Device and method for on-off test of assembled micro-rectangular electric connector

Abstract

The invention provides a device and a method for an on-off test of an assembled micro-rectangular electric connector. The device comprises an on-off indicator, the micro-rectangular electric connector and a test instrument. The on-off indicator is at least provided with N indicating lamps which are arranged in sequence; the micro-rectangular electric connector is provided with N terminals, and the N terminals of the micro-rectangular electric connector are sequentially connected with the indicating lamps in a one-to-one correspondence mode. The micro rectangular electric connector can be matched and connected with a micro rectangular electric connection port of a to-be-tested product in a plug-in manner, so that N terminals of the micro rectangular electric connector are correspondingly connected with N to-be-tested pins in the to-be-tested product in a one-to-one manner, and then an on-off test link from the second end of each indicating lamp to the corresponding to-be-tested pin is formed; and the test instrument is used for testing the resistance value of the on-off test link and applying a power supply to the on-off test link. According to the invention, an efficient on-off test scheme can be provided for the assembled micro-rectangular electric connector, and the test time is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of micro rectangular electrical connector testing technology, and more specifically, to an apparatus and method for conducting continuity testing on assembled micro rectangular electrical connectors. Background Technology

[0002] As electronic devices evolve towards higher density, higher performance, and higher reliability, the demand for micro-rectangular electrical connectors in electronic components has increased significantly. These products effectively improve the signal interconnection density of electronic components and significantly reduce package size, thereby driving the miniaturization and weight reduction of electronic component packaging technology. However, due to the compact size, high pin density, and large number of pins, micro-rectangular electrical connectors present problems such as obstruction of view after assembly onto the electronic component housing. Assembled micro-rectangular electrical connectors typically require manual continuity testing using two probes on both sides of the product under test, resulting in low pin continuity testing efficiency and a high risk of false positives and false negatives.

[0003] Chinese utility model patent CN202323259201.7 discloses a micro-rectangular electrical connector testing mechanism. This mechanism includes: a body; a fixture plate mounted on the body, the fixture plate having a plurality of electrode holes arranged at preset distances; a fixture detachably connected to the fixture plate, the fixture having electrodes that mate with the electrode holes and insertion holes for connecting to the ports of the micro-rectangular electrical connector, the fixture having an identification corresponding to the model number; a CMOS camera fixedly connected to the body; and a circuit board mounted inside the body, the fixture plate being electrically connected to the circuit board, the circuit board having a matrix switch to control the motor holes on the fixture plate to connect to the test circuit, and the CMOS camera being electrically connected to the circuit board. In this testing mechanism, the product model number can be obtained through the CMOS camera, and the testing program can be automatically switched.

[0004] Another Chinese utility model patent, CN202223361995.3, discloses a performance testing device for micro-rectangular RF coaxial connectors. The device under test is fixed by a circular clamp, and a spring ensures a tight connection between the device and the test unit, effectively preventing poor contact. Another Chinese invention patent, CN202011628360.8, discloses a testing fixture for micro-rectangular electrical connectors, used to test the dielectric withstand voltage and insulation resistance of the connectors, improving testing efficiency. Yet another Chinese utility model patent, CN202321196008.0, discloses a wire sequence testing device, mainly used to test the wire sequence number of micro-rectangular connectors.

[0005] It is evident that existing technologies primarily focus on testing the performance and wiring sequence of the micro-rectangular connector itself, but lack testing devices and methods for testing the micro-rectangular electrical connector after it is assembled into the cavity. In particular, there is a lack of testing devices and methods for testing continuity faults between pins and between pins and the cavity after the micro-rectangular electrical connector is assembled. Summary of the Invention

[0006] The present invention aims to solve at least one of the aforementioned technical problems existing in the prior art.

[0007] Therefore, the first aspect of the present invention provides an apparatus for conducting continuity testing on a micro rectangular electrical connector after assembly.

[0008] A second aspect of the present invention provides a method for conducting continuity testing on a micro rectangular electrical connector after assembly.

