Expansion card retaining device and circuit board module

Abstract

The application provides an expansion card fixing device and a circuit board module. The expansion card fixing device is suitable for being arranged beside a slot, so that the hook portion of the expansion card is fixed when the insertion portion of the expansion card is inserted into the slot. The expansion card fixing device comprises a fixing base, a rotating shell and an elastic member. The rotating shell is rotatably arranged on the fixing base and comprises a pressure receiving portion and a limiting portion which are connected to each other. The elastic member is arranged between the fixing base and the rotating shell. The rotating shell is pushed by the elastic member and is normally located at a lifting position. When the hook portion of the expansion card pushes the pressure receiving portion and makes the rotating shell rotate relative to the fixing base, the limiting portion rotates to the upper side of the hook portion and limits the hook portion. At this time, the rotating shell is located at a fixed position and the elastic member accumulates elastic force. When the expansion card is pulled out of the slot obliquely, the hook portion is separated from the lower side of the limiting portion, the pressure receiving portion is not pushed by the hook portion, the elastic member releases the elastic force, and the rotating shell returns to the lifting position. Therefore, the expansion card fixing device can easily fix the expansion card.

Description

Technical Field

[0001] This utility model relates to an expansion card fixing device and circuit board module, and more particularly to an expansion card fixing device and circuit board module that can easily and effectively fix an expansion card. Background Technology

[0002] With the advancement of technology, the use of expansion cards has become quite common, such as PCI-E interface graphics cards. How to easily and securely fix the expansion card when it is inserted into the connector slot is a research goal in this field. Utility Model Content

[0003] This case relates to an expansion card securing device that can easily and reliably secure expansion cards.

[0004] According to an embodiment of this invention, an expansion card fixing device is suitable for placement beside a slot to fix the hook portion of the expansion card when it is inserted into the slot. The expansion card fixing device includes a fixing base, a rotating housing, and an elastic member. The rotating housing is rotatably mounted on the fixing base and includes a pressure-receiving part and a limiting part that are linked to each other. The elastic member is disposed between the fixing base and the rotating housing, and the rotating housing is normally in a raised position due to the push of the elastic member. When the hook portion of the expansion card presses against the pressure-receiving part, causing the rotating housing to rotate relative to the fixing base, the limiting part rotates above the hook portion and limits the hook portion. At this time, the rotating housing is in a fixed position, and the elastic member accumulates elastic force. When the expansion card is tilted and pulled out of the slot, the hook portion moves away from below the limiting part, the pressure-receiving part is no longer pushed by the hook portion, the elastic member releases its elastic force, and the rotating housing returns to the raised position.

[0005] In the expansion card fixing device according to an embodiment of the present invention, the rotating housing includes two guide walls and a guide groove formed between the two guide walls, the pressure-bearing part is located at the bottom of the guide groove, and the guide groove is configured to guide the hook of the expansion card.

[0006] In the expansion card fixing device according to an embodiment of the present invention, the guide groove includes an expanded opening away from the pressure-bearing portion, and the hook portion enters the guide groove from the expanded opening.

[0007] In the expansion card fixing device according to the embodiment of this case, the expansion card fixing device further includes a pivot, the main body of the fixing seat includes a first pivot hole and a stop surface located next to the first pivot hole, the rotating shell includes a second pivot hole, the pivot passes through the first pivot hole and the second pivot hole, the elastic member is sleeved on the first pivot hole, the first end of the elastic member abuts against the stop surface, and the second end of the elastic member abuts against the inner wall surface of the rotating shell.

[0008] In the expansion card fixing device according to an embodiment of the present invention, the fixing base includes a main body and a base extending below the main body, a rotating outer shell covering the main body, and the base includes a first segment and a second segment, the second segment being located between the first segment and the main body, and the size of the second segment being larger than the size of the first segment.

[0009] In the expansion card fixing device according to an embodiment of the present invention, the fixing base includes an anti-rotation portion protruding from the side of the base.

