Direct-current power supply cabinet based on leakage current detection sensor

Abstract

The utility model relates to the technical field of direct-current power supply cabinets, and discloses a direct-current power supply cabinet based on a leakage current detection sensor, which comprises a power supply cabinet body, and a direct-current power supply module, an electric leakage detection module and an alarm module are arranged on the inner side of the power supply cabinet body. The direct-current power supply module comprises a direct-current transformer, one end of the direct-current transformer is provided with a direct-current voltage stabilization source, the direct-current power supply cabinet based on the leakage current detection sensor inputs an alternating-current electric signal into the direct-current transformer, and the direct-current transformer is responsible for converting the input alternating-current electric signal into a direct-current electric signal; through accurate control and adjustment, it is ensured that the output direct current meets the working requirements of subsequent equipment, then a direct current signal is output to the direct current voltage stabilization source, the direct current voltage stabilization source further stabilizes the direct current output from the direct current transformer, and it is ensured that stability is provided for rear-end equipment; therefore, the operation of converting the alternating current into the direct current for stable processing is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current power supply cabinets, in particular to a direct current power supply cabinet based on a leakage current detection sensor. Background Art

[0002] DC power supply cabinets are used in large, medium and small power plants and substations as DC power supplies for high-voltage switchgear, relay protection, automatic control, emergency lighting, lighting and sound signals under normal operation and accident conditions. They can also be used for DC power supplies required by metallurgy, railways, mining, petrochemicals, postal and telecommunications high-rise buildings and computer networks.

[0003] Existing DC power supply cabinets usually use inductive or transformer voltage regulation, but these traditional voltage regulation methods have problems such as difficult debugging, narrow adjustment range, and inflexible adjustment. At the same time, if leakage occurs during equipment operation, it will cause equipment damage and safety accidents. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a DC power supply cabinet based on a leakage current detection sensor, so as to solve the problem mentioned in the above background technology that the existing DC power supply cabinet usually adopts an inductive or transformer voltage regulation type, but these traditional voltage regulation methods have the problems of difficult debugging, narrow adjustment range, and inflexible adjustment. At the same time, if leakage occurs during equipment operation, it will cause equipment damage and safety accidents.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a DC power supply cabinet based on a leakage current detection sensor, comprising a power supply cabinet body, wherein a DC power supply module, a leakage detection module and an alarm module are arranged inside the power supply cabinet body;

[0006] The DC power supply module includes a DC transformer, one end of which is equipped with a DC voltage stabilization source;

[0007] Through the above technical solution, at this time, the AC signal is input into the DC transformer, and the DC transformer is responsible for converting the input AC signal into a DC signal. Through precise control and adjustment, it is ensured that the output DC meets the working requirements of subsequent equipment, and then the DC signal is output to the DC voltage stabilizing source. The DC voltage stabilizing source further stabilizes the DC output from the DC transformer. It can effectively filter out voltage fluctuations and noise, ensure stability for the back-end equipment, thereby completing the operation of converting AC into DC for stable processing, achieving the effect of convenient voltage regulation and improved safety.

[0008] The leakage detection module includes a leakage detection sensor, one end of the leakage detection sensor is provided with a control system, and one end of the control system is provided with an automatic circuit breaker;

[0009] Through the above scheme, at this time, by setting the leakage detection sensor in the main circuit of the power cabinet body, the DC transformer and the DC voltage regulator, the leakage detection sensor is used to continuously monitor whether there is leakage in the circuit. When leakage occurs, the leakage detection sensor will send a signal to the control system. The signal receiving module in the control system receives the signal from the leakage detection sensor. The leakage detection sensor will monitor the leakage in the circuit in real time and convert the relevant information into an electrical signal or a digital signal and transmit it to the control system. Then the signal processing module receives the signal from the signal receiving module to extract key information about the leakage. Then the judgment module judges the leakage according to the information provided by the signal processing module, determines whether there is leakage or whether the leakage exceeds the preset safety threshold, and then the execution module executes the operation of whether to cut off the power supply according to the judgment of the judgment module. When leakage is detected, the automatic circuit breaker is connected with the automatic circuit breaker through the execution module. The circuit breaker immediately disconnects the power supply to ensure the safety of equipment and personnel.

