CN219618930U - Charging pile capacity expansion equipment and charging system - Google Patents
Charging pile capacity expansion equipment and charging system Download PDFInfo
- Publication number
- CN219618930U CN219618930U CN202321075154.8U CN202321075154U CN219618930U CN 219618930 U CN219618930 U CN 219618930U CN 202321075154 U CN202321075154 U CN 202321075154U CN 219618930 U CN219618930 U CN 219618930U
- Authority
- CN
- China
- Prior art keywords
- power
- charging
- charging pile
- unit
- capacity expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a charging pile capacity expansion device and a charging system, wherein a plurality of power input interfaces, a power switching unit and a plurality of power output interfaces are arranged; the power switching unit includes: the power switch modules are connected in parallel; one end of each power input interface is respectively connected to one charging pile, and the other end of each power input interface is respectively connected with the input end of one power switch module in the power switching unit; one end of each power output interface is respectively connected with the output ends of one or more power switch modules in the power switching unit; the other end of each power output interface is used for being connected with the charging unit. According to the application, the power switching switch modules in the power switching unit are connected in parallel to control the charging power flow output by the charging pile, so that the capacity expansion equipment of the charging pile can meet sporadic user requirements for quick energy compensation and high-power charging requirements of the electric vehicle by expanding the laid charging pile, and the waste of charging electric energy is avoided.
Description
Technical Field
The application relates to the technical field of capacity expansion of charging piles, in particular to capacity expansion equipment of charging piles and a charging system.
Background
Along with the promotion of people's environmental awareness, electric automobile's volume of keeping increases gradually, and private car's electric automobile demand of charging also expands gradually, has appeared the difficult problem of private car charging. And a destination charging scenario solution facing the private car charging demand plays a key role in solving the problem of difficult private car charging.
At present, considering the characteristics of long parking time, low requirement on the extreme value of charging power, high requirement on the number of charging piles and limited total power of the scene of a destination charging scene, a destination charging scene solution usually selects a plurality of alternating current charging piles or low-power direct current chargers so as to meet the charging requirements of more parking spaces under the condition of limited capacity total. And for the demand that a few users need quick energy supplement sporadically, the high-power direct-current charger arranged on part of the parking spaces can be adopted at present to meet the quick energy supplement demand of the users.
However, using a portion of the parking space to arrange a high-power direct current charging opportunity results in a reduction in the number of charging piles, and redundant waste of charging power is caused for a period of time when there is no rapid energy replenishment requirement for a moment.
Disclosure of Invention
The application aims to overcome the defects in the prior art, and provides a charging pile capacity expansion device and a charging system, so as to solve the problems of reduced number of charging piles and redundant waste of charging power in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows:
in a first aspect, an embodiment of the present application provides a capacity expansion device for a charging pile, including: a plurality of power input interfaces, a power switching unit and a plurality of power output interfaces;
the power switching unit includes: a plurality of power switch modules connected in parallel;
one end of each power input interface is respectively connected to one charging pile, and the other end of each power input interface is respectively connected with the input end of one power switch module in the power switching unit;
one end of each power output interface is respectively connected with the output end of one or more power switch modules in the power switching unit;
the other end of each power output interface is used for being connected with a charging unit.
Optionally, the charging pile capacity expansion device further includes: a power control unit;
the power control unit is connected with each charging pile and each power switch module in the power switching unit;
The power control unit is used for collecting the charging state and the residual capacity of each charging pile, sending a first control signal to the power switching unit and sending a second control signal to the charging pile to be used.
Optionally, the power switching unit further includes: a metering module;
the output end of each power switch module is connected with one end of each power output interface through the metering module and is electrically connected with each charging pile;
each power switch module is used for selectively controlling the charging power flow from each charging pile to be used according to the first control signal and sending the charging power flow to the metering module;
the metering module is used for metering the charging power flow and outputting the charging power flow to the plurality of power output interfaces.
Optionally, the metering module is further configured to monitor the voltage and current of the charging power flow, and output a monitoring signal to the power control unit.
Optionally, the power switch module includes any one of the following: contactors, relays, insulated gate bipolar transistors or thyristors.
Optionally, the charging pile capacity expansion device further includes: a man-machine interaction unit;
The man-machine interaction unit is in communication connection with the power control unit, and the power control unit is in communication connection with the charging unit;
the power control unit is also used for receiving the interaction control signal sent by the man-machine interaction unit, receiving the vehicle charging state sent by the charging unit and sending the vehicle charging state to the man-machine interaction unit. Optionally, the man-machine interaction unit includes: operating a button;
and the man-machine interaction unit is used for sending the interaction control signal to the power control unit according to the state of the operation button.
Optionally, the charging pile capacity expansion device further includes: a power supply unit;
the power supply unit is electrically connected with each power switch module in the power switch unit respectively and is used for supplying power to each power switch module.
In a second aspect, the present application provides a charging system comprising: a plurality of charging posts, a charging unit and a plurality of charging post capacity expansion devices according to the first aspect of the claims.
Optionally, each power switch module of the power switch unit in each charging pile capacity expansion device is electrically connected with each charging pile through a power cable.
