The present disclosure is related to an expansion card holder, particularly a M.2 expansion card holder.
An M.2 expansion card is a typical type of expansion card used in a host server. In general, the M.2 connector is arranged on a circuit board of in the host server, an edge of the M.2 expansion card is coupled with the M.2 connector and the M.2 expansion card is stacked on the circuit board, another edge of the M.2 expansion card is generally fixed on the circuit board by a screw bolt. Therefore, the conventional M.2 expansion card is inconvenient for installing.
Moreover, an M.2 connector is a general type connector, but conventional M.2 expansion cards have various sizes, are generally of a strip shape and have various length sizes. Therefore, a screw hole according to predetermined M.2 expansion card should be defined on a circuit board, and another expansion card with a different length size is incompatible.
In views of this, in order to solve the above disadvantages, the present inventor studied related technology and provided a reasonable and effective solution in the present disclosure.
An expansion card holder compatible with various sizes of expansion cards and various sizes of installation spaces is provided in the present disclosure.
An expansion card holder for fixing an expansion card on a circuit board is provided in the present disclosure. A connector is arranged on the circuit board, an end of the expansion card is coupled with the connector and the expansion card is stacked on the circuit board. The expansion card holder includes a carrier plate, a positioning buckle and a pressing block. The carrier plate is fixed on the circuit board, and multiple position holes arranged in a row are defined on the carrier plate. The positioning buckle is inserted in one of position holes and engaged with the circuit board. The pressing block is inserted in another one of the position holes and engaged with the expansion card.
According to the expansion card holder of the present disclosure, a couple of walls arranged at interval are formed on the pressing block, and the carrier plate is clamped by the couple of walls. The position hole is an elongated hole of a shape matched with the wall, the pressing block is inserted in the position hole and further twisted, and the carrier plate is thereby clamped by the couple of walls. A snapping hole nearby at least one of the position holes is defined on the carrier plate, a protruding block is arranged on one of the walls of the pressing block, and the protruding block is engaged with the snapping hole of the position hole containing the pressing block.
According to the expansion card holder of the present disclosure, the pressing block includes a shaft sleeve and a fixing rod, and the fixing rod is inserted in the shaft sleeve. The fixing rod is screw connected with the shaft sleeve. The pressing block including a connecting strip, two ends of the connecting strip are respectively connected with the shaft sleeve and the fixing rod, a folding groove is formed on the connecting strip and the folding groove is extended along a lateral direction of the connecting strip, a couple of reinforcing ribs are formed on the connecting strip at respective ends of the folding groove.
According to the expansion card holder of the present disclosure, a wall is formed on the positioning buckle and the wall is in contact with the carrier plate. The positioning buckle is inserted in the position hole and twisted, and the wall is thereby contacted with the carrier plate. A snapping hole adjacent to at least one of the position holes is defined on the carrier plate, a protruding block is protruded on the wall of the positioning buckle, and the protruding block is engaged with the snapping hole near by the position hole containing the positioning buckle. Multiple concave recesses are formed on the carrier plate and each position hole is formed at bottom of each recesses, the wall of the positioning buckle is received in corresponding recess.
According to the expansion card holder of the present disclosure, at least a supporting arm is extended from the positioning buckle. At least a broken-hole line is defined on the carrier plate, and the broken-hole line is extended along a lateral direction of the row of position holes. Multiple legs for raising the carrier plate are extended from the carrier plate. A leg for fixing the carrier plate is extended from the carrier plate.
The expansion card holder of the present disclosure has a carrier plate compatible with various sizes of expansion cards, and the expansion card is thereby fixed on a circuit board. Moreover, the expansion card holder of the present disclosure is also comp compatible with various installation spaces.
The present disclosure can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:
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In the present embodiment, the carrier plate 100 is preferably a plate of a strip shape, multiple position holes 101 are defined on the carrier plate 100, and these position holes 101 are arranges in a row along a longitudinal direction of the carrier plate 100. In the present embodiment, multiple rectangular position holes 101 and a circular position hole 101 are preferably defined on the carrier plate 100, but the number and the shape of the position holes 101 should not be limited by the present embodiment. A snapping hole 102 is preferably defined adjacent to each rectangular position hole 101. In the present embodiment, a snapping hole 102 is defined nearby each long side of each rectangular position hole 101, and the snapping hole 102 could be communicated with the position hole 101 or separated from the position hole 101. Multiple concave recesses 103 could be defined on the carrier plate 100 and the respective position holes 101 are formed at bottom of respective recesses 103, however, the present disclosure should not be limited by the present embodiment. Furthermore, at least a leg 110 is extended from the carrier plate 100, and the legs 110 are extended along the same direction perpendicular with the carrier plate 100.
The positioning buckle 200 is inserted in one of the position hole 101, and the pressing block 300 is inserted in another position hole 101.
The positioning buckle 200 has at least an arm latch 210, and a wall 220 and at least a supporting arm 230 are extended from a lateral surface of the arm latch 210. The arm latch 210 is inserted in one of position hole 101, at least a protruding block 221 is arranged protruding on the wall 220 of the positioning buckle 200. In the present embodiment, the positioning buckle 200 preferably has a couple of supporting arm 230 with the same structure and function, however, the number thereof should not be limited by the present embodiment, and the couple of supporting arm 230 could be inserted through the position hole 101 while the positioning buckle 200 is inserted in the position hole 101.
The pressing block 300 includes a shaft sleeve 310, a fixing rod 320 and a connecting strip 330, and respective ends of the connecting strip 330 are connected with the shaft sleeve 310 and the fixing rod 320. A couple of walls 340/350 are arranged at interval and protruding on a lateral surface of the shaft sleeve 310. In the present embodiment, at least one of the wall 350 is of a rectangular shape matching with the position hole 101, and the wall 350 thereby could be inserted through the position hole 101 while the shaft sleeve 310 is inserted in corresponding position hole 101. Moreover, at least a protruding block 341 is arranged protruding on one of the walls 340 of the pressing block 300. a folding groove 331 is formed on a middle segment of the connecting strip 330, the folding groove 331 is extended along a lateral direction of the connecting strip 330, and a couple of reinforcing ribs 332 protruding on the connecting strip 330 are respectively arranged at two ends of the folding groove 331.
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Accordingly, the expansion card holder of the present disclosure is compatible with various sizes of M.2 expansion cards 10 by the carrier plate 100 thereof, and able to fix M.2 expansion card 10 on the circuit board 20. Moreover, the expansion card holder of the present disclosure is further compatible with various installation spaces.
Detail structures of the carrier plate 100 should not be limited by embodiments of the present disclosure. For example, another embodiment of the carrier plate is shown in
Although the present disclosure has been described with reference to the foregoing preferred embodiment, it will be understood that the disclosure is not limited to the details thereof. Various equivalent variations and modifications can still occur to those skilled in this art in view of the teachings of the present disclosure. Thus, all such variations and equivalent modifications are also embraced within the scope of the present disclosure as defined in the appended claims.
Number | Date | Country | Kind |
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105219918 | Dec 2016 | TW | national |