An intelligent low-voltage switch cabinet

Abstract

The utility model relates to the technical field of electrical cabinets, and specifically discloses an intelligent low-voltage switch cabinet, including a cabinet body, on which a circuit breaker, an intelligent monitoring module, a monitoring communication module, a primary connector and a conductive copper busbar are arranged, the intelligent monitoring module is connected to the outlet of the circuit breaker, the intelligent monitoring module is built with a current transformer and a temperature sensor, the circuit breaker is connected to an electric operating mechanism through an output relay, and the monitoring communication module is electrically connected to the intelligent monitoring module, the primary connector and the conductive copper busbar respectively. The utility model can monitor the current, voltage, power, frequency, position status of the circuit breaker, and temperature of the conductive copper busbar in real time in the circuit, and can also realize remote control of opening and closing according to requirements. The monitored data can be transmitted to the control room background in real time, and the circuit breaker can also be opened and closed through the control room to meet the intelligent needs of the modern market, and can solve various common safety hazards at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinets, in particular to an intelligent low-voltage switch cabinet. Background Art

[0002] With the development of social economy, social production and life are more inseparable from a stable power system, especially industrial production is even more inseparable from electricity, and the power consumption is very large. The larger the load, the higher the possibility of various faults. In the power system, some power parameters will be abnormal at the beginning of various faults. If these abnormalities can be found at the beginning of the abnormal power, the expansion of the fault can be well avoided. Therefore, it is very necessary to monitor various power parameters during the power consumption process, so that various hidden faults can be discovered earlier. At present, the low-voltage switchgear in the power room on the market is mainly based on drawer-type switch cabinets. The outgoing circuit breaker in the drawer switch cabinet usually has two-stage protection. The detection of various electrical quantities is through traditional mutual inductors and instruments, and only basic electrical quantities such as current and voltage can be detected. It is necessary to go to the site to read it, which does not play an effective detection role at all. Therefore, the applicant decided to develop an intelligent low-voltage switch cabinet after research. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, an intelligent low-voltage switch cabinet is provided, which can monitor the current, voltage, power, frequency, position status of the circuit breaker, and temperature of the conductive copper busbar in the circuit in real time, and can also realize remote control of opening and closing of the switch as required. The monitored data can be transmitted to the control room background in real time, and the circuit breaker can also be opened and closed through the control room to meet the intelligent needs of the modern market and solve various common safety hazards.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] An intelligent low-voltage switch cabinet comprises a cabinet body, on which a circuit breaker, an intelligent monitoring module, a monitoring communication module, a primary connector and a conductive copper busbar are arranged, the intelligent monitoring module is connected to the outlet terminal of the circuit breaker, the intelligent monitoring module has a built-in current transformer and a temperature sensor, the circuit breaker is connected to an electric operating mechanism via an output relay, and the monitoring communication module is electrically connected to the intelligent monitoring module, the primary connector and the conductive copper busbar respectively.

[0006] Preferably, the intelligent monitoring module monitors the current, voltage, temperature of the conductive copper busbar connection and the position status of the circuit breaker in the loop, and communicates with the monitoring communication module through a 485 communication line. The monitoring communication module displays each collected monitoring quantity through a liquid crystal display.

[0007] Preferably, the intelligent monitoring module collects the temperature at the plug-in point of the primary connector and connects to the monitoring communication module through an 8-core wire interface and a 485 interface. The monitoring communication module is then connected to the control room backend through a switch.

[0008] Preferably, the control room background controls the action of the output relay to control the electric operating mechanism to perform opening and closing operations.

[0009] Preferably, the electric operating mechanism comprises a fuse, a closing motor, an opening motor and a closing indicator light, and the closing motor, the opening motor and the closing indicator light are all electrically connected to the fuse.

[0010] Preferably, the monitoring communication module includes a main control circuit, an electrical parameter acquisition circuit, a communication module, a display circuit, an I / O circuit and a temperature acquisition circuit, and the electrical parameter acquisition circuit, the communication module, the display circuit, the I / O circuit and the temperature acquisition circuit are all electrically connected to the main control circuit.