The beneficial effects of the application are as follows: the application provides charging pile capacity expansion equipment which comprises a power control unit, a power switching unit and a charging unit, wherein the power control unit is in communication connection with each charging pile and is connected with the power switching unit, the power control unit is used for collecting the charging state and the residual capacity of each charging pile and sending a first control signal to the power switching unit and a second control signal to a charging pile to be used, the power switching unit is electrically connected with each charging pile and is electrically connected with the charging unit, the power switching unit is used for selectively controlling and metering the power flow output by the charging pile to be used and outputting the charging power flow to the charging unit, and the charging unit is used for outputting the charging power flow to a charging vehicle. The power control unit is used for controlling the output of each charging pile and the selection control and metering of the power switching unit, so that the charging power flows of a plurality of charging piles can be selected and combined and output, the laid charging piles are expanded, the electric vehicle needing quick energy supplementing is charged, the high-power charging requirement of the electric vehicle is met, the reduction of the number of the charging piles caused by using part of parking spaces to arrange high-power direct current chargers is avoided, and the redundant waste of the charging power caused by a period of time without the quick energy supplementing requirement can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an application scenario of a capacity expansion device for a charging pile according to an embodiment of the present application;
fig. 2 is a schematic diagram of a connection manner between a charging pile capacity expansion device and a charging pile according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a capacity expansion device for a charging pile according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a power control unit according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a metering module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a man-machine interaction unit according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power supply unit according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that the term "comprising" will be used in embodiments of the application to indicate the presence of the features stated hereafter, but not to exclude the addition of other features.
In the description of the present application, it should be noted that the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the prior art, as the holding amount of the electric automobile gradually increases, the charging demand of the electric automobile of the private electric automobile gradually expands, and the charging scene of the private electric automobile has the characteristics that the relative parking time of the automobile in the scene is longer, most of the automobiles have weak pursuits on the extreme value of the charging power, the quantity demand on the charging piles is large, and the total power of the scene is relatively small. At present, aiming at the characteristics of the above scenes, a destination charging scene usually selects a plurality of alternating current charging piles or low-power direct current chargers to meet the charging demands of more parking spaces under the condition of limited capacity total quantity. And for sporadic rapid energy supplementing demands, high-power direct-current chargers can be arranged on partial parking spaces at present to meet the rapid energy supplementing demands of partial users.
However, arranging high-power direct current chargers in partial parking spaces can lead to reduction of the number of charging piles, and redundant waste of charging power can be caused in a period when rapid energy supplementing needs are temporarily absent.
In addition, for sporadic rapid energy supplementing demands, the centralized layout of one-to-many charging stacks can be adopted to realize the retrieval and distribution of the power of the charging stacks at present; or the old charging piles which are laid out are subjected to technical upgrading to improve the charging power.
The adoption of the centralized layout of one-to-many charging piles can lead to the increase of cable cost, the increase of construction cost, the limitation of space layout or waste, and the relatively occupied volume of the charging piles is large, and the noise is large; the technical upgrade of the laid-out old charging piles results in huge costs and great economic pressure on operators.
In view of the above problems, the present application provides a charging pile capacity expansion device 1 and a charging system, where the charging pile capacity expansion device 1 is connected with each charging pile and determines the charging condition of each charging pile, so that one or more charging piles can be selected to charge a vehicle together, thereby realizing rapid energy supplement of the vehicle.
Fig. 1 is a schematic view of an application scenario of a charging pile capacity expansion device 1 provided in an embodiment of the present application. As shown in fig. 1, a field where a charging pile capacity-expanding device 1 is located is provided with a plurality of built charging piles, each charging pile corresponds to a charging parking space, and an electric automobile can be parked on the charging parking space to be charged by connecting a charging gun. The application provides a plurality of charging pile capacity expansion devices 1, the number of which is greater than or equal to two. Each charging pile capacity expansion device 1 is communicated with a plurality of charging piles, and the charging pile capacity expansion devices can be installed on any charging pile or on a wall, and as shown in fig. 1, one implementation mode that the charging pile capacity expansion devices 1 are hung on the wall far away from one side of the charging pile is provided. When the electric automobile does not need quick energy supplementing, a driver can stop the electric automobile on an original parking space and charge by using an original charging pile. When part of electric vehicles need quick energy compensation, a driver can stop the vehicle at a parking space beside the charging pile capacity expansion equipment 1, and the charging pile capacity expansion equipment 1 is used for quick energy compensation of the electric vehicles. When original charging pile is all occupied, the driver can also park the electric automobile that does not have quick energy supplementing demand on the parking stall of charging pile expansion equipment 1 and connect charging equipment to charge. It is worth to say that, the charging pile capacity expansion device 1 can obtain the power requirement of the electric automobile through accessing the electric automobile, output corresponding charging power flow, and also can obtain the user requirement, and output the charging power flow which is equal to or smaller than the power requirement of the electric automobile. When the charging pile and the charging pile capacity-expanding equipment 1 are used in a scene, the charging pile capacity-expanding equipment 1 can display the number of the current queuing vehicles for a user.
