CN112776633A - Charging system and method adopting mobile power distribution unit - Google Patents
Charging system and method adopting mobile power distribution unit Download PDFInfo
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- 230000003993 interaction Effects 0.000 claims description 9
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 21
- 229910052802 copper Inorganic materials 0.000 description 21
- 239000010949 copper Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- 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
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- 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
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- 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
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- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention relates to the field of charging, in particular to a charging system and a charging method adopting a mobile power distribution unit. The power supply module comprises at least two power supply modules; the charging channel comprises an input channel and an output channel, the power supply modules are electrically connected with the input channel in a one-to-one correspondence manner, the output channels are electrically connected with the charged device, the number of the input channels is at least two, and the number of the input channels is not less than that of the output channels; the mobile power distribution units correspond to the power supply modules one by one, and the power supply modules are electrically connected with the output channels of the charging channels through the mobile power distribution units; the power distribution controller acquires the charging information of the charged device and controls the mobile power distribution unit to communicate the power supply module and the charging channel according to the charging information; the power distribution controller controls the power output of the power supply module and detects the output state and the built-in state of the power supply module. The problems that in the prior art, a plurality of relays or multi-path relays are adopted for power distribution, the circuits are complex, and the heating amount is high are solved.
Description
Technical Field
The invention relates to the field of charging, in particular to a charging system and a charging method adopting a mobile power distribution unit.
Background
On the occasion of charging the electric automobile by using the charging pile, the electric automobiles with different power requirements can be met. When small-size electric automobile needs power lower, fill the resource that electric pile can waste self power supply ability, perhaps have large-scale electric automobile to need to be greater than when single electric pile self power supply ability of filling, the charge time can be than longer.
In the conventional flexible power distribution system of a charging stack, a core unit PDU adopts an MxN array mode formed by a single relay/contactor or an MxN relay group essentially adopting a mode of a plurality of fixed multi-contact relays/contactors. The direct use of relay arrays has the disadvantages of high relay usage, high cost, and the need for MxN complex control lines, which are quite complex in structure, electrical, hardware, and software. The customized multi-path relay can simplify a high-voltage line and a structure, but a control line cannot be simplified, the cost is high, the number of the channels of the customized multi-path relay is fixed, and the channels cannot be expanded. When multiple powers are concentrated on one multiplex relay, the heat generation of the single multiplex relay is high.
Disclosure of Invention
In order to solve the problems of complex circuit and high heat productivity of power distribution by adopting a plurality of relays or multi-path relays in the prior art, the invention provides a charging system and a charging method adopting a mobile power distribution unit, and the technical problems are solved. The technical scheme of the invention is as follows:
a charging system employing a mobile power distribution unit, comprising: at least two power supply modules; the charging channel comprises input channels and output channels, the power supply modules are electrically connected with the input channels in a one-to-one correspondence mode, the output channels are electrically connected with a charged device, the number of the input channels is at least two, and the number of the input channels is not less than that of the output channels; the mobile power distribution units correspond to the power supply modules one by one, and the power supply modules are electrically connected with the output channels of the charging channels through the mobile power distribution units; the power distribution controller acquires charging information of the charged device and controls the mobile power distribution unit to communicate the power supply module and the charging channel according to the charging information; the power distribution controller controls the power output of the power supply module and detects the output state and the built-in state of the power supply module.
Furthermore, the mobile power distribution units are arranged in one-to-one correspondence with the input channels and share the output channels, the input channels and the output channels are arranged in a crisscross array, each mobile power distribution unit comprises a mobile carrier and an electrode unit arranged on the mobile carrier, the mobile carrier drives the electrode units to move along the extending direction of the input channel correspondingly arranged with one of the electrode units, and the electrode units are telescopically and electrically connected with the input channels and the output channels.
The charging channel controller is in communication connection with the power distribution controller, and is electrically connected with the charged device through the charging channel and used for acquiring BMS data interaction information between the charged device and the charging system during charging.
