High-speed bus expansion device based on magnetic attraction
By designing a high-speed bus expansion device based on magnetic suction, the magnetic suction module and positioning locking device are used to realize the stable interconnection of a portable computer and PCIE high-speed bus docking station, the problem of PCIE bus interconnect stability in harsh environments is solved, and efficient and stable bus expansion and rapid disassembly and assembly are achieved.
Patent Information
- Application Number
- CN202411611749.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-02-25
AI Technical Summary
The prior art is difficult to achieve stable interconnection between a portable computer and a PCIE high-speed bus dock in harsh environments, and the user experience is poor, which cannot meet the long-term use needs.
A high-speed bus expansion device based on magnetic suction is designed, and the access power-on and separation of the portable computer and the PCIE high-speed bus dock are realized through the first magnetic suction module and the second magnetic suction module, and the positioning locking device is combined to achieve rapid disassembly and assembly and stable connection.
It realizes the PCIE high-speed bus technology for portable computers in harsh environments, and the stable interconnection of portable computers and docking station dual-machine PCIE buses. It has the characteristics of easy disassembly and assembly, high stability, and fast interconnection and communication speed, meeting the application needs of harsh environments.
Smart Images
Figure CN119518349A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of computer control, and in particular relates to a high-speed bus expansion device based on magnetic attraction. Background Art
[0002] Regarding the demand for expanding the PCIE interface board of portable computers, although the direct expansion inside the whole machine is the best solution, due to the heat dissipation of the whole machine, the external dimensions and the uncertainty of the PCIE expansion demand, there is still a lot of market demand for external expansion of PCIE high-speed expansion docks for portable computers. Regarding the key technology of realizing the interconnection between the host and the expansion dock based on the PCIE high-speed bus in harsh environments, the solution using interconnection cables is stable in structure and simple in implementation, but the frequent transfers affect the stability of the PCIE bus, and repeated plugging and unplugging of the interconnection cables will cause poor user experience, so it cannot be the first choice of solution; using the high-speed printed circuit board connector interconnection solution, although the PCIE bus can normally identify PCIE2.0 and the link is stable, the service life of the printed circuit board connector is short and cannot meet the long-term use needs. At the same time, there is an interconnection gap in the host after the two machines are separated, and the user experience is poor. Summary of the invention
[0003] 1. Technical issues to be resolved
[0004] The technical problem to be solved by the present invention is: to design a high-speed bus expansion device based on magnetic attraction, to realize the external expansion of PCIE high-speed bus technology of portable computers in harsh environments, and the stable interconnection technology of PCIE buses of portable computers and expansion docks, and its functional performance, general quality characteristics and electromagnetic compatibility all meet the application requirements of resistance to harsh environments.
[0005] (II) Technical solution
[0006] In order to solve the above technical problems, the present invention provides a high-speed bus expansion device based on magnetic attraction, comprising a portable computer, a first magnetic attraction module, a second magnetic attraction module, a positioning locking device, and a PCIE high-speed bus expansion dock; wherein the first magnetic attraction module is embedded in the bottom of the portable computer to realize the lead-out of the mainboard PCIE2.0×4 signal and DC12V power supply of the portable computer; the second magnetic attraction module is embedded in the top of the PCIE high-speed bus expansion dock to realize the introduction of the mainboard PCIE2.0×4 signal and DC12V power supply; the first magnetic attraction module and the second magnetic attraction module are used in pairs to realize connection power-on and separation power-off; a positioning locking device is used between the portable computer and the PCIE high-speed bus expansion dock to realize the fixed positioning and disassembly of the two.
[0007] The invention also provides a working method of the device.