Fig. 2 is a schematic diagram of a connection manner between a charging pile capacity expansion device 1 and a charging pile according to an embodiment of the present application. As shown in fig. 2, each charging pile capacity expansion device 1 is electrically and communicatively connected with a plurality of charging piles, and each charging pile capacity expansion device 1 is independent from each other. The capacity expansion device 1 of the charging pile acquires the power flow output by at least one connected charging pile through the mode of wiring with the pile ends of the plurality of charging piles, so that the power flow which is larger than or equal to the power flow which can be provided by a single original charging pile can be provided, and the power output of each charging pile can be controlled through the mode of communication connection with the plurality of charging piles. Specifically, when the charging pile capacity expansion device 1 is connected to an electric vehicle with a rapid energy supplementing requirement and receives an opening signal, after the power requirement of the electric vehicle is acquired, the charging power flow output by the charging pile is acquired according to the number of the charging piles which are judged to be connected to perform energy supplementing on the electric vehicle. It should be noted that the communication connection may be a bluetooth wireless connection, or may be a wired connection through a twisted pair cable, a coaxial cable, or the like, which is not limited herein.
Fig. 3 is a schematic structural view of a pile-on-charge capacity expansion device 1. As shown in fig. 3, the charging pile capacity expansion device 1 includes a plurality of power input interfaces, a power switching unit 10, and a plurality of power output interfaces. The charging pile capacity expansion device 1 will be described in detail.
Optionally, the power switching unit 10 includes: the power switch modules are connected in parallel.
Alternatively, the number of the plurality of power switch modules may be identical to the number of the charging pile capacity expansion devices 1. For example, a total of 10 charging piles in the charging scene can be used for capacity expansion, and the current charging pile capacity expansion device 1 can comprise 10 power switch modules corresponding to the charging piles.
Optionally, the power switch module can control the charging power flow sent by the charging pile, such as controlling the on-off and the size of the charging power flow.
Optionally, one end of each power input interface is connected to one charging pile, and the other end of each power input interface is connected to an input end of one power switch module in the power switch unit 10.
Optionally, the charging pile capacity expansion device 1 is connected with each charging pile through a cable, and the power input interface may be a cable interface. It should be noted that the number of power input interfaces may be greater than the number of charging posts in the charging scenario, or may be equal to or less than the number of charging posts in the charging scenario. If the number of the power input interfaces is greater than the number of the charging piles, the remaining power input interfaces can be used as standby power input interfaces. If the number of the power input interfaces is smaller than the number of the charging piles, selecting the nearest charging pile to be connected when the charging pile capacity-expanding equipment 1 is used.
Alternatively, each power input interface may be in one-to-one correspondence with a power switch module. When the power input interface is connected to the charging pile, the input end of the power switch module can receive the charging power flow.
Optionally, one end of each power output interface is connected to an output end of one or more power switch modules in the power switching unit 10.
Alternatively, the number of power output interfaces may be smaller than the number of power input interfaces that are connected, i.e. the number of power output interfaces may be smaller than the power switch modules corresponding to the power connection interfaces. Because each power switch module is connected in parallel to collect and output the charging power flow to one or more power output interfaces, the purpose of capacity expansion can be achieved.
Alternatively, the power output interface and the charging unit may be connected by a cable, and the power output interface may be a cable interface. The power output interface is used for receiving the charging power flow controlled by the power switch module.
Optionally, the other end of each power output interface is used for being connected with the charging unit.
Alternatively, the charging unit may be a charging gun. The charging gun can be used for charging the electric automobile. The interface of the charging gun and the electric automobile corresponds, and has a special protocol, so that the charging gun can be inserted into the electric automobile to supply power for the electric automobile, and the charging power requirement of the electric automobile is acquired.
Alternatively, the number of charging guns may be the same as the number of power output interfaces. The power output interface is used for sending the charging power flow controlled by the power switch module to the charging unit.
In this embodiment, the capacity expansion device of the charging pile includes a plurality of power input interfaces, a power switching unit and a plurality of power output interfaces, where the power switching unit includes: the power switch modules are connected in parallel, one end of each power input interface is connected to one charging pile, the other end of each power input interface is connected with the input end of one power switch module in the power switching unit, one end of each power output interface is connected with the output end of one or more power switch modules in the power switching unit, and the other end of each power output interface is used for being connected with the charging unit. The power input interface is used for controlling the charging power flow received by the power input interface from the charging piles, the charging power flow after the control is output to the charging unit through the power output interface, the charging power flows of the charging piles can be selected to be combined and output, the laid charging piles are expanded, the electric vehicle needing quick energy supplementing is charged, the high-power charging requirement of the electric vehicle is met, the reduction of the layout quantity of the charging piles caused by the arrangement of high-power direct-current chargers by using partial parking spaces is avoided, and the redundant waste of the charging power caused by the period of no quick energy supplementing requirement temporarily can be avoided.
Fig. 4 is a schematic diagram of the structure of the power control unit 20. The connection relation of the power control unit 20 will be described in detail with reference to fig. 4.
