CN115441578A - Dual-power switching box - Google Patents
Dual-power switching box Download PDFInfo
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- CN115441578A CN115441578A CN202211281653.2A CN202211281653A CN115441578A CN 115441578 A CN115441578 A CN 115441578A CN 202211281653 A CN202211281653 A CN 202211281653A CN 115441578 A CN115441578 A CN 115441578A
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- Prior art keywords
- terminal
- interface
- power supply
- power
- switching box
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The embodiment of the invention discloses a dual-power switching box. The dual-power switching box comprises a switching box main body and a cabinet door matched with the switching box main body; the switching box main body comprises a switching switch module and a cable interface, and the switching switch module is used for selecting and switching a normal state or a power supply protection state; the cable interface comprises a load end electricity utilization interface, a UPS power supply input interface, a conventional power supply interface, a UPS power supply output interface and a power generation car access interface; the change-over switch module comprises a first terminal, a second terminal, a third terminal and a fourth terminal; the cabinet door comprises an intelligent gateway and a sensor, wherein the sensor is used for collecting output current and sending the output current to the intelligent gateway; the switching box main body also comprises a wireless temperature measuring device, and the wireless temperature measuring device is used for collecting the temperature of the cable joint and sending the temperature to the intelligent gateway; the intelligent gateway is used for alarming when the temperature of the cable joint, the input current and the output current are abnormal. The invention realizes the quick wiring of the cable, improves the working efficiency and realizes the data acquisition and the abnormal condition alarm.
Description
Technical Field
The embodiment of the invention relates to the technical field of power supply and distribution equipment, in particular to a dual-power switching box.
Background
With the rapid development of social economy, the power supply protection activities such as various major conferences, sports events, important activities, various examinations and the like are more and more frequent, most power supply protection places are relatively fixed, but UPS power supply equipment is not equipped in many places, and the requirement of uninterrupted power supply cannot be met. At present, a method for solving the problem that UPS power supply equipment is not configured in a power supply protection place is to temporarily configure a UPS power supply vehicle and a power generation vehicle, and connect the UPS power supply vehicle and the power generation vehicle to a power supply protection line through a cable, a power supply switching box and a low-voltage tapping box.
The power supply line is required to be wired in advance, a core loop related to power supply is detached from a user low-voltage cabinet, a temporary cable is connected, and the temporary cable is connected to a dual-power switching box through a plurality of low-voltage distribution boxes; alternating current commercial power supply needs to be detached from a feed cabinet of a power distribution station and is connected to the dual-power switching box through a connection temporary cable. The connection of the dual power switching box is also provided with UPS power supply vehicles (a return inlet wire and a return outlet wire) allocated by the power supply department, and the specific wiring mode and the working principle are shown in detail in figures 1 and 2. Under normal conditions, dual supply switches case and switches to circuit 1, protects the direct mains operated then output of power supply line and gives the low pressure distribution box, and mains operated does not pass through UPS supply vehicle, avoids UPS supply vehicle to charge for a long time, influences its life-span. Before the activity of guaranteeing the power supply begins, dual supply switching box switches to circuit 2 in advance, and mains supply passes through dual supply switching box, floats to the UPS supply vehicle and fills, gets back to dual supply switching box from the UPS supply vehicle again, supplies to guaranteeing the power supply line, ensures in case the commercial power is interrupted, guarantees that the power supply line can incessant power supply.
The cable that inserts dual supply switching case is 3 times totally, every 1 time the cable divide into A, B, C, N4 branch cables altogether, refute like this and connect about the cable time spent the most ideal also 1 hour, if meet the operator skill unskilled, the unwrapping wire topography is complicated, the efficiency of dual supply switching case wiring will be lower, a large amount of manpowers have been wasted, the installation progress has also been delayed, guarantee that power supply work receives the influence of different degree, the intelligent degree of dual supply switching case is lower, can't carry out dynamic monitoring to it.
