CN112217045B - Power connector system for circuit card assembly - Google Patents
Power connector system for circuit card assembly Download PDFInfo
- Publication number
- CN112217045B CN112217045B CN202010650207.9A CN202010650207A CN112217045B CN 112217045 B CN112217045 B CN 112217045B CN 202010650207 A CN202010650207 A CN 202010650207A CN 112217045 B CN112217045 B CN 112217045B
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- Prior art keywords
- board
- cable
- power connector
- circuit card
- contact
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- 230000013011 mating Effects 0.000 claims description 46
- 230000000717 retained effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 17
- 229910000679 solder Inorganic materials 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A power connector system (100) for a circuit card assembly (102) includes a board power connector (200) and a cable power connector (300) coupled to the board power connector. The board power connector includes a board housing (210) having cavities (232) that hold power contacts and signal contact channels (242) on a bottom (222) that hold signal contacts. The cable power connector has a cable housing (310) with a contact pocket (330) holding cable power contacts (312) terminated to a power cable (302). The contact bin and the cable power contact are received in a cavity of the board housing to mate the cable power contact with the board power contact (212). The cable housing includes a platform below the contact bay to hold cable signal contacts (314) outside the contact bay at a bottom (322) of the cable housing to mate with board signal contacts (214) when the cable power connector is mated with the board power connector.
Description
Technical Field
The subject matter herein relates generally to power connector systems for circuit card assemblies.
Background
The circuit card assembly has components that require electrical power to operate. Typically, power is delivered to the circuit card across an interface with a card edge connector of the receiving circuit card. However, providing power contacts at the interface increases the number of contacts required at the interface. When using standard interfaces, the number of contacts may not be able to be increased to accommodate the greater power requirements. Furthermore, the contact pads are typically small and thus have a low current capacity. To overcome the problems of conventional circuit card assemblies, some circuit card assemblies provide a separate power connector mounted to the circuit card that mates with a cable power connector to power the circuit card. Signaling needs to be provided through the cable power connector. However, known cable power connectors having signal contacts have increased profiles and footprints (footprints). The addition of signal contacts increases the width and/or height of the cable connector and board mount connector, thereby reducing airflow through the circuit card assembly and reducing the footprint on the circuit card for other electrical components.
There remains a need for a low profile, small footprint power connector system for a circuit card assembly having signal contacts and power contacts.
Disclosure of Invention
In accordance with the present invention, a power connector system for a circuit card assembly is provided. The power connector system includes a board power connector having a board housing including a top, a bottom, a front and a rear. The panel housing includes a cavity open at a front. The bottom portion is configured to mount to a circuit card of the circuit card assembly. The board housing includes signal contact channels on a bottom. The board power connector includes board power contacts received in corresponding cavities. Each board power contact includes a mating end and a terminating end. The terminating ends of the board power contacts are configured to terminate to a circuit card. The board power connector includes board signal contacts received in corresponding signal contact channels. Each board signal contact includes a mating end and a terminating end. The terminating ends of the signal contact channels are configured to terminate to a circuit card. The mating ends of the board signal contacts are exposed along the bottom of the board housing. The power connector system includes a cable power connector configured to mate to a board power connector. The cable power connector has a cable housing including a top, a bottom, a front and a rear. The cable power connector includes a power cable extending from a rear portion. The cable housing includes a contact bin at a front portion. The cable power connector includes cable power contacts retained in corresponding contact receptacles. The cable power contacts terminate to corresponding power cables. The contact bin and the cable power contact are received in the cavity of the board housing such that the cable power contact mates with the board power contact. The cable power connector includes cable signal contacts disposed at the bottom of the cable housing outside of the contact pocket to mate with the board signal contacts when the cable power connector is mated with the board power connector.
