Intelligent distribution box

Abstract

The utility model discloses an intelligent distribution box, comprising a cabinet, a time sequence bypass control assembly and an automatic / bypass knob, the time sequence bypass control assembly is in communication connection with the automatic / bypass knob, and the time sequence bypass control assembly and the automatic / bypass knob are arranged in the cabinet. The time sequence bypass control assembly is in communication connection with a plurality of alternating current contactors capable of receiving output signals of the time sequence bypass control assembly to achieve opening and closing, and the time sequence bypass control assembly is connected with a mode adjusting button and a speed adjusting button. According to the intelligent distribution box provided by the utility model, when the intelligent control assembly of the distribution box breaks down, the intelligent control assembly is switched to a bypass through the knob to continuously supply power to the rear end; and meanwhile, power can be sequentially supplied according to a preset time interval, so that the harm caused by excessive instantaneous current is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field especially relates to a kind of intelligent distribution box. BACKGROUND

[0002] With the acceleration of new power system construction, the reliability of terminal power distribution equipment has become the key link restricting the improvement of power supply quality. The traditional intelligent distribution box generally adopts centralized control architecture, and its core controller needs to undertake multiple functions such as data acquisition, relay protection and load scheduling, which has obvious single-point failure risk. When the main control unit fails due to program exception, hardware damage or electromagnetic interference, not only the real-time monitoring function will be interrupted, but also chain reactions such as protection device refusal / malfunction and power supply loop out of control will be caused.

[0003] Although the prior art attempts to improve system reliability through dual-controller redundancy or software watchdog mechanism, it exposes three inherent defects: first, the hardware redundancy scheme requires the configuration of mirror controllers and complex interlocking circuits, resulting in an increase of more than 40% in device size, which is difficult to adapt to space-limited power distribution scenarios; second, the software fault-tolerant mechanism relies on periodic heartbeat detection, and the fault identification has an inherent delay of 200-800 ms, which cannot meet the millisecond-level power supply recovery requirement; third, the traditional bypass protection strategy lacks dynamic response capability to load characteristics and power grid transient process, and is prone to cause voltage sag, inrush current impact and other power quality problems during control right switching. These problems expose the technical bottleneck of current intelligent power distribution equipment in fault isolation and power supply maintenance, and new control architecture needs to be explored to break through the limitations of existing technology. UTILITY MODEL CONTENT

[0004] To solve the problem of normal power supply for the rear-end power consumption after the core control failure in the existing intelligent distribution box, the utility model provides an intelligent distribution box.

[0005] The specific technical solutions are as follows:

[0006] An intelligent distribution box comprises a case, a time sequence bypass control component and an automatic / bypass knob, the time sequence bypass control component and the automatic / bypass knob are communicatively connected, the time sequence bypass control component and the automatic / bypass knob are arranged in the case, the time sequence bypass control component is communicatively connected with multiple AC contactors capable of receiving the output signal of the time sequence bypass control component to realize the opening and closing of the AC contactors, and the time sequence bypass control component is connected with a mode adjustment button and a speed adjustment button.

[0007] Further, the case further comprises a relay, the relay is connected with the time sequence bypass control component and the automatic / bypass knob respectively, and the other end of the automatic / bypass knob is connected with an AC / DC power supply component.

[0008] Further, the output end of the alternating current contactor is connected with an electric monitoring assembly and a temperature monitoring assembly, a plurality of alternating current contactors are connected with a plurality of output ports, the alternating current contactor, the electric monitoring assembly and the temperature monitoring assembly are connected with an intelligent control assembly, and the electric monitoring assembly is connected with an electric leakage sensor.

[0009] Further, the electric monitoring assembly comprises a current sensor and a voltage sensor, the current sensor is used for detecting the current of the power consumption circuit, and the voltage sensor is used for detecting the voltage of the power consumption circuit.

[0010] Further, the time sequence bypass control assembly is provided with four input signals, and the time sequence bypass control assembly is used for controlling the output circuits of the twelve alternating current contactors.

[0011] Further, the mode adjusting button is used for switching the control mode of the time sequence bypass control assembly, and the control mode of the time sequence bypass control assembly comprises control modes with time interval units of millisecond, second, minute and hour.

[0012] Further, the speed adjusting button is used for configuring the time interval values of the control mode of the time sequence bypass control assembly in different units, and the time interval values range from 0 to 15.

[0013] Further, the cabinet is provided with a heat dissipation assembly, and the heat dissipation assembly comprises a heat dissipation window and a fan.

[0014] Further, the cabinet is provided with a configuration screen, which is used for displaying the on-off state and control mode of each alternating current contactor power consumption circuit.

[0015] Further, the cabinet is provided with an indicator light assembly, and the indicator light assembly comprises a three-phase power supply indicator light and a circuit on-off indicator light, the three-phase power supply indicator light is used for indicating the connection state of the connected power supply, and the circuit on-off indicator light is used for indicating the on-off state of the power consumption circuit.