[0009] This invention provides an apparatus for conducting continuity testing on assembled micro-rectangular electrical connectors, comprising: An on / off indicator has at least N sequentially arranged indicator lights, each indicator light having a first terminal and a second terminal; A micro-rectangular electrical connector has N terminals, which are sequentially connected to the first terminals of N indicator lights. The micro-rectangular electrical connector can be matched and plugged into the micro-rectangular electrical connection port of the product under test (DUT), so that the N terminals of the micro-rectangular electrical connector are connected to the N pins under test inside the DUT, thereby forming a continuity test link from the second terminal of each indicator light to the corresponding pin under test. Specifically, the second terminal of the indicator light is used as the first terminal of the continuity test link, and the pin under test corresponding to the indicator light is used as the second terminal of the continuity test link. The testing instrument has a first end and a second end. The first end of the testing instrument is electrically connected to the first end of the continuity test link, and the second end of the testing instrument is in contact with the second end of the continuity test link. The testing instrument is used to test the resistance value of the continuity test link and to apply power to the continuity test link. When the testing instrument applies power to the continuity test link, if there is no break in the continuity test link, the corresponding indicator light will illuminate.

[0010] The apparatus for continuity testing of micro rectangular electrical connectors after assembly, according to the above-described technical solution of the present invention, may further have the following additional technical features: In the above technical solution, the indicator light is a light-emitting diode.

[0011] In the above technical solution, the first end of the indicator light is connected to the corresponding terminal on the micro rectangular electrical connector via a first wire.

[0012] In the above technical solution, the continuity indicator has a common connection terminal, the second terminals of N indicator lights are connected in parallel to the common connection terminal, and the common connection terminal is connected to the first terminal of the test instrument as the first terminal of any continuity test link.

[0013] In the above technical solution, the first end of the testing instrument is directly connected to the second end of the indicator light in a contact manner.

[0014] In the above technical solution, the testing instrument is a multimeter.

[0015] In the above technical solution, the testing instrument includes a test probe. The first end of the testing instrument is electrically connected to the first end of the continuity test link through a second wire, and the second end of the testing instrument is electrically connected to the test probe through a third wire. The test probe is used to make a contact connection with the pin under test.

[0016] In the above technical solution, the on / off indicator includes N+1 sequentially arranged indicator lights, wherein the first end of the N+1th indicator light is connected to the housing of the micro rectangular electrical connector.

[0017] In the above technical solution, the number of indicator lights in the continuity indicator is greater than the number of terminals in the micro rectangular electrical connector; The micro rectangular electrical connector is configured as a detachable and replaceable component.

[0018] This invention provides a method for continuity testing of assembled micro-rectangular electrical connectors, employing the apparatus for continuity testing of assembled micro-rectangular electrical connectors as described in any of the above technical solutions to test the product under test; the method includes: Connect the micro rectangular electrical connector to the micro rectangular electrical connection port of the product under test to form at least N continuity test links, where N is the number of test pins inside the product under test. Each continuity test link is tested sequentially. When testing a single continuity test link, the first end of the test instrument is connected to the first end of the continuity test link, and the second end of the test instrument is connected to the second end of the continuity test link in a contact manner. When the indicator light in the continuity test link is lit and the indicator lights in the other continuity test links are off, the current continuity test link is determined to be normal; otherwise, the current continuity test link is determined to be faulty.

[0019] In summary, due to the adoption of the above-mentioned technical features, the beneficial effects of the present invention are: This invention provides an apparatus and method for continuity testing of assembled micro-rectangular electrical connectors. It can provide an efficient continuity testing scheme for various types of assembled micro-rectangular electrical connectors, effectively shorten the testing time, and make up for the shortcomings of existing testing methods, such as easy error and missed testing and long testing cycle.

