CN220730350U - Miniaturized multichannel voiceprint on-line monitoring device for switch cabinet - Google Patents

Abstract

The utility model discloses a miniaturized multi-channel voiceprint online monitoring device for a switch cabinet, comprising a "concave"-shaped retaining frame and a main shell, wherein the main shell is arranged inside the "concave"-shaped structure of the retaining frame. The miniaturized multi-channel voiceprint online monitoring device for the switch cabinet does not require any modification to the switch cabinet or addition of additional sensors, and thus will not have any impact on the structure and performance of the switch cabinet. The utility model has low cost and high safety, and can collect subtle sound signals generated when the switch cabinet is discharged in real time, and can timely discover abnormal conditions and faults through algorithm analysis and processing, and can help realize the refined management and control of the discharge process of the switch cabinet, and avoid unnecessary energy waste and loss. Therefore, the utility model has the advantages of non-invasiveness, real-time monitoring, high accuracy, high sensitivity, high efficiency and energy saving, automated management, low maintenance cost and high safety.

Description

A miniaturized multi-channel voiceprint online monitoring device for switch cabinets

Technical Field

The utility model relates to the field of switch cabinet equipment, in particular to a miniaturized multi-channel voiceprint online monitoring device for a switch cabinet.

Background technique

The switch cabinet is an electrical equipment. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switch cabinets, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment.

Switchgear is an important equipment in the power system, and its discharge process may be accompanied by dangerous factors such as high temperature, high pressure, and high energy. Therefore, monitoring the discharge process of the switchgear is an important means to ensure the safety of personnel and equipment. Problems that may arise during the discharge process of the switchgear, such as arcing, short circuits, overcurrent, etc., may cause damage to the equipment or even cause accidents. By monitoring the discharge process of the switchgear, these problems can be discovered and solved in a timely manner to ensure the stable operation of the equipment. At the same time, by monitoring and analyzing the parameters during the discharge process, the operating status and health of the equipment can be understood, potential fault hazards can be discovered in a timely manner, and corresponding measures can be taken to prevent them.

Currently, the commonly used switch cabinet monitoring methods mainly include the monitoring of parameters such as temperature, current, and voltage. For example, the Chinese patent with application number: CN202310219337.0 has the following specific contents: a comprehensive online monitoring device and method for a switch cabinet, including a comprehensive data collector, a temperature monitoring module, a circuit breaker electrical characteristics sensor, a circuit breaker stroke sensor, and a three-station electrical characteristics sensor. The comprehensive data collector is used for data collection and processing, storage, and transmission functions; the temperature monitoring module includes a temperature acquisition antenna and a temperature sensor; the circuit breaker electrical characteristics sensor is used to sense the current during the circuit breaker opening and closing actions; the circuit breaker stroke sensor is used to monitor the stroke during the circuit breaker opening and closing process; the three-station electrical characteristics sensor is used to sense the motor current during the three-station action. The above patent is a classic switch cabinet monitoring device, which adopts the traditional method of using detection current to monitor the working status of the switch cabinet. However, these monitoring methods may not be able to accurately reflect the operating status of the equipment under some special circumstances, such as being unable to monitor the arc in real time. The monitoring methods need to be further improved to improve the accuracy and reliability of monitoring. At the same time, the existing switch cabinet monitoring methods still have complex data processing and analysis problems. Monitoring the discharge process of the switch cabinet will generate a large amount of data. How to effectively process and analyze this data is a challenge. At present, there is still a lack of a complete set of data processing and analysis methods, and further research and development of related technologies are needed. Finally, there is the cost issue of the monitoring system. Establishing a complete monitoring system requires a lot of manpower, material and financial resources. For some small and medium-sized enterprises or individual users, it is difficult to bear such a high cost, which limits the promotion and application of the monitoring system.

Utility Model Content

The purpose of the utility model is to provide a miniaturized multi-channel voiceprint online monitoring device for a switch cabinet, so as to solve the problems of limited monitoring means, complex data processing and analysis, and high monitoring system cost in the existing switch cabinet detection equipment mentioned in the above background technology.

