Expansion card

Abstract

An expansion card comprises a circuit board body, two elastic sheets and a plurality of connecting structures. The circuit board body comprises a body part and a clamping hook connecting part. The clamping hook connecting part is provided with a connecting area and a clamping hook area. The connecting area is located between the body part and the clamping hook area. The clamping hook area extends outwards from one side of the body part. The elastic sheet is arranged on the clamping hook connecting part of the circuit board body and covers a first surface and a second surface of the clamping hook connecting part, wherein the first surface and the second surface are opposite to each other. The connecting structure penetrates through the elastic piece and the clamping hook connecting part and is located in the clamping hook area. And the elastic sheet and the circuit board body are fixed through a connecting structure.

Description

Technical Field

[0001] The invention relates to a board card, and in particular to an expansion card. Background Art

[0002] Existing display adapters become heavier after being assembled. When used by users, they are affected by external forces or stress, which may easily lead to the breakage of the hooks (or small ears) next to the gold fingers and the failure of nearby memory chips, thereby causing the entire display adapter to be scrapped. Summary of the invention

[0003] The invention provides an expansion card which has better structural reliability.

[0004] The expansion card of the present invention includes a circuit board body, two elastic sheets and a plurality of connection structures. The circuit board body includes a main body and a hook connection part. The hook connection part has a connection area and a hook area. The connection area is located between the main body and the hook area. The hook area extends outward from one side of the main body. The elastic sheet is arranged on the hook connection part of the circuit board body, and covers a first surface and a second surface of the hook connection part which are opposite to each other. The connection structure passes through the elastic sheet and the hook connection part, and is located in the hook area. The elastic sheet and the circuit board body are fixed by the connection structure.

[0005] In an embodiment of the present invention, the material of each of the elastic sheets includes gold, silver, copper, iron, aluminum, tin, nickel, lead, zinc or alloys of the above metals.

[0006] In one embodiment of the present invention, each of the above-mentioned connection structures includes a through hole and a connection material. The through hole passes through the elastic sheet and the hook connection portion, and the connection material fills the through hole to connect the elastic sheet and the circuit board body.

[0007] In an embodiment of the present invention, the connection material includes tin, lead or resin.

[0008] In one embodiment of the present invention, the aperture of the through hole is a certain value, or the aperture of the through hole gradually decreases from one of the two elastic sheets to the other of the two elastic sheets.

[0009] In an embodiment of the present invention, the expansion card further includes two solder resist layers covering an upper surface and a lower surface of the main body of the circuit board body that are opposite to each other, the elastic sheet, and the connection structure.

[0010] In one embodiment of the present invention, the connection area of ​​the hook connection portion and the main body portion is a circular arc surface.

[0011] In an embodiment of the present invention, each of the elastic sheets is conformally disposed with the hook connection portion.

[0012] In an embodiment of the present invention, the circuit board body further comprises a connection interface, which is disposed on one side of the main body and has a notch between the connection interface and the hook connection portion.

[0013] In one embodiment of the present invention, the hook area of ​​the hook connection portion is a region without a circuit layout.

[0014] Based on the above, in the design of the expansion card of the present invention, the elastic sheet is arranged on the hook connection part of the circuit board body and covers the first surface and the second surface of the hook connection part which are opposite to each other, and the connection structure located in the hook area penetrates the elastic sheet and the hook connection part to fix the elastic sheet and the circuit board body. With this design, the structural strength of the hook connection part of the circuit board body can be increased, and the stability of the hook area of ​​the hook connection part when the subsequent buckle fastener is buckled can be improved, which can effectively improve the quality of the expansion card. In short, the expansion card of the present invention can have better structural reliability.

[0015] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional top view schematic diagram of an expansion card according to an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 A partially exploded diagram of the expansion card.

[0018] Figure 3 yes Figure 1 A partial top view of an expansion card.

[0019] Figure 4 yes Figure 1 A partial cross-sectional diagram of an expansion card.

[0020] Figure 5 It is a partial cross-sectional schematic diagram of an expansion card according to another embodiment of the present invention.

[0021] Wherein, the reference numerals are:

[0022] 100a, 100b: expansion card

[0023] 110: Circuit board body

[0024] 112: Ontology Department

[0025] 114: Hook connection

[0026] 115: Connection Zone

[0027] 117: Hook Area

[0028] 118: Connection interface

[0029] 120, 130: elastic sheet

[0030] 140a, 140b: connection structure

[0031] 142a, 142b: Through hole

[0032] 144: Connecting materials

[0033] 150, 160: solder mask

[0034] 170: Processor

[0035] 180: Chip

[0036] A1: Upper surface

[0037] A2: Lower surface

[0038] C: Connection

[0039] E: One side

[0040] S1: First surface

[0041] S2: Second surface

[0042] T: Notch DETAILED DESCRIPTION

[0043] The embodiments of the present invention can be understood in conjunction with the drawings, which are also considered part of the disclosure. It should be understood that the drawings of the present invention are not drawn to scale, and in fact, the size of the components may be arbitrarily enlarged or reduced to clearly show the features of the present invention.

[0044] Figure 1 It is a three-dimensional top view schematic diagram of an expansion card according to an embodiment of the present invention. Figure 2 yes Figure 1 A partially exploded diagram of the expansion card. Figure 3 yes Figure 1 A partial top view of an expansion card. Figure 4 yes Figure 1 A partial cross-sectional diagram of an expansion card.

[0045] Please also refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the expansion card 100a includes a circuit board body 110, two elastic sheets 120, 130 and a plurality of connection structures 140a. The circuit board body 110 includes a main body 112 and a hook connection portion 114. The hook connection portion 114 has a connection area 115 and a hook area 117. The connection area 115 is located between the main body 112 and the hook area 117. The hook area 117 extends outward from a side E of the main body 112. The elastic sheets 120, 130 are disposed on the hook connection portion 114 of the circuit board body 110, and cover a first surface S1 and a second surface S2 of the hook connection portion 114 that are opposite to each other. The connection structure 140a penetrates the elastic sheets 120, 130 and the hook connection portion 114, and is located in the hook area 117. The elastic sheets 120, 130 and the circuit board body 110 are fixed by the connection structure 140a.

[0046] Specifically, in this embodiment, the expansion card 100a is, for example, a display adapter, but is not limited thereto. The circuit board body 110 is, for example, an inner structural layer of a printed circuit board, wherein the connection area 115 of the main body 112 and the hook connection portion 114 is an area with a circuit layout, and the hook area 117 of the hook connection portion 114 is an area without a circuit layout. Furthermore, the circuit board body 110 of this embodiment further includes a connection interface 118, which is disposed on one side E of the main body 112, and has a notch T between the connection interface 118 and the hook connection portion 114. Here, the connection interface 118 is, for example, a gold finger, and the expansion card 100a can be inserted into a connector (not shown) through the connection interface 118.

[0047] Please refer to Figure 1 and Figure 2 In this embodiment, the connection area 115 of the hook connection portion 114 and the connection point C of the main body portion 112 is an arc surface, which can effectively disperse stress. Here, the elastic sheets 120, 130 and the hook connection portion 114 are specifically arranged conformally, that is, the elastic sheets 120, 130 and the hook connection portion 114 have the same shape. In one embodiment, the material of the elastic sheets 120, 130 can be, for example, gold, silver, copper, iron, aluminum, tin, nickel, lead, zinc or alloys of the above metals.

[0048] Next, please refer to Figure 3 and Figure 4 In this embodiment, each connection structure 140a includes a through hole 142a and a connection material 144. The through hole 142a penetrates the elastic sheet 120, 130 and the hook connection portion 114 of the circuit board body 110, and the connection material 144 fills the through hole 142a to connect the elastic sheet 120, 130 and the circuit board body 110. Here, the aperture of the through hole 142a is, for example, a certain value, but is not limited thereto. In another embodiment, please refer to Figure 5In the structure of the expansion card 100b, the aperture of the through hole 142b of the connection structure 140b may gradually decrease from the elastic sheet 120 to the elastic sheet 130. In an embodiment not shown, the aperture of the through hole of the connection structure may gradually increase from one of the two elastic sheets to the other of the two elastic sheets; or, the aperture of the through hole of the connection structure in the two elastic sheets is larger than the aperture in the circuit board body, all of which belong to the scope of protection of the present invention.

[0049] Furthermore, the connection material 144 of the connection structure 140a may be, for example, tin, lead or resin. In one embodiment, when the connection material 144 is a metal material, such as tin or lead, the connection structure 140a only has a fixing function, which can enhance the structural strength of the hook connection portion 114. In another embodiment, when the connection material 144 is a resin, the connection structure 140a may have a heat dissipation function.

