GB2615382A - Circuit board, computer device, and connecting device - Google Patents

Circuit board, computer device, and connecting device Download PDF

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Publication number
GB2615382A
GB2615382A GB2214641.9A GB202214641A GB2615382A GB 2615382 A GB2615382 A GB 2615382A GB 202214641 A GB202214641 A GB 202214641A GB 2615382 A GB2615382 A GB 2615382A
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GB
United Kingdom
Prior art keywords
add
connector
card
circuit board
fastening device
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.)
Granted
Application number
GB2214641.9A
Other versions
GB2615382B (en
GB202214641D0 (en
Inventor
Noor Daniyal
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.)
Fujitsu Client Computing Ltd
Original Assignee
Fujitsu Client Computing Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Client Computing Ltd filed Critical Fujitsu Client Computing Ltd
Publication of GB202214641D0 publication Critical patent/GB202214641D0/en
Publication of GB2615382A publication Critical patent/GB2615382A/en
Application granted granted Critical
Publication of GB2615382B publication Critical patent/GB2615382B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/185—Mounting of expansion boards
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H05K7/142—Spacers not being card guides
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1429—Housings for circuits carrying a CPU and adapted to receive expansion cards
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1461—Slidable card holders; Card stiffeners; Control or display means therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/144—Stacked arrangements of planar printed circuit boards
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04—Assemblies of printed circuits
    • H05K2201/042—Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10189—Non-printed connector
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10409—Screws
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/368—Assembling printed circuits with other printed circuits parallel to each other

Abstract

The invention relates to a circuit board (1) for a computer device (9). The circuit board (1) comprises a first connector (2) adapted to connect a first add-on card (4) of a first form factor to the circuit board (1), at least one second connector (3) adapted to connect at least one second add-on card (5) of at least one second form factor to the circuit board (1), and a fastening device (6). The first connector (2) has a lower height (H1) than the at least one second connector (3), and the first connector (2) and the at least one second connector (3) are arranged on the circuit board (1) such that the first add-on card (4) and the at least one second add-on card (5) are attachable to the fastening device (6). The invention further relates to a computer system (9) and a connecting device (20).