[0020] Specifically, the testing apparatus and method involved in this invention can achieve economical and efficient testing of assembled micro-rectangular electrical connectors. Compared with the traditional method of manually testing the continuity of the pins on both sides of the product under test using two probes, this invention can shorten the testing time, reduce errors and omissions in the testing process, and reduce the risk of damage to the product under test during the testing process. The testing apparatus and method involved in this invention are suitable for different models of micro-rectangular electrical connectors and can improve testing efficiency.

[0021] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a device for testing the continuity of a micro rectangular electrical connector after assembly, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the packaging structure of the product under test in one embodiment of the present invention; Figure 3 This is a flowchart of a method for conducting continuity testing of a micro rectangular electrical connector after assembly, according to an embodiment of the present invention. in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1. Continuity indicator; 2. Micro rectangular electrical connector; 3. Testing instrument; 4. Product under test; 11. Indicator light; 12. First wire; 301. Second wire; 302. Third wire; 303. Test probe; 401, Pin under test; 402, Micro rectangular electrical connection port. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0025] The following reference Figures 1 to 3This describes an apparatus for testing the continuity of a micro rectangular electrical connector after assembly, provided according to some embodiments of the present invention.

[0026] Some embodiments of this application provide an apparatus for conducting continuity testing on a micro rectangular electrical connector after assembly.

[0027] like Figure 1 As shown, the first embodiment of the present invention proposes a device for testing the continuity of a micro rectangular electrical connector after assembly, including a continuity indicator 1, a micro rectangular electrical connector 2, and a testing instrument 3.

[0028] The on / off indicator 1 has at least N sequentially arranged indicator lights 11, each indicator light 11 having a first end and a second end.

[0029] The micro-rectangular electrical connector 2 has N terminals, which are sequentially connected to the first terminals of N indicator lights 11. The micro-rectangular electrical connector 2 can be matched and plugged into the micro-rectangular electrical connection port 402 of the product under test 4, so that the N terminals of the micro-rectangular electrical connector 2 are connected to the N test pins 401 inside the product under test 4, thereby forming a continuity test link from the second terminal of each indicator light 11 to the corresponding test pin 401. The second terminal of the indicator light 11 is used as the first terminal of the continuity test link, and the test pin 401 corresponding to the indicator light 11 is used as the second terminal of the continuity test link.

[0030] The test instrument 3 has a first end and a second end. The first end of the test instrument 3 is electrically connected to the first end of the continuity test link, and the second end of the test instrument 3 is contact-connected to the second end of the continuity test link. The test instrument 3 is used to test the resistance value of the continuity test link and to apply power to the continuity test link.

[0031] When the test instrument 3 applies power to the continuity test link, if there is no break in the continuity test link, the corresponding indicator light 11 will light up.

[0032] It is understood that the micro-rectangular electrical connection port 402 on the product under test 4 is the external connection port formed after the micro-rectangular electrical connector referred to in this disclosure is assembled onto the electronic component housing, such as... Figure 2 As shown, the port has several terminals to connect to the pin 401 under test inside the product under test 4. The test referred to in this disclosure is to test whether the port is successfully connected to the pin 401 under test after being assembled into the product under test 4, and whether there is a breakpoint.

[0033] It should be noted that the specific arrangement of the indicator lights 11 in the continuity indicator 1 should establish a direct correspondence with the micro-rectangular electrical connection ports 402 on the product under test 4. For example, if the conventional micro-rectangular electrical connection ports 402 are arranged in a matrix, then the indicator lights 11 should also be arranged in a matrix. Of course, this arrangement does not have to be a perfect match; it is sufficient for the operator to easily establish the correspondence between the two. Similarly, the indicator lights 11 can be numbered and labeled in sequence to facilitate quick location and judgment by the operator.

[0034] The continuity indicator 1 is used to display in real time the continuity between the internal pins of the product under test 4 and the corresponding terminals of the micro rectangular electrical connection port 402.

