CN112217045A - Power connector system for circuit card assembly - Google Patents

Power connector system for circuit card assembly Download PDF

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Publication number
CN112217045A
CN112217045A CN202010650207.9A CN202010650207A CN112217045A CN 112217045 A CN112217045 A CN 112217045A CN 202010650207 A CN202010650207 A CN 202010650207A CN 112217045 A CN112217045 A CN 112217045A
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CN
China
Prior art keywords
board
power
cable
circuit card
contacts
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.)
Pending
Application number
CN202010650207.9A
Other languages
Chinese (zh)
Inventor
B.P.科斯泰洛
M.舒马切尔
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.)
TE Connectivity Corp
Original Assignee
TE Connectivity Corp
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
Priority claimed from US16/878,060 external-priority patent/US11355877B2/en
Application filed by TE Connectivity Corp filed Critical TE Connectivity Corp
Publication of CN112217045A publication Critical patent/CN112217045A/en
Pending legal-status Critical Current

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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
    • 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
    • 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

Abstract

A power connector system (100) for a circuit card assembly (102) includes a board power connector (200) and a power cable connector (300) coupled to the board power connector. The board power connector includes a board housing (210) having a cavity (232) that retains the power contacts and signal contact channels (242) on a bottom (222) that retain the signal contacts. The power cable connector has a cable housing (310) with a contact cartridge (330) that holds cable power contacts (312) terminated to a power cable (302). The contact magazine and the cable power contacts are received in the cavities of the board housing to mate the cable power contacts with the board power contacts (212). The cable housing includes a platform below the contact bay to hold the cable signal contacts (314) outside of the contact bay at a bottom (322) of the cable housing to mate with the board signal contacts (214) when the power cable connector is mated with the board power connector.

