An audio patch cord testing device
By using audio adapter cable testing equipment with dedicated power supply and power receiving interfaces, the problems of high cost and low efficiency of traditional testing methods have been solved, achieving low-cost, automated and efficient audio adapter cable testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANGANG OPTOELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional audio adapter cable testing methods rely on mobile phones and speakers, resulting in high testing costs and the inability to achieve continuous testing, which affects production efficiency.
The audio adapter test equipment uses a dedicated power supply interface and a power receiving interface. It automatically switches between testing each interface through a test switch and directly detects electrical signals in conjunction with the electrical testing circuit to achieve continuous testing.
It significantly reduces testing costs, minimizes equipment wear and tear, improves production efficiency, and enhances the reliability and accuracy of testing through automated inspection.
Smart Images
Figure CN224317765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio cable testing technology, and in particular to an audio adapter cable testing device. Background Technology
[0002] A multi-port audio adapter cable typically includes an input plug for plugging and unplugging into an audio input terminal (such as a mobile phone), multiple audio output plugs for plugging and unplugging into various audio output terminals (such as speakers), and a wiring harness connecting the input plug and each of the audio output plugs. Multi-port audio adapter cables require electrical testing before leaving the factory; the specific steps are as follows:
[0003] ① The worker first inserts the input plug into the data interface at the bottom of the mobile phone, and then inserts the first audio output plug into the first speaker with the corresponding audio interface. If the first speaker plays the sound from the mobile phone normally, it means that the first audio output plug is not the problem.
[0004] ② Next, plug the second audio output plug into the second speaker with the corresponding audio interface. If the second speaker plays the sound from the mobile phone normally, it means that the second audio output plug is not the problem.
[0005] This process is repeated until the last audio output plug is tested.
[0006] The problem with the above test is:
[0007] ① The test requires the use of a mobile phone and multiple speakers. Repeated plugging and unplugging can damage the mobile phone and speakers, resulting in high testing costs.
[0008] ② After testing the previous audio output plug, you cannot directly test the next audio output plug. Instead, you must first unplug the previous audio output plug and then plug in the next one; only then can you test the next audio output plug. The plugging / unplugging and testing processes are performed alternately, making continuous plugging / unplugging and continuous testing impossible, thus affecting production efficiency.
[0009] Therefore, it is necessary to develop an audio adapter cable testing device to solve the problems of high testing costs and low production efficiency caused by the inability to achieve continuous testing in existing testing methods.
[0010] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0011] One objective of this invention is to provide an audio adapter cable testing device that can effectively solve the problems of high testing costs and low production efficiency caused by the inability to perform continuous testing in existing testing methods.
[0012] To achieve the above objectives, this utility model provides an audio adapter cable testing device for testing multi-channel audio adapter cables.
[0013] The multi-channel audio adapter cable includes an input plug for plugging and unplugging with an audio input terminal, multiple audio output plugs for plugging and unplugging with various audio output terminals, and a wire harness connecting the input plug and each of the audio output plugs.
[0014] The audio adapter cable testing equipment includes:
[0015] A power supply assembly, comprising a power supply mounting base and a power supply interface mounted in the power supply mounting base and used for plugging and unplugging connection with the input plug;
[0016] A power receiving component, the power receiving component including a power receiving mounting base and a plurality of power receiving interfaces installed in the power receiving mounting base and corresponding one-to-one with each of the audio output plugs;
[0017] The test circuit board includes a power supply circuit electrically connected to the power supply component and outputting voltage to the power supply component, and a power measurement circuit electrically connected to each of the power receiving interfaces and detecting the conduction state of each of the power receiving interfaces.
[0018] A plurality of test switches are provided corresponding to each of the power receiving interfaces, and the test switch is connected in series between the power measuring circuit and each of the power receiving interfaces.
[0019] A reporting device, electrically connected to the test circuit board, is used to report the conduction status of each of the powered interfaces.