A charging method adopting a mobile power distribution unit adopts the charging system, and comprises the following steps: s1, when the charged device is detected to be connected with the charging system, the charging channel controller sends BMS data interaction information to the power distribution controller; s2, the power distribution controller distributes the power module to the newly-established charging channel according to the BMS data interaction information; and S3, the power distribution controller controls the mobile power distribution unit to move to the target position, and the power supply module is connected with the charging channel to charge the charged device.
Further, the step S2 includes: s21, the power distribution controller distributes an idle power module to the newly established charging channel; s22, the power distribution controller distributes the power module with low utilization rate in the in-use charging channels corresponding to the at least two power modules to the newly established charging channels; and S23, the power distribution controller distributes the power supply modules with the number exceeding the minimum power charging power supply module number in the charging channel to the newly established charging channel.
Further, step S21 includes: s211, inquiring an idle power supply module and counting the number by the power distribution controller; s212, when the number of the idle power supply modules is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules with less accumulated charging time to the newly established charging channel; when the number of the idle power supply modules is less than the number of the minimum power charging power supply modules and is more than zero, the power distribution controller distributes all the idle power supply modules to the newly established charging channel; when the number of idle power modules is zero, step S22 is executed.
Further, step S22 includes: s221, the power distribution controller inquires power modules with the utilization rate lower than a set value in the in-use charging channels corresponding to the at least two power modules, and counts the number; s222, when the counted number is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channel; when the statistical number is smaller than the number of the power supply modules charged with the minimum power, the power distribution controller distributes all the inquired power supply modules to the newly established charging channel; when the statistical number is zero, step S23 is executed.
Further, step S23 includes: s231, the power distribution controller inquires the number of power modules exceeding the minimum power in the charging channel; and S232, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channels.
Further, still include: s4, detecting the change of the charging power requirement of the charged device in the charging process in real time by the charging channel controller, and sending the power requirement to the power distribution controller; and S5, dynamically planning the power supply module corresponding to the charging channel by the power distribution controller according to the required power.
Further, step S5 includes: s51, the power distribution controller receives the power demand information of the charged device and judges whether the actual output power of the charging channel meets the power demand of the corresponding charged device; s52, when the actual output power of the charging channel meets the power requirement of the corresponding charged device, judging whether the power supply module corresponding to the charging channel outputs full power, if so, not adjusting; if not, judging whether the current output power of the power module with non-full power output is greater than a set value, if so, not adjusting, if not, separating the power module with non-full power output from the current charging channel, and if not, adding the separated power module into the charging channel needing to be supplemented or becoming an idle power module; s53, when the actual output power of the charging channel does not meet the power requirement of the corresponding charged device, calculating the difference between the actual output power and the power requirement of the charged device, judging whether the difference is larger than a preset value or not, and if not, not adjusting; the number of the power supply modules needing to be supplemented is calculated according to the difference, and the idle power supply modules are distributed to be connected into the charging channel.
Based on the technical scheme, the invention can realize the following technical effects:
1. according to the charging system adopting the mobile power distribution unit, the mobile power distribution unit can be movably connected with the specific power supply module and the non-specific output channel, namely, the power distribution of the whole charging system can be realized only by the mobile power distribution unit with the same number as that of the power supply modules, when the charging channel is M groups of input channels and N groups of output channels, if the relays are adopted, MxN relays or relays comprising MxN paths are needed for power distribution, and compared with the charging system adopting fewer mobile power distribution units, the charging system can play a role of the relays, and has fewer electric parts, simple structure and low heat productivity;