The technical solution of the utility model is achieved as follows: a miniaturized multi-channel voiceprint online monitoring device for a switch cabinet, comprising a "concave"-shaped retaining frame and a main shell, the main shell is arranged inside the "concave"-shaped structure of the retaining frame, the main shell and the retaining frame are connected together through a main shell cover, three positioning columns are arranged inside the main shell, one end of the positioning column abuts on the main shell cover, and the other end of the positioning column abuts on a PCB board electrically connected to an external audio analysis device, and a waterproof and sound-permeable membrane is arranged between the PCB board and the main shell.

Preferably, the retaining frame comprises a protective frame, and ear guards are bent and extended on both sides of the protective frame, and permanent magnets are nested inside the ear guards.

Preferably, the positioning column comprises a heightening column which abuts against the PCB board, a gasket is arranged between the heightening column and the copper column, and a screw is arranged at the other end of the copper column.

Preferably, the raising column is made of nylon material.

Preferably, the screw is fixedly screwed together with the main shell cover, the screw is fixedly screwed together with the retaining frame, and the main shell body is detachably snap-connected with the main shell cover.

By adopting the above technical solution, the beneficial effects of the utility model are as follows:

1. Non-invasive monitoring: Voiceprint monitoring does not require any changes to the switch cabinet or the addition of additional sensors. It only needs to collect sound through microphones and other devices, and is also installed through magnetic suction, so it will not have any impact on the structure and performance of the switch cabinet.

2. Real-time monitoring: Voiceprint monitoring can collect the sound signals generated by the switch cabinet during discharge in real time, and through algorithm analysis and processing, it can detect abnormal conditions and faults in time.

3. High accuracy: Voiceprint monitoring technology can accurately determine the discharge situation and fault type by analyzing the spectrum, amplitude, time domain and other characteristics of the discharge sound, thereby improving the accuracy of fault diagnosis.

4. High sensitivity: Voiceprint monitoring can capture tiny sound changes and can effectively monitor and diagnose some weak discharge signals.

5. High efficiency and energy saving: Voiceprint monitoring can help achieve refined management and control of the discharge process of the switch cabinet, avoiding unnecessary energy waste and loss.

6. Automated management: Voiceprint monitoring technology can be combined with intelligent management systems to achieve automated monitoring and management of the switch cabinet discharge process, reduce manual intervention and improve work efficiency.

7. Low maintenance cost: Voiceprint monitoring technology does not require additional sensors and equipment, and does not require frequent maintenance and replacement, which reduces maintenance costs and workload.

8. High safety: Voiceprint monitoring can be performed without contacting high-voltage power supply, reducing the risk of personnel being exposed to high-voltage electricity and improving work safety.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

Figure 1 is a front view of the utility model;

FIG2 is a view of the internal structure of the present invention;

FIG3 is an enlarged view of the A area of FIG2 ;

FIG. 4 is a cross-sectional view of the retainer of the present invention.

Among them: 1. retaining frame; 2. main shell; 3. heightening column; 4. gasket; 5. PCB board; 6. copper column; 7. main shell cover; 8. screw; 9. waterproof and sound-permeable membrane; 10. positioning column; 101. protection frame; 102. earmuffs; 103. permanent magnet.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Referring to Figures 1 to 4, a miniaturized multi-channel voiceprint online monitoring device for a switch cabinet includes a "concave"-shaped retaining frame 1 and a main shell 2. The main shell 2 is arranged inside the "concave" structure of the retaining frame 1. The main shell 2 and the retaining frame 1 are connected together through a main shell cover 7. Three positioning columns 10 are arranged inside the main shell 2. One end of the positioning column 10 abuts against the main shell cover 7, and the other end of the positioning column 10 abuts against a PCB board 5 electrically connected to an external audio analysis device. A waterproof and sound-permeable membrane 9 is arranged between the PCB board 5 and the main shell 2.

Specifically, the retaining frame 1 includes a protective frame 101, and the two sides of the protective frame 101 are bent and extended to provide ear guards 102, and the permanent magnets 103 are nested inside the ear guards 102. This arrangement is convenient for using the permanent magnets 103 to fix the retaining frame 1 on the switch cabinet shell when the switch cabinet shell is a magnetizable material, so that the device can be fixed to the outside of the switch cabinet without damaging the switch cabinet shell, which is convenient for collecting audio information inside the switch cabinet.