[0008] (III) Beneficial effects
[0009] The device of the present invention realizes the external expansion of PCIE high-speed bus technology of portable computers in harsh environments, and the stable interconnection technology of dual PCIE buses of portable computers and expansion docks. The device is composed of a portable computer, a magnetic suction module, a positioning and locking device, and a PCIE high-speed bus expansion dock. The high-speed bus expansion device realizes PCIE2.0×4 high-speed bus interconnection based on a contact-type elastic magnetic suction connector, and realizes the tight positioning and rapid disassembly and assembly design of the portable computer and the expansion dock in combination with the structural "4+1+4+2" positioning and locking device, and ensures electrical safety in conjunction with the contact detection circuit. It has the characteristics of easy disassembly and use, high stability, and fast interconnection and communication speed. Its functional performance, general quality characteristics, and electromagnetic compatibility all meet the application requirements of anti-harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a hardware block diagram of a high-speed bus expansion device based on magnetic attraction according to the present invention;
[0011] Figure 2 It is a structural diagram of a high-speed bus expansion device based on magnetic attraction of the present invention;
[0012] Figure 3 The present invention is a diagram of a portable computer in a high-speed bus expansion device based on magnetic attraction. DETAILED DESCRIPTION
[0013] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.
[0014] refer to Figures 1 to 3 The present invention provides a high-speed bus expansion device based on magnetic attraction, which is composed of a portable computer 1, a first magnetic attraction module 2, a second magnetic attraction module 3, a positioning locking device 4, a PCIE high-speed bus expansion dock 5, etc.; wherein the first magnetic attraction module 2 is embedded in the bottom of the portable computer 1 to realize the extraction of the motherboard PCIE2.0×4 signal and DC12V power supply of the portable computer 1; the second magnetic attraction module 3 is embedded in the top of the PCIE high-speed bus expansion dock 5 to realize the introduction of the motherboard PCIE2.0×4 signal and DC12V power supply; the first magnetic attraction module 2 and the second magnetic attraction module 3 are used in pairs to realize connection power-on and separation power-off; the positioning locking device 4 is used between the portable computer 1 and the PCIE high-speed bus expansion dock 5 to realize the fast positioning and quick disassembly and assembly of the two.
[0015] The portable computer 1 is a general reinforced notebook product, which is plugged into the first magnetic module 2 through a QTH series connector, and is composed of a motherboard, an LCD screen, a power module, a filter, a battery pack, a keyboard, a touchpad and other components (including a fan, an indicator light, a button, etc.). The external wide-voltage DC power supply of the portable computer 1 is sent to the isolated power module through the filter, and a stable 18V voltage is output to the outside to power the motherboard; the inside of the portable computer 1 is centered on the motherboard, and other components are connected; the first magnetic module 2 and the portable computer are plugged into each other through a QTH series connector to realize the external output of PCIE2.0×4 high-speed signals and DC12V / 40W power, which are used to connect the PCIE high-speed bus expansion dock 5.
[0016] The first magnetic module 2 is composed of a QTH series connector, a JFBC03 series magnetic connector (seat), a switch circuit, a printed circuit board, and structural parts. The signals it outputs include PCIE2.0×4 high-speed signals, in-position identification signals, DC12V / 40W power supply, and user-defined signals. The QTH series connector and the magnetic connector (seat) both use high-speed connectors with differential signal transmission rates greater than 10Gbps. The differential signal transmission rate of the QTH series connector is 20Gbps, and the differential signal transmission rate of the JFBC03 series magnetic connector (seat) is 10Gbps. The TH series connector and the magnetic connector (seat) are used to achieve low-loss transfer of PCIE2.0×4 high-speed signals; when the in-position identification signal of the switch circuit is at a low level, the switch circuit opens the path for outputting DC12V to the outside, realizing connection power-on and separation power-off; the structural parts realize the embedded installation of the first magnetic module 2 and the bottom of the portable computer 1.
[0017] The second magnetic module 3 is composed of a QTH series connector, a JFBC03 magnetic connector (head), a printed circuit board, and structural parts. Its signal composition includes PCIE2.0×4 high-speed signals, in-place marking points, DC12V / 40W power supply, and user-defined signals. The QTH series connector and the magnetic connector (head) both use high-speed connectors with differential signal transmission rates greater than 10Gbps. The differential signal transmission rate of the QTH series connector is 20Gbps, and the differential signal transmission rate of the JFBC03 series magnetic connector (head) is 10Gbps. The QTH series connector and the magnetic connector (head) are used to achieve low-loss transfer of PCIE2.0×4 high-speed signals; the in-place identification point of the second magnetic module 3 is connected to the signal ground; the structural parts realize the embedded installation of the second magnetic module 3 and the top of the PCIE high-speed bus expansion dock 5.
