CN112744105A - Charging pile and charging regulation and control method - Google Patents

Charging pile and charging regulation and control method Download PDF

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Publication number
CN112744105A
CN112744105A CN201911041443.4A CN201911041443A CN112744105A CN 112744105 A CN112744105 A CN 112744105A CN 201911041443 A CN201911041443 A CN 201911041443A CN 112744105 A CN112744105 A CN 112744105A
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Prior art keywords
charging
current
pile
charging pile
sliding structure
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Granted
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CN201911041443.4A
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Chinese (zh)
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CN112744105B (en
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邵柳东
陈欢
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Ningbo Sanxing Smart Electric Co Ltd
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Ningbo Sanxing Smart Electric Co Ltd
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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
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • 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
    • B60L53/302—Cooling of charging equipment
    • 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
    • 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
    • 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
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides a charging pile and a charging regulation and control protection method, wherein the charging pile comprises a base, a support, an electric appliance box arranged at the top end of the base, a control device arranged in the electric appliance box and a heat dissipation device positioned in the control device, the support is arranged at the top end of the base and extends towards two sides, at least four charging arms are arranged at two sides of the support, a sliding structure is arranged in each charging arm, the sliding structure is connected with a charging end, a driving device drives the sliding structure to move in each charging arm, the expansion and contraction of each charging end are adjusted by adjusting the position of the sliding structure in each charging arm, one end of the sliding structure, close to the support, is connected with a spiral cable, and the other end of the spiral cable is connected with the control device. Whether the electric vehicle at an idle position can be charged or not is judged by adjusting the output current of the charging end which is charging, and meanwhile, the sliding structure is controlled to move outwards to drive the charging end to stretch out for charging, so that the charging pile utilization rate is improved, and the safety of the charging process of the charging pile is guaranteed.

Description

Charging pile and charging regulation and control method
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a charging pile and a charging regulation and control protection method.
Background
Along with the shortage of petroleum resources and the development of battery technologies, a new generation of energy-saving and environment-friendly automobiles represented by electric automobiles become an inevitable trend of the development of the automobile industry, the development of the electric automobiles has an increasingly large demand for public charging devices, the current electric automobile charging piles mainly have floor type and wall-hanging type, most automobile charging stations adopt the floor type, and the current floor type charging piles mainly have the following problems: 1. in order to realize the waterproof and anti-collision functions, the floor type charging pile needs to be provided with a concrete base which is higher than the ground by a certain size, so that a large part of space is occupied; 2. due to the limitation of space, one charging pile can only charge 1-2 automobiles at the same time, so that the use efficiency of the charging pile is influenced; 3. due to the adoption of a floor type, heat dissipation holes in the charging pile control cabinet can be generally only installed along the side face of the control cabinet, and air in the control cabinet can only form convection along the cabinet wall, so that a heating device in the central position of the control cabinet cannot fully dissipate heat, and the service life of the heating device is influenced; 4. because the floor type charging pile is installed at a lower position, the charging pile is easy to be damaged by lawless persons.
Application number 201611044852.6 discloses an overhead electric pile that fills among the prior art, including switch board, charging cable, charging plug, the switch board sets up on the support, the support sets up in the stand top, the top of stand still is provided with the crossbeam, be provided with the cantilever on the crossbeam, be provided with cable winding and unwinding devices and sensor on the cantilever, the last charging cable that has hung in midair of cable winding and unwinding devices, charging cable's one end is provided with charging plug. Although this prior art becomes the tradition console mode into the built on stilts formula, has saved cement base and installation space that traditional console mode occupy to a certain extent, because charging plug passes through the wire reel setting inside the cantilever, the cantilever is made by "H" type channel-section steel for the cable does not receive the protection, exposes perishable outside for a long time, easily breaks down in the follow-up use. And when a plurality of charging plugs charge simultaneously, easily cause and fill electric pile load too big, and the electric motor car of difference is different to the electric quantity demand, fills electric pile and can not have corresponding regulation, easily causes to fill electric pile and breaks down, influences the use.
