Hot plug test device

Abstract

The utility model discloses a hot plug test device, and relates to the field of hot plug tests. The hot plug test device comprises a control box, a moving part and a connecting part, wherein the control box comprises a box body; the moving part is installed on the box body, and the connecting part is arranged on the outer side of the box body. The moving part is provided with a moving end and a mounting end, and the mounting end is arranged in the moving direction of the moving end; the connecting part is provided with at least one test unit, and the test unit comprises a female end wire harness, a probe piece, a connector and a male end wire harness. According to the utility model, the female end wire harness is suitable for being electrically connected with the host end, the male end wire harness is suitable for being electrically connected with the equipment end, the probe piece is installed at the mobile end, and the connector is fixedly connected at the installation end, so that the test can be implemented, the probe piece and the connector can be accurately aligned and connected or separated, and the test efficiency and the automation degree are high; and an expected test environment for rapidly interrupting / connecting the signal can be effectively simulated.

Description

Technical Field

[0001] The utility model relates to the field of hot plug testing, and particularly relates to a hot plug testing device. Background Art

[0002] With the continuous development of vehicle intelligence, there are more and more devices such as cameras and screens on the vehicle. The connection between these devices is usually docked by a connector to achieve the purpose of conducting electricity and transmitting signals. Taking the Fakra connector as an example, during the operation of the Fakra connector, under extremely harsh conditions, the mechanical structure may have a short-term poor contact, resulting in signal transmission interruption. After getting rid of the harsh conditions, the system hardware and software need to recover to normal in a timely and rapid manner. Therefore, during the product development process, it is necessary to actively configure the test environment to simulate the process of reconnection after the connection of the Fakra connector for verification.

[0003] In the current test equipment, the docking and separation between the connector structures mainly rely on manual operation to implement the test. When the connector is connected, it is necessary for the operator to accurately align and dock the connector manually. When the connector is separated, it is necessary for the operator to disassemble the connector along the opposite direction of alignment. It is inconvenient to actually process and operate multiple connectors, with a large labor intensity, resulting in low test efficiency and making it difficult to effectively simulate the expected test environment of rapid interruption / connection signals. Summary of the Utility Model

[0004] To solve the technical problems raised in the above background art, the utility model provides a hot plug testing device, including:

[0005] A control box, including a box body;

[0006] A moving part, installed on the box body, the moving part is configured with a mobile end and a mounting end, and the mounting end is arranged in the moving direction of the mobile end;

[0007] And a connecting part, arranged outside the box body, the connecting part is provided with at least one test unit, the test unit includes a female end wire harness, a probe, a connector and a male end wire harness. The female end wire harness is suitable for conductive connection with the host end, the male end wire harness is suitable for conductive connection with the device end, the probe is installed on the mobile end, the connector is fixedly connected to the mounting end, one end of the probe is detachably connected to the female end wire harness, the other end of the probe is suitable for contacting the connector, and the connector is detachably connected to the male end wire harness.

[0008] As a preferred technical solution, the moving part includes a slide table, a driving assembly and a bracket. The slide table and the bracket are fixedly arranged at the upper end of the box body. The driving assembly is installed on the slide table, and the probe is arranged at the driving end of the driving assembly. The driving assembly is configured as a mechanism capable of driving the probe to move in both forward and reverse directions;

[0009] The bracket and the slide table are arranged at intervals. The upper end of the bracket is configured to form the installation end, and the connector is connected to the upper end of the bracket.

[0010] As a preferred technical solution, the driving assembly includes a driving member, a ball screw and a moving block. The ball screw is arranged at the driving end of the driving member. Both ends of the ball screw are rotatably configured with the slide table. The moving block is sleeved on the ball screw in a transmission manner, and the probe is installed on the moving block.

[0011] As a preferred technical solution, the control box further includes a power supply, a slide table controller, a sliding driver and a Raspberry Pi controller, at least part of which are arranged in the box body; the Raspberry Pi controller is electrically connected to the slide table controller to output a Raspberry Pi signal to the slide table controller, the slide table controller is electrically connected to the sliding driver to output a driving signal to the sliding driver, the power supply is electrically connected to the slide table controller, and the power supply is electrically connected to the Raspberry Pi controller.