[0018] The PCIE high-speed bus expansion dock 5 is composed of a PCIE expansion board and a fan component. The PCIE expansion board leads out the IO interface required by the user, and the fan component provides the PCIE expansion board with a heat dissipation capacity with a TDP power consumption not exceeding 40W.
[0019] The "4+1+4+2" positioning and locking device 4 for realizing the tight positioning and quick disassembly of the portable computer 1 and the PCIE high-speed bus expansion dock 5 includes: 4 M6 specification positioning pins 401 located at the four corners, a pair of magnetic suction connectors with a magnetic suction separation force of not less than 20N, 4 quick locking devices 402, and 2 M4 specification positioning pins 403 located in the center area. The distribution of the positioning and locking device 4 on the portable computer 1 and the PCIE high-speed bus expansion dock 5 is as follows: the portable computer 1 is provided with 4 four-corner positioning holes 101, 2 center positioning holes 102, and 1 magnetic suction connector (seat); the PCIE high-speed bus expansion dock 5 is provided with 4 four-corner positioning pins, 2 center positioning pins, 4 quick locking devices (of conventional design) 402, and 1 magnetic suction connector (head). During normal use, the portable computer 1 and the PCIE high-speed bus expansion dock 5 are precisely positioned and inserted through the four corner positioning pins 401 and the two positioning pins 403 in the center area; when the insertion depth reaches a certain distance, the magnetic attraction assists the two to achieve preliminary interconnection, at which time the electrical connection is established, but it does not have vibration resistance; the four quick locking devices 402 achieve a tight connection between the two. The positioning locking device 4 enables the portable computer 1 and the PCIE high-speed bus expansion dock 5 to be installed and interconnected within 5 seconds and separated within 3 seconds, thereby achieving rapid disassembly and assembly.
[0020] The portable computer 1 and the PCIE high-speed bus expansion dock 5 use the long and short pin design of the magnetic suction connector (head) and the in-place identification circuit design of the magnetic suction connector (seat) to ensure electrical safety. The three elastic pins of different lengths of the magnetic suction connector are planned to be used as the power ground pin (the longest), the power pin (the second longest), and the signal pin (the shortest). When the portable computer 1 and the PCIE high-speed bus expansion dock 5 are interconnected, the power ground pin contacts first, the power pin contacts second, and the signal pin contacts last (at this time, the portable computer 1 supplies power to the outside); when separated, the signal pin is disconnected first (at this time, the portable computer 1 is disconnected from supplying power to the outside), the power pin is disconnected second, and the power ground pin is disconnected last, thus achieving electrical safety of hot plugging of the portable computer 1 and the PCIE high-speed bus expansion dock 5.
[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A high-speed bus expansion device based on magnetic attraction, characterized in that: It includes a portable computer, a first magnetic module, a second magnetic module, a positioning locking device, and a PCIE high-speed bus expansion dock; wherein the first magnetic module is embedded in the bottom of the portable computer to realize the extraction of the PCIE2.0×4 signal of the mainboard and the DC12V power supply of the portable computer; the second magnetic module is embedded in the top of the PCIE high-speed bus expansion dock to realize the introduction of the PCIE2.0×4 signal of the mainboard and the DC12V power supply; the first magnetic module and the second magnetic module are used in pairs to realize connection power-on and separation power-off; a positioning locking device is used between the portable computer and the PCIE high-speed bus expansion dock to realize the fastening and disassembly of the two.
2. The device according to claim 1, characterized in that The portable computer is a reinforced notebook, which is plugged into the first magnetic module through a QTH series connector, and includes a mainboard, a power module, and a filter; the external wide-voltage DC power supply of the portable computer is sent to the power module through the filter, and a stable 18V voltage is output to the outside to power the mainboard; the mainboard is used to connect other components of the portable computer; the first magnetic module and the portable computer are plugged into each other through a QTH series connector to realize the external output of PCIE2.0×4 high-speed signals and DC12V / 40W power for connecting to a PCIE high-speed bus expansion dock.