In accordance with the present invention, a power connector system for a circuit card assembly is provided. The power connector system includes a board power connector configured to be mounted to a circuit card of the circuit card assembly and configured to mate with a cable power connector. The board power connector includes a board housing including a top, a bottom, a front and a rear. The panel housing includes a cavity open at a front. The bottom portion is configured to mount to a circuit card of the circuit card assembly. The board housing includes signal contact channels on a bottom. The board power contacts are received in the corresponding cavities. Each board power contact includes a mating end and a terminating end. The terminating ends of the board power contacts are configured to terminate to a circuit card. The mating ends of the board power contacts are configured to mate to cable power contacts of a power connector. The board signal contacts are received in corresponding signal contact channels. Each board signal contact includes a mating end and a terminating end. The terminating ends of the signal contact channels are configured to terminate to a circuit card. The mating ends of the board signal contacts are exposed along the bottom of the board housing to mate with the cable signal contacts of the cable power connector.
Drawings
Fig. 1 is a top perspective view of a power connector system for a circuit card assembly according to an exemplary embodiment.
Fig. 2 is a bottom perspective view of a power connector system for a circuit card assembly according to an exemplary embodiment.
Fig. 3 is a top view of a power connector system mounted to a circuit card assembly according to an example embodiment.
Fig. 4 is an end view of a power connector system mounted to a circuit card assembly according to an exemplary embodiment.
Fig. 5 is a bottom perspective view of a circuit card assembly showing a board power connector of the power connector system mounted to a circuit card, according to an example embodiment.
Fig. 6 is a top perspective view of a portion of a circuit card assembly according to an example embodiment.
Fig. 7 is a top perspective view of a board power connector according to an exemplary embodiment.
Fig. 8 is a bottom perspective view of a board power connector according to an exemplary embodiment.
Fig. 9 is a front, top perspective view of a cable power connector of a power connector system according to an exemplary embodiment.
Fig. 10 is a rear, bottom perspective view of a cable power connector according to an exemplary embodiment.
Fig. 11 is a side view of a cable power connector according to an exemplary embodiment.
Detailed Description
Fig. 1 is a top perspective view of a power connector system 100 for a circuit card assembly 102 according to an example embodiment. Fig. 2 is a bottom perspective view of the power connector system 100 for the circuit card assembly 102 according to an exemplary embodiment. The power connector system 100 is a cable-to-board power delivery system. The power connector system 100 provides power to the circuit card assembly 102. In the illustrated embodiment, the circuit card assembly 102 is an external component interconnect is a peripheral component interconnect express (PCIe) assembly; however, in alternative embodiments, the circuit card assembly 102 may be another type of electrical assembly.
The circuit card assembly 102 includes a circuit card 110 having a top surface 112 and a bottom surface 114. The circuit card 110 is a printed circuit board having circuitry defined by traces, vias, pads, etc. of the circuit card 110. The circuit card assembly 102 includes one or more electrical components 116, such as a processor, memory, etc., mounted to the circuit card 110. In an exemplary embodiment, the circuit card 110 includes a lip 120 configured to be received in a card slot of a card edge connector (not shown). The circuit card 110 includes contact pads 122 at the card edge 120 that are configured to electrically connect to a card edge connector. The circuit card 110 includes guide slots 124 to guide the mating with the card edge connector. The circuit card 110 includes latching features 126 for latchably coupling the circuit card 110 to the card edge connector.
The circuit card 110 includes a mounting area 130, for example along a side edge 132 of the circuit card 110. The power connector system 100 is electrically connected to the circuit card 110 at a mounting area. The power connector system 100 provides power to the circuit card assembly 102. In an exemplary embodiment, the circuit card 110 includes a mounting opening 134 for mounting the connector of the power connector system 100 to the circuit card 110, for example, using mounting bosses, fasteners, or other securing features. The circuit card 110 includes power conductors 136 configured to electrically connect to power contacts of the power connector and signal conductors 138 configured to electrically connect to signal contacts of the power connector. In the illustrated embodiment, the power conductors 136 and the signal conductors 138 include plated through holes through the circuit card 110. Other types of conductors may be used in alternative embodiments, such as pads or contacts terminating to the circuit card 110.
