Universal testing device for USB (Universal Serial Bus) wire

Abstract

The utility model discloses a universal testing device for a USB wire rod. The universal testing device comprises a PCB, a USB-A plug female seat group, a TYPE-C plug female seat group, a Micro plug female seat group, an LED lamp group and a switch, the USB-A plug female seat group, the TYPE-C plug female seat group, the Micro plug female seat group, the LED lamp group and the switch are electrically connected and are all arranged on the PCB; the USB-A plug female seat group, the TYPE-C plug female seat group and the Micro plug female seat group are all detachably connected to corresponding test ports on the PCB; the gears of the switch comprise a 2-core test gear, a 4-core test gear and a 9-core test gear, the gears of the corresponding types and the plug female seats of the corresponding types are selected according to the types of the to-be-tested wires, and whether the to-be-tested wires are abnormal or not is judged according to the lighting condition of the LED lamp set. And the abnormal condition of the wire core is judged by observing the lighting condition of the LED lamp group, so that the test convenience is improved, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of USB testing, and in particular to a general testing device for USB wires. Background Art

[0002] In order to ensure the normal use of USB, it is necessary to test the USB wire to determine whether there is abnormal wiring. However, since there are various types of USB wires, such as 2-core, 4-core or 9-core wires; USB-A connectors to TYPE-C connectors or micro USB connectors; USB cables or USB3.0 cables, etc., the existing testing devices cannot conduct intuitive general testing on various types of wires, and the USB interfaces on the testing devices are easily damaged after being inserted and pulled out for multiple tests, resulting in interface failure and even device failure. Content of the Utility Model

[0003] In view of this, the utility model provides a general testing device for USB wires.

[0004] The general testing device for USB wires provided by the utility model includes: a PCB board, a USB-A plug socket group, a TYPE-C plug socket group, a Micro plug socket group, an LED lamp group and a switch;

[0005] The USB-A plug socket group, the TYPE-C plug socket group, the Micro plug socket group, the LED lamp group and the switch are electrically connected and are all arranged on the PCB board;

[0006] The USB-A plug socket group, the TYPE-C plug socket group and the Micro plug socket group are detachably connected to the corresponding test ports on the PCB board;

[0007] The gears of the switch include a 2-core test gear, a 4-core test gear and a 9-core test gear. Select the corresponding gear and the corresponding type of plug socket according to the type of the wire to be tested, and judge whether there is an abnormality in the wire to be tested according to the lighting condition of the LED lamp group.

[0008] As a preferred embodiment of the utility model, the USB-A plug socket group includes 5 USB-A plug socket units;

[0009] The TYPE-C plug socket group includes 3 TYPE-C plug socket units;

[0010] The Micro plug socket group includes 2 Micro plug socket units.

[0011] As a preferred embodiment of the present utility model, the LED lamp group includes LED1, LED2, LED3, LED4, LED5, LED6, and LED7.

[0012] As a preferred embodiment of the present utility model, each USB-A plug female seat unit includes pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and pin 9, and the USB-A plug female seat units are connected in parallel with each other.

[0013] As a preferred embodiment of the present utility model, each TYPE-C plug female seat unit includes pin 10, pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17, and pin 18, and the TYPE-C plug female seat units are connected in parallel with each other.

[0014] As a preferred embodiment of the present utility model, each Micro plug female seat unit includes pin 19, pin 20, pin 21, and pin 22, and the Micro plug female seat units are connected in parallel with each other.

[0015] As a preferred embodiment of the present utility model, pin 1 is connected to the VCC input terminal;

[0016] The positive electrode of LED1 is respectively connected to pin 10 and pin 19, and the negative electrode of LED1 is respectively connected to pin 11 and pin 20;

[0017] The positive electrode of LED2 is connected to pin 2, and the negative electrode of LED2 is connected to pin 3;

[0018] The positive electrode of LED3 is respectively connected to pin 12 and pin 21, and the negative electrode of LED3 is respectively connected to pin 13 and pin 22;

[0019] The positive electrode of LED4 is connected to pin 4, and the negative electrode of LED4 is connected to pin 5;

[0020] The positive electrode of LED5 is connected to pin 14, and the negative electrode of LED5 is connected to pin 15;

[0021] The positive electrode of LED6 is connected to pin 6, and the negative electrode of LED6 is connected to pin 7;

[0022] The positive electrode of LED7 is connected to pin 16, and the negative electrode of LED7 is connected to pin 17;

[0023] Pin 8 is grounded after passing through resistor R3.

