Modular universal electrical test adapter

Abstract

The utility model discloses a modular general electrical test adapter relates to electrical testing equipment technical field. Modular general electrical test adapter includes main connector module, branch integrated module, at least three different specifications test connector module and mechanical linkage protection mechanism. The first end of main connector module is equipped with standard general interface for connecting test instrument, the input of branch integrated module is fixedly connected with the second end of main connector module, and each test connector module is in parallelly arranged to the output thereof, mechanical linkage protection mechanism controls the on-off of all branch lines through the lever, and when the closing position, the physical disconnection electrical connection and lock quick plug-in mechanism are prevented from accidental plug-in. Each module realizes electrical communication through internal conductive cable. The utility model integrates multiple interfaces, supports quick switching and safe operation, and effectively solves the problem of cumbersome wiring, low efficiency and insufficient safety in the field test.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing equipment technology, and in particular to a modular universal electrical testing adapter. Background Technology

[0002] At electrical testing sites, workers often need to perform various tests on multiple devices, such as resistance testing, voltage measurement, and signal acquisition. Currently, existing technologies require carrying a large number of test leads with different connectors to the site, depending on the interface specifications of the different testing instruments and the equipment under test. For example, multimeters require banana plug test leads, oscilloscopes require BNC interface test leads, and circuit breaker testing requires U-clamp test leads. This increases the weight of the tool bag, especially when working at heights, where workers have to repeatedly carry test leads up and down, resulting in significant physical exertion.

[0003] Meanwhile, changing test items requires frequent plugging and unplugging of test cables: first disconnecting the old test cables from the instruments and equipment, then organizing the new test cables and reconnecting them. This process is prone to errors such as misconnecting live equipment due to messy cables, or wear and tear on the interfaces due to improper plugging and unplugging force. In high-voltage, high-current testing scenarios, frequent wiring can also lead to safety risks such as short circuits and electric shocks. This not only results in low work efficiency (an average wiring cycle takes 5-8 minutes) but also makes it difficult to guarantee safety. Current technology lacks a dedicated adapter that can integrate multiple interfaces, simplify the wiring process, and provide safety protection functions, thus failing to meet the needs of efficient and safe testing on-site. Utility Model Content

[0004] The purpose of this utility model is to provide a modular universal electrical test adapter, which aims to solve the technical problems of large test cable carrying capacity, frequent wiring, high safety risks, and poor interface compatibility in existing electrical tests.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a modular universal electrical test adapter, comprising:

[0006] The main connector module has a standard universal interface at its first end for connecting the output line of the test instrument;

[0007] A branch integration module, the input end of which is fixedly connected to the second end of the main connector module;

[0008] At least three test connector modules of different specifications are connected in parallel at the output end of the branch integration module;

[0009] A mechanical linkage protection mechanism is installed inside the branch integration module. It controls the on / off state of all parallel branches by operating a lever. When the lever is in the off position, the electrical connection between all test connector modules and the main connector module is physically disconnected, and the quick-plug mechanism is locked by a mechanical locking structure at the same time.

[0010] The main connector module, branch integration module, and each test joint module are electrically connected through internal conductive cables.

[0011] In some embodiments, the interior of the branch integration module housing is encapsulated with insulating material and has an integrated insulating isolation structure for physically and electrically isolating each parallel branch.

[0012] In some implementations, the output of the branch integration module is detachably connected to each test connector module via a quick-plug mechanism;

[0013] The quick-plug mechanism is a rotating buckle structure with a self-locking function. When it is plugged in and rotated at a preset angle, it can mechanically lock and connect the circuit. When it is pulled out, it can be unlocked by rotating in the opposite direction. The output end of the branch integration module and the connection between each test connector module are provided with an anti-misplugging mechanism. The anti-misplugging mechanism includes unique physical key positions or color codes so that test connector modules of different specifications can only be connected to the corresponding designated ports.

[0014] In some embodiments, the quick-release mechanism is a snap-fit, threaded, or magnetic connection structure.

[0015] In some embodiments, the at least three test connector modules include a pin-type test connector, a U-type test connector, and a plug-in test connector.

[0016] In some embodiments, the pin diameter of the pin-type test connector is 2 mm to 10 mm, and the pin surface is gold-plated.