Description

Power connector system for circuit card assembly
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 power to operate. Typically, power is delivered to the circuit card across an interface with a card edge connector that receives the circuit card. However, providing power contacts at the interface increases the number of contacts required at the interface. When using a standard interface, the number of contacts may not be increased to accommodate the greater power requirements. Furthermore, the contact pads are typically small and therefore 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 the power cable connector to provide power to the circuit card. Signaling needs to be provided through the power cable connector. However, known power cable connectors having signal contacts have increased profiles and footprints (focprints). 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 real estate 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 plate housing includes a cavity open at the front. The base is configured to mount to a circuit card of the circuit card assembly. The board housing includes signal contact channels on a bottom portion. 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 end of the board power contact is configured to be terminated to a circuit card. The board power connector includes board signal contacts received in corresponding signal contact channels. Each of the board signal contacts includes a mating end and a terminating end. The terminating ends of the signal contact channels are configured to be terminated 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 power cable connector configured to mate to a board power connector. The power cable connector has a cable housing including a top, a bottom, a front, and a rear. The power cable connector includes a power cable extending from the rear portion. The cable housing includes a contact chamber at the front. The power cable connectors include cable power contacts held in corresponding contact silos. The cable power contacts are terminated to corresponding power cables. The contact magazine and the cable power contacts are received in the cavity of the board housing to mate the cable power contacts with the board power contacts. The power cable connector includes cable signal contacts disposed at a bottom of the cable housing outside of the contact magazine to mate with the board signal contacts when the power cable 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 power cable connector. The board power connector includes a board housing including a top, a bottom, a front, and a rear. The plate housing includes a cavity open at the front. The base is configured to mount to a circuit card of the circuit card assembly. The board housing includes signal contact channels on a bottom portion. The board power contacts are received in the corresponding cavities. Each board power contact includes a mating end and a terminating end. The terminating end of the board power contact is configured to be terminated to a circuit card. The mating end of the board power contact is configured to mate to a cable power contact of the power connector. The board signal contacts are received in corresponding signal contact channels. Each of the board signal contacts includes a mating end and a terminating end. The terminating ends of the signal contact channels are configured to be terminated to a circuit card. The mating ends of the board signal contacts are exposed along the bottom of the board housing for mating with the cable signal contacts of the power cable 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.
Figure 3 is a top view of a power connector system mounted to a circuit card assembly according to an exemplary embodiment.
Figure 4 is an end view of the 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 the circuit card, according to an exemplary embodiment.
Fig. 6 is a top perspective view of a portion of a circuit card assembly according to an exemplary 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 power cable connector of the 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 exemplary 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 embodiment shown, 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 rim 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 a guide slot 124 to guide the mating with the card edge connector. The circuit card 110 includes a latching feature 126 for latchably coupling the circuit card 110 to the card edge connector.
The circuit card 110 includes a mounting area 130, such as along a side edge 132 of the circuit card 110. The power connector system 100 is electrically connected to the circuit card 110 at the mounting area. The power connector system 100 provides power to the circuit card assembly 102. In an exemplary embodiment, the circuit card 110 includes mounting openings 134 for mounting the connectors of the power connector system 100 to the circuit card 110, such as using mounting tabs, fasteners, or other securing features. The circuit card 110 includes power conductors 136 configured to electrically connect to the power contacts of the power connector and signal conductors 138 configured to electrically connect to the signal contacts of the power connector. In the illustrated embodiment, the power conductors 136 and signal conductors 138 comprise plated through holes that pass through the circuit card 110. Other types of conductors, such as solder pads or contacts that terminate to the circuit card 110, may be used in alternative embodiments.
In an exemplary embodiment, the circuit card 110 includes a window 140 at the mounting area 130. The window 140 receives a portion of the electrical connector of the power connector system 100. The window 140 provides space to receive an electrical connector to mate with the circuit card assembly 102 and/or an electrical connector mounted to the 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 power cable connector 300. The power cable connector 300 includes a power cable 302 and a signal cable 304 configured to be electrically connected to the board power connector 200. The power cable connector 300 includes a latch 306 for securing the power cable 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 power cable 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 an exemplary embodiment, the board power connector 200 and the power cable connector 300 have a low profile to increase airflow and more tightly package electrical components.
Fig. 3 is a top view of the power connector system 100 mounted to the circuit card assembly 102. Figure 4 is an end view of the power connector system 100 mounted to the circuit card assembly 102. Fig. 3 and 4 show 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 may be transmitted to the circuit card 110 than if only the card edge connector were used to transmit 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 the circuit card assembly 102 showing the board power connector 200 mounted to the circuit card 110, according to an exemplary embodiment. Fig. 6 is a top perspective view of a portion of the circuit card assembly 102 with the board power connector 200 removed for clarity. The circuit card 110 includes power conductors 136 in signal conductors 138 along the side edges 132 at the mounting area 130. 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 for encoding to determine the type of power cable 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 conductor 138 may be used as part of sensing circuitry for controlling power to the circuit card assembly 102. 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 area 130 such that the board power connector 200 may be mounted to the circuit card 110 proximate 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 tabs 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 the 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 is already 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 contains some of the signal contact mass of the board power connector 200 and/or the power cable connector 300 to reduce the connector footprint width 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 the board power connector 200 according to an exemplary embodiment. Fig. 8 is a bottom perspective view of the board power connector 200 according to an exemplary embodiment. Fig. 7 and 8 illustrate a mating interface of the board power connector 200, for example, for mating with a power cable 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 tabs 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 power cable connector 300. The board signal contacts 214 are configured to electrically connect to the circuit card assembly 102 and the power cable connector 300.