[0024] As a preferred embodiment of the present utility model, one end of the switch is grounded;

[0025] When the switch is in the 2-core test gear position, the other end of the switch is connected to the 2-core interface;

[0026] When the switch is in the 4-core test gear position, the other end of the switch is connected to the 4-core interface;

[0027] When the switch is in the 9-core test gear position, the other end of the switch is not wired;

[0028] The 2-core interface is connected to the pin 2 through the resistor R1;

[0029] The 4-core interface is connected to the pin 4 through the resistor R2.

[0030] As a preferred embodiment of the present utility model, the LED lamp group further includes LED8, the positive electrode of LED8 is connected to the pin 9, and the negative electrode of LED8 is grounded after passing through the resistor R4.

[0031] As a preferred embodiment of the present utility model, the USB-A plug and socket set, the TYPE-C plug and socket set, and the Micro plug and socket set are all connected to the corresponding test ports on the PCB board through Dupont wires.

[0032] The present utility model has the following beneficial effects compared with the prior art:

[0033] 1. Through the setting of the above technical solution in the embodiment of the present utility model, through a detachable connection method, such as connecting the USB-A plug and socket set, the TYPE-C plug and socket set, and the Micro plug and socket set to the corresponding test ports through Dupont wires, it is possible to more conveniently and quickly replace the damaged plug and socket or increase or decrease the number of plug and sockets;

[0034] 2. Through the setting of the above technical solution in the embodiment of the present utility model, by setting a switch, an LED lamp group, a USB-A plug and socket set, a TYPE-C plug and socket set, and a Micro plug and socket set, it is possible to test various types of USB wires through one device and judge whether there is an abnormality through the lighting condition of the LED lamp group, enhancing the versatility of the test device and the intuitiveness of detection. Description of the Drawings

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0036] Figure 1 Structural schematic diagram of a general testing device for USB cables according to an embodiment of the present invention;

[0037] Figure 2 Schematic diagram of the testing architecture principle of a general testing device for USB cables according to an embodiment of the present invention. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0039] Embodiment:

[0040] As Figure 1 shown, the general testing device for USB cables provided by the present invention includes: a PCB board 100, a USB-A plug socket group 200, a TYPE-C plug socket group 300, a Micro plug socket group 400, an LED lamp group 500, and a switch 600;

[0041] The USB-A plug socket group 200, the TYPE-C plug socket group 300, the Micro plug socket group 400, the LED lamp group 500, and the switch 600 are electrically connected and are all disposed on the PCB board 100;

[0042] The USB-A plug socket group 200, the TYPE-C plug socket group 300, and the Micro plug socket group 400 are detachably connected to the corresponding test ports on the PCB board;

[0043] The gears of the switch include a 2-core test gear, a 4-core test gear, and a 9-core test gear. Select the corresponding gear type and the corresponding plug socket according to the type of the wire to be tested, and judge whether there is an abnormality in the wire to be tested according to the lighting condition of the LED lamp group.

[0044] In the embodiment of the present utility model, through the above technical solution settings, by means of the connection method of detachable plug sockets, such as connecting the USB-A plug socket group, TYPE-C plug socket group, and Micro plug socket group to the corresponding test ports through Dupont wires, it is possible to more conveniently and quickly replace the damaged plug sockets or increase or decrease the number of plug sockets; and by setting a switch, an LED lamp group, a USB-A plug socket group, a TYPE-C plug socket group, and a Micro plug socket group, multiple types of USB wires can be tested through one device, and whether there is an abnormality can be judged by the lighting condition of the LED lamp group, enhancing the versatility of the test device and the intuitiveness of detection.

[0045] As a preferred embodiment of the present utility model, the USB-A plug socket group includes 5 USB-A plug socket units;

[0046] The TYPE-C plug socket group includes 3 TYPE-C plug socket units;

[0047] The Micro plug socket group includes 2 Micro plug socket units.

[0048] Among them, in the embodiment of the present utility model, the number of each of the above plug socket units is not specifically limited. Generally speaking, for the convenience of differential testing, the number of USB-A plug socket units is the sum of the number of TYPE-C plug socket units and Micro plug socket units.

[0049] Such as Figure 2 shown, as a preferred embodiment of the present utility model, the LED lamp group includes LED1, LED2, LED3, LED4, LED5, LED6, and LED7.

[0050] As a preferred embodiment of the present utility model, each USB-A plug socket unit includes pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and pin 9, and the USB-A plug socket units are connected in parallel with each other.

[0051] As a preferred embodiment of the present utility model, each TYPE-C plug socket unit includes pin 10, pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17, and pin 18, and the TYPE-C plug socket units are connected in parallel with each other.

[0052] As a preferred embodiment of the present utility model, each Micro plug socket unit includes pin 19, pin 20, pin 21, and pin 22, and the Micro plug socket units are connected in parallel with each other.

