USB connector electrical performance test board

Abstract

The utility model relates to the electrical performance detection field, concretely, a kind of USB connector electrical performance test board is related to it, it includes pedestal, the one side of the pedestal is fixedly connected with bunching element. The utility model is in the level of convenient operation and efficiency promotion, clamping test assembly realizes automation control, just can complete the clamping and loosening action of clamping plate by controller issuing order, without manual operation, greatly improve test efficiency, especially suitable for batch testing, simultaneously, the elastic connection design of clamping plate and probe needle plate, different specifications of USB connector can be self-adapting, reduce debugging time, further improve test efficiency, when electric telescopic link drives clamping plate to move, the damping telescopic link in damping element slows down clamping plate movement speed, rubber compression plate absorbs collision energy, avoid rigid collision between probe needle plate and USB connector, effectively protect probe needle and connector pin, reduce component wear.

Description

Technical Field

[0001] This utility model relates to the field of electrical performance testing, and more specifically, to a USB connector electrical performance testing bench. Background Technology

[0002] A USB connector electrical performance test bench is an automated or semi-automated device specifically designed to test the electrical parameters of USB interfaces (such as Type-A, Type-B, Type-C, Micro-USB, etc.). It verifies whether the performance of USB connectors meets industry standards (such as the USB-IF specification) or specific customer requirements by simulating electrical conditions in real-world usage scenarios.

[0003] Currently, USB connector testing commonly employs a probe plate that contacts the connector pins for electrical testing. To automate the testing process, existing technologies often use electrically driven clamping devices to position and clamp the USB connector, ensuring stable contact between the probes and their pins. However, in practice, traditional clamping mechanisms often use rigid drives. When the clamping plate moves rapidly and contacts the USB connector, it can easily cause rigid collisions between the probes and the connector pins, affecting test stability and potentially leading to probe bending, pin deformation, or even damage, impacting test accuracy and product yield. Furthermore, due to differences in size and pin layout among different USB connector models, traditional test fixtures often require frequent changes or adjustments to the clamping structure, resulting in lengthy debugging times and reduced testing efficiency, making it difficult to meet the demands of high-volume, continuous testing. Therefore, we propose a USB connector electrical performance testing bench. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a USB connector electrical performance test bench, which solves the problems of easy damage to the probe and pin due to collision caused by the rigid drive of the clamping mechanism during USB connector testing, poor test stability, poor fixture adaptability, long debugging time, and difficulty in meeting the needs of batch testing.

[0005] To achieve the above objectives, this utility model provides a USB connector electrical performance test bench, including a base, a cable harness fixedly connected to one side of the base, and a clamping test assembly provided on the top of the base;

[0006] The clamping test assembly includes two electric telescopic rods fixedly connected to both sides of the top surface of the base. Each of the two electric telescopic rods has a clamping plate fixedly connected to one end of its opposite side. A damping element is fixedly connected to one side of the clamping plate, and a probe plate is elastically connected to the clamping plate through the damping element. A placement plate is fixedly connected to the middle of the top surface of the base.

[0007] The beneficial effects of this utility model are:

[0008] 1. In terms of ease of operation and efficiency improvement, the clamping test component achieves automated control. The clamping and releasing actions of the clamping plate can be completed simply by issuing instructions through the controller, without the need for manual operation, which greatly improves the testing efficiency and is especially suitable for batch testing. At the same time, the flexible connection design between the clamping plate and the probe plate can adapt to different specifications of USB connectors, reduce debugging time, and further improve testing efficiency.

[0009] 2. In this utility model, when the electric telescopic rod drives the clamping plate to move, the damping telescopic rod in the damping component slows down the movement speed of the clamping plate, and the rubber compression plate absorbs the collision energy, avoiding rigid collision between the probe plate and the USB connector, effectively protecting the probe and connector pins, reducing component wear, and at the same time, the telescopic component provides stable support for the clamping plate, dispersing the load during movement, reducing the force on components such as the electric telescopic rod, and extending the overall service life of the equipment.