Disclosure of Invention
The invention provides a dual-power switching box, which realizes quick wiring of cables and improves the working efficiency; and an intelligent gateway and a sensor are added to realize data acquisition such as current and temperature and abnormal condition alarm.
According to an aspect of the present invention, there is provided a duplicate supply switching box including: the switching box comprises a switching box main body and a cabinet door matched with the switching box main body;
the switching box main body comprises a switching switch module and a cable interface, the switching switch module comprises a switching switch, and the switching switch is used for selecting and switching a normal state or a power supply protection state;
the cable interface comprises a load end electricity utilization interface, a UPS power supply input interface, a conventional power supply interface, a UPS power supply output interface and a power generation car access interface; the load end electric interface is connected with a load through a cable and used for supplying power to the load; the UPS power supply input interface is connected with the UPS power supply through a cable and is used for charging the UPS power supply when power supply is ensured; the conventional power interface is connected with commercial power through a cable and is used for inputting a power supply; the UPS power supply output and power generation car access interface is connected with the UPS power supply and the power generation car through cables and is used for accessing the UPS power supply and the power generation car during power failure;
the change-over switch module comprises a first terminal, a second terminal, a third terminal and a fourth terminal, wherein the first terminal is connected with the load end through an electric interface, the second terminal is connected with the conventional power interface, the third terminal is connected with the UPS power output and the power generation car access interface, and the fourth terminal is connected with the UPS power input interface;
the cabinet door comprises an intelligent gateway and a sensor, the sensor is respectively connected with the first wiring terminal, the second wiring terminal, the third wiring terminal and the fourth wiring terminal, the sensor is used for collecting input currents of the second wiring terminal and the fourth wiring terminal, and output currents of the first wiring terminal and the third wiring terminal are sent to the intelligent gateway;
the switching box main body further comprises a wireless temperature measuring device, the wireless temperature measuring device is arranged on the first wiring end, the second wiring end, the third wiring end and the fourth wiring end, and the wireless temperature measuring device is used for collecting the cable joint temperatures of the second wiring end and the fourth wiring end, the cable joint temperatures of the first wiring end and the third wiring end and sending the cable joint temperatures to the intelligent gateway;
and the intelligent gateway is used for alarming when the temperature of the cable joint, the input current and the output current are abnormal.
Optionally, the sensor comprises a multifunctional digital voltmeter for recording the current of each time period.
Optionally, the load end power utilization interface, the UPS power input interface, the conventional power interface, the UPS power output interface, and the power car access interface all include four sub-interfaces, and the four sub-interfaces respectively correspond to A, B, C, N of a three-phase four-wire system power supply.
Optionally, the first terminal includes four sub-terminals, which respectively correspond to four sub-interfaces of the electrical interface of the load terminal; the second terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the conventional power interface; the third terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the UPS power output and the generator car access interface; the fourth terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the UPS power supply input interface.
Optionally, the first terminal and the fourth terminal are electrically connected internally, and the second terminal and the third terminal are electrically connected internally.
Optionally, the switching box main body and the cabinet door are both provided with a door state sensor, and the door state sensor is used for detecting the opening and closing state of the dual power switching box.
Optionally, the dual power switching box further comprises a plurality of heat dissipation holes arranged in a rectangular array and arranged on the side face, and the heat dissipation holes are used for gas exchange and heat dissipation.
Optionally, the dual power switching box further comprises an audible and visual alarm device, and the audible and visual alarm device is used for alarming and prompting in case of abnormal conditions.
Optionally, the dual power switching box further comprises a lighting device for auxiliary lighting.
Optionally, dual power supply switching case still includes dehydrating unit, dehydrating unit is used for monitoring the inside humidity of box, works as when humidity is greater than the default, carries out quick hydrofuge.