[0020] Optional, also includes:
[0021] The power supply component, the power receiving component, each of the test switches, and the reporting device are all mounted on the top surface of the chassis, and the test circuit board is located inside the chassis.
[0022] Optionally, the connection between the power supply mounting base and the power receiving interface, as well as the connection between the power receiving mounting base and each of the power receiving interfaces, are detachable.
[0023] Optionally, both the power supply mounting base and the power receiving mounting base include:
[0024] The fixed base has an interface positioning groove on its top for positioning the corresponding power supply interface or power receiving interface.
[0025] A mounting cover is located above the mounting base and is used to cooperate with the mounting base to press the corresponding power supply interface or power receiving interface.
[0026] Optionally, the fixed seat cover and the fixed seat cover are provided with bolt holes for locking bolts to pass through. After passing through the bolt holes of the fixed seat cover and the fixed seat cover, the locking bolts are threaded to the chassis.
[0027] Optionally, the chassis includes a base box and a cover plate located on top of the base box;
[0028] One side of the cover plate is hinged to the bottom box, and the other side is detachably connected to the bottom box via a snap-fit assembly.
[0029] Optionally, the power supply interface and each of the power receiving interfaces are electrically connected to the test circuit board via a wire assembly.
[0030] Optionally, the power receiving interface is provided with a screw-type connector or a plug-in connector that is electrically connected to the wire assembly.
[0031] Optionally, the reporting device includes at least one of a display screen, an indicator light, or an audible alarm.
[0032] The beneficial effects of this utility model are as follows: It provides an audio adapter cable testing device, which significantly reduces testing costs and improves production efficiency through a dedicated testing interface and continuous testing mechanism.
[0033] Traditional testing methods rely on mobile phones and speakers as signal sources and output devices. However, mobile phones and speakers are high-value consumer electronics products, and their interfaces are not designed for frequent plugging and unplugging. Long-term testing can lead to interface wear and even device damage, resulting in high repair or replacement costs. In contrast, this testing equipment uses dedicated power supply and receiving interfaces. These interfaces use industrial-grade connectors, which are inexpensive and durable. Even if wear occurs after long-term use, only individual interface modules need to be replaced, rather than scrapping the entire device, thus significantly reducing testing costs.
[0034] Furthermore, traditional testing methods require workers to manually plug and unplug audio output plugs one by one, with each interface requiring a plug-and-unplug operation. This frequent interruption of the testing process leads to low efficiency. This equipment, however, allows all plugs to be tested to be inserted at once and automatically switches between interfaces via a test switch, eliminating the need for manual intervention and enabling continuous testing, significantly improving production efficiency. Simultaneously, the electrical circuit directly detects electrical signals, which is more accurate and reliable than subjective judgment relying on sound playback from speakers. This allows for rapid identification of circuit faults, further enhancing testing reliability.
[0035] In summary, this device replaces high-value consumer electronics products with a low-cost dedicated interface, reducing equipment wear and tear; and reduces manual operation and improves testing efficiency through an automated testing mechanism, thus effectively solving the problems of high cost and low efficiency of traditional testing methods. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 A front view of the audio adapter cable test equipment provided in the embodiment;
[0038] Figure 2 This is a schematic diagram of the back of the audio adapter cable test equipment provided in the embodiment.
[0039] In the picture:
[0040] 1. Power supply assembly; 101. Power supply mounting bracket; 1011. Mounting bracket base; 1012. Mounting bracket cover; 1013. Bolt holes; 102. Power supply interface;
[0041] 2. Power receiving component; 201. Power receiving mounting bracket; 202. Power receiving interface; 2021. Screw connector;
[0042] 3. Test the switch;
[0043] 4. Reporting device;
[0044] 5. Chassis; 501. Back box; 502. Cover plate; 503. Clip assembly. Detailed Implementation
[0045] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0046] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.
[0047] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0048] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0049] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0050] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0051] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0052] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0053] This invention provides an audio adapter cable testing device for testing multi-channel audio adapter cables.
