TWI822526B - Rail module - Google Patents

Abstract

A rail module comprises two rails. Each of the rails has a bottom wall, a top wall and a side wall, which cooperate to define a chute relative to another rail. At least one of the rails further has a positioning structure which includes a resilient arm and a support arm. The resilient arm has a resilient section connected to the top wall, a limit block connected to the end of the resilient section and extending toward the bottom wall into the chute, and a pull section connected to the end of the resilient section on the opposite side of the limit block. The support arm has a main body connected to the top wall, and a support block connected to the main body close to the pull section. The support block is configured to support the pull section when the pull section is pulled to let the limit block leaving the chute such that the resilient arm is able to stay at an unlocked position.

Description

Slide rail module

The present invention relates to a slide rail module, and in particular, to a slide rail module that is arranged on a circuit board to fix an electronic card.

An existing electronic card, such as the OCP NIC 3.0 network card, is provided with positioning notches on its left and right edges. Generally, a slide rail module matching the electronic card is provided on the circuit board to facilitate the user to install the electronic card in a plug-in manner, and the positioning structure corresponding to the positioning notch on the slide rail module is used to lock the electronic card. To exit the electronic card from the slide rail module, the positioning structure needs to be unlocked first.

However, some of the existing positioning structures of slide rail modules require multiple parts, which makes the structure more complex and is not conducive to manufacturing and assembly; and some positioning structures are more inconvenient in the unlocking operation. Therefore, there is still room for improvement in how to make the overall structure of the positioning structure simpler and easier to lock and unlock the electronic card.

Therefore, one object of the present invention is to provide a slide rail module with a positioning structure that is simple in structure and easy to operate.

Therefore, in some embodiments, the slide rail module of the present invention is suitable for being disposed on a circuit board to fix an electronic card with positioning notches on both sides. The slide rail module includes two guide rails, each guide rail It has a bottom wall, a top wall and a side wall connecting the bottom wall and the top wall. The bottom wall, the top wall and the side wall are jointly defined relative to another guide rail for accommodating the side edge of the electronic card and along a A slide groove extends in the sliding direction, in which at least one guide rail also has a positioning structure. The positioning structure includes an elastic arm and a supporting arm. The elastic arm has an elastic section, a limiting block and a pulling section. One end of the elastic segment is connected to the top wall and extends along the sliding direction, and has a connecting end connected to the top wall and a free end opposite to the connecting end. The limiting block is connected to the elastic segment adjacent to the free end and protrudes toward the bottom wall and extends into the slide groove to be clamped in the positioning notch. The pulling section is connected to the elastic section adjacent to the free end and is located on the opposite side of the limiting block. The top wall forms a broken section to make way for the elastic arm. The support arm has a main body and a support block. The main body is connected to the top wall, and the support block is connected to the main body and close to the pull section, and is used to support the pull section when the pull section is pulled to make the limit block leave the chute in a release position, Position the elastic arm in the unlocking position.

In some embodiments, the pulling section has a first inclined surface, and the support block has a second inclined surface matching the first inclined surface, so that when the pulling section is pulled to the unlocking position, the third inclined surface An inclined surface and the second inclined surface can slide relative to each other.

In some embodiments, the pulling section has a longitudinal portion perpendicularly connected to the elastic section and extending in a direction away from the bottom wall, a transverse portion perpendicularly connected to the longitudinal portion and extending in a direction away from the connecting end, and A force-receiving portion extends obliquely from the transverse portion in a direction away from the bottom wall and the connecting end portion. The transverse portion is used to abut against the support block in the unlocking position.

In some embodiments, the main body has a connecting portion vertically connected to the top wall, and a cantilever portion extending from the connecting portion along the sliding direction and located above the side wall, and the support block is connected to the cantilever portion and relative to the cantilever portion. adjacent to an end of the cantilever portion away from the connecting portion.

In some implementations, the cantilever portion has an inner side facing the other guide rail, and the support block protrudes from the inner side.

In some embodiments, the cantilever portion also has a plurality of anti-slip ridges protruding from the inner surface, and the anti-slip ridges are located above the support block.

In some embodiments, the pull section also has a first slope formed on the transverse portion, the support block protrudes from the inner side in a wedge shape, and has a second slope matching the first slope, and A supporting surface is located above the second inclined surface, so that the first inclined surface and the second inclined surface can slide relative to each other when the pulling section is pulled to the unlocking position, and the transverse portion is in the unlocking position. against the support surface.