Optionally, the charging pile capacity expansion device 1 further includes: and a power control unit 20.
Alternatively, the power control unit 20 may include a processor. Wherein the processor may process information and data related to the request. In some embodiments, a processor may include one or more processing cores. By way of example only, the processor may include a central processing unit, an application specific integrated circuit, a controller, or the like, or any combination thereof.
Alternatively, the power control unit 20 is connected to each charging pile and to each power switch module in the power switching unit 10.
Optionally, the power control unit 20 is configured to collect the charging status and the remaining capacity of each charging pile, and send a first control signal to the power switching unit 10 and a second control signal to the charging pile to be used.
Optionally, the power control list collects the charging state and the residual capacity of each charging pile, so that the usable state of each charging pile can be judged, and the usable charging pile is used as the charging pile to be used. The remaining capacity of the charging pile may refer to the remaining power capacity of the charging pile. When the power control unit 20 confirms that the charging pile can be used, then when an electric car is connected to the current charging pile capacity expansion device 1, a second control signal is sent to the charging pile to be used according to the charging requirement.
Alternatively, the first control signal may control the plurality of power switch modules in the power switching unit 10 to switch the charging power flow sent by the charging pile into the total power flow, and to deliver the total power flow to the power output interface. Wherein the total power flow may be the actual output power flow. The first control signal may be a power value sent by the power control unit 20 to each power switch module in the power switching unit 10, so that each power switch module selectively controls a charging power flow sent by the charging pile through the power input interface according to the power value, or the first control signal may be a real-time component action command sent by the power control unit 20 to each power switch module according to a real-time situation, so that each power switch module adjusts the charging power flow in real time according to the component action command, and the actual power of the charging power flow output by each power switch module is adjusted according to the actual situation.
Alternatively, the power control unit 20 may collect the charge state and the remaining capacity of each charging post by being communicatively connected to each charging post. The charging state may be a state that whether the charging pile is charging the electric vehicle on the corresponding parking space or cannot be used due to damage. The remaining capacity may be electric energy that can be used by the charging pile capacity expansion device 1. In particular, the electrical energy may be a voltage or power of a charging power flow, etc. It should be noted that the charging pile is already built in the charging scene, and the power of the charging pile is not limited herein.
Alternatively, the power control unit 20 may transmit the second control signal to the charging piles to be used by being communicatively connected with each charging pile. Specifically, the charging pile capacity expansion device 1 is in communication connection with a plurality of charging piles, when the charging pile capacity expansion device 1 obtains the power demand information of the accessed electric automobile, the power control unit 20 can judge the charging pile to be used according to the real-time power demand of the electric automobile, send a second control signal to the charging pile to be used, and simultaneously control the plurality of charging piles to start outputting electric energy to the power input interface.
Alternatively, the power control unit 20 may be connected to each power switch module, and send a first control signal to each power switch module to control the charging power flow.
Optionally, each power switch module may select and control the on-off and power of the charging power flow of each charging pile connected to the power switch module, and may detect the charging power flow subjected to power adjustment in real time, and send the detection result to the power control unit 20. Specifically, the power switching unit 10 receives the first control signal sent by the power control unit 20, selects and controls a charging power flow corresponding to a required charging pile according to the first control signal, and measures the charging power flow after control to obtain actual output power.
Specifically, when the user uses the electric pile capacity expansion device 1 to charge the electric automobile, the electric pile capacity expansion device 1 controls a certain number of electric piles according to requirements to enable the electric piles to output charging power flows, the corresponding power input interfaces selectively control the charging power flows through the power switch modules and then output the charging power flows to the power output interfaces, and the power output interfaces send the controlled charging power flows to the charging unit and enable the charging unit to perform a charging process. In this process, as a possible implementation manner, when the user performs charging using the pile extension apparatus 1, the power control unit 20 detects that there is an idle pile, and the pile extension apparatus 1 performs charging according to the above steps. As another possible implementation manner, when the user performs charging using the charging pile capacity expansion device 1, the power control unit 20 may perform according to a preset rule when detecting that no charging pile is idle to provide the required amount of charging power flow.
Alternatively, the power control unit 20 may have a plurality of preset rules set thereon. As a first possible implementation manner, the preset rule may be to reduce the usage amount of the charging power flow of at least one other charging pile when the charging pile capacity-expanding device 1 detects that there is no idle charging pile, thereby reducing the output of the other charging pile capacity-expanding device 1, so that the current charging pile capacity-expanding device 1 may obtain the remaining charging pile charging power flow to charge the electric automobile. Illustratively, there are six charging piles, namely charging pile a, charging pile B, charging pile c, charging pile d, charging pile e and charging pile f, in the current scene, and two charging piles, namely charging pile capacity expansion device 1A and charging pile capacity expansion device 1B, are arranged. The charging piles are of the same type and can provide 30 kilowatt power flow, and the charging pile capacity expansion device 1A is connected with an electric automobile with the requirement of 150 kilowatts, so that all the charging piles are mobilized to rapidly supplement energy for the electric automobile. At this time, the electric vehicle that needs quick energy replenishment is connected to the electric pile capacity expansion device 1B, and then according to preset rules, the number of electric piles that the electric pile capacity expansion device 1A calls can be reduced, for example, charging pile a is selected, charging pile B and charging pile c perform charging power flow output, charging pile d is selected, and charging pile e and charging pile f provide charging electric energy for the electric vehicle connected to the electric pile capacity expansion device 1B.
