Optical port expansion card

Abstract

The present invention provides an optical port expansion card. The optical port expansion card includes a main PCB board, a secondary PCB board, and an optical port connector module; the optical port connector module is installed at one end of the main PCB board, and a gold finger is provided at the other end of the main PCB board, and the gold finger is used for electrical connection to the main board; the secondary PCB board is fixedly installed on the main PCB board, and the secondary PCB board is electrically connected to the main PCB board; network chips are respectively provided on the secondary PCB board and the main PCB board, and a clock buffer is provided on the main PCB board; both network chips are electrically connected to the gold finger, the clock buffer, and the optical port connector module, and the clock buffer is electrically connected to the gold finger; several optical ports are provided on the optical port connector module, and the optical ports are used for electrical connection to external devices. Through the structural layout of the double-layer PCB board stacked up and down, the present invention has a smaller overall size, and has a larger number (up to eight optical ports can be set) of optical ports, can expand more external devices, and has a compact structure.

Description

Technical Field

[0001] The present invention relates to the field of computer expansion cards, and more particularly to an optical port expansion card. Background Art

[0002] A server, also known as a servo, is a type of computer that can provide computing services. Since a server needs to respond to service requests and process them, generally speaking, a server should have the ability to undertake services and ensure service quality. The composition of a server includes a processor, a hard disk, a memory, a system bus, etc., which is similar to the general computer architecture, but it runs faster, has a higher load, and is more expensive than an ordinary computer. A server provides computing or application services for other client machines (such as terminals like PCs (Personal Computers), smartphones, ATMs (Automated Teller Machines), and even large devices like train systems) in a network. A server has high-speed central processing unit (CPU) computing power, long-term reliable operation, strong input / output (I / O) external data throughput capacity, and better scalability.

[0003] A network security server is a dedicated server that can provide services such as centralized computing, information publishing, and data management for network users in a network environment. In this era of diverse electronic product technologies, network security servers have been quite mature. However, the layout structure of existing network security servers is relatively fixed. When users put forward new functional requirements, expansion cards need to be used in combination to meet the corresponding functions. Using an optical port (SFP) expansion card can expand external devices for a network security server, which has a great effect. However, although there are various existing optical port expansion cards, limited by the size of the expansion card, the number of optical ports is limited and more external devices cannot be expanded. Summary of the Invention

[0004] An object of the present invention is to provide an optical port expansion card, which is structurally compact, has a relatively small overall size, and has a relatively large number of optical ports, and can expand more external devices.

[0005] Another object of the present invention is to provide an optical port expansion card, which includes a main PCB board, an auxiliary PCB board, and an optical port connector module;

[0006] The optical port connector module is installed at one end of the main PCB board, and a gold finger is provided at the other end of the main PCB board, and the gold finger is used for electrical connection to the main board; the auxiliary PCB board is fixedly installed on the main PCB board, and the auxiliary PCB board is electrically connected to the main PCB board;

[0007] A network chip is respectively provided on the auxiliary PCB board and the main PCB board, and a clock buffer is provided on the main PCB board; both network chips are electrically connected to the gold finger, the clock buffer and the optical port connector module, and the clock buffer is electrically connected to the gold finger; several optical ports are provided on the optical port connector module, and the optical ports are used for electrically connecting external devices.

[0008] The auxiliary PCB board is located between the gold finger and the optical port connector module and is arranged at intervals with the main PCB board;

[0009] Several fixing studs are provided on the main PCB board, and several through holes are correspondingly provided on the auxiliary PCB board. Several screws respectively pass through the several through holes and are tightened on the several fixing studs to realize the fixed installation of the auxiliary PCB board.

[0010] The auxiliary PCB board is electrically connected to the main PCB board through two data connection lines; two first connection areas are correspondingly provided on the main PCB board, two second connection areas are correspondingly provided on the auxiliary PCB board, and two ends of the data connection line are respectively and correspondingly electrically connected to the first connection area and the second connection area.

[0011] A first fixing clip is provided around the first connection area, and a second fixing clip is provided around the second connection area; after two ends of the data connection line are respectively and correspondingly electrically connected to the first connection area and the second connection area, the first fixing clip is used to press one end of the data connection line, and the second fixing clip is used to press the other end of the data connection line.