According to the technical scheme of the embodiment, the wiring port of the dual-power switching box is improved and optimized, cable quick interfaces of a UPS power supply vehicle and a power generation vehicle are installed on the dual-power switching box, the quick interfaces are installed on the dual-power switching box, quick wiring can be realized, and the wiring time can be controlled to be about 5 minutes; carry out intelligence transformation to dual power switching box, install intelligent gateway and sensor additional in its inside, gather input, output current and cable joint's temperature, data transmissibility carries out real time monitoring to the backstage, reports to the police the suggestion to abnormal conditions. The technical scheme of the embodiment solves the problems that the existing power supply junction box is low in wiring efficiency, wastes human resources, delays installation progress and is low in intelligent degree; the access speed of the cable is improved, the cable is quickly wired, the working efficiency is improved, the human resources are saved, and the installation progress is not influenced; and an intelligent gateway and a sensor are added, so that data acquisition such as current and temperature and abnormal condition alarm are realized, and the intelligent degree of the dual-power switching box is improved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a prior art electrical wiring diagram of a power protection circuit;
fig. 2 is a schematic diagram illustrating the operation of the dual power switching box according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of a dual power switching box according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another dual power switching box provided in accordance with an embodiment of the present invention;
fig. 5 is a front view of a dual power switching box provided according to an embodiment of the present invention;
fig. 6 is a side view of a duplicate power switching box provided in accordance with an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 3 is a schematic structural diagram of a dual power supply switching box according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of another dual power supply switching box according to an embodiment of the present invention, and referring to fig. 3 and fig. 4, an embodiment of the present invention provides a dual power supply switching box, including: a switching box main body 10 and a cabinet door 20 adapted to the switching box main body 10; the switching box main body 10 comprises a switching switch module 101 and a cable interface 102, the switching switch module 101 comprises a switch 1015, and the switch 1015 is used for selectively switching a normal state or a power-saving state; the cable interface 102 comprises a load side power utilization interface 1021, a UPS power input interface 1022, a conventional power interface 1023, and a UPS power output and generator car access interface 1024; the load end electricity utilization interface 1021 is connected with a load through a cable and used for supplying power to the load; the UPS power input interface 1022 is connected to a UPS power source through a cable, and is configured to charge the UPS power source when supplying power; the conventional power interface 1023 is connected with mains supply through a cable and used for inputting a power supply; the UPS power output and power generation vehicle access interface 1024 is connected with the UPS power supply and the power generation vehicle through cables and is used for accessing the UPS power supply and the power generation vehicle during power failure; the change-over switch module 101 comprises a first terminal 1011, a second terminal 1012, a third terminal 1013 and a fourth terminal 1014, wherein the first terminal 1011 is connected with a load end electric interface 1021, the second terminal 1012 is connected with a conventional power interface 1023, the third terminal 1013 is connected with a UPS power output and a generator car access interface 1024, and the fourth terminal 1014 is connected with a UPS power input interface 1022; the cabinet door 20 comprises an intelligent gateway 201 and a sensor 202, wherein the sensor 202 is respectively connected with a first terminal 1011, a second terminal 1012, a third terminal 1013 and a fourth terminal 1014, and the sensor 202 is used for collecting input current of the second terminal 1012 and the fourth terminal 1014 and output current of the first terminal 1011 and the third terminal 1013 and sending the input current and the output current to the intelligent gateway 201; the switching box main body 10 further comprises a wireless temperature measuring device 103, the wireless temperature measuring device 103 is arranged on the first terminal 1011, the second terminal 1012, the third terminal 1013 and the fourth terminal 1014, and the wireless temperature measuring device 103 is used for collecting the cable joint temperatures of the second terminal 1012 and the fourth terminal 1014 and the cable joint temperatures of the first terminal 1011 and the third terminal 1013 and sending the cable joint temperatures to the intelligent gateway 201; the intelligent gateway 201 is used for alarming when the temperature of the cable joint, the input current and the output current are abnormal.