As a second possible implementation manner, the preset rule may be to dynamically stop the output of the charging power flow of at least one other charging pile capacity-expanding device 1 when the charging pile capacity-expanding device 1 detects that there is no free charging pile, so that the current charging pile capacity-expanding device 1 may use the charging pile used by the stopped charging pile capacity-expanding device 1, and when the current electric automobile is full of electric power, continue to start the charging process of the stopped charging pile capacity-expanding device 1. Illustratively, there are six charging piles, namely charging pile a, charging pile B, charging pile c, charging pile d, charging pile e and charging pile f, in the current scene, and two charging piles, namely charging pile capacity expansion device 1A and charging pile capacity expansion device 1B, are arranged. The charging piles are of the same type and can provide 30 kilowatt power flow, and the charging pile capacity expansion device 1A is connected with an electric automobile with the requirement of 150 kilowatts, so that all the charging piles are mobilized to rapidly supplement energy for the electric automobile. At this time, the charging pile capacity expansion device 1B is connected to an electric vehicle needing quick energy compensation, and according to a preset rule, the charging action of the charging pile capacity expansion device 1A can be stopped, so that the charging pile capacity expansion device 1B can use all charging piles to supply power to the current electric vehicle. When the current electric automobile is full of electricity, the charging action of the charging pile capacity expansion equipment 1A is continuously started.
As a third possible embodiment, when the charging post and the charging post capacity expansion device 1 are all occupied, the vehicle to be charged may be queued up, and the user makes a queuing reservation through the charging post capacity expansion device 1.
In this embodiment, the capacity expansion device of the charging pile further includes a power control unit, where the power control unit is connected with each charging pile and each power switch module in the power switch unit, and the power control unit is configured to collect a charging state and a remaining capacity of each charging pile, send a first control signal to the power switch unit, and send a second control signal to the charging pile to be used. The charging state and the residual capacity of the charging piles are collected through the power control unit, and each power switch module is controlled to respond to the charging power flow, so that the charging power flow of each charging pile can be distributed better, and the charging power flow utilization is maximized.
Fig. 5 is a schematic structural diagram of a metering module, and the connection relationship of the metering module is described in detail below with reference to fig. 5.
Optionally, the power switching unit 10 further includes: and a metering module.
Alternatively, the metering module may be an electric meter or other device capable of metering electric quantity.
Optionally, the output end of each power switch module is connected with one end of each power output interface through the metering module, and is electrically connected with each charging pile. Alternatively, the number of metering modules may correspond to the number of power output interfaces.
Optionally, when the capacity expansion device 1 of the charging pile works, the power input interface receives the charging power flow output by the charging pile, and sends the charging power flow to each power switch module, after each power switch module performs switch control on the received charging power flow, the power flows are combined and sent to the metering module, and after the metering module meters the received charging power flow, the power flow is sent to the power output interface. The power output interface can send the expanded charging power flow to the charging unit so as to charge the electric automobile.
Optionally, each power switch module is used for selectively controlling the charging power flow from each charging pile to be used according to the first control signal, and sending the charging power flow to the metering module.
Optionally, after the charging unit connected with the power output interface senses that an electric automobile is connected, the power demand signal of the electric automobile is obtained and then sent to the power control unit 20, the power control unit 20 determines a charging pile to be used according to the power demand signal of the electric automobile and simultaneously combines the collected charging state and residual capacity of the charging pile, the power control unit 20 sends a second control signal to the charging pile to be used to enable the charging pile to be used to start outputting charging power flow, and sends a first control signal to a power switch module in the power switching unit 10 to enable the power switch module to start selectively controlling the received charging power flow. The charging power flow at this time may be an actual output power, and the actual output power may be less than or equal to the charging power flow output by the charging pile.
Optionally, the metering module is configured to meter the charging power flow and output the charging power flow to the plurality of power output interfaces.
Optionally, the metering module may be electrically connected to each power switch module and the charging unit, respectively, for metering the charging power flow selectively controlled by the power switch module, where the charging power flow may be the actual output power. It is noted that the metering modules may not consume electrical energy, and the charging power flow power emitted from each power switching module to the metering modules and the charging power flow power emitted from the metering modules to the power output interface may be the same.
In this embodiment, the power switching unit further includes: the output end of each power switch module is connected with one end of each power output interface through the metering module and is electrically connected with each charging pile, each power switch module is used for selectively controlling the charging power flow from each charging pile to be used according to a first control signal and sending the charging power flow to the metering module, and the metering module is used for metering the charging power flow and outputting the charging power flow to the plurality of power output interfaces. The metering module meters the charging power flow which is selectively controlled by the power switch module and then is output to the power output unit, so that the charging efficiency is improved, and the requirement of quick energy supplement of partial users is met.