[0010] The alarm module includes an audible and visual alarm, one end of which is provided with a wireless signal transmitter;

[0011] Through the above technical solution, after the leakage detection sensor detects the leakage, the signal is transmitted to the control system, and the sound and light alarm is controlled by the control system to make the sound and light alarm sound an alarm. Then the wireless signal transmitter sends the alarm information to the remote monitoring center, realizing real-time monitoring and early warning, reminding the staff, and facilitating the staff to carry out quick maintenance.

[0012] Preferably, the DC transformer and the DC voltage stabilizing source are both installed on the inner side of the power cabinet body, and a shock-absorbing pad is installed on the bottom of the DC transformer.

[0013] Preferably, a plurality of leakage detection sensors are provided, and the plurality of leakage detection sensors are respectively installed on the power supply cabinet body, the DC transformer and the output end of the DC voltage stabilizing source.

[0014] Preferably, the control system comprises a signal receiving module, a signal processing module, a judgment module and an execution module, and the signal receiving module, the signal processing module, the judgment module and the execution module are all arranged on the inner side of the power cabinet body.

[0015] Preferably, the signal receiving module receives the signal from the leakage detection sensor, and the signal processing module judges the signal from the leakage detection sensor.

[0016] Preferably, the judgment module judges the signal, and the execution module performs an execution operation on the judged signal.

[0017] Preferably, a groove is provided on the front side of the power cabinet body, and a display screen is installed inside the groove.

[0018] Preferably, the automatic circuit breaker is installed on the inner side of the power cabinet body, and one end of the automatic circuit breaker is electrically connected to one end of the execution module.

[0019] Preferably, the sound and light alarm is installed on the top of the power cabinet body, and the wireless signal transmitter is installed outside the power cabinet body.

[0020] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0021] First, the utility model inputs an AC signal into a DC transformer, which is responsible for converting the input AC signal into a DC signal. Through precise control and regulation, it ensures that the output DC meets the working requirements of subsequent equipment, and then outputs the DC signal to a DC voltage-stabilizing source. The DC voltage-stabilizing source further stabilizes the DC output from the DC transformer, and can effectively filter out voltage fluctuations and noise, ensuring stability for back-end equipment, thereby completing the operation of converting AC into DC for stable processing, achieving the effect of convenient voltage regulation and improved safety.

[0022] Second, the utility model sets the leakage detection sensor in the main circuit of the power cabinet body, the DC transformer and the DC voltage regulator, and then continuously monitors whether there is leakage in the circuit through the leakage detection sensor. When leakage occurs, the leakage detection sensor will send a signal to the control system. The signal receiving module in the control system receives the signal from the leakage detection sensor. The leakage detection sensor will monitor the leakage in the circuit in real time and convert the relevant information into an electrical signal or a digital signal, and transmit it to the control system. Then the signal processing module receives the signal from the signal receiving module to extract key information about the leakage. Then the judgment module judges the leakage according to the information provided by the signal processing module, determines whether there is leakage or whether the leakage exceeds the preset safety threshold, and then the execution module executes the operation of whether to cut off the power supply according to the judgment of the judgment module. When leakage is detected, the automatic circuit breaker is connected with the automatic circuit breaker through the execution module. The power supply is immediately disconnected to ensure the safety of equipment and personnel.

[0023] Third, after the leakage detection sensor detects the leakage, the utility model transmits the signal to the control system, and controls the sound and light alarm through the control system, so that the sound and light alarm sounds an alarm, and then the wireless signal transmitter sends the alarm information to the remote monitoring center, so as to realize real-time monitoring and early warning, remind the staff, and facilitate the staff to carry out rapid maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall stereogram of the utility model;

[0025] Figure 2 This is a flow chart of the DC power supply module of the utility model;

[0026] Figure 3 This is a flow chart of the leakage detection module of the utility model;

[0027] Figure 4 This is a flow chart of the control system of the utility model.

[0028] Among them: 1. Power cabinet body; 2. DC power module; 3. Leakage detection module; 4. Alarm module; 11. Display screen; 21. DC transformer; 22. DC voltage regulator; 31. Leakage detection sensor; 32. Control system; 33. Automatic circuit breaker; 41. Sound and light alarm; 42. Wireless signal transmitter. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings. Specific implementation method 1

[0031] The following is a specific implementation of a DC power supply cabinet based on a leakage current detection sensor.

[0032] See also Figure 1-4 A DC power supply cabinet based on a leakage current detection sensor comprises a power supply cabinet body 1, a DC power supply module 2, a leakage detection module 3 and an alarm module 4 are arranged inside the power supply cabinet body 1;

[0033] The DC power supply module 2 includes a DC transformer 21, and a DC voltage regulator 22 is installed at one end of the DC transformer 21;

[0034] Through the above technical solution, at this time, the AC signal is input into the DC transformer 21, and the DC transformer 21 is responsible for converting the input AC signal into a DC signal. Through precise control and adjustment, it is ensured that the output DC meets the working requirements of subsequent equipment, and then the DC signal is output to the DC voltage stabilizing source 22. The DC voltage stabilizing source 22 further stabilizes the DC output from the DC transformer 21. It can effectively filter out voltage fluctuations and noise, ensure stability for the back-end equipment, thereby completing the operation of converting AC into DC for stable processing, achieving the effect of convenient voltage regulation and improved safety.

[0035] The leakage detection module 3 includes a leakage detection sensor 31, one end of the leakage detection sensor 31 is provided with a control system 32, and one end of the control system 32 is provided with an automatic circuit breaker 33;

[0036] Through the above scheme, at this time, by setting the leakage detection sensor 31 in the main circuit of the power cabinet body 1, the DC transformer 21 and the DC voltage regulator 22, the leakage detection sensor 31 is used to continuously monitor whether there is leakage in the circuit. When leakage occurs, the leakage detection sensor 31 will send a signal to the control system 32. The signal receiving module in the control system 32 receives the signal from the leakage detection sensor 31. The leakage detection sensor 31 will monitor the leakage in the circuit in real time and convert the relevant information into an electrical signal or a digital signal, and transmit it to the control system 32. Then the signal processing module receives the signal from the signal receiving module to extract key information about the leakage. Then the judgment module judges the leakage according to the information provided by the signal processing module, determines whether there is leakage or whether the leakage exceeds the preset safety threshold, and then the execution module executes the operation of whether to cut off the power supply according to the judgment of the judgment module. When leakage is detected, the automatic circuit breaker 33 is connected with the execution module to immediately disconnect the power supply to ensure the safety of equipment and personnel.

[0037] The alarm module 4 includes an audible and visual alarm 41 , and a wireless signal transmitter 42 is disposed at one end of the audible and visual alarm 41 .

[0038] Through the above technical solution, after the leakage detection sensor 31 detects the leakage, the signal is transmitted to the control system 32, and the control system 32 controls the sound and light alarm 41, so that the sound and light alarm 41 sounds an alarm, and then the wireless signal transmitter 42 sends the alarm information to the remote monitoring center, so as to realize real-time monitoring and early warning, remind the staff, and facilitate the staff to carry out quick maintenance.

[0039] Specifically, the DC transformer 21 and the DC voltage stabilizing source 22 are both installed on the inner side of the power cabinet body 1 , and a shock-absorbing pad is installed at the bottom of the DC transformer 21 .

[0040] Through the above technical solution, the DC transformer 21 is damped by the damping pad, the vibration of the DC transformer 21 is reduced, and the stability of the DC transformer 21 is improved.

[0041] Specifically, a plurality of leakage detection sensors 31 are provided, and the plurality of leakage detection sensors 31 are respectively installed at the output ends of the power cabinet body 1 , the DC transformer 21 and the DC voltage stabilizing source 22 .

[0042] Through the above technical solution, the leakage detection sensor 31 can perform leakage detection on each electrical circuit, thereby improving the comprehensiveness of the detection.