Disclosure of Invention
In view of the above, the present invention provides a charging pile and a charging regulation and protection method to solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a fill electric pile, includes base, support, setting the electrical apparatus case, the setting on base top are in the inside controlling means of electrical apparatus case and be located the inside heat abstractor of controlling means, the support sets up the top of base just extends to both sides the both sides of support are provided with four at least charging arms the inside of charging arm is provided with sliding construction, the last charging end of connecting of sliding construction, drive arrangement drive sliding construction is at the inside removal of charging arm, through adjusting sliding construction adjusts the position of charging arm inside the flexible of charging end sliding construction is close spiral cable is connected to the one end of support, spiral cable's the other end is connected with controlling means.
Further, the arm that charges includes rectangular casing, the inside formation of casing holds the chamber, and drive arrangement drives sliding structure is in hold intracavity portion slip the upper and lower both sides of shells inner wall are provided with two slide rails, two the slide rail sets up relatively, the slide rail set up into with sliding structure complex triangle protruding track.
Furthermore, a moving groove is formed in the lower side of the shell, the outer side of the charging arm can be communicated with the inside of the containing cavity through the moving groove, a charging end connected with the sliding structure penetrates through the moving groove to extend outwards, the length of the moving groove is smaller than that of the charging arm, and the moving groove is formed in one end, far away from the support, of the moving groove.
Further, sliding construction includes slider and pulley, the slider sets up to the rectangle structure, the pulley passes through the connecting axle and connects with the form of dismantling the connection on one side of slider one side that the slider deviates from the pulley is provided with the cable junction end, the sub-unit connection of cable junction end has charging cable, charging cable's end-to-end connection charging end.
Furthermore, a sliding groove corresponding to the triangular protruding track is formed in the pulley, and the sliding groove is formed in the circumferential side wall of the pulley.
Compared with the prior art, the charging pile has the following advantages:
according to the charging pile, the electric appliance box is arranged at a higher position through the base, the problem that the floor area of the traditional floor type charging pile is large is solved, the space is saved, the expansion of the charging end is controlled through the sliding structure, the charging end is controlled to stretch out when charging is needed, the charging distance is convenient to adjust, the sliding structure is controlled to drive the charging end to contract inwards when the charging pile is idle, and the charging cable is well protected.
The invention also provides a charging regulation and control method, which uses the charging pile and comprises the following steps:
s101: the charging pile is in an open state, and the charging arm M in an idle state displays an idle warning mark;
s102: the electric vehicle drives into an idle parking place M according to the warning mark, and an appointed charging instruction is input into a display box of the charging pile;
s103: the control device calculates charging current sums sigma I of all charging ends currently being charged, compares the charging current sums sigma I with a first current threshold value, and judges whether the current sums are larger than the first current threshold value I or not1If yes, executing step S104, otherwise executing step S201;
s104: the control device starts to adjust current distribution of the plurality of current charging ends;
s105: the electric vehicle sends the electric quantity information of the storage battery to the charging pile;
s106: according to the charging priority level calculated by the control device, reducing the output current of the corresponding charging end;
s107: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure BDA0002252937500000031
And calculating the sum of the current charging current
Figure BDA0002252937500000032
And a second current threshold I2Judging whether the difference is larger than a preset difference delta I, if so, executing step S201; if not, executing step S108;
s201: the control device controls the sliding structure at the position of the charging arm M to move outwards to drive the charging end to extend outwards, and a user can connect the charging end with the electric vehicle for charging;
s202: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure BDA0002252937500000033
Judging the current sum
Figure BDA0002252937500000034
Whether or not it is greater than the second current threshold I2If yes, executing step S203, otherwise, executing step S205, where the charging pile operates in the current charging state;
s203: judging the current sum
Figure BDA0002252937500000035
Whether or not it is greater than the third current threshold I3If yes, executing step S204, otherwise executing step S206;
s206: detecting the internal temperature of the charging pile electrical box, and judging whether the internal temperature of the charging pile electrical box exceeds a first temperature threshold value T1If yes, executing step S207, otherwise returning to step S205;
s207: opening a heat dissipation device inside the electric box, and cooling the inside of the charging pile electric box;
s208: whether the internal temperature of the charging pile electric box exceeds a second temperature threshold value T or not is judged2；
S209: judging whether the temperature of the charging plug of the charging end at the position of the charging arm M exceeds a third temperature threshold T3If yes, go to step S210, otherwise, go back to step S207;
s210: detecting whether the output current of the charging end at the position M of the charging arm is greater than the safe current threshold of the electric vehicle, if so, indicating that a fault occurs in the electric quantity distribution process of an internal control device of the charging pile, and executing a step S211; if not, the charging end is judged to be in fault, and step S204 is executed;
s211: fill electric pile controlling means control and fill electric pile and make the inside malfunction alerting suggestion of electrical apparatus case.