[0017] In some embodiments, the opening size of the U-shaped test connector is 5 mm to 25 mm.

[0018] In some embodiments, the pluggable test connector is a shovel-shaped terminal block, a ring-shaped terminal block, or an alligator clip.

[0019] In some embodiments, the housing of the main connector module is provided with anti-slip texture and status indicator lights.

[0020] In some implementations, the standard universal interface of the main connector module is a banana plug interface, a BNC interface, or an aviation plug interface; and / or,

[0021] The modular universal electrical test adapter also includes a portable storage component, which includes a flip cover hinged to the housing of the branch integration module and a custom slot provided on the inside of the flip cover. The flip cover can be flipped closed to store and fix the test adapter module around the branch integration module.

[0022] Compared with the prior art, the modular universal electrical test adapter of this utility model has at least the following beneficial effects:

[0023] Integrated and modular design: By integrating the main connector module, branch integration module and multiple test connector modules of different specifications, multiple interfaces are integrated into a single device, avoiding the cumbersome process of carrying a large number of test lines in the field, significantly simplifying the wiring process, and reducing the number of tools and physical labor consumption.

[0024] High efficiency and flexibility: The branch integration module outputs multiple test connector modules in parallel, supporting quick switching between different interfaces. This eliminates the need for frequent plugging and unplugging of the main connector and test instruments, significantly shortening test preparation and switching time and improving testing efficiency. It is especially suitable for continuous testing scenarios involving multiple devices and multiple projects.

[0025] Safety protection mechanism: The built-in mechanical linkage protection mechanism controls the on / off of all branches through the lever. In the off state, the electrical connection is physically disconnected and the quick plug-in mechanism is locked, which effectively prevents accidental electric shock, connector detachment or misplugging, and improves the safety of operation, especially in high-altitude or vibrating environments.

[0026] Insulation and isolation performance: The branch integrated module is internally potted with insulating material and adopts an integrated molded insulation and isolation structure, which realizes physical and electrical isolation between branches, reduces electromagnetic interference and fault propagation risk between branches, and has high insulation withstand voltage, ensuring the accuracy of test data and equipment stability.

[0027] Anti-misinsertion and quick connection: The quick-plug mechanism, combined with anti-misinsertion design (such as physical keys or color coding), ensures that different connector modules can only be connected to the corresponding ports, avoiding equipment damage or testing errors caused by incorrect insertion. At the same time, the rotating buckle and other structures enable quick one-handed assembly and disassembly, making operation convenient.

[0028] Wide Adaptability: The test connector modules cover various types, including pin-type, U-type, and plug-in types (such as spade terminals, ring terminals, and alligator clips). Interface sizes are adjustable (e.g., pin diameter 2-10mm, U-type opening 5-25mm), adapting to most electrical equipment interfaces without the need for additional adapters, thus expanding the application range. Durability and Reliability: Key components such as pins are gold-plated, reducing contact resistance and enhancing wear resistance and oxidation resistance; the anti-slip texture and elastic design of the U-shaped connector ensure connection stability and extend service life.

[0029] Status visualization and user-friendly design: The main connector module housing is equipped with anti-slip texture and status indicator lights, providing a stable grip and intuitive feedback on the working status, avoiding test delays caused by circuit failures or malfunctions, and improving the ease of operation and safety.

[0030] Portability and convenient storage: Optional portable storage components (such as flip covers and custom card slots) allow all connector modules to be stored and secured in one place, reducing the risk of losing loose parts. The overall size is small, easy to carry and store, and suitable for mobile field operations.

[0031] Universal compatibility: The main connector module supports standard interfaces such as banana plug, BNC, and aviation plug, making it compatible with mainstream testing instruments. No additional adapters are required, reducing equipment configuration costs.

[0032] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the modular universal electrical test adapter provided in this embodiment of the utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Main connector module;

[0037] 2. Branch integration module;

[0038] 3. Pin-type test connector;

[0039] 4. U-shaped test joint;

[0040] 5. Plug-in test connector. Detailed Implementation

[0041] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0042] In the description of this utility model, it should be clarified that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "back," "left," "right," "up," "down," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] like Figure 1 As shown, this utility model embodiment provides a modular universal electrical test adapter, comprising:

[0045] The main connector module 1 has a standard universal interface at its first end for connecting the output line of the test instrument;

[0046] Branch integration module 2, the input end of which is fixedly connected to the second end of the main connector module 1;

[0047] At least three test connector modules of different specifications are connected in parallel at the output end of the branch integration module 2;

[0048] A mechanical linkage protection mechanism is installed inside the branch integration module 2. It controls the on / off state of all parallel branches by operating a lever. When the lever is in the off position, the electrical connection between all test connector modules and the main connector module 1 is physically disconnected, and the quick-plug mechanism is locked by a mechanical locking structure to prevent the connector from being accidentally pulled out or inserted.

[0049] The main connector module 1, the branch integration module 2, and each test connector module are electrically connected through internal conductive cables.

[0050] In this embodiment, the modular universal electrical test adapter is based on the main connector module 1, the branch integration module 2, at least three test connector modules of different specifications, and the mechanical linkage protection mechanism, forming a complete operation system of "single access - multiple specifications output - safety management and control", which can adapt to the testing needs of multiple devices and multiple projects in the electrical test site.

[0051] Before use, connect the standard universal interface at the first end of the main connector module 1 to the output line of the test instrument. The interface design conforms to the specifications of mainstream test instruments, and no additional adapter is required. Simply plug it in to achieve initial fixation. Then confirm that the input end of the branch integration module 2 is fixedly connected to the second end of the main connector module 1. The two are electrically connected through internal conductive cables. At this time, the three test connector modules connected in parallel at the output end of the branch integration module 2 are in a ready-to-use state.

[0052] When conducting the test, first move the lever of the mechanical linkage protection mechanism to the "open" position. The internal linkage structure drives the contacts to close, forming a path between all test connector modules and main connector module 1. Operators can then select the appropriate test connector module to connect to the device according to the interface specifications of the device under test (e.g., using a pin-type small-hole interface or a U-shaped bolt terminal). If it is necessary to change the test item or the device under test, there is no need to disconnect the main connector module 1 from the test instrument; simply switch to a different test connector module. This avoids the risk of interface wear and misconnection caused by frequent plugging and unplugging of the test instrument's output cable in traditional operations.

[0053] When testing is paused or a connector module needs to be replaced, move the lever to the "off" position. On one hand, the internal contacts physically separate, cutting off the electrical connection between all test connector modules and the main connector module 1, preventing accidental contact with a live circuit even if a connector is accidentally touched. On the other hand, the mechanical locking structure simultaneously locks the quick-release mechanism, preventing the connector module from being accidentally pulled out or inserted. This is especially important during work at heights, avoiding test interruptions or safety hazards caused by connector detachment due to collisions. The entire operation eliminates the need to carry numerous test cables of different specifications; multiple tests can be completed using only a single adapter, significantly reducing the physical burden on staff and shortening on-site preparation time. Simultaneously, the linkage protection design reduces the risk of accidental contact and connection, meeting the needs of both on-site safety and efficiency.

[0054] In some embodiments, the interior of the branch integration module 2 housing is encapsulated with insulating material and has an integrated insulating isolation structure for physically and electrically isolating each parallel branch.

[0055] In this embodiment, the interior of the branch integration module 2 is encapsulated with epoxy resin insulating material and has an integrated insulating isolation structure. Through the dual protection of "material insulation + structural isolation", the stability and safety of multiple branches working in parallel are ensured.

[0056] The potting insulating material fills the internal gaps of the branch integrated module 2, forming a dense insulating layer. This not only isolates the internal circuitry from external environmental factors such as moisture and dust, but also avoids the risk of leakage due to air conductivity between branches. The integrated insulating isolation structure physically separates each parallel branch into an independent chamber. Each chamber corresponds to the connection circuit of a test connector module. Even if the insulation of one branch is accidentally damaged, it will not affect the normal operation of other branches, effectively preventing the spread of faults.

[0057] In high-voltage testing scenarios (such as insulation resistance testing), the insulating material and isolation structure can withstand high voltage surges, preventing breakdown discharge between branches. During multi-parameter synchronous testing (such as simultaneous voltage and current measurement), the isolation structure reduces electromagnetic interference between different branches, ensuring accurate test data. Compared to traditional non-isolated wiring methods, this design reduces inter-branch interference errors by more than 80%, increases insulation withstand voltage to 5kV, adapts to complex testing environments, and solves the problems of susceptibility to interference and poor insulation in traditional wiring, ensuring the accuracy of test data and operational safety.

[0058] In some implementations, the output of the branch integration module is detachably connected to each test connector module via a quick-plug mechanism;

[0059] The quick-plug mechanism is a rotating buckle structure with a self-locking function. When it is plugged in and rotated at a preset angle, it can mechanically lock and connect the circuit. When it is pulled out, it can be unlocked by rotating in the opposite direction. The output end of the branch integration module 2 is provided with an anti-misplugging mechanism at the connection between it and each test connector module. The anti-misplugging mechanism includes unique physical key positions or color codes so that test connector modules of different specifications can only be connected to the corresponding designated ports.

[0060] In this embodiment, the output end of the branch integration module 2 is detachably connected to each test connector module through a rotary snap-fit ​​quick-plug mechanism with a self-locking function. At the same time, the connection point is equipped with a physical key or color-coded anti-misinsertion mechanism. The two work together to achieve "quick disassembly and assembly - precise docking".

[0061] When installing the test connector module, first confirm compatibility using the anti-misinsertion mechanism: If a physical key design is used, align the raised key on the connector module with the groove on the output end of branch integration module 2; if a color-coded design is used, align the connectors with the same color code to the port, ensuring that connector modules of different specifications can only be connected to the corresponding ports, avoiding interface damage or circuit failure due to incorrect insertion. After alignment, push the connector module into the port and rotate it at a preset angle (usually 90° or 180°). The quick-release mechanism's latch will automatically engage in the slot, achieving mechanical locking while closing the internal contacts to connect the circuit, completing the fixing and power-on without the need for tools.

[0062] During disassembly, rotate the connector module in the reverse direction to the initial angle; the clip will disengage from the slot, and the connection can be easily broken by gently pulling it out. This process is particularly convenient for work at heights—workers can complete the disassembly and assembly with one hand, eliminating the need to carry wrenches or other tools, thus reducing the number of tools and operating steps required for high-altitude operations. The anti-misinsertion design avoids misinsertion caused by insufficient lighting or hasty operation, significantly improving work efficiency and safety, and solving the pain points of traditional connectors being cumbersome to assemble and disassemble and prone to misinsertion.

[0063] In some embodiments, the quick-release mechanism is a snap-fit, threaded, or magnetic connection structure.

[0064] In this embodiment, the quick-plug mechanism can be selected from snap-fit, threaded, or magnetic structures according to on-site requirements. Different structures are suitable for different test environments, improving the adaptability of the adapter.

[0065] When using the snap-fit ​​structure, align the test connector module with the output end of the branch integration module 2 and push it in. A "click" sound indicates that the snap-fit ​​is locked and the circuit is connected. To disassemble, simply press the snap-fit ​​release button to pull it out. This is the fastest operation and is suitable for scenarios that require frequent connector replacement (such as continuous testing of multiple projects), saving switching time.

[0066] If the test environment is subject to vibration (such as near high-voltage equipment in a substation), a threaded structure is recommended: screw the connector module into the threaded port of the output end of the branch integration module 2 until it is tightened. The thread engagement provides stronger fixing force and prevents the connector from loosening due to vibration. Disassembly can be done by rotating in the opposite direction. Although the operation is slightly slower, it is more stable and suitable for long-term testing in vibration environments.

[0067] For scenarios with confined spaces where manual force is inconvenient (such as testing internal wiring of equipment), the magnetic structure is more suitable: the connector module and port have built-in strong magnets that automatically attract each other after alignment, and the internal contacts connect and are energized at the same time; disassembly can be done with a little force without rotation or pressing, allowing for quick assembly and disassembly in confined spaces, solving the problem of difficult operation of traditional structures in narrow spaces. Three structures can be flexibly selected according to the site environment, making the adapter suitable for more testing scenarios and improving overall practicality.

[0068] In some embodiments, the at least three test connector modules include a pin-type test connector 3, a U-shaped test connector 4, and a plug-in test connector 5.

[0069] In this embodiment, at least three test connector modules are pin-type test connector 3, U-type test connector 4, and plug-in test connector 5. These three specifications cover the interface types of most electrical test equipment, eliminating the need to carry multiple test leads. Different equipment can be tested simply by switching connector modules.

[0070] When the interface of the device under test is a small hole (such as a small sensor signal interface), the pin-type test connector 3 is selected. The pin is inserted into the device interface and the pin fits tightly with the interface to ensure stable signal or current transmission. It is suitable for small current and small signal tests with high accuracy requirements (such as temperature sensor calibration).

[0071] If the interface of the device under test is bolt-shaped or terminal (such as the terminal block in the distribution box), then use the U-shaped test connector 4. Attach the U-shaped opening to the bolt or terminal, and the inside of the opening is in close contact with the conductor. The connection can be completed without removing the bolt. This is suitable for high-voltage and high-current tests (such as circuit breaker circuit resistance tests) and avoids the cumbersome operation caused by the need to remove bolts in traditional wiring.

[0072] For equipment interfaces with flat terminals, ring terminals, or bare wires (such as relay coil terminals), the pluggable test connector 5 is more convenient: if it is a shovel-shaped terminal, it can be directly inserted into the slot of the flat terminal; if it is a ring terminal, it can be put on the bolt and tightened; if it is a bare wire, it can be clamped with an alligator clip. The three forms can quickly adapt to different terminal types without additional crimping or soldering, which greatly shortens the wiring time and solves the problem of having to carry multiple connector test lines in the past.

[0073] In some embodiments, the pin diameter of the pin-type test connector 3 is 2 mm to 10 mm, and the pin surface is gold-plated.

[0074] In this embodiment, the pin diameter of the pin-type test connector 3 is designed to be adjustable from 2mm to 10mm, and the pin surface is gold-plated. The docking accuracy and transmission stability are improved through "size adaptation + material optimization".

[0075] When using it, first select the corresponding diameter pin according to the diameter of the interface of the device under test. For example, if the diameter of the device interface is 3mm, select a 3mm diameter pin and control the gap between the pin and the diameter at 0.1-0.2mm to ensure that the pin is not loose after insertion and to avoid signal fluctuations caused by contact gaps during the test. If the diameter of the device interface is 8mm, select an 8mm diameter pin to achieve a tight connection. This is suitable for various scenarios from small diameter (such as electronic component testing) to large diameter (such as power interfaces of industrial equipment).

[0076] The gold plating on the pin surface significantly reduces contact resistance. With the gold plating thickness controlled at 5-10μm, it ensures good conductivity while also providing excellent wear resistance and oxidation resistance. In low-current tests (such as microampere-level leakage current tests), the low contact resistance avoids test errors caused by resistive voltage division. After long-term use, the gold plating is less prone to wear or oxidation, extending the pin's lifespan by more than three times. This solves the problems of high contact resistance and easy oxidation and wear of traditional copper pins, ensuring accurate test data and connector durability.

[0077] In some embodiments, the opening size of the U-shaped test connector 4 is 5 mm to 25 mm.

[0078] In this embodiment, the opening size of the U-shaped test connector 4 is designed to be 5mm to 25mm, which can be flexibly adapted according to the bolt diameter or terminal size of the device under test, and can connect to columnar interfaces of different specifications without replacing the connector body.

[0079] When conducting the test, first measure the diameter of the terminal or bolt of the device under test: if the diameter is 6mm (such as the terminal of a miniature circuit breaker), select a U-shaped connector with an opening size of 5-8mm, and attach the opening to the terminal. The conductive pad inside the opening should be in close contact with the terminal to ensure stable current transmission. If the bolt diameter is 20mm (such as the high-voltage terminal of a transformer), select a U-shaped connector with an opening size of 18-25mm. Similarly, a tight connection can be achieved, and wiring can be completed without disassembling the bolt, avoiding the trouble of carrying multiple U-shaped clamps according to the bolt size.

[0080] The U-shaped connector has anti-slip textures on the inside of the opening, which increases the friction with the terminal after it is snapped on. Even in a slightly vibrating environment, the connector will not slip and cause poor contact. At the same time, the opening is designed with elasticity, which can deform slightly when snapped on to adapt to the small protrusions or scratches on the surface of the terminal, ensuring sufficient contact area. This solves the problems of fixed opening and poor adaptability of traditional U-shaped connectors, and improves the flexibility and stability of docking.

[0081] In some embodiments, the pluggable test connector 5 is a shovel-shaped terminal block, a ring-shaped terminal block, or an alligator clip.

[0082] In this embodiment, the pluggable test connector 5 includes three types: shovel-shaped terminal block, ring terminal block, and alligator clip. Each type is adapted to the interface of the test equipment with different structures, further expanding the applicability of the adapter.

[0083] When the interface of the device under test is a flat terminal (such as PLC input / output terminal), a spade-shaped terminal is selected. The opening of the spade-shaped terminal is inserted into the slot of the flat terminal, and the conductive plate on the inside of the terminal is tightly attached to the flat terminal. Power can be turned on without screws. It is suitable for scenarios where space is limited and screws are inconvenient to tighten. The operation time is reduced by 80% compared with traditional screw fixing.

[0084] If the device interface is a bolt terminal with a fixing hole (such as a motor junction box terminal), a ring terminal is more suitable: simply put the hole of the ring terminal on the bolt and tighten the bolt to fix it. The ring structure ensures that the terminal and the bolt are in full contact, avoiding the problem of overheating caused by insufficient contact area. It is suitable for high current testing scenarios (such as motor winding resistance testing).

[0085] For bare wires or thin terminals without fixed interfaces (such as sensor leads), alligator clips enable quick connection—squeeze open the handle of the alligator clip, clamp the wire or thin terminal into the jaws, and the toothed structure on the inside of the jaws increases friction to prevent slippage. The jaws are also wrapped with insulating material to avoid accidental contact with other conductors, making them suitable for temporary wiring tests (such as continuity testing). Three types of pluggable connectors can be flexibly selected according to the equipment interface, eliminating the need to carry multiple dedicated test leads and significantly improving on-site work efficiency.

[0086] In some embodiments, the housing of the main connector module 1 is provided with anti-slip texture and status indicator lights.

[0087] In this embodiment, the housing of the main connector module 1 is provided with anti-slip texture and status indicator lights, which improves the ease of operation and safety through "grip optimization + status visualization".

[0088] When performing docking operations with the main connector module 1 by hand, the anti-slip texture on the surface of the housing (using an alternating concave and convex grid design) increases the friction between the hand and the housing. Even if the hand is covered with oil or sweat, it can be held stably, preventing the module from slipping and causing damage to the interface or injury to personnel. Especially when working at heights, a stable grip can reduce the risk of accidental drops.

[0089] The status indicator lights display the adapter's operating status in real time: when the mechanical linkage protection mechanism is in the "on" position and the circuit is normally connected, the indicator light illuminates green; if there is an open circuit (such as the connector not being properly inserted) or the lever is in the "off" position, the indicator light goes out; if there is a short circuit risk (such as damaged branch insulation), the indicator light flashes red. Operators can intuitively determine whether the adapter is in normal working condition through the indicator lights, avoiding testing delays caused by circuit malfunctions or safety hazards caused by undetected short circuits, thus solving the problem of traditional adapters lacking status indicators and requiring repeated checks.

[0090] In some embodiments, the standard universal interface of the main connector module 1 is a banana plug interface, a BNC interface, or an aviation plug interface; and / or,

[0091] The modular universal electrical test adapter also includes a portable storage component, which includes a flip cover hinged to the housing of the branch integration module 2, and a custom slot provided on the inside of the flip cover. The flip cover can be flipped closed to store and fix the test adapter module around the branch integration module 2.

[0092] In this embodiment, the standard universal interface of the main connector module 1 includes banana plug interface, BNC interface or aviation plug interface, and is equipped with portable storage components. Through "interface compatibility + convenient storage", the practicality and portability of the adapter are further improved.

[0093] When connecting test instruments, select the corresponding main connector module 1 interface according to the instrument's output interface type: If the instrument is a multimeter, power supply, or other common equipment, its output interface is mostly a banana plug, so simply connect the banana plug interface of the main module; if the instrument is an oscilloscope or signal generator, the BNC interface can achieve stable transmission of high-frequency signals and avoid signal attenuation; if the test environment is outdoor or in a high-dust scenario (such as outdoor power distribution box testing), the aviation plug interface has better sealing performance, which can prevent dust and rainwater from entering the interface and affecting conductivity. The three interfaces cover more than 95% of test instrument types, eliminating the need to carry additional adapters and solving the problem of traditional adapter interfaces being single and requiring frequent adaptation.

[0094] The portable storage component includes a flip cover that hinges to the housing of the branch integration module 2, and custom-designed slots on the inside of the flip cover. After testing, each test connector module is detached from the branch integration module 2 and placed into the corresponding custom-designed slots on the inside of the flip cover (each slot's shape matches the connector module to prevent movement). The flip cover is then flipped and snapped shut, securing all connector modules around the branch integration module 2 and preventing connector loss or damage. The overall size of the adapter is reduced by 40% after storage, making it easy to carry in a tool bag. This solves the problem of traditional test lines and connectors being scattered and easily lost, improving the convenience of on-site carrying and storage.

[0095] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0096] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A modular universal electrical test adapter, characterized in that, include: The main connector module (1) has a standard universal interface at its first end for connecting the output line of the test instrument; The branch integration module (2) has its input end fixedly connected to the second end of the main connector module (1); At least three test connector modules of different specifications are arranged in parallel at the output end of the branch integration module (2); The mechanical linkage protection mechanism is located inside the branch integration module (2). It controls the on / off state of all parallel branches by operating the lever. When the lever is in the off position, the electrical connection between all test connector modules and the main connector module (1) is physically disconnected, and the quick plug-in mechanism is locked by the mechanical locking structure at the same time. The main connector module (1), the branch integration module (2) and each test connector module are electrically connected through internal conductive cables.

2. The modular universal electrical test adapter according to claim 1, characterized in that, The branch integration module (2) has an insulating material inside its housing and an integrated insulating isolation structure for physically and electrically isolating each parallel branch.

3. The modular universal electrical test adapter according to claim 1 or 2, characterized in that, The output of the branch integration module is detachably connected to each test connector module via a quick-plug mechanism. The quick insertion and removal mechanism is a rotating buckle structure with a self-locking function. When it is inserted into place and rotated at a preset angle, it can mechanically lock and connect the circuit. When it is pulled out, it can be unlocked by rotating in the opposite direction. The output end of the branch integration module (2) and the connection point of each test connector module are provided with an anti-misinsertion mechanism. The anti-misinsertion mechanism includes unique physical key positions or color codes so that test connector modules of different specifications can only be connected to the corresponding designated ports.

4. The modular universal electrical test adapter according to claim 3, characterized in that, The quick-plug mechanism is a snap-fit, threaded, or magnetic connection structure.

5. The modular universal electrical test adapter according to claim 1, characterized in that, The at least three test connector modules include a pin-type test connector (3), a U-shaped test connector (4), and a plug-in test connector (5).

6. The modular universal electrical test adapter according to claim 5, characterized in that, The pin diameter of the pin-type test connector (3) is 2mm to 10mm, and the pin surface is gold-plated.

7. The modular universal electrical test adapter according to claim 5, characterized in that, The opening size of the U-shaped test connector (4) is 5mm to 25mm.

8. The modular universal electrical test adapter according to claim 5, characterized in that, The plug-in test connector (5) is a shovel-shaped terminal block, a ring terminal block, or an alligator clip.

9. The modular universal electrical test adapter according to claim 1, characterized in that, The housing of the main connector module (1) is provided with anti-slip texture and status indicator lights.

10. The modular universal electrical test adapter according to claim 1, characterized in that, The standard universal interface of the main connector module (1) is a banana plug interface, a BNC interface, or an aviation plug interface; and / or, The modular universal electrical test adapter also includes a portable storage component, which includes a flip cover hinged to the housing of the branch integration module (2) and a custom slot provided on the inside of the flip cover. The flip cover can be flipped closed and the test adapter module is stored and fixed around the branch integration module (2).

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