2. according to the charging system adopting the movable power distribution unit, the number of the input channels and the output channels and the array mode are reasonably set, so that the same output channel can be connected with at least two power supply modules, and the power distribution and superposition can be realized; the number of the input channels is not less than that of the output channels, the number of the power supply modules charged with the minimum power is equal to the total number of the power supply modules/the number of the output channels, and the result is rounded, so that the number of the power supply modules charged with the minimum power is more than or equal to 1; furthermore, even if all the charging channels are connected with the charged devices, all the charged devices can be charged at the same time;
3. the charging method adopting the movable power distribution unit can meet different application occasions requiring charging time or charging efficiency by flexibly distributing the power supply module and combining the movable power distribution unit to dynamically connect the power supply module and the charging channel; in the charging process, the movable power distribution unit can move and is connected with or separated from the charging channel according to control, so that the flexibility is high, and the movable power distribution unit is suitable for real-time adjustment;
4. according to the charging method adopting the mobile power distribution unit, when the power module is distributed to the newly-established charging channel, the idle power module is distributed according to the accumulated charging time of the power module; when no idle power supply module exists, allocating the power supply module which corresponds to more than one power supply module in the channel and has output power lower than a set value to a charging channel for newly establishing connection for use, and allocating according to the distance of the mobile power allocation unit; when the power modules in the two cases are both 0, the power modules are distributed according to the number of the power modules charged with the minimum power, and the power modules are distributed according to the distance of the mobile power distribution unit, so that the charging channel for newly establishing connection can charge the charged device with the minimum power. The charging method can maximally meet the charging requirement of newly-established connection under the condition of reducing the adjusting action; in addition, the accumulated charging time of the power supply module and the running distance of the mobile power distribution unit are used as one of scheduling reference conditions, so that the service lives of the power supply module and the mobile power distribution unit are prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a charging system according to the present invention;
FIG. 2 is a schematic view of the configuration of the mobile power distribution unit with the mobile carrier removed and the guide rails engaged;
FIG. 3 is a circuit diagram of the electrode unit;
FIG. 4 is a flow chart of a charging method of the present invention;
FIG. 5 is a flow chart of dynamic adjustment during charging according to the present invention;
in the figure: 1-a charging channel; 11-an input channel; 111-input channel i; 112-input channel ii; 12-an output channel; 121-output channel i; 122-output channel ii; 2-a mobile power distribution unit; 21-moving the carrier; 22-an electrode unit; 221-an input electrode; 222-an output electrode; 23-a reset member; 3-a guide rail; 31-toothed guide rails; 32-smooth guide rail; 4-a drive member; 41-bulge; 5-a driving device II; 6-a drive assembly; 61-a driving device I;
Detailed Description
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1-3, this embodiment provides a charging system using a mobile power distribution unit, including at least two power modules, a charging channel 1, a mobile power distribution unit 2, a power distribution controller, and a charging channel controller, where the charging channel 1 includes an input channel 11 and an output channel 12, the power modules are electrically connected to the input channels 11 in a one-to-one correspondence, and the output channels 12 are electrically connected to a device to be charged; the number of the mobile power distribution units 2 is equal to that of the power supply modules, the number of the groups of the input channels 11 is equal, the mobile power distribution units 2 are arranged in one-to-one correspondence with the power supply modules, all the mobile power distribution units 2 share the output channels 12, the input channels 11 and the output channels 12 are arranged around the periphery of the mobile power distribution units 2, and the mobile power distribution units 2 can move to different output channels 12 to communicate the corresponding input channels 11 and the corresponding output channels 12 so as to meet the charging requirements of a charged device. The power distribution controller acquires charging information of a charged device and controls the mobile power distribution unit to communicate the power supply module and the charging channel 1 according to the charging information; the power distribution controller controls the power output of the power supply module and detects the output state and the built-in state of the power supply module; the charging channel controller is in communication connection with the power distribution controller, is electrically connected with the charged device through the charging channel, and is used for acquiring BMS data interaction information between the charged device and the charging system during charging.