Further, the first current threshold I1Rated output current I for charging pilee80% of the first current threshold I, the second current threshold I2And the rated output current I of the charging pileeAnd the third current threshold I3 is the current protection threshold of the charging pile.
Further, the first temperature threshold T1For the internal temperature of the electrical box under the full load state of the charging pile, the second temperature threshold value T2Greater than a first temperature threshold T1Said third temperature threshold T3The temperature value of the charging plug at the charging end when the charging plug works normally.
Further, when the current is adjusted according to the charging priority, the current is adjusted according to the following formula:
Figure BDA0002252937500000041
the A1, A2 and the like are all coefficients smaller than 1, the output currents i1 and i2 … … im of the charging ends which are currently charged are equal, m is smaller than the number n of the charging arms, and the sizes of A1 to Am are decreased in sequence.
Further, the third current threshold I3＝β*IeBeta is 1.1 to 1.3; the second temperature threshold T2＝α*T1And the value of alpha is 1.2-1.5.
According to the charging regulation and control protection method for the charging pile, when a vehicle to be charged is parked at the position corresponding to the idle charging arm, a control system of the charging pile adjusts whether the electric vehicle at the position corresponding to the idle charging arm can be charged or not according to the loaded condition, the electric vehicle at the idle position can be charged or not is judged by adjusting the output current of the charging end which is charging, meanwhile, the control device controls the sliding structure corresponding to the charging arm to move outwards to drive the charging end to extend out, so that the electric vehicle is charged, the utilization rate of the charging pile is improved, and meanwhile, the safety of the charging process of the charging pile is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a charging pile according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a charging arm according to an embodiment of the present invention;
fig. 3 is a schematic view of an internal sliding structure of the charging arm according to the embodiment of the present invention;
fig. 4 is a schematic view of another perspective structure of the sliding structure inside the charging arm according to the embodiment of the present invention;
fig. 5 is a side view of the sliding structure inside the charging arm according to the embodiment of the present invention;
fig. 6 is a flowchart of a charging regulation protection method according to an embodiment of the present invention.
Description of reference numerals:
1-base, 2-bracket, 3-electrical box, 4-heat dissipation part, 5-charging arm, 6-charging terminal, 7-sliding structure 21-display box, 22-indicator light, 23-switch, 51-shell, 52-containing cavity, 53-sliding rail, 54-moving groove, 71-sliding block, 72-pulley, 73-connecting shaft, 74-cable connecting terminal, 75-charging cable, 76-spiral cable, 77-sliding groove
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, this embodiment provides a fill electric pile with a plurality of ends that charge, fill electric pile and include base 1, support 2, set up at the electrical apparatus case 3 on base 1 top and set up at the inside controlling means of electrical apparatus case 3, base 1 is fixed with ground, plays the fixed effect of support to support 2 and electrical apparatus case 3, and electrical apparatus case 3 is installed on the top of base 1, has solved the problem that traditional falls to the ground and fills electric pile area big, saves space. Support 2 sets up on base 1's top and extends to both sides, is provided with four at least charging arm 5 in the both sides of support 2, and charging arm 5 sets up the electric motor car on the convenient different parking stalls and charges, improves the utilization ratio of filling electric pile. Be provided with sliding structure 7 in the inside of charging arm 5, connect charging end 6 on sliding structure 7, drive arrangement drives sliding structure 7 and removes in charging arm 5 is inside, through adjusting sliding structure 7 in the inside position of charging arm 5, adjust the flexible of charging end 6, not only conveniently adjust the distance of charging, and when charging end 6 does not charge, can be to the position removal that is close support 2 through adjusting sliding structure 7, make charging end 6 withdrawal, compare with the cable winding and unwinding devices among the prior art, the structure has been simplified, the wire reel has been omitted, and have fine guard action to charging cable, prevent that the frequent bending of cable from causing the damage.