[0012] The data connection line is an HDMI data line, and the first connection area and the second connection area are HDMI interface slots respectively adapted to two ends of the HDMI data line. After the HDMI data line is plugged into the HDMI interface slot, two screws respectively passing through two ends of the first fixing clip press and lock one end of the HDMI data line, and two screws respectively passing through two ends of the second fixing clip press and lock the other end of the HDMI data line.

[0013] The number of the optical ports is eight, and each network chip is electrically connected to four optical ports; the HDMI data line includes 40 wire cores.

[0014] Chip radiators covering the network chips are respectively provided on the auxiliary PCB board and the main PCB board.

[0015] The gold finger is a PCIE X8 gold finger.

[0016] The model of the network chip is Netcom Technology WX1860A4, and the model of the clock buffer is 9DBL411BKLFT of IDT Company, USA.

[0017] The length of the main PCB board is less than or equal to 158 mm, and the width is less than or equal to 75 mm; the distance between the auxiliary PCB board and the main PCB board is less than the height of the optical port connector module, and the total thickness of the optical port connector module and the main PCB board is less than or equal to 28.7 mm; the total length of the optical port expansion card is less than or equal to 162 mm, the total width is less than or equal to 75 mm, and the total thickness is less than or equal to 30 mm.

[0018] Advantages of the present invention: The present invention provides an optical port expansion card, including a main PCB board, an auxiliary PCB board, and an optical port connector module; the optical port connector module is installed at one end of the main PCB board, and a gold finger is provided at the other end of the main PCB board for electrically connecting to the main board; the auxiliary PCB board is fixedly installed on the main PCB board and is electrically connected to the main PCB board; network chips are respectively provided on the auxiliary PCB board and the main PCB board, and a clock buffer is provided on the main PCB board; both network chips are electrically connected to the gold finger, the clock buffer, and the optical port connector module, and the clock buffer is electrically connected to the gold finger; several optical ports are provided on the optical port connector module for electrically connecting to external devices. Through the structural layout of the double-layer PCB board stacked up and down, the present invention has a smaller overall size, and has a relatively large number (up to eight optical ports can be set) of optical ports, can expand more external devices, and has a compact structure. Description of the Drawings

[0019] In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only provided for reference and illustration purposes and are not used to limit the present invention.

[0020] In the drawings,

[0021] Figure 1 is a perspective view of the optical port expansion card of the present invention;

[0022] Figure 2 is an exploded view of the optical port expansion card of the present invention;

[0023] Figure 3 is a plan view of the front side (the side away from the main PCB board) of the auxiliary PCB board of the present invention;

[0024] Figure 4 is a plan view of the back side (the side close to the main PCB board) of the auxiliary PCB board of the present invention;

[0025] Figure 5 is a plan view of the front side (the side close to the auxiliary PCB board) of the main PCB board of the present invention;

[0026] Figure 6It is a plan view of the back side (the side away from the auxiliary PCB board) of the main PCB board of the present invention;

[0027] Figure 7 It is a principle block diagram of the optical port expansion card of the present invention;

[0028] Figure 8 and Figure 9 It is a schematic diagram showing the overall size of the optical port expansion card of the present invention. Specific embodiments

[0029] To further elaborate on the technical means and effects adopted by the present invention, the following will describe in detail in combination with the preferred embodiments of the present invention and their accompanying drawings.

[0030] Please refer to Figure 1 and Figure 2 , the present invention provides an optical port expansion card, including a main PCB (Printed Circuit Board) board 10, an auxiliary PCB board 20, and an optical port connector module 30.

[0031] The optical port connector module 30 is installed at one end of the main PCB board 10, and a gold finger 11 is provided at the other end of the main PCB board 10. The gold finger 11 is used for electrical connection to a main board (not shown). The auxiliary PCB board 20 is fixedly installed on the main PCB board 10, and the auxiliary PCB board 20 is electrically connected to the main PCB board 10.

[0032] As Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, network chips 60 are respectively provided on the auxiliary PCB board 20 and the main PCB board 10, and a clock buffer 12 is provided on the main PCB board 10; both network chips 60 are electrically connected to the gold finger 11, the clock buffer 12, and the optical port connector module 30, and the clock buffer 12 is electrically connected to the gold finger 11; several optical ports 31 are provided on the optical port connector module 30, and the optical ports 31 are used for electrical connection to external devices.

[0033] Specifically, the auxiliary PCB board 20 is located between the gold finger 11 and the optical port connector module 30 and is spaced from the main PCB board 10.

[0034] Several fixing studs 14 are provided on the main PCB board 10, and several through holes 24 are correspondingly provided on the auxiliary PCB board 20. The auxiliary PCB board 20 is fixedly installed by correspondingly passing several screws 40 through the several through holes 24 and tightening them on the several fixing studs 14 respectively.

[0035] Specifically, the auxiliary PCB board 20 is electrically connected to the main PCB board 10 through two data connection lines 50. Two first connection areas 13 are correspondingly provided on the main PCB board 10, and two second connection areas 23 are correspondingly provided on the auxiliary PCB board 20. Two ends of the data connection line 50 are respectively and correspondingly electrically connected to the first connection area 13 and the second connection area 23.

[0036] A first fixing clip 131 is provided around the first connection area 13, and a second fixing clip 231 is provided around the second connection area 23; after two ends of the data connection line 50 are respectively and correspondingly electrically connected to the first connection area 13 and the second connection area 23, the first fixing clip 131 is used to press one end of the data connection line 50, and the second fixing clip 231 is used to press the other end of the data connection line 50, so as to ensure the connection reliability of the data connection line 50 and prevent it from loosening easily.

[0037] Optionally, the number of the optical ports 31 is eight, the data connection line 50 is an HDMI (High Definition Multimedia Interface) data line, the HDMI data line includes 40 cores, and the first connection area 13 and the second connection area 23 are HDMI interface slots respectively adapted to two ends of the HDMI data line. After the HDMI data line is plugged into the HDMI interface slot, two screws 40 respectively passing through two ends of the first fixing clip 131 are used to press and lock one end of the HDMI data line, and two screws 40 respectively passing through two ends of the second fixing clip 231 are used to press and lock the other end of the HDMI data line.

[0038] Chip radiators 70 covering the network chips 60 are further respectively provided on the auxiliary PCB board 20 and the main PCB board 10, and the chip radiators 70 can be heat dissipation aluminum blocks.

[0039] The gold finger 11 is a PCIE (peripheral component interconnect express) X8 gold finger, which can be plugged into a motherboard with a PCIE X8 or PCIE X16 slot, and has good compatibility.

[0040] The network chip 60 is a domestic network chip, and the model can be selected as WX1860A4 of Netcom Technology. The model of the clock buffer 12 is 9DBL411BKLFT of American IDT Company.

[0041] Such as Figure 7As shown, when the optical port expansion card of the present invention is in use, it is electrically connected to the main board through the gold fingers 11. The main board provides PCIE signals and clock signals to the optical port expansion card. The clock signal (such as 100 MHz LVDS (Low Voltage Differential Signaling)) is divided into two paths by the clock buffer 12 and provided to the network chip 60 respectively. The network chip 60 transmits network signals to several optical ports 31 of the optical port connector module 30 through an Ethernet transceiver (PHY, the model of the Ethernet transceiver can be selected as Yutai Microelectronics YT8521SC-CA). Figure 7 Each network chip 60 in Figure 7 is electrically connected to four gigabit optical ports).

[0042] In the present invention, two PCB boards are stacked. While ensuring the number of optical ports (supporting eight optical ports), the overall size is relatively small. As Figure 8 and Figure 9 shown, the length A' of the main PCB board 10 is less than or equal to 158 mm, the width B is less than or equal to 75 mm, and the thickness C is 1.6 mm. The distance between the auxiliary PCB board 20 and the main PCB board 10 is less than the height of the optical port connector module 30. The total thickness D' of the optical port connector module 30 and the main PCB board 10 is less than or equal to 28.7 mm. Considering the height of the components on the auxiliary PCB board 20 and the main PCB board 10, the length that the optical ports 31 on the optical port connector module 30 protrude from the main PCB board 10, and the influence of errors, etc., the total length A of the optical port expansion card can be less than or equal to 162 mm, the total width (i.e., the width B of the main PCB board 10) is less than or equal to 75 mm, and the total thickness D is less than or equal to 30 mm.