The charging channel 1 comprises input channels 11 and output channels 12, wherein the input channels 11 are M groups, the output channels 12 are N groups, M is larger than or equal to 2 and is a positive integer, N is larger than or equal to 1 and is a positive integer, M is larger than or equal to N, the M groups of input channels are arranged in parallel, the N groups of output channels 12 are arranged in parallel, and the input channels 11 and the output channels 12 are arranged in a cross array. Each group of input channels 11 consists of a positive copper bar I and a negative copper bar I; each group of output channels 12 consists of positive and negative copper bars, namely a positive copper bar II and a negative copper bar II, M groups of input channels 11 are distributed on one side or multiple sides of the movable power distribution unit 2, N groups of output channels 12 are distributed on one side or multiple sides of the movable power distribution unit 2, and the input channels 11 and the output channels 12 are different. Preferably, the charging channel 1 is matched with the mobile power distribution unit 2, and the positive copper bars i of all the input channels 11 matched with the same mobile power distribution unit 2 are positioned on the same side of the corresponding mobile power distribution unit 2 and arranged in parallel and in a coplanar manner; the negative copper bars I of all the input channels 11 matched with the same mobile power distribution unit 2 are positioned on the same side of the corresponding mobile power distribution unit 2 and are arranged in parallel and in the same plane; the positive copper bars II of all the output channels 12 matched with the same mobile power distribution unit 2 are positioned on the same side of the corresponding mobile power distribution unit 2 and are arranged in parallel and in the same plane; the negative copper bars II of all the output channels 12 matched with the same mobile power distribution unit 2 are positioned on the same side of the corresponding mobile power distribution unit 2 and are arranged in parallel and in the same plane; the positive copper bar I and the negative copper bar I matched with the same mobile power distribution unit 2 can be positioned on the same side or different sides; the positive copper bar II and the negative copper bar II matched with the same movable power distribution unit 2 can be positioned on the same side or different sides.
The mobile power distribution units 2 are electrically connected with the charging channels 1, the number of the mobile power distribution units 2 is equal to the number of the groups of the input channels 11, namely M, the mobile power distribution units 2 are arranged in one-to-one correspondence with the input channels 11 with the same number, and the mobile power distribution units 2 share the output channels 12. As shown in fig. 1, in this embodiment, the number of the input channels 11 is two, which are the input channel i 111 and the input channel ii 112, the number of the output channels 12 is two, which are the output channel i 121 and the output channel ii 122, the number of the mobile power distribution units 2 is two, the mobile power distribution units 2 are disposed corresponding to the input channels 11 one by one, the positive copper row i and the negative copper row i of the input channels are respectively located at the upper side and the lower side of the corresponding mobile power distribution unit 2 and extend horizontally, the two mobile power distribution units 2 share the two output channels 12, and the positive copper row ii and the negative copper row ii of the two output channels 12 are respectively located at the left side and the right side of the mobile power distribution unit 2 and extend vertically. The mobile power distribution unit 2 slides along the direction parallel to the input channel 11 and can reach any group of output channels 12, and the two power supply modules can be respectively communicated with different output channels 12 or simultaneously communicated with the same output channel 12.
The mobile power distribution unit 2 comprises a mobile carrier 21 and an electrode unit 22, the electrode unit 22 comprises an input electrode 221 and an output electrode 222, the input electrode 221 and the output electrode 222 are electrically connected, and the input electrode 221 and the output electrode 222 are both arranged on the mobile carrier 21 and can protrude out of the outer surface of the mobile carrier 21 to be connected with the charging channel 1. When the movable carrier 21 drives the electrode unit 22 thereon to move to a desired working position, the input electrode 221 and the output electrode 222 of the drivable electrode unit 22 protrude from the outer surface of the movable carrier 21 and are electrically connected with the charging channel 1 to connect the power supply module and the charging channel 1.
The movable carrier 21 is provided with an accommodating cavity, the side wall of the movable carrier 21 is provided with mounting holes communicated with the accommodating cavity and the outside for accommodating the electrodes of the electrode units 22, and the mounting holes are arranged in one-to-one correspondence with the electrodes. The movable carrier 21 may have various shapes, and the movable carrier 21 in this embodiment has a square body, and the mounting holes are distributed on 4 surfaces of the circumference of the movable carrier 21.