[0010] According to an embodiment of this invention, a circuit board module suitable for connecting an expansion card includes a circuit board and an expansion card fixing device. The circuit board includes a slot configured for inserting a connector of the expansion card. The expansion card fixing device is disposed on the circuit board and located next to the slot. The expansion card fixing device is configured to fix the hook portion of the expansion card. When the expansion card is not inserted into the slot, the lower edge of the rotating housing of the expansion card fixing device normally has a non-zero angle with the circuit board.

[0011] In the expansion card fixing device according to the embodiment of this case, the circuit board includes a first side, a second side, and a mounting hole recessed in the first side and penetrating the second side. The fixing base includes a main body and a base extending below the main body. The base includes a first segment and a second segment. The second segment is located between the first segment and the main body. The size of the second segment is larger than that of the first segment. The first segment is located in the mounting hole, and the second segment protrudes from the first side.

[0012] In the expansion card fixing device according to an embodiment of the present invention, the fixing base includes an anti-rotation part protruding from the side of the base, and the circuit board includes a limiting recess recessed in the first surface and communicating with the mounting hole, the anti-rotation part being located in the limiting recess.

[0013] In the expansion card fixing device according to an embodiment of the present invention, the circuit board module further includes a locking device that is fixed to the base from the second side through a mounting hole.

[0014] Based on the above, the rotating housing of the expansion card fixing device of this invention is rotatably mounted on the fixing base, and includes a pressure-receiving part and a limiting part that are linked to each other. An elastic member is disposed between the fixing base and the rotating housing. The rotating housing is pushed by the elastic member and is normally in the lifted position. When the hook of the expansion card presses against the pressure-receiving part, causing the rotating housing to rotate relative to the fixing base, the limiting part rotates above the hook and limits the hook. At this time, the rotating housing is in the fixed position, and the elastic member accumulates elastic force. When the expansion card is tilted and pulled out of the slot, the hook moves away from below the limiting part, the pressure-receiving part is no longer pushed by the hook, the elastic member releases its elastic force, and the rotating housing returns to the lifted position. Therefore, the expansion card fixing device of this invention can easily and reliably fix the expansion card. Attached Figure Description

[0015] Figure 1This is a schematic diagram of a circuit board module according to an embodiment of this case;

[0016] Figure 2 and Figure 3 yes Figure 1 The explosions from different angles of the expansion card fixing device were intentional;

[0017] Figure 4 The expansion card's hook will press against it. Figure 1 A schematic diagram of the pressure-bearing part;

[0018] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0019] Figure 6 The expansion card's hook was... Figure 1 A schematic diagram of the limiting part;

[0020] Figure 7 yes Figure 6 A magnified view of a portion of the image;

[0021] Figure 8 This is a diagram showing the left end of the expansion card being pulled up;

[0022] Figure 9 yes Figure 8 A magnified view of a portion of the image.

[0023] Explanation of icon numbers

[0024] 10: Expansion Card;

[0025] 12: Connector;

[0026] 14: Hook;

[0027] 20: Circuit board module;

[0028] 30: Circuit board;

[0029] 32: First page;

[0030] 34: Second page;

[0031] 36: Mounting holes;

[0032] 38: Limiting notch;

[0033] 39: Slot;

[0034] 40: Locking hardware;

[0035] 100: Expansion card fixing device;

[0036] 110: Fixed base;

[0037] 111: Main body;

[0038] 112: First pivot hole;

[0039] 113: Stop surface;

[0040] 114: Base;

[0041] 115: First paragraph;

[0042] 116: Second paragraph;

[0043] 117: Anti-transfer unit;

[0044] 120: Rotating outer shell;

[0045] 121: Pressure-bearing part;

[0046] 122: Limiting part;

[0047] 123: Guide wall;

[0048] 124: Guide groove;

[0049] 125: Expand the opening;

[0050] 126: Second pivot hole;

[0051] 130: Elastic component;

[0052] 132: First end;

[0053] 134: Second end;

[0054] 140: Pivot. Detailed Implementation

[0055] Reference will now be made in detail to exemplary embodiments of this invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals are used in the drawings and description to denote the same or similar parts.

