A rapid detection tool for power-on detection of plug-in connector connected fuse box
By designing a shape-matching detection module and a microcontroller-controlled rapid detection fixture, the problem of low power-on detection efficiency of connector-type fuse boxes was solved, enabling efficient, safe, and standardized testing of multiple connector models.
Patent Information
- Application Number
- CN202521353478.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-06-30
AI Technical Summary
In the existing technology, the power-on detection efficiency of plug-in connection type fuse boxes is low, making it difficult to adapt to the rapid and accurate detection of various types of plug-in connectors.
A rapid testing fixture was designed, including a testing housing, multiple testing modules and connectors. The testing modules are shaped to match the connectors, equipped with probes and microcontroller control, supporting simultaneous testing of multiple connector models, and displaying the results through a display screen and an alarm.
It improves the efficiency and accuracy of power-on testing of connector-type fuse boxes, reduces the difficulty of mating, supports unified management of multiple connector models, reduces the risk of missed detection, and ensures operational safety and standardized testing procedures.
Smart Images

Figure CN224399580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical testing fixtures, specifically to a rapid testing fixture for testing the electrical continuity of a connector-type fuse box. Background Technology
[0002] Automotive connectors are a type of connector primarily used in the automotive industry. Generally, connectors used in the automotive industry are called automotive connectors. Since automobiles require hundreds of connectors, various types have emerged based on different electrical functions and mounting components. With the increasing popularity of automobiles, people's demands for automotive comfort, safety, and intelligence are rising, leading to a surge in the use of automotive electronic products and a dramatic increase in demand for automotive connectors (including plug-in components).
[0003] Most automobiles require hundreds of connectors, leading to the development of connector-type fuse boxes. These fuse boxes connect to the vehicle's electrical system via their connector interfaces, providing overload and short-circuit protection. Their safety and convenience have resulted in strong market demand. Currently, testing of these fuse boxes primarily involves energizing them to detect overload and short-circuit conditions. Due to the unique insertion and removal methods of the connectors, and the variety of connector types, the efficiency of energizing these fuse boxes is crucial. Utility Model Content
[0004] This utility model provides a rapid testing fixture for testing the power-on status of plug-in connection type fuse boxes, with the aim of improving the testing efficiency of plug-in connection type fuse boxes.
[0005] This utility model is achieved through the following technical solution: a rapid testing fixture for power-on testing of plug-in connection type fuse boxes, including a testing box, multiple sets of testing modules and multiple sets of plug-ins, wherein the multiple sets of testing modules are installed at intervals on the testing box, and the multiple sets of plug-ins are located sequentially within the multiple sets of testing modules and connected to the testing modules;
[0006] The shapes of the multiple sets of connectors and the positions of their internal metal terminals are all different. The shapes of the multiple sets of detection modules are respectively matched with the shapes of the multiple sets of connectors. The detection module is connected to a probe, and the metal terminals in the connector can contact the probe.
[0007] The testing box is equipped with a testing unit for power-on testing of the fuse box, and the probes in the multiple sets of testing modules are all connected to the testing unit.
[0008] Compared with existing technologies, this solution has the following advantages and beneficial effects:
[0009] This solution connects multiple sets of detection modules to the detection box, and the shape of the detection modules matches the shape of the connectors. Therefore, different models of detection modules can be installed on the detection box, which facilitates docking with different models of connectors. Different models of connectors can be adapted to one detection box, reducing the difficulty of docking the connectors with the detection box, thereby improving the versatility of the entire detection fixture and expanding its application range.
[0010] In this solution, the shape of the detection module matches the connector, allowing the connector to be quickly and accurately inserted into the corresponding detection module, reducing the time spent finding the appropriate detection position and adjusting its location. Furthermore, the setup of multiple detection modules and connectors supports simultaneous connection testing of various connector types built into the fuse box, greatly improving the efficiency of fuse box power-on testing.
[0011] The testing chamber features a unified testing unit, with probes from multiple testing modules connected to it. This enables centralized control and data processing of all testing modules, making the testing process more systematic and standardized. The testing unit can simultaneously perform power-on testing and analysis on multiple different types of connectors integrated into the plug-in fuse box and their corresponding connectors on the testing chamber. This facilitates unified management and monitoring of the testing process by operators, further improving testing efficiency and management convenience.
[0012] Furthermore, the detection unit includes a microcontroller, and the detection housing is equipped with a power connector and a power switch. The probe is connected to the microcontroller.
[0013] Beneficial effects: The detection unit in this solution uses a microcontroller as the core control component, which can quickly acquire, analyze and process the detection signals transmitted by the probe.
[0014] Furthermore, a display screen is installed on the detection box, and the display screen is electrically connected to the microcontroller. The microcontroller summarizes the detection results and displays them on the display screen.
[0015] Beneficial effects: The display screen set up in this solution can intuitively display the test results, making it easy to quickly know the test results of each connector.
[0016] Furthermore, an alarm is installed on the detection box, and the alarm is electrically connected to the microcontroller. The microcontroller is used to send a trigger signal to the alarm when the detection result fails, and the alarm issues an alarm prompt after receiving the trigger signal.
[0017] Beneficial effects: This solution can quickly identify products that fail the inspection through an alarm, making it more intuitive. Operators do not need to constantly monitor the display screen and can be aware of abnormalities immediately, reducing the risk of missed detections.
[0018] Furthermore, the detection module has a groove, and the connector can be embedded in the groove.
[0019] Beneficial effects: The groove structure on the detection module in this solution facilitates the installation of connectors, provides an installation space for connectors, and provides precise insertion guidance to ensure the alignment accuracy of the metal terminals and probes.
[0020] Furthermore, each of the detection modules is equipped with a limiting unit for limiting the position of the connector. The limiting unit includes a limiting rod and a motor. The motor is connected to the detection module, and the output shaft of the motor is fixedly connected to the limiting rod. The motor can drive the limiting rod to rotate to lock the connector or drive the limiting rod to rotate away from the connector.
[0021] Beneficial effects: This solution utilizes a limiting unit, where a motor drives the limiting rod to rotate forward and backward, enabling the locking and unlocking of the connector. When the motor is started, the limiting rod moves away from the detection module, facilitating the insertion of the connector into the groove of the detection module. Then, the motor is driven to rotate in reverse, causing the limiting rod to return to the connector position, locking and limiting its movement. This further restricts and secures the connector, making its installation more stable.
[0022] Furthermore, the detection housing is equipped with multiple motor control switches, which are electrically connected to motors installed on multiple sets of detection modules.
[0023] Beneficial effects: In this solution, each motor control switch corresponds to a motor of a detection module. Operators can independently control the locking / unlocking state of any detection unit according to actual needs, and support mixed detection of connectors of different specifications.
[0024] When a detection module malfunctions, the corresponding motor control switch can be turned off independently without affecting the normal operation of other detection modules, ensuring continuous operation of the production line.
[0025] Furthermore, a mounting plate is connected to the end of the motor, and the motor is connected to the detection module through the mounting plate.
[0026] Beneficial effects: The mounting plate in this solution makes it easier to install the motor on the detection module. The mounting plate provides a rigid support surface for the motor, preventing motor displacement caused by vibration from affecting the accuracy of the limit rod's movement.
[0027] Furthermore, both the detection module and the detection housing are made of insulating material.
[0028] Beneficial effects: This design enhances safety. The insulating material blocks the conductive path between the detection module and the housing. Even in the event of internal circuit leakage (such as a damaged motor coil), the housing remains uncharged, ensuring operator safety. It also reduces interference with the detection signal, guaranteeing the accuracy of the detection data.
[0029] Furthermore, the detection enclosure includes an enclosure body and an enclosure cover, the enclosure cover being connected to the enclosure body; the detection module is connected to the enclosure cover, and the detection unit is installed inside the enclosure body.
[0030] Beneficial effects: This setup facilitates separate manufacturing and assembly of individual components. In practice, the testing unit is installed inside the testing box, while the testing box in this solution includes the box body and the box cover. This facilitates the installation of the testing unit. At the same time, the testing module can be pre-wired and functionally debugged on the box cover before being assembled with the box body, reducing on-site installation steps and making it suitable for rapid assembly on production lines during large-scale production.
[0031] Furthermore, when a detection module malfunctions, the module can be directly accessed simply by removing the enclosure cover (without disassembling the entire enclosure), improving equipment maintenance efficiency. When a single detection module is damaged, it can be directly removed and replaced from the enclosure cover without moving the enclosure itself or rewiring. Attached Figure Description
[0032] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0033] Figure 1 This is a front view of an embodiment of a rapid testing fixture for power-on testing of a plug-in connector fuse box according to the present invention;
[0034] Figure 2 This is a schematic diagram of the structure of the detection module and the plug-in in an embodiment of a rapid testing fixture for power-on testing of a plug-in connected fuse box according to the present invention;
[0035] Figure 3 This is a side view of the detection module and the connector in an embodiment of a rapid testing fixture for power-on testing of a connector-type fuse box according to the present invention.
[0036] Figure 4 This is a side view of an embodiment of a rapid testing fixture for power-on testing of a plug-in connector fuse box according to the present invention;
[0037] Figure 5 This is a schematic diagram of the structure of a rapid testing fixture for testing the power-on status of a plug-in type fuse box, which is connected to the fuse box via a connecting wire.
[0038] The attached diagram shows the markings and corresponding component names:
[0039] Detection box 1, box body 100, box cover 101, detection module 2, connector 3, metal terminal 301, limit rod 4, motor 5, mounting plate 501, display screen 6, power switch 7, power connector 8, motor control switch 9, probe 10, microcontroller 11, microcontroller connector 12, connecting wire 13, fuse box 14. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0041] As one embodiment of this application, such as Figures 1-2 As shown, this embodiment provides a rapid testing fixture for power-on testing of plug-in connection type fuse boxes, including a testing box 1, multiple sets of testing modules 2 and multiple sets of plug-in components 3. The multiple sets of testing modules 2 are installed at intervals on the testing box 1, and the multiple sets of plug-in components 3 are located sequentially inside the multiple sets of testing modules 2 and connected to the testing modules 2.
[0042] This embodiment takes the setting of ten sets of detection modules 2 as an example for explanation. The ten sets of detection modules 2 are distributed in two rows on the detection box 1. The detection modules 2 are connected to the detection box 1 by welding, screw connection, embedding, snap-fit or other connection methods. The number of plug-in parts 3 is the same as the number of detection modules 2. The shape of the ten sets of plug-in parts 3 and the position of the metal terminals 301 inside are designed differently, that is, the models of the ten sets of plug-in parts 3 are different. The shape of the ten sets of detection modules 2 is matched with the shape of the ten sets of plug-in parts 3, that is, the model of each detection module 2 is adapted to the model of the ten sets of plug-in parts 3.
[0043] like Figure 1 As shown, in this embodiment, each group of detection modules 2 is numbered with Arabic numerals. Different numbered detection modules 2 correspond to different specifications of connectors 3, ensuring mechanical compatibility when inserting connectors 3. The numbering also makes it easier for connectors 3 to quickly find the corresponding model of detection module 2 for testing.
[0044] Combination Figure 2 and Figure 3 As shown, a probe 10 is connected to the detection module 2, and the metal terminal 301 in the connector 3 can contact the probe 10.
[0045] The test box 1 is equipped with a test unit for testing the power supply of the fuse box 14, and the probes 10 in the multiple test modules 2 are all connected to the test unit.
[0046] In one embodiment, a groove is provided on the detection module 2, and the connector 3 can be embedded in the groove. The groove of the detection module 2 can guide and position the installation of the connector 3, so that the metal terminal 301 of the connector 3 can accurately contact the probe 10 on the detection module 2.
[0047] In one embodiment, such as Figure 2 As shown, the detection unit includes a microcontroller 11, and a power connector 8 and a power switch 7 are installed on the detection housing 1. The power connector 8 is used to connect the power supply, while the power switch 7 is used to control the on / off state of the entire detection fixture circuit.
[0048] The probe 10 is connected to the microcontroller 11. Specifically, the probe 10 on each detection module 2 is soldered to the microcontroller 11.
[0049] The probe 10 on the detection module 2 is designed with a selected probe 10 head size so that the probe 10 can contact the metal terminal 301 in the connector 3. The probe 10 head size (such as diameter and shape) is customized according to the specifications (such as spacing and thickness) of the metal terminal 301 in the connector 3 to ensure that it can be accurately aligned with the terminal contact surface when inserted, and to avoid short circuit due to probe 10 head being too large or poor contact due to probe 10 head being too small.
[0050] In one embodiment, combined Figure 1 , Figure 3 and Figure 4 As shown, each detection module 2 is equipped with a limiting unit for limiting the position of the connector 3. The limiting unit includes a limiting rod 4 and a motor 5. The motor 5 is connected to the detection module 2. In this embodiment, as shown... Figure 3 and Figure 4 As shown, a mounting plate 501 is connected to the end of the motor 5. The mounting plate 501 can be welded to the motor 5 or integrally formed. The motor 5 is connected to the detection module 2 through the mounting plate 501. Specifically, the mounting plate 501 is detachably fixed to the detection module 2 by bolts or screws, thereby realizing the connection between the motor 5 and the detection module 2. The output shaft of the motor 5 is coaxially fixedly connected to the limit rod 4. The output shaft of the motor 5 and the limit rod 4 can be connected by a coupling, a key, or other connection methods.
[0051] Motor 5 can drive limit rod 4 to rotate to lock connector 3 or drive limit rod 4 to rotate to disengage connector 3.
[0052] In one embodiment, the motor 5 is a stepper motor 5, specifically a miniature 90-degree positioning stepper motor 5, which achieves precise 90° angular displacement through stepper control. For each input pulse signal, the rotor of the motor 5 rotates 90 degrees.
[0053] Motor 5 drives limit rod 4 to rotate 90 degrees clockwise. At this time, if Figure 1 As shown, the limiting rod 4 is in a position directly opposite the detection piece to lock the detection piece and ensure the stability of the detection piece installation; when it is necessary to remove or install the detection piece, the motor 5 drives the limiting rod 4 to rotate 90 degrees, at which time the limiting rod 4 is disengaged from the detection piece and does not obstruct the detection piece, making it easy to remove or install the detection piece.
[0054] In one embodiment, such as Figure 1 As shown, ten motor control switches 9 are installed on the detection box 1. The ten motor control switches 9 are electrically connected to the motors 5 installed on the ten sets of detection modules 2. The ten motor control switches 9 are all numbered with Arabic numerals and correspond one-to-one with the serial numbers of the ten detection modules 2. Each motor control switch 9 corresponds to a set of motors 5 of a set of detection modules 2. The operator can independently control the start and stop of the motors 5 of any module.
[0055] In one embodiment, such as Figure 1 As shown, a display screen 6 is mounted on the detection housing 1 by screws. The display screen 6 is an LCD screen and is electrically connected to the microcontroller 11. In this embodiment, it is combined with... Figure 2 As shown, a microcontroller connector 12 is also installed inside the detection box 1. The microcontroller 11 is connected to the display screen 6 through the microcontroller connector 12. The microcontroller connector 12 realizes the electrical connection and signal transmission between the microcontroller 11 and the external device (display screen 6). The microcontroller 11 summarizes the detection results and displays them on the display screen 6.
[0056] In one embodiment, an alarm is installed on the detection box 1. In this embodiment, the alarm is a buzzer. The alarm is electrically connected to the microcontroller 11. The microcontroller 11 is used to send a trigger signal to the alarm when the detection result fails. After receiving the trigger signal, the alarm will issue an alarm prompt.
[0057] In one embodiment, both the detection module 2 and the detection housing 1 are made of insulating material, making them non-conductive and safer. In this embodiment, both the detection module 2 and the detection housing 1 are manufactured from non-conductive bakelite board. The non-conductive material used in the detection module 2 also ensures that the connector 3 is not damaged during insertion and removal.