3. The device according to claim 1, characterized in that The first magnetic module includes a QTH series connector, a magnetic connection seat, a switch circuit, and a structural part; the QTH series connector and the magnetic connection seat are both high-speed connectors with a differential signal transmission rate greater than 10Gbps, the differential signal transmission rate of the QTH series connector is 20Gbps, and the differential signal transmission rate of the magnetic connection seat is 10Gbps. The TH series connector and the magnetic connection seat are used to achieve low-loss transfer of PCIE2.0×4 high-speed signals; when the in-position identification signal of the switch circuit is at a low level, the switch circuit opens a path for outputting DC12V to the outside, thereby realizing power-on and power-off when connected and separated; the structural part is used to realize embedded installation of the first magnetic module and the bottom of the portable computer; The second magnetic module includes QTH series connectors, magnetic connectors, and structural parts; the QTH series connectors and magnetic connectors both use high-speed connectors with differential signal transmission rates greater than 10Gbps, the differential signal transmission rate of the QTH series connectors is 20Gbps, and the differential signal transmission rate of the magnetic connector heads is 10Gbps. The QTH series connectors and magnetic connectors are used to achieve low-loss switching of PCIE2.0×4 high-speed signals; the in-place identification point of the second magnetic module is connected to the signal ground; the structural parts are used to achieve embedded installation of the second magnetic module and the top of the PCIE high-speed bus expansion dock.
4. The device according to claim 1, characterized in that The PCIE high-speed bus expansion dock is composed of a PCIE expansion board and a fan component. The PCIE expansion board leads out the IO interface required by the user, and the fan component provides the PCIE expansion board with a heat dissipation capacity with a TDP power consumption not exceeding 40W.
5. The device according to claim 1, characterized in that The positioning and locking device for realizing the tight positioning and quick disassembly and assembly of the portable computer and the PCIE high-speed bus expansion dock comprises: 4 positioning pins located at four corners, a pair of magnetic connectors with a magnetic separation force of not less than 20N, 4 quick locking devices, and 2 positioning pins located in the center area; the portable computer 1 is provided with 4 four-corner positioning holes and 2 center positioning holes, and the positioning and locking devices are distributed on the portable computer 1 and the PCIE high-speed bus expansion dock as follows: the portable computer 1 is provided with a magnetic connection seat; the PCIE high-speed bus expansion dock is provided with 4 positioning pins located at four corners, 2 positioning pins located in the center area, 4 quick locking devices, and 1 magnetic connection head; during normal use, the portable computer and the PCIE high-speed bus expansion dock are positioned and inserted through the positioning pins located at the four corners and the 2 positioning pins located in the center area, and when the insertion depth reaches a certain distance, the magnetic attraction force assists the two to achieve preliminary interconnection, at which time the electrical connection is established, and the 4 quick locking devices achieve a tight connection between the two.
6. The device according to claim 5, characterized in that A pair of magnetic connectors of the positioning locking device with a magnetic separation force of not less than 20N are each provided with three elastic pins of different lengths, namely a power ground pin, a power pin, and a signal pin. The lengths from long to short are the power ground pin, the power pin, and the signal pin. When the portable computer is interconnected with the PCIE high-speed bus expansion dock, the power ground pin contacts first, then the power pin contacts, and finally the signal pin contacts. At this time, the portable computer 1 supplies power to the outside; when separated, the signal pin is disconnected first, at this time, the portable computer 1 is disconnected from supplying power to the outside, the power pin is disconnected then, and the power ground pin is disconnected last.
7. The device according to claim 2, characterized in that The portable computer also includes a liquid crystal screen, a battery pack, a keyboard and a touch pad.
8. The device according to claim 3, characterized in that The first magnetic attraction module also includes a printed circuit board.
9. The device according to claim 1, characterized in that The device is used in the field of computer control technology.
10. A method of operating the device according to any one of claims 1 to 9.