As shown in fig. 2 to 5, further, the charging arm 5 includes a rectangular housing 51, a housing 52 is formed inside the housing 51, and the driving device drives the sliding structure 7 to slide inside the housing 52, so as to adjust the length of the charging end 6, thereby facilitating the charging of the electric vehicles at different positions. Two sliding rails 53 are disposed on the upper and lower sides of the inner wall of the housing 51, and the two sliding rails 53 are disposed opposite to each other, so that the sliding structure 7 can slide smoothly along the sliding rails 53. Further, the slide rail 53 is configured as a triangular protrusion rail matched with the sliding structure. A moving groove 54 is provided at a lower side of the housing 51, the moving groove 54 enables the outer side of the charging arm 5 to communicate with the inside of the accommodating chamber 52, and the charging terminal 6 connected to the sliding structure 7 protrudes outward through the moving groove 54, so that the charging terminal 6 can move back and forth along the moving groove 54 when the sliding structure 7 slides along the slide rail 53. The length of the moving groove 54 is smaller than that of the charging arm 5, and the moving groove 54 is arranged at one end far away from the bracket 2, so that when the charging end 6 is in a non-charging state and the sliding structure 7 slides to a position close to the bracket 2, the charging end 6 can be driven to contract inside the charging arm 5, and a certain protection effect is achieved on the charging cable.
As shown in fig. 3 to 5, the sliding structure 7 includes a sliding block 71 and a pulley 72, the sliding block 71 is configured as a rectangular structure, and the pulley 72 is connected to one side of the sliding block 71 through a connecting shaft 73 in a detachable connection manner, so that the pulley 72 can rotate around the connecting shaft, and the pulley 72 is ensured to drive the whole sliding structure 7 to slide smoothly. Be provided with cable junction 74 on one side that the slider 71 deviates from pulley 72, the sub-unit connection of cable junction 74 has charging cable 75, and charging cable 75's end-to-end connection charging end 6 from this realizes that pulley 72 drives charging end 6 and removes smoothly, sets up cable junction 74 and pulley 72 relatively moreover, prevents mutual interference between the two, reduces the fault rate, increases sliding construction's job stabilization nature. Further, a sliding groove 77 corresponding to the triangular protrusion rail is formed on the pulley 72, and the sliding groove 77 is formed in a circumferential side wall of the pulley 72. When the driving device drives the sliding block 71 of the sliding structure 7 to move back and forth along the charging arm 5, the pulley 72 rotates around the connecting shaft 73, meanwhile, the sliding groove 77 of the pulley 72 is clamped on the sliding rail 53, the pulley 72 rolls back and forth along the sliding rail, the arrangement of the sliding groove prevents the pulley from falling off from the sliding rail when the pulley moves back and forth along the sliding rail, rolling friction is arranged between the sliding structure and the sliding rail, the friction resistance between the sliding structure and the sliding rail is reduced, the smooth rolling of the pulley is ensured, and the phenomenon of blocking and stopping is avoided.
Further, the upper end of the sliding block 71 is connected with a driving device, so that the driving device drives the sliding structure to move back and forth, and the charging end 6 can be conveniently adjusted.