[0012] As a preferred technical solution, the control box further includes:

[0013] An LED warning lamp, which is fixedly connected to the box body and is electrically connected to the power supply component and the Raspberry Pi controller; and / or

[0014] A buzzer, which is fixedly connected to the box body and is electrically connected to the power supply component and the Raspberry Pi controller.

[0015] As a preferred technical solution, the connecting component further includes a connecting frame, which is detachably arranged on the moving block, the probe is detachably arranged on the connecting frame, at least one probe is arranged on the connecting frame, and the number of probes corresponds to the number of connectors on the bracket.

[0016] As a preferred technical solution, the connecting frame is arranged in an L-shaped structure. The connecting frame includes a first connecting plate and a second connecting plate. The first connecting plate is detachably connected to the moving block, the second connecting plate is detachably connected to the probe, and a plurality of assembly holes for the probe to pass through are arranged on the second connecting plate.

[0017] As a preferred technical solution, the extension plane of the second connecting plate is arranged parallel to the extension plane of the bracket, and the extending direction of the probe member is arranged perpendicular to the extension plane of the second connecting plate.

[0018] As a preferred technical solution, three sets of the test units are provided.

[0019] As a preferred technical solution, the probe member is provided as an elastic probe, and the elastic probe is configured with an elastic buffer stroke.

[0020] The technical solution provided by the present utility model has the following advantages:

[0021] The hot-swap test device provided by the present utility model includes a control box, a moving component, and a connecting component. The control box includes a box body; the moving component is installed on the box body, and the connecting component is arranged outside the box body; the moving component is configured with a mobile end and a mounting end, and the mounting end is arranged in the moving direction of the mobile end; the connecting component is provided with at least one test unit, and the test unit includes a female-end wire harness, a probe member, a connector, and a male-end wire harness.

[0022] For the hot-swap test device with this structure, the female-end wire harness is adapted to be conductively connected to the host end, the male-end wire harness is adapted to be conductively connected to the device end, the probe member is installed on the mobile end, and the connector is fixedly connected to the mounting end, and then the test can be implemented. The probe member and the connector can be accurately aligned for connection or separation. The test efficiency and automation degree of the present utility model are high, and it can effectively simulate the test environment of the desired fast interrupt / connection signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the hot-swap test device provided by the present utility model;

[0025] Figure 2 It is a schematic connection diagram of the moving component and the connecting component in the hot-swap test device provided by the present utility model;

[0026] Figure 3 It is a schematic separation diagram of the moving component and the connecting component in the hot-swap test device provided by the present utility model;

[0027] Figure 4Schematic connection diagram of the connection frame and the probe member in the hot plug test device provided by the present utility model;

[0028] Figure 5 Schematic structural diagram of the probe member in the hot plug test device provided by the present utility model;

[0029] Figure 6 Schematic structural diagram of the bracket and the connector in the hot plug test device provided by the present utility model;

[0030] Figure 7 Schematic structural diagram of the connector in the hot plug test device provided by the present utility model;

[0031] Figure 8 Schematic structural diagram of the control box in the hot plug test device provided by the present utility model;

[0032] Explanation of reference numerals:

[0033] 1 - Control box; 11 - Power supply; 12 - Slide table controller; 13 - Sliding driver; 14 - Raspberry Pi controller; 15 - Box body; 16 - LED warning light; 17 - Buzzer;

[0034] 2 - Moving part; 21 - Slide table; 22 - Ball screw; 23 - Moving block; 24 - Connection frame; 25 - Bracket;

[0035] 3 - Connection component; 31 - Female end wire harness; 32 - Probe member; 33 - Connector; 34 - Male end wire harness. Detailed implementation manners

[0036] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] Embodiment

[0041] This embodiment provides a hot-plug test device. Refer to Figure 1 , the hot-plug test device includes a control box 1, a moving component 2, and a connecting component 3; the control box 1 includes a box body 15, the moving component 2 is installed on the box body 15, and the connecting component 3 is arranged outside the box body 15.

[0042] In this embodiment, refer to Figure 2 and Figure 3 , the connecting component 3 is provided with one or more test units. The test unit includes a female terminal wire harness 31, a probe member 32, a connector 33, and a male terminal wire harness 34. Among them, the female terminal wire harness 31 is adapted to be conductively connected to the host end, the male terminal wire harness 34 is adapted to be conductively connected to the device end, the probe member 32 is installed on the mobile end, the connector 33 is fixedly connected to the installation end, one end of the probe member 32 is detachably connected to the female terminal wire harness 31, the other end of the probe member 32 is adapted to contact the connector 33, and the connector 33 and the male terminal wire harness 34 are detachably connected.