[0054] The multi-channel audio adapter cable includes an input plug for plugging and unplugging with an audio input terminal, multiple audio output plugs for plugging and unplugging with various audio output terminals, and a wire harness connecting the input plug and each of the audio output plugs.
[0055] See Figure 1 and Figure 2 The audio adapter cable testing equipment includes:
[0056] Power supply component 1, the power supply component 1 includes a power supply mounting base 101 and a power supply interface 102 installed in the power supply mounting base 101 and used for plugging and unplugging connection with the input plug;
[0057] The power receiving component 2 includes a power receiving base 201 and a plurality of power receiving interfaces 202 installed in the power receiving base 201 and corresponding to each of the audio output plugs;
[0058] The test circuit board includes a power supply circuit that is electrically connected to the power supply component 1 and outputs voltage to the power supply component 1, and a power measurement circuit that is electrically connected to each of the power receiving interfaces 202 and detects the conduction state of each of the power receiving interfaces 202.
[0059] A plurality of test switches 3 are provided in one-to-one correspondence with each of the power receiving interfaces 202, and a test switch 3 is connected in series between the power measuring circuit and each of the power receiving interfaces 202.
[0060] Reporting device 4, which is electrically connected to the test circuit board, is used to report the conduction status of each of the power receiving interfaces 202;
[0061] The power supply component 1, the power receiving component 2, each of the test switches 3, and the reporting device 4 are all installed on the top surface of the chassis 5, and the test circuit board is located inside the chassis 5.
[0062] The audio adapter cable testing device provided by this utility model has the following testing process:
[0063] S10: Preparation Phase
[0064] S101: Insert the input plug of the multi-to-multi audio adapter cable to be tested into the power supply interface 102 of the test equipment (fixed in the power supply mounting bracket 101).
[0065] S102: Insert all audio adapter cable output plugs into the corresponding power receiving interface 202 on the power receiving fixture 201 at once (each output plug corresponds to one power receiving interface 202).
[0066] S20: Start Test
[0067] S201: The power supply circuit provides a test voltage (simulating the signal output of audio input terminals such as mobile phones) to the input plug of the audio adapter cable through the power supply interface 102.
[0068] S202: The electrical measuring circuit sequentially detects the conduction status of each power receiving interface 202:
[0069] By operating the test switch 3 connected in series with each power receiving interface 202, the switch is closed one by one, so that the power measuring circuit can detect whether the current power receiving interface 202 is conducting normally (i.e. whether the audio signal can be transmitted through the corresponding output plug).
[0070] If the positive and negative terminals of the power receiving interface 202 are connected, it indicates that the audio output plug is functioning normally; if the positive and negative terminals of the power receiving interface 202 are disconnected, it indicates that the audio output plug is faulty.
[0071] Furthermore, it can be determined whether the positive and negative terminals of the power receiving interface 202 are conducting by measuring the voltage drop or resistance between the positive and negative terminals.
[0072] S30: Result Reporting
[0073] The electrical testing circuit transmits the test results of each power receiving interface 202 to the reporting device 4 (such as a display screen, indicator light, or sound alarm) to display or record in real time which output plugs passed the test and which had faults.
[0074] S40: Test complete
[0075] After all audio output plugs have been tested, workers can unplug the multi-port audio adapter cable at once, eliminating the need for alternating plugging, unplugging, and testing.
[0076] The audio adapter cable testing equipment provided by this utility model can solve the problems in the background art. The key is that it significantly reduces testing costs and improves production efficiency through a dedicated testing interface and continuous detection mechanism.
[0077] Traditional testing methods rely on mobile phones and speakers as signal sources and output devices. However, mobile phones and speakers are high-value consumer electronics products, and their interfaces are not designed for frequent plugging and unplugging. Long-term testing can lead to interface wear and even device damage, resulting in high repair or replacement costs. In contrast, this testing equipment uses dedicated power supply interface 102 and power receiving interface 202. These interfaces use industrial-grade connectors, which are inexpensive and durable. Even if wear occurs after long-term use, only a single interface module needs to be replaced, rather than scrapping the entire device, thus significantly reducing testing costs.