In some embodiments, each guide rail also has a plurality of fixing parts extending from the bottom wall in a direction opposite to the other guide rail for on-board assembly or plying. assembled on the circuit board.

In some implementations, the limiting block has a guide slope toward the entrance of the chute, for the electronic card to move the limit block toward the release slot along the guide slope during insertion into the chute. The lock position moves in the direction.

The invention has the following effects: the positioning structure is integrally connected to the top wall, and the overall structure is simple and easy to manufacture, and can be easily operated when inserting and withdrawing the electronic card without using tools.

1: Guide rail

11: Bottom wall

12: Top wall

121: Disconnect segment

13:Side wall

14:Chute

15: Fixed part

2: Positioning structure

21:Elastic arm

211: Elastic segment

211a: Connect the end

211b: free end

212:Limit block

212a: Guide slope

213: Pull section

213a: Longitudinal part

213b: Transverse part

213c: Force-receiving part

213d: first slope

22:Support arm

221:Subject

221a:Connection part

221b: Cantilever part

221c: medial surface

221d: Anti-slip ridges

222:Support block

222a: Second slope

222b: Support surface

A:Circuit board

A’: circuit board

B: Electronic card

B1: Positioning notch

D: sliding direction

S: screw

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a first embodiment of the slide rail module of the present invention installed on a circuit board for electronic card insertion. An exploded perspective view of the first embodiment; Figure 2 is a perspective view of the first embodiment plugged into the electronic card; Figure 3 is a perspective view of the first embodiment installed on the circuit board; Figure 4 is a perspective exploded view corresponding to Figure 3 Figure; Figure 5 is a perspective view of a guide rail of the first embodiment; Figure 6 is a cross-sectional view taken along the VI-VI section line in Figure 5; Figure 7 is an elastic arm of the guide rail when it is unlocked A perspective view of the position; Figure 8 is a cross-sectional view taken along the VIII-VIII section line in Figure 7; Figure 9 is a perspective view of a second embodiment of the slide rail module of the present invention, which is installed on a circuit board with a gap in the form of a splint assembly for electronic card insertion; Figure 10 is a view of the second embodiment without the electronic card being plugged in. A three-dimensional view of the card; and Figure 11 is a three-dimensional view corresponding to Figure 10 from another perspective.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated with the same numbering.

Referring to Figures 1 and 2, a first embodiment of the slide rail module of the present invention is suitable for being disposed on a circuit board A to fix an electronic card B having positioning notches B1 on both sides. The slide rail module Contains two rails1.

Referring to Figures 3 to 5, each guide rail 1 has a bottom wall 11, a top wall 12 and a side wall 13 connecting the bottom wall 11 and the top wall 12. The bottom wall 11, the top wall 12 and the side wall 13 Together, a slide slot 14 is defined relative to another guide rail 1 for accommodating the side edge of the electronic card B and extending along a sliding direction D. Each guide rail 1 also has a plurality of fixing parts 15 and a positioning structure 2 . The fixing parts 15 extend from the bottom wall 11 in a direction opposite to the other guide rail 1 for board assembly or clamping assembly on the circuit board A. Specifically, the fixing parts 15 are provided with screw holes for screws S to be locked and fixed to the circuit board A. In the first embodiment, the guide rails 1 are assembled on the circuit board A in the form of on-board assembly, and the form of plywood assembly will be described in the second embodiment below.

Referring to FIGS. 5 and 6 , the positioning structure 2 includes an elastic arm 21 and a support arm 22 . The top wall 12 forms a broken section 121 to make way for the elastic arm 21 .