Specifically, the cable interface 102 is not a conventional aircraft connector, industrial plug, or the like, but rather is a modified mechanical interface that facilitates quick connection with a cable. The cable interface 102 is made up of four different color interfaces, for example, the color of the cable interface 102 may be yellow, green, red, and blue. The UPS power input interface 1022, the conventional power interface 1023 and the UPS power output and generator car access interface 1024 in the dual power switching box cable interface 102 are respectively connected with the input end of the UPS power car, the ac mains supply interface, the output end of the UPS power car or the input end of the generator car through cables. The connection mode between the dual-power switching box and the outside is changed into 12 quick cable interfaces 102 by connecting the original 3-cable (12 branch cables) with the wire lug to the busbar of the dual-power switching box, and the 12 branch cables can be quickly connected to the dual-power switching box.
Under normal conditions, change over switch 1015 of dual power switching case change over switch module 101 switches to normal condition, and the guarantor power supply line is directly supplied power by power supply alternating current commercial power commonly used, and alternating current commercial power loops through conventional power source interface 1023 through the cable, and second wiring end 1012, first wiring end 1011, load end use of electricity interface 1021 supply power for the load. Under the normal condition, exchange mains supply and do not pass through the UPS power, avoid the long-time charging of UPS power, influence the life-span of UPS power.
Before the power-protection activity starts, a change-over switch 1015 of a double-power-supply change-over box change-over switch module 101 is switched to a power-protection state, alternating current commercial power passes through a conventional power interface 1023, a second terminal 1012 and a third terminal 1013 through a cable, and a UPS power output and generator car access interface 1024 carries out floating charge on a UPS power supply of a standby power supply; and then the standby power supply UPS returns to the UPS power supply input interface 1022 in the double-power-supply switching box and is supplied to the protection power supply line through the load end power utilization interface 1021 and the cable, so that the protection power supply line can supply power uninterruptedly in case of interruption of the mains supply.
The UPS power supply can only supply power for a short time, the emergency power generation car is arranged to charge the UPS power supply, and the power supply line can supply power uninterruptedly. The UPS power is equivalent to large-scale treasured that charges, and the ordinary is at the floating charge state, if do not have the UPS power, only emergent power-generating truck, no matter how fast the operation switches, and the lamp holder of load end all can flash on the wrong way, all can perceive the power failure. The UPS power supply and the emergency generator car are matched for use to realize the power-off effect, and the lamp holder cannot flash.
It should be noted that the UPS power supply in this embodiment may be a UPS power supply vehicle, and the application of the UPS power supply vehicle may be that, when the commercial power is cut off and cannot be recovered in a short time, the UPS power supply is used to supply power, so that seamless connection of power supply can be realized in real time. After the mains supply is powered off, the inverter in the grid-connected output state works, the storage battery discharges electricity and outputs the electricity through the inverter, and the electricity is seamlessly replaced by the mains supply to supply a load. When the mains supply is called again, the inverter tracks the mains supply, the input power supply of the generator is automatically switched back to the mains supply to work, and meanwhile, the generator stops working. The power supply time of the UPS power supply vehicle can meet the emergency power supply requirement of the power station power control system under emergency conditions. Meanwhile, the continuous working time is not less than 2 hours. Therefore, the uninterrupted operation of the equipment is ensured by switching the commercial power supply of the operation equipment into the UPS power supply, and the influence of the accident power failure on the production and the life is reduced to zero.
The sensor 202 collects the AC mains input current at a second terminal 1012 and the input current of the UPS at a fourth terminal 1014; the first terminal 1011 outputs current to the load, and the third terminal 1013 outputs current to the UPS power supply; the wireless temperature measuring device 103 acquires the temperature input by the cable joints of the second terminal 1012 and the fourth terminal 1014 and the temperature output by the cable joints of the first terminal 1011 and the third terminal 1013; the intelligent gateway 201 can acquire the current and temperature data in a wireless transmission mode, can also monitor the temperature and the current in real time in a background in a wireless transmission mode, and can give an alarm to abnormal conditions, so that field workers can timely handle and remove faults, and the uninterrupted power supply of a power supply line is ensured.