[0078] Furthermore, traditional testing methods require workers to manually plug and unplug audio output plugs one by one, with each interface requiring a plug-and-unplug operation. This frequent interruption of the testing process leads to low efficiency. This device, however, allows all plugs to be tested to be inserted at once and automatically switches between interfaces via test switch 3, eliminating the need for manual intervention and enabling continuous testing, significantly improving production efficiency. Simultaneously, the electrical circuit directly detects electrical signals, which is more accurate and reliable than subjective judgment relying on sound playback from speakers. This allows for rapid identification of circuit faults, further enhancing testing reliability.
[0079] In summary, this device replaces high-value consumer electronics products with a low-cost dedicated interface, reducing equipment wear and tear; and reduces manual operation and improves testing efficiency through an automated testing mechanism, thus effectively solving the problems of high cost and low efficiency of traditional testing methods.
[0080] In this embodiment, the connection between the power supply mounting base 101 and the power receiving interface 202, as well as the connection between the power receiving mounting base 201 and each of the power receiving interfaces 202, are all detachable. This modular connection structure enables rapid interface replacement, and the mounting base can adapt to different interface specifications. This improves the versatility of the equipment while facilitating customized modifications for specific interface types. When an interface is damaged, only a single module needs to be replaced without rendering the entire equipment unusable.
[0081] Optionally, both the power supply mounting base 101 and the power receiving mounting base 201 include:
[0082] The fixed base 1011 has an interface positioning groove on its top for positioning the corresponding power supply interface 102 or power receiving interface 202.
[0083] A mounting cover 1012 is located above the mounting base 1011 and is used to cooperate with the mounting base 1011 to press the corresponding power supply interface 102 or power receiving interface 202.
[0084] Furthermore, the fixed seat cover 1012 and the fixed seat cover 1012 are provided with bolt holes 1013 for the locking bolt to pass through. After the locking bolt passes through the bolt holes 1013 of the fixed seat cover 1012 and the fixed seat cover 1012, it is threaded to the chassis 5.
[0085] The positioning groove design ensures the accuracy of interface installation, and its cover clamping structure prevents the interface from loosening during testing. The layered design facilitates the quick disassembly and maintenance of the interface module, and the standardized interface installation method reduces the assembly difficulty.
[0086] In this embodiment, the chassis 5 includes a base box 501 and a cover plate 502 located on top of the base box 501. One side of the cover plate 502 is hinged to the base box 501, and the other side is detachably connected to the base box 501 via a snap-fit assembly 503. The hinged opening design enables a quick maintenance channel, and the snap-fit assembly 503 balances sealing and ease of opening. Opening the snap-fit assembly 503 allows for maintenance of the internal test circuit boards, significantly reducing the time cost of equipment maintenance.
[0087] Optionally, both the power supply interface 102 and each of the power receiving interfaces 202 are electrically connected to the test circuit board via a wire assembly. Further, each power receiving interface 202 is provided with a screw-type connector 2021 or a plug-in connector electrically connected to the wire assembly. The screw-type connector 2021 provides a stable and reliable electrical connection, while the plug-in connector allows for quick replacement and maintenance.
[0088] Optionally, the reporting device 4 includes at least one of a display screen, indicator lights, or an audible alarm. Multi-mode reporting meets the needs of different testing environments. The display screen provides detailed test data recordings, the indicator lights enable rapid result judgment, and the audible alarm promptly alerts to faults. These multiple feedback methods not only improve the reliability of test results but also adapt to testing needs under different lighting and noise conditions.
[0089] In summary, the audio adapter cable testing equipment provided in this embodiment has the following advantages:
[0090] ① Dedicated industrial-grade interface design: The 202 industrial-grade power supply / receiving interface, which is durable and resistant to plugging and unplugging, is used to replace consumer electronics products, reducing equipment wear and tear and maintenance costs.
[0091] ② Modular and detachable structure: The power supply / receiving interface 202 is detachably connected to the mounting base, which facilitates quick replacement of damaged modules and improves equipment versatility and maintenance efficiency.
