A current sensor testing device

Abstract

The utility model discloses a current sensor testing arrangement, including organism shell, switch button, temperature sensor module etc. Organism shell integration single -phase voltage regulating transformer module, single -phase riser module etc. are connected through power management module to each module. The cover plate is detachable and has heat dissipation grid in the inside, and man -machine interaction module is embedded in the recess and is equipped with shock attenuation cushion etc. The power interface is waterproof and integrates surge protection circuit, and the communication interface contains USB port and is provided with a shielding layer. The test port is a multi-pin aviation plug. The single -phase voltage regulating transformer module and the single -phase riser module are connected by a shielded cable. The current sensor fixing clamp is installed on the sliding guide rail. The temperature sensor module uses a PT100 thermal resistance sensor. The power management module is integrated in a separate cavity. The device solves the problems of insufficient visualization processing capability, low data storage efficiency, low module standardization and fusion in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment testing technology, specifically a current sensor testing device. Background Technology

[0002] As a core component for accurate current parameter monitoring in electric and wind power generation equipment, the performance stability of current sensors directly affects the operational reliability of the entire system. In the research, development, production, and maintenance of current sensors, testing equipment is an essential tool for verifying key indicators such as sensor range accuracy, linearity, and temperature drift characteristics. With the increasing demands for current sensor performance in fields such as new energy power generation and smart grids, the limitations of traditional testing equipment in terms of data acquisition integrity, ease of operation, and environmental adaptability are becoming increasingly apparent, making it difficult to meet the needs of comprehensive sensor performance evaluation under complex operating conditions.

[0003] Common current sensor testing devices often suffer from fragmented functional modules. Their data acquisition systems typically focus only on the single parameter of the current signal, lacking the ability to simultaneously monitor multiple physical quantities such as temperature and stress, resulting in insufficient test data integrity. The user interface often uses traditional instrument displays, failing to intuitively present the correlation characteristics of multiple parameters, increasing the difficulty for operators to interpret abnormal sensor conditions. Furthermore, limited storage module capacity and closed data formats make it difficult to support long-term performance tracking and optimization analysis. The lack of unified design specifications for the mechanical structures and electrical interfaces between modules poses compatibility challenges when switching between laboratory and field testing scenarios, limiting the versatility and expansion of the testing device and failing to meet the requirements of wind power equipment testing. Therefore, a new current sensor testing device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a current sensor testing device to solve the technical problem of insufficient test data integrity due to the single data acquisition method, and the limitation on the versatility and expansion of the testing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a current sensor testing device, comprising:

[0006] The outer casing has a cover plate hinged to its rear, a human-computer interaction module inserted into the top of the outer casing, and a power interface installed on the side of the human-computer interaction module inside the outer casing.

[0007] The power switch button is located on the top of the housing, below the power interface. A communication interface is installed on the top edge of the housing. A test port is installed on the top of the housing, next to the human-machine interface module. The housing integrates a single-phase voltage regulating transformer module, a single-phase current booster module, a current sensor fixing fixture, and a current sensor signal acquisition module.

[0008] A temperature sensor module is installed at the coil of the single-phase current booster module. The outputs of the single-phase voltage regulating transformer module, the single-phase current booster module, the current sensor signal acquisition module, and the human-machine interaction module are all connected to the power management module via signal lines. The output of the single-phase voltage regulating transformer module is connected to the input of the single-phase current booster module via a cable. The output of the single-phase current booster module is connected to the primary side of the current sensor under test via a high-current copper busbar output terminal. The current sensor fixing fixture is installed on the outer periphery of the current sensor under test.

[0009] Preferably, the cover plate hinged to the rear of the housing is connected by a detachable hinge. The inner side of the cover plate is provided with a heat dissipation grid, and the edge of the cover plate is embedded with a sealing strip. The cover plate adopts a detachable hinge and heat dissipation grid design, which facilitates quick opening and closing during equipment maintenance. At the same time, the sealing strip ensures the dustproof performance of the internal modules. The heat dissipation grid and the housing form a natural convection channel, which improves the stability of long-term operation.

[0010] Preferably, the human-computer interaction module is embedded in a groove on the top of the outer shell of the machine body, and a shock-absorbing buffer pad is provided at the bottom of the groove. The outer periphery of the human-computer interaction module is equipped with an anti-slip frame. The touch screen surface of the human-computer interaction module is covered with scratch-resistant and wear-resistant glass. The back of the human-computer interaction module is connected to the output terminal of the current sensor signal acquisition module through a data cable. The human-computer interaction module is embedded in the shock-absorbing groove and equipped with an anti-slip frame, which effectively reduces the interference of operation vibration on the touch screen. The direct connection design between the scratch-resistant glass and the data cable protects the display interface and ensures the real-time signal transmission, thereby improving the efficiency of on-site debugging.

[0011] Preferably, the power interface is a waterproof AC220V socket. The power interface integrates a surge protection circuit. When the power interface is connected to the input terminal of the power management module, it is equipped with a reverse connection protection terminal. The power interface integrates surge protection and reverse connection protection terminal to avoid the impact of external voltage fluctuations on the internal power module. The waterproof socket structure is suitable for complex industrial environments, ensuring power supply reliability from the source.

[0012] Preferably, the communication interface includes a USB port, a Wi-Fi and Bluetooth module interface. The Wi-Fi and Bluetooth modules each have built-in antennas and communicate with the remote terminal through the antennas. A shielding layer is provided below the communication interface. The communication interface adopts a multi-standard combination and is equipped with a shielding layer. The USB port meets the local data export requirements. The Wi-Fi / Bluetooth module realizes wireless networking through the built-in antenna. The shielding layer effectively blocks electromagnetic interference and ensures stable transmission of remote control commands.

[0013] Preferably, the test port is a multi-pin aviation connector. The internal pins of the test port are respectively connected to the signal output terminal of the current sensor under test and the input terminal of the current sensor signal acquisition module. The test port uses an aviation connector and optimizes the pin correspondence. The multi-pin structure prevents signal misconnection, and the aviation-grade contacts ensure reliable connection even in vibration environments, improving the versatility and plug-in durability of the test cable.

[0014] Preferably, the single-phase voltage regulating transformer module and the single-phase current booster module are connected by a shielded cable. The outer layer of the shielded cable is wrapped with a metal braided mesh, and an overload protection circuit breaker is installed at the connection between the single-phase voltage regulating transformer module and the single-phase current booster module. The use of shielded cables and overload protection circuit breakers between single-phase modules, along with the metal braided mesh, effectively suppresses high-frequency interference. The overload protection device automatically cuts off the circuit in case of abnormal current, providing double protection for the safe operation of the core components.

[0015] Preferably, the current sensor fixing fixture is installed on a sliding guide rail inside the housing of the machine body. Limiting buckles are provided on both sides of the guide rail. The clamping force of the current sensor fixing fixture is adjusted by rotating the handle. The surface of the current sensor fixing fixture is coated with an insulating coating. The current sensor fixing fixture is equipped with a sliding guide rail and a rotating handle. The limiting buckles enable quick positioning. The rotary clamping force adjustment can adapt to different specifications of sensors. The insulating coating avoids the risk of accidental short circuit during testing.

[0016] Preferably, the temperature sensor module uses a PT100 resistance temperature detector (RTD) sensor. The temperature sensor module is arranged close to the coil winding of the single-phase current booster module. The signal line of the temperature sensor module is passed through a metal corrugated tube protective sleeve and then connected to the current sensor signal acquisition module. The use of a PT100 RTD sensor and its placement in close proximity to the coil enables accurate temperature measurement. The corrugated tube protective sleeve prevents the line from being bent or damaged, ensuring the synchronous acquisition of temperature parameters and current data.

[0017] Preferably, the power management module is integrated into an independent cavity inside the housing. The cavity sidewall of the housing has heat dissipation holes at positions corresponding to the power management module. The power management module provides power through a DC-DC converter. The independent cavity design of the power management module, combined with the heat dissipation hole layout, allows the DC-DC converter to centrally handle multiple power supply needs, the cavity isolation reduces electromagnetic coupling interference, and the heat dissipation holes optimize the hot air flow path, thus extending the service life of the power module.

[0018] Compared with the prior art, the present invention provides a current sensor testing device, which has the following advantages:

[0019] 1. This current sensor testing device integrates a human-machine interface module, a current sensor signal acquisition module, and a temperature sensor module to construct a multi-source data collaborative acquisition system. This allows the current sensor signal acquisition module to simultaneously acquire the current signal of the sensor under test, and the temperature sensor module to monitor the current booster coil temperature in real time. All data are integrated by the power management module and then transmitted to the human-machine interface module. This solves the problems of narrow data acquisition range and insufficient integration in existing devices. Furthermore, since operators can fully grasp the operating status of the current sensor through a visual interface, they can analyze various operating conditions in a timely manner, avoiding the lag in fault analysis caused by poor parameter visualization, and effectively improving the ability to control the overall performance of the sensor.

[0020] 2. This current sensor testing device achieves standardized power supply and data interaction for each module through a power management module, improving the overall modular integration of the device. The human-machine interface module has a built-in large-capacity storage unit that can store no less than 1000 sets of test records, supports USB export and PDF report generation, meeting the needs of large-scale dynamic data storage for real-time equipment inspection and subsequent optimization, and solving the problem of insufficient storage space in existing devices. Meanwhile, the integrated layout of each module within the casing adopts a standardized design, and the current sensor fixing fixture is compatible with various sensor specifications. Power interfaces, communication interfaces, and other components give the device good adaptability to various operating conditions, allowing for flexible application in laboratory and field testing scenarios, overcoming the shortcomings of traditional devices such as low modular integration and poor environmental adaptability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a block diagram of the system architecture of this utility model.

[0023] In the diagram: 1. Housing; 2. Cover plate; 3. Human-machine interface module; 4. Power interface; 5. Switch button; 6. Communication interface; 7. Test port; 8. Single-phase voltage regulating transformer module; 9. Single-phase current booster module; 10. Current sensor fixing fixture; 11. Current sensor signal acquisition module; 12. Temperature sensor module; 13. Power management module. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution: a current sensor testing device, comprising a housing 1, a cover plate 2, a human-machine interface module 3, a power interface 4, a switch button 5, a communication interface 6, a test port 7, a single-phase voltage regulating transformer module 8, a single-phase current booster module 9, a current sensor fixing clamp 10, a current sensor signal acquisition module 11, a temperature sensor module 12, and a power management module 13.

[0026] Please see Figure 1 The rear of the outer shell 1 is hinged with a cover plate 2. The top of the outer shell 1 is fitted with a human-computer interaction module 3. The power interface 4 is installed on the side of the human-computer interaction module 3 inside the outer shell 1. The cover plate 2 hinged at the rear of the outer shell 1 is connected by a detachable hinge. The inner side of the cover plate 2 is provided with a heat dissipation grid. The edge of the cover plate 2 is embedded with a sealing strip.

[0027] The switch button 5 is located on the top of the casing 1, below the power interface 4. A communication interface 6 is installed on the top edge of the casing 1. A test port 7 is installed on the top of the casing 1, located on the side of the human-machine interface module 3. Please refer to [link / reference]. Figure 2The casing 1 integrates a single-phase voltage regulating transformer module 8, a single-phase current booster module 9, a current sensor fixing fixture 10, and a current sensor signal acquisition module 11. The human-machine interface module 3 integrates a large-capacity storage unit. The human-machine interface module 3 is embedded in a recess on the top of the casing 1, with a shock-absorbing pad at the bottom of the recess. The outer perimeter of the human-machine interface module 3 is fitted with an anti-slip frame. The touchscreen surface of the human-machine interface module 3 is covered with scratch-resistant and wear-resistant glass. The back of the human-machine interface module 3 is connected to the output terminal of the current sensor signal acquisition module 11 via a data cable. The power supply... Port 4 uses a waterproof AC220V socket. The power interface 4 has an integrated surge protection circuit. When the power interface 4 is connected to the input terminal of the power management module 13, it is equipped with a reverse connection protection terminal. The communication interface 6 includes a USB port, Wi-Fi and Bluetooth module interfaces. The Wi-Fi and Bluetooth modules have built-in antennas and communicate with remote terminals through the antennas. A shielding layer is provided below the communication interface 6. The test port 7 is a multi-pin aviation plug. The internal pins of the test port 7 are respectively connected to the signal output terminal of the current sensor under test and the input terminal of the current sensor signal acquisition module 11.

[0028] The temperature sensor module 12 is installed at the coil of the single-phase current booster module 9. The outputs of the single-phase voltage regulating transformer module 8, the single-phase current booster module 9, the current sensor signal acquisition module 11, and the human-machine interface module 3 are all connected to the power management module 13 via signal lines. The output of the single-phase voltage regulating transformer module 8 is connected to the input of the single-phase current booster module 9 via a cable. The output of the single-phase current booster module 9 is connected to the primary side of the current sensor under test via a high-current copper busbar output terminal. The current sensor fixing clamp 10 is installed on the outer periphery of the current sensor under test. The single-phase voltage regulating transformer module 8 and the single-phase current booster module 9 are connected to the primary side of the current sensor under test via a high-current copper busbar output terminal. The current booster modules 9 are connected via shielded cables. By integrating the human-machine interface module 3, the current sensor signal acquisition module 11, and the temperature sensor module 12, a multi-source data collaborative acquisition system is constructed. This allows the current sensor signal acquisition module 11 to simultaneously acquire the current signal of the sensor under test, and the temperature sensor module 12 to monitor the current booster coil temperature in real time. All data is integrated by the power management module 13 and transmitted to the human-machine interface module 3. This solves the problems of narrow data acquisition range and insufficient integration in existing devices. Furthermore, because operators can fully grasp the operating status of the current sensor through a visual interface, they can promptly... Analyzing various operating conditions avoids delays in fault analysis due to poor parameter visualization, effectively improving the ability to control the overall performance of the sensor. The outer layer of the shielded cable is wrapped with a metal braided mesh, and an overload protection circuit breaker is installed at the connection between the single-phase voltage regulating transformer module 8 and the single-phase current booster module 9. The current sensor fixing clamp 10 is installed on the sliding guide rail inside the housing 1, and limit buckles are provided on both sides of the guide rail. The clamping force of the current sensor fixing clamp 10 is adjusted by rotating the handle, and the surface of the current sensor fixing clamp 10 is sprayed with an insulating coating. The temperature sensor module 12 uses a PT100 thermistor sensor. The temperature sensor module 12 is arranged close to the coil winding of the single-phase current booster module 9. The signal line of the temperature sensor module 12 is passed through the metal corrugated pipe protective sleeve and connected to the current sensor signal acquisition module 11. The power management module 13 realizes the standardized power supply and data interaction of each module, which improves the overall modular integration of the device. The human-machine interaction module 3 has a built-in large-capacity storage unit that can store no less than 1,000 sets of test records. It supports USB export and PDF report generation, which meets the needs of large dynamic data storage for real-time equipment inspection and subsequent optimization, and solves the problem of insufficient storage space in existing devices.Meanwhile, the integrated layout of each module within the housing 1 adopts a standardized design. The current sensor fixing fixture 10 is compatible with various sensor specifications. Components such as the power interface 4 and communication interface 6 enable the device to have good adaptability to working conditions and can be flexibly applied to laboratory and field testing scenarios. This overcomes the shortcomings of traditional devices, such as low module integration and poor environmental adaptability. The power management module 13 is integrated into an independent cavity inside the housing 1. The cavity sidewall of the housing 1 has heat dissipation holes at positions corresponding to the power management module 13. The power management module 13 provides power through a DC-DC converter.

[0029] This solution integrates a human-machine interface module 3, a current sensor signal acquisition module 11, and a temperature sensor module 12 to construct a multi-source data collaborative acquisition system. This allows the current sensor signal acquisition module 11 to simultaneously acquire the current signal of the sensor under test, and the temperature sensor module 12 to monitor the current booster coil temperature in real time. All data are integrated by the power management module 13 and then transmitted to the human-machine interface module 3. This solves the problems of narrow data acquisition range and insufficient integration in existing devices. Furthermore, since operators can fully grasp the operating status of the current sensor through a visual interface, they can analyze various operating conditions in a timely manner, avoiding the lag in fault analysis caused by poor parameter visualization, and effectively improving the ability to control the overall performance of the sensor. At the same time, the power management module 13 realizes standardized power supply and data interaction for each module, improving the overall modular integration of the device. The human-machine interface module 3 has a built-in large-capacity storage unit that can store no less than 1,000 sets of test records, supports USB export and PDF report generation, and meets the needs of large amounts of dynamic data storage for real-time equipment inspection and subsequent optimization, solving the problem of insufficient storage space in existing devices. Meanwhile, the integrated layout of each module within the outer casing 1 adopts a standardized design. The current sensor fixing fixture 10 is compatible with various sensor specifications. Components such as the power interface 4 and communication interface 6 enable the device to have good adaptability to working conditions and can be flexibly applied to laboratory and field testing scenarios, overcoming the shortcomings of traditional devices with low module integration and poor environmental adaptability.

[0030] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A current sensor testing device, characterized in that, include: The outer shell (1) has a cover plate (2) hinged to the rear of the outer shell (1), and a human-computer interaction module (3) is inserted into the top of the outer shell (1). A power interface (4) is installed on the side of the human-computer interaction module (3) inside the outer shell (1). A switch button (5) is located on the top of the housing (1) below the power interface (4). A communication interface (6) is installed on the top edge of the housing (1). A test port (7) is installed on the top of the housing (1) on the side of the human-machine interaction module (3). The housing (1) integrates a single-phase voltage regulating transformer module (8), a single-phase current booster module (9), a current sensor fixing fixture (10), and a current sensor signal acquisition module (11). The human-machine interaction module (3) integrates a large-capacity storage unit. The temperature sensor module (12) is installed at the coil of the single-phase current booster module (9). The output terminals of the single-phase voltage regulating transformer module (8), the single-phase current booster module (9), the current sensor signal acquisition module (11), and the human-machine interaction module (3) are all connected to the power management module (13) via signal lines. The output terminal of the single-phase voltage regulating transformer module (8) is connected to the input terminal of the single-phase current booster module (9) via a cable. The output terminal of the single-phase current booster module (9) is connected to the primary side of the current sensor under test via a high-current copper busbar output terminal. The current sensor fixing clamp (10) is installed on the outer periphery of the current sensor under test.

2. The current sensor testing device according to claim 1, characterized in that: The cover plate (2) hinged to the rear of the outer shell (1) is connected by a detachable hinge. The inner side of the cover plate (2) is provided with a heat dissipation grid, and the edge of the cover plate (2) is inlaid with a sealing strip.

3. The current sensor testing device according to claim 1, characterized in that: The human-computer interaction module (3) is embedded in the groove at the top of the outer shell (1), and a shock-absorbing buffer pad is provided at the bottom of the groove. The outer periphery of the human-computer interaction module (3) is equipped with an anti-slip frame. The touch screen surface of the human-computer interaction module (3) is covered with scratch-resistant and wear-resistant glass. The back of the human-computer interaction module (3) is connected to the output end of the current sensor signal acquisition module (11) through a data cable.

4. The current sensor testing device according to claim 1, characterized in that: The power interface (4) adopts a waterproof AC220V socket. The power interface (4) integrates a surge protection circuit. When the power interface (4) is connected to the input terminal of the power management module (13), it is equipped with a reverse connection protection terminal.

5. The current sensor testing device according to claim 1, characterized in that: The communication interface (6) includes a USB port, a Wi-Fi and a Bluetooth module interface. The Wi-Fi and Bluetooth modules are equipped with built-in antennas and communicate with remote terminals through the antennas. A shielding layer is provided below the communication interface (6).

6. The current sensor testing device according to claim 1, characterized in that: The test port (7) is a multi-pin aviation connector. The internal pins of the test port (7) are respectively connected to the signal output terminal of the current sensor under test and the input terminal of the current sensor signal acquisition module (11).

7. The current sensor testing device according to claim 1, characterized in that: The single-phase voltage regulating transformer module (8) and the single-phase current booster module (9) are connected by a shielded cable. The outer layer of the shielded cable is wrapped with a metal braided mesh, and an overload protection circuit breaker is provided at the connection between the single-phase voltage regulating transformer module (8) and the single-phase current booster module (9).

8. A current sensor testing device according to claim 1, characterized in that: The current sensor fixing clamp (10) is installed on a sliding guide rail inside the outer shell (1) of the machine body. Limiting buckles are provided on both sides of the guide rail. The clamping force of the current sensor fixing clamp (10) can be adjusted by rotating the handle. The surface of the current sensor fixing clamp (10) is sprayed with an insulating coating.

9. A current sensor testing device according to claim 1, characterized in that: The temperature sensor module (12) adopts a PT100 resistance temperature detector (RTD) sensor. The temperature sensor module (12) is arranged close to the coil winding of the single-phase current booster module (9). The signal line of the temperature sensor module (12) is connected to the current sensor signal acquisition module (11) after passing through the metal corrugated pipe protective sleeve.

10. A current sensor testing device according to claim 1, characterized in that: The power management module (13) is integrated into an independent cavity inside the housing (1). The side wall of the housing (1) is provided with heat dissipation holes at positions corresponding to the power management module (13). The power management module (13) is powered by a DC-DC converter.

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