In an exemplary embodiment, the circuit card 110 includes a window 140 in the mounting area 130. Window 140 receives a portion of an electrical connector of power connector system 100. Window 140 provides space to receive an electrical connector to mate with circuit card assembly 102 and/or an electrical connector mounted to circuit card 110. In the illustrated embodiment, the window 140 is a notch formed at the edge 132.
The power connector system 100 includes a board power connector 200 and a cable power connector 300. The cable power connector 300 includes a power cable 302 and a signal cable 304 configured to electrically connect to the board power connector 200. The cable power connector 300 includes a latch 306 for securing the cable power connector 300 to the board power connector 200. The latch 306 includes a tether 308 for releasing the latch 306. The board power connector 200 is mounted to the circuit card 110 at the mounting area 130. In an exemplary embodiment, the board power connector 200 is a right angle connector having a mating end configured to mate to the cable power connector 300 and a mounting end perpendicular to the mating end configured to mount to the circuit card 110. Other types of connectors may be used in alternative embodiments. In the exemplary embodiment, board power connector 200 and cable power connector 300 have low profiles to increase airflow and more closely encapsulate electrical components.
Fig. 3 is a top view of the power connector system 100 mounted to the circuit card assembly 102. Fig. 4 is an end view of the power connector system 100 mounted to the circuit card assembly 102. Fig. 3 and 4 illustrate the circuit card 110 coupled to the card edge connector 150. Having the power connector system 100 power the circuit card assembly 102 reduces the need for power transfer across the interface between the card edge connector 150 and the circuit card 110. Thus, more power can be transferred to the circuit card 110 than if only the card edge connector was used to transfer power to the circuit card 110. Alternatively, the power connector system 100 may completely eliminate the need for power transfer across the interface between the card edge connector 150 and the circuit card 110.
Fig. 5 is a bottom perspective view of circuit card assembly 102 showing board power connector 200 mounted to circuit card 110, according to an example embodiment. Fig. 6 is a top perspective view of a portion of circuit card assembly 102 with board power connector 200 removed for clarity. The circuit card 110 includes power conductors 136 in signal conductors 138 at the mounting region 130 along the side edges 132. The signal conductors 138 enhance the operation of the power connector system 100 by providing signal lines and signaling between the board power connector 200 and the circuit card 110. The signal lines may be used to encode to determine the type of cable power connector and power cable coupled to the board power connector 200. Alternatively, signaling may be used to control the flow of power through the power connector system 100. For example, the signal conductors 138 may be used as part of a sensing circuit for controlling the supply of power to the circuit card assembly 102. The signal conductors 138 may be used for data communication between one or more components of the circuit card assembly 102 and a remote device or component (such as, but not limited to, a power supply).
The window 140 is disposed within the mounting region 130 such that the board power connector 200 may be mounted to the circuit card 110 proximate to the window 140. In an exemplary embodiment, the board power connector 200 covers the window 140 such that the signal contacts of the board power connector 200 are exposed through the window 140. The mounting openings 134 in the mounting region 130 receive fasteners or bosses for securing the board power connector 200 to the circuit card 110. In the illustrated embodiment, the power conductors 136 are defined by through holes through the circuit card 110 that receive power contacts of the board power connector 200. In the illustrated embodiment, the signal conductors 138 are defined by through-holes through the circuit card 110 that receive signal contacts of the board power connector 200. In an exemplary embodiment, the signal conductors 138 are contained within the footprint of the board power connector 200. For example, signal conductor 138 is located between power conductor 136 and edge 132. Thus, the signal conductors 138 do not increase the overall footprint of the mounting area 130. The signal conductors 138 are contained within an area that has been dedicated to the board power connector 200, so adding power lines to the power connector system 100 and the circuit card assembly 102 does not increase the overall footprint or size of the mounting area 130. In various embodiments, the window 140 in the circuit card 110 includes some signal contact mass of the board power connector 200 and/or the cable power connector 300 to reduce the connector footprint breadth on the top side of the circuit card 110 and to reduce the depth of the connector mass below the bottom side of the circuit card to reduce the airflow restriction caused by the power connectors 200, 300.