[0056] Figure 1 This is a schematic diagram of a circuit board module according to an embodiment of the present invention. Figure 2 and Figure 3 yes Figure 1 The explosions from different angles of the expansion card fixing device were intentional. Figure 4 The expansion card's hook will press against it. Figure 1 A schematic diagram of the pressure-bearing part. Figure 5 yes Figure 4 A magnified view of a portion of the image. Figure 6 The expansion card's hook was... Figure 1 A schematic diagram of the limiting part. Figure 7 yes Figure 6 A magnified view of a portion of the image. Figure 8 This is a diagram showing the left end of the expansion card being pulled up. Figure 9 yes Figure 8 A magnified view of a portion of the image.

[0057] Please see Figures 1 to 9 In this embodiment, the circuit board module 20 is suitable for supplying expansion card 10 ( Figure 4 The circuit board module 20 in this embodiment includes a circuit board 30 and an expansion card fixing device 100. The circuit board 30 includes a slot 39, which is configured for the insertion part 12 of the expansion card 10 to be inserted. In this embodiment, the circuit board 30 is, for example, a motherboard, the slot 39 is, for example, a PCI-E interface slot, and the expansion card 10 is, for example, a PCI-E graphics card, but the types of circuit board 30, slot 39, and expansion card 10 are not limited thereto.

[0058] Expansion card holder 100 is disposed on circuit board 30 and located next to slot 39, and expansion card holder 100 is configured to hold expansion card 10. Figure 4 The hook part 14. Specifically, such as Figure 2 As shown, the expansion card fixing device 100 of this embodiment includes a fixing base 110, a rotating housing 120, and an elastic element 130.

[0059] In this embodiment, the fixing base 110 includes a main body 111 and a base 114 extending from below the main body 111. The rotating outer shell 120 covers the main body 111. The base 114 includes a first segment 115 and a second segment 116. The second segment 116 is located between the first segment 115 and the main body 111. The size of the second segment 116 is larger than the size of the first segment 115.

[0060] The circuit board 30 includes a first surface 32, a second surface 34, and a mounting hole 36 recessed in the first surface 32 and extending through the second surface 34. In this embodiment, the first segment 115 of the substrate 114 is located within the mounting hole 36, and as shown... Figure 5 As shown, the second segment 116 of the base 114 protrudes from the first surface 32. Furthermore, as... Figure 2 As shown, the circuit board module 20 also includes a locking fastener 40, which is fixed to the base 114 from the second side 34 through the mounting hole 36.

[0061] Additionally, the mounting base 110 includes an anti-rotation portion 117 protruding from the side of the base 114, and the circuit board 30 includes a limiting recess 38 recessed in the first surface 32 and communicating with the mounting hole 36. In this embodiment, the mounting hole 36 is a circular hole, and the limiting recess 38 is a structure recessed from the edge of the mounting hole 36. The anti-rotation portion 117 and the limiting recess 38 are shaped and correspond to each other. The anti-rotation portion 117 is located in the limiting recess 38, which allows the base 114 of the mounting base 110 to be securely fixed on the circuit board 30 without rotation.

[0062] Therefore, the base 114 of the mounting bracket 110, through the step difference between the second segment 116 and the first segment 115, allows the mounting bracket 110 to rest on the first surface 32 of the circuit board 30. The nut of the fastener 40 is larger than the size of the mounting hole 36 and is locked to the base 114, thus fixing the mounting bracket 110 along the normal direction of the circuit board 30. Furthermore, due to the shape matching between the anti-rotation part 117 and the limiting recess 38, the mounting bracket 110 will not rotate relative to the circuit board 30. Therefore, the mounting bracket 110 can be securely fixed to the circuit board 30.