[0010] As a further improvement to this technical solution, a tester body is provided on one side of the base mounting harness, and a wire is electrically connected to the tester body. The wire passes through the harness and is connected to the probe plate. The harness has circular slots arranged in a linear array to fix the position of the wire.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the tester body is connected to one side of the wire harness, the wires are passed through the circular groove of the wire harness and connected to the probe plate, and the wire harness is used to fix the wires, preventing messy wiring from affecting the test.

[0012] As a further improvement to this technical solution, a fixing block is fixedly connected to the end of each of the two electric telescopic rods away from the clamping plate. The bottom surface of the fixing block is connected to the top surface of the base. Both electric telescopic rods are controlled by a controller to ensure synchronous movement. Telescopic components are fixedly connected to both ends of the clamping plate. Each telescopic rod includes an inner rod fixedly connected to both ends of one side of the clamping plate. An outer rod is fixedly connected to one end of the inner rod, and a fixing plate is fixedly connected to the end of the outer rod away from the clamping plate. The bottom surface of the fixing plate is also connected to the top surface of the base. The damping component includes a damping telescopic rod fixedly connected to the other side of the clamping plate and a rubber compression plate fixedly connected to the top of the other side of the clamping plate. The rubber compression plate is located above the damping telescopic rod. A sealing cover is hinged to the top of the placement plate. A groove is provided inside the placement plate for placing multiple USB connectors.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the telescopic parts at both ends of the clamping plate play a guiding role, ensuring that the clamping plate moves smoothly and without deviation. When it approaches the placement plate, the damping telescopic rod in the damping part slows down the movement speed of the clamping plate. The rubber compression plate first contacts the probe plate and compresses it. Through elastic deformation, it provides buffering, so that the probe plate contacts the USB connector with appropriate pressure, ensuring that the probe and the connector pin are reliably connected, while avoiding damage caused by excessive pressure.

[0014] As a further improvement to this technical solution, the bottom surface of the base is provided with a rectangular array of rubber suction cups, and the top of the rubber suction cups is connected to the base by bolts.

[0015] The advantage of adopting the above-mentioned further solution is that the base is fixed to the workbench by the rubber suction cup on the bottom surface, ensuring the stability of the test platform. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the clamping test assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping test assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping test assembly of this utility model.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 100. Base; 101. Tester body; 102. Wires;

[0022] 200. Cable harness;

[0023] 300. Clamping test assembly; 301. Electric telescopic rod; 302. Clamping plate; 303. Damping component; 3031. Damped telescopic rod; 3032. Rubber compression plate; 304. Probe plate; 3041. Sealing cover; 305. Placement plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The present invention provides the following preferred embodiments.

[0026] Please see Figures 1-4 As shown, this embodiment provides a USB connector electrical performance test bench, including a base, a cable harness fixedly connected to one side of the base, and a clamping test assembly provided on the top of the base;

[0027] The clamping test assembly includes two electric telescopic rods fixedly connected to the two sides of the top surface of the base. Each of the two electric telescopic rods has a clamping plate fixedly connected to one end of its opposite side. A damping element is fixedly connected to one side of the clamping plate, and a probe plate is elastically connected to the clamping plate through the damping element. A placement plate is fixedly connected to the middle of the top surface of the base.

