Multi-power-supply automatic switching device for field fast food processing vehicle

Abstract

The utility model belongs to the technical field of power supply distribution, and relates to a multi-power-supply automatic switching device for a field fast food processing vehicle. The multi-power-supply automatic switching device is used for switching among multiple power supply circuits. Each power supply circuit comprises a power supply, an intelligent circuit breaker and a fuse, the intelligent circuit breaker in each power supply circuit is connected with a controller, the controller is connected with a UPS (Uninterrupted Power Supply), and the UPS and the fuse in each power supply circuit are connected with a power supply output bus. The multi-power-supply automatic switching device is high in informatization degree, monitoring and recording of voltage, current, leakage current and phase loss of a power supply can be achieved through the intelligent circuit breaker and the controller, and data support is provided for fault diagnosis; the controller can judge the actual quality of the current power supply according to the related data information obtained by the intelligent circuit breaker, set the condition allowing power switching, and ensure the quality of the switched power supply.

Description

Technical Field

[0001] This utility model belongs to the field of power distribution technology and relates to a multi-power automatic switching device for outdoor fast food processing vehicles. Background Technology

[0002] To meet the power demands under different operating conditions such as driving and parking, field fast food processing vehicles typically have multiple power sources, including mains power, diesel generator sets, and parking power take-off (PTO), with power distribution devices capable of switching between multiple power sources. However, the existing power distribution devices mostly rely on manual switching, which is inflexible, untimely, and lacks remote control capabilities. While some have automatic power switching functions, their systems are complex, costly, and have low levels of information technology, making it impossible to monitor information such as voltage, current, leakage current, phase loss, and frequency.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-power automatic switching device for field fast food processing vehicles, thereby improving the flexibility and reliability of power supply for field fast food processing vehicles.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On the one hand, this utility model provides a multi-power automatic switching device for outdoor fast food processing vehicles, used for switching between multiple power supply circuits; each power supply circuit includes a power supply, an intelligent circuit breaker and a fuse, the intelligent circuit breaker in each power supply circuit is connected to a controller, the controller is connected to a UPS power supply, and the UPS power supply and the fuse in each power supply circuit are connected to the power output bus.

[0007] Specifically, the controller is a microcontroller or a PLC.

[0008] Specifically, the intelligent circuit breaker is connected to the controller via power supply and communication lines.

[0009] Specifically, the upper port of the intelligent circuit breaker is connected to the corresponding power supply, the lower port is connected to the upper port of the fuse, and the lower port of the fuse is connected to the power output bus.

[0010] Specifically, the input terminal of the UPS power supply is connected to the power output bus, and the output terminal is connected to the controller.

[0011] Specifically, the controller also connects to the terminal device via its internal communication module to facilitate remote control.

[0012] Specifically, the controller can realize grid-connected expansion of power supply and off-grid black start power supply functions, solve the expansion problem when the transformer is overloaded, and also enable multiple power supplies of the field fast food processing vehicle to be used as part of the external microgrid for external power supply.

[0013] Specifically, the controller can collect and process various real-time data commonly used in power systems, such as remote control signals, switch quantities, PCS, and EMS.

[0014] Specifically, the controller can provide an interface for users to view and process alarm events. When the data exceeds the upper or lower limit, alarm information is output. The alarm information in the power supply system is customized mainly based on the single event or comprehensive analysis results of the substation monitoring system, as well as the monitoring business requirements.

[0015] Specifically, the controller can provide analytical curves for voltage, current, power, power factor, etc.

[0016] Specifically, the controller supports two operating modes when using multiple power sources: peak shaving mode and remote mode.

[0017] Specifically, the controller has different management permissions for different roles, namely maintenance personnel and administrators. The management permissions of different roles are different after logging into the system.

[0018] Further, see Figure 2 The controller has multiple input / output interfaces and adopts a modular design, allowing for convenient, quick, and uninterrupted replacement of AC input units, control modules, DC intelligent power distribution modules, etc., without affecting the normal power supply of the system during the replacement of any module. High-voltage DC boost modules, modular DC switch power distribution units, various DC functional modules, and DC intelligent power distribution modules can be inserted and used in any slot; the plug-in frame can be combined through different module access.

[0019] in,

[0020] ① The DC intelligent power distribution module can be configured as needed to collect real-time data information such as operating voltage, current, power, and on / off status, and to control the power-on and off of each output.