[0016] The above technical scheme has the following advantages or technical effects:

[0017] 1. The time sequence bypass control can improve the reliability of the intelligent power distribution box, and once the intelligent control assembly fails, the bypass can be switched through the knob to continue to supply power to the rear-end power consumption.

[0018] 2. The intelligent power distribution box has independent electric leakage detection and electric shock single-trip protection for each output circuit, and each output unit has independent load current detection and overload single-trip protection, so that the intelligent control assembly has a low failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] In order to make the utility model technical scheme more clearly, the utility model is further explained in detail below in combination with drawings and specific embodiments.

[0021] As Figure 1 Indicated, an intelligent distribution box, comprising: case, time sequence bypass control assembly and automatic / bypass knob, time sequence bypass control assembly and automatic / bypass knob communication connection, time sequence bypass control assembly and automatic / bypass knob are set in the case, time sequence bypass control assembly and mode adjustment button and speed regulation button are connected with multiple AC contactors that can receive the output signal of time sequence bypass control assembly and realize the opening and closing of the multiple AC contactors, the intelligent distribution box is provided with a main switch for controlling the overall on-off of the intelligent distribution box.

[0022] Automatic / bypass knob is used to realize one-key switching of the automatic mode and bypass mode of the distribution box, and one-key bypass can be realized through the automatic / bypass knob, when the automatic mode control of the intelligent distribution box fails, the bypass mode is switched through the automatic / bypass knob, the normal use of the power distribution of the later stage is ensured through the time sequence bypass control assembly, and the impact of the power grid is relieved. The case further comprises a relay, and the relay is connected with the time sequence bypass control assembly and the automatic / bypass knob. The voltage is loaded on the intermediate relay, and then the working voltage is loaded on the time sequence bypass control assembly through the intermediate relay, and the time sequence bypass control assembly can control the AC contactor according to the required mode. The input end of the automatic / bypass knob is connected with the AC / DC power supply assembly, and the output end is connected with the relay.

[0023] The switching signal of the automatic / bypass knob is given to the time sequence bypass control assembly, the output signal of the time sequence bypass control assembly is given to the multiple AC contactors connected therewith, the multiple AC contactors are commonly output by the multiple output ports, and the opening and closing actions of the AC contactors are realized. The time sequence bypass control assembly is provided with four input signals, and the output loop of at most twelve AC contactors can be controlled according to the actual occasion. The mode adjustment button is used to switch the control mode of the time sequence bypass control assembly, and the control mode of the time sequence bypass control assembly includes control modes with time intervals of millisecond, second, minute and hour. The speed regulation button is used to configure the time interval values of different units of the control mode of the time sequence bypass control assembly, and each configuration time length can be set to a value between 0 and 15, and the speed can be set according to the actual needs of the user.

[0024] The timing bypass control assembly can realize timing opening delay and timing closing delay functions. When in the timing opening delay function, the first to twelfth loops can be sequentially executed in order; when in the timing closing delay function, the first to twelfth loops can be sequentially executed in reverse order.

[0025] The output end of each AC contactor is connected with an electric monitoring assembly and a temperature monitoring assembly, the AC contactor, the electric monitoring assembly and the temperature monitoring assembly are used in combination with the intelligent control assembly of the intelligent power distribution box, and the electric monitoring assembly is connected with a leakage sensor. The electric monitoring assembly includes a current sensor and a voltage sensor, the current sensor is used for detecting the current of the power circuit, and the voltage sensor is used for detecting the voltage of the power circuit. The voltage sensor is selected from the ZMPT101B series of Zeminglangxi and can be used for detecting the voltage of the power circuit, the current sensor is selected from the AKH-0.66 / W series of Ankerui and can be used for detecting the current in the circuit, and the residual current transformer is selected from the CTZK660C series of Shenghong and can be used for detecting the size of the leakage current. The monitoring assemblies and the control assembly jointly realize a circuit state acquisition function, including total voltage monitoring, independent current, residual current and circuit switch state monitoring of each loop and temperature acquisition function, and the current, residual current and temperature of each loop can be set, under the control of the timing bypass control assembly, the circuit is tripped when exceeding the set threshold, and is automatically closed when being within the threshold range.

[0026] The temperature monitoring assembly realizes real-time monitoring of the temperature of the power transmission line, the monitoring line temperature range can be set, and an alarm is given when exceeding the set range, so that the harm caused by overheating of the cabinet is reduced. The power line temperature detection part adopts a temperature sensor PT100 or a commonly used NTC.

[0027] The intelligent power distribution box can also detect the fire budding state, when the power circuit equipment is aged or poorly contacted, the controller of the circuit will repeatedly be in an on-off state, electric sparks are generated, the contact is heated, and an electric fire is caused. The intelligent power distribution box can collect the current waveform fingerprint of the load power equipment multiple times in a unit time, compares the current waveform fingerprint with the corresponding current waveform fingerprint in the normal working state, judges whether the load circuit power supply is cut off, and thus eliminates the hidden danger of electric fire in the budding state.