[0028] The improvement in this embodiment is as follows:

[0029] Considering that USB connector electrical performance testing requires first placing the USB connector stably on the test bench, and then manually pushing the clamping plate slowly towards the USB connector to ensure a tight fit for the electrical performance test, the force and speed of manually pushing the clamping plate are difficult to control precisely. This can lead to inconsistent contact pressure between the connector and the clamping plate depending on the operator or the same operator's repeated operations, affecting the stability of the electrical performance test data. Therefore, when testing the USB connector, it is first placed in the placement plate, and then two electric telescopic rods are activated to drive the clamping plate and probe plate towards the USB connector. During the movement, the clamping plate automatically... To compensate for dimensional differences in USB interfaces and ensure stable testing, the process is automated through an electric telescopic rod. Manual placement of the USB connector on the mounting plate is all that's needed, eliminating the need for manual pushing of the clamping plate. This significantly improves testing efficiency and consistency compared to manual operation. Furthermore, the damping mechanism's automatic dimensional compensation design ensures compatibility with different USB connector sizes, preventing poor contact or damage caused by dimensional deviations and guaranteeing accurate and reliable test results. Simultaneously, automation reduces human intervention, lowering the risk of human error and the workload of operators, resulting in efficient, accurate, and safe testing.

[0030] Based on the above, the specific structure will be disclosed in detail:

[0031] To implement USB connector testing, detailed information regarding the testing-related structures is required, such as... Figure 1As shown, the tester body is located on one side of the base mounting cable tie. The tester body is electrically connected to a wire, which passes through the cable tie and connects to the probe plate. The cable tie has circular slots arranged in a linear array to fix the position of the wire. The circular slots, through precise aperture design, limit the wire to a fixed position, preventing the wire from loosening, being pulled, or falling off due to external forces (such as insertion and removal actions, equipment vibration) during the test, thus ensuring connection stability.

[0032] Furthermore, to achieve stable clamping of USB connectors of different sizes, the clamping test components are disclosed in detail, such as... Figure 2 and Figure 3 As shown, each of the two electric telescopic rods has a fixed block at the end away from the clamping plate. The bottom surface of the fixed block is connected to the top surface of the base. Both electric telescopic rods are controlled by a controller to ensure that they move synchronously. The two electric telescopic rods are symmetrically distributed (such as left-right or front-back symmetrical). When they extend and retract synchronously, the thrust or pull generated is equal in magnitude and opposite in direction. The resultant force passes through the geometric center of the clamping plate.

[0033] Telescopic components are fixedly connected to both ends of the clamping plate. The telescopic rod includes an inner rod fixedly connected to both ends of one side of the clamping plate. An outer rod is fixedly connected to one end of the inner rod, and a fixing plate is fixedly connected to the end of the outer rod away from the clamping plate. The bottom surface of the fixing plate is also connected to the top surface of the base. The telescopic structure composed of the inner rod and the outer rod moves in a fixed direction (such as the vertical direction). The fixing plate locks the end of the outer rod on the base, forming a rigid support with both ends fixed. This structure forces the clamping plate to move only along the axial direction of the telescopic rod and prevents it from shifting left, right or forward and backward, ensuring that the pins of the USB connector and the probe plate are precisely aligned.

[0034] The damping component includes a damping telescopic rod fixedly connected to the other side of the clamping plate and a rubber compression plate fixedly connected to the top of the other side of the clamping plate. The rubber compression plate is located above the damping telescopic rod. A sealing cover is hinged to the top of the placement plate. A groove is provided inside the placement plate for placing multiple USB connectors. The probe plate contacts the connector pins to achieve circuit continuity testing.

[0035] However, to achieve stable placement of the base, the structure of the base's bottom needs to be disclosed in detail, such as... Figure 4 As shown, the bottom surface of the base is covered with a rectangular array of rubber suction cups. The top of the rubber suction cups is connected to the base by bolts. The rubber suction cups are made of elastic material. When pressed onto the flat surface, the internal air is squeezed out to form a negative pressure chamber. Atmospheric pressure is used to make the suction cups fit tightly against the contact surface, thereby ensuring the stability of the base when it is placed.

[0036] When this utility model USB connector electrical performance testing bench is used in practice:

[0037] The base is attached to the workbench by the rubber suction cup on the bottom to ensure the stability of the test bench. The tester body is connected to one side of the wire harness. The wires are passed through the circular groove of the wire harness and electrically connected to the probe plate. The wire harness is used to fix the position of the wires to avoid messy wires interfering with the test.