[0035] In addition, the mating and plugging connection method between the micro rectangular electrical connector 2 and the micro rectangular electrical connection port 402 on the testing device can be adjusted according to the actual situation. For example, when the connection end in the micro rectangular electrical connection port 402 is in the form of a pin, the terminal of the micro rectangular electrical connector 2 on the testing device should be in the form of a socket; conversely, when the connection end in the micro rectangular electrical connection port 402 is in the form of a socket, the terminal of the micro rectangular electrical connector 2 on the testing device should be in the form of a pin.

[0036] In some embodiments, the indicator light 11 is a light-emitting diode (LED). The continuity indicator 1 is constructed by utilizing the small size, low power consumption, low cost, and good stability of LEDs, thereby improving the ease of implementation and cost-effectiveness of the testing device.

[0037] In some embodiments, the first end of the indicator light 11 is connected to a corresponding terminal on the micro-rectangular electrical connector 2 via a first wire 12. Leading out the wire improves assembly stability. Of course, other electrical connection methods can also be used between the indicator light 11 and the micro-rectangular electrical connector 2, such as soldering or contact connection.

[0038] In some embodiments, to simplify wiring, a common connection terminal is configured on the continuity indicator 1, and the second ends of N indicator lights 11 are connected in parallel to the common connection terminal. The common connection terminal is connected to the first end of the test instrument 3 as the first end of any continuity test link.

[0039] In other embodiments, in order to ensure complete separation of each continuity test link, the first end of the test instrument 3 can be directly connected to the second end of the indicator light 11 during testing.

[0040] In some embodiments, the testing instrument 3 is a multimeter. It should be noted that the testing instrument 3 may also be other instruments capable of performing power-on and resistance tests.

[0041] In some embodiments, the test instrument 3 includes a test probe 303. The first end of the test instrument 3 is electrically connected to the first end of the continuity test link via a second wire 301, and the second end of the test instrument 3 is electrically connected to the test probe 303 via a third wire 302. The test probe 303 is used to make a contact connection with the pin 401 under test.

[0042] In some embodiments, the continuity indicator 1 includes N+1 sequentially arranged indicator lights 11, wherein the first end of the N+1th indicator light 11 is connected to the housing of the micro-rectangular electrical connector 2. That is, in addition to several corresponding continuity test links for the micro-rectangular electrical connection port 402, a test link is also constructed to test whether the grounding of the micro-rectangular electrical connector 2 housing is reliable. Specifically, the N+1th indicator light 11 can be designated as GND for differentiation.

[0043] In some embodiments, to improve the adaptability of the testing device, the number of indicator lights 11 in the continuity indicator 1 is greater than the number of terminals in the micro-rectangular electrical connector 2; and the micro-rectangular electrical connector 2 is configured as a detachable and replaceable component. That is, for different micro-rectangular electrical connection ports 402 of different products under test 4 (mainly reflected in the different number of connection ends of the micro-rectangular electrical connection port 402), the corresponding micro-rectangular electrical connector 2 can be selected and assembled in the testing device as needed, and since the indicator lights 11 have a margin, there is no need to replace the continuity indicator 1.

[0044] Other embodiments of the present invention provide a method for continuity testing of assembled micro-rectangular electrical connectors, using the apparatus for continuity testing of assembled micro-rectangular electrical connectors as described in any of the above embodiments to test the product 4 under test; such as Figure 3 As shown, the method includes steps 001-004.

[0045] 001. Connect the product under test (DUT) 4 by matching and plugging the micro rectangular electrical connector 2 with the micro rectangular electrical connection port 402 of the DUT 4 to form at least N continuity test links, where N is the number of pins 401 under test inside the DUT 4. It should be noted that before performing step 001, the corresponding test device should be selected or the corresponding micro rectangular electrical connector 2 should be replaced according to the model of the DUT 4.

[0046] 002. Turn on the multimeter.

