either instance, in order to change the PCB board from the support structure underlying the connector, the connector itself must be removed from the PCB and the support structure in order to access the PCB board, thus presenting an oftentimes labor-intensive task.
While the connectors described in each of these publications, which are incorporated herein by reference in their entirety, generally work for their intended purpose, the following describes improved connectors for use with PCBs.
Described hereinafter are improved connectors for use with PCBs.
More particularly, a connector for electrically connecting a conductor to a first printed circuit board (PCB). A housing is adapted to be moveable relative to a mounting structure to allow the mounting of the PCB to the surface and moveable over the PCB to contact pads located on the top side of the PCB.
Additionally described is a connector for electrically coupling a first PCB with a second PCB is described wherein the connector includes a housing moveably coupled to a base. The housing adapted to provide an electrical connection to each of the first and second PCBs having exposed contact pads formed on a top side of the respective PCBs. While at least one example connector described herein includes a housing moveable relative to a base attached to a mounting structure, it will be appreciated by one of ordinary skill in the art that the connector may simply include a housing directly coupleable to the mounting structure itself such that the housing is moveable relative to the mounted PCB.
Also described is a connector for electrically connecting a first PCB with a second PCB wherein the connector includes a housing and at least one connecting terminal carried by the housing having at least partially exposed opposed ends each of which electrically engages a contact pad formed on a top side of the respective PCBs and wherein the connector is adapted to allow the edges of the PCBs to be placed into direct contact.
Yet further is described a connector for electrically connecting a first PCB with a second PCB wherein the connector includes a housing and at least one connecting terminal carried by the housing having at least partially exposed opposed ends each of which electrically engages a contact pad formed on a top side of the respective PCBs and wherein the connecting terminal is arranged to accept a conductor and to thereby electrically couple the conductor to the first and second PCBs.
Still further is disclosed another example bridging connector for electrically connecting a first PCB with a second PCB wherein the connector includes a non-conductive housing and at least one connecting terminal carried by the housing having opposed ends each of which are electrically engageable with a contact pad, or other contact terminal, formed in a top side of the respective PCBs. A resilient holding element, such as for example a spring clip, is engageable with at least one of the PCBs and/or a surface supporting the PCB(s) to releasably retain the housing and the terminals in the correct location.
Likewise disclosed is another example end connector for electrically connecting a PCB to an external device, such as for instance a power supply. The described example end connector includes a non-conductive housing and at least one connecting terminal carried by the housing having a first end electrically engageable with a contact pad, or other contact terminal, formed in the top side of the PCB, and a second end for engaging and retaining an electrical conductor, such as for example a wire. In one example, the second end may include a push-in type terminal for semi-permanently retaining an inserted wire therein. The housing of the end connector may be similarly retained against the PCB by a resilient holding element, such as, for example a spring clip, engageable with at least one of the PCB and/or a surface supporting the PCB.
While the foregoing provides a general description of the subject assemblies for holding a source of LED light and some advantages thereof, a better understanding of the objects, advantages, features, properties, and relationships of the subject assemblies will be obtained from the following detailed description and accompanying drawings which set forth illustrative embodiments and which are indicative of the various ways in which the principles of the invention may be employed.
The following description of example methods and apparatus is not intended to limit the scope of the description to the precise form or forms detailed herein. Instead the following description is intended to be illustrative so that others may follow its teachings.
By way of non-limiting example, the improved connectors described herein provide a low profile to reduce or eliminate shadowing of light from any LEDs mounted on the PCBs, allow PCBs to be placed adjacent to one another without breaks for continuous lighting, allow for easy replacement of PCBs, allow for vertical replacement of PCBs, eliminate the need to solder together PCBs and connectors, require fewer connectors than traditional devices, provide for near-continuous lighting with fewer dark spots due because connectors are not required at the ends of the PCBs, etc.
It will also be appreciated that single sided PCBs are oftentimes less expensive to manufacture then PCBs having components on two sides, and typically the bottom side of the PCB is placed against a supporting substrate, such as sheet metal. Thus, the presently described connector provides a device that takes advantage of the preferable single-sided PCB arrangement.