Optionally, the metering module is further configured to monitor the voltage and current of the charging power flow, and output a monitoring signal to the power control unit 20.
Optionally, the metering module is communicatively connected to the power control unit 20, and sends the monitoring signal to the power control unit 20 when a voltage current in the charging power flow through the power switching module is detected.
Alternatively, the power control unit 20 may receive the monitoring signal and send the monitoring signal to the human-computer interaction unit 30 for display, or the power control unit 20 may determine the actual remaining charging time according to the received detection signal and send the information to the human-computer interaction unit 30 for display.
In this embodiment, the metering module is further configured to monitor a voltage and a current of the charging power flow, and output a monitoring signal to the power control unit. The voltage and current in the charging power flow are monitored through the metering module, so that a user can acquire actual charging power and charging residual duration, the sporadic user requirement of quick energy compensation is met, and redundant waste of electric energy is avoided.
Optionally, the power switch module includes any one of the following: contactors, relays, insulated gate bipolar transistors or thyristors.
Optionally, the contactor can cut off the alternating current or direct current loop fast, and can make and break frequently, and the relay can play automatically regulated and safety protection's effect, and insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) can play the switching role, and the thyristor can realize the selection control function.
Optionally, the power switch module may obtain, select and control the charging power flow through including but not limited to a contactor, a relay, an insulated gate bipolar transistor or a thyristor, so that the output charging power flow meets the energy supplementing requirement of the connected electric automobile, and meanwhile, the safety of the integral charging pile capacity expansion device 1 is ensured.
In this embodiment, the power switch module includes any one of the following: contactors, relays, insulated gate bipolar transistors or thyristors. The charging power flow is selectively controlled through each element, so that the safety of the integral charging pile capacity expansion equipment is ensured while the energy supplementing requirement of the connected electric automobile is met.
Fig. 6 is a schematic structural diagram of the man-machine interaction unit 30, and the connection structure of the man-machine interaction unit 30 is further described with reference to fig. 6.
Optionally, the man-machine interaction unit 30 is communicatively connected to the power control unit 20, and the power control unit 20 is communicatively connected to the charging unit.
Optionally, the power control unit 20 is further configured to receive the interaction control signal sent by the man-machine interaction unit 30, and receive the vehicle charging state sent by the charging unit and send the vehicle charging state to the man-machine interaction unit 30.
Optionally, the power control unit 20 is in communication connection with the charging unit, and when the electric automobile is connected to the charging unit, the charging unit can obtain power requirement information of the electric automobile and send the requirement information to the power control unit 20, and the power control unit 20 can send the requirement information to the manual interaction unit for display.
Optionally, the power control unit 20 may send the received real-time charging states of the charging piles, the actual output power measured by the power switching unit 10, and the vehicle charging states sent by the charging unit to the man-machine interaction unit 30, so that the man-machine interaction unit 30 may display the real-time charging states of the charging piles for the user, and the actual output power and the vehicle charging states of the charging pile capacity expansion device 1. It should be noted that the content displayed by the man-machine interaction unit 30 may be preset, including, but not limited to, displaying the real-time charging state of each charging pile, the actual output power of the charging pile capacity expansion device 1 and the charging state of the vehicle.
For example, the man-machine interaction unit 30 may be provided with a display screen, where the display screen displays the real-time charging state of each charging pile, the actual output power of the charging pile capacity-expanding device 1 and the charging state of the vehicle, and may also display the charging state, the charging remaining time and the user charging waiting time of other charging pile capacity-expanding devices 1, and may also display weather information, such as the current temperature and humidity, air quality, and the like.
Optionally, the man-machine interaction unit 30 may acquire the start-stop requirement of the user, and send the requirement information to the power control unit 20, so as to control the start-stop of the charging pile capacity expansion device 1.
Alternatively, the user may perform operations such as selection through the man-machine interaction unit 30. For example, the man-machine interaction unit 30 may include a liquid crystal touch display, and the user may select the state and information of the charging pile capacity expansion device 1 to be checked by touching.
In this embodiment, the capacity expansion device of the charging pile further includes a man-machine interaction unit, the man-machine interaction unit is in communication connection with the power control unit, the power control unit is in communication connection with the charging unit, and the power control unit is further configured to receive an interaction control signal sent by the man-machine interaction unit, and receive a charging state of the vehicle sent by the charging unit and send the charging state to the man-machine interaction unit. The man-machine interaction unit is used for displaying signals received by the power control unit and information of other charging pile capacity expansion equipment, so that a user can check the state of the charging pile capacity expansion equipment in a scene in real time, judge whether the charging pile capacity expansion equipment is charged or not, avoid time waste of the user and improve charging efficiency.
As an alternative embodiment, the man-machine interaction unit 30 includes: the button is operated.
Optionally, the man-machine interaction unit 30 is configured to send an interaction control signal to the power control unit 20 according to the state of the operation button.
Alternatively, the operation button may be disposed on the housing of the man-machine interaction unit 30, or may be disposed at another position of the charging pile capacity expansion device 1. The operation buttons may include two gears on and off, and may include three gears on, standby, and off.