[0038] Place the USB connector in the groove inside the placement plate and close the sealing cover to secure it. At the same time, the controller issues a command to control the two electric telescopic rods to start synchronously, driving the clamping plate to move towards the placement plate. The telescopic parts at both ends of the clamping plate act as guides to ensure that the clamping plate moves smoothly and avoids deviation. When the clamping plate approaches the placement plate, the damping parts take effect, and the damping telescopic rods slow down the movement speed of the clamping plate. The rubber compression plate first contacts and compresses the probe plate, providing buffer through elastic deformation, so that the probe plate contacts the USB connector with appropriate pressure, ensuring that the probe and connector pins are reliably connected without damaging the connector or probe due to excessive pressure.

[0039] After the probe plate makes good contact with the USB connector, the tester body performs electrical performance tests on the USB connector through the wires and the probe plate, checking various electrical parameters such as conductivity, insulation, and signal transmission quality. After the test is completed, the controller controls the electric telescopic rod to retract, moving the clamping plate away from the placement plate, opening the sealing cover on the placement plate, and taking out the tested USB connector, thus completing one test cycle. If further testing is required, the above steps should be repeated.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A USB connector electrical performance testing bench, comprising a base (100), characterized in that: A wire harness (200) is fixedly connected to one side of the base (100), and a clamping test assembly (300) is provided on the top of the base (100); The clamping test assembly (300) includes two electric telescopic rods (301) fixedly connected to the two sides of the top surface of the base (100). Each of the two electric telescopic rods (301) is fixedly connected to a clamping plate (302) at one end. A damping element (303) is fixedly connected to one side of the clamping plate (302), and a probe plate (304) is elastically connected to the clamping plate (302) through the damping element (303). A placement plate (305) is fixedly connected to the middle of the top surface of the base (100).

2. The USB connector electrical performance test bench according to claim 1, characterized in that: The base (100) has a tester body (101) on one side where the cable harness (200) is installed, and the tester body (101) is electrically connected to a wire (102).

3. The USB connector electrical performance test bench according to claim 2, characterized in that: The wire (102) passes through the wire harness (200) and is connected to the probe plate (304). The wire harness (200) has circular grooves arranged in a linear array to fix the position of the wire (102).

4. The USB connector electrical performance test bench according to claim 1, characterized in that: Each of the two electric telescopic rods (301) has a fixed block fixedly connected to one end away from the clamping plate (302). The bottom surface of the fixed block is connected to the top surface of the base (100). Both electric telescopic rods (301) are controlled by a controller to ensure that the two electric telescopic rods (301) move synchronously.

5. The USB connector electrical performance test bench according to claim 1, characterized in that: Both ends of the clamping plate (302) are fixedly connected to telescopic members. The telescopic rod includes an inner rod that is fixedly connected to both ends of one side of the clamping plate (302). One end of the inner rod is fixedly connected to an outer rod, and the end of the outer rod away from the clamping plate (302) is fixedly connected to a fixing plate. The bottom surface of the fixing plate is also connected to the top surface of the base (100).

6. The USB connector electrical performance test bench according to claim 1, characterized in that: The damping element (303) includes a damping telescopic rod (3031) fixedly connected to the other side of the clamping plate (302) and a rubber compression plate (3032) fixedly connected to the top of the other side of the clamping plate (302), the rubber compression plate (3032) being located above the damping telescopic rod (3031). The top of the placement plate (305) is hinged to a sealing cover (3041), and the interior of the placement plate (305) has a groove for placing multiple USB connectors.

7. The USB connector electrical performance test bench according to claim 1, characterized in that: The bottom surface of the base (100) is provided with a rectangular array of rubber suction cups, and the top of the rubber suction cups is connected to the base (100) by bolts.

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