According to the technical scheme of the embodiment, the wiring port of the dual-power switching box is improved and optimized, cable quick interfaces of a UPS power supply vehicle and a power generation vehicle are installed on the dual-power switching box, the quick interfaces are installed on the dual-power switching box, quick wiring can be realized, and the wiring time can be controlled to be about 5 minutes; carry out intelligent transformation to dual supply switching box, install intelligent gateway and sensor additional in its inside, gather input, output current and cable joint's temperature, data transmissible carries out real time monitoring to the backstage, reports to the police the suggestion to abnormal conditions. The technical scheme of the embodiment solves the problems that the existing power supply junction box is low in wiring efficiency, wastes human resources, delays installation progress and is low in intelligent degree; the access speed of the cable is improved, the cable is quickly wired, the working efficiency is improved, the human resources are saved, and the installation progress is not influenced; and an intelligent gateway and a sensor are added, so that data acquisition such as current and temperature and abnormal condition alarm are realized, and the intelligent degree of the dual-power switching box is improved.
With continued reference to fig. 3, optionally, the sensor 202 includes a multi-function digital voltmeter for recording the current for each time period.
Specifically, the sensor 202 may be a multifunctional digital voltage/current meter, and may store the current of the line in each time period, so as to provide a basis for subsequent transformation of a power supply place.
With continued reference to fig. 3, optionally, the load side power utilization interface 1021, the UPS power input interface 1022, the regular power interface 1023, and the UPS power output and generator car access interface 1024 each include four sub-interfaces, each of which corresponds to A, B, C, N of the three-phase four-wire system power supply.
Specifically, the power protection and supply line is 380V voltage in a three-phase four-wire system, and the four sub-interfaces respectively correspond to A, B, C, N of the three-phase four-wire system power supply. The four sub-interfaces are four interfaces with different colors, for example, the four sub-interfaces can be yellow, green, red and blue.
With continued reference to fig. 3, optionally, the first terminal 1011 includes four sub-terminals, respectively corresponding to the four sub-interfaces of the load-side electrical interface 1021; the second terminal 1012 includes four sub-terminals corresponding to the four sub-interfaces of the conventional power interface 1023, respectively; the third terminal 1013 includes four sub-terminals respectively corresponding to the UPS power output and the four sub-interfaces of the generator car access interface 1024; the fourth terminal 1014 includes four sub-terminals corresponding to the four sub-interfaces of the UPS power input interface 1022, respectively.
Specifically, four sub-terminals of the first terminal 1011 are connected to four sub-interfaces of the load-side electrical interface 1021 through copper bars, and four sub-terminals of the fourth terminal 1014 are connected to four sub-interfaces of the UPS power input interface 1022 through copper bars. The four sub-terminals of the second terminal 1012 correspond to and are electrically connected to the four sub-interfaces of the regular power interface 1023, and the four sub-terminals of the third terminal 1013 correspond to and are electrically connected to the four sub-interfaces of the UPS power output and the generator car access interface 1024.
With continued reference to fig. 3, optionally, the first terminal 1011 and the fourth terminal 1014 are electrically interconnected internally, and the second terminal 1012 and the third terminal 1013 are electrically interconnected internally.
Specifically, the first terminal 1011 and the fourth terminal 1014 are electrically connected through a copper bar, so that an internal electrical path is realized; the second terminal 1012 and the third terminal 1013 are electrically connected by a copper bar, achieving an internal electrical path. When power supply is guaranteed, alternating current commercial power can reach the fourth terminal 1014 through the first terminal 1011 and is connected to the UPS vehicle through the cable to charge the UPS vehicle; or the UPS power supply vehicle is charged when the emergency power generation vehicle is connected; and then returns to the third terminal 1013 of the dual power switching box from the UPS power supply vehicle through the cable, and then is supplied to the protection power supply line through the second terminal 1012 and the cable, so as to ensure that the protection power supply line can supply power uninterruptedly in case of interruption of the mains supply.
With continued reference to fig. 4, optionally, both the switching box body 10 and the cabinet door 20 are provided with a door state sensor 30, the door state sensor 30 being used to detect the open-close state of the dual power switching box.