[0043] In summary, the present invention provides an optical port expansion card, including a main PCB board, an auxiliary PCB board, and an optical port connector module; the optical port connector module is installed at one end of the main PCB board, and gold fingers are provided at the other end of the main PCB board, and the gold fingers are used for electrically connecting to the main board; the auxiliary PCB board is fixedly installed on the main PCB board, and the auxiliary PCB board is electrically connected to the main PCB board; network chips are respectively provided on the auxiliary PCB board and the main PCB board, and a clock buffer is provided on the main PCB board; both network chips are electrically connected to the gold fingers, the clock buffer, and the optical port connector module, and the clock buffer is electrically connected to the gold fingers; several optical ports are provided on the optical port connector module, and the optical ports are used for electrically connecting to external devices. Through the structural layout of the double-layer PCB board stacked up and down, the present invention has a relatively small overall size, and has a relatively large number of optical ports (up to eight optical ports can be set), can expand more external devices, and has a compact structure.

[0044] As mentioned above, for those of ordinary skill in the art, various corresponding changes and deformations can be made according to the technical solutions and technical concepts of the present invention, and all these changes and deformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. An optical port expansion card, characterized in that, it includes a main PCB board (10), a secondary PCB board (20), and an optical port connector module (30); The optical port connector module (30) is installed at one end of the main PCB board (10), and a gold finger (11) is provided at the other end of the main PCB board (10), and the gold finger (11) is used for electrical connection to the main board; the secondary PCB board (20) is fixedly installed on the main PCB board (10), and the secondary PCB board (20) is electrically connected to the main PCB board (10); Network chips (60) are respectively provided on the secondary PCB board (20) and the main PCB board (10), and a clock buffer (12) is provided on the main PCB board (10); both network chips (60) are electrically connected to the gold finger (11), the clock buffer (12), and the optical port connector module (30), and the clock buffer (12) is electrically connected to the gold finger (11); several optical ports (31) are provided on the optical port connector module (30), and the optical ports (31) are used for electrical connection to external devices; The secondary PCB board (20) is located between the gold finger (11) and the optical port connector module (30), and is spaced from the main PCB board (10); Several fixing studs (14) are provided on the main PCB board (10), and several through holes (24) are correspondingly provided on the secondary PCB board (20). Several screws (40) respectively pass through the several through holes (24) and are tightened on the several fixing studs (14) to realize the fixed installation of the secondary PCB board (20); The secondary PCB board (20) is electrically connected to the main PCB board (10) through two data connection lines (50); two first connection areas (13) are correspondingly provided on the main PCB board (10), and two second connection areas (23) are correspondingly provided on the secondary PCB board (20). The two ends of the data connection line (50) are respectively electrically connected to the first connection area (13) and the second connection area (23); A first fixing clip (131) is provided around the first connection area (13), and a second fixing clip (231) is provided around the second connection area (23); after the two ends of the data connection line (50) are respectively electrically connected to the first connection area (13) and the second connection area (23), the first fixing clip (131) is used to press one end of the data connection line (50), and the second fixing clip (231) is used to press the other end of the data connection line (50); The data connection line (50) is an HDMI data line, and the first connection area (13) and the second connection area (23) are HDMI interface slots respectively adapted to the two ends of the HDMI data line. After the HDMI data line is inserted into the HDMI interface slot, two screws (40) respectively passing through both ends of the first fixing clip (131) are used to press and lock one end of the HDMI data line, and two screws (40) respectively passing through both ends of the second fixing clip (231) are used to press and lock the other end of the HDMI data line.

2. The optical port expansion card according to claim 1, characterized in that, The number of the optical ports (31) is eight, and each network chip (60) is electrically connected to four optical ports (31); the HDMI data cable includes 40 cores.

3. The optical port expansion card according to claim 1, characterized in that chip radiators (70) covering the network chips (60) are respectively provided on the auxiliary PCB board (20) and the main PCB board (10).

4. The optical port expansion card according to claim 1, characterized in that the gold fingers (11) are PCIE X8 gold fingers.

5. The optical port expansion card according to claim 1, characterized in that the model of the network chip (60) is WX1860A4 of Netcom Technology, and the model of the clock buffer (12) is 9DBL411BKLFT of IDT Company of the United States.

6. The optical port expansion card according to claim 2, characterized in that the length (A’) of the main PCB board (10) is less than or equal to 158 mm, and the width (B) is less than or equal to 75 mm; the distance between the auxiliary PCB board (20) and the main PCB board (10) is less than the height of the optical port connector module (30), and the total thickness (D’) of the optical port connector module (30) and the main PCB board (10) is less than or equal to 28.7 mm; the total length (A) of the optical port expansion card is less than or equal to 162 mm, the total width is less than or equal to 75 mm, and the total thickness (D) is less than or equal to 30 mm.

Images