[0011] By adopting the above technical scheme, the utility model provides an intelligent low-voltage switch cabinet, which has the following beneficial effects: the intelligent monitoring module in the fully insulated cable demarcation switch cabinet structure is connected to the outlet end of the circuit breaker, the intelligent monitoring module has built-in current transformer and temperature sensor, the circuit breaker is connected to the electric operating mechanism through the output relay, the monitoring communication module is electrically connected to the intelligent monitoring module, the primary connector and the conductive copper busbar respectively, and the intelligent monitoring module is set to collect the current, voltage, frequency, power and active and reactive power of the circuit, the temperature of the copper busbar at the connection and the position status of the circuit breaker, so as to realize real-time monitoring of various electrical and non-electrical parameter changes of each circuit, and the safety hazards in each circuit can be discovered as early as possible; the monitoring communication module collects the data collected by the intelligent monitoring module through 485 communication, and can display the data through the LCD display The display screen will display the collected data, and the various collected parameters can be clearly and accurately viewed on site; the temperature of the drawer connection is collected through a primary connector, and the temperature of the primary connector is collected in real time, so the temperature of the primary connection can be monitored and viewed in real time, effectively avoiding overheating failures at this weak contact link; the monitoring communication module can be directly connected to the control room background, or connected to the nearest industrial control switch, and then connected to the control room background through the switch, which is convenient for background monitoring, so that the power room can be easily unattended; the action of the output relay is controlled by the control room background to control the electric operating mechanism of the circuit breaker to perform opening and closing operations, which can achieve the purpose of remote control and can easily realize the opening and closing operations of the circuit breaker in the control room without leaving the house, greatly improving the work efficiency of the on-duty personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 This is the working principle diagram of the utility model;

[0015] Figure 4 It is the circuit principle diagram of the electric operating mechanism in the utility model;

[0016] Figure 5 This is the secondary wiring schematic diagram of the monitoring communication module in the utility model;

[0017] Figure 6 This is a logic schematic diagram of the monitoring communication module in the utility model;

[0018] Figure 7 This is a circuit schematic diagram of the monitoring communication module in the utility model;

[0019] Figure 8 This is a temperature monitoring principle diagram of a primary connector in the utility model;

[0020] In the figure, 1-cabinet, 2-circuit breaker, 3-intelligent monitoring module, 4-monitoring communication module, 5-primary connector, 6-conductive copper busbar, 7-electric operating mechanism, 8-control room backstage. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] like Figure 1-8 As shown, the intelligent low-voltage switch cabinet includes a cabinet 1, on which a circuit breaker 2, an intelligent monitoring module 3, a monitoring communication module 4, a primary connector 5 and a conductive copper bus 6 are arranged. The intelligent monitoring module 3 is connected to the outlet of the circuit breaker 2. The intelligent monitoring module 3 has a built-in current transformer and a temperature sensor. The circuit breaker 3 is connected to an electric operating mechanism 7 through an output relay. The monitoring communication module 4 is electrically connected to the intelligent monitoring module 3, the primary connector 5 and the conductive copper bus 6. It can be understood that the utility model can monitor the current, voltage, power, frequency, position status of the circuit breaker, and temperature of the conductive copper bus in real time in the circuit, and can also realize remote control of opening and closing according to requirements. The monitored data can be transmitted to the control room background in real time, and the circuit breaker can also be opened and closed through the control room to meet the intelligent needs of the modern market and solve various common safety hazards.

[0025] Specifically, the intelligent monitoring module 3 monitors the current, voltage, temperature of the conductive copper busbar connection and the position status of the circuit breaker in the loop, and communicates with the monitoring communication module 4 through a 485 communication line. The monitoring communication module 4 displays each collected monitoring quantity through a liquid crystal display screen; the intelligent monitoring module 3 collects the temperature of the primary connector 5 at the connection point, and connects to the monitoring communication module 4 through an 8-core wire interface and a 485 interface. The monitoring communication module 4 is connected to the control room background 8 through a switch; the control room background 8 controls the electric operating mechanism 7 to perform opening and closing operations by controlling the action of the output relay. It can be understood that the circuit breaker 2 is installed in the outlet drawer of the switch cabinet, the intelligent monitoring module 3 is connected to the outlet end of the circuit breaker, the intelligent monitoring module 3 has a built-in current transformer, and the intelligent monitoring module 3 can monitor the current, voltage, temperature of the connection and the position status of the switch in the circuit through the connection with the circuit breaker; the intelligent monitoring module 3 is connected to the monitoring communication module 4 through the 485 communication line for communication, and the monitoring communication module 4 uses a liquid crystal display to display each collected monitoring quantity. The monitoring communication module 4 is designed with an output relay. If the circuit breaker 2 is provided with an electric operating mechanism 7, the circuit breaker 2 can be electrically operated through the output relay. When operating the switch, the temperature sensor is embedded in the primary connector 5 of the drawer. The incoming plug-in and the outgoing plug-in are connected through an eight-core plug-in port on the side, and the temperature of the three-phase contacts of the incoming and outgoing lines is collected through 485 to the monitoring communication module 4. The monitoring communication module 4 is provided with an optical fiber communication interface, which can be directly connected to the control room background 8, or to the nearest industrial control switch, and then connected to the control room background 8 through the switch, so that the control room can realize real-time monitoring and control of the power and temperature of each circuit on site. In the control room background, limit alarms can also be set for each power, so as to achieve the function of monitoring and alarming each circuit.

[0026] Specifically, the electric operating mechanism 7 includes a fuse, a closing motor, an opening motor and a closing indicator light, and the closing motor, the opening motor and the closing indicator light are all electrically connected to the fuse; the monitoring communication module 4 includes a main control circuit, an electrical parameter acquisition circuit, a communication module, a display circuit, an I / O circuit and a temperature acquisition circuit, and the electrical parameter acquisition circuit, the communication module, the display circuit, the I / O circuit and the temperature acquisition circuit are all electrically connected to the main control circuit, the electrical parameter acquisition circuit includes the above-mentioned current transformer, the communication module includes the above-mentioned communication interface, the display circuit includes the above-mentioned liquid crystal display, the I / O circuit includes a general I / O interface, the temperature acquisition circuit includes the above-mentioned temperature sensor, and the main control circuit can be a general single-chip microcomputer chip, etc. It can be understood that the intelligent monitoring module 3 is embedded with a current transformer and a temperature sensor, and can collect the current, voltage, frequency, power, active and reactive power of the circuit, the temperature of the copper busbar at the connection, and the position status of the circuit breaker 2; the monitoring communication module 4 is designed with a relay output, and the action of the relay is controlled by the control room background 8 to control the electric operating mechanism 7 of the circuit breaker 2 to perform opening and closing operations, thereby achieving the purpose of remote control.

[0027] It can be understood that the utility model has a reasonable design and unique structure, and has the following advantages: 1. The intelligent monitoring module 3 is embedded with a current transformer and a temperature sensor, and can collect the current, voltage, frequency, power, active and reactive power of the circuit, the temperature of the copper bar at the connection, and the position status of the circuit breaker at the same time, so as to realize real-time monitoring of various electrical and non-electrical parameter changes of each circuit, and can discover safety hazards in each circuit as early as possible; 2. The monitoring communication module 4 collects the data collected by the intelligent monitoring module 3 through 485 communication, and is provided with a liquid crystal display to display the collected data, so that the collected various parameters can be clearly and accurately viewed on site; 3. The temperature of the drawer plug-in is collected through the intelligent primary connector 5 embedded with a temperature sensor, and is displayed through the 8-core wire interface and 485 The interface is connected to the monitoring communication module 4, and the temperature of the primary connection is collected in real time. The temperature of the primary connection of the connector 5 can be monitored and viewed in real time, effectively avoiding overheating failures at this weak contact link; 4. The monitoring communication module 4 can be directly connected to the control room background 8 through optical fiber or 485, or connected to the nearest industrial control switch, and then connected to the control room background through the switch, which is convenient for background monitoring, so that the power room can be easily unattended; 5. The monitoring communication module 4 is designed with a relay output, and the action of the relay is controlled by the control room background 8 to control the electric operating mechanism 7 of the circuit breaker 2 to perform opening and closing operations, which can achieve the purpose of remote control and can easily realize the opening and closing operations of the circuit breaker 2 in the control room without leaving the house, greatly improving the work efficiency of the on-duty personnel.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An intelligent low-voltage switch cabinet, comprising a cabinet body, characterized in that: The cabinet is provided with a circuit breaker, an intelligent monitoring module, a monitoring communication module, a primary connector and a conductive copper busbar. The intelligent monitoring module is connected to the outlet of the circuit breaker. The intelligent monitoring module has built-in current transformers and temperature sensors. The circuit breaker is connected to an electric operating mechanism via an output relay. The monitoring communication module is electrically connected to the intelligent monitoring module, the primary connector and the conductive copper busbar respectively.

2. The intelligent low-voltage switch cabinet according to claim 1 is characterized in that: The intelligent monitoring module monitors the current, voltage, temperature of the conductive copper busbar connection and the position status of the circuit breaker in the loop, and communicates with the monitoring communication module through a 485 communication line. The monitoring communication module displays each collected monitoring quantity through a liquid crystal display.

3. The intelligent low-voltage switch cabinet according to claim 1 is characterized in that: The intelligent monitoring module collects the temperature at the plug-in point of the primary connector and connects to the monitoring communication module through an 8-core wire interface and a 485 interface. The monitoring communication module is then connected to the control room backend through a switch.

4. The intelligent low-voltage switch cabinet according to claim 3 is characterized in that: The control room backstage controls the action of the output relay to control the electric operating mechanism to perform opening and closing operations.

5. The intelligent low-voltage switch cabinet according to claim 1 is characterized in that: The electric operating mechanism comprises a fuse, a closing motor, an opening motor and a closing indicator light, and the closing motor, the opening motor and the closing indicator light are all electrically connected to the fuse.

6. The intelligent low-voltage switch cabinet according to claim 2 is characterized in that: The monitoring communication module includes a main control circuit, an electrical parameter acquisition circuit, a communication module, a display circuit, an I / O circuit and a temperature acquisition circuit. The electrical parameter acquisition circuit, the communication module, the display circuit, the I / O circuit and the temperature acquisition circuit are all electrically connected to the main control circuit.

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