[0092] ③ Continuous testing mechanism: Multiple power receiving interfaces 202 are automatically switched and tested through test switch 3, without the need for manual plugging and unplugging, which significantly improves testing efficiency.
[0093] ④ Precise detection of electrical signals: The measuring circuit directly detects the continuity state (voltage / resistance), which is more reliable than traditional subjective listening judgment and improves the accuracy of testing.
[0094] ⑤ Layered fixing base design: The fixing base 1011 and the cover are fitted together to press the interface, and the positioning groove ensures the installation accuracy, prevents loosening during testing, and simplifies the disassembly and assembly process.
[0095] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. An audio adapter cable testing device for testing multi-channel audio adapter cables. The multi-channel audio adapter cable includes an input plug for plugging and unplugging with an audio input terminal, multiple audio output plugs for plugging and unplugging with various audio output terminals, and a wire harness connecting the input plug and each of the audio output plugs. Its features are, The audio adapter cable testing equipment includes: The power supply assembly (1) includes a power supply mounting base (101) and a power supply interface (102) installed in the power supply mounting base (101) and used for plugging and unplugging the input plug. The power receiving component (2) includes a power receiving base (201) and a plurality of power receiving interfaces (202) installed in the power receiving base (201) and corresponding to each of the audio output plugs. The test circuit board includes a power supply circuit that is electrically connected to the power supply component (1) and outputs voltage to the power supply component (1), and a power measurement circuit that is electrically connected to each of the power receiving interfaces (202) and detects the conduction state of each of the power receiving interfaces (202). A number of test switches (3) are provided in a one-to-one correspondence with each of the power receiving interfaces (202), and the test circuit is connected in series with each of the power receiving interfaces (202). The reporting device (4) is electrically connected to the test circuit board and is used to report the conduction status of each of the power receiving interfaces (202).
2. The audio adapter cable testing device according to claim 1, characterized in that, Also includes: The power supply component (1), the power receiving component (2), each of the test switches (3) and the reporting device (4) are all installed on the top surface of the chassis (5), and the test circuit board is located inside the chassis (5).
3. The audio adapter cable testing equipment according to claim 2, characterized in that, The connection between the power supply mounting base (101) and the power receiving interface (202), as well as between the power receiving mounting base (201) and each of the power receiving interfaces (202), are all detachable.
4. The audio adapter cable testing device according to claim 3, characterized in that, Both the power supply mounting base (101) and the power receiving mounting base (201) include: The fixed base (1011) has an interface positioning groove on its top for positioning the corresponding power supply interface (102) or the power receiving interface (202). A mounting cover (1012) is located above the mounting base (1011) and is used to cooperate with the mounting base (1011) to press the corresponding power supply interface (102) or power receiving interface (202).
5. The audio adapter cable testing device according to claim 4, characterized in that, The fixed seat cover (1012) and the fixed seat cover (1012) are provided with bolt holes (1013) for the locking bolt to pass through. After the locking bolt passes through the bolt holes (1013) of the fixed seat cover (1012) and the fixed seat cover (1012), it is threaded to the chassis (5).
6. The audio adapter cable testing equipment according to claim 2, characterized in that, The chassis (5) includes a bottom box (501) and a cover plate (502) located on top of the bottom box (501). One side of the cover plate (502) is hinged to the bottom box (501), and the other side is detachably connected to the bottom box (501) via a snap-fit assembly (503).
7. The audio adapter cable testing device according to claim 1, characterized in that, The power supply interface (102) and each of the power receiving interfaces (202) are electrically connected to the test circuit board via a wire assembly.
8. The audio adapter cable testing device according to claim 7, characterized in that, The power receiving interface (202) is provided with a screw connector (2021) or a plug-in connector that is electrically connected to the wire assembly.
9. The audio adapter cable testing device according to claim 1, characterized in that, The reporting device (4) includes at least one of a display screen, an indicator light, or a sound alarm.