Turning now to the Figures, wherein like elements are referenced using common identifiers, illustrated are various connectors for use with printed circuit boards (“PCBs”). By way of non-limiting example, a plurality of PCBs 10 may have mounted thereon one or more light emitting diodes (“LEDs”) 11 which LEDs are, in turn, electrically coupled to one or more contact pads 12 formed on a top side of the PCBs 10 as illustrated in
For providing an electrical connection to the PCB 10 as illustrated in
For example, as illustrated, the base 19 may be mounted to the mounting structure 13, such as for example, a heat sink, with the PCBs 10 then being mounted to the mounting structure 13 such that an end 24 the base 19 is essentially flush with a side of each of the PCBs 10 proximate the contact pads 12 as particularly shown in
The example housing 18, defines a cavity 30 for housing the connecting terminals 20. The connecting terminals 20 have elasticity to thereby facilitate engagement with the contact pads 12 of the PCBs 10. More particularly, a first end 20A of the connecting terminal 20 includes a flexible push-in type connector region to allow insertion and retention of an electrical conductor, such as for example, a wire, in the housing 18. As illustrated in
For providing a slidable interface between the housing 18 and the base 19, the example base 19 includes a pair of opposing channels 26 formed in either side of the base 19 for slidably capturing a lip 28 formed on opposite sides of the exterior surface of the housing 18. As will be described, the example housing 18 is coupled to the base 19 such that the housing 18 cannot be removed from the base 19 under normal operating conditions. More particularly, while the example base 19 and housing 18 are separately formed, once coupled, the two parts cannot be easily separated. It will be appreciated, however, that in other examples, the housing 18 may be removable from the base 19. Still further, it will be appreciated that the base 19 and the housing 18 may be integrally formed such that mating of the two parts is not necessary.
In addition to the example lip 28, the example housing 18 includes at least one detent 34 that may correspond to a cooperating notches and/or cam surface 36 formed proximate to the channels 26 to catch and/or temporarily lock the movement of the housing 18 relative to the base 19, and/or to provide the user with physical, visual, and/or audible cues regarding the proper seating of the housing 18 relative to the base 19.
Still further, the example base 19 may include a ramp 38 or other suitable surface to assist in moving the end 20B of the connecting terminal 20 over the edge of the PCB 10 and into contact with the corresponding contact pad 12 when the housing 18 is slidably moved over the base 19 towards the PCB 10. To assist in directing and/or controlling the sliding motion of the housing 18 relative to the base 19, the connector 19 may also include a channel 40 formed in the base 19 and sized to accept an extending tab 42 protruding from the housing 18 therein.
Turning now to
The housing 18′ is similarly slidably mountable to an elongated example base 19′ that is connectable to the mounting structure 13 in a similar fashion as the connector 16. For instance, the example base 19′ includes apertures 22 for mounting the base 19′ to the mounting structure 13 supporting the PCBs 10, wherein the apertures 22 are sized to accept fasteners 23 (see
Turning now to
In this instance, the example housing 18″ includes wire guide apertures 32″ formed in the side of the housing 18″. Opposite ends of the connecting terminals 200, 201 are arranged to engage the contact pads 12 provided on the top side of a PCB 10 and to electrically couple two PCBs 10 together, while connecting terminals 310, 312 include a flexible push-in type connector region to allow insertion and retention of an electrical conductor, such as for example, a wire, in the housing 18″. In this fashion, the connector 16″ is capable of both bridging two PCBs 10 and providing an electrical connection thereto.
As with the previous examples, the example housing 18″ is slidably mountable to an elongated example base 19′ that is connectable to the mounting structure 13 in a similar fashion as the connector 16. For instance, the example base 19′ includes apertures 22 for mounting the base 19′ to the mounting structure 13 supporting the PCBs 10, wherein the apertures 22 are sized to accept fasteners 23 (see
Referring to
As shown in operation, the connector 116 and the PCBs 10 are fastened to the mounting structure 13 and the housing 18′ is pivotally rotated about the hinge 1000 to contact the pads 12 on the top surface of the PCBs 10. The housing 18′ may be releasably held in contact with the pads 12 by “snap-fit” and/or other suitable fitting mechanism between the housing 18′ and the base 19′. Still further, while the present pivotal connector 116 is illustrated as being rotatable after installation of the PCB 10, it will be readily apparent that the connector 116 may be rotated and “locked” (e.g., closed) prior to installation of the connector 116 on the mounting structure 13. In other words, the closed connector 116 may be installed directly over the already mounted PCB 10. Still further, the connector 116 may be closed an installed on the mounting structure 13 prior to installation of the PCB 10, thus requiring the PCB 10 to have to slide under the closed connector 116 for installation.