[0021] ② AC input unit, dual 63A / 4P input, can be mechanically interlocked, can be plugged and replaced online, has Class B surge protection, and has voltage, current and electricity metering capabilities;

[0022] ③ The DC remote power distribution unit adopts 10-channel 16A / 2P modular DC switches, which have voltage, current, insulation monitoring and lightning protection functions;

[0023] ④ The control module intelligently schedules the power output of various modules; intelligently schedules the input power supply according to the real-time power supply capacity requirements of the load; and transmits data through FE, RS485, NB-IoT, 4G, or 5G networks to access the management platform.

[0024] ⑤ Modular DC switch distribution unit, consisting of 10 125A DC modular circuit breakers, capable of collecting their operating parameters (voltage, current, on / off status, etc.).

[0025] Specifically, the controller includes a data interface that can upload data including real-time data, alarm data, and statistical data from sensing devices such as PCS, BMS, and electricity meters, and upload them to the cloud data center according to the protocol.

[0026] The controller includes real-time monitoring and data acquisition, data statistics and analysis, energy consumption early warning and dynamic management, intelligent micro-circuit strategy control, visualization display, compatibility and scalability, energy saving and emission reduction support, open source and customization. It is a multi-faceted and comprehensive energy management solution that can not only improve energy efficiency but also reduce costs.

[0027] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0028] The multi-power automatic switching device provided by this utility model has a high degree of informatization. Through intelligent circuit breakers and controllers, it can monitor and record the voltage, current, leakage current, and phase loss of the power supply, providing data support for fault diagnosis. The controller can judge the actual quality of the current power supply based on the relevant data information obtained by the intelligent circuit breaker, set the conditions for allowing power switching, and ensure the quality of the switched power supply. It can also set customized switching strategies and flexibly set the switching priority of each power supply. Attached Figure Description

[0029] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the principle of an automatic multi-power switching device for a field fast food processing vehicle provided by this utility model;

[0032] Figure 2 A structural diagram of the controller provided by this utility model;

[0033] Figure 3 A flowchart illustrating the switching process of the switching device when a single power supply is connected to the present invention. Detailed Implementation

[0034] Exemplary embodiments will be described in detail below. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] Example

[0037] See Figure 1 As shown, this embodiment provides a multi-power automatic switching device for a field fast food processing vehicle, which consists of several power lines. Each power supply circuit includes an intelligent circuit breaker. The upper port of the intelligent circuit breaker is connected to the corresponding power supply, and the lower port is connected to the upper port of a fuse. The lower port of the fuse is connected to the power output bus. The input terminal of the UPS power supply is connected to the power output bus, and the output terminal is connected to the controller to supply power to the controller. The controller is connected to each intelligent circuit breaker through power supply and communication lines to supply power to each intelligent circuit breaker and realize communication control. The controller also connects to the terminal device through its internal communication module to facilitate remote control.

[0038] The distribution and specific functions of each module are as follows:

[0039] Intelligent circuit breakers: Distributed on the power supply access circuit, used to communicate with the controller, receive controller commands to complete the switching of power supply lines; used for overcurrent, short circuit, leakage current, and phase loss protection of the lines; used for collecting parameters such as current, voltage, leakage current, and frequency of the lines and uploading them to the controller.

[0040] Fuse: Distributed on the power supply input circuit, used as backup short-circuit protection for the power supply circuit in which it is located;

[0041] UPS power supply: Uninterruptible power supply, used to power components such as controllers and intelligent circuit breakers;

[0042] Controller: Used to receive relevant data information from the intelligent circuit breaker, including parameters such as voltage, current, leakage current, and frequency of the current power supply circuit; and to analyze and judge the current input power supply based on the relevant data information, and to realize the switching control of the input power supply in combination with the set switching strategy; the controller can be a PLC or a microcontroller.

[0043] Power output bus: Used to connect the circuits of electrical equipment to provide power to external devices.

[0044] Specifically, the controller can realize grid-connected expansion of power supply and off-grid black start power supply functions, solve the expansion problem when the transformer is overloaded, and also enable multiple power supplies of the field fast food processing vehicle to be used as part of the external microgrid for external power supply.

[0045] Specifically, the controller can collect and process various real-time data commonly used in power systems, such as remote control signals, switch quantities, PCS, and EMS.

[0046] Specifically, the controller can provide an interface for users to view and process alarm events. When the data exceeds the upper or lower limit, alarm information is output. The alarm information in the power supply system is customized mainly based on the single event or comprehensive analysis results of the substation monitoring system, as well as the monitoring business requirements.

[0047] Specifically, the controller can provide analytical curves for voltage, current, power, power factor, etc.

[0048] Specifically, the controller supports two operating modes when using multiple power sources: peak shaving mode and remote mode.

[0049] Specifically, the controller has different management permissions for different roles, namely maintenance personnel and administrators. The management permissions of different roles are different after logging into the system.

[0050] Further, see Figure 2 As shown, the controller has multiple input / output interfaces and adopts a modular design, allowing for convenient, quick, and uninterrupted replacement of AC input units, control modules, DC intelligent power distribution modules, etc., without affecting the normal power supply of the system during the replacement of any module. High-voltage DC boost modules, modular DC switch power distribution units, various DC functional modules, and DC intelligent power distribution modules can be inserted and used in any slot; the plug-in frame can be combined through different module access.

[0051] The DC intelligent power distribution module is located on the upper left side of the controller. The AC input unit is located below the DC intelligent power distribution module. The modular DC switch power distribution unit is adjacent to the DC intelligent power distribution module. Below the modular DC switch power distribution unit is the control module. Below and to the right of the control module are the DC power access control modules. From left to right, the lower part of the controller contains the high-voltage DC boost module and the new energy access control module. Below the high-voltage DC boost module and the new energy access control module is the same DC remote power distribution unit. Specifically, the design and function of each module are as follows:

[0052] ① The DC intelligent power distribution module can be configured as needed to collect real-time data information such as operating voltage, current, power, and on / off status, and to control the power-on and off of each output.

[0053] ② AC input unit, dual 63A / 4P input, can be mechanically interlocked, can be plugged and replaced online, has Class B surge protection, and has voltage, current and electricity metering capabilities;

[0054] ③ The DC remote power distribution unit adopts 10-channel 16A / 2P modular DC switches, which have voltage, current, insulation monitoring and lightning protection functions;

[0055] ④ The control module intelligently schedules the power output of various modules; intelligently schedules the input power supply according to the real-time power supply capacity requirements of the load; and transmits data through FE, RS485, NB-IoT, 4G, or 5G networks to access the management platform.

[0056] ⑤ Modular DC switch distribution unit, consisting of 10 125A DC modular circuit breakers, capable of collecting their operating parameters (voltage, current, on / off status, etc.).

[0057] Specifically, the controller includes a data interface that can upload data including real-time data, alarm data, and statistical data from sensing devices such as PCS, BMS, and electricity meters, and upload them to the cloud data center according to the protocol.

[0058] The controller includes real-time monitoring and data acquisition, data statistics and analysis, energy consumption early warning and dynamic management, intelligent micro-circuit strategy control, visualization display, compatibility and scalability, energy saving and emission reduction support, open source and customization. It is a multi-faceted and comprehensive energy management solution that can not only improve energy efficiency but also reduce costs.

[0059] The aforementioned multi-power automatic switching device for outdoor fast food processing vehicles monitors and records power supply voltage, current, leakage current, and phase loss through intelligent circuit breakers and controllers. The controller then judges the actual power quality based on the received data and selects a suitable power supply according to the set power priority order.

[0060] Furthermore, the power supply is preferably connected to a mobile microgrid system. This multi-power automatic switching device, once connected to the mobile microgrid system, has the capability for full energy access and multiple AC / DC outputs. The power supply unit can directly supply power according to load demand, provide off-grid power in the form of a microgrid, and also be used for voltage boosting at the grid-connected end. The entire system has a comprehensive monitoring and management platform that can control the energy operation status within the site, and can provide a quantum encryption scheme to indicate the control security level. By determining whether the energy input can meet the load demand, if the input is less than the load, the energy storage unit is activated, and then, according to user-defined settings, equipment such as diesel / gasoline generators, metal fuel cell machines, and hydrogen fuel cell generators are started.

[0061] Specifically, the working principle of the aforementioned multi-power automatic switching device for field fast food processing vehicles is as follows:

[0062] 1. When only one power supply is connected

[0063] When the multi-power automatic transfer switch is in a power outage state, the intelligent circuit breaker and controller are powered by the UPS and are in standby mode; when only one power supply is connected, see [link to relevant documentation]. Figure 3 As shown, the specific switching method is as follows:

[0064] Step 1: Obtain relevant data information of the current power supply circuit through the intelligent circuit breaker;

[0065] Step 2: The controller communicates with the intelligent circuit breaker, determines whether the voltage signal is qualified based on the acquired voltage signal, and determines whether there is a phase loss signal in the current power supply.

[0066] Step 3: If the voltage signal is within the set threshold range and there is no phase loss problem, the controller sends a connection command to the intelligent circuit breaker, and the corresponding contacts of the intelligent circuit breaker are connected to deliver the current power supply to the power output bus.

[0067] Step 4: If the voltage signal exceeds the set threshold range, or if there is a phase loss signal in the current power supply, the controller sends a disconnect command to the smart circuit breaker, and the corresponding contacts of the smart circuit breaker open to terminate the power supply.

[0068] 2. When multiple power supplies are connected

[0069] The controller monitors the input status of the power supply through the intelligent circuit breakers in each power supply circuit, sorts the priorities of all power supply circuits, and selects the power supply with the highest priority that meets the power quality requirements to be connected.

[0070] When the connected power supply circuit is interrupted or its power quality does not meet the requirements, the controller re-prioritizes the remaining power supplies that meet the requirements, disconnects the currently connected power supply circuit, and switches to the highest priority power supply for power supply.

[0071] Furthermore, when the connected power supply is working normally and a new power supply appears, if the quality of the new power supply meets the requirements and its priority is higher than that of the current power supply, an alarm signal will be generated, and the power supply with higher priority will be automatically switched after a delay of several seconds.

[0072] In summary, the multi-power automatic switching device for field fast food processing vehicles provided by this utility model has a simple structure, low cost, automatic switching, and high degree of informatization. It solves the shortcomings of current multi-power switching devices that are mainly manual switching, have inflexible control, untimely switching, and cannot be remotely controlled, thus improving the flexibility and reliability of power supply for field fast food processing vehicles.

[0073] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0074] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A multi-power automatic switching device for field fast food processing vehicle, for switching between multi-path power supply circuit; characterized in that, Each of the power supply circuits comprises a power supply, an intelligent circuit breaker and a fuse, the intelligent circuit breaker in each of the power supply circuits is connected with a controller, the controller is connected with a UPS power supply, the UPS power supply and the fuse in each of the power supply circuits are connected with a power output bus; The intelligent circuit breaker is connected with the controller through a power supply and communication line, is used for communication with the controller, receives an instruction of the controller to complete switching of a power supply line, is used for overcurrent, short circuit, electric leakage and open phase protection of the line, is used for voltage, current, leakage current and frequency parameter collection of the line and uploading to the controller; The upper port of the intelligent circuit breaker is connected with a corresponding power supply, the lower port is connected with the upper port of the fuse, the lower port of the fuse is connected with the power output bus, and the fuse is used as backup short circuit protection of the power supply circuit; The controller has a plurality of input / output interfaces, including: The DC intelligent power distribution module is used for collecting real-time data information of the power supply operation, thereby controlling power-on and power-off of each power supply; the AC input unit adopts double 63A / 4P input to realize mechanical interlocking and has an online plug-in replacement function; The DC remote power distribution unit adopts a 10-way 16A / 2P modular DC switch; The control module is used for intelligent scheduling of power outputs of various modules; the input power is intelligently scheduled according to real-time power supply capacity requirements of the load; the control module transmits data through FE, RS485 or NB-IOT or 4G network or 5G network and accesses a management platform; The modular DC switch power distribution unit adopts a 10-way 125A DC modular circuit breaker.

2. The multi-power automatic switching device for field fast food processing vehicle according to claim 1, characterized in that, The controller is a single-chip microcomputer or a PLC.

3. The multi-power automatic switching device for field fast food processing vehicle according to claim 1, characterized in that, The input end of the UPS power supply is connected with the power output bus, and the output end is connected with the controller.

4. The multi-power automatic switching device for field fast food processing vehicle according to claim 1, characterized in that, The controller further comprises a data interface, which is used for uploading real-time data, alarm data and statistical data of PCS, BMS and electric meters and uploading cloud data center according to a protocol.

5. The multiple power supply automatic switching device for field fast food processing vehicle according to claim 1, characterized in that, The controller further comprises a high-voltage DC booster module and a new energy access control module.

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