The elastic arm 21 has an elastic section 211 , a limiting block 212 and a pulling section 213 . One end of the elastic segment 211 is connected to the top wall 12 and extends along the sliding direction D. It has a connecting end 211a connected to the top wall 12 and a free end 211b opposite to the connecting end 211a. The limiting block 212 is connected to the elastic section 211 adjacent to the free end 211b and protrudes toward the bottom wall 11 and is used to engage in the positioning notch B1 (see Figure 1). The limiting block 212 has a guide slope 212a facing the entrance of the chute 14 . The pulling section 213 is connected to the elastic section 211 adjacent to the free end 211b and on the opposite side of the limiting block 212, and has a longitudinal section 213a vertically connected to the elastic section 211 and extending in a direction away from the bottom wall 11 , a transverse portion 213b that is vertically connected to the longitudinal portion 213a and extends in a direction away from the connecting end portion 211a, and a force-receiving portion 213c that obliquely extends from the transverse portion 213b in a direction away from the bottom wall 11 and the connecting end portion 211a. , and a first slope 213d formed on the transverse portion 213b. In the normal state, the elastic section 211 of the elastic arm 21 keeps extending linearly along the sliding direction D, and the limiting block 212 extends into the slide groove 14 so that the elastic arm 21 is in a locking position.

The support arm 22 has a main body 221 and a support block 222 . The main body 221 is connected to the top wall 12 and has a connecting portion 221a vertically connected to the top wall 12, and a cantilever portion 221b extending from the connecting portion 221a along the sliding direction D and located above the side wall 13. The cantilever portion 221b has an inner side 221c facing the other guide rail 1, and A plurality of anti-slip ridges 221d protrude from the inner surface 221c. The support block 222 is connected to the main body 221 and is close to the pulling section 213 . Specifically, the support block 222 is wedge-shaped and protrudes from the inner side 221c and is located below the anti-slip ridges 221d, and has a second inclined surface 222a matching the first inclined surface 213d, and is located on the second inclined surface 222a. An upper supporting surface 222b.

Referring to Figures 7 and 8, the user can exert force on the pulling section 213 to pull the elastic arm 21 upward, so that the transverse portion 213b passes over the supporting block 222 and abuts against the supporting surface 222b, so as to The support block 222 supports the pulling section 213 to position the elastic arm 21 at a release position where the limiting block 212 leaves the slide groove 14 . When the pulling section 213 is pulled to the unlocking position, the first inclined surface 213d and the second inclined surface 222a can slide relative to each other, so that the transverse portion 213b can easily pass over the supporting block 222. When the elastic arm 21 is positioned at the unlocking position, it is convenient for the user to take out the electronic card B. To return the elastic arm 21 to the locking position, the user can apply force on the anti-slip protrusions 221d and pull the support arm 22 outward, so that the support block 222 exits below the transverse portion 213b. At this time, the lower part of the pulling section 213 is not blocked by the supporting block 222, and can be returned to its original position by the elastic restoring force of the elastic section 211.

Referring again to Figures 1 and 2, under normal conditions, the elastic arms 21 of the positioning structures 2 of the guide rails 1 are in the locking position. After the user inserts the electronic card B into the chute 14, the electronic card B moves along the This sliding direction moves in D. When the front edge of the electronic card B touches the guide slopes 212a of the limiting blocks 212 (see FIG. 5), the electronic card B can be moved along the guide slopes 212a. Push the limit blocks 212 upward (towards the unlocking position) until the positions of the positioning notches B1 are aligned with the limit blocks 212 , the limit blocks 212 are reset and extend into the locking positions respectively. The positioning notch B1 blocks the electronic card B from moving in the sliding direction D. When wanting to exit the electronic card B from the guide rails 1, the user only needs to pull the elastic arms 21 to the unlocking position (as shown in Figure 7), and the electronic card B can be easily taken out. After the electronic card B is taken out, the elastic arms 21 are returned to the locking position, so that the electronic card B can be inserted and locked again. The operation process is simple and convenient. In the first embodiment, each guide rail 1 has the positioning structure 2, which can lock the electronic card B more firmly. However, it is understandable that only one of the guide rails 1 has the positioning structure 2, and this can also be achieved. Lock the function of electronic card B. In the first embodiment, each guide rail 1 is formed in one piece, and the positioning structure 2 is directly connected to the top wall 12. Not only is the overall structure simple and easy to manufacture, but it can also be used to insert and eject the electronic card B. Easy to operate at all times, no tools required.

Referring to Figures 9 to 11, a second embodiment of the slide rail module of the present invention is substantially the same as the first embodiment. The difference is that in the second embodiment, the guide rails 1 are installed on the grooves with notches. Circuit board A' is in the form of a plywood assembly. The fixed parts 15 of the guide rails 1 are against the lower surface of the circuit board A' and are located under the board.