Description

Description
Circuit board, computer device, and connecting device The present invention relates to a circuit board for a computer device, a computer device, and a connecting device.
Concerning modern computer systems, it is often an objective to produce computer systems that are as compact and space-efficient as possible. At the same time, however, it is also desired to provide such computer systems with a high degree of functionality. A problem to be solved is therefore to arrange as many components as possible in a computer system in a space-saving manner.
One object of the invention is to solve or alleviate the above problem.
The above-mentioned object is solved by the subject-matter of 20 the independent claims. Further embodiments of the invention are disclosed in the dependent claims.
According to a first aspect, a circuit board for a computer device comprises a first connector adapted to connect a first add-on card of a first form factor to the circuit board, and at least one second connector adapted to connect at least one second add-on card of at least one second form factor to the circuit board. The circuit board further comprises a fastening device. The first connector has a lower height than the at least one second connector, and the first connector and the at least one second connector are arranged on the circuit board such that the first add-on card and the at -2 -least one second add-on card are attachable to the fastening device.
An advantage of the circuit board disclosed herein is that add-on cards having different form factors and being connected to the circuit board via different connectors are attachable to the circuit board via a single fastening device. Because such fastening devices are, for example, soldered, screwed or otherwise attached to the circuit board, such fastening devices take up space on the circuit board. Thus, attaching at least two add-on cards to a common fastening device saves space by eliminating the need to provide a separate fastening device for each add-on card. By saving such fastening devices on the circuit board, more space is thus available on the circuit board for components or electrical lines.
The height of the first or at least one second connector here defines the distance from the circuit board in which the respective add-on card is arranged. A lower height thus means that the first add-on card is arranged closer to a surface of the circuit board than the at least one second add-on card. An advantage here is that the add-on cards can be arranged in layers, and thus less space on the circuit board is occupied by the add-on cards.
According to at least one embodiment of the circuit board, the fastening device comprises a first spacer bolt having an internal thread on a side facing away from the circuit board.
Such a fastening device is advantageous in particular because, via such a fastening device, if for example only the first add-on card is arranged on the circuit board, a screw -3 -can be used to fix this first add-on card to the fastening device. Optionally, however, it is also possible to screw a connecting device, which has a bolt with an external thread at one end, into the fastening device, and to fasten the at least one second add-on card to an end facing away from the bolt of the connecting device. The spacer bolt may, for example, be soldered, screwed, or otherwise fastened to the circuit board.
According to at least one embodiment, the first connector is a connector according to a first connection type, in particular according to the standard M.2 KeyE, and the at least one second connector is a connector according to at least one second connection type, in particular according to the standard M.2 KeyM.
An advantage here is that in this way add-on cards corresponding to different connection standards can be arranged on the circuit board in a space-saving manner.
According to at least one embodiment, an insertion direction into the first connector is parallel to an insertion direction into the at least one second connector and the first connector is arranged on a line between the fastening device and the at least one second connector.
An advantage here is that the first add-on card and the at least one second add-on card can thus be arranged one above the other, as viewed from the circuit board. In other words, the first add-on card is mountable between the circuit board and the at least one second add-on card. This allows a particularly space-saving arrangement of the add-on cards. -4 -
According to a second aspect, a computer device comprises a circuit board according to the first aspect. The computer device further comprises a first add-on card of a first form factor connected to the first connector and/or at least one second add-on card of at least one second form factor connected to the at least one second connector. The first add-on card and/or the at least one second add-on card are attached to the fastening device, and the first add-on card is arranged between the circuit board and the at least one 10 second add-on card.
Advantages and embodiments substantially correspond to those of the first aspect. Space saving on the circuit board is achieved here by providing only one fastening device on the circuit board, and the first and at least one second add-on card can be arranged in a same area in the computer device. In this way, the computer device can be built more compact compared to conventional computer devices having such add-on cards. In this way, as required, two or more add-on cards, or only one of the first and/or at least one second add-on card, may be arranged in the computer device without having to provide excessive space for multiple add-on cards on the circuit board.
According to at least one embodiment, the first add-on card and/or the at least one second add-on card are each attached to the fastening device with a side opposite from the first or the at least one second connector.
Advantageously, a secure and stable fastening of the first and/or at least one second add-on card is ensured. -s -
The opposite sides of the first and/or at least one second add-on card here describes, for example, a side of the respective add-on card that lies at an opposite end from the side at which the add-on card is connected to the respective connector. Alternatively, however, the opposite side may also be lateral sides of the add-on card that form a 90° angle with the side that is connected to the respective connector.
According to a third aspect, a connecting device has a first portion, the first portion having an external thread adapted to be screwed into a fastening device of a circuit board according to the first aspect. The connecting device further comprises a second portion, wherein the second portion is arranged at an end of the connecting device opposite the first portion, and the connecting device comprises an internal thread on the second portion, and wherein the connecting device further comprises a protruding part on the second portion adapted to engage a recess of an add-on board.
Advantageously, a connecting device is provided by means of which a plurality of add-on cards can be attached to a fastening device of a circuit board according to the first aspect. Alternatively, the connecting device disclosed here can be used to attach the at least one second add-on card to the fastening device even if no first add-on card is present.
Further advantageous embodiments are described below with reference to the attached figures. In the figures, identical reference signs are used for units having substantially the same function. However, these units need not be identical in all details.
In the Figures: -6 -Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 shows a perspective view of a circuit board according to a first embodiment of the invention, shows a top view of a computer device with a circuit board according to an embodiment of the invention, shows a side view of a first and a second connector according to an embodiment of the invention, shows a mounting hole and a spacer bolt of a fastening device according to an embodiment of the invention, and shows a top view and a sectional view of a connecting device according to an embodiment of the invention.
Figure 1 shows a perspective view of a circuit board 1 according to an embodiment of the invention. The circuit board 1 is, for example, a system board, or another printed circuit board (PCB) of a computer device. A first connector 2 and a second connector 3 are arranged on a surface of the circuit board. In the exemplary embodiments shown here, the first connector 2 is a connector according to the M.2 KeyE standard and the second connector 3 is a connector according to the M.2 KeyM standard. However, the first connector 2 and the second connector 3 can of course also be connectors of a different standard, and/or both connectors 2, 3 can comply with a same connection standard. -7 -
A first add-on card 4 is plugged into the first connector 2. The first add-on card 4 is inserted into the first connector 2 in such a way that the first add-on card 4 extends parallel to the surface of the circuit board 1. The first add-on card 4 is, for example, an add-on card which provides a WLAN module. Alternatively, however, the first add-on card may also represent any other add-on card.
A second add-on card 5 is plugged into the second connector 3. The second add-on card 5 is inserted into the second connector 3 such that the second add-on card 5 extends parallel to the surface of the circuit board 1. The second add-on card 5 is a solid-state drive (SSD) card in the exemplary embodiments shown here, but can also provide any other functionality In the exemplary embodiment shown herein, the first connector 2 has a lower height than the second connector 3 extending from the surface of the circuit board 1. In the exemplary embodiment shown here, the second connector 3 has approximately twice the height compared to the first connector 2. Due to the different heights of the first connector 2 and the second connector 3, the first add-on card 4 and the second add-on card 5 are correspondingly arranged at different heights above the circuit board 1.
The circuit board 1 further comprises a fastening device 6.
The fastening device 6 is largely concealed by the add-on cards 4, 5 in the depiction of figure 1 and is described in more detail with reference to figure 4. The fastening device 6 is designed to fasten, to the circuit board 1, an end of each of the add-on cards 4, 5 facing away from the connectors 2, 3. For this purpose, the add-on cards 4, 5 have recesses 7. In the illustration according to Figure 1, this recess can be seen on the second add-on card 5 as an example. The recess 7 is semicircular in the exemplary embodiment shown here, but can also have another shape. At this recess 7, the first add-on card 4 can be fastened directly to the fastening device 6 and the second additional card 5 can be fastened to the circuit board 1 via a connecting device, which is described with reference to Figure 5.
The first add-on card 4 and the second add-on card 5 have different form factors. In the exemplary embodiment shown here, these different form factors of the add-on cards 4, 5 have different extension lengths between the connectors 2, 3 and the fastening device 6. A width transverse to the extension length and parallel to the surface of the circuit board 1 is substantially the same for both form factors in the exemplary embodiment shown here.
The first connector 2 is arranged closer to the fastening device 6 than the second connector 3. In particular, the first connector 2 and the second connector 3 are arranged on the circuit board in such a way that the ends of the add-on cards 4, 5 facing away from the connectors 2, 3 lie substantially one above the other above the circuit board 1 and can thus be fastened to one fastening device 6 on the circuit board 1. In the exemplary embodiment shown here, a distance of the first connector 2 from the fastening device 6 corresponds to a length of the first add-on card 4 and a distance of the second connector 3 from the fastening device 6 corresponds to a length of the second add-on card 5.
Furthermore, the first connector 2 is arranged on a line between the fastening device 6 and the second connector 3, 50 -9 -that the first add-on card 4 and the second add-on card 5 are arranged substantially one above the other above the circuit board 1. In the embodiment shown here, the first connector 2 and the first add-on card 4 are arranged between the circuit board 1 and the second add-on card 5. In this way, substantially less space needs to be reserved on the circuit board 1 compared to an embodiment in which the first and second add-on cards 4, 5 are each arranged directly above the circuit board 1.
In the embodiment shown, the circuit board 1 has further components 8 which are not described in detail herein. Due to the greater height of the second connector 3 and the shorter length of the first additional card 4, such further components 8 may be arranged, for example, below the second additional card 5 on the circuit board 1, in an area in which the first additional card 4 does not extend. The further components 8 include, for example, transistors, computer chips, capacitors, or other components used in a computer system.
Figure 2 shows a top view of a computer device 9 according to an embodiment of the invention. The computer device 4 has a circuit board 1. The circuit board 1 substantially corresponds to the circuit board 1 described with reference to Figure 1. A first connector 2 and a second connector 3 are arranged on the circuit board 1. A first add-on card 4 is inserted into the first connector 2 and a second add-on card 5 is inserted into the second connector 3. The second connector 3 has a greater height than the first connector 2. Accordingly, the first connector 2 and the first add-on card 4 are located below the second add-on card 5 as seen from the top view of the computer device 9 and the circuit board 1 -10 -shown here, which is why the first connector 2 and the first add-on card 4 are shown with dashed lines.
The first add-on card 4 and the second add-on card 5 are attached to a common fastening device 6 on the circuit board 1. This fastening device 6 comprises, for example, on the circuit board 1 a mounting hole and a spacer bolt arranged on the mounting hole, which will be described in more detail with reference to Figure 4. In the exemplary embodiment shown here, therefore, only one mounting hole and one spacer bolt attached to the circuit board 1 itself are required to fasten multiple add-on cards 4, 5 to the circuit board. For this purpose, the add-on cards 4, 5 each have recesses 7 in an area of the fastening device 6. Further components 6 are shown on the circuit board 1, which are not described in more detail.
The embodiments according to Figure 1 and Figure 2 each show a first connector and a second connector, as well as a first add-on card and a second add-on card. Alternatively, however, further second connectors and further second add-on cards can of course also be present.
Figure 3 shows a first connector 2 and a second connector 3 according to an embodiment of the invention. The first connector 2, which is shown on the left in Figure 3, corresponds for example to the first connector as described according to Figure 1 and Figure 2. The second connector 3, shown in Figure 3 on the right, corresponds for example to the second connector 3 as described with reference to Figure 1 and Figure 2. In Figure 3, a side view of the connectors 2, 3 is shown.
The connectors 2, 3 each have a fastening bolt 10 by means of which the connectors 2, 3 can be mechanically fastened to a circuit board, for example the circuit board 1 according to Figure 1 and Figure 2. In addition, the connectors 2, 3 have pins 11 via which the connectors 2, 3 can be electrically connected to lines on a circuit board. On a side facing away from the fastening bolts 10 and the pins 11, the connectors 2, 3 have plug-in connections 12 into which add-on cards, for example the first or second add-on card according to Figure 1 10 and Figure 2, can be inserted.
The first connector 2 has a first height Hl. This first height H1 corresponds to an extension of the first connector 2 between a side with which the connector 2 is fastened to a circuit board and an opposite side facing away from this side, on which the plug-in connection 12 is arranged. The second connector 3 has a corresponding height H2. The first height H1 is less than the second height H2. For example, the height H1 is 4.2 mm. The height H2 is, for example, 8.5 m.
Figure 4 shows a mounting hole 13, which is shown on the left in Figure 4, and a spacer bolt 14, which is shown on the right in Figure 4, according to an embodiment of the invention. The mounting hole 13 and the spacer bolt 14 are exemplary parts of a fastening device as described, for example, with reference to Figures 1 and 2. The mounting hole 13, which is shown in a top view in Figure 4, is a mounting hole in a circuit board and has, in its center, a partial bore or through-bore 15 in the circuit board, for example the circuit board 1 according to Figures 1 and 2. Contacts 16 are arranged around the bore 15, for example for grounding the fastening device.
-12 -The spacer bolt 14, which is shown in a cross-sectional view in Figure 4, has a first portion A and a second portion B. In the first portion A, the spacer bolt 14 has a circumferential recess 17 at the side, which is designed in such a way that the spacer bolt 14 can be inserted into the bore 15 of the mounting hole 13 with the part of the first portion A protruding the recess 17.
In the second portion B of the spacer bolt 14, the spacer bolt 14 also has a circumferential recess 18, wherein the part of the spacer bolt 14 protruding the recess 18 in the second portion B is adapted to engage in a corresponding recess of a first add-on card, such as described with reference to Figures 1 and 2.
The spacer bolt 14 further comprises an internal thread 19 open on the second portion B. If only a first add-on card 4 is arranged on the circuit board as described, for example, with reference to Figures 1 and 2, the first add-on card is fixed to the spacer bolt 14 by screwing a screw into the internal thread 19, with which the first add-on card is fastened. If, alternatively or additionally, a second add-on card 5 is to be attached to the circuit board, a connecting device, for example as described below with reference to Figure 5, is screwed into the internal thread 19, and the second add-on card 5 is fixed to the spacer bolt 14 via the connecting device.
Figure 5 shows a top view of a connecting device 20, which is 30 shown on the left in Figure 5, and a cross-section of the connecting device 20, which is shown on the right in Figure 5, according to an embodiment of the invention.
-13 -The connecting device 20 has a first portion C and a second portion D opposite to the first portion C. In the first portion C, the connecting device 20 has a bolt 21 with an external thread 22. With this external thread 22, the connecting device 20 can be screwed into the internal thread 19 of the spacer bolt 14. If the connecting device 20 is screwed into the spacer bolt 14 in this manner and a first add-on card is attached to the recess 18 in the second portion B of the spacer bolt 14 as described above, the connecting device 20 fixes the first add-on card to the spacer bolt 14.
In the second portion D of the connecting device 20, the connecting device 20 has a circumferential recess 23. This recess 23 substantially corresponds to the recess 16 of the spacer bolt 14 and forms a protruding portion of the connecting device 20, which is adapted to engage a corresponding recess of a second add-on card, such as described with reference to Figures 1 and 2. The connecting device 20 further comprises an internal thread 24 open on the second portion D. If the connecting device 20 is screwed into the spacer bolt 14 and a second add-on card is to be fixed to a circuit board, the second add-on car, which rests with a corresponding recess against the recess 23 of the connecting device 20, is fixed, for example, by means of a screw inserted into the internal thread 24.
-14 -List of referece signs 1 circuit board 2 first connector 3 second connector 4 first add-on card second add-on card 6 fastening device 7 recess 8 further component 9 computer device fastening bolt 11 pin 12 plug-in connection 13 mounting hole 14 spacer bolt bore 16 contact 17 recess 18 recess 19 internal thread connecting device 21 bolt 22 external thread 23 recess 24 internal thread H1 first height H2 second height A first portion * second portion * first portion D second portion

Claims (9)

  1. -15 -Claims 1. A circuit board (1) for a computer device (9), the circuit board (1) comprising: - a first connector (2) configured to connect a first add-on card (4) of a first form factor to the circuit board (1), - at least one second connector (3) configured to connect at least one second add-on card;5) of at least one second form factor to the circuit board (1), and - a fastening device (6), wherein: - the first connector (2) has a lower height (H1) than the at least one second connector (3), and - the first connector (2) and the at least one second connector (3) are arranged on the circuit board (1) in such a way that the first add-on card (4) and the at least one second add-on card (5) can be fastened to the fastening device (6).
  2. 2. The circuit board (1) according to claim 1, wherein the fastening device (6) comprises a spacer bolt (14) which has an internal thread (19) on a side facing away from the circuit board (1).
  3. 3. The circuit board (1) according to one of claims 1 or 2, wherein the first connector (2) is a connector according to a first connection type, in particular according to standard M.2 KeyE, and the at least one second connector (3) is a connector according to at least one second connection type, in particular according to standard M.2 KeyM.
  4. 4. The circuit board (1) according to any one of claims 1 to 3, wherein an insertion direction into the first connector -16 - (2) is parallel to an insertion direction into the at least one second connector (3), and the first connector (2) is arranged on a line between the fastening device (6) and the at least one second connector (3).
  5. 5. The circuit board (1) according to any one of claims 1 to 4, wherein the first connector (2) is arranged at a smaller distance from the fastening device (6) on the circuit board (1) than the at least one second connector (3).
  6. 6. A computer device (9) comprising: - a circuit board (1) according to any one of claims 1 to 5, - a first add-on card (4) of a first form factor connected to the first connector (2), and/or - at least one second add-on card (5) of at least one second form factor connected to the at least one second connector (3), wherein: - the first add-on card (4) and/or the at least one second add-on card (5) are attached to the fastening device (6), and - the first add-on card (4) is arranged between the circuit board (1) and the at least one second add-on card (5).
  7. 7. The computer device (9) according to claim 6, wherein: - the first add-on card (4) has a shorter length from the first connector (2) towards the fastening device (6) than the at least one second add-on card (5) has from the at least one second connector (3) towards the fastening device (6).
  8. 8. The computer device (9) according to one of claims 6 or 7, wherein the first add-on card (4) and/or the at least one second add-on card (5) are each attached to the fastening -17 -device (6) with a side facing away from the first or the at least one second connector (3), respectively.
  9. 9. A connecting device (20), comprising: - a first portion (C), the first portion (C) having an external thread (22) adapted to be screwed into a fastening device (6) of a circuit board (1) according to any one of claims 1 to 5, and - a second portion (D), wherein the second portion (D) is arranged at an end of the connecting device (20) facing away from the first portion (C), and the connecting device (20) comprises an internal thread (24) on the second portion (D), and wherein the connecting device (20) further comprises a protruding part on the second portion (D) which is configured to engage in a recess on an add-on card.
GB2214641.9A 2021-10-20 2022-10-05 Circuit board, computer device, and connecting device Active GB2615382B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015077176A1 (en) * 2013-11-22 2015-05-28 Samtec, Inc. Two-piece unmate-assist standoff
US20170345803A1 (en) * 2016-05-24 2017-11-30 Intel Corporation Module stacking mechanism with integrated ground
US10264694B1 (en) * 2018-05-20 2019-04-16 Super Micro Computer Inc. Fastening device for stacking expansion cards

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10103466B1 (en) 2017-05-17 2018-10-16 General Electric Company Double-threaded connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015077176A1 (en) * 2013-11-22 2015-05-28 Samtec, Inc. Two-piece unmate-assist standoff
US20170345803A1 (en) * 2016-05-24 2017-11-30 Intel Corporation Module stacking mechanism with integrated ground
US10264694B1 (en) * 2018-05-20 2019-04-16 Super Micro Computer Inc. Fastening device for stacking expansion cards

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JP2023061919A (en) 2023-05-02
GB202214641D0 (en) 2022-11-16
DE102021127209A1 (en) 2023-04-20

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