[0043] In a specific embodiment, refer to Figure 5 , the probe member 32 is set as an elastic probe, and the elastic probe is configured with an elastic buffer stroke. With this setting, the docking contact between the probe member 32 and the connector 33 is damped by the elastic buffer stroke, strengthening the stability during the movement test stage. Using the probe member 32 for hot-plug testing can reduce the damage to the original device interface, and its docking effect is good.

[0044] In this embodiment, the moving component 2 is configured with a mobile end and an installation end, and the installation end is arranged in the moving direction of the mobile end; in a specific embodiment, refer to Figure 2 , Figure 3 and Figure 6, the moving part 2 includes a slide table 21, a driving assembly, and a bracket 25. The slide table 21 and the bracket 25 are fixedly arranged at the upper end of the box body 15. The driving assembly is installed on the slide table 21, and the probe member 32 is arranged at the driving end of the driving assembly. The driving assembly is configured as a mechanism capable of driving the probe member 32 to move in both forward and reverse directions; the bracket 25 and the slide table 21 are arranged at intervals, and the upper end of the bracket 25 is constructed to form a mounting end, and the connector 33 is connected to the upper end of the bracket 25.

[0045] As a further implementation manner, refer to Figure 2 and Figure 3 , the driving assembly includes a driving member (not shown in the figure), a ball screw 22, and a moving block 23. The ball screw 22 is arranged at the driving end of the driving member. The two ends of the ball screw 22 are respectively rotatably configured with the slide table 21. The moving block 23 is sleeved on the ball screw 22 in a transmission manner. The probe member 32 is installed on the moving block 23, and the moving end can be constructed and arranged at the upper end of the moving block 23. In a specific implementation manner, the driving member can be set as a driving motor, and the ball screw 22 is arranged at the output end of the driving motor. In this implementation manner, the ball screw 22 is adopted, and the insertion and extraction stroke accuracy of controlling the moving end to drive the probe member 32 to move is higher, which is beneficial to improving the accuracy of the test results.

[0046] As a further implementation manner, refer to Figure 8 , the control box 1 further includes a power supply 11, a slide table controller 12, a slide driver 13, and a Raspberry Pi controller 14; the power supply 11 is used to supply power to the overall device. The power supply 11 is electrically connected to the slide table controller 12, and the power supply 11 is electrically connected to the Raspberry Pi controller 14. Among them, the Raspberry Pi controller 14 is connected to the slide table controller 12 and the host end to read the host end information to judge whether the functions of the vehicle-mounted system are restored normally and whether the image can be displayed normally after the probe member 32 and the connector 33 are connected. The Raspberry Pi controller 14 is electrically connected to the slide table controller 12 to output a Raspberry Pi signal to the slide table controller 12. The slide table controller 12 receives the Raspberry Pi signal. The slide table controller 12 is set as a programmable device to adjust the moving distance, time, and speed of the moving block 23 on the slide table 21. After the adjustment is completed, it drives the probe to move synchronously closer to / away from the connector 33 on the bracket 25. The slide table controller 12 is electrically connected to the slide driver 13 to output a driving signal to the slide driver 13. The slide driver 13 drives and controls the movement of the moving block 23 by identifying the driving signal.

[0047] As a further implementation manner, refer to Figure 8, the control box 1 further includes an LED warning light 16 and a buzzer 17. The LED warning light 16 is fixedly connected to the box body 15, and the LED warning light 16 is electrically connected to the power supply 11 and the Raspberry Pi controller 14; the buzzer 17 is fixedly connected to the box body 15, and the buzzer 17 is electrically connected to the power supply 11 and the Raspberry Pi controller 14. When the probe member 32 is docked with the connector 33, the Raspberry Pi controller 14 automatically recognizes the unconnected situation, and the LED warning light 16 and the buzzer 17 play a role of outputting optical and acoustic prompts, without the need for manual real-time monitoring.

[0048] In a specific embodiment, the box body 15 is made of acrylic material, which can play a role in protecting and supporting the devices in the inner cavity of the box body 15.