One end of the sliding block 71 close to the bracket 2 is connected with a spiral cable 76, the other end of the spiral cable 76 is connected with a control device, when the control device of the charging pile controls the charging end 6 to extend outwards for charging, the driving device drives the sliding structure 7 to move outwards, and meanwhile, the spiral cable 76 is stretched, so that the charging end 6 extends outwards; when the charging terminal 6 is completely charged and is pulled out from the electric vehicle, the driving device drives the sliding structure 7 to move inwards, and meanwhile, the spiral cable 76 is compressed, so that the charging cable 75 of the charging terminal 6 is accommodated in the accommodating cavity inside the charging arm.
Further, a display box 21, an indicator light 22 and a switch 23 are further arranged on the base 1, wherein the display box 21 is used for displaying various operating parameters of the charging pile, such as maximum output current, current charging current and the like, and displaying an operation terminal of the human-computer interaction device, and a user can input charging information through the display box; indicator lamp 22 plays the warning effect to when filling electric pile and breaking down, play the effect of warning suggestion, switch 23 is used for control to fill electric pile's whole electricity and connects, still is provided with the apron on the upper portion of switch 23, plays the guard action to the switch, prevents that rainwater, rubbish etc. from getting into inside the electric pile that fills.
Further, still be provided with heat dissipation portion 4 in the side of electrical apparatus case 3, guarantee that electrical apparatus case normally dispels the heat, improve the job stabilization nature who fills electric pile.
When the control device receives a charging instruction, the control device controls the driving device to drive the corresponding sliding structure to move outwards, the spiral cable extends, and meanwhile, the sliding structure drives the charging end to extend outwards, so that the electric vehicle corresponding to the parking space can be charged; when the electric vehicle finishes charging or the charging end breaks down, the charging end is pulled out from the electric vehicle, the control device controls the driving device to drive the corresponding sliding structure to move inwards, the spiral cable contracts inwards, the sliding structure drives the charging end to contract inwards, and the charging cable connected with the charging end is stored inside the charging arm.
The electric pile that fills that this embodiment provided sets up the electric appliance box in the higher place of position through the base, has solved the tradition and has fallen to the ground and fill the big problem of electric pile area, saves space, through the flexible of sliding construction control charge end, control charge end when needs charge and stretch out, conveniently adjusts the charging distance, controls sliding construction when idle and drives charge end inward contraction, has fine guard action to charging cable.
The invention also provides a charging pile regulation and control protection method, which is used for controlling the electric quantity distribution when different charging ends charge different electric vehicles at the same time, and as shown in fig. 6, the method specifically comprises the following steps:
s101: the charging pile is in an open state, and the charging arm M in an idle state displays an idle warning mark;
s102: the electric vehicle drives into an idle parking place M according to the warning mark, and an appointed charging instruction is input into a display box of the charging pile;
s103: the control device calculates the sum of charging currents of all charging terminals currently being charged
Figure BDA0002252937500000081
And comparing with the first current threshold to determine whether the sum of the currents is greater than the first current threshold I1If yes, executing step S104, otherwise executing step S201;
wherein the first current threshold I1Rated output current I for charging pilee80% of the current charging terminal if the charging current at the current charging terminal is added
Figure BDA0002252937500000082
Greater than a first current threshold I1If the charging current of the charging pile is close to the rated output current Ie of the charging pile, the charging pile is close to full load, and the electric vehicle cannot be charged additionally; if the charging current of the current charging arm is added
Figure BDA0002252937500000083
Not greater than the first current thresholdI1Then, the overall charging current of the charging pile and the rated output current I of the charging pile are describedeAnd the difference is also kept between the charging piles and other electric vehicles can be loaded.
S104: the control device starts to adjust current distribution of the plurality of current charging ends;
specifically, the current of the corresponding charging end is adjusted according to the electric quantity demand condition of the electric vehicle and the queuing sequence of the electric vehicle, and when the electric quantity of the electric vehicle is low, the charging demand is high, and charging is prioritized.