[0043] Specifically, the control system 32 includes a signal receiving module, a signal processing module, a judgment module and an execution module, and the signal receiving module, the signal processing module, the judgment module and the execution module are all arranged on the inner side of the power cabinet body 1 .

[0044] Through the above technical solution, the signal of the leakage detection sensor 31 can be accurately processed and judged through various modules.

[0045] Specifically, the signal receiving module receives the signal from the leakage detection sensor 31 , and the signal processing module judges the signal from the leakage detection sensor 31 .

[0046] Through the above technical solution, the signal receiving module and the signal processing module cooperate to quickly receive and process the signal transmitted by the leakage detection sensor 31.

[0047] Specifically, the judgment module judges the signal, and the execution module performs an execution operation on the judged signal.

[0048] Through the above technical solution, the judgment module and the execution module can disconnect the power supply to protect the equipment and staff.

[0049] Specifically, a groove is provided on the front of the power cabinet body 1, and a display screen 11 is installed inside the groove.

[0050] Through the above technical solution, the display screen 11 can be installed in the groove, and the data of the leakage detection sensor 31 can be displayed through the display screen 11.

[0051] Specifically, the automatic circuit breaker 33 is installed on the inner side of the power cabinet body 1 , and one end of the automatic circuit breaker 33 is electrically connected to one end of the execution module.

[0052] Through the above technical solution, the execution module can control the automatic circuit breaker 33, thereby automatically disconnecting the power supply of the DC power supply cabinet.

[0053] Specifically, the sound and light alarm 41 is installed on the top of the power cabinet body 1 , and the wireless signal transmitter 42 is installed outside the power cabinet body 1 .

[0054] Through the above technical solution, the sound and light alarm 41 can sound an alarm, and the wireless signal transmitter 42 can send the alarm information to the remote monitoring center.

[0055] When in use, the AC signal is input into the DC transformer 21, and the DC transformer 21 is responsible for converting the input AC signal into a DC signal. Through precise control and regulation, it is ensured that the output DC meets the working requirements of subsequent equipment, and then the DC signal is output to the DC voltage stabilizing source 22. The DC voltage stabilizing source 22 further stabilizes the DC output from the DC transformer 21. It can effectively filter out voltage fluctuations and noise, ensure stability for the back-end equipment, and thus complete the operation of converting AC into DC for stable processing, achieving the effect of convenient voltage regulation and improved safety. Specific implementation method 2

[0057] The following is a specific implementation of a DC power supply module of a DC power supply cabinet based on a leakage current detection sensor.

[0058] A DC power supply module 2 of a DC power supply cabinet based on a leakage current detection sensor in this embodiment includes a DC transformer 21, and a DC voltage regulator 22 is installed at one end of the DC transformer 21;

[0059] Through the above technical solution, at this time, the AC signal is input into the DC transformer 21, and the DC transformer 21 is responsible for converting the input AC signal into a DC signal. Through precise control and adjustment, it is ensured that the output DC meets the working requirements of subsequent equipment, and then the DC signal is output to the DC voltage stabilizing source 22. The DC voltage stabilizing source 22 further stabilizes the DC output from the DC transformer 21. It can effectively filter out voltage fluctuations and noise, ensure stability for the back-end equipment, thereby completing the operation of converting AC into DC for temperature processing, achieving the effect of facilitating voltage regulation and improving safety. Specific implementation method three

[0061] The following is a specific implementation of a leakage detection module of a DC power supply cabinet based on a leakage current detection sensor.

[0062] A leakage detection module 3 of a DC power supply cabinet based on a leakage current detection sensor in this embodiment includes a leakage detection sensor 31, a control system 32 is provided at one end of the leakage detection sensor 31, and an automatic circuit breaker 33 is provided at one end of the control system 32;

[0063] Through the above scheme, at this time, by setting the leakage detection sensor 31 in the main circuit of the power cabinet body 1, the DC transformer 21 and the DC voltage regulator 22, the leakage detection sensor 31 is used to continuously monitor whether there is leakage in the circuit. When leakage occurs, the leakage detection sensor 31 will send a signal to the control system 32. The signal receiving module in the control system 32 receives the signal from the leakage detection sensor 31. The leakage detection sensor 31 will monitor the leakage in the circuit in real time and convert the relevant information into an electrical signal or a digital signal, and transmit it to the control system 32. Then the signal processing module receives the signal from the signal receiving module to extract key information about the leakage. Then the judgment module judges the leakage according to the information provided by the signal processing module, determines whether there is leakage or whether the leakage exceeds the preset safety threshold, and then the execution module executes the operation of whether to cut off the power supply according to the judgment of the judgment module. When leakage is detected, the automatic circuit breaker 33 is connected with the execution module to immediately disconnect the power supply to ensure the safety of equipment and personnel. Specific implementation method four

[0065] The following is an implementation method of an alarm mold body of a DC power supply cabinet based on a leakage current detection sensor.

[0066] An alarm module 4 of a DC power supply cabinet based on a leakage current detection sensor in this embodiment includes an audible and visual alarm 41, and a wireless signal transmitter 42 is provided at one end of the audible and visual alarm 41;

[0067] Through the above technical solution, after the leakage detection sensor 31 detects the leakage, the signal is transmitted to the control system 32, and the control system 32 controls the sound and light alarm 41, so that the sound and light alarm 41 sounds an alarm, and then the wireless signal transmitter 42 sends the alarm information to the remote monitoring center, so as to realize real-time monitoring and early warning, remind the staff, and facilitate the staff to carry out quick maintenance.

[0068] Although specific 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 variations may be made to these specific embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC power supply cabinet based on a leakage current detection sensor, comprising a power supply cabinet body (1), characterized in that: A DC power supply module (2), a leakage detection module (3) and an alarm module (4) are arranged on the inner side of the power cabinet body (1); The DC power supply module (2) comprises a DC transformer (21), and a DC voltage stabilization source (22) is installed at one end of the DC transformer (21); The leakage detection module (3) comprises a leakage detection sensor (31), one end of the leakage detection sensor (31) is provided with a control system (32), and one end of the control system (32) is provided with an automatic circuit breaker (33); The alarm module (4) comprises an audible and visual alarm (41), and a wireless signal transmitter (42) is provided at one end of the audible and visual alarm (41).

2. A DC power supply cabinet based on a leakage current detection sensor according to claim 1, characterized in that: The DC transformer (21) and the DC voltage stabilizing source (22) are both installed on the inner side of the power cabinet body (1), and a shock absorbing pad is installed at the bottom of the DC transformer (21).

3. A DC power supply cabinet based on a leakage current detection sensor according to claim 1, characterized in that: A plurality of leakage detection sensors (31) are provided, and the plurality of leakage detection sensors (31) are respectively installed at the output ends of the power cabinet body (1), the DC transformer (21) and the DC voltage stabilizing source (22).

4. A DC power supply cabinet based on a leakage current detection sensor according to claim 1, characterized in that: The control system (32) comprises a signal receiving module, a signal processing module, a judgment module and an execution module, and the signal receiving module, the signal processing module, the judgment module and the execution module are all arranged on the inner side of the power cabinet body (1).

5. A DC power supply cabinet based on a leakage current detection sensor according to claim 4, characterized in that: The signal receiving module receives a signal from the leakage detection sensor (31), and the signal processing module judges the signal from the leakage detection sensor (31).

6. A DC power supply cabinet based on a leakage current detection sensor according to claim 4, characterized in that: The judging module judges the signal, and the executing module performs an execution operation on the judged signal.

7. A DC power supply cabinet based on a leakage current detection sensor according to claim 1, characterized in that: A groove is provided on the front of the power cabinet body (1), and a display screen (11) is installed inside the groove.

8. The DC power supply cabinet based on leakage current detection sensor according to claim 1, characterized in that: The automatic circuit breaker (33) is installed on the inner side of the power cabinet body (1), and one end of the automatic circuit breaker (33) is electrically connected to one end of the execution module.

9. A DC power supply cabinet based on a leakage current detection sensor according to claim 1, characterized in that: The sound and light alarm (41) is installed on the top of the power cabinet body (1), and the wireless signal transmitter (42) is installed outside the power cabinet body (1).

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