[0063] like Figure 2 As shown, the rotating housing 120 is rotatably mounted on the fixed base 110. Specifically, the expansion card fixing device 100 also includes a pivot 140. The main body 111 of the fixed base 110 includes a first pivot hole 112, and the rotating housing 120 includes a second pivot hole 126. The pivot 140 passes through the first pivot hole 112 and the second pivot hole 126, so that the rotating housing 120 can rotate relative to the fixed base 110 about the pivot 140.

[0064] In addition, the rotating housing 120 includes a pressure-receiving part 121 and a limiting part 122 that are linked to each other. The pressure-receiving part 121 is used to press against the hook 14 of the expansion card 10, thereby causing the rotating housing 120 to rotate, and the limiting part 122 is used to restrict the upward movement of the hook 14 of the expansion card 10, thereby fixing the hook 14 of the expansion card 10.

[0065] like Figure 3 As shown, in this embodiment, the rotating housing 120 may optionally include two guide walls 123 and a guide groove 124 formed between the two guide walls 123. The pressure-receiving portion 121 is located at the bottom of the guide groove 124, and the guide groove 124 is configured to guide the hook portion 14 of the expansion card 10. In this embodiment, the guide groove 124 also includes an enlarged opening 125 away from the pressure-receiving portion 121, and the hook portion 14 enters the guide groove 124 through the enlarged opening 125.

[0066] Therefore, during the process of inserting the expansion card 10 into the slot 39, the hook 14 of the expansion card 10 will enter the guide groove 124 from the flared opening 125. This design ensures that the hook 14 of the expansion card 10 will not be tilted, but can smoothly contact the pressure part 121, so as to ensure that the hook 14 of the expansion card 10 can press against the pressure part 121, thereby causing the rotating housing 120 to rotate.

[0067] Furthermore, the elastic element 130 is disposed between the fixed base 110 and the rotating housing 120. In this embodiment, the main body 111 of the fixed base 110 includes a stop surface 113 located next to the first pivot hole 112, the elastic element 130 is sleeved on the first pivot hole 112, the first end 132 of the elastic element 130 abuts against the stop surface 113, and the second end 134 of the elastic element 130 abuts against the inner wall surface of the rotating housing 120.

[0068] like Figure 1 As shown, when the expansion card 10 is not inserted into the slot 39, the rotating housing 120 is pushed by the elastic member 130 and is normally in the lifted position. That is to say, the lower edge of the rotating housing 120 of the expansion card fixing device 100 normally has a non-zero angle with the circuit board 30.

[0069] like Figures 4 to 7 As shown, when the hook 14 of the expansion card 10 presses against the pressure-receiving part 121 of the rotating housing 120, causing the rotating housing 120 to rotate relative to the fixed base 110, the limiting part 122 of the rotating housing 120 rotates to above the hook 14 of the expansion card 10, thus limiting the hook 14 of the expansion card 10. At this time, the rotating housing 120 is in a fixed position. Figure 7 ), and the expansion card 10 can be easily and well fixed.

[0070] To remove expansion card 10, such as Figures 8 to 9 As shown, the left side of the expansion card 10 is first moved upward, causing the expansion card 10 to tilt so that the hook 14 of the expansion card 10 can gradually move away from below the limiting part 122. Since the elastic member 130 accumulates elastic force when the rotating housing 120 is in the fixed position, when the expansion card 10 is tilted and pulled out of the slot 39, the hook 14 moves away from below the limiting part 122, the pressure part 121 is no longer pushed by the hook 14, and the elastic member 130 releases its elastic force, causing the rotating housing 120 to return to the lifted position (as shown). Figure 4 and Figure 5 (Position). Therefore, the expansion card 10 can be easily removed from the expansion card holder 100.

