A voltage / current sensor test device

Abstract

This application provides a voltage / current sensor testing device, belonging to the technical field of testing devices. The testing device includes a frame and a PCB circuit board mounted within the frame. The PCB circuit board includes a probe array for connecting the contacts of the sensor under test, and a terminal block for connecting an ammeter, an AC220V voltage regulator, and a current generator. Adjustable frame clips are provided on both sides of the frame, and the frame clips achieve rapid fixation of the sensor under test through a locking mechanism. The PCB circuit board has a centralized power switch to control the overall power supply. This enables rapid testing of voltage / current sensors.

Description

Technical Field

[0001] This utility model belongs to the field of testing device technology, and in particular relates to a voltage / current sensor testing device. Background Technology

[0002] In the fields of power system monitoring and industrial automation, the accuracy and reliability of voltage and current sensors are crucial for real-time monitoring of electrical parameters and prevention of system failures. With the development of smart grids and new energy technologies, efficient testing of these sensors has become a fundamental industry requirement for improving equipment safety and operational efficiency.

[0003] In the prior art, tooling equipment has been attempted to solve the sensor testing problem. For example, a dedicated testing device is designed to evaluate the function of bare PCB boards. For instance, the utility model patent with application number 20241709511.9 targets current sensor testing, optimizes the busbar circuit to reduce contact resistance, and achieves partial performance verification.

[0004] However, existing testing equipment cannot directly test assembled voltage / current sensors; the testing process requires manual connection of the alarm bus, voltage detection interface and current detection interface in sequence, which is complicated and inefficient; fixing the sensor relies on manual adjustment of the locking mechanism, which is time-consuming and labor costs are high. Utility Model Content

[0005] This invention provides a voltage / current sensor testing device to at least solve the problems of cumbersome wiring, low testing efficiency, and high labor costs in existing testing devices.

[0006] A voltage / current sensor testing device, the testing device comprising a frame and a PCB circuit board mounted in the frame; The PCB circuit board includes a probe array for connecting the contacts of the sensor under test, and a terminal block for connecting an ammeter, an AC220V voltage regulator, and a current generator. The frame is equipped with adjustable frame clips on both sides, which enable quick fixation of the sensor under test.

[0007] Furthermore, the frame is provided with an opening that extends along the length of the frame to allow for adjustment of the frame buckle position.

[0008] Furthermore, hexagonal nylon isolation pillars are provided between the frame and the PCB circuit board.

[0009] Furthermore, the terminal block assembly includes an alarm bus interface, a voltage detection interface, and a current detection interface; The alarm bus interface, voltage detection interface, and current detection interface are all connected to the probe array.

[0010] Furthermore, the alarm bus interface is used to connect an ammeter in series, the voltage detection interface is used to connect to the output terminal of an AC220V voltage regulator, and the current detection interface is used to connect to the signal output terminal of a current generator.

[0011] Furthermore, the PCB circuit board is equipped with a centralized power switch to control the overall power supply.

[0012] Furthermore, the opening is elliptical.

[0013] Furthermore, four hexagonal nylon isolation pillars are provided, which are located at the four corners of the PCB circuit board.

[0014] As can be seen from the above technical solutions, this utility model has the following advantages: The voltage / current sensor testing device provided in this application uses an alarm bus interface connected in series with an ammeter, a voltage detection interface connected to the output of an AC220V voltage regulator, and a current detection interface connected to the signal output of a current generator. The probe array can be connected to the contacts of the packaged sensor under test, solving the problem of not being able to directly test the assembled sensor as a whole, and realizing efficient testing of the complete function of the voltage / current sensor.

[0015] This application solves the problem of long sensor fixing time by setting adjustable frame buckles on both sides of the frame and using a locking mechanism to achieve quick fixing, thereby realizing the rapid locking and releasing of the sensor and reducing labor costs.

[0016] Without the need for individual wiring, this testing device enables rapid connection of the sensor under test to the ammeter, voltage regulator, and current generator, improving testing efficiency. Furthermore, all interfaces are centrally managed through terminal blocks, eliminating errors caused by manual wiring. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an electrical connection schematic diagram of a voltage / current sensor testing device in one embodiment.

[0019] Figure 2 This is a circuit diagram of a voltage / current sensor testing device in one embodiment.

[0020] Figure 3 This is a structural diagram of a voltage / current sensor testing device in one embodiment.

[0021] Figure 4 This is another structural diagram of a voltage / current sensor testing device in one embodiment.

[0022] Reference numerals: 1-Probe array; 2-Alarm bus interface; 3-Voltage detection interface; 4-Current detection interface; 5-Opening; 6-Hexagonal nylon isolation post; 7-Positioning hole. Detailed Implementation

[0023] To make the purpose, features, and advantages of this application more apparent and understandable, specific embodiments and accompanying drawings will be used to clearly and completely describe the technical solution protected by this application. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this patent.

[0024] In the following detailed description of a voltage / current sensor testing apparatus, various embodiments of this disclosure will be described more fully. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0025] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of this disclosure, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of this disclosure, the terms “comprising,” “having,” and their cognates are intended only to indicate a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of the foregoing.

[0026] In various embodiments of this disclosure, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0027] The terms used in the various embodiments of this disclosure (such as "first," "second," etc.) may modify various components in the various embodiments, but do not limit the corresponding components. For example, the above terms do not limit the order and / or importance of the components. The above terms are only used for the purpose of distinguishing one component from others. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, a first component may be referred to as a second component without departing from the scope of the various embodiments of this disclosure, and similarly, a second component may also be referred to as a first component.

[0028] It should be noted that if a description is made of "connecting" one component to another, then the first component can be directly connected to the second component, and a third component can be "connected" between the first and second components. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first and second components.

[0029] The term "user" as used in various embodiments of this disclosure may refer to a person using an electronic device, and may be a monitoring person, a testing person, or an operator.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This application provides a voltage / current sensor testing device, which solves the technical problems of the current urgent need for a voltage / current sensor testing device, such as cumbersome wiring, low testing efficiency, and high labor costs.

[0032] The technical solutions proposed in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 An electrical connection diagram of a voltage / current sensor testing device provided in an embodiment of this application is shown. Figure 1 As shown in the figure, an embodiment of this application provides a voltage / current sensor testing device, the testing device including a frame and a PCB circuit board installed in the frame; The PCB circuit board includes a probe array 1 for connecting the contacts of the sensor under test, and a terminal block for connecting an ammeter, an AC220V voltage regulator, and a current generator. The frame is equipped with adjustable frame clips on both sides, which enable quick fixation of the sensor under test.

[0034] It should be noted that the frame is provided with an elliptical opening 5, which extends along the length of the frame to achieve the adjustment of the frame buckle position.

[0035] In one exemplary embodiment, a hexagonal nylon isolation pillar 6 is provided between the rack and the PCB circuit board. A total of four hexagonal nylon isolation pillars 6 are provided, which are located at the four corners of the PCB circuit board.

[0036] According to another embodiment of the present invention, the terminal block assembly includes an alarm bus interface 2, a voltage detection interface 3, and a current detection interface 4; Alarm bus interface 2, voltage detection interface 3, and current detection interface 4 are all connected to probe array 1.

[0037] Combination Figure 1 and Figure 2 , Figure 1 The alarm bus interface 2 and current detection interface 4 correspond to Figure 2 K1 in Figure 1 probe array 1 in the middle corresponds to Figure 2 J2 and J1 in the middle.

[0038] Alarm bus interface 2 is connected to probe array 1. Specifically, the B+ pin of K1 is connected to the B+ pin of J1, and the B- pin of K1 is connected to the B- pin of J1.

[0039] The current detection interface 4 is connected to the probe array 1. Specifically, the IC2 pin of K1 is connected to the C2 pin of J1, and the IA1 pin of K1 is connected to the A1 pin of J1.

[0040] Voltage detection interface 3 is connected to probe array 1. Specifically, the L pin of K2 is connected in series with the A, B, and C pins of J2, and the N pin of K2 is connected in series with the N pin of J2.

[0041] According to an embodiment of this application, the alarm bus interface 2 is used to connect an ammeter in series, the voltage detection interface 3 is used to connect to the output terminal of an AC220V voltage regulator, and the current detection interface 4 is used to connect to the signal output terminal of a current generator.

[0042] As an example, the PCB board is equipped with a centralized power switch to control the overall power supply.

[0043] The working principle of this testing device is as follows: Sensor positioning and clamping: Align the bottom contacts of the assembled sensor under test with the probe array 1 on the PCB board.

[0044] The position of the frame buckle on both sides of the adjustable frame can be slidably adapted to different sizes through the elliptical opening 5, and the buckling and locking mechanism can quickly fix the sensor under test and the test device.

[0045] The rack clamping force contacts the PCB circuit board through hexagonal nylon isolation posts 6, while the insulation properties of the isolation posts provide an electrical safety barrier. Positioning holes 7 are also provided between the rack and the PCB circuit board for easy installation and fixation.

[0046] The metal contacts at the bottom of the sensor are in close contact with the probe array 1 on the PCB circuit board, forming the following path: An external ammeter is connected in series with alarm bus interface 2 to monitor alarm signals; Voltage detection interface 3 connects to the output of an AC220V voltage regulator to provide dynamic voltage; Current detection interface 4 is connected to the signal output terminal of the current generator to simulate the operating current; Without the need for individual wiring, this testing device enables rapid connection of the sensor under test to the ammeter, voltage regulator, and current generator, improving testing efficiency. Furthermore, all interfaces are centrally managed through terminal blocks, eliminating errors caused by manual wiring.

[0047] Integration test trigger: Pressing the centralized power switch energizes the entire test circuit. Probe array 1 synchronously transmits voltage / current signals to the sensor under test; The sensor under test operates under simulated working conditions and outputs data that is fed back to external analysis equipment.

[0048] Quick release and reset: After the test is completed, the rack latch is unlocked, and the sensor is detached from probe array 1. The elastic reset design of the isolation post 6 allows the device to instantly return to its initial state, and the next test piece can be directly replaced.

[0049] The test wiring consisting of J1, J2, K2 and K1 replaces manual wiring, and achieves "placement and connection" through precise matching of positioning holes and probes; A test vehicle composed of multiple test devices connected in series via terminals and wires can simultaneously test multiple sensors.

[0050] The rack fasteners and isolation columns provide dual protection, ensuring that mechanical fixation and electrical isolation are achieved simultaneously.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0052] For those skilled in the art, designing different forms of control circuits based on the teachings of this invention does not require creative effort. Changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of this invention still fall within the protection scope of this invention.

Claims

1. A voltage / current sensor test apparatus, characterized by, The testing device includes a frame and a PCB circuit board installed in the frame; The PCB circuit board includes a probe array (1) for connecting the contacts of the sensor under test, and a terminal block for connecting the ammeter, AC220V voltage regulator, and current generator. The frame is equipped with adjustable frame clips on both sides, which enable quick fixation of the sensor under test.

2. The voltage / current sensor test device of claim 1, wherein, The frame is provided with an opening (5), which extends along the length of the frame to achieve the adjustment of the frame buckle position.

3. The voltage / current sensor test device of claim 2, wherein, A hexagonal nylon isolation column (6) is provided between the frame and the PCB circuit board.

4. The voltage / current sensor test device of claim 3, wherein, The terminal block assembly includes an alarm bus interface (2), a voltage detection interface (3), and a current detection interface (4). The alarm bus interface (2), voltage detection interface (3), and current detection interface (4) are all connected to the probe array (1).

5. The voltage / current sensor test device of claim 4, wherein, The alarm bus interface (2) is used to connect the ammeter in series, the voltage detection interface (3) is used to connect the output terminal of the AC220V voltage regulator, and the current detection interface (4) is used to connect the signal output terminal of the current generator.

6. The voltage / current sensor test device of claim 5, wherein, The PCB circuit board is equipped with a centralized power switch to control the overall power supply.

7. The voltage / current sensor test device of claim 6, wherein, The opening (5) is elliptical.

8. The voltage / current sensor test device of claim 7, wherein, Four hexagonal nylon isolation pillars (6) are provided, and the four hexagonal nylon isolation pillars (6) are respectively located at the four corners of the PCB circuit board.

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