In the example of
In yet another example, for providing an electrical connection to and between a first and second PCB 10 as illustrated in
The example end connector 1602, meanwhile, similarly includes a housing 1718 formed using an electrically insulating material such as, for example, plastic or the like. The example housing 1718, however, carries one of more push-in type connector terminals 1720 (see
The example connecting terminals 1620, 1720 each have elasticity to facilitate engagement with the contact pads 12 of the PCBs 10. More particularly, both ends of the contacting terminals 1620 are exposed inside and/or outside of the housing 1618 and are arranged over an open side, a hole, a slot, a recess, opening, and/or the like formed in the housing 1618 so that the end of the connecting terminal 1620 is positionable generally above and in contact with the PCBs 10 and more specifically, with the contact pads 12. Meanwhile, the first end 1720a of the connecting terminal 1720 includes a flexible push-in type connector region to allow insertion and retention of an electrical conductor, such as for example, a wire, in the housing 1718. As best illustrated in
As illustrated in
As will be appreciated, to remove the connectors 1600, 1602 from the mounting structure 13, the spring clip 1625 may be moved to release the tab 1627 from engagement with the underside of the mounting structure 13 and thus allow for the connector 1600, 1602 to be pivoted away from the aperture 1702 and thus be freely removed from the surface 13.
Turning now to
During installation of the bridge connector 1600′ and the end connector 1602′, the entire connector 1600′ and 1602′ may be rotated, pivoted, slid, pushed, etc., such that each of the spring clips 2225 engage the apertures 1702 defined in the mounting structure on opposite sides of the PCB 10. More specifically, as with the previously described holding element, 1621, each of the spring clips 2225 includes a tab 2227 adapted to engage the underside of the mounting structure 13 and thus retain the spring clips 2225 within each of the apertures 1702. Still further, As with the previously described example, the example resilient holding element 2221 includes a biasing shape that includes a bowed portion 2221c that when the connectors 1600′, 1602′ are installed against the PCB 10, the bowed portion tends to bias the terminals 1620, 1720 into direct electrical contact with the contact pads 12. Of course, it will be understood by one of ordinary skill in the art that the biasing may be any suitable shape, clamp, arrangement, etc. to ensure contact between the connectors 1600, 1602 and the contact pads 12.
As will be appreciated, to remove the connector 1600′, 1602′ from the mounting structure 13, either and/or both of the spring clips 2225 may be moved to release one or both of the tabs 2227 from engagement with the underside of the mounting structure 13 and thus allow for the connector 1600′, 1602′ to be lifted away from the surface 13.
Referring now to FIGS. 28 and 29A-29C, there is illustrated yet another example bridge connector 2800 for providing an electrical connection to and/or between a first and second PCB 10. In this instance, the example bridge connector 2800 includes a housing 2818 formed using an electrically insulating material, such as plastic. The housing 2818 carries one or more connecting terminals 2820, which in this example are the same as terminals 1620. As such, in this example, opposite ends of the connecting terminals 2820 are arranged to engage the contact pads 12 provided on the top side of the two PCBs 10 as shown in
In this example, the resilient holding element 2821 includes a first end 2821a defining a flange 2823 and a second end 2821b defining a second flange 2825. Thus, during installation of the bridge connector 2800, the connector 2800 may be placed and moved towards the mounting structure 13 such that the flanges 2823, 2825 flex outward and engage in slots, lips, channels, apertures, etc. 2900 formed in the mounting structure 13. As illustrated, the resilient holding element 2821 includes a biasing shape that includes a bowed portion 2821c that when the connector 2800 is installed against the PCB 10, the bowed portion tends to bias the terminal 2820 into direct electrical contact with the contact pads 12. Alternatively, the holding element 2800 may be utilized separately from the housing 2818 to hold and/or otherwise support the PCB 10 directly as shown in
In yet another example illustrated in
In this instance, however, the example housing 3018 is releasably mountable to the mounting structure 13 supporting the PCBs 10, or to the PCBs 10 directly by a resilient holding element 3050, which is a resilient tab for releasably coupling to an aperture formed in the PCB 10 or the mounting structure 13.
Specifically, in this example, the resilient holding element 3050 includes a first end 3050a integrally formed with the housing 3050 and a second end 3050b defined a cammed conical shaped tab 3062 having a lip 3064 arranged to engage the underside of the mounting structure 13 (see
Although certain example methods and apparatus have been described herein, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all methods, apparatus, and articles of manufacture fairly falling within the scope of the appended claims either literally or under the doctrine of equivalents.
This application is a non-provisional application claiming priority to U.S. Provisional Patent Application No. 61/662,676, filed Jun. 21, 2012, and to U.S. Provisional Patent Application No. 61/831,340, filed Jun. 5, 2013, both entitled “Electrical Connectors for Use with Printed Circuit Boards,” the contents of which are incorporated herein by reference in their entirety.
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Number | Date | Country | |
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20140154892 A1 | Jun 2014 | US |
Number | Date | Country | |
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61662676 | Jun 2012 | US | |
61831340 | Jun 2013 | US |