The electrode unit 22 includes an input electrode 221 and an output electrode 222, and the input electrode 221 and the output electrode 222 are electrically connected to each other. Specifically, the number of the input electrodes 221 is two, and the output electrodes 222 include a positive electrode i and a negative electrode i, and the positive electrode i is electrically connected with the positive electrode ii, and the negative electrode i is electrically connected with the negative electrode ii. Further, at least one of the electrodes can be arranged in a telescopic manner, the other electrodes are fixedly arranged in the mounting holes and keep protruding out of the movable carrier 21, when the movable carrier 21 moves to a required station, the fixedly arranged electrodes are electrically connected with the charging channel 1, the telescopically arranged electrodes need to protrude out of the movable carrier 21 under the driving acting force to be electrically connected with the charging channel 1, namely, the on-off of the charging channel is controlled by controlling the telescopic state of the telescopically arranged electrodes. Specifically, at least one electrode is arranged in a telescopic manner, and is determined according to the composition of the input electrode 221 and the output electrode 222, when the input electrode 221 and the output electrode 222 are both one, at least one electrode is selected from the input electrode 221 and the output electrode 222; when the input electrode 221 and the output electrode 222 each include both positive and negative electrodes, at least one electrode is selected from the positive and negative electrodes of the input electrode and the positive and negative electrodes of the output electrode, that is, the charging path 1 is in the off state when the telescopically arranged electrodes are in the retracted state, and the charging path 1 is in the on state when the telescopically arranged electrodes are in the extended state. Under operating condition, positive electrode I stretches out and is connected with I electricity in positive copper bar, and negative electrode I stretches out and is connected with I electricity in the negative copper bar, and positive electrode II stretches out and is connected with II electricity in positive copper bar, and negative electrode II stretches out and is connected with II electricity in the negative copper bar.
In this embodiment, it is flexible to set up all electrodes and sets up, specifically, the electrode clearance holds in the mounting hole, is provided with the piece 23 that resets between electrode and the mounting hole, and the one end that resets 23 acts on the electrode, and the other end acts on the mounting hole, makes the electrode can retract in the mounting hole under the effect that resets 23. Further specifically, the outer surface of the electrode and the inner wall of the mounting hole can be provided with limiting protrusions in a matching manner, and two ends of the reset piece 23 respectively abut against the two limiting protrusions to provide reset acting force for the electrode.
The telescopically arranged electrodes protrude out of the movable carrier 21 under the action of the driving element 4, the driving element 4 is rotatably arranged inside the movable carrier 21, the telescopically arranged electrodes are all distributed on the periphery of the driving element 4, as shown in fig. 2, the peripheral surface of the driving element 4 is provided with a protrusion 41, and when the driving element 4 rotates, the protrusion 41 can push the telescopically arranged electrodes to protrude out of the outer surface of the movable carrier 21. Specifically, the driving member 4 may be in an impeller shape, protrusions 41 and grooves are alternately arranged on the outer circumferential surface of the driving member 4, the inner end of the telescopically arranged electrode abuts against the outer circumferential surface of the driving member 4, the other end of the telescopically arranged electrode is a contact end, the driving member 4 can be set to perform reciprocating swing motion, and when the protrusions 41 on the driving member 4 correspond to the electrode, the contact end of the electrode can be pushed to protrude out of the outer surface of the movable carrier 21; when the recess on the driver 4 corresponds to the electrode, the electrode can abut against the recess under the reset force of the reset member 23, and the contact end of the electrode retracts. In this embodiment, 4 electrodes that stretch out and draw back and set up are evenly distributed in the periphery of driving piece 4 and extend along radial, and the central angle between two adjacent electrodes is 90 degrees, sets up 4 arch 41 and 4 recesses on the outer peripheral face of driving piece 4 in turn, and driving piece 4 is positive and negative to rotate 90 degrees in order to drive the electrode and stretch out and draw back, realizes controlling synchronous flexible of all electrodes. Preferably, both ends of each electrode are spherical ends, so that the contact area of both ends of the electrode is reduced, and the electrode expansion and contraction are conveniently controlled. Further, the driving member 4 is driven by a driving device ii 5 to rotate, the driving device ii 5 is selected from but not limited to a motor, the driving device ii 5 is disposed inside the movable carrier 21, a body of the driving device ii is fixedly connected to the movable carrier 21, and a driving end of the driving device ii is connected to the driving member 4. Except the driving mode in this embodiment, still can set up the disc type driving piece, through connecting each electrode hinge in with the electrode unit, because the mounting hole has certain guide effect to the electrode, when the driving piece reciprocating rotation, can drive the electrode and do concertina movement, the driving piece still rotates under drive arrangement II's drive effect, can save the piece that resets.