[0053] Reference Figure 1 , the PCB 100 further includes a VCC input terminal 700, and the VCC input terminal can be connected to a DC power supply or a 24V adapter.

[0054] As a preferred embodiment of the present invention, reference Figure 2 , the pin 1 is connected to the VCC input terminal;

[0055] The positive electrode of the LED1 is respectively connected to the pin 10 and the pin 19, and the negative electrode of the LED1 is respectively connected to the pin 11 and the pin 20;

[0056] The positive electrode of the LED2 is connected to the pin 2, and the negative electrode of the LED2 is connected to the pin 3;

[0057] The positive electrode of the LED3 is respectively connected to the pin 12 and the pin 21, and the negative electrode of the LED3 is respectively connected to the pin 13 and the pin 22;

[0058] The positive electrode of the LED4 is connected to the pin 4, and the negative electrode of the LED4 is connected to the pin 5;

[0059] The positive electrode of the LED5 is connected to the pin 14, and the negative electrode of the LED5 is connected to the pin 15;

[0060] The positive electrode of the LED6 is connected to the pin 6, and the negative electrode of the LED6 is connected to the pin 7;

[0061] The positive electrode of the LED7 is connected to the pin 16, and the negative electrode of the LED7 is connected to the pin 17;

[0062] The pin 8 is grounded after passing through the resistor R3.

[0063] As a preferred embodiment of the present invention, one end of the switch is grounded;

[0064] When the switch is in the 2-core test gear position, the other end of the switch is connected to the 2-core interface;

[0065] When the switch is in the 4-core test gear position, the other end of the switch is connected to the 4-core interface;

[0066] When the switch is in the 9-core test gear position, the other end of the switch is not wired;

[0067] The 2-core interface is connected to the pin 2 through the resistor R1;

[0068] The 4-core interface is connected to the pin 4 through the resistor R2.

[0069] As a preferred embodiment of the present utility model, the LED lamp group further includes an LED8, the positive electrode of the LED8 is connected to the pin 9, and the negative electrode of the LED8 is grounded after passing through a resistor R4. The LED8 can be used to detect whether the outer shielding wire of the wire is properly grounded. When either end of the wire is inserted into the corresponding female socket unit, the shielding wire can play a shielding role. When the wire has a shielding wire and the shielding wire is grounded, current will pass through pin 18 or pin 9, causing the LED8 to light up, thereby intuitively detecting whether the shielding wire is grounded.

[0070] Among them, the resistors R1, R2, R3, and R4 can play a role in current limiting and voltage limiting. A 24V voltage can be input to the VCC input terminal. The resistance value of the resistor R1 is 20KΩ, the resistance value of the resistor R2 is 15KΩ, the resistance value of the resistor R3 is 3.3KΩ, and the resistance value of the resistor R4 is 33KΩ.

[0071] As a preferred embodiment of the present utility model, the USB-A plug female socket group, the TYPE-C plug female socket group, and the Micro plug female socket group are all connected to the corresponding test ports on the PCB board through Dupont wires.

[0072] The working principle of the universal test device for USB wires in the embodiments of the present utility model is as follows:

[0073] Reference Figure 1-2 , when the type of the wire to be tested is a 2-core wire, the switch is switched to the 2-core test gear; when the type of the wire to be tested is a 4-core wire, the switch is switched to the 4-core test gear; when the type of the wire to be tested is a 9-core wire, the switch is switched to the 9-core test gear. One end of the wire to be tested is a USB plug, and the USB plug is inserted into any USB-A plug female socket unit; the other end of the wire to be tested is a TYPE-C plug or a Micro plug. The TYPE-C plug is inserted into any TYPE-C plug female socket unit, and the Micro plug is inserted into any Micro plug female socket unit.

[0074] Taking the 2-core wire of the wire to be tested, USB-A to TYPE-C head as an example, when the wire is normal, the current flow is: VCC input terminal → pin 1 → VCC wire core → pin 10 → LED1 → pin 11 → GND wire core → pin 2 → resistor R1 → 2-core interface → ground, thereby causing the LED1 to light up, and the remaining LED lamps are not connected to the circuit; if the LED1 does not light up, the wire is abnormal.