Specifically, door state sensor 30 possesses the function of uploading the opening of dual power switching case cabinet door 20, close state signal to intelligent gateway 201, opens and does not close for a long time after accomplishing cable run's connection when cabinet door 20, and intelligent gateway 201 can in time report to the police and indicate, ensures dual power switching case's normal safe operation.
The door state sensor 30 may be selected from a mechanical limit switch with contacts or a sensor with a magnetic switch of polarity; the door state sensor 30 is made of high-quality materials, the shell is made of stainless steel or alloy, the door state sensor is waterproof and rustproof, stable performance is guaranteed, false alarm is avoided, and mechanical action times are not less than 5000. The door state sensor 30 is of a passive design and does not require a power line or an external power source. The door state sensor 30 is connected to the intelligent gateway in the dual power supply switching box through a wired node signal.
Fig. 5 is a front view of a dual power switching box provided according to an embodiment of the present invention, fig. 6 is a side view of the dual power switching box provided according to an embodiment of the present invention, and referring to fig. 5 and 6, optionally, the dual power switching box further includes a plurality of heat dissipation holes 40 arranged in a rectangular array disposed on the side, the heat dissipation holes 40 being used for gas exchange and heat dissipation.
Specifically, the dual power switching box is divided according to functional partitions, the switching box main body 10 can be an incoming line outlet chamber, and the cabinet door 20 can be a metering chamber. Louvre 40 is down along incision and box side parallel and level, go up along set up the arch and with the cabinet board integrated into one piece of box, inside louvre 40 effectively prevented that the rainwater from getting into the box, louvre 40 can carry out ventilation cooling to realize the gaseous heat exchange in box.
Optionally, the dual power switching box further comprises an audible and visual alarm device, and the audible and visual alarm device is used for alarming and prompting in case of abnormal conditions.
Specifically, the sound and light alarm device is an alarm signal device which sends out alarm signals to people through sound and various lights. When the dual-power switching box is in an accident or special condition, the sound-light alarm device sends out strong sound-light alarm signals so as to achieve the purpose of reminding field personnel of paying attention.
Optionally, the dual power switching box further comprises a lighting device for auxiliary lighting.
Specifically, when night or cloudy day light condition is relatively poor, lighting device can be used for auxiliary lighting, realizes the cable and works a telephone switchboard fast, improves work efficiency.
Optionally, dual power supply switching case still includes dehydrating unit, and dehydrating unit is used for monitoring the inside humidity of box, when humidity is greater than the default, carries out quick hydrofuge.
Specifically, set up dehydrating unit in dual supply switches incasement, carry out real-time supervision to the humidity of inside, when humidity appears and is greater than the default, open the exhaust fan, make the circulation of air, dehumidify fast.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A duplicate supply switching box is characterized by comprising: the switching box comprises a switching box main body and a cabinet door matched with the switching box main body;
the switching box main body comprises a switching switch module and a cable interface, the switching switch module comprises a switching switch, and the switching switch is used for selecting and switching a normal state or a power supply protection state;
the cable interface comprises a load end electricity utilization interface, a UPS power supply input interface, a conventional power supply interface, a UPS power supply output interface and a power generation car access interface; the load end electric interface is connected with a load through a cable and used for supplying power to the load; the UPS power supply input interface is connected with the UPS power supply through a cable and is used for charging the UPS power supply when power supply is ensured; the conventional power interface is connected with commercial power through a cable and is used for inputting a power supply; the UPS power supply output and power generation vehicle access interface is connected with the UPS power supply and the power generation vehicle through cables and is used for accessing the UPS power supply and the power generation vehicle during power failure;
the change-over switch module comprises a first terminal, a second terminal, a third terminal and a fourth terminal; the first terminal is connected with the load end through an electric interface, the second terminal is connected with the conventional power supply interface, the third terminal is connected with the UPS power supply output interface and the power generation car access interface, and the fourth terminal is connected with the UPS power supply input interface;
the cabinet door comprises an intelligent gateway and a sensor, the sensor is respectively connected with the first wiring terminal, the second wiring terminal, the third wiring terminal and the fourth wiring terminal, the sensor is used for collecting input currents of the second wiring terminal and the fourth wiring terminal, and output currents of the first wiring terminal and the third wiring terminal are sent to the intelligent gateway;
the switching box main body further comprises a wireless temperature measuring device, the wireless temperature measuring device is arranged on the first wiring end, the second wiring end, the third wiring end and the fourth wiring end, and the wireless temperature measuring device is used for collecting the cable joint temperatures of the second wiring end and the fourth wiring end, the cable joint temperatures of the first wiring end and the third wiring end and sending the cable joint temperatures to the intelligent gateway;
the intelligent gateway is used for alarming when the temperature of the cable joint, the input current and the output current are abnormal.