Alternatively, the operating buttons may limit the population of operations. For example, in order to secure the use safety of the charging pile capacity expansion device 1, it is necessary to confirm that only a worker can operate it. Specifically, the operating population can be limited by fingerprints, passwords, and the like.
Alternatively, the interactive control signal may include an on signal, a standby signal, and an off signal.
Specifically, when the operation button is in the on gear, the man-machine interaction unit 30 sends an on signal to the power control unit 20, so that the charging pile capacity expansion device 1 can start to work. When the operation button is in a standby state, the man-machine interaction unit 30 sends a standby signal to the power control unit 20, and the power control unit 20 can collect a charging pile signal and a charging unit signal according to the standby signal and send the signals to the man-machine interaction unit 30 for display. When the operation button is in the off state, the man-machine interaction unit 30 sends an off signal to the power control unit 20, so that the charging pile capacity expansion device 1 stops working.
Alternatively, the user may control the man-machine interaction unit 30 through bluetooth to respond according to the instruction.
Optionally, the user may also issue a command to the charging pile capacity expansion device 1 on the cloud platform by scanning a two-dimensional code that is matched with the charging pile capacity expansion device 1. The cloud platform can be built in advance and can be in wireless communication with the charging pile capacity expansion device 1 in the scene. And the representation form of the two-dimensional code is not limited. The two-dimensional code may be displayed on a man-machine interaction interface, or may be posted on the corresponding charging pile capacity-expanding device 1.
It should be noted that, in the present embodiment, the operation mode of the charging pile capacity expansion device 1 by the user through the man-machine interaction unit 30 is not limited.
In this embodiment, the man-machine interaction unit includes an operation button, and the man-machine interaction unit is configured to send an interaction control signal to the power control unit according to a state of the operation button. The real-time state of the charging pile capacity expansion equipment can be controlled through the operation button, the safety of the charging pile capacity expansion equipment is improved, the electric energy waste is avoided, and the charging efficiency is finally improved.
Fig. 7 is a schematic diagram of the structure of a power supply unit 40. The connection relation of the power supply unit 40 will be described in detail with reference to fig. 7.
Optionally, the charging pile capacity expansion device 1 further includes: a power supply unit 40.
Optionally, the power supply unit 40 is electrically connected to each power switch module in the power switch unit 10, for supplying power to each power switch module.
Alternatively, the power supply unit 40 may be electrically connected to the power control unit 20 and the man-machine interaction unit 30, respectively, for supplying power to the power control unit 20 and the man-machine interaction unit 30.
The power supply unit 40 may be an auxiliary power supply, for example, and may be used in combination with other power supplies. For example, the human-computer interaction component can be provided with a storage battery for supplying power.
In this embodiment, the capacity expansion device of the charging pile further includes a power supply unit, where the power supply unit is electrically connected to the power control unit, the power switching unit, and the man-machine interaction unit, respectively, and is configured to supply power to the power control unit, the power switching unit, and the man-machine interaction unit. The power supply unit supplies power to the power control unit, the power switching unit and the man-machine interaction unit, so that the power control unit, the power switching unit and the man-machine interaction unit can work normally, and the capacity expansion equipment of the charging pile can work normally, so that the power consumption requirement of a user is met.
The embodiment of the application also provides a charging system which comprises a plurality of charging piles, a plurality of charging units and the charging pile capacity expansion equipment 1 in the previous embodiment.
Optionally, the power control unit 20 in each charging pile capacity expansion device 1 is in communication connection with each charging pile, so that the power control unit 20 in each charging pile capacity expansion device 1 can obtain the charging state and the residual capacity of the charging pile, and according to the obtained charging state and residual capacity of the charging pile and the obtained charging power requirement collected by the charging unit, the required energy supply quantity of the charging pile can be judged, and the actual power output is selectively controlled by controlling the power switching unit 10, so that the charging unit can supply power to the electric automobile with the rapid energy supplementing requirement.
Alternatively, the power switching units 10 in the capacity expanding devices 1 of the charging piles are electrically connected with the charging piles through power cables.
Alternatively, the power cable may refer to a power cable, and its specification and length are set according to actual requirements. It is worth noting that the specification of the power cable may be higher than that obtained by maximum power calculation, so as to ensure the safety of electricity consumption and avoid fire caused by overload of the cable.
Based on the same conception, the embodiment of the application also provides a charging system comprising the charging pile capacity expansion device with all the units and the charging pile, and because the principle of solving the problem of the charging pile capacity expansion device in the embodiment of the application is similar to that of the charging pile capacity expansion device in the embodiment of the application, the charging pile capacity expansion device in the charging system can refer to the device, and the repetition is omitted.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. Fill electric pile dilatation equipment, characterized by includes: a plurality of power input interfaces, a power switching unit and a plurality of power output interfaces;
the power switching unit includes: a plurality of power switch modules connected in parallel;
one end of each power input interface is respectively connected to one charging pile, and the other end of each power input interface is respectively connected with the input end of one power switch module in the power switching unit;
one end of each power output interface is respectively connected with the output end of one or more power switch modules in the power switching unit;
the other end of each power output interface is used for being connected with a charging unit.