Specifically, the positioning column 10 includes a heightening column 3 that contacts the PCB board 5, a gasket 4 is arranged between the heightening column 3 and the copper column 6, and a screw 8 is arranged at the other end of the copper column 6. This arrangement makes it easy to use the positioning column 10 to provide a contact positioning function for the PCB board 5, thereby preventing the PCB board 5 from shaking during operation and causing distortion of the collected audio information, thereby improving the accuracy of the device.

Specifically, the heightening column 3 is made of nylon material, which has the advantages of good insulation performance and good elasticity. It can provide elastic clamping for the PCB board 5 to avoid damage to the PCB board 5 caused by direct contact clamping, while maintaining the stability of the PCB board 5.

Specifically, the screw 8 is fixedly screwed together with the main shell cover 7, the screw 8 is fixedly screwed together with the retaining frame 1, and the main shell 2 is detachably snap-connected to the main shell cover 7. This arrangement makes it easy to use the screw 8 to fix the main shell cover 7 and the retaining frame 1 together. At the same time, the design of the detachable snap-connection between the main shell 2 and the main shell cover 7 facilitates the installation and debugging of the device.

Working principle: First, the PCB board 5 is electrically connected to the external audio analysis device, and the waterproof sound-permeable membrane 9 is attached to the main shell 2. Then, the PCB board 5 is fixed to the inner wall of the main shell 2 by the positioning column 10 to maintain the stability of the PCB board 5 and the waterproof sound-permeable membrane 9. According to actual needs, a retaining frame 1 with required performance and parameters is selected, and the retaining frame 1 and the main shell 2 are fixed together by the positioning column 10 to maintain the stability of the structure of the device. The side of the device close to the PCB board 5 is fixed to the switch cabinet shell by the retaining frame 1. After the audio information inside the switch cabinet passes through the waterproof sound-permeable membrane 9, it is collected by the PCB board 5 and fed back to the external audio analysis device by the PCB board 5. The external audio analysis device is used to analyze the spectrum, amplitude, time domain and other characteristics of the discharge sound, which can accurately determine the discharge situation and fault type, improve the accuracy of fault diagnosis, and when a fault occurs in the switch cabinet, an alarm is issued in time to prompt the staff to check and repair the switch cabinet.

In the description of this specification, the terms "connect", "install", "fix", "set", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. As in this case, for ordinary technicians in the field, the specific meanings of the above terms in the utility model or the utility model can be understood according to the specific circumstances. In the utility model, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, the utility model usually takes one/a pair of components as an example, but it should be understood by those skilled in the art that such positions, matching relationships, etc. are also applicable to other components/other paired components.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. Miniaturized multichannel voiceprint on-line monitoring device for cubical switchboard, its characterized in that: including being "concave" form holder (1) and main casing (2), main casing (2) set up in the inside of "concave" form structure of holder (1), main casing (2) with link together through main cap (7) between holder (1), main casing (2) inside is provided with three reference column (10), the one end of reference column (10) is contradicted on main cap (7), the other end of reference column (10) is contradicted on PCB board (5) be connected with outside audio analysis equipment electricity, PCB board (5) with be provided with waterproof sound-transmitting membrane (9) between main casing (2).

2. The miniaturized multichannel voiceprint on-line monitoring device for a switch cabinet according to claim 1, wherein: the retainer (1) comprises a protection frame (101), two sides of the protection frame (101) are bent and extended to be provided with lugs (102), and permanent magnets (103) are nested inside the lugs (102).

3. The miniaturized multichannel voiceprint on-line monitoring device for a switch cabinet according to claim 1, wherein: the positioning column (10) comprises a heightening column (3) which is abutted against the PCB (5), a gasket (4) is arranged between the heightening column (3) and the copper column (6), and a screw (8) is arranged at the other end of the copper column (6).

4. A miniaturized multichannel voiceprint on-line monitoring device for a switchgear as claimed in claim 3, wherein: the elevating column (3) is made of nylon material.

5. A miniaturized multichannel voiceprint on-line monitoring device for a switchgear as claimed in claim 3, wherein: the screw (8) and the main shell cover (7) are fixedly screwed together, the screw (8) and the retainer (1) are fixedly screwed together, and the main shell (2) is detachably connected with the main shell cover (7) in a clamping mode.