[0028] The cabinet is provided with a heat dissipation assembly, a configuration screen, an indicator light assembly, a cabinet door lock and an incoming / outgoing line sealing plate. The incoming line of the cabinet can adopt a three-phase five-wire system or a single three-wire system, adopt a wall-mounted installation mode, and can adopt an upper incoming line and lower outgoing line mode, a left incoming line and right outgoing line mode and the like. The cabinet has openings on four sides, and each opening is provided with a sealing plate. Different schemes can be selected according to actual conditions.

[0029] The heat dissipation assembly comprises a heat dissipation window and a fan.

[0030] The configuration screen is used for displaying the on-off state and control mode of each AC contactor power circuit and can display the information fed back by the monitoring component and give an alarm when an abnormality occurs. The configuration screen can be a liquid crystal display screen and can display the on-off state of each circuit and the single-circuit control state of each circuit in real time. The configuration screen can also be used in combination with the client software through a wireless network to realize remote intelligent management. The user can remotely monitor and check the working state and information of the power equipment through the client software. The user can set the monitoring threshold through the client software to realize intelligent management, timely handle and alarm various over-limit conditions caused by load equipment failure, and protect the power equipment and personal safety. It should be noted that the intelligent power distribution box has an SMS / GPRS function, and remote monitoring can be realized even in the case of no network coverage or network disconnection.

[0031] The indicator light assembly comprises three-phase power supply indicator lights and circuit on-off indicator lights. The three-phase power supply indicator lights comprise A-phase, B-phase and C-phase power supply indicator lights and are used for indicating the connection state of the connected power supply. The circuit on-off indicator lights are used for indicating the on-off state of the power circuit.

[0032] The incoming / outgoing line sealing plate can be separately detached and different incoming / outgoing line modes can be selected according to the actual situation.

[0033] The intelligent power distribution box can monitor the voltage fluctuation of the commercial power grid in real time and also monitor the load current and residual current in real time. In the specific implementation, the single-phase / three-phase commercial power voltage and single-phase / three-phase current and residual current can be monitored. It should be noted that the above electrical monitoring module can give a real-time alarm when the monitored commercial power voltage, load current or residual current exceeds the preset commercial power voltage, load current or residual current. The detection state of each voltage or current can be reflected through the three power supply indicator lights.

[0034] The intelligent terminal distribution box has independent electric leakage detection, electric shock single-circuit tripping protection function for each output loop; each output unit has independent load current detection, overload single-circuit tripping protection function; each output does not interfere with each other, thereby reducing the control failure rate of the automatic mode.

[0035] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A smart distribution box, characterized in that, The machine case, the timing bypass control assembly and the automatic / bypass knob are connected in communication, the timing bypass control assembly and the automatic / bypass knob are arranged in the machine case, the timing bypass control assembly is connected with a plurality of AC contactors capable of receiving the output signal of the timing bypass control assembly to realize the opening and closing of the AC contactors, and the timing bypass control assembly is connected with a mode adjustment button and a speed adjustment button. The machine case further comprises a relay connected with the timing bypass control assembly and the automatic / bypass knob, and the other end of the automatic / bypass knob is connected with an AC / DC power supply assembly.

2. The intelligent electrical distribution box of claim 1, wherein, The output end of the AC contactor is connected with an electric monitoring assembly and a temperature monitoring assembly, a plurality of AC contactors are connected with a plurality of output ports, the AC contactor, the electric monitoring assembly and the temperature monitoring assembly are connected with an intelligent control assembly, and the electric monitoring assembly is connected with a leakage sensor.

3. The intelligent electrical distribution box of claim 1, wherein, The electric monitoring assembly comprises a current sensor and a voltage sensor, the current sensor is used to detect the current of the power circuit, and the voltage sensor is used to detect the voltage of the power circuit.

4. The intelligent electrical distribution box of claim 3, wherein, The timing bypass control assembly is provided with four input signals, and the timing bypass control assembly is used to control the output circuit of twelve AC contactors.

5. The intelligent electrical distribution box of claim 1, wherein, The mode adjustment button is used to switch the control mode of the timing bypass control assembly, and the control mode of the timing bypass control assembly comprises control modes with time interval units of milliseconds, seconds, minutes and hours.

6. The intelligent electrical distribution box of claim 1, wherein, The speed adjustment button is used to configure the time interval values of different units of the control mode of the timing bypass control assembly, and the time interval values range from 0 to 15.

7. The intelligent electrical distribution box of claim 6, wherein, The machine case is provided with a heat dissipation assembly comprising a heat dissipation window and a fan.

8. The intelligent electrical distribution box of claim 1, wherein, The machine case is provided with a configuration screen for displaying the on-off state and control mode of each AC contactor power circuit.

9. The intelligent electrical distribution box of claim 6, wherein, The machine case is provided with an indicator light assembly comprising a three-phase power indicator light and a circuit on-off indicator light, the three-phase power indicator light is used to indicate the connection state of the connected power supply, and the circuit on-off indicator light is used to indicate the on-off state of the power circuit.

10. The intelligent electrical distribution box of claim 1, wherein, ​

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