CN200941209Y - Computer adapter card with dual link interface - Google Patents

Abstract

A computer adapting card with dual connection interfaces comprises a circuit board, the circuit board has a high-speed transmission card plug-in part, a Universal Serial Bus (USB) plug-in part, a control circuit, a converter, two USB signal lines and two DC power supply circuits, the two USB signal lines are electrically connected with the control circuit and respectively electrically connected with the high-speed transmission card plug-in part and the universal serial bus plug-in part, the two DC power supply circuits are electrically connected with the converter and respectively electrically connected with the high-speed transmission card plug-in part and the universal serial bus plug-in part, the control circuit is connected with one of the two DC power supply circuits according to the required DC voltage level, the other DC power supply circuit can convert the DC voltage level into the required DC voltage level by the control circuit through the converter, therefore, the computer adapter card can arbitrarily select one of the plug-in parts to transmit the USB signal with the computer system.

Description

Computer adapter card with dual link interface

technical field

The utility model relates to computer peripheral devices, in particular to a hot-swappable computer adapter card.

Background technique

With the rapid development of information technology, in order to meet the diversified use requirements of computer devices, in addition to the basic hardware equipment that needs to be built in the system itself, various peripheral components have also developed a variety of technologies, especially to meet the specifications of most computer systems , and external peripheral devices with hot-swappable functions, such as information transmission technologies such as wireless networks or Bluetooth technology, or micro-storage devices that are convenient for carrying and accessing data, etc., can all achieve the lightness and convenience required by information technology products , Practical and diversified functions, coupled with the popularization of computer systems such as desktops, notebook computers and personal digital assistants (PDAs), so the development of external peripheral devices that are compatible with various systems is more computer-friendly. Peripheral suppliers continue to develop and make breakthroughs.

In the case of Universal Serial Bus (USB), it is currently the mainstream technology for peripheral component connection interfaces. Peripheral devices with transmission interface specifications have been developed successively. The PCMCIA transmission interface specification developed on the PDA also launched a new high-speed transmission card (ExpressCard) specification in 2003. The combination of bus (USB) interface technology and high-speed peripheral component internal connection (PCIExpress) interface technology has both the broadband transmission of USB and the high-performance application characteristics of PCIExpress, and because the USB interface technology is USB2.0 high-speed transmission specification, It is backward compatible with the specifications of USE1.1 and USE1.0, so that ExpressCard can be compatible with general notebook computers and desktop computers, and realizes the serial bus interface of high-speed data transmission.

However, for desktop computers, ExpressCard cannot be directly connected to the exposed USB ports of ordinary computers, but can only be connected to the USE controller of the computer system through a specific card reader. The external card reader of the USE conversion interface is connected to the USB port of the computer system, and the computer system itself has a built-in card reader, and the hardware specification of the reading interface is compatible with ExpressCard. It can be used on desktop computers; however, the former method needs to be equipped with an additional card reader, and the latter needs to expand the hardware space of the computer system to install the card reader, which cannot be easily and effectively applied to the existing computer system; in addition, due to The ExpressCard interface specification stipulates that the computer system provides 1.5/3.3V DC power supply, which is different from the 5V DC power supply specification of the general USE interface. Therefore, the USB control chip in the ExpressCard can only be designed with a special 3.3V power supply and cannot be used. The types of control chips commonly used in USB peripheral components relatively limit the application range of ExpressCard.

Utility model content

Therefore, the main purpose of the utility model is to provide a computer adapter card with dual connection interfaces, which can simultaneously have the characteristics of a high-speed transmission card (ExpressCard) interface and a universal serial bus (USB) interface compatible with various computer systems .

In order to achieve the purpose of the foregoing disclosure, the utility model provides a computer adapter card with dual connection interfaces, which is characterized in that it includes;

a shell;

A high-speed transmission card (ExpressCard) socket and a universal serial bus socket; a circuit board, located in the housing, the circuit board is equipped with two universal serial bus signal lines, a first and a The second DC power supply circuit, the two universal serial bus signal lines are mutually coupled and electrically connected to the high-speed transmission card plug-in part and the universal serial bus plug-in part respectively, and the first DC power supply circuit is electrically connected to The high-speed transmission card socket part, the second DC power supply circuit is electrically connected to the USB socket part;

A converter, located on the circuit board, electrically connected to the second DC power supply circuit and the first DC power supply circuit, for converting the voltage level of the second DC power supply circuit to the first DC power supply the voltage level of the circuit; and,

A control circuit, located on the circuit board, has a universal serial bus signal terminal group and a power supply terminal group, the universal serial bus signal terminal group is electrically connected to the two universal serial bus signal lines, the power supply terminal group Electrically connected to the first DC power supply circuit.

Wherein the universal serial bus plug part is a universal serial bus plug.

Wherein the universal serial bus socket is a mini USB socket.

Wherein the universal serial bus plug part is a group of signal conductors containing universal serial bus interface signals, and the signal conductors are arranged on the circuit board.

Wherein the signal wire is exposed outside the casing.

Wherein the universal serial bus plug part is a universal serial bus terminal containing a universal serial bus interface signal, the universal serial bus terminal is electrically connected to a universal serial bus plug with a cable, the cable and the A USB plug is exposed outside the housing.

Wherein the casing is also provided with an accommodating groove, which is equivalent to the size of the universal serial bus plug, and the universal serial bus plug can be accommodated in the accommodating groove.

The beneficial effects of the utility model are:

Therefore, the computer adapter card of the dual connection interface can arbitrarily select one of the plugs to transmit USB signals between the computer system, and the ExpreCard plug uses a standard ExpressCard connector to be compatible with the ExpressCard slot on the computer, and The USB socket can be implemented in a variety of USB structures to enable connection to a variety of computer systems. If the DC power supply voltage level required by the control circuit is 3.3V, the power terminal group is electrically connected to the The first DC power supply circuit, the converter has the function of converting the voltage level (5V) of the second DC power supply circuit to the voltage level (3.3V) of the first DC power supply circuit, such as the control circuit The required DC power supply voltage level is 5V, then the power supply terminal group is electrically connected to the second DC power supply circuit, and the converter has the function of converting the voltage level (3.3V) of the first DC power supply circuit into the second DC power supply circuit The function of the voltage level (5V) of the two DC power supply circuits.

Description of drawings

Below, five preferred embodiments are enumerated in conjunction with several accompanying drawings, in order to further illustrate the constituent members and effects of the present utility model, wherein the brief description of the accompanying drawings used is as follows, wherein:

Fig. 1A is a schematic diagram of the appearance of the device of the first preferred embodiment of the present invention, showing the appearance of the high-speed transmission card insertion part;

FIG. 1B is a schematic diagram of the appearance of the device of the first preferred embodiment, showing the appearance of the universal serial bus plug;

Fig. 2 is a schematic diagram of setting of the circuit board provided by the above-mentioned first preferred embodiment;

Fig. 3 is a schematic diagram of the circuit function of the circuit board provided by the above-mentioned first preferred embodiment;

Fig. 4 is a schematic diagram of the circuit function of the control circuit provided by the above-mentioned first preferred embodiment;

Fig. 5 is a schematic diagram of the circuit function of the circuit board provided by the second preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of the circuit function of the control circuit provided by the second preferred embodiment;

Fig. 7 is a schematic diagram of the appearance of the device of the third preferred embodiment of the present invention, showing the appearance of the mini USB socket;

Fig. 8 is a schematic diagram of the appearance of the device of the fourth preferred embodiment of the present invention, showing the appearance of the signal wires laid out on the circuit board;

9 is a schematic diagram of the circuit device of the fifth preferred embodiment of the present invention, showing the appearance of the circuit in which the USB terminal is electrically connected to the USB plug;

Fig. 10 is a schematic diagram of the appearance of the device of the fifth preferred embodiment, showing the appearance of the USB plug;

FIG. 11 is a schematic diagram of the appearance of the device of the fifth preferred embodiment, showing the appearance of the USB plug accommodated in the housing groove.

