Miniaturized phase analysis detection device

Abstract

The utility model discloses a miniaturized phase analysis and detection device, and relates to the technical field of relays. The technical problems that a traditional phase analysis and detection device is often large in size, complex in structure, tedious in operation and not beneficial to portability and field application are solved. A miniaturized phase analysis and detection device comprises a phase analysis and detection device body, a power input port and a control signal input port are formed in the two sides of the phase analysis and detection device body respectively, the upper surface of the phase analysis and detection device body is movably connected with a transparent protection cover through a pin shaft, and the power input port is electrically connected with an external circuit through a wire. The control signal input port is electrically connected with the three-phase circuit; the size of the phase analysis and detection device is very small, so that the whole device can be suitable for an environment with a limited space, the use flexibility is improved, and the phase analysis and detection device has the characteristics of small size, high precision and strong stability, and can meet the requirements of various miniaturized and high-precision electrical control systems.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a miniaturized phase analysis detection device. Background Technique

[0002] Phase analysis has extensive applications in multiple fields, such as wireless communication, radar detection, biological signal analysis, etc. Regarding the existing phase analysis detection devices, a Chinese patent with the publication number CN203166469U discloses a phase sequence protection relay, which includes a phase sequence detection circuit, a processor, and a relay execution circuit. The phase sequence detection circuit is used to detect the voltage and phase of a three-phase power supply. When the three-phase power supply is abnormal, the phase sequence detection circuit outputs a signal to the processor. After receiving this signal, the processor immediately outputs a disconnection signal to the relay execution circuit, thereby controlling the action control mechanism to disconnect. When there are serious imbalances in the three-phase voltages of the power grid, open phases, wrong phase sequences, repeated grounding of the neutral line, a metallic short circuit to ground occurs in one phase of the power grid while a person touches any one of the other two phase lines of the power grid, resulting in the failure of the protection measures and endangering personal safety, this phase sequence protection relay can quickly act to trip and cut off the power supply.

[0003] Although the above patent can perform closing and opening actions, traditional phase analysis detection devices are often bulky, have complex structures, and are cumbersome to operate, which is not conducive to portability and on-site applications. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a miniaturized phase analysis detection device. The size of the phase analysis detection device is very small, enabling the entire device to be applicable to environments with limited space, improving the flexibility of use, and having the characteristics of small size, high precision, and strong stability. It can meet the requirements of various miniaturized and high-precision electrical control systems and can solve the problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A miniaturized phase analysis detection device includes a phase analysis detection device. Power input ports and control signal input ports are respectively installed on both sides of the phase analysis detection device. The upper surface of the phase analysis detection device is movably connected to a transparent protective cover through a pin shaft. An indicator light and an adjustment knob are respectively arranged on the upper surface of the phase analysis detection device. The power input port is electrically connected to an external circuit through a wire, and the control signal input port is electrically connected to a three-phase circuit.

[0007] Preferably, the width of the phase analysis detection device is 18 mm, the length is 90 mm, and the height is 73 mm.

[0008] Preferably, a clamping block is provided on the surface of the phase analysis detection device, and one side of the transparent protective cover is snap-connected to the clamping block.

[0009] Preferably, a phase analysis detection module and a relay control module are integrated in the phase analysis detection device.

[0010] Preferably, the phase analysis detection module includes a signal input module, a signal processing module, a phase analysis module, and a display output module. The signal input module is electrically connected to the signal processing module, the signal processing module is electrically connected to the phase analysis module, and the phase analysis module is electrically connected to the display output module.

[0011] Preferably, the signal input module is used to receive the signal to be measured; the signal processing module is used to preprocess the received signal.

[0012] Preferably, the phase analysis module is used to perform phase analysis on the preprocessed signal; the display output module is used to display the phase analysis result.

[0013] Preferably, the phase analysis module includes a microprocessor and a phase detection circuit. The microprocessor obtains the phase information of the three-phase voltage signal based on the phase detection circuit and calculates the phase difference.

[0014] Preferably, the display output module is further used to output a corresponding control signal to the relay control module according to the analysis result of the phase analysis module.

[0015] Preferably, the relay control module controls the phase analysis detection device to perform phase sequence protection and open-circuit protection operations according to the output control signal.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The size of the phase analysis detection device is very small, enabling the entire device to be applicable to environments with limited space, improving the flexibility of use. It has the characteristics of small size, high precision, and strong stability, and can meet the requirements of various miniaturized and high-precision electrical control systems. The signal input module uses a high-performance RF connector to receive the signal to be measured, and the signal to be measured is sent to the signal processing module for processing. The phase analysis module uses a high-precision phase detection circuit to perform phase analysis on the preprocessed signal, and the processed phase information is displayed through the result display module. Through the integrated design, the miniaturization of the device is realized, which is convenient for carrying and on-site application, and improves the accuracy and stability of phase detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the miniaturized phase analysis detection device of the present utility model;

[0019] Figure 2 Isometric schematic diagram of the phase analysis detection device of the present utility model;

[0020] Figure 3 Top view schematic diagram of the phase analysis detection device of the present utility model;

[0021] Figure 4 Module schematic diagram of the phase analysis detection device of the present utility model.