To sum up, each guide rail 1 is formed in one piece, and the positioning structure 2 is integrally connected with the top wall 12. Not only is the overall structure simple and easy to manufacture, but it can also be easily operated when inserting and ejecting the electronic card B. , no tools required.

However, the above are only embodiments of the present invention and should not be used as examples. Limiting the implementation scope of the present invention, any simple equivalent changes and modifications made based on the patent application scope of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

1: Guide rail

11: Bottom wall

12: Top wall

121: Disconnect segment

13:Side wall

14:Chute

15: Fixed part

2: Positioning structure

21:Elastic arm

211: Elastic segment

211a: Connect the end

211b: free end

212:Limit block

212a: Guide slope

213: Pull section

213a: Longitudinal part

213b: Transverse part

213c: Force-receiving part

213d: first slope

22:Support arm

221:Subject

221a:Connection part

221b: Cantilever part

221c: medial surface

221d: Anti-slip ridges

222:Support block

222a: Second slope

222b: Support surface

D: sliding direction

Claims (9)

A slide rail module is suitable for being disposed on a circuit board to fix an electronic card with positioning notches on both sides. The slide rail module includes: Two guide rails, each guide rail has a bottom wall, a top wall and a side wall connecting the bottom wall and the top wall, the bottom wall, the top wall and the side wall jointly define relative to the other guide rail for receiving the A slide groove extends along the side edge of the electronic card along a sliding direction. At least one guide rail also has a positioning structure. The positioning structure includes An elastic arm has an elastic section, a limiting block and a pulling section. One end of the elastic section is connected to the top wall and extends along the sliding direction, and has a connecting end connected to the top wall and opposite to the top wall. A free end of the connecting end, the limiting block is connected to the elastic segment adjacent to the free end and protrudes toward the bottom wall and extends into the chute to be clamped in the positioning notch, and the pull A section connects the elastic section adjacent to the free end and is located on the opposite side of the limiting block, the top wall forms a broken section to make way for the elastic arm, and A support arm has a main body and a support block. The main body is connected to the top wall. The support block is connected to the main body and close to the pull section, and is used to pull the limit block away from the slide when the pull section is pulled. A release position of the slot supports the pull section so that the elastic arm is positioned in the release position. The slide rail module of claim 1, wherein the pull section has a first slope, and the support block has a second slope matching the first slope, so that the push section is pulled to the release position. During the positioning process, the first inclined surface and the second inclined surface can slide relative to each other. The slide rail module according to claim 1, wherein the pull section has a longitudinal portion vertically connected to the elastic section and extending in a direction away from the bottom wall, and a longitudinal portion vertically connected to the longitudinal portion and extending in a direction away from the connecting end. A transverse part, and a force-receiving part extending obliquely from the transverse part in a direction away from the bottom wall and the connecting end, the transverse part is used to abut the support block in the unlocking position. The slide rail module of claim 3, wherein the main body has a connecting portion vertically connected to the top wall, and a cantilever portion extending from the connecting portion along the sliding direction and located above the side wall, and the support block is connected At the cantilever portion and adjacent to an end of the cantilever portion away from the connecting portion. The slide rail module of claim 4, wherein the cantilever portion has an inner side facing the other guide rail, and the support block protrudes from the inner side. The slide rail module of claim 5, wherein the cantilever portion also has a plurality of anti-slip ridges protruding from the inner side, and the anti-slip ridges are located above the support block. The slide rail module of claim 5, wherein the pull section also has a first slope formed on the transverse portion, the support block protrudes from the inner side in a wedge shape, and has a first slope matching the first slope. A second inclined surface, and a support surface located above the second inclined surface, enable the first inclined surface and the second inclined surface to slide relative to each other when the pulling section is pulled to the unlocking position, and the first inclined surface and the second inclined surface can slide relative to each other during the release period. The transverse portion abuts against the supporting surface when in the locked position. The slide rail module of claim 1, wherein each guide rail also has a plurality of fixing parts extending from the bottom wall in the opposite direction to the other guide rail for assembly on the board or assembly of the plywood on the slide rail module. circuit board. The slide rail module according to claim 1, wherein the limiting block has a guide slope toward the entrance of the chute for the electronic card to be inserted along the guide slope during insertion into the chute. The limit block moves toward the unlocking position.

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