Detailed ways

Please refer to FIG. 1 to FIG. 3 as shown in Figure 1, which is a computer adapter card 1 with a dual connection interface provided by the present invention, which includes a housing 10 and a circuit board 20 disposed in the housing 10, the circuit board 20 is provided with a high-speed transmission card (ExpressCard) plug-in portion 201, a universal serial bus (USB) plug-in portion 202, a converter 21, a control circuit 2, two USB signal lines 23,24, a first and A second DC power supply circuit 25, 26, wherein:

The ExpressCard socket 201 uses a standard ExpressCard connector for inserting into the ExpressCard slot of a notebook computer or a general computer system. Please refer to FIG. 3 . The ExpressCard socket 201 includes a USB signal terminal group 201a (D+, D−) and a power terminal group 201b (3.3V, GND), electrically connected to the USB signal line 23 and the first DC power circuit 25 respectively.

The USB socket 202 uses a standard USB plug for plugging into a USB connection port of a general computer system. Please refer to FIG. 3 , the USB socket 202 includes a USB signal terminal group (D+, D-) 202a and a power supply terminal group 202b (5V, GND), electrically connected to the USB signal line 24 and the second DC power supply circuit 26 respectively.

The converter 21 has a first and a second DC terminal group 211, 212, which are respectively electrically connected to the first and second DC power supply circuits 25, 26, and the converter 21 can be connected to the second DC power supply circuit 26. The delivered voltage level (5V) is converted into the delivered voltage level (33V) of the first DC power supply circuit 25, as the converter 21 used in this embodiment is the serial number XC6204 produced by TOREX Corporation of Japan. chip.

The control circuit 22 has a USB signal terminal group 22a (D+, D-) and a power terminal group 22b (V+, GND), respectively electrically connected to the two USB signal lines 23, 24 and the first DC power supply circuit 25 ; Please refer to shown in Figure 4, the control circuit 22 is a Bluetooth control circuit combined with a USB Bluetooth control chip, including an antenna (Antenna) 221 and a band pass filter (Band Pass Filter) that are electrically connected to each other in sequence 222, an output balance converter (TX Balun) 223, a USB bluetooth control chip 224, a memory 225 and an LED indicator light 226 electrically connected to the USB bluetooth control chip 224, wherein the USB bluetooth control chip 224 is to use the chip numbered BlueCore4 produced by British CSR Company, and its required DC power supply voltage level is 3.3V. The antenna 221 is to use a chip antenna (ChipAntenna) so as to be accommodated in the housing 10. When the control circuit 22 After obtaining the 3.3V driving power and the USB signal, it can provide the Bluetooth wireless communication function for the computer system to use.

Based on the above, it can be seen that when the computer adapter card 1 is used on a notebook computer, the ExpressCard socket 201 is inserted into the ExpressCard slot of the notebook computer, and the control circuit 22 passes through the first DC power supply. The circuit 25, the ExpressCard socket 201 and the ExpressCard slot of the notebook computer can obtain the required 3.3V power supply from the notebook computer, and through the USB signal line 23, the ExpressCard socket 201 and the notebook computer The ExpressCard slot is electrically connected to the USB main control interface in the notebook computer, so that the control circuit 22 and the central processing unit of the computer system can use USB signals to transmit data to each other; when the computer adapter card 1 is used in a general computer system , the USB socket 202 is plugged into the USB port of the computer system, and the USB port of the computer system provides a 5V DC power supply voltage, which is transmitted to the converter via the USB socket 202 and the second DC power supply circuit 26. Converter 21, the converter 21 converts the 5V DC power supply voltage to 3.3V, and provides it to the control circuit 22 through the first DC power supply circuit 25. And the USB port of the computer system enables the control circuit 22 and the central processing unit of the computer system to transmit data between the control circuit 22 and the central processing unit of the computer system, so that the computer adapter card 1 does not need to use an additional external or built-in card reader, It can be widely used in general computer systems with USB ports.