The movable power distribution unit 2 moves along the guide rails 3, the guide rails 3 can be set to be at least two, the guide rails are all arranged in parallel to the input channel 11, the guide rails 3 penetrate through the movable carrier 21, the two guide rails 3 can be connected with a power supply, power supply for power utilization parts inside the movable carrier 21 is facilitated, if power supply for the driving device II 5 is achieved, stable movement of the movable carrier 21 can be guaranteed through the at least two guide rails, and overturning is not easy. Further, at least one of the guide rails is a toothed guide rail, and the movable carrier 21 is driven to move along the guide rail 3 in a gear meshing transmission mode. In this embodiment, two guide rails 3 are provided, one of the guide rails is a toothed guide rail 31, the other guide rail is a smooth guide rail 32, and the two guide rails 3 are both arranged in a staggered manner with respect to the electrode unit 22 and the driving member 4, so that the work of the electrode unit 22 and the driving member 4 is not affected. The moving carrier 21 slides along the guide rail 3 under the driving action of the driving assembly 6. Specifically, the driving assembly 6 comprises a driving device i 61 and a gear 62, the driving device i 61 is fixedly arranged on the moving carrier 21, the driving end of the driving device i 61 is connected with the gear 62, the gear 62 is engaged with the toothed rail 31, and when the driving device i 61 drives the gear 62 to rotate, the moving carrier 21 can be driven to move along the rail 3. Preferably, the driving device i 61 may be disposed inside or outside the moving carrier 21 as long as it does not affect the electrode unit 22 and the driving member 4. Preferably, the driving device i 61 is selected from, but not limited to, a motor, and two guide rails can supply power to the driving device i 61.
As shown in fig. 4, the present embodiment further provides a charging method using a mobile power distribution unit, and the charging system includes the following steps:
s1, when the charged device is detected to be connected with the charging system, the charging channel controller sends BMS data interaction information to the power distribution controller;
s2, the power distribution controller distributes the power module to the newly-established charging channel according to the BMS data interaction information;
and S3, the power distribution controller controls the mobile power distribution unit to move to the target position, and the power supply module is connected with the charging channel to charge the charged device.
Wherein, step S2 specifically includes the following steps:
s21, the power distribution controller distributes an idle power module to the newly established charging channel;
s22, the power distribution controller distributes the power module with low utilization rate in the in-use charging channels corresponding to the at least two power modules to the newly established charging channels;
and S23, the power distribution controller distributes the power supply modules with the number exceeding the minimum power charging power supply module number in the charging channel to the newly established charging channel.
Preferably, step S21 specifically includes: s211, inquiring an idle power supply module and counting the number by the power distribution controller; s212, when the number of the idle power supply modules is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules with less accumulated charging time to the newly established charging channel; when the number of the idle power supply modules is less than the number of the minimum power charging power supply modules and is more than zero, the power distribution controller distributes all the idle power supply modules to the newly established charging channel; when the number of idle power modules is zero, step S22 is executed. The number of the power modules charged with the minimum power is equal to the total number of the power modules/the group number of the output channels, and an integer part is taken as a result. The preferential utilization of the idle power module may be achieved through step S21.
Preferably, step S22 specifically includes: s221, the power distribution controller inquires power modules with the utilization rate lower than a set value in the in-use charging channels corresponding to the at least two power modules, and counts the number; s222, when the counted number is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channel; when the statistical number is smaller than the number of the power supply modules charged with the minimum power, the power distribution controller distributes all the inquired power supply modules to the newly established charging channel; when the statistical number is zero, step S23 is executed. In step S222, the distribution is performed according to the distance between the mobile power distribution unit corresponding to the queried power module and the newly established charging channel, so that the moving distance of the mobile power distribution unit can be reduced, and the service life of the mobile power distribution unit can be prolonged. The set value in step S221 is to set a threshold value for the utilization rate of the power module, where the threshold value is a percentage of the current output power of the power module to the total power of the power module, and when the utilization rate of the power module is lower than the threshold value, it is determined that the utilization rate of the power module is low. The assignment of the low-utilization power supply module to the charging channel of the newly established connection is realized by step S22.
Preferably, step S23 specifically includes: s231, the power distribution controller inquires the number of power modules exceeding the minimum power in the charging channel; and S232, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channels. When there is no idle power module and there is no power module with low utilization rate, step S23 is performed to transfer extra power modules to the newly established charging module while ensuring the number of power modules charged with the minimum power corresponding to the charging channel.
In step S3, the power distribution controller controls the driving device i 61 on the mobile power distribution unit 2 corresponding to the selected power module to operate, so as to drive the mobile power distribution unit 2 to move to the output channel 12 of the newly-established charging channel 1, and then the power distribution controller 2 controls the driving device ii 5 to drive the driving member 4 to rotate and push the electrode unit 22 to extend out to be electrically connected with the input channel 11 and the output channel 12, so as to electrically connect the selected power module and the output channel 12 of the newly-established charging channel 1.
Further, during the charging process, the charging system of the present embodiment may further perform real-time monitoring and timely adjustment, specifically, as shown in fig. 5, after step S3, the charging method of the present embodiment further includes the following steps:
s4, detecting the change of the charging power requirement of the charged device in the charging process in real time by the charging channel controller, and sending the power requirement to the power distribution controller;
and S5, dynamically planning the power supply module corresponding to the charging channel by the power distribution controller according to the required power.
Wherein, step S5 specifically includes:
s51, the power distribution controller receives the power demand information of the charged device and judges whether the actual output power of the charging channel meets the power demand of the corresponding charged device;
s52, when the actual output power of the charging channel meets the power requirement of the corresponding charged device, judging whether the power supply module corresponding to the charging channel outputs full power, if so, not adjusting; if not, judging whether the current output power of the power module with non-full power output is greater than a set value, if so, not adjusting, if not, separating the power module with non-full power output from the current charging channel, and if not, adding the separated power module into the charging channel needing to be supplemented or becoming an idle power module;
s53, when the actual output power of the charging channel does not meet the power requirement of the corresponding charged device, calculating the difference between the actual output power and the power requirement of the charged device, judging whether the difference is larger than a preset value or not, and if not, not adjusting; the number of the power supply modules needing to be supplemented is calculated according to the difference, and the idle power supply modules are distributed to be connected into the charging channel. The preset value is a threshold value of a set difference, the threshold value is the percentage of the total power of the modules, the value range is 10% -100%, the preset value is used for judging whether the power module needs to be supplemented in the charging channel, and when the difference is larger than the threshold value, the power module needs to be supplemented; if the difference is less than the threshold, no padding is required.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A charging system employing a mobile power distribution unit, comprising:
at least two power supply modules;
the charging channel comprises input channels and output channels, the power supply modules are electrically connected with the input channels in a one-to-one correspondence mode, the output channels are electrically connected with a charged device, the number of the input channels is at least two, and the number of the input channels is not less than that of the output channels;
the mobile power distribution units correspond to the power supply modules one by one, and the power supply modules are electrically connected with the output channels of the charging channels through the mobile power distribution units;
the power distribution controller acquires charging information of the charged device and controls the mobile power distribution unit to communicate the power supply module and the charging channel according to the charging information; the power distribution controller controls the power output of the power supply module and detects the output state and the built-in state of the power supply module.
2. The charging system of claim 1, wherein the mobile power distribution units are disposed in one-to-one correspondence with input channels and share the output channels, the input channels and the output channels are arranged in a criss-cross array, the mobile power distribution unit comprises a mobile carrier and electrode units disposed on the mobile carrier, the mobile carrier drives the electrode units to move along an extending direction of the input channels, and the electrode units are telescopically and electrically connected to the input channels and the output channels.
3. The charging system using the mobile power distribution unit according to any one of claims 1 to 2, further comprising a charging channel controller, wherein the charging channel controller is communicatively connected to the power distribution controller, and the charging channel controller is electrically connected to the charged device through the charging channel, and is configured to obtain BMS data interaction information between the charged device and the charging system during charging.
4. A charging method using a mobile power distribution unit, characterized in that, using the charging system of claim 3, comprising the steps of:
s1, when the charged device is detected to be connected with the charging system, the charging channel controller sends BMS data interaction information to the power distribution controller;
s2, the power distribution controller distributes the power module to the newly-established charging channel according to the BMS data interaction information;
and S3, the power distribution controller controls the mobile power distribution unit to move to the target position, and the power supply module is connected with the charging channel to charge the charged device.
5. The charging method using the mobile power distribution unit according to claim 4, wherein the step S2 comprises:
s21, the power distribution controller distributes an idle power module to the newly established charging channel;
s22, the power distribution controller distributes the power module with low utilization rate in the in-use charging channels corresponding to the at least two power modules to the newly established charging channels;
and S23, the power distribution controller distributes the power supply modules with the number exceeding the minimum power charging power supply module number in the charging channel to the newly established charging channel.
6. The charging method using the mobile power distribution unit of claim 5, wherein the step S21 comprises:
s211, inquiring an idle power supply module and counting the number by the power distribution controller;
s212, when the number of the idle power supply modules is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules with less accumulated charging time to the newly established charging channel; when the number of the idle power supply modules is less than the number of the minimum power charging power supply modules and is more than zero, the power distribution controller distributes all the idle power supply modules to the newly established charging channel; when the number of idle power modules is zero, step S22 is executed.
7. The charging method using the mobile power distribution unit of claim 5, wherein the step S22 comprises:
s221, the power distribution controller inquires power modules with the utilization rate lower than a set value in the in-use charging channels corresponding to the at least two power modules, and counts the number;
s222, when the counted number is not less than the number of the power supply modules charged with the minimum power, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channel; when the statistical number is smaller than the number of the power supply modules charged with the minimum power, the power distribution controller distributes all the inquired power supply modules to the newly established charging channel; when the statistical number is zero, step S23 is executed.
8. The charging method using the mobile power distribution unit of claim 5, wherein the step S23 comprises:
s231, the power distribution controller inquires the number of power modules exceeding the minimum power in the charging channel;
and S232, the power distribution controller sequentially distributes the power supply modules corresponding to the mobile power distribution units with the shorter distances to the newly established charging channels.
9. A charging method using a mobile power distribution unit according to any of claims 4-8, further comprising:
s4, detecting the change of the charging power requirement of the charged device in the charging process in real time by the charging channel controller, and sending the power requirement to the power distribution controller;
and S5, dynamically planning the power supply module corresponding to the charging channel by the power distribution controller according to the required power.
10. The charging method using the mobile power distribution unit of claim 9, wherein the step S5 comprises:
s51, the power distribution controller receives the power demand information of the charged device and judges whether the actual output power of the charging channel meets the power demand of the corresponding charged device;
s52, when the actual output power of the charging channel meets the power requirement of the corresponding charged device, judging whether the power supply module corresponding to the charging channel outputs full power, if so, not adjusting; if not, judging whether the current output power of the power module with non-full power output is greater than a set value, if so, not adjusting, if not, separating the power module with non-full power output from the current charging channel, and if not, adding the separated power module into the charging channel needing to be supplemented or becoming an idle power module;
s53, when the actual output power of the charging channel does not meet the power requirement of the corresponding charged device, calculating the difference between the actual output power and the power requirement of the charged device, judging whether the difference is larger than a preset value or not, and if not, not adjusting; the number of the power supply modules needing to be supplemented is calculated according to the difference, and the idle power supply modules are distributed to be connected into the charging channel.
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Effective date of registration: 20231213 Address after: 213000 No.39 longhui Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Wanbang Digital Energy Co.,Ltd. Patentee after: Guochuang mobile energy innovation center (Jiangsu) Co.,Ltd. Address before: 213000 5-a201, chuangyangang, Changzhou science and Education City, No. 18, Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Guochuang mobile energy innovation center (Jiangsu) Co.,Ltd. |