[0047] 003. Test each continuity test link sequentially. When testing a single continuity test link, connect the first end of the testing instrument 3 to the first end of the continuity test link, and connect the second end of the testing instrument 3 to the second end of the continuity test link in contact. When the indicator light 11 in the continuity test link is lit, and the indicator lights 11 in the other continuity test links are off, the current continuity test link is considered to be normal; otherwise, the current continuity test link is considered to be faulty. For example, when using the test probe 303 to test pin X, if the indicator light 11 corresponding to pin X on the continuity indicator 1 is lit, and the indicator lights 11 of the other pins are off, it indicates that the continuity between pin X inside the product under test and the corresponding pin X connection terminal of the micro rectangular electrical connection port 402 is normal, and pin X passes the test. If when testing pin Y, the indicator light 11 corresponding to pin Y on the continuity indicator 1 is off, or any other pin indicator light 11 is lit, it indicates that the pin is faulty and the product needs to be reworked and retested.

[0048] 004. Remove the product to be tested.

[0049] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention shall be included within the scope of protection of this invention.

Claims

1. A device for continuity testing of assembled micro-rectangular electrical connectors, characterized in that, include: An on / off indicator has at least N sequentially arranged indicator lights, each indicator light having a first terminal and a second terminal; A micro-rectangular electrical connector has N terminals, which are sequentially connected to the first terminals of N indicator lights. The micro-rectangular electrical connector can be matched and plugged into the micro-rectangular electrical connection port of the product under test (DUT), so that the N terminals of the micro-rectangular electrical connector are connected to the N pins under test inside the DUT, thereby forming a continuity test link from the second terminal of each indicator light to the corresponding pin under test. Specifically, the second terminal of the indicator light is used as the first terminal of the continuity test link, and the pin under test corresponding to the indicator light is used as the second terminal of the continuity test link. The testing instrument has a first end and a second end. The first end of the testing instrument is electrically connected to the first end of the continuity test link, and the second end of the testing instrument is in contact with the second end of the continuity test link. The testing instrument is used to test the resistance value of the continuity test link and to apply power to the continuity test link. When the testing instrument applies power to the continuity test link, if there is no break in the continuity test link, the corresponding indicator light will illuminate.

2. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The indicator light uses a light-emitting diode.

3. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The first end of the indicator light is connected to the corresponding terminal on the micro rectangular electrical connector via a first wire.

4. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The continuity indicator has a common connection terminal, and the second terminals of N indicator lights are connected in parallel to the common connection terminal. The common connection terminal is connected to the first terminal of the test instrument as the first terminal of any continuity test link.

5. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The first end of the testing instrument is directly connected to the second end of the indicator light in a contact manner.

6. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The testing instrument used is a multimeter.

7. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The testing instrument includes a test probe. The first end of the testing instrument is electrically connected to the first end of the continuity test link via a second wire. The second end of the testing instrument is electrically connected to the test probe via a third wire. The test probe is used to make a contact connection with the pin under test.

8. The apparatus for continuity testing of micro rectangular electrical connectors after assembly, as described in claim 1, is characterized in that... The on / off indicator includes N+1 sequentially arranged indicator lights, wherein the first end of the N+1th indicator light is connected to the housing of the micro rectangular electrical connector.

9. The apparatus for continuity testing of assembled micro-rectangular electrical connectors according to claim 1, characterized in that, The number of indicator lights in the continuity indicator is greater than the number of terminals in the micro rectangular electrical connector; The micro rectangular electrical connector is configured as a detachable and replaceable component.

10. A method for continuity testing of assembled micro rectangular electrical connectors, characterized in that, The device for continuity testing of assembled micro rectangular electrical connectors as described in any one of claims 1 to 9 is used to test the product under test; the method includes: Connect the micro rectangular electrical connector to the micro rectangular electrical connection port of the product under test to form at least N continuity test links, where N is the number of test pins inside the product under test. Each continuity test link is tested sequentially. When testing a single continuity test link, the first end of the test instrument is connected to the first end of the continuity test link, and the second end of the test instrument is connected to the second end of the continuity test link in a contact manner. When the indicator light in the continuity test link is lit and the indicator lights in the other continuity test links are off, the current continuity test link is determined to be normal; otherwise, the current continuity test link is determined to be faulty.

Images