Please refer to Fig. 5, which is a circuit board 30 device of a computer adapter card 2 provided by the second preferred embodiment of the present invention. The difference with the circuit board 20 provided in the above-mentioned embodiment is that the converter 21 and the control circuit 22 are respectively replaced by a converter 31 and a control circuit 32, wherein;

The converter 31 has the function of converting the voltage level (3.3V) of the first DC power supply circuit 25 into the voltage level (5V) of the second DC power supply circuit 26. The converter used in this embodiment 31 is a chip numbered LM2621 produced by National Semiconductor.

The control circuit 32 has a USB signal terminal group (D+, D-) 32a and a power supply terminal group (V+, GND) 32b, respectively electrically connected to the two USB signal lines 23, 24 and the second DC power supply circuit 26; Please refer to shown in Figure 6, the control circuit 32 is a control circuit combined with a USB flash drive control chip, including a flash memory (Flash Memory) 321 electrically connected to each other, an LED indicator light 322 and a USB flash drive control chip 323 , wherein the USB flash drive control chip 323 is a chip numbered UT161 produced by Liansheng Semiconductor Company of China, and its required DC power supply voltage level is 5V, and the required power supply of the flash memory (Flash Memory) 321 is provided by the The built-in voltage converter of the USB flash drive control chip 323 provides after conversion. When the 5V power supply and the USB signal are provided to the control circuit 32, the control circuit 32 can provide the USB flash drive function for the computer system to use.

Based on the above, it can be seen that when the computer adapter card 2 is used on a notebook computer, that is, when the ExpressCard socket 201 is inserted into the ExpressCard slot of the notebook computer, the ExpressCard slot provided by the notebook computer The 3.3V power is transmitted to the converter 31 through the ExpressCard socket 201 and the first DC power supply circuit 25, and the converter 31 converts the 3.3V DC power supply voltage into a 5V DC power supply, The circuit 26 is provided for use by the control circuit 32, and the control circuit 32 is electrically connected to the USB main control interface in the notebook computer through the USB signal line 23, the ExpressCard socket 201 and the ExpressCard slot of the notebook computer , make use of USB signal between the control circuit 32 and the central processing unit of the computer system to transmit data; USB port, the 5V voltage DC power provided by the USB port of the computer system is transmitted to the control circuit 32 through the USB socket 202 and the second DC power supply circuit 26, and is connected to the USB signal line 24 and USB The USB port of the part 202 and the computer system enables the control circuit 32 and the central processing unit of the computer system to transmit data between the control circuit 32 and the central processing unit of the computer system, so that the computer adapter card 2 does not need to use an additional external or built-in card reader device, it can be widely used in general computer systems with USB ports.

It is worth mentioning that the computer adapter card provided by the utility model is not limited to the structural style of the outer casing and the USB plug-in part. 1. The USB socket 202 of the computer adapter card 1 protrudes from the overall device, so as shown in FIG. 7 , a computer adapter card 3 is provided in the third preferred embodiment of the present invention, A mini USB socket 301 is used to replace the USB socket of the above-mentioned first preferred embodiment, so that the computer adapter card 3 will not protrude from the overall device when it is inserted into the ExpressCard slot of the notebook computer. When the computer adapter card 3 is used in a USB port of a general computer system, an additional USB cable is required to connect the mini USB socket 301 with the USB port of the computer system.