Fig. 7 is a top perspective view of a board power connector 200 according to an exemplary embodiment. Fig. 8 is a bottom perspective view of a board power connector 200 according to an exemplary embodiment. Fig. 7 and 8 illustrate mating interfaces of the board power connector 200, for example, for mating with a cable power connector 300 (shown in fig. 1). Fig. 8 illustrates a mounting interface of the board power connector 200, for example, for mounting to the circuit card assembly 102 (shown in fig. 1).
The board power connector 200 includes a board housing 210 that holds board power contacts 212, board signal contacts 214, and mounting bosses 216 for mounting the board power connector 200 to the circuit card 110. The board power contacts 212 are configured to electrically connect to the circuit card assembly 102 and the cable power connector 300. The board signal contacts 214 are configured to electrically connect to the circuit card assembly 102 and the cable power connector 300.
The plate housing 210 is a dielectric housing, such as a plastic housing. The plate housing 210 may be manufactured by a molding process to form the plate housing 210. In an exemplary embodiment, the plate housing 210 is box-shaped. The panel housing 210 includes a top 220 and a bottom 222 opposite the top 220. The panel housing 210 includes a front 224 and a rear 226 opposite the front 224. The panel housing 210 includes sides 228 extending between the top 220 and the bottom 222 and between the front 224 and the rear 226. In alternative embodiments, the plate housing 210 may have other shapes. The board housing 210 includes a latch feature 230 along the top 220 that is configured to interface with a latch 306 (shown in fig. 1) to secure the cable power connector 300 to the board power connector 200. In alternative embodiments, the latching feature 230 may be in other positions.
The board housing 210 includes a cavity 232 that receives the board power contact 212. Cavity 232 is open, for example, at front 224 to receive a portion of cable power connector 300. For example, the cable power connector 300 is configured to plug into the cavity 232 to electrically connect with the board power contacts 212. In the illustrated embodiment, the cavity 232 is rectangular in shape; however, in alternative embodiments, the cavity 232 may have other shapes. The plate housing 210 includes a dividing wall 234 between the cavities 232. The partition wall 234 extends between an upper wall 236 and a lower wall 238 of the plate housing 210. A lower wall 238 extends along the bottom 222 and an upper wall 236 extends along the top 220. Optionally, one or more of the cavities 232 may include keying features 240 for keyed engagement with the cable power connector 300. In the illustrated embodiment, the keying feature 240 is a groove in the upper wall 236 that opens into the cavity 232.
In the exemplary embodiment, board housing 210 includes signal contact channels 242 that receive corresponding board signal contacts 214. The board signal contacts 214 are retained in the signal contact channels 242. In the exemplary embodiment, signal contact channels 242 are disposed in lower wall 238 and open at bottom 222 to expose board signal contacts 214 along bottom 222 of board housing 210. Signal contact channels 242 are located between cavity 232 and bottom 222. The signal contact channels 242 position the board signal contacts 214 between the board power contacts 212 and the circuit card 110. In alternative embodiments, the signal contact channels 242 may be located elsewhere.
In the exemplary embodiment, the board signal contacts 214 are stamped and formed contacts. The board signal contacts 214 are configured to be received in corresponding signal contact channels 242. Each board signal contact 214 includes a mating end 250 and a terminating end 252. Alternatively, the board signal contacts 214 may be right angle contacts having mating ends 250 perpendicular to terminating ends 252. The mating end 250 is configured to mate with the cable power connector 300. Terminating end 252 is configured to terminate to circuit card 110.