[0071] Based on the above, the rotating housing of the expansion card fixing device of this invention is rotatably mounted on the fixing base, and includes a pressure-receiving part and a limiting part that are linked to each other. An elastic member is disposed between the fixing base and the rotating housing. The rotating housing is pushed by the elastic member and is normally in the lifted position. When the hook of the expansion card presses against the pressure-receiving part, causing the rotating housing to rotate relative to the fixing base, the limiting part rotates above the hook and limits the hook. At this time, the rotating housing is in the fixed position, and the elastic member accumulates elastic force. When the expansion card is tilted and pulled out of the slot, the hook moves away from below the limiting part, the pressure-receiving part is no longer pushed by the hook, the elastic member releases its elastic force, and the rotating housing returns to the lifted position. Therefore, the expansion card fixing device of this invention can easily and reliably fix the expansion card.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this case, and not to limit them; although this case has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this case.

Claims

1. An expansion card fixing device, suitable for being disposed beside a slot, so that when the insertion portion of the expansion card is inserted into the slot, it fixes the hook portion of the expansion card, characterized in that, The expansion card fixing device includes: Fixed base; A rotating housing, rotatably mounted on the fixed base, includes a pressure-receiving part and a limiting part that are interconnected; and An elastic element is disposed between the fixed base and the rotating housing. The rotating housing is pushed by the elastic element and is normally in the lifted position. When the hook portion of the expansion card presses against the pressure-receiving portion, causing the rotating housing to rotate relative to the fixed base, the limiting portion rotates above the hook portion, thus limiting the hook portion. At this time, the rotating housing is in a fixed position, and the elastic element accumulates elastic force. When the expansion card is tilted and pulled out of the slot, the hook moves away from below the limiting part, the pressure part is not pushed by the hook, the elastic member releases the elastic force, and the rotating housing returns to the lifted position.

2. The expansion card retaining device of claim 1, wherein, The rotating housing includes two guide walls and a guide groove formed between the two guide walls. The pressure-bearing part is located at the bottom of the guide groove, and the guide groove is configured to guide the hook of the expansion card.

3. The expansion card retaining device of claim 2, wherein, The guide groove includes an expanded opening away from the pressure-bearing part, and the hook enters the guide groove from the expanded opening.

4. The expansion card retaining device of claim 1, wherein, It also includes a pivot, the main body of the fixed seat includes a first pivot hole and a stop surface located next to the first pivot hole, the rotating housing includes a second pivot hole, the pivot passes through the first pivot hole and the second pivot hole, the elastic element is sleeved on the first pivot hole, the first end of the elastic element abuts against the stop surface, and the second end of the elastic element abuts against the inner wall surface of the rotating housing.

5. The expansion card retaining device of claim 1, wherein, The mounting base includes a main body and a base extending below the main body. The rotating housing covers the main body. The base includes a first segment and a second segment, the second segment being located between the first segment and the main body, and the size of the second segment being larger than the size of the first segment.

6. The expansion card retaining device of claim 5, wherein, The mounting base includes an anti-rotation portion protruding from the side of the base.

7. A circuit board module adapted for connection of an expansion card, characterized in that include: A circuit board, including a slot configured for insertion of the expansion card's connector; as well as The expansion card fixing device as described in any one of claims 1 to 4 is disposed on the circuit board and located next to the slot, and the expansion card fixing device is configured to fix the hook portion of the expansion card. When the expansion card is not inserted into the slot, the lower edge of the rotating housing of the expansion card fixing device normally has a non-zero angle with the circuit board.

8. The circuit board module of claim 7, wherein, The circuit board includes a first surface, a second surface, and a mounting hole recessed in the first surface and penetrating the second surface. The mounting base includes a main body and a base extending below the main body. The base includes a first segment and a second segment. The second segment is located between the first segment and the main body. The size of the second segment is larger than that of the first segment. The first segment is located inside the mounting hole, and the second segment protrudes from the first surface.

9. The circuit board module of claim 8, wherein, The mounting base includes an anti-rotation portion protruding from the side of the base, and the circuit board includes a limiting recess recessed in the first surface and communicating with the mounting hole, with the anti-rotation portion located in the limiting recess.

10. The circuit board module of claim 8, wherein, Also included is a locking fastener secured to the base from the second face, through the mounting hole.

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