CN2580500Y - Extending card fixing device - Google Patents

Abstract

The utility model relates to an extending card fixing device comprising a back plate, a fixed frame and a locked firmware. The back plate is provided with a couple of buckle bores and a folding plate which is used to support a holding plate of an extending card. The folding plate is provided with a fixing hole and the fixed frame comprises an anti-pressing board and a folding edge. The anti-pressing plate is provided with a fixing hole, and the folding edge is provided with a gap, a plurality of card bores and a couple of hooks which are matched with the buckled bores of the back plate. The locked firmware is provided with a plurality of card hooks, a salient post and an elastic plate. The card hooks are matched with the card bores of the fixed frame, and the salient post penetrates the fixing holes of the anti-pressing plate and the folding plate. The elastic plate of the locked firmware passes through the gap of the fixed frame and is abutted against the back plate. The anti-pressing plate of the fixed frame and the folding plate of the back plate clamp and fix the holding plate of the extending card. The extending card fixing device of the utility model has simple structure and no need to be locked and fixed by screws and realizes the free disassembly and assembly of an extending card.

Description

expansion card holder

【Technical field】

The utility model relates to an expansion card fixing device applied in a computer, in particular to an expansion card fixing device with simple structure and capable of quick disassembly and assembly.

【technical background】

The functions of most personal computers are limited by the configuration of the motherboard itself. In order to meet the increasingly powerful functional requirements of today's computers, some expansion cards such as sound cards and graphics accelerator cards are installed on the expansion slots of the motherboard to enhance its additional functions. function. After the expansion card is installed in the slot of the main board of the computer, the expansion card may fall off during the process of moving the computer or when the computer is subjected to an accidental impact, or the expansion card may loosen and shake and cause damage to the slot of the main board. or loose, the expansion card needs to be firmly fixed in the slot on the motherboard.

In the prior art, a substantially L-shaped holding piece is installed on one side edge of the expansion card. When the expansion card is inserted into the slot of the mainboard, the holding piece is locked on the rear board with a plurality of screws to achieve a stable fixation. The purpose of the expansion card.

However, during the process of manufacturing, assembling and maintaining the computer, installation or disassembly of the expansion card is involved. Repeatedly tightening and loosening the screws will waste a lot of time, or even cause inconvenience due to the loss of the screws. In the prior art, there is also a screwless structure to fix the expansion card, such as a fixing device disclosed in Chinese Patent Application No. 01227393.7. The fixing device has a cover plate and a fastening unit, and the cover plate is pivoted by a shaft On a rear board, the fastening unit buckles the cover board on the back board and presses the cover board onto the holding piece of the expansion card. However, the fixing device is composed of multiple individual components such as the cover plate, the pivoting shaft on the rear plate of the cover plate, and the buckling unit, which makes the cost of the whole fixing device relatively high, and the components are used together during the buckling process. It is easy to cause uncoordinated movements, which makes the fixing reliability not high.

【Content of invention】

The purpose of the utility model is to provide a fast disassembly, low cost and high reliability expansion card fixing device.

The purpose of the utility model is achieved through the following technical solutions: the expansion card fixing device of the utility model includes a rear plate, a fixing frame and a locking member. The rear plate is provided with a pair of button holes and a flap for supporting the holding piece of the expansion card, and the flap is provided with a fixing hole; the fixing frame includes a pressing plate and a folded edge, and the pressing plate is provided with a fixing hole , the flange is provided with a notch, a pair of clamping holes and a pair of clasps matched with the clasp holes of the back plate; The boss of the fixing hole of the pressing plate and the flap and an elastic piece; the elastic piece of the locking member passes through the gap of the fixing frame and abuts against the back plate, and the pressing plate of the fixing frame and the flap of the back plate are used to The holding piece of the expansion card is clamped and fixed.

The advantage of the expansion card fixing device of the utility model is that the expansion card fixing device of the utility model adopts the elastic locking method of the material itself, does not need to use screws for locking, has high reliability, and can realize the rapid assembly of the expansion card.

【Description of drawings】

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is a three-dimensional exploded view of the expansion card fixing device of the present invention.

Fig. 2 is another direction view of the three-dimensional exploded view of the expansion card fixing device of the present invention.

Fig. 3 is an enlarged perspective view of the lock piece of the expansion card fixing device of the present invention.

Fig. 4 is a three-dimensional combined view of the expansion card fixing device of the present invention.

Fig. 5 is another direction view of the three-dimensional combined view of the expansion card fixing device of the present invention.

【Detailed ways】

Please refer to Fig. 1 and Fig. 2, the expansion card fixing device of the present utility model is used for fixing the expansion cards 50 with L-shaped holding pieces 52 on the edges to the main board expansion slot (not shown) inside a computer case. , which includes a fixing frame 10 , a rear panel 20 and a locking piece 30 .

The fixing frame 10 is integrally formed, and includes a pressing plate 12 and a flange 16 vertically extending from the edge of the pressing plate 12 . A hole 120 is defined in the middle of the resisting plate 12 . A notch 162 is opened in the middle of the folded edge 16, and a pair of longer clasps 168 are punched at both ends, and a clamping hole 164 is respectively opened near the two ends of the side edge of the notch 162 near the pressure plate 12, and the notch 162 Two slots 166 are defined near the two ends of the opposite edge.