2. The charging pile capacity expansion device according to claim 1, further comprising: a power control unit;
The power control unit is connected with each charging pile and each power switch module in the power switching unit;
the power control unit is used for collecting the charging state and the residual capacity of each charging pile, sending a first control signal to the power switching unit and sending a second control signal to the charging pile to be used.
3. The charging pile capacity expansion device according to claim 2, wherein the power switching unit further comprises: a metering module;
the output end of each power switch module is connected with one end of each power output interface through the metering module and is electrically connected with each charging pile;
each power switch module is used for selectively controlling the charging power flow from each charging pile to be used according to the first control signal and sending the charging power flow to the metering module;
the metering module is used for metering the charging power flow and outputting the charging power flow to the plurality of power output interfaces.
4. A charging pile capacity expansion device as claimed in claim 3, in which the metering module is further adapted to monitor the charging power flow for voltage and current and to output a monitoring signal to the power control unit.
5. The charging pile capacity expansion device of claim 1, wherein the power switch module comprises any one of the following: contactors, relays, insulated gate bipolar transistors or thyristors.
6. The charging pile capacity expansion device according to claim 2, further comprising: a man-machine interaction unit;
the man-machine interaction unit is in communication connection with the power control unit, and the power control unit is in communication connection with the charging unit;
the power control unit is also used for receiving the interaction control signal sent by the man-machine interaction unit, receiving the vehicle charging state sent by the charging unit and sending the vehicle charging state to the man-machine interaction unit.
7. The capacity expansion device of claim 6, wherein the man-machine interaction unit comprises: operating a button;
and the man-machine interaction unit is used for sending the interaction control signal to the power control unit according to the state of the operation button.
8. The charging pile capacity expansion device according to claim 1, further comprising: a power supply unit;
the power supply unit is electrically connected with each power switch module in the power switch unit respectively and is used for supplying power to each power switch module.
9. A charging system, the charging system comprising: a plurality of charging piles, a charging unit, and a plurality of charging pile capacity expanding devices as claimed in any one of claims 1 to 8.
10. The charging system of claim 9, wherein each power switch module of the power switching unit in each charging pile capacity expansion device is electrically connected to each charging pile through a power cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075154.8U CN219618930U (en) | 2023-04-28 | 2023-04-28 | Charging pile capacity expansion equipment and charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075154.8U CN219618930U (en) | 2023-04-28 | 2023-04-28 | Charging pile capacity expansion equipment and charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219618930U true CN219618930U (en) | 2023-09-01 |
Family
ID=87771696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321075154.8U Active CN219618930U (en) | 2023-04-28 | 2023-04-28 | Charging pile capacity expansion equipment and charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219618930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117411000A (en) * | 2023-09-25 | 2024-01-16 | 国网上海市电力公司 | Control device and control method for charging execution system |
-
2023
- 2023-04-28 CN CN202321075154.8U patent/CN219618930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117411000A (en) * | 2023-09-25 | 2024-01-16 | 国网上海市电力公司 | Control device and control method for charging execution system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101437019B1 (en) | Power feed system for electric vehicle | |
| CN108258761B (en) | Charging and discharging control method and electric automobile | |
| CN111201691B (en) | Mobile charging unit, in particular for an electric vehicle, and management system for delivering electric energy on request | |
| CN108407641B (en) | Electric automobile and intelligent discharging device thereof | |
| EP2388884B1 (en) | Method of receiving charge, method of controlling charge, charge control unit and charging equipment | |
| CN219618930U (en) | Charging pile capacity expansion equipment and charging system | |
| CN106114236B (en) | The electronic automobile-used bow formula charging system of one kind and its control method | |
| CN110562070A (en) | Electric vehicle parking energy supply system | |
| EP3439130A1 (en) | Power management apparatus, power management system, and power management method | |
| JP2012005313A (en) | Power management system and on-vehicle power management device | |
| CN205725017U (en) | A kind of charging equipment of electric automobile system | |
| CN105313718A (en) | Vehicle-mounted storage battery charging equipment, system and method | |
| JP2013081289A (en) | Power controller | |
| KR20190062884A (en) | Hybrid powerpack power conversion apparatus for environmentally friendly vehicles | |
| CN205113046U (en) | Vehicle -mounted storage battery battery charging outfit and system | |
| CN112622695A (en) | Charging control method and device and charging pile | |
| CN113212220A (en) | Charging pile management system based on reservation charging | |
| CN110539669B (en) | Emergency power supply method and system for train set | |
| CN202806422U (en) | Compact type fuel cell power source system | |
| CN114851878A (en) | Hybrid electric vehicle, and discharge control method, control device and storage medium thereof | |
| CN207747760U (en) | A kind of AC/DC integrated formula charger system | |
| CN107861444B (en) | Integrated electrical system | |
| CN113580973B (en) | Low-power load household quick charging device and household charging pile | |
| US20240149721A1 (en) | Charging/discharging station | |
| CN220233676U (en) | New energy automobile alternating current charging seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |