Connector internal short detection device

Abstract

The application relates to the technical field of connector detection, and discloses a connector internal short circuit detection device, which comprises a base provided with a positioning structure and used for bearing a connector, at least two conductive parts arranged on the base and used for contacting at least two pins of the connector, a detection assembly comprising a detection circuit and a prompt module, and the detection circuit is electrically connected with the conductive parts and the prompt module; wherein the positioning structure is used for positioning the connector so that the pins of the connector are aligned with the conductive parts; the detection circuit is used for judging the short circuit state between the pins of the connector; and the prompt module is used for sending a prompt signal according to the short circuit state. The device solves the problems of complicated operation and poor contact in the traditional detection mode through mechanical positioning and automatic detection, and improves the detection efficiency and reliability.

Description

Technical Field

[0001] This application relates to the field of connector testing technology, specifically to a connector internal short circuit detection device. Background Technology

[0002] In electronic device manufacturing, the pins of charger connectors are typically encapsulated within plastic using an injection molding process. Due to material flow or mechanical compression during injection molding, adjacent pins may short-circuit within the plastic, causing product malfunction. Traditional testing methods primarily rely on multimeters for continuity testing: the multimeter is set to the ohm range, and the probes are used to touch adjacent pins to determine if there is a short circuit.

[0003] However, the above detection method has the following problems: when using a multimeter, the probes need to be manually operated to contact the pins, but the contact stability between the probes and the pins is poor. It is possible that a short circuit has occurred inside the pin, but it is not detected because the probes are in contact with the pins. Utility Model Content

[0004] This application primarily addresses the technical problem that when testing connectors with a multimeter, internal short circuits are easily detected but not detected.

[0005] According to a first aspect, one embodiment provides a connector internal short circuit detection device, comprising:

[0006] The base, including positioning structures, is used to support the connector;

[0007] At least two conductive elements are disposed on the base and are used to contact at least two pins of the connector;

[0008] The detection component includes a detection circuit and a prompting module, wherein the detection circuit is electrically connected to the conductive element and the prompting module;

[0009] The positioning structure is used to position the connector so that the pins of the connector are aligned with the conductive component; the detection circuit is used to determine the short circuit status between the pins of the connector; and the prompting module is used to issue a prompting signal based on the short circuit status.

[0010] In some embodiments, the conductive element includes a contact and a contact base, the contact base being fixedly connected to the base, the contact being used to contact the pins of the connector and being retractable relative to the contact base.

[0011] In some embodiments, the connector internal short circuit detection device includes a travel detection switch, which is disposed on the base and electrically connected to the detection circuit, for activating the detection circuit when the connector is installed in a set position.

[0012] In some embodiments, the travel detection switch includes an actuation portion lower than the contact, the actuation portion being configured to activate the detection circuit upon contact with the connector.

[0013] In some embodiments, the connector internal short circuit detection device includes a first bus and a second bus, the conductive elements are divided into a first group and a second group, and the pins on the connector are divided into a first pin group and a second pin group adjacent to the first pin group;

[0014] The first busbar is electrically connected between the detection circuit and the first group of conductive elements, the first group of conductive elements being used to contact the first pin group on the connector;

[0015] The second busbar is electrically connected between the detection circuit and the second set of conductive elements, the second set of conductive elements being used to contact the second pin group on the connector;

[0016] The detection circuit is used to determine the short circuit status between the first bus and the second bus.

[0017] In some embodiments, the positioning structure is a limiting groove disposed on the base, the limiting groove being adapted to the outer peripheral shape of the connector.

[0018] In some embodiments, the conductive element is located within the limiting groove.

[0019] In some embodiments, the alert module includes indicator lights and / or alarms.

[0020] In some embodiments, the prompting module includes an indicator light and an alarm, with the indicator light disposed on the base.

[0021] In some embodiments, the connector internal short circuit detection device includes a device body and a battery. The device body is fixedly connected to the base and has an inner cavity, and the battery is located in the inner cavity.

[0022] According to the connector internal short circuit detection device of the above embodiment, the positioning structure on the base enables rapid and accurate positioning of the connector, ensuring that the connector pins and conductive parts are automatically aligned, which is beneficial to improving detection efficiency and ease of operation; the cooperation between the conductive parts and the detection circuit can directly determine the short circuit status of the connector internal pins, avoiding the misjudgment problem caused by poor contact in traditional multimeter testing; the prompting module provides real-time feedback of the detection results, enabling operators to quickly identify defective products, and solving the problems of low detection efficiency and easy misdetection in the prior art. Attached Figure Description

[0023] Figure 1 This is a partial structural diagram of the connector;

[0024] Figure 2 This is a perspective view of one embodiment of the connector internal short circuit detection device of this application;

[0025] Figure 3 for Figure 2 Top view of the internal short-circuit detection device of the connector;

[0026] Figure 4 for Figure 2 Left view of the internal short-circuit detection device of the connector;

[0027] Figure 5 A schematic diagram of the connector's pin grouping;

[0028] Figure 6 for Figure 2 A schematic diagram of the detection circuit of the internal short-circuit detection device in the connector.

[0029] Figure label:

[0030] 100, Base; 110, Limiting groove; 120, Fastener; 200, Conductive component; 210, Contact; 220, Contact seat; 300, Detection assembly; 310, Detection circuit; 320, Indicator light; 400, Limit detection switch; 410, Actuator; 500, Main body of device; 510, USB Type-C interface; 600, Connector; 610, Pin. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0032] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0033] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0034] like Figure 1 As shown, connector 600 generally includes multiple pins 610, which are separated by insulating material. However, during the injection molding process, due to material flow or mechanical extrusion, adjacent pins 610 may short-circuit, causing product malfunction.

[0035] To detect whether the pins 610 of connector 600 are short-circuited, a multimeter is generally used in the prior art. However, the inventors have found the following problems with using a multimeter: When using a multimeter, the probes need to be manually operated to contact the pins 610. However, the contact stability between the probes and the pins 610 is poor, and it is possible that a short circuit has occurred internally in the pins 610, but it is not detected because the probes are in contact with the pins 610; to ensure conductivity, the probes need to be pressed firmly during operation, which may cause plastic deformation or separation of the pins 610 from the substrate, resulting in product scrapping due to the testing process itself; the metal tips of the probes can easily scratch the surface plating or plastic structure of connector 600, further increasing wear and tear.

[0036] Furthermore, the aforementioned testing methods require coordinated operation of both hands, resulting in low efficiency and making it difficult to meet the full inspection requirements of mass production. To address these issues, this application proposes a connector internal short circuit detection device.

[0037] like Figures 2-4 As shown, in one embodiment, a connector internal short circuit detection device includes: a base 100, at least two conductive elements 200, and a detection component 300.

[0038] The base 100 includes a positioning structure for supporting the connector 600. The positioning structure may be a limiting groove 110 disposed on the base 100, the shape of which is adapted to the outer periphery of the connector 600. The positioning structure is used to position the connector 600 so that the pins 610 of the connector 600 are aligned with the conductive element 200. The conductive element 200 is disposed on the base 100, may be located within the limiting groove 110, and is used to contact the pins 610 of the connector 600. In other embodiments, the positioning structure may also be a positioning protrusion disposed on the base 100, which positions the connector 600 by contacting the outer periphery of the connector 600.

[0039] The number of conductive elements 200 is at least two, and the specific number can be the same as the number of pins 610 on the connector 600, so as to realize the detection of all pins 610 on the connector 600. In this embodiment, there are six pins 610 on the connector 600, and correspondingly, there are also six conductive elements 200; when the connector 600 is assembled in the limiting groove 110, the six conductive elements 200 contact the six pins 610 one by one and realize electrical connection. The material of the conductive elements 200 can be copper, aluminum, etc.

[0040] The detection component 300 includes a detection circuit 310 and a prompting module. The detection circuit 310 is electrically connected to the conductive component 200 and the prompting module. The detection circuit 310 can be mounted on a PCB (Printed Circuit Board). The detection circuit 310 is used to determine the short circuit status between the pins 610 of the connector 600, and the prompting module is used to issue a prompt signal based on the short circuit status.

[0041] Specifically, the prompting module may include indicator lights 320 of different colors. When the detection circuit 310 determines that pin 610 is short-circuited, the red indicator light 320 lights up; when pin 610 is not short-circuited, the green indicator light 320 lights up. Alternatively, the prompting module may also include an alarm that sounds when pin 610 is short-circuited. The indicator lights 320 may be mounted on the base 100 for easy observation by inspection personnel.

[0042] According to the connector internal short circuit detection device of the above embodiment, the positioning structure on the base enables rapid and accurate positioning of the connector, ensuring that the connector pins and conductive parts are automatically aligned, which is beneficial to improving detection efficiency and ease of operation; the cooperation between the conductive parts and the detection circuit can directly determine the short circuit status of the connector internal pins, avoiding the misjudgment problem caused by poor contact in traditional multimeter testing; the prompting module provides real-time feedback of the detection results, enabling operators to quickly identify defective products, and solving the problems of low detection efficiency and easy misdetection in the prior art.