In an exemplary embodiment, the board signal contacts 214 include solder tail portions 254 at the terminating ends 252 that are configured to be soldered to the circuit card 110. In the illustrated embodiment, the solder tail portions 254 are configured to be mounted through to the circuit card 110, such as in a through hole of the circuit card 110. Alternatively, the solder tail portions 254 may be surface mounted to the circuit card 110. In other various embodiments, terminating end 252 may include compliant pins configured to be press fit into circuit card 110.
In the exemplary embodiment, board signal contacts 214 include beams 256 at mating end 250. In various embodiments, the beams 256 are contained within the signal contact channels 242, such as within the envelope of the board housing 210. For example, the beams 256 may be substantially coplanar with the bottom 222 of the plate housing 210. In other various embodiments, the beams 256 may be deflectable spring beams and configured to extend below the bottom 222 to mate with the cable power connector 300. Alternatively, the beams 256 of the board signal contacts 214 may have different lengths. For example, one or more of the beams 256 may be shorter and/or one or more of the beams 256 may be longer to mate with the cable power connector 300 sequentially. For example, one of the board signal contacts 214 may be a sense contact having a shorter beam 256 configured to last mate and first break during mating and unmating with the cable power connector 300. The sensing contacts may be used to activate and deactivate the power circuitry of the power connector system 100.
The board power contacts 212 are positioned within the corresponding cavities 232 to mate with the cable power connector 300. Board power contacts 212 extend from the board housing 210 to electrically connect to the circuit card 110. In the exemplary embodiment, each board power contact 212 extends between a mating end 260 and a terminating end 262. Alternatively, the board power contacts 212 may be right angle contacts having mating ends 260 perpendicular to terminating ends 262. The mating end 260 is configured to mate with the cable power connector 300. Terminating end 262 is configured to terminate to circuit card 110.
In an exemplary embodiment, the board power contacts 212 include solder tail portions 264 at the terminating ends 262 that are configured to be soldered to the circuit card 110. In the illustrated embodiment, the solder tail portions 264 are configured to be mounted through to the circuit card 110, such as in a through hole of the circuit card 110. Alternatively, the solder tail portions 264 may be surface mounted to the circuit card 110. In other various embodiments, terminating end 262 may include compliant pins configured to be press-fit into circuit card 110.
In the exemplary embodiment, board power contact 212 includes a blade 266 at mating end 260. In various embodiments, the blade 266 is contained within a receptacle, such as within the envelope of the board housing 210. Optionally, blade 266 is disposed within the receptacle such that cable power connector 300 is configured to mate with both sides of blade 266. Blade 266 has a large surface area on both sides to electrically connect with cable power connector 300.
Fig. 9 is a front, top perspective view of a cable power connector 300 according to an exemplary embodiment. Fig. 10 is a rear, bottom perspective view of a cable power connector 300 according to an exemplary embodiment. Fig. 11 is a side view of a cable power connector 300 according to an exemplary embodiment.
The cable power connector 300 includes a cable housing 310 that holds cable power contacts 312 (shown in phantom in fig. 11) and cable signal contacts 314 (shown in phantom in fig. 11). The cable power contacts 312 are configured to electrically connect to the power cable 302 and the board power contacts 212 (shown in fig. 7). The cable signal contacts 314 are configured to electrically connect to the signal cables 304 and the board signal contacts 214 (shown in fig. 7).
The cable housing 310 is a dielectric housing, such as a plastic housing. The cable housing 310 may be manufactured by a molding process to form a plug housing. In the exemplary embodiment, cable jacket 310 is substantially box-shaped. The cable housing 310 includes a top portion 320 and a bottom portion 322 opposite the top portion 320. The cable housing 310 includes a front portion 324 and a rear portion 326 opposite the front portion 324. The cable housing 310 includes sides 328 that extend between the top 320 and the bottom 322 and between the front 324 and the rear 326. In alternative embodiments, the cable housing 310 may have other shapes. The cable housing 310 supports a latch 306 along a top 320 that is configured to interface with a latch feature 230 (shown in fig. 7) to secure the cable power connector 300 to the board power connector 200.