[0058] In one embodiment, such as Figure 2As shown, the detection box 1 includes a box body 100 and a box cover 101. The box cover 101 is connected to the box body 100. In this embodiment, the box cover 101 and the box body 100 are detachably fixedly connected by screws or bolts, which facilitates assembly and disassembly. The detection module 2 is connected to the box cover 101, and the display screen 6 and the motor control switch 9 are both installed on the box cover 101. The microcontroller 11 is installed inside the box body 100, and the power switch 7 and the power plug are installed on the box body 100.
[0059] The specific implementation process is as follows:
[0060] like Figure 5 As shown, the connector interface built into the fuse box 14 is connected to the corresponding connector 3 via the connecting wire 13. By turning on the device power switch 7, the corresponding detection module 2 number is located according to the shape characteristics of the connector 3. Pressing the motor control switch 9 with the corresponding number causes the stepper motor 5 to rotate, driving the limit rod 4 to rotate 90 degrees, so that the limit rod 4 rotates 90 degrees away from the direction where the connector 3 is installed. At this time, the limit rod 4 does not obstruct the installation of the connector 3, so that the connector 3 is inserted into the groove of the detection module 2, and the metal terminal 301 of the connector 3 contacts the probe 10 on the detection module 2.
[0061] Press the motor control switch 9 under the corresponding number again to make the limit rod 4 rotate 90 degrees in the opposite direction and lock the connector 3. At this time, the limit and fixation of the connector 3 is completed.
[0062] The detection box 1 begins detection. The detection results of the overload and short circuit protection of the fuse box are displayed on the screen 6, which is summarized by the microcontroller 11. If the detection passes, the screen 6 displays the text "Passed" and the buzzer does not sound. If the detection fails, the screen 6 displays the text "Failed" and the microcontroller 11 sends a trigger signal to the buzzer, causing the buzzer to sound.
[0063] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A rapid testing fixture for power-on testing of plug-in connector-type fuse boxes, characterized in that, It includes a detection housing, multiple sets of detection modules, and multiple sets of connectors. The multiple sets of detection modules are installed at intervals on the detection housing, and the multiple sets of connectors are located sequentially within the multiple sets of detection modules and connected to the detection modules. The shapes of the multiple sets of connectors and the positions of their internal metal terminals are all different. The shapes of the multiple sets of detection modules are respectively matched with the shapes of the multiple sets of connectors. The detection module is connected to a probe, and the metal terminals in the connector can contact the probe. The testing box is equipped with a testing unit for power-on testing of the fuse box, and the probes in the multiple sets of testing modules are all connected to the testing unit.
2. The rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 1, characterized in that, The detection unit includes a microcontroller, and the detection housing is equipped with a power connector and a power switch. The probe is connected to the microcontroller.
3. The rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 2, characterized in that, The detection box is equipped with a display screen, which is electrically connected to the microcontroller. The microcontroller summarizes the detection results and displays them on the display screen.
4. The rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 3, characterized in that, An alarm is installed on the detection box. The alarm is electrically connected to the microcontroller. The microcontroller sends a trigger signal to the alarm when the detection result fails. After receiving the trigger signal, the alarm issues an alarm prompt.
5. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 1, characterized in that, The detection module has a groove, and the connector can be inserted into the groove.
6. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 5, characterized in that, Each detection module is equipped with a limiting unit for limiting the position of the connector. The limiting unit includes a limiting rod and a motor. The motor is connected to the detection module, and the output shaft of the motor is fixedly connected to the limiting rod. The motor can drive the limiting rod to rotate to lock the connector or drive the limiting rod to rotate away from the connector.
7. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 6, characterized in that, The detection housing is equipped with multiple motor control switches, which are electrically connected to motors installed on multiple sets of detection modules.
8. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 6, characterized in that, The motor is connected to a mounting plate at its end, and the motor is connected to the detection module through the mounting plate.
9. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to claim 1, characterized in that, Both the detection module and the detection housing are made of insulating material.
10. A rapid testing fixture for power-on testing of plug-in connection type fuse boxes according to any one of claims 1-9, characterized in that, The testing enclosure includes a main body and a cover plate, with the cover plate connected to the main body; the testing module is connected to the cover plate, and the testing unit is installed inside the main body.