[0043] In some embodiments, such as Figures 2-4 As shown, the conductive element 200 includes a contact 210 and a contact base 220. The contact base 220 is fixedly connected to the base 100. The contact 210 is used to contact the pin 610 of the connector 600 and is retractable relative to the contact base 220. Specifically, an elastic element, such as a spring, can be provided between the contact 210 and the contact base 220. Since there are multiple conductive elements 200, the retractable nature of the contact 210 ensures that each pin 610 on the connector 600 can make full contact with it, preventing a pin 610 from being suspended and not in contact with the contact 210.

[0044] The contact 210 can be arc-shaped. Combined with its telescopic feature, it is less likely to damage the pins 610 or the gold plating or plastic surface of the connector 600 during contact. During use, the contact 210 contacts the bottom of the connector 600. The force applied when pressing the connector 600 is directed towards the horizontal plane of the connector 600. The vertically weaker surface of the connector 600 is not subjected to force, thus preventing structural damage and scratching of the plastic surface or gold plating.

[0045] In some embodiments, such as Figures 2-4 As shown, the internal short-circuit detection device of the connector includes a travel detection switch 400, which can be a micro switch and is disposed within the limiting groove 110. The travel detection switch 400 is disposed on the base 100 and electrically connected to the detection circuit 310, and is used to activate the detection circuit 310 when the connector 600 is installed in a set position. The travel detection switch 400 includes an actuation part 410, which is lower than the contact 210, and is used to activate the detection circuit 310 after contacting the connector 600.

[0046] When connector 600 is inserted into limit groove 110 from above, because the actuation part 410 of travel detection switch 400 is lower than the top surface of contact 210, the pins 610 of connector 600 will first make full contact with contact 210, causing contact 210 to retract. Then, connector 600 contacts actuation part 410, causing detection circuit 310 to conduct and begin detecting whether pins 610 are short-circuited. This arrangement ensures that when detection circuit 310 is on, each conductive element 200 has made full contact with each pin 610, avoiding false detections due to insufficient contact.

[0047] In other embodiments, the travel detection switch 400 may also be other contact-type switches, such as Hall effect sensors. Alternatively, the travel detection switch 400 may also be non-contact-type switches, such as photoelectric sensors.

[0048] In some embodiments, such as Figures 2-4As shown, the connector internal short-circuit detection device includes a device body 500 and a battery. The device body 500 is fixedly connected to the base 100 and has an inner cavity, in which the battery is located. Specifically, the device body 500 and the base 100 can be fixed by fasteners 120 such as fastening bolts or fastening nuts. An inner cavity is provided between the device body 500 and the base 100, and the battery and PCB board (not shown in the figure) can both be fixed in the inner cavity.

[0049] The side of the internal short-circuit detection device of the connector may also be provided with a USB Type-C interface 510 (USB Type-C Connector), which is electrically connected to the internal battery. The USB Type-C interface 510 is used to charge the battery, and the battery is used to power the detection circuit 310 and the indication module.

[0050] In some embodiments, such as Figure 3 and Figure 5 As shown, the connector internal short-circuit detection device includes a first bus and a second bus (not shown in the figure). The conductive elements 200 are divided into a first group and a second group. The pins 610 on the connector 600 are divided into a first pin group and a second pin group adjacent to the first pin group. The first bus is electrically connected between the detection circuit 310 and the first group of conductive elements, and the first group of conductive elements is used to contact the first pin group on the connector 600. The second bus is electrically connected between the detection circuit 310 and the second group of conductive elements, and the second group of conductive elements is used to contact the second pin group on the connector 600. The detection circuit 310 is used to determine the short-circuit state between the first bus and the second bus.

[0051] In this embodiment, as Figure 1 and Figure 5 As shown, connector 600 includes six pins 610, numbered 1, 2, 3, 4, 5, and 6 from left to right. Pins 1, 2, and 3 are located on the left side of connector 600, and pins 4, 5, and 6 are located on the right side of connector 600. The left and right sides of connector 600 are separated by a hole. Pins 2 and 5 are located in the middle and constitute the first pin group, while the remaining pins constitute the second pin group. The conductive elements 200 corresponding to the first and second pin groups are respectively the first group of conductive elements and the second group of conductive elements.

[0052] During the injection molding process of connector 600, the following short circuits may occur between adjacent pins 610 due to extrusion: 1-2 short circuit, 2-3 short circuit, 1-2-3 short circuit; 4-5 short circuit, 5-6 short circuit, 4-5-6 short circuit. Since pins 2 and 5 are located in the middle of the left and right sides respectively, they are connected by the first busbar as point A; pins 1, 3, 4, and 6 are connected by the second busbar as point B. Points A and B can be considered as a switch K2. When connector 600 is placed in the limiting groove 110, it is equivalent to connecting switch K2 to the detection circuit 310. When any of the above pin short circuits occur, switch K2 closes. Therefore, detection circuit 310 only needs to detect the closed state of switch K2 to determine the pin short circuit status.

[0053] In some embodiments, the detection circuit 310 is as follows: Figure 6 As shown, K1 is a micro switch; K2 is a switch composed of the first busbar and the second busbar; D is an indicator light 320, where D1 is a diode that emits green light when lit; D2 is a diode that emits red light when lit; BAT is a battery; SPK is an alarm; R1, R2, and R3 are all resistors; Q1 is a MOS switch.

[0054] The working principle of the detection circuit 310 is as follows: Press down on connector 600 until the microswitch is triggered, K1 closes, and the detection circuit 310 is turned on. If there is no short circuit between adjacent pins of the connector, K2 is in the open state. Because the gate (G) and source (S) potentials of Q1 are the same, the source (S) and drain (D) are not connected. At this time, D1 works, and the green light illuminates, indicating that the connector is qualified. If there is a short circuit between adjacent pins of the connector, K2 closes. Because the G potential of Q1 is higher than the S potential, the S and D potentials are connected. At this time, D1 is short-circuited and does not work, while D2 and SPK work, the red light illuminates, and an alarm sound is heard, indicating that the connector is unqualified.

[0055] The following describes the usage process of the connector internal short circuit detection device of this utility model.

[0056] Place the connector 600 into the limiting groove 110 of the detection device; press the connector 600 down so that the six pins 610 on the connector 600 contact the six conductive parts 200 in the limiting groove 110 respectively; since the contact 210 of the conductive part 200 is higher than the actuation part 410 of the micro switch, during the downward pressing process, the pins 610 will first contact the contact 210. After continuing to press down a certain distance, the main body of the connector 600 will trigger the micro switch.

[0057] At this time, if there is no short circuit between adjacent pins 610 of connector 600, D1 will light up, connector 600 will pass the test and be classified as a good product; if there is a short circuit between pins 610 of connector 600, D2 will light up, and the alarm will sound at the same time, connector 600 will fail the test and be classified as a defective product.

[0058] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A connector internal short circuit detection device, characterized in that, include: The base, including positioning structures, is used to support the connector; At least two conductive elements are disposed on the base and are used to contact at least two pins of the connector; The detection component includes a detection circuit and a prompting module, wherein the detection circuit is electrically connected to the conductive element and the prompting module; The positioning structure is used to position the connector so that the pins of the connector are aligned with the conductive component; the detection circuit is used to determine the short circuit status between the pins of the connector; and the prompting module is used to issue a prompting signal based on the short circuit status.

2. The connector internal short circuit detection device according to claim 1, characterized in that, The conductive element includes a contact and a contact base, the contact base being fixedly connected to the base, the contact being used to contact the pins of the connector, and being retractable relative to the contact base.

3. The connector internal short circuit detection device according to claim 2, characterized in that, The device includes a travel detection switch, which is disposed on the base and electrically connected to the detection circuit, for activating the detection circuit when the connector is installed in a set position.

4. The connector internal short circuit detection device according to claim 3, characterized in that, The travel detection switch includes an actuation part that is lower than the contact, and the actuation part is used to activate the detection circuit after contacting the connector.

5. The connector internal short circuit detection device according to claim 3, characterized in that, It includes a first bus and a second bus, the conductive components are divided into a first group and a second group, and the pins on the connector are divided into a first pin group and a second pin group adjacent to the first pin group; The first busbar is electrically connected between the detection circuit and the first group of conductive elements, the first group of conductive elements being used to contact the first pin group on the connector; The second busbar is electrically connected between the detection circuit and the second set of conductive elements, the second set of conductive elements being used to contact the second pin group on the connector; The detection circuit is used to determine the short circuit status between the first bus and the second bus.

6. The connector internal short circuit detection device according to any one of claims 1-5, characterized in that, The positioning structure is a limiting groove provided on the base, and the limiting groove is adapted to the outer peripheral shape of the connector.

7. The connector internal short circuit detection device according to claim 6, characterized in that, The conductive element is located within the limiting groove.

8. The connector internal short circuit detection device according to any one of claims 1-5, characterized in that, The notification module includes indicator lights and / or alarms.

9. The connector internal short circuit detection device according to claim 8, characterized in that, The notification module includes an indicator light and an alarm, with the indicator light mounted on the base.

10. The connector internal short circuit detection device according to any one of claims 1-5, characterized in that, It includes a device body and a battery. The device body is fixedly connected to the base and has an inner cavity, and the battery is located in the inner cavity.

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