S105: the electric vehicle sends the electric quantity information of the storage battery to the charging pile;
after receiving the electric quantity information of the storage batteries sent by each electric vehicle, the charging pile control device analyzes and sorts the received information and calculates the priority level, wherein the electric vehicle with higher electric quantity of the storage batteries indicates longer charged time, the priority level is higher, and the electric vehicle with lower electric quantity of the storage batteries indicates shorter charged time and lower priority level.
S106: according to the charging priority level calculated by the control device, reducing the output current of the corresponding charging end;
when the current is regulated according to the charging priority, the regulation is carried out according to the following formula:
Figure BDA0002252937500000091
the charging end output currents i1 and i2 … … im which are currently being charged are equal, m is smaller than the number n of charging arms, the higher the priority level of the electric vehicle connected to the charging end is, the larger the corresponding coefficient A is, and the lower the reduced current is; the numbers 1, 2 and 3 … … m are numbered according to the sequence of the charging start of the electric vehicle, namely the sizes of the electric vehicles from A1 to Am are sequentially decreased, so that the electric vehicle which starts to be charged at the earliest can be fully charged, and the fairness of the whole charging process is ensured.
S107: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure BDA0002252937500000092
And calculating the sum of the current charging current
Figure BDA0002252937500000093
And a second current threshold I2If yes, controlling the charging end in an idle state to display a chargeable warning mark, and executing the step S201; if not, the charging pile is full, and the additional electric vehicle cannot be charged, and step S108 is executed.
S201: the control device controls the sliding structure at the position of the charging arm M to move outwards to drive the charging end to extend outwards, and a user can connect the charging end with the electric vehicle for charging;
s202: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure BDA0002252937500000094
Judging the current sum
Figure BDA0002252937500000095
Whether or not it is greater than the second current threshold I2If so, it indicates that the overall output current of the charging pile is large, step S203 is executed, otherwise, it indicates that the charging pile can load the current electric vehicle for charging, and step S205 is executed, where the charging pile operates in the current charging state.
Wherein the second current threshold value I2When the sum of the current is not greater than the rated output current of the charging pile, the output current of the charging pile is indicated to operate within a safety range; when the sum of the current is larger than the rated output current of the charging pile, the potential safety hazard exists in the charging process of the charging pile, the situation that the instantaneous current is too large possibly occurs, and further detection is needed.
S203: judging the current sum
Figure BDA0002252937500000096
Whether or not it is greater than the third current threshold I3If yes, go to step S204,if not, go to step S206.
S204: and the electric connection of the charging end M is disconnected, and the control device controls the sliding structure at the position of the charging arm M to move towards the direction close to the bracket, so as to drive the charging end to contract inwards.
S205: and the charging end with the number of 1 to the charging end with the number of M normally charge and operate.
The third current threshold I3For the current protection threshold of the charging pile, preferably, I3＝β*IeBeta is 1.1-1.3, when the current is added
Figure BDA0002252937500000101
Greater than a third current threshold I3When the output current of the charging pile exceeds a safety threshold, the charging end at the position of the charging arm M needs to be disconnected, and the control device controls the sliding structure at the position of the charging arm M to move towards the direction close to the bracket so as to drive the charging end to contract inwards; when the current sum
Figure BDA0002252937500000102
Is not greater than a third current threshold I3If the output current of the charging pile does not exceed the safety threshold, the electric vehicle at the position of the charging arm M can be normally charged, and step S206 is executed.
S206: detecting the internal temperature of the charging pile electrical box, and judging whether the internal temperature of the charging pile electrical box exceeds a first temperature threshold value T1If yes, go to step S207, otherwise return to step S205.
Wherein the first temperature threshold T1For filling the inside temperature of electrical apparatus incasement under full load state of electric pile, exceed first temperature threshold value T when the inside temperature of electrical apparatus incasement1When the temperature in the electric appliance box is too high, the heat dissipation device needs to be started to cool; when the internal temperature of the electric appliance box does not exceed the first temperature threshold T1When the electric appliance box is used, the heat dissipation inside the electric appliance box is good, and the charging pile can continue to normally operate.