The rear plate 20 is provided with a window 21, and an edge of the window 21 extends vertically to the outside of the casing to form a flap 22, and the flap 22 is provided with a hole 220 corresponding to the hole 120 of the pressing plate 12 of the fixing frame 10. 22 is used for clamping and fixing the holding piece 52 of the expansion card 50 together with the pressing plate 12 . Two button holes 26 are defined near two ends of the opposite edge of the window 21 corresponding to the hooks 168 of the fixing frame 10 . The bottom of the rear board 20 is provided with a plurality of slots (not labeled), and these slots are used for passing one end of the holding piece 52 of the expansion card 50 to fix the end of the holding piece 52 .

Please refer to FIG. 1 to FIG. 3 together. The locking member 30 is integrally formed of a plastic material with good elasticity, and has a bottom wall 31 and four side walls 32, 33, 34, 35 extending vertically along the edge of the bottom wall 31. Wherein the side wall 32 vertically extends downward a protruding post 322, the protruding post 322 can cooperate with the fixing hole 120 of the fixing frame 10 and the fixing hole 220 of the flange 22 of the rear plate 20, and the edge of the side wall 34 is parallel A pair of protrusions 342 are extended, and the pair of protrusions 342 can be engaged in the slots 166 of the fixing frame 10 respectively. An arc-shaped elastic piece 36 extends from the bottom wall 31 along a direction approximately parallel to the side wall 32 and then bends and extends along a direction approximately parallel to the bottom wall 31. The free end of the elastic piece 36 finally points to the side wall 34. The free end of 36 is provided with a step 362 . Corresponding to the locking hole 164 of the fixing frame 10 , the locking member 30 further extends a pair of hooks 38 from the bottom wall 31 on both sides of the elastic piece 36 .

Please refer to Fig. 4 and Fig. 5, when assembling, first fasten the clasp 168 at the two ends of the flange 16 of the fixed frame 10 to the clasp hole 26 of the back plate 20, because the clasp 168 is longer, the clasp 168 is guaranteed Under the condition that 168 does not break away from the buckle hole 26, the fixed mount 10 can move a certain distance along the extension direction of the clasp 168; The flaps 22 of 20 are separated by a certain distance, and the holding piece 52 of the expansion card 50 to be fixed is placed between the folding piece 22 and the pressing plate 12, and one end of the holding piece 52 is inserted into the slot hole at the bottom of the rear plate 20 and then the end part is fixed; then the fixed frame 10 moves toward the holding piece 52 until the pressing plate 12 of the fixing frame 10 abuts against the holding piece 52, at this time, the fixing hole 120 of the pressing plate 12 is facing the flap 22 The hole 220 of the flange 16 of the fixing frame 10 corresponds to the window 21 of the rear panel 20; finally, the protrusion 322 of the locking member 30 is inserted into these facing fixing holes 120, 220, and toward the rear Press the locking member 30 in the direction of the plate 20, so that the hooks 38 are respectively snapped into the locking holes 164 of the fixing frame 10, a part of the arc-shaped elastic piece 36 passes through the gap 162 of the fixing bracket 10, and the step 362 of the elastic piece 36 elastically resists Press against the edge of the window 21 of the rear panel 20 , and at the same time, the protrusion 342 of the side wall 34 of the locking member 30 engages into the slot 166 of the flange 16 . By virtue of the elasticity of the elastic piece 36 against the pressing force of the rear plate 20, the locking member 30 provides a reaction force to press down the pressing plate 12 of the fixing frame 10, so that the holding piece 52 of the expansion card 50 is clamped and fixed. between the flap 22 and the pressing plate 12 .

When dismounting the expansion card 50, it is only necessary to push the hook 38 of the locking member 30 and the fixed frame 10 by hand to disengage it from the fixed frame 10, and then push the elastic piece 36 to disengage it from the rear plate 20 , so that the locking member 30 can be removed, and then under the condition that the clasp 168 is not separated from the button hole 26 of the rear plate 20, the fixed frame 10 is moved so that the pressing plate 12 of the fixed frame 10 is in contact with the rear plate. The flaps 22 of 20 are separated by a certain distance, so that the expansion card 50 can be disassembled smoothly.

Claims (5)

1. An expansion card fixing device, the expansion card is provided with a holding piece, the fixing device includes a back plate and a holding frame, the back plate is provided with a flap supporting the holding piece, it is characterized in that: the flap is set There is a fixing hole, the rear plate is provided with at least one pair of buttonholes, the fixing frame includes a pressing plate matched with the flap and a folded edge matched with the back plate, the pressing plate is provided with a fixing hole, the folded edge There are at least one pair of card holes and at least one pair of hooks matching with the button holes of the rear plate. The expansion card fixing device also includes a locking piece, and the locking piece includes an elastic piece, at least one pair of hooks matching with the hemming card holes. The hook and a post through the fixing hole of the pressing plate and the flap; wherein, the elastic piece abuts against the rear plate, and the pressing plate presses the holding piece of the expansion card against the on the flap of the rear panel. 2. The expansion card fixing device as claimed in claim 1, wherein a window is formed on the rear panel, and the folded edge extends outward from an edge of the window. 3. The expansion card fixing device according to claim 2, wherein the locking member includes a bottom wall and four side walls, the elastic piece is bent and extended from the bottom wall close to the side wall, and the end of the elastic piece point to the other opposite side wall. 4. The expansion card fixing device as claimed in claim 3, wherein a step is provided at the end of the elastic piece of the locking member, and the step elastically abuts against another opposite edge of the window. 5. The expansion card fixing device as claimed in claim 3, wherein a pair of slits are formed on the flange of the fixing frame, and a pair of slits and a pair of slits are formed on the side wall of the locking member pointed to by the shrapnel. Cooperate prominently.

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