[0049] In some embodiments, refer to Figure 4 , the connecting component 3 further includes a connecting frame 24. The connecting frame 24 is detachably arranged on the moving block 23, the probe member 32 is detachably arranged on the connecting frame 24, one or more probe members 32 are arranged on the connecting frame 24, and the number of the probe members 32 corresponds to the number of the connectors 33 on the bracket 25.

[0050] In a specific embodiment, three sets of test units are provided. The probe members 32 in the three sets of test units are arranged side by side at intervals, and the connectors 33 in the three sets of test units are arranged side by side at intervals.

[0051] As a further embodiment, refer to Figure 4 , the connecting frame 24 is arranged in an L-shaped structure. The connecting frame 24 includes a first connecting plate and a second connecting plate. The first connecting plate is detachably connected to the moving block 23, the second connecting plate is detachably connected to the probe member 32, and a plurality of assembly holes for the probe member 32 to pass through are provided on the second connecting plate.

[0052] In a specific embodiment, the extending plane of the second connecting plate is parallel to the extending plane of the bracket 25, and the extending direction of the probe member 32 is perpendicular to the extending plane of the second connecting plate. Of course, loading holes for installing the connectors 33 can be provided on the bracket 25. The extending direction of the probe member 32 can be set to the horizontal direction.

[0053] In the hot-swap test device provided in this embodiment, during the test working process of the host end and the device end, the driving component in the moving component 2 drives the probe member 32 to approach and contact the connector 33 to connect signals or move away from the connector 33 to interrupt signals, and can quickly implement the adjustment and configuration of interrupt / connection signals. After the signals are reconnected, it can detect whether the signals can quickly return to normal, such as being applied to detect whether the video image signals of the in-vehicle and out-of-vehicle monitoring devices can quickly return to normal.

[0054] In a specific embodiment, refer to Figures 4 to 7, the female end wire harness 31 can be set as an HFM female end - SMA wire harness. The HFM female end can be connected to the connection side on the host side, such as mini fakra. Among them, the SMA connection end is provided with an internal thread to connect with the probe member 32. The front end of the probe member 32 can be connected and matched with the SMA - SMA - KKF interface of the connector 33. Its tail end has an external thread and can be connected to the internal thread of the SMA connection end. The front end of the connector 33 is set as an SMA hole, and its tail end is an external thread to be connected to the internal thread of the SMA connection end. The male end wire harness 34 is set as an HFM male end - SMA wire harness. Among them, the HFM male end can be connected to the connection side on the device side, such as mini fakra. The internal thread of the SMA connection end can be connected to the external thread at the tail end of the connector 33. The SMA hole of the connector 33 can be made of a material with good wear resistance to meet the test requirements of repeated plugging and unplugging. In this embodiment, the SMA wire harness is adopted, which can better be compatible with the mini fakra of other different devices and hosts, so as to test different projects.

[0055] The hot - plug test device provided by the utility model works as follows:

[0056] First, connect the female end wire harness 31 to the host end and the male end wire harness 34 to the device end. Any test unit is conductively set so that the host end and the device end reach the normal working state.

[0057] After that, operate the Raspberry Pi controller 14 to send a signal, so that the mobile end of the moving part 2 drives the probe member 32 to perform forward and reverse displacement movements; when the probe member 32 is connected to the connector 33, the Raspberry Pi controller 14 judges and records whether the judgment system is normally powered on and whether the image is normally displayed. If it is normal, continue to control the mobile end of the moving part 2 to drive the probe member 32 to move away from the connector 33 in the reverse direction to disconnect from the connector 33; after setting an interval time, such as 5 seconds, control the mobile end to drive the probe member 32 to move forward again so that the probe member 32 and the connector 33 are in contact connection. The Raspberry Pi controller 14 judges and records whether the judgment system is normally powered on and whether the image is normally displayed. If it is normal, repeat the above forward and reverse movements, and the Raspberry Pi controller 14 will record the number of reciprocations. If it is not normal, the Raspberry Pi controller 14 sends an abort signal to the slide table controller 12 to stop the movement of the mobile end, and at the same time controls the LED alarm light to light up and the buzzer 17 to emit an alarm sound.

[0058] In the above description, the hot - plug test device can be used for the connection test of in - vehicle and out - vehicle monitoring image signals. Of course, it can also be used in the test environment of signals between other hosts and devices.