In addition, referring to shown in Figure 8, a computer adapter card 4 is provided for the fourth preferred embodiment of the present utility model, with a group of signals containing USB interface signals (including VSUB, GND, D+, D-, etc. four lines) The wiring 401 is laid out and molded on a circuit board 40, replacing the USB socket 202 of the above-mentioned first preferred embodiment and having the same electrical function as that of the above-mentioned first preferred embodiment, so that the USB plug or socket can be saved, and the circuit is improved at the same time Board space utilization efficiency, also has the equivalent function application of USB plug.

In addition, referring to Fig. 9 to Fig. 11, a computer adapter card 5 is provided for the fifth preferred embodiment of the present utility model, with a USB interface signal (comprising four lines such as VSUB, GND, D+, and D-) The USB terminal 501 of the above-mentioned first preferred embodiment replaces the USB socket 202 of the above-mentioned first preferred embodiment, and the circuit board 20 is arranged in a housing 50, the USB terminal 501 is arranged on the circuit board 20, and is connected by a cable The cable 51 is electrically connected to a USB plug 52, the cable 51 and the USB plug 52 are exposed outside the casing 50, and the casing 50 is further provided with a receiving groove 502, which is equivalent to the size of the USB plug 52 , the USB plug 52 can be accommodated in the accommodating groove 502 .

Therefore, when the computer adapter card 5 is used on a notebook computer, the ExpressCard socket 201 is inserted into the ExpressCard slot of the notebook computer, and the USB plug 52 can be accommodated in the housing 50 accommodating groove. 502 will not be exposed, and when the computer adapter card 5 is used in a general computer system, the USB plug 52 can be pulled out from the accommodating groove 502, and then inserted into the USB port of the computer system, so the computer The adapter card 5 still has equivalent circuit functions, and has more aesthetic and safety considerations, which can prevent the USB plug 52 from being exposed outside the housing 50 and suffering from unnecessary impact and damage.

However, what is described above is only a preferred feasible embodiment of the utility model, so any equivalent structural changes made by applying the utility model description and the scope of the patent application should be included in the patent scope of the utility model.

Claims (7)

1. A computer adapter card with dual connection interfaces, characterized in that it comprises: a shell; A high-speed transmission card plug-in part and a universal serial bus plug-in part; a circuit board, located in the casing, the circuit board is provided with two universal serial bus signal lines, a first and a second DC The power supply circuit, the two universal serial bus signal lines are mutually coupled and electrically connected to the high-speed transmission card socket and the universal serial bus socket respectively, and the first DC power supply circuit is electrically connected to the high-speed transmission a card socket, the second DC power supply circuit is electrically connected to the universal serial bus socket; A converter, located on the circuit board, electrically connected to the second DC power supply circuit and the first DC power supply circuit, for converting the voltage level of the second DC power supply circuit to the first DC power supply the voltage level of the circuit; and, A control circuit, located on the circuit board, has a universal serial bus signal terminal group and a power supply terminal group, the universal serial bus signal terminal group is electrically connected to the two universal serial bus signal lines, the power supply terminal group Electrically connected to the first DC power supply circuit. 2. The computer adapter card with dual connection interface according to claim 1, wherein the USB plug is a USB plug. 3. The computer adapter card with dual ports according to claim 1, wherein the universal serial bus connector is a mini USB socket. 4. According to the computer adapter card with dual-connection interface described in claim 1, wherein the universal serial bus plug-in part is a group of signal wires containing universal serial bus interface signals, the signal wires are laid out on on this circuit board. 5. The computer adapter card with dual connection interface according to claim 4, wherein the signal wire is exposed outside the housing. 6. The computer adapter card according to claim 1, wherein the universal serial bus plug-in part is a universal serial bus terminal containing a universal serial bus interface signal, and the universal serial bus The row bus terminal is electrically connected to a USB plug with a cable, and the cable and the USB plug are exposed outside the casing. 7. The computer adapter card with dual-connection interface according to claim 6, wherein the casing is further provided with a receiving slot, which is equivalent to the size of the USB plug, and the USB The row bus plug can be accommodated in the accommodating groove.

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