[0022] In the figure: 1. Phase analysis detection device; 11. Power input port; 12. Control signal input port; 13. Transparent protective cover; 14. Indicator light; 15. Adjustment knob; 16. Clamping block; 2. Phase analysis detection module; 3. Relay control module. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] To solve the problem that traditional phase analysis detection devices are often bulky, complex in structure, and cumbersome in operation, which is not conducive to portability and on-site application, please refer to Figures 1-4 , the following technical solutions are provided in this embodiment:

[0025] A miniaturized phase analysis detection device includes a phase analysis detection device 1. The width of the phase analysis detection device 1 is 18 mm, the length is 90 mm, and the height is 73 mm. A power input port 11 and a control signal input port 12 are respectively installed on both sides of the phase analysis detection device 1. The upper surface of the phase analysis detection device 1 is movably connected to a transparent protective cover 13 through a pin shaft. An indicator light 14 and an adjustment knob 15 are respectively arranged on the upper surface of the phase analysis detection device 1. The power input port 11 is electrically connected to an external circuit through a wire, the control signal input port 12 is electrically connected to a three-phase circuit, a clamping block 16 is arranged on the surface of the phase analysis detection device 1, and one side of the transparent protective cover 13 is snap-connected to the clamping block 16;

[0026] In this embodiment, the size of the phase analysis detection device 1 is very small, making the entire device applicable to environments with limited space and improving the flexibility of use. Through the indicator light 14, users can intuitively understand the phase sequence state of the power supply without additional detection tools or steps. The phase analysis detection device 1 has the characteristics of small size, high precision, and strong stability, and can meet the needs of various miniaturized and high-precision electrical control systems.

[0027] In this embodiment, a phase analysis detection module 2 and a relay control module 3 are integrated in the phase analysis detection device 1. The phase analysis detection module 2 includes a signal input module, a signal processing module, a phase analysis module, and a display output module. The signal input module is electrically connected to the signal processing module, the signal processing module is electrically connected to the phase analysis module, and the phase analysis module is electrically connected to the display output module. The signal input module is used to receive a signal to be measured; the signal processing module is used to preprocess the received signal; the phase analysis module is used to perform phase analysis on the preprocessed signal; and the display output module is used to display the phase analysis result.

[0028] In this embodiment, the signal input module uses a high-performance RF connector to receive the signal to be measured. The signal to be measured is sent to the signal processing module for processing, such as filtering, calibration, etc. The phase analysis module uses a high-precision phase detection circuit to perform phase analysis on the preprocessed signal. The processed phase information is displayed through the result display module. Through the integrated design, the miniaturization of the device is achieved, which is convenient for carrying and on-site application, and improves the accuracy and stability of phase detection.

[0029] In this embodiment, the phase analysis module includes a microprocessor and a phase detection circuit. The microprocessor obtains the phase information of the three-phase voltage signal based on the phase detection circuit and calculates the phase difference. The display output module is also used to output a corresponding control signal to the relay control module 3 according to the analysis result of the phase analysis module. The relay control module 3 controls the phase analysis detection device 1 to perform phase sequence protection and open-circuit protection operations according to the output control signal.

[0030] In this embodiment, the phase analysis module further includes judging the phase sequence according to the phase difference. If the phase difference is 120°±w, it is judged as a positive phase sequence; if the phase difference is 240°±w, it is judged as a negative phase sequence; if the phase difference does not meet the above conditions, it is judged as a missing phase or a wrong phase. Here, w is a preset allowable error range. The display output module drives alarm devices such as indicator lights and buzzers to perform audible and visual alarms according to the judgment result, realizing the automatic detection and control of the phase sequence.

[0031] Working principle: The signal input module receives the signal to be measured. The signal to be measured is sent to the signal processing module for processing. The phase analysis module performs phase analysis on the preprocessed signal. The processed phase information is analyzed by the phase analysis module and displayed through the result display module.

[0032] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A miniaturized phase analysis detection device, including a phase analysis detection device (1), characterized in that: On both sides of the phase analysis and detection device (1), a power input port (11) and a control signal input port (12) are respectively installed. The upper surface of the phase analysis and detection device (1) is movably connected to a transparent protective cover (13) through a pin shaft. An indicator light (14) and an adjustment knob (15) are respectively arranged on the upper surface of the phase analysis and detection device (1). The power input port (11) is electrically connected to an external circuit through a wire, and the control signal input port (12) is electrically connected to a three-phase circuit.

2. The miniaturized phase analysis detection device according to claim 1, characterized in that: The phase analysis and detection device (1) has a width of 18 mm, a length of 90 mm, and a height of 73 mm.

3. A miniaturized phase analysis detection device according to claim 2, characterized in that: A clamping block (16) is arranged on the surface of the phase analysis and detection device (1), and one side of the transparent protective cover (13) is snap-connected to the clamping block (16).

4. A miniaturized phase analysis detection device according to claim 3, characterized in that: A phase analysis and detection module (2) and a relay control module (3) are integrated in the phase analysis and detection device (1).

5. A miniaturized phase analysis detection device according to claim 4, characterized in that: The phase analysis and detection module (2) includes a signal input module, a signal processing module, a phase analysis module, and a display output module. The signal input module is electrically connected to the signal processing module, the signal processing module is electrically connected to the phase analysis module, and the phase analysis module is electrically connected to the display output module.

6. The miniaturized phase analysis detection device according to claim 5, characterized in that: The signal input module is used to receive a signal to be measured; the signal processing module is used to preprocess the received signal.

7. The miniaturized phase analysis detection device according to claim 6, wherein: The phase analysis module is used to perform phase analysis on the preprocessed signal; the display output module is used to display the phase analysis result.

8. A miniaturized phase analysis detection device according to claim 7, characterized in that: The phase analysis module includes a microprocessor and a phase detection circuit. The microprocessor obtains the phase information of the three-phase voltage signal based on the phase detection circuit and calculates the phase difference.

9. The miniaturized phase analysis detection device according to claim 8, wherein: The display output module is also used to output a corresponding control signal to the relay control module (3) according to the analysis result of the phase analysis module.

10. A miniaturized phase analysis detection device according to claim 9, characterized in that: The relay control module (3) controls the phase analysis and detection device (1) to perform phase sequence protection and open-circuit protection operations according to the output control signal.

Images