The board housing 210 is a dielectric housing, such as a plastic housing. The board housing 210 may be manufactured through a molding process to form the board housing 210. In the exemplary embodiment, plate housing 210 is box-shaped. The board housing 210 includes a top portion 220 and a bottom portion 222 opposite the top portion 220. The board housing 210 includes a front 224 and a rear 226 opposite the front 224. The board housing 210 includes sides 228 that extend between the top 220 and bottom 222 and between the front 224 and rear 226. In alternative embodiments, the board housing 210 may have other shapes. The board housing 210 includes latching features 230 along the top 220 that are configured to interface with latches 306 (shown in fig. 1) to secure the power cable 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 cavities 232 that receive the board power contacts 212. The cavity 232 is open, for example, at the front 224 to receive a portion of the power cable connector 300. For example, the power cable 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 dividing wall 234 extends between an upper wall 236 and a lower wall 238 of the plate housing 210. Lower wall 238 extends along bottom 222 and upper wall 236 extends along top 220. Optionally, one or more of the cavities 232 may include keying features 240 for keying engagement with the power cable connector 300. In the illustrated embodiment, the keying feature 240 is a groove in the upper wall 236 that leads to 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 held in the signal contact channels 242. In an exemplary embodiment, signal contact channels 242 are disposed in the lower wall 238 and open at the bottom 222 to expose the board signal contacts 214 along the bottom 222 of the board housing 210. The signal contact channels 242 are located between the cavity 232 and the 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 disposed in other locations.
In an 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 the terminating ends 252. The mating end 250 is configured to mate with a power cable connector 300. The terminating end 252 is configured to terminate to the circuit card 110.
In an exemplary embodiment, the board signal contacts 214 include solder tails 254 at the terminating ends 252 that are configured to be soldered to the circuit card 110. In the illustrated embodiment, the solder tail 254 is configured to be through-mounted 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, the terminating end 252 may include compliant pins configured to be press fit into the circuit card 110.
In an exemplary embodiment, the board signal contact 214 includes a beam 256 at the 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 beam 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 power cable connector 300. Alternatively, the beams 256 of the board signal contact 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 sequentially mate with the power cable connector 300. For example, one of the board signal contacts 214 may be a sensing contact having a shorter beam 256 that is configured to last engage and first disengage during mating and unmating with the power cable connector 300. The sensing contacts may be used to activate and deactivate the power circuit of the power connector system 100.
The board power contacts 212 are located within corresponding cavities 232 to mate with the power cable connector 300. The board power contacts 212 extend from the board housing 210 to electrically connect to the circuit card 110. In the exemplary embodiment, each of the board power contacts 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 that are perpendicular to the terminating ends 262. The mating end 260 is configured to mate with the power cable connector 300. The terminating end 262 is configured to be terminated to the circuit card 110.
In an exemplary embodiment, the board power contacts 212 include solder tails 264 at the terminating ends 262 that are configured to be soldered to the circuit card 110. In the illustrated embodiment, the solder tail portion 264 is configured to be through-mounted 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, the terminating end 262 may include compliant pins configured to be press fit into the circuit card 110.
In an exemplary embodiment, the board power contacts 212 include blades 266 at the mating end 260. In various embodiments, blade 266 is contained within receptacle 232, such as within the envelope of board housing 210. Optionally, blade 266 is disposed within receptacle 232 such that power cable connector 300 is configured to mate with both sides of blade 266. The blades 266 have a large surface area on both sides to electrically connect with the power cable 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 the cable power connector 300 according to an exemplary embodiment. Fig. 11 is a side view of the cable power connector 300 according to an example embodiment.
The power cable 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 cables 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 the plug housing 310. In the exemplary embodiment, cable housing 310 is substantially box-shaped. The cable jacket 310 includes a top portion 320 and a bottom portion 322 opposite the top portion 320. The cable jacket 310 includes a front 324 and a rear 326 opposite the front 324. The cable jacket 310 includes sides 328 that extend between the top 320 and the bottom 322 and between the front 324 and the back 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 latching feature 230 (shown in fig. 7) to secure the power cable connector 300 to the board power connector 300.
The cable housing 310 includes a contact chamber 330 at the front 324. The contact cartridge 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 power cable connector 300 is mated with the board power connector 200. The contact silos 330 are sized and shaped to fit within 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 cartridge 330 is rectangular in shape; however, in alternative embodiments, the contact cartridge 330 may have other shapes. The cable jacket 310 includes slots 334 between the contact silos 330. The slots 334 are configured to receive the dividing walls 234 (shown in fig. 7) of the board housing 210 when the contact cartridge 330 is inserted into the cavity 232. In the exemplary embodiment, contact cartridge 330 extends forward from a base wall 335 that extends between an upper wall 336 and a lower wall 338 of cable housing 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 silos 330 may include keying features for keying engagement with the power cable connector 300. In the illustrated embodiment, the keying feature is a rib that extends along the contact cartridge 330, such as at the top of one or more contact cartridges 330.