2. The dual power switching box of claim 1, wherein the sensor comprises a multifunctional digital voltmeter for recording current for each time period.
3. The dual power switching box of claim 1, wherein the load side power interface, the UPS power input interface, the regular power interface, and the UPS power output and generator car access interface each comprise four sub-interfaces, and the four sub-interfaces respectively correspond to A, B, C, N of a three-phase four-wire system power supply.
4. The dual power switching box of claim 3, wherein the first terminal comprises four sub-terminals corresponding to four sub-interfaces of the electrical interface for the load side, respectively; the second terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the conventional power interface; the third terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the UPS power output and the generator car access interface; the fourth terminal comprises four sub-terminals which respectively correspond to the four sub-interfaces of the UPS power supply input interface.
5. The dual power switching case of claim 1, wherein the first terminal and the fourth terminal are electrically connected internally and the second terminal and the third terminal are electrically connected internally.
6. The dual power switching box of claim 1, wherein the switching box body and the cabinet door are each provided with a door state sensor for detecting an open/close state of the dual power switching box.
7. The dual power switching box of claim 1, further comprising a plurality of laterally disposed heat dissipation apertures arranged in a rectangular array for gas exchange and heat dissipation.
8. The dual power supply switching box according to claim 1, further comprising an audible and visual alarm device for alarming in case of abnormal conditions.
9. The dual power switching cabinet of claim 1, further comprising an illumination device for auxiliary illumination.
10. The dual power switching box of claim 1, further comprising a dehumidifying device for monitoring humidity inside the box body, and performing rapid dehumidification when the humidity is greater than a preset value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211281653.2A CN115441578B (en) | 2022-10-19 | 2022-10-19 | Dual-power switching box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211281653.2A CN115441578B (en) | 2022-10-19 | 2022-10-19 | Dual-power switching box |
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| CN115441578B CN115441578B (en) | 2024-10-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571915A (en) * | 2019-09-19 | 2019-12-13 | 浙江工业大学 | An intelligent energy storage power supply vehicle uninterruptible power supply system device and control method thereof |
| CN111769495A (en) * | 2020-07-08 | 2020-10-13 | 广东电网有限责任公司清远供电局 | Portable power supply junction box |
| CN214013943U (en) * | 2020-12-10 | 2021-08-20 | 云南电网有限责任公司怒江供电局 | Portable ATS power switching device |
| CN114744433A (en) * | 2022-01-26 | 2022-07-12 | 国网浙江省电力有限公司金华供电公司 | A fast switching device for mobile energy storage emergency power supply |
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- 2022-10-19 CN CN202211281653.2A patent/CN115441578B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571915A (en) * | 2019-09-19 | 2019-12-13 | 浙江工业大学 | An intelligent energy storage power supply vehicle uninterruptible power supply system device and control method thereof |
| CN111769495A (en) * | 2020-07-08 | 2020-10-13 | 广东电网有限责任公司清远供电局 | Portable power supply junction box |
| CN214013943U (en) * | 2020-12-10 | 2021-08-20 | 云南电网有限责任公司怒江供电局 | Portable ATS power switching device |
| CN114744433A (en) * | 2022-01-26 | 2022-07-12 | 国网浙江省电力有限公司金华供电公司 | A fast switching device for mobile energy storage emergency power supply |
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| CN115441578B (en) | 2024-10-11 |
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