Computer power supply expansion adapter plate
By using a computer power extension adapter board to step down the voltage of the motherboard's unused DC12V interface, the problem of insufficient power supply in the solid-state drive test platform was solved. This achieved stable power supply and reduced heat dissipation, thereby improving the stability of the test platform and reducing costs.
Patent Information
- Application Number
- CN202422875990.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In existing technologies, the power supply capacity of solid-state drive testing platforms is insufficient, resulting in unstable power supply after the number of interfaces is expanded. Furthermore, external power supplies occupy space and generate heat, posing a risk to control timing.
Design a computer power extension adapter board that utilizes the unused DC12V interface on the computer motherboard for step-down conversion to power the test interface. Employ a high-efficiency, low-power power management chip and gold-plated contact design, combined with heat dissipation measures, to ensure stable power supply and reduce heat.
Without adding an external power supply, the power supply capacity of the test interface was improved, space occupation and heat emission were reduced, the stability of the test platform and the service life of the equipment were improved, and the cost was reduced.
Smart Images
Figure CN223514380U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a switching board technical field, concretely relates to a computer power supply extension switching board. BACKGROUND
[0002] In the testing process of solid state drives (SSDs), B I T (Burn-in Test) plays a crucial role. This test aims to evaluate the stability and application compatibility of SSDs by continuously writing and reading data for a long time, ensuring the reliability of products in actual applications. To achieve this goal, it is usually necessary to connect SSDs to dedicated testing equipment for high-intensity data read-write operations.
[0003] Traditional testing platform construction methods often use desktop computers as the core, and multiple test interfaces are managed by building cabinets. In this architecture, test interfaces are extended to cabinet panels to facilitate the connection and testing of multiple SSDs. However, due to the limited number of native test interfaces, PCI E expansion technology is often used to increase the number of interfaces to meet the needs of large-scale testing.
[0004] Although PCI E expansion technology effectively increases the number of interfaces, it also poses challenges to power supply capabilities. For example, on a regular computer motherboard, there are usually 4-5 SATA interfaces (one of which is usually occupied by the system disk). Through PCI E expansion, an additional 12 interfaces can be added, bringing the total number of test interfaces to 16. However, when testing large-capacity SSDs, due to the limitations of power supply capabilities, only 6-8 interfaces can be supported for stable operation. Once this limit is exceeded, power supply shortages can cause disk drop errors or test stoppage.
[0005] To address this challenge, external DC5V power supplies are often used in existing technologies to power some test interfaces. Although this solution can alleviate power supply pressure to some extent and meet the power supply needs of 6 test interfaces, it also brings new problems:
[0006] Space occupation and heat emission: External power supplies not only occupy valuable space in the cabinet, but also generate additional heat emissions in a narrow environment. This not only increases the cabinet's environmental temperature, but also can adversely affect the stability and lifespan of the testing platform.
[0007] Control timing risk: Due to the lack of interconnection control mechanisms between external power supplies and computers, there is a risk of switch timing errors. This can cause data loss, equipment damage, or inaccurate test results during testing. INVENTION CONTENTS
[0008] In order to overcome the prior art, the utility model provides a computer power supply expansion adapter plate, aims at effectively solving the problem of insufficient power supply of expansion interface, simultaneously avoids the space occupation, heat emission and control timing risk in prior art.
[0009] The utility model solves technical means that it adopts for its technical problem: a computer power supply expansion adapter plate, including as the adapter plate main part's circuit board, its improvement lies in, the circuit board is provided with DC12V pad, 7+15PSATA female seat connector, 7P SATA gold finger interface and voltage reducing circuit, wherein, DC12V pad is used for welding DC12V power line, the power line converges to DC12V power connection terminal, connects the DC12V interface of computer power through power connection terminal;Voltage reducing circuit receives the DC12V power of computer output, exports DC5V power after voltage reduction, and then 7+15PSATA female seat connector is used for test interface power supply;7P SATA gold finger interface is used for connecting computer mainboard through data line.
[0010] The voltage reducing circuit includes chip U1, capacitor CS1, capacitor CX1, capacitor C15, capacitor CB1, capacitor CF1, inductor L1, resistor RA1, resistor RB1, capacitor CX2, capacitor CS2 and TVS diode D1.
[0011] The 7P SATA gold finger interface has a thickness of 1.2 mm.
[0012] The circuit board is further provided with a state indicating lamp electrically connected with the voltage reducing circuit for indicating the working state of the voltage reducing circuit.
[0013] The circuit board is further provided with a state indicating lamp electrically connected with the voltage reducing circuit for indicating the working state of the voltage reducing circuit.
[0014] The 7+15P SATA female connector described in the above technical solution adopts a gold-plated contact design to improve conductivity and oxidation resistance, ensuring stability and reliability under long-term use.
[0015] In the above technical solution, the chip U1 in the step-down circuit is selected as a power management chip with high efficiency, low power consumption and overheat protection to ensure the stability and safety of the step-down process.
[0016] The circuit board described in the above technical solution is also provided with heat sinks or heat dissipation holes to effectively dissipate the heat generated by the step-down circuit during operation and ensure long-term stable operation of the circuit.
[0017] The circuit board surface described in the above technical solution is treated with conformal coating to enhance its moisture-proof, mildew-proof, and salt spray-proof capabilities, adapt to the usage requirements under various harsh environmental conditions, and extend the service life of the power extension adapter board.
[0018] The beneficial effects of this utility model are:
[0019] Without adding an external power supply, the idle DC12V interface of the computer power supply is stepped down and converted to provide power to the test interface. This is highly operable, enhances the application value of the test platform and equipment, increases the number of expanded test interfaces, and significantly reduces test costs. At the same time, it avoids the external power supply occupying rack space, reduces heat dissipation, improves the rack ambient temperature, enhances rack stability, and extends service life. The structure is simple, fully considers welding processing, is low-cost, and highly reliable, making it suitable for industrial applications. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of a computer power extension adapter board according to an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of a 7+15P SATA female connector shown in an embodiment of the present invention.
[0022] Figure 3 This is a structural diagram of a step-down circuit shown in an embodiment of the present invention. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0025] In traditional connection methods, the test interface connects to the computer motherboard via a data cable, and the power cable of the test interface connects to the DC5V interface of the computer power supply. The computer provides both DC5V and DC12V power interfaces to support expansion. Among them, DC5V is only used to power storage disks, while DC12V is used for high-power components such as graphics cards. When testing storage products, the DC12V interface is idle.
[0026] like Figures 1-2 As shown, this utility model provides a computer power supply expansion adapter board, including a circuit board 1 as the main body of the adapter board. The circuit board 1 is provided with a DC12V pad 2, a 7+15P SATA female connector 3, a 7P SATA gold finger interface 4, and a step-down circuit 5.
[0027] The DC12V pad 2 is used to solder the DC12V power line, which converges to the DC12V power connector terminal and is connected to the DC12V interface of the computer power supply through the power connector terminal.
[0028] The step-down circuit 5 receives the DC12V power output from the computer, steps it down to output DC5V power, and then the 7+15P SATA female connector 3 supplies power to the test interface.
[0029] In one possible implementation, the 7+15P SATA female connector features gold-plated contacts to improve conductivity and oxidation resistance, ensuring stability and reliability over extended periods of use.
[0030] The 7P SATA gold finger interface 4 is used to connect to the computer motherboard via a data cable.
[0031] In one possible implementation, the 7P SATA gold finger interface 4 is a circuit board-type interface composed of gold finger copper foil with a thickness of 1.2mm, which is consistent with the inner core thickness of the traditional 7P SATA male connector. It is used to replace the 7P SATA male connector, thereby reducing the size of the adapter board and reducing the overall space occupied.
[0032] In one possible implementation, such as Figure 3 As shown, the step-down circuit includes chip U1, capacitors CS1, CX1, C15, CB1, CF1, inductor L1, resistors RA1, RB1, CX2, CS2, and diode D1.
[0033] One end of capacitors CS1 and CX1 is connected to the DC12V power supply and pin 5 of chip U1, and the other end of capacitors CS1 and CX1 is grounded and connected to pin 7 of chip U1.
[0034] One end of the capacitor C15 is connected to pin 2 of the chip U1, and the other end of the capacitor C15 and pin 8 of the chip U1 are grounded.
[0035] The third pin of the chip U1 is connected to one end of the capacitor CB1, and the other end of the capacitor CB1 is connected to the fourth pin of the chip U1 and one end of the inductor L1. The other end of the inductor L1 is grounded through the capacitor CX2, the capacitor CS2 and the diode D1 respectively.
[0036] The other end of the inductor L1 is also connected to the fourth pin of the chip U1 through the capacitor CF1, and the other end of the inductor L1 is also connected to the GND pin of the chip U1 through the resistors RA1 and RB1.
[0037] In one possible implementation, the chip U1 in the step-down circuit 5 is selected as a power management chip with high efficiency, low power consumption and overheat protection functions to ensure the stability and safety of the step-down process.
[0038] Optionally, the chip U1 uses an MT3901 switching power supply chip. The external DC 12V power supply is input from pin 5 and output from pin 4 of U1 through capacitors CS1 (to filter high-frequency noise) and CX1 (to filter low-frequency noise). The capacitor CS1 is used to filter high-frequency noise, and the capacitor CX1 is used to filter low-frequency noise. Then, the inductor L1 stores and converts energy to output a linear and stable DC power supply. Finally, capacitors CX2 (to filter low-frequency noise) and CS2 (to filter high-frequency noise) provide a stable DC 5V power output.
[0039] Meanwhile, pin 1 of chip U1 receives a feedback signal. Through the pull-up signal of resistor RA1 and the pull-down signal of RB1, feedback information is obtained to control the operating frequency of chip U1 and adjust the output voltage of pin 4 of chip U1. Among them, diode D1 is a TVS (transient voltage suppressor diode) diode, which is used to protect the circuit from damage caused by instantaneous overvoltage.
[0040] In one possible implementation, the circuit board 1 is also provided with a status indicator light, which is electrically connected to the step-down circuit and is used to indicate the working status of the step-down circuit. When the step-down circuit normally outputs DC5V power, the status indicator light lights up.
[0041] In one possible implementation, the circuit board 1 is also provided with a heat sink or heat dissipation holes to effectively dissipate the heat generated by the step-down circuit during operation and ensure long-term stable operation of the circuit.
[0042] In one possible implementation, the surface of the circuit board 1 is treated with conformal coating to enhance its moisture-proof, mildew-proof, and salt spray-proof capabilities, adapt to the usage requirements under various harsh environmental conditions, and extend the service life of the power extension adapter board.
[0043] This invention utilizes the DC12V interface during the idle state of storage product testing to expand the DC12V and step it down to DC5V, providing a stable power supply for the storage product and solving the problem of insufficient power supply after expanding the test interface; it replaces the traditional 7P SATA male connector with a 1.2mm thick circuit board gold finger interface, shortening the length and reducing problems such as poor connection and space occupation caused by floating; single-sided component layout simplifies the surface mount technology (SMT) process, eliminating the need for double-sided soldering, avoiding secondary reflow soldering of top-side components, improving soldering quality and reducing costs.
[0044] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A computer power supply extension adapter board, comprising a circuit board as the main body of the adapter board, characterized in that, The circuit board is equipped with a DC12V pad, a 7+15P SATA female connector, a 7P SATA gold finger interface, and a step-down circuit. The DC12V pad is used to solder the DC12V power line, which converges to the DC12V power connector terminal and is connected to the DC12V interface of the computer power supply through the power connector terminal. The step-down circuit receives the DC12V power output from the computer, steps it down to output DC5V power, and then supplies power to the test interface through the 7+15P SATA female connector. The 7P SATA gold finger interface is used to connect to the computer motherboard via a data cable.
2. The computer power extension adapter board according to claim 1, characterized in that, The step-down circuit includes chip U1, capacitors CS1, CX1, C15, CB1, CF1, inductor L1, resistors RA1, RB1, CX2, CS2, and TVS diode D1. One end of capacitors CS1 and CX1 is connected to the DC12V power supply and pin 5 of chip U1, and the other end of capacitors CS1 and CX1 is grounded and connected to pin 7 of chip U1. One end of the capacitor C15 is connected to pin 2 of the chip U1, and the other end of the capacitor C15 and pin 8 of the chip U1 are grounded. The third pin of the chip U1 is connected to one end of the capacitor CB1, and the other end of the capacitor CB1 is connected to the fourth pin of the chip U1 and one end of the inductor L1. The other end of the inductor L1 is grounded through the capacitor CX2, the capacitor CS2 and the TVS diode D1 respectively. The other end of the inductor L1 is also connected to the fourth pin of the chip U1 through the capacitor CF1, and the other end of the inductor L1 is also connected to the GND pin of the chip U1 through the resistors RA1 and RB1.
3. The computer power extension adapter board according to claim 1, characterized in that, The thickness of the 7P SATA gold finger interface is 1.2mm.
4. The computer power extension adapter board according to claim 1, characterized in that, The circuit board is also equipped with a status indicator light, which is electrically connected to the step-down circuit and is used to indicate the working status of the step-down circuit. When the step-down circuit outputs DC5V power normally, the status indicator light will light up.
5. The computer power extension adapter board according to claim 1, characterized in that, The 7+15PSATA female connector features gold-plated contacts to improve conductivity and oxidation resistance, ensuring stability and reliability during long-term use.
6. The computer power extension adapter board according to claim 2, characterized in that, The chip U1 in the step-down circuit is a power management chip with high efficiency, low power consumption and overheat protection to ensure the stability and safety of the step-down process.
7. The computer power extension adapter board according to claim 1, characterized in that, The circuit board is also equipped with heat sinks or heat dissipation holes to effectively dissipate the heat generated by the step-down circuit during operation and ensure long-term stable operation of the circuit.
8. The computer power extension adapter board according to claim 1, characterized in that, The circuit board surface is treated with conformal coating to enhance its moisture-proof, mildew-proof, and salt spray-proof capabilities, adapting to the needs of use under various harsh environmental conditions and extending the service life of the power extension adapter board.