[0050] In addition, please also refer to Figure 1 and Figure 4 The expansion card 100a of this embodiment further includes two solder resist layers 150 and 160, which cover an upper surface A1 and a lower surface A2 of the main body 112 of the circuit board body 110, elastic sheets 120 and 130, and a connecting structure 140a, so as to protect the circuit board body 110, the elastic sheets 120 and 130, and the connecting structure 140a. In addition, the expansion card 100a of this embodiment further includes a processor 170 and a plurality of chips 180, wherein the processor 170 and the chip 180 are disposed on the main body 112 of the circuit board body 110, and the chip 180 is located next to the processor 170. Here, the processor 170 may be, for example, a central processing unit, and the chip 180 may be, for example, a memory chip, but is not limited thereto.

[0051] Since the expansion cards 100a and 100b of the present embodiment are provided with elastic sheets 120 and 130 on the hook connection portion 114 of the circuit board body 110, and the elastic sheets 120 and 130 are connected to the circuit board body 110 through the connection structures 140a and 140b located in the hook area 117, the structural strength of the hook connection portion 114 can be increased to avoid the occurrence of undesirable phenomena such as the breakage of the hook connection portion 114 and the damage of the nearby chip 180, thereby improving the quality of the expansion cards 100a and 100b. In addition, through the above-mentioned design, when the hook area 115 of the hook connection portion 114 is subsequently buckled with a fastener, it can have better stability. In short, the expansion cards 100a and 100b of the present embodiment can have better structural reliability.

[0052] In summary, in the design of the expansion card of the present invention, the elastic sheet is disposed on the hook connection portion of the circuit board body and covers the first surface and the second surface of the hook connection portion that are opposite to each other, and the connection structure located in the hook area penetrates the elastic sheet and the hook connection portion to fix the elastic sheet and the circuit board body. With this design, the structural strength of the hook connection portion of the circuit board body can be increased, and the stability of the hook area of ​​the hook connection portion when the subsequent buckle fastener is buckled can be improved, which can effectively improve the quality of the expansion card. In short, the expansion card of the present invention can have better structural reliability.

[0053] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person having ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.

Claims

1. An expansion card, characterized in that: include: A circuit board body, comprising a main body and a hook connection portion, the hook connection portion having a connection area and a hook area, the connection area is located between the main body and the hook area, and the hook area extends outward from one side of the main body; Two elastic sheets are disposed on the hook connection portion of the circuit board body and cover a first surface and a second surface of the hook connection portion which are opposite to each other; as well as A plurality of connection structures penetrate the elastic sheet and the hook connection portion and are located in the hook area. The elastic sheet and the circuit board body are fixed by the connection structures.

2. The expansion card as claimed in claim 1, wherein: The material of each elastic sheet includes gold, silver, copper, iron, aluminum, tin, nickel, lead, zinc or alloys of the above metals.

3. The expansion card as claimed in claim 1, wherein: Each of the connection structures includes a through hole and a connection material. The through hole passes through the elastic sheet and the hook connection portion, and the connection material fills the through hole to connect the elastic sheet and the circuit board body.

4. The expansion card as claimed in claim 3, wherein: The connecting material includes tin, lead or resin.

5. The expansion card as claimed in claim 3, wherein: The aperture of the through hole is a certain value, or the aperture of the through hole gradually decreases from one of the elastic sheets to the other of the elastic sheets.

6. The expansion card as claimed in claim 1, wherein: Also includes: Two solder mask layers cover an upper surface and a lower surface of the main body of the circuit board body that are opposite to each other, the elastic sheet and the connection structure.

7. The expansion card as claimed in claim 1, wherein: The connection area of ​​the hook connection portion and the main body portion is a circular arc surface.

8. The expansion card as claimed in claim 7, wherein: Each of the elastic sheets is conformally arranged with the hook connection portion.

9. The expansion card as claimed in claim 1, wherein: The circuit board body also includes a connection interface, which is disposed on one side of the main body and has a notch between the circuit board body and the hook connection portion.

10. The expansion card as claimed in claim 1, wherein: The hook area of ​​the hook connection portion is an area without a circuit layout.

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