[0075] Taking the type of the wire to be tested as a 4-core wire and the USB-A to TYPE-C head as an example, when the wire is normal, the current flow is: VCC input terminal → pin 1 → VCC wire core → pin 10 → LED1 → pin 11 → GND wire core → pin 2 → LED2 → pin 3 → D- wire core → pin 12 → LED3 → pin 13 → D+ wire core → pin 4 → resistor R2 → 4-core interface → ground, so that LED1, LED2 and LED3 are all on, and the rest of the LED lights are not connected to the circuit; if LED1, LED2 and LED3 are all off, then the wire is abnormal, such as: the two solder joints at any one end are cross-welded, the solder joint of any one wire core is loose or any one wire core is broken; if LED1 and LED2 are on, but LED3 is off, then it is like the D+ wire core and the D- wire core are short-circuited by welding.

[0076] The test of other wire core types and plug types can refer to the above principle, so that the abnormal situation of the wire core can be judged by observing the lighting conditions of the LED light group, improving the test convenience and saving the production cost.

[0077] The above is only a preferred embodiment of the patent of the present invention, but the protection scope of the patent of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the patent of the present invention, according to the technical solution and the inventive concept of the patent of the present invention, makes equivalent replacements or changes, all belong to the protection scope of the patent of the present invention.

Claims

1. A general testing device for USB cables, characterized in that, Including: A PCB board, a USB-A plug and socket set, a TYPE-C plug and socket set, a Micro plug and socket set, an LED lamp set and a switch; The USB-A plug and socket set, the TYPE-C plug and socket set, the Micro plug and socket set, the LED lamp set and the switch are electrically connected and are all arranged on the PCB board; The USB-A plug and socket set, the TYPE-C plug and socket set and the Micro plug and socket set are detachably connected to the corresponding test ports on the PCB board; The gears of the switch include a 2-core test gear, a 4-core test gear and a 9-core test gear. Select the corresponding type of gear and the corresponding type of plug and socket according to the type of the wire to be tested, and judge whether there is an abnormality in the wire to be tested according to the lighting condition of the LED lamp set.

2. The universal test device for USB wires according to claim 1, characterized in that The USB-A plug and socket set includes 5 USB-A plug and socket units; The TYPE-C plug and socket set includes 3 TYPE-C plug and socket units; The Micro plug and socket set includes 2 Micro plug and socket units.

3. The universal test device for USB wires according to claim 2, characterized in that The LED lamp set includes LED1, LED2, LED3, LED4, LED5, LED6 and LED7.

4. The universal test device for USB wires according to claim 3, characterized in that Each of the USB-A plug and socket units includes pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8 and pin 9, and the USB-A plug and socket units are connected in parallel with each other.

5. The universal test device for USB wires according to claim 4, characterized in that Each of the TYPE-C plug and socket units includes pin 10, pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17 and pin 18, and the TYPE-C plug and socket units are connected in parallel with each other.

6. The universal test device for USB wires according to claim 5, characterized in that Each of the Micro plug and socket units includes pin 19, pin 20, pin 21 and pin 22, and the Micro plug and socket units are connected in parallel with each other.

7. The universal test device for USB wires according to claim 6, characterized in that Pin 1 is connected to the VCC input terminal; The positive electrode of LED1 is respectively connected to pin 10 and pin 19, and the negative electrode of LED1 is respectively connected to pin 11 and pin 20; The positive electrode of LED2 is connected to pin 2, and the negative electrode of LED2 is connected to pin 3; The positive electrode of LED3 is respectively connected to pin 12 and pin 21, and the negative electrode of LED3 is respectively connected to pin 13 and pin 22; The positive electrode of LED4 is connected to pin 4, and the negative electrode of LED4 is connected to pin 5; The positive electrode of the LED5 is connected to the pin 14, and the negative electrode of the LED5 is connected to the pin 15; The positive electrode of the LED6 is connected to the pin 6, and the negative electrode of the LED6 is connected to the pin 7; The positive electrode of the LED7 is connected to the pin 16, and the negative electrode of the LED7 is connected to the pin 17; The pin 8 is grounded after passing through the resistor R3.

8. The general test device for USB cables according to claim 7, wherein One end of the switch is grounded; When the switch is in the 2-core test gear position, the other end of the switch is connected to the 2-core interface; When the switch is in the 4-core test gear position, the other end of the switch is connected to the 4-core interface; When the switch is in the 9-core test gear position, the other end of the switch is not wired; The 2-core interface is connected to the pin 2 through the resistor R1; The 4-core interface is connected to the pin 4 through the resistor R2.

9. The general test device for USB cables according to claim 6, wherein The LED lamp group further includes an LED8, the positive electrode of the LED8 is connected to the pin 9, and the negative electrode of the LED8 is grounded after passing through the resistor R4.

10. The general test device for USB cables according to claim 1, characterized in that, The USB-A plug socket group, the TYPE-C plug socket group and the Micro plug socket group are all connected to the corresponding test ports on the PCB board through DuPont wires.

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