S207: and opening a heat dissipation device inside the electric appliance box, and cooling the inside of the charging pile electric appliance box.
S208: electric box for judging charging pileWhether the internal temperature exceeds a second temperature threshold T2。
The second temperature threshold T2Greater than a first temperature threshold T1Preferably, T2＝α*T1And the value of alpha is 1.2-1.5. After the heat dissipation device is opened, the internal temperature of the charging pile electric box exceeds a second temperature threshold value T2That is, it is described that the cooling of the heat sink to the inside of the electrical box does not reach the ideal effect, and there may be a fault inside the electrical box, step S209 is executed; after the heat dissipation device is started, the internal temperature of the charging pile electric box does not exceed a second temperature threshold T2The operation in the electrical box and the heat dissipation are normal, and the process returns to step S205.
S209: judging whether the temperature of the charging plug of the charging end at the position of the charging arm M exceeds a third temperature threshold T3If yes, go to step S210, otherwise, go back to step S207.
The third temperature threshold T3Is the temperature value when the charging plug of the charging end normally works, and when the temperature of the charging plug exceeds a third temperature threshold value T3Then, it is indicated that the charging terminal may have charging abnormality, and the fault location needs to be further detected, and step S210 is executed; when the charging plug temperature does not exceed the third temperature threshold T3, it indicates that the charging terminal is in normal charging operation, and the process returns to step S207.
S210: detecting whether the output current of the charging end at the position M of the charging arm is greater than the safe current threshold of the electric vehicle, if so, indicating that a fault occurs in the electric quantity distribution process of an internal control device of the charging pile, and executing a step S211; if not, it indicates that the charging terminal is faulty, and step S204 is executed.
S211: fill electric pile controlling means control and fill electric pile and make the inside malfunction alerting suggestion of electrical apparatus case.
When the output current of the charging end at the position of the charging arm M is larger than the safe current threshold value of the electric vehicle, the fault occurs in the process of distributing the electric quantity of the internal control device of the charging pile, and the abnormal temperature of the charging plug at the position is the abnormal current caused by the electric quantity distribution, so that the overhigh temperature is caused; when the output current of the charging end at the position M of the charging arm is not greater than the safe current threshold value of the electric vehicle, the fact that the temperature of the charging plug at the position is overhigh is indicated to be that the temperature of the charging end is abnormal, the charging end needs to be disconnected, and an alarm prompt of the fault of the charging end is given.
The charging pile charging regulation and control protection method provided by the embodiment includes the steps that when a vehicle to be charged is parked at the position corresponding to the idle charging arm, a control system of a charging pile adjusts whether the electric vehicle at the position corresponding to the idle charging arm can be charged according to the loaded condition, whether the electric vehicle at the position corresponding to the idle charging arm can be charged is judged by adjusting the output current of the charging end which is charging, meanwhile, a control device controls a sliding structure corresponding to the charging arm to move outwards to drive the charging end to extend out, further, the electric vehicle is charged, the utilization rate of the charging pile is improved, and meanwhile, the safety of the charging process of the charging pile is guaranteed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A charging pile is characterized by comprising a base (1), a support (2), an electric appliance box (3) arranged at the top end of the base (1), a control device arranged in the electric appliance box (3) and a heat dissipation device positioned in the control device, wherein the support (2) is arranged at the top end of the base (1) and extends towards two sides, at least four charging arms (5) are arranged at two sides of the support (2), a sliding structure (7) is arranged in the charging arms (5), the sliding structure (7) is connected with a charging end (6), a driving device drives the sliding structure (7) to move in the charging arms (5), the expansion and contraction of the charging end (6) are adjusted by adjusting the position of the sliding structure (7) in the charging arms (5), one end, close to the support (2), of the sliding structure (7) is connected with a spiral cable (76), the other end of the spiral cable (76) is connected with a control device.