The cable housing 310 includes a contact bin 330 at the front 324. The contact bin 330 includes contact channels 332 that receive the cable power contacts 312. The contact channels 332 are open at the front 324 to receive the board power contacts 212 (shown in fig. 7) when the cable power connector 300 is mated with the board power connector 200. The contact pockets 330 are sized and shaped to fit within the corresponding cavities 232 (shown in fig. 7) during mating to electrically connect the cable power contacts 312 with the board power contacts 212. In the illustrated embodiment, the contact bin 330 is rectangular in shape; however, in alternative embodiments, the contact bin 330 may have other shapes. The cable housing 310 includes slots 334 between the contact bins 330. The slots 334 are configured to receive the dividing wall 234 of the plate housing 210 when the contact bin 330 is inserted into the cavity 232 (as shown in fig. 7). In the exemplary embodiment, contact bin 330 extends forward from a base wall 335 that extends between an upper wall 336 and a lower wall 338 of cable jacket 310. A lower wall 338 extends along the bottom 322 and an upper wall 336 extends along the top 320. Optionally, one or more of the contact bins 330 may include keying features for keyed engagement with the cable power connector 300. In the illustrated embodiment, the keying feature is a rib extending along the contact bin 330, such as at the top of one or more of the contact bins 330.
In the exemplary embodiment, cable jacket 310 includes a platform 340 at a bottom 322 of cable jacket 310. A platform 340 is disposed at the front 324 of the cable jacket 310. The platform 340 supports the cable signal contacts 314. In the exemplary embodiment, platform 340 includes signal contact channels 342 that receive corresponding cable signal contacts 314. The cable signal contacts 314 are held in the signal contact channels 342. The platform 340 has an upper surface 344 and a lower surface 346 opposite the upper surface 344. In various embodiments, the lower surface 346 is disposed at the bottom 322 of the cable jacket 310. The upper surface 344 faces the contact cartridge 330 with a gap 348 therebetween. The platform 340 is spaced apart from the contact bin 330 by a gap 348. Gap 348 is open at front 324 to receive lower wall 238 (shown in fig. 7) when cable power connector 300 is mated with board power connector 200. In the exemplary embodiment, cable signal contacts 314 are disposed on upper surface 344 and extend into gap 348 to interface with board signal contacts 214 when force cable connector 300 is mated with board power connector 200. The cable signal contacts 314 are located between the cable power contacts 312 and the bottom 322. In alternative embodiments, the cable signal contacts 314 may be disposed in other locations.
In an exemplary embodiment, the cable signal contacts 314 are stamped and formed contacts. Each cable signal contact 314 includes a mating end 350 and a terminating end 352. The mating ends 350 are configured to mate with the board signal contacts 214 of the board power connector 200. Termination end 352 is configured to terminate to signal cable 304. In the exemplary embodiment, cable signal contacts 314 include a crimp barrel at termination end 352 configured to be crimped to signal cable 304; however, in alternative embodiments, terminating end 352 may terminate by other means. The signal cable 304 extends from the rear 326, for example, from the rear of the platform 340.
In the exemplary embodiment, each cable signal contact 314 includes a spring beam 356 at the mating end 350 that is configured to mate with the board signal contact 214. Spring beams 356 are deflectable and extend above upper surface 344 to interface with board signal contacts 214. Alternatively, the cable signal contacts 314 may have different lengths. For example, one or more of the cable signal contacts 314 may be shorter to mate with the board power connector 200 sequentially. For example, one of the cable signal contacts 314 may be a sense contact that positions the spring beam 356 farther from the front 324 to last mate and first break during mating and unmating with the board power connector 200. The sensing contacts may be used to activate and deactivate the power circuitry of the power connector system 100.
The cable power contacts 312 are positioned within corresponding contact channels 332 to mate with the board power contacts 212 when the cable power connector 300 is mated with the board power connector 200. In the exemplary embodiment, each cable power contact 312 extends between a mating end 360 and a terminating end 362. The mating ends 360 are configured to mate with corresponding board power contacts 212. Termination end 362 is configured to terminate to circuit card 110. In an exemplary embodiment, the terminating end includes a crimp barrel configured to be crimped to a corresponding power cable 302. In the exemplary embodiment, each cable power contact 312 includes a spring beam 366 at mating end 360 for mating with a corresponding board power contact 212. Optionally, each board power contact 212 includes a plurality of spring beams 366 for mating with the board power contact 212. The spring beams 366 may be configured to engage both sides of the board power contact 212 to electrically connect with the cable power connector 300.
Turning to fig. 4, a cable power connector 300 mated to the board power connector 200 is shown in fig. 4. The cable housing 310 is located generally above the top surface 112 of the circuit card 110. A platform 340 at the bottom 322 of the cable jacket 310 is received in the window 140. The signal cables 304 and cable signal contacts 314 do not increase the overall footprint of the power connector system 100 on the circuit card 110. With the addition of the signal cable 304 and the cable signal contacts 314, the cable power connector 300 remains low profile and contained within the footprint of the cable housing 310 required for the power cable 302 and the cable power contacts 312.
Referring additionally to fig. 5, a platform 340 is received in the window 140 to electrically connect the cable signal contacts 314 with the board signal contacts 214 at the bottom 222 of the board housing 210. When the cable power connector 300 is mated to the board power connector 200, the lower wall 238 of the board housing 210 is received in the gap 348 between the platform 340 and the contact bin 330. The cable signal contacts 314 on the upper surface 344 of the platform 340 meet the board signal contacts 214 at the bottom 222 of the board housing 210.
Claims (15)
1. A power connector system (100) for a circuit card assembly (102), the power connector system comprising:
A board power connector (200) having a board housing (210) including a top (220), a bottom (222), a front (224), and a rear (226), the board housing including a cavity (232) open at the front, the bottom configured to mount to a circuit card (110) of the circuit card assembly, the board housing including signal contact channels (242) on the bottom, the board power connector including board power contacts (212) received in the corresponding cavities, each board power contact including a mating end (260) and a terminating end (262), the terminating ends of the board power contacts configured to terminate to the circuit card, the board power connector including board signal contacts (214) received in the corresponding signal contact channels (242), each board signal contact including a mating end (250) and a terminating end (252), the terminating ends of the signal contact channels configured to terminate to the circuit card, the mating ends of the board signal contacts exposed along the bottom of the board housing; and
A cable power connector (300) configured to be mated to the board power connector, the cable power connector having a cable housing (310) including a top (320), a bottom (322), a front (324) and a rear (326), the cable power connector including a power cable (302) extending from the rear, the cable housing including a contact bin (330) at the front, the cable power connector including a cable power contact (312) retained in a corresponding contact bin, the cable power contact terminating to a corresponding power cable, the contact bin and the cable power contact being received in a cavity of the board housing to mate the cable power contact with the board power contact, the cable power connector including a cable signal contact (314) disposed at the bottom of the cable housing outside the contact bin for mating with the board signal contact when the cable power connector is mated with the board power connector.
2. The power connector system (100) of claim 1, wherein the signal contact channels (242) open at a bottom (222) of the board housing (210) to expose mating ends (250) of the board signal contacts (214) along the bottom of the board housing.
3. The power connector system (100) of claim 1, wherein the board signal contacts (214) are outside of the cavity (232) of the board housing (210).
4. The power connector system (100) of claim 1, wherein the mating ends (250) of the board signal contacts (214) are coplanar with the bottom (222) of the board housing (210).
5. The power connector system (100) of claim 1, wherein the circuit card (110) has a mounting area (130) in which there is a window (140) through the circuit card, the bottom (222) of the board housing (210) being mounted to the circuit card at the mounting area, the mating ends (250) of the board signal contacts (214) being exposed through the window.
6. The power connector system (100) of claim 5, wherein the circuit card (110) includes a card edge (120) having contact pads (122), the card edge configured to be loaded into a slot (124) of a card edge connector (150).
7. The power connector system (100) of claim 5, wherein the cable signal contact (314) is received in the window (140).
8. The power connector system (100) of claim 5, wherein the cable enclosure (310) includes a platform (340) at a bottom (322) of the cable enclosure, the platform supporting the cable signal contacts (314), the platform being received in the window (140).
9. The power connector system (100) of claim 1, wherein the cable housing (310) includes a platform (340) at a bottom (322) of the cable housing, the platform being spaced apart from the contact pocket (330) with a gap (348) therebetween in which a mating end (350) of the cable signal contact (314) is exposed, the gap receiving the bottom (222) of the board housing (210) to mate the board signal contact (214) with the cable signal contact.
10. The power connector system (100) of claim 1, wherein the cable housing (310) includes a platform (340) extending along the contact pocket (330), the platform including an upper surface (344) and a lower surface (346), the lower surface disposed at a bottom (322) of the cable housing, the upper surface facing the contact pocket with a gap (348) therebetween, the cable signal contacts (314) including mating ends (350) along the upper surface for mating with the board signal contacts (214) of the bottom (222) of the board housing (210).
11. The power connector system (100) of claim 1, wherein the cable signal contacts (314) are coplanar with a circuit card of the circuit card assembly (102).
12. A power connector system (100) for a circuit card assembly (102), the power connector system comprising:
A board power connector (200) configured to be mounted to a circuit card (110) of the circuit card assembly (102) and configured to mate with a cable power connector (300), the board power connector comprising:
A board housing (210) including a top (220), a bottom (222), a front (224), and a rear (226), the board housing including a cavity (232) open at the front, the bottom configured to terminate to a circuit card of the circuit card assembly, the board housing including signal contact channels (242) on the bottom;
Board power contacts (212) received in the corresponding cavities, each board power contact including a mating end (260) configured to terminate to the circuit card and a terminating end (262) configured to mate to a cable power contact (312) of the cable power connector (300);
Board signal contacts (214) received in corresponding signal contact channels (242), each board signal contact including a mating end (250) configured to terminate to the circuit card (110) and a terminating end (252), the mating ends of the board signal contacts exposed along a bottom of the board housing (210) to mate with cable signal contacts (314) of the cable power connector (300).
13. The power connector system (100) of claim 12, wherein the signal contact channels are open at a bottom of the board housing to expose mating ends of the board signal contacts along the bottom of the board housing.
14. The power connector system (100) of claim 12, wherein the circuit card (110) has a mounting area (130) in which there is a window (140) through the circuit card, the bottom (222) of the board housing (210) being mounted to the circuit card at the mounting area, the mating ends (250) of the board signal contacts (214) being exposed through the window.
15. The power connector system (100) of claim 14, wherein the circuit card (110) includes a card edge having contact pads, the card edge configured to be loaded into a slot (124) of a card edge connector (150).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962872932P | 2019-07-11 | 2019-07-11 | |
| US62/872,932 | 2019-07-11 | ||
| US16/878,060 US11355877B2 (en) | 2019-07-11 | 2020-05-19 | Power connector system for circuit card assembly |
| US16/878,060 | 2020-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112217045A CN112217045A (en) | 2021-01-12 |
| CN112217045B true CN112217045B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010650207.9A Active CN112217045B (en) | 2019-07-11 | 2020-07-08 | Power connector system for circuit card assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112217045B (en) |
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|---|---|
| CN112217045A (en) | 2021-01-12 |
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