In the exemplary embodiment, cable jacket 310 includes a platform 340 at a bottom 332 of cable jacket 310. Platform 340 is disposed at front 324 of cable jacket 310. Platform 340 supports 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, lower surface 346 is disposed at bottom 322 of cable jacket 310. The upper surface 344 faces the contact cartridge 330 across the gap 348. The platform 340 is spaced from the contact cartridge 330 by a gap 348. Gap 348 is open at front 324 to receive lower wall 238 (shown in fig. 7) when power cable 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 gaps 348 to interface with board signal contacts 214 when power cable connector 300 is mated with board power connector 200. The cable signal contacts 314 are located between the board power contacts 312 and the base 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 end 350 is configured to mate with a board signal contact 214 of the board power connector 200. The terminating end 352 is configured to terminate to the signal cable 304. In an exemplary embodiment, the cable signal contacts 314 include crimp barrels at the termination ends 352 configured to be crimped to the signal cables 304; however, in alternative embodiments, the termination end 352 may be terminated by other means. The signal cable 304 extends from the rear 326, such as from the rear of the platform 340.
In an exemplary embodiment, each cable signal contact 314 includes spring beams 356 at the mating end 350 that are configured to mate with the board signal contacts 214. The spring beams 356 are deflectable and extend above the upper surface 344 to interface with the 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 sequentially mate with the board power connector 200. For example, one of the cable signal contacts 314 may be a sensing contact that positions the spring beam 356 farther away from the front 324 to last engage and first disengage during mating and unmating with the board power connector 200. The sensing contacts may be used to activate and deactivate the power circuit 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 power cable connector 300 is mated with the board power connector 200. In an exemplary embodiment, each cable power contact 312 extends between a mating end 360 and a terminating end 362. The mating end 360 is configured to mate with a corresponding board power contact 212. The termination end 362 is configured to be terminated to the 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 an exemplary embodiment, each cable power contact 312 includes a spring beam 366 at the mating end 360 for mating with a corresponding board power contact 212. Optionally, each of the board power contacts 212 includes a plurality of spring beams 366 for mating with the board power contacts 212. The spring beams 366 may be configured to engage both sides of the board power contacts 212 to electrically connect with the power cable connector 300.
Turning to fig. 4, a power cable connector 300 is shown in fig. 4 mated to the board power connector 200. The cable housing 310 is generally located 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 power cable connector 300 remains low profile and contained within the footprint of the cable jacket 310 required by the power cable 302 and the cable power contacts 312.
With additional reference to fig. 5, the 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 power cable connector 300 is mated to board power connector 200, lower wall 238 of board housing 210 is received in gap 348 between platform 340 and contact cartridge 330. The cable signal contacts 314 on the upper surface 344 of the platform 340 interface with 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 back (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 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 be terminated to the circuit card, the board power connector including board signal contacts (214) received in 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 be terminated to the circuit card, the mating end of the board signal contact is exposed along the bottom of the board housing; and
a power cable connector (300) configured to be mated to the board power connector, the power cable connector having a cable housing (310) including a top (320), a bottom (322), a front (324), and a rear (326), the power cable connector including a power cable (302) extending from the rear, the cable housing including a contact pocket (330) at the front, the power cable connector including cable power contacts (312) retained in corresponding contact pockets, the cable power contacts terminated to corresponding power cables, the contact pockets and the cable power contacts received in cavities of the board housing to mate the cable power contacts with the board power contacts, the power cable connector including cable signal contacts (314) disposed at the bottom of the cable housing outside of the contact pockets, for mating with the board signal contacts when the power cable connector is mated with the board power connector.
2. The power connector system (100) of claim 1, wherein the signal contact channels (242) are open at a bottom (222) of the board housing (210) to expose the mating ends (360) 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 contact (214) is outside of a cavity (232) of the board housing (210).
4. The power connector system (100) of claim 1, wherein the mating end (360) of the board signal contact (214) is 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) with a window (140) therethrough, the bottom (222) of the board housing (210) being mounted to the circuit card at the mounting area, the mating ends (360) 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) 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 contacts (314) are received in the window (140).
8. The power connector system (100) of claim 5, wherein the cable housing (310) includes a platform (340) at a bottom (322) of the cable housing, 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 magazine (330) with a gap (348) therebetween, the mating end (350) of the cable signal contact (314) being exposed in the gap, 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 bay (330), the platform including an upper surface (344) and a lower surface (346), the lower surface disposed at the bottom (322) of the cable housing, the upper surface facing the contact bay across the gap (348), 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 power cable 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 be terminated 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) and a terminating end (262), the terminating ends of the board power contacts configured to be terminated to the circuit card, the mating ends of the board power contacts configured to be mated to cable power contacts (312) of the power cable connector (300);
board signal contacts (214) received in 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 be terminated to the circuit card (110), the mating ends of the board signal contacts being exposed along a bottom of the board housing (210) to mate with cable signal contacts (314) of the power cable 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 the 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) with a window (140) therethrough, the bottom (222) of the board housing (210) being mounted to the circuit card at the mounting area, the mating ends (360) 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).
CN202010650207.9A 2019-07-11 2020-07-08 Power connector system for circuit card assembly Pending CN112217045A (en)

Applications Claiming Priority (4)

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US201962872932P 2019-07-11 2019-07-11
US62/872,932 2019-07-11
US16/878,060 2020-05-19
US16/878,060 US11355877B2 (en) 2019-07-11 2020-05-19 Power connector system for circuit card assembly

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