A quick plug-in / plug-out testing device for a Mini USB connector

CN224802856UActive Publication Date: 2026-09-25LIJUN TECH (HEYUAN) CO LTD
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Patent Information

Application Number
CN202521905345.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-09-25
Estimated Expiration
2035-09-04

AI Technical Summary

Technical Problem

[0003]现有技术中,传统的Mini USB连接器拔插测试装置,大多采用机械驱动的方式对连接器进行预设次数的插拔操作,随后通过通电检测方式判断其电气导通性能是否正常,这种测试方法虽然可测试连接器的基本电气通断情况,但难以判断连接器是否存在插拔阻力异常、卡滞或松动等质量问题;另外,部分Mini USB连接器拔插测试装置的结构较为复杂、体积庞大,不适用于小型化、批量化的生产需求

Benefits of technology

[0022]本实用新型通过伸缩气缸带动连接器公头与连接器母头进行自动插拔,在插拔过程中,拉压力传感器可实时采集连接器公头插入和拔出过程中的拉力或压力,并将数据传送给控制器,同时,测试电路板也在每一次插入动作后检测连接器公头与连接器母头之间的电气导通状态,控制器对采集到的力值数据和电气导通状态进行分析,并将拔插次数和对应的拉压力数值通过显示器显示出来,这样不仅可自动完成反复插拔测试,还可实时监测机械拉压力和电气连接情况,从而精准评估连接器在使用过程中的磨损情况和电气导通性能变化。

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Abstract

The utility model discloses a quick plug -in test device of mini USB connector, including frame, telescopic cylinder, tension and pressure sensor, connector male, controller and connector female, connector female and test circuit board electric connection, the movable end of telescopic cylinder is connected with tension and pressure sensor one end through mounting panel, and the other end of tension and pressure sensor is connected with male fixed base, and test circuit board, tension and pressure sensor and display are electric connection with controller respectively, and the display is used to show the plug -in times and tension and pressure numerical value in the display plug -in process. The utility model discloses through telescopic cylinder drive connector male and connector female automatic plug -in, and tension and pressure sensor can gather the force value in real time, and detect electrical conduction state through test circuit board, and the controller can judge the wear degree and performance change of connector according to the plug -in times, force value change and conduction state comprehensive, to accurate evaluation connector's service life and reliability.
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Description

Technical Field

[0001] This utility model relates to the field of plug-in / plug-out testing devices, and more particularly to a quick plug-in / plug-out testing device for a Mini USB connector. Background Technology

[0002] Mini USB connectors are miniaturized universal serial bus interfaces used in portable electronic devices. They are characterized by their small size, stable connection, and high transmission efficiency. They are commonly used for data transmission and power connection between mobile devices, digital products, and computers. Since Mini USB connectors need to be frequently plugged and unplugged during use, in order to ensure the stability and durability of Mini USB connectors, plugging and unplugging tests are usually performed on them before the products leave the factory to evaluate their electrical connection reliability and wear resistance.

[0003] In existing technologies, traditional Mini USB connector plug-in / plug-out testing devices mostly use mechanical drive to perform a preset number of plug-in / plug-out operations on the connector, and then use power-on detection to determine whether its electrical conductivity is normal. Although this testing method can test the basic electrical continuity of the connector, it is difficult to determine whether the connector has quality problems such as abnormal plugging / plugging resistance, jamming, or loosening. In addition, some Mini USB connector plug-in / plug-out testing devices have a relatively complex structure and large size, which is not suitable for the needs of miniaturized and mass production.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a quick plugging and unplugging test device for Mini USB connectors that can detect plugging and unplugging resistance, has a compact structure, and is easy to use.

[0006] The technical solution of this utility model is as follows: A quick plug-in / plug-out testing device for a Mini USB connector includes a base, a telescopic cylinder, a tension / compression sensor, a male connector, a controller, a display, and a female connector; the base is provided with a female connector fixing seat, the female connector fixing seat is provided with a test circuit board, and the female connector is electrically connected to the test circuit board;

[0007] The telescopic cylinder is mounted on the machine base, and the movable end of the telescopic cylinder is connected to one end of the tension / compression sensor via a mounting plate, while the other end of the tension / compression sensor is connected to the male head fixing seat.

[0008] The male connector is detachably mounted on the male connector mounting base, and the telescopic cylinder is used to drive the male connector to insert into or detach from the female connector.

[0009] The tension or pressure sensor is used to detect the tension or pressure of the male connector during insertion and removal.

[0010] The controller is located inside the base, and the display is located on the side wall of the base. The test circuit board, the tension and compression sensor, and the display are electrically connected to the controller. The display is used to display the number of insertions and removals and the tension and compression values ​​during the insertion and removal process.

[0011] The Mini USB connector quick plug-in / plug-out testing device, which adopts the above technical solution, also includes a connecting frame, a guide rod, and a sliding bearing.

[0012] The movable end of the telescopic cylinder is connected to the mounting plate via the connecting frame;

[0013] The guide rod is located at the side end of the connecting frame, and the sliding bearing is located on both sides of the connecting frame and is connected to the guide rod by a sleeve. The connecting frame is used to reciprocate along the extension direction of the guide rod as pushed by the telescopic cylinder. Using the above technical solutions, the quick plug-in / plug-out testing device for the Mini USB connector achieves the desired results.

[0014] The Mini USB connector quick plug-in / plug-out testing device, which employs the above-mentioned technical solutions, also includes a limit sensor and a sensing plate.

[0015] The limit sensor is mounted on the base and is electrically connected to the telescopic cylinder via the controller. The sensing plate is mounted on the connecting frame and is used to sense and connect with the limit sensor when the male connector is inserted into the female connector.

[0016] The Mini USB connector quick plug-in / plug-out testing device, which adopts the above technical solutions, also includes a start button and a stop button. The start button and the stop button are located on the base on both sides of the display, and the start button and the stop button are electrically connected to the controller.

[0017] In the aforementioned technical solutions, the quick plug-in / plug-out testing device for the Mini USB connector has a positioning groove on the male connector fixing seat, and the male connector is embedded in the positioning groove.

[0018] A limiting cover is provided above the positioning groove, and the limiting cover is used to prevent the male connector from moving in the positioning groove.

[0019] The MiniUSB connector quick plug-in / plug-out testing device, which employs the above-mentioned technical solutions, also includes a protective cover. The protective cover is connected to the base by a flip-down mechanism and is used to close or open the telescopic cylinder.

[0020] In the aforementioned technical solutions, the MiniUSB connector quick-plug test device has a cooling fan on the side wall of the base, which is used to dissipate heat from the base.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention uses a telescopic cylinder to automatically insert and remove the male and female connector heads. During the insertion and removal process, a tension / compression sensor collects the tension or pressure during the insertion and removal of the male connector head and transmits the data to the controller. Simultaneously, the test circuit board detects the electrical continuity between the male and female connector heads after each insertion action. The controller analyzes the collected force data and electrical continuity status and displays the number of insertions and removals and the corresponding tension / compression values ​​on the display. This not only automatically completes repeated insertion and removal tests but also monitors the mechanical tension / compression and electrical connection status in real time, thereby accurately assessing the wear and tear and changes in electrical continuity performance of the connector during use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0027] Figure 3This is a schematic diagram of the protective cover of this utility model in the open state.

[0028] Figure 4 This is a schematic diagram of the male connector mounting structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the connector female head mounting structure of this utility model. Detailed Implementation

[0030] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 5As shown, this embodiment provides a quick plug-in / plug-out testing device for a Mini USB connector, including a base 1, a telescopic cylinder 2, a tension / compression sensor 3, a male connector 41, a controller, a display 5, and a female connector 42. The base 1 is provided with a female connector fixing seat 43, and a test circuit board 44 is provided on the female connector fixing seat 43. The female connector 42 is electrically connected to the test circuit board 44. The telescopic cylinder 2 is mounted on the base 1, and the movable end of the telescopic cylinder 2 is connected to one end of the tension / compression sensor 3 via a mounting plate 21. The other end of the tension / compression sensor 3 is connected to the male connector fixing seat 45. The male connector 41 is detachably mounted on the male connector fixing base 45. The telescopic cylinder 2 is used to drive the male connector 41 to insert into or detach from the female connector 42. The tension / compression sensor 3 is used to detect the tension or pressure of the male connector 41 during insertion and removal. The controller is located inside the base 1. The display 5 is located on the side wall of the base 1. The test circuit board 44, the tension / compression sensor 3, and the display 5 are electrically connected to the controller. The display 5 is used to display the number of insertions and removals and the tension / compression values ​​during the insertion and removal process. Before the testing process, the male connector 41 can be installed on the male connector mounting base 45, and the female connector 42 can be fixed in the female connector mounting base 43. Electrical connection is achieved through the test circuit board 44. Then, the telescopic cylinder 2 is activated, pushing the piston rod to reciprocate. The piston rod drives the tension and pressure sensor 3 to move through the mounting plate 21, thereby driving the male connector 41 to insert and remove from the female connector. During the insertion and removal process, the tension and pressure sensor 3 can collect the tension or pressure during the insertion and removal of the male connector 41 in real time and transmit the data to the controller. At the same time, the test circuit board 44 also detects the electrical continuity status between the male connector 41 and the female connector 42 after each insertion action. The controller analyzes and processes the collected force data and electrical continuity status, and displays the number of insertions and removals and the corresponding tension and pressure values ​​on the display 5. In this way, repeated insertion and removal tests can be automatically completed, and mechanical tension and pressure and electrical connection status can be monitored in real time, thereby accurately assessing the wear and electrical continuity performance changes of the connector during use.

[0034] like Figure 4As shown, it further includes a connecting frame 61, a guide rod 62, and a sliding bearing 63. The movable end of the telescopic cylinder 2 is connected to the mounting plate 21 through the connecting frame 61. The guide rod 62 is located on the side of the connecting frame 61. The sliding bearing 63 is located on both sides of the connecting frame 61 and is connected to the guide rod 62 by sleeve. The connecting frame 61 is used to reciprocate along the extension direction of the guide rod 62 as the telescopic cylinder 2 is pushed. This arrangement can prevent the mounting plate 21 from tilting or shaking during the movement, thereby improving the accuracy of the insertion and removal action and avoiding poor contact due to movement deviation.

[0035] like Figure 4 As shown, further, it also includes a limit sensor 64 and a sensing plate 65. The limit sensor 64 is disposed on the base 1 and is electrically connected to the telescopic cylinder 2 through the controller. The sensing plate 65 is disposed on the connecting frame 61 and is used to sense and connect with the limit sensor 64 when the male connector 41 is inserted into the female connector 42. When the telescopic cylinder 2 pushes the connecting frame 61 forward, causing the male connector 41 to be inserted into the female connector 42, the sensing plate 65 will generate a sensing signal with the limit sensor 64 when it approaches the predetermined position. At this time, the controller can determine whether the current insertion action has been completed, and thus accurately control the movement stroke of the telescopic cylinder 2 to prevent over-insertion or under-insertion.

[0036] like Figure 1 and Figure 3 As shown, it further includes a start button 51 and a stop button 52, which are located on the base 1 on both sides of the display 5. The start button 51 and the stop button 52 are electrically connected to the controller. The start button 51 is used to send a start command to trigger the controller to start the test procedure; the stop button 52 is used to terminate the operation of the device, thereby improving the safety and operational flexibility of the test process.

[0037] like Figure 4 As shown, furthermore, the male connector fixing seat 45 is provided with a positioning groove 450, and the male connector 41 is embedded in the positioning groove 450. A limiting cover plate 451 is provided above the positioning groove 450, which is used to prevent the male connector 41 from moving in the positioning groove 450. The male connector 41 is embedded in the positioning groove 450 on the male connector fixing seat 45, so that it maintains a stable axial position during the insertion and removal movement, avoiding lateral offset or angular error; the limiting cover plate 451 above the positioning groove 450 can vertically limit the male connector 41 during the insertion and removal process, preventing it from shaking or loosening in the positioning groove 450.

[0038] like Figure 1 and Figure 2 As shown, it further includes a protective cover 7, which is connected to the base 1 by a flip-up mechanism. The protective cover 7 is used to close or open the telescopic cylinder 2. Before testing, the protective cover 7 can be in the open state to facilitate the installation and replacement of the male connector 41. During testing, the protective cover 7 can be flipped to the closed position to completely cover the telescopic cylinder 2 and its moving parts, forming a closed working space. This setting can prevent operators from accidentally contacting the moving parts during testing, avoiding pinching injuries or misoperation, and also prevent foreign objects from entering, improving the operational stability and service life of the device.

[0039] like Figure 2 As shown, the base 1 is further provided with a cooling fan 10 on its side wall. The cooling fan 10 is used to dissipate the heat inside the base 1. This arrangement can prevent the temperature from being too high and affecting the operational stability of the electronic components, so as to meet the requirements of long-term, high-frequency insertion and removal tests.

[0040] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick plug-in / plug-out testing device for a Mini USB connector, characterized in that: Includes a base, telescopic cylinder, tension / compression sensor, male connector, controller, display, and female connector; The base is provided with a female connector mounting base, and the female connector mounting base is provided with a test circuit board. The female connector is electrically connected to the test circuit board. The telescopic cylinder is mounted on the machine base, and the movable end of the telescopic cylinder is connected to one end of the tension / compression sensor via a mounting plate, while the other end of the tension / compression sensor is connected to the male head fixing seat. The male connector is detachably mounted on the male connector mounting base, and the telescopic cylinder is used to drive the male connector to insert into or detach from the female connector. The tension or pressure sensor is used to detect the tension or pressure of the male connector during insertion and removal. The controller is located inside the base, and the display is located on the side wall of the base. The test circuit board, the tension and compression sensor, and the display are electrically connected to the controller. The display is used to display the number of insertions and removals and the tension and compression values ​​during the insertion and removal process.

2. The quick-plug testing device for a Mini USB connector according to claim 1, characterized in that: It also includes a connecting frame, guide rods, and sliding bearings; The movable end of the telescopic cylinder is connected to the mounting plate via the connecting frame; The guide rod is located at the side end of the connecting frame, and the sliding bearing is located on both sides of the connecting frame and is connected to the guide rod by a sleeve. The connecting frame is used to reciprocate along the extension direction of the guide rod as the telescopic cylinder pushes.

3. The quick plug-in / plug-out testing device for a Mini USB connector according to claim 2, characterized in that: It also includes limit sensors and sensing plates; The limit sensor is mounted on the base and is electrically connected to the telescopic cylinder via the controller. The sensing plate is mounted on the connecting frame and is used to sense and connect with the limit sensor when the male connector is inserted into the female connector.

4. The quick-plug testing device for a Mini USB connector according to claim 1, characterized in that: It also includes a start button and a stop button, which are located on the base on both sides of the display, and the start button and the stop button are electrically connected to the controller.

5. The quick-plug testing device for a Mini USB connector according to claim 1, characterized in that: The male connector mounting base is provided with a positioning groove, and the male connector is embedded in the positioning groove; A limiting cover is provided above the positioning groove, and the limiting cover is used to prevent the male connector from moving in the positioning groove.

6. The quick-plug testing device for a Mini USB connector according to claim 3, characterized in that: It also includes a protective cover, which is connected to the base by a flip-up connection, and the protective cover is used to close or open the telescopic cylinder.

7. The quick-plug testing device for a Mini USB connector according to claim 1, characterized in that: The base is equipped with a cooling fan on its side wall, which is used to dissipate heat from inside the base.