[0059] The hot-swap test device provided in this embodiment can improve the test efficiency, automate the control, and has a higher accuracy in recording the number of interruptions / connections. The test device provided in this embodiment is small in size and can be flexibly placed in different working environments.

[0060] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A hot-swap test device, characterized in that: include: A control box (1), comprising a box body (15); A moving component (2) is mounted on the box (15), wherein the moving component (2) is provided with a moving end and a mounting end, and the mounting end is arranged in the moving direction of the moving end; And a connecting component (3) is arranged on the outside of the box (15), the connecting component (3) is provided with at least one test unit, the test unit includes a female end wiring harness (31), a probe component (32), a connector (33) and a male end wiring harness (34), the female end wiring harness (31) is suitable for conductive connection with the host end, the male end wiring harness (34) is suitable for conductive connection with the device end, the probe component (32) is installed on the mobile end, the connector (33) is fixedly connected to the installation end, one end of the probe component (32) and the female end wiring harness (31) are detachably connected, the other end of the probe component (32) is suitable for contacting with the connector (33), and the connector (33) and the male end wiring harness (34) are detachably connected.

2. The hot-swap test device according to claim 1, characterized in that: The moving component (2) comprises a slide (21), a driving assembly and a bracket (25); the slide (21) and the bracket (25) are fixedly arranged at the upper end of the box (15); the driving assembly is installed on the slide (21); the probe member (32) is arranged at the driving end of the driving assembly; and the driving assembly is configured as a mechanism capable of driving the probe member (32) to move in both forward and reverse directions; The bracket (25) and the slide (21) are arranged at intervals, the upper end of the bracket (25) is structured to form the mounting end, and the connector (33) is connected to the upper end of the bracket (25).

3. The hot-swap test device according to claim 2, characterized in that: The driving assembly comprises a driving member, a ball screw (22) and a moving block (23); the ball screw (22) is arranged at the driving end of the driving member; the two ends of the ball screw (22) are respectively configured to rotate with the slide table (21); the moving block (23) is transmission-connected to the ball screw (22); and the probe member (32) is mounted on the moving block (23).

4. The hot-swap test device according to claim 3, characterized in that: The control box (1) further comprises a power supply (11), a slide controller (12), a sliding drive (13) and a Raspberry Pi controller (14) at least partially arranged in the box body (15); the Raspberry Pi controller (14) is electrically connected to the slide controller (12) to output a Raspberry Pi signal to the slide controller (12), the slide controller (12) is electrically connected to the sliding drive (13) to output a driving signal to the sliding drive (13), the power supply (11) is electrically connected to the slide controller (12), and the power supply (11) is electrically connected to the Raspberry Pi controller (14).

5. The hot-swap test device according to claim 4, characterized in that: The control box (1) further comprises: An LED warning light (16), wherein the LED warning light (16) is fixedly connected to the box (15), and the LED warning light (16) is electrically connected to the power supply (11) and the Raspberry Pi controller (14); and / or A buzzer (17), wherein the buzzer (17) is fixedly connected to the box (15), and the buzzer (17) is electrically connected to the power supply (11) and the Raspberry Pi controller (14).

6. The hot-swap test device according to claim 3, characterized in that: The connecting component (3) further comprises a connecting frame (24), wherein the connecting frame (24) is detachably arranged on the moving block (23), and the probe member (32) is detachably arranged on the connecting frame (24), and at least one probe member (32) is arranged on the connecting frame (24), and the number of the probe members (32) and the number of the connectors (33) on the bracket (25) are arranged correspondingly.

7. The hot-swap test device according to claim 6, characterized in that: The connecting frame (24) is configured as an L-shaped structure, and comprises a first connecting plate and a second connecting plate, wherein the first connecting plate and the moving block (23) are detachably connected, and the second connecting plate and the probe member (32) are detachably connected, and the second connecting plate is provided with a plurality of assembly holes for the probe member (32) to pass through.

8. The hot-swap test device according to claim 7, characterized in that: The extension plane of the second connecting plate is arranged in parallel with the extension plane of the bracket (25), and the extension direction of the probe member (32) is arranged perpendicular to the extension plane of the second connecting plate.

9. The hot-swap test device according to any one of claims 1 to 8, characterized in that: The test units are provided in three groups.

10. The hot-swap test device according to any one of claims 1 to 8, characterized in that: The probe member (32) is configured as an elastic probe, and the elastic probe is provided with an elastic buffer stroke.

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