2. The charging pile according to claim 1, characterized in that the charging arm (5) comprises a rectangular housing (51), a containing cavity (52) is formed inside the housing (51), the sliding structure (7) is driven by a driving device to slide inside the containing cavity (52), two sliding rails (53) are arranged on the upper side and the lower side of the inner wall of the housing (51), the two sliding rails (53) are arranged oppositely, and the sliding rails (53) are arranged to form triangular protruding rails matched with the sliding structure (7).
3. Charging pile according to claim 2, characterised in that a moving slot (54) is provided on the underside of the housing (51), the moving slot (54) enabling the outside of the charging arm (5) to communicate with the inside of the housing (52), the charging end (6) connected to the sliding structure (7) projecting outwards through the moving slot (54), the length of the moving slot (54) being smaller than the length of the charging arm (5), the moving slot (54) being provided at the end remote from the bracket (2).
4. A charging pile according to claims 1 to 3, characterized in that the sliding structure (7) comprises a sliding block (71) and a pulley (72), the sliding block (71) is arranged in a rectangular structure, the pulley (72) is connected with one side of the sliding block (71) in a detachable connection mode through a connecting shaft (73), a cable connecting end (74) is arranged on one side of the sliding block (71) facing away from the pulley (72), a charging cable (75) is connected to the lower portion of the cable connecting end (74), and the tail end of the charging cable (75) is connected with the charging end (6).
5. The charging pile according to claim 4, characterized in that a sliding groove (77) corresponding to the triangular protruding track is formed in the pulley (72), and the sliding groove (77) is formed in the circumferential side wall of the pulley (72).
6. A charging regulation and control protection method, characterized in that the charging pile of any one of claims 1 to 5 is used, and the charging regulation and control method comprises the following steps:
s101: the charging pile is in an open state, and the charging arm M in an idle state displays an idle warning mark;
s102: the electric vehicle drives into an idle parking place M according to the warning mark, and an appointed charging instruction is input into a display box of the charging pile;
s103: the control device calculates the sum of charging currents of all charging terminals currently being charged
Figure FDA0002252937490000021
And comparing with the first current threshold to determine whether the sum of the currents is greater than the first current threshold I1If yes, executing step S104, otherwise executing step S201;
s104: the control device starts to adjust current distribution of the plurality of current charging ends;
s105: the electric vehicle sends the electric quantity information of the storage battery to the charging pile;
s106: according to the charging priority level calculated by the control device, reducing the output current of the corresponding charging end;
s107: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure FDA0002252937490000022
And calculating the sum of the current charging current
Figure FDA0002252937490000023
And a second current threshold I2Judging whether the difference is larger than a preset difference delta I, if so, executing step S201; if not, executing step S108;
s201: the control device controls the sliding structure at the position of the charging arm M to move outwards to drive the charging end to extend outwards, and a user can connect the charging end with the electric vehicle for charging;
s202: the control device calculates the sum of charging currents of the charging terminals currently being charged
Figure FDA0002252937490000024
Judging the current sum
Figure FDA0002252937490000025
Whether or not it is larger than the second powerFlow threshold I2If yes, executing step S203, otherwise, executing step S205, where the charging pile operates in the current charging state;
s203: judging the current sum
Figure FDA0002252937490000026
Whether or not it is greater than the third current threshold I3If yes, executing step S204, otherwise executing step S206;
s206: detecting the internal temperature of the charging pile electrical box, and judging whether the internal temperature of the charging pile electrical box exceeds a first temperature threshold value T1If yes, executing step S207, otherwise returning to step S205;
s207: opening a heat dissipation device inside the electric box, and cooling the inside of the charging pile electric box;
s208: whether the internal temperature of the charging pile electric box exceeds a second temperature threshold value T or not is judged2；
S209: judging whether the temperature of the charging plug of the charging end at the position of the charging arm M exceeds a third temperature threshold T3If yes, go to step S210, otherwise, go back to step S207;
s210: detecting whether the output current of the charging end at the position M of the charging arm is greater than the safe current threshold of the electric vehicle, if so, indicating that a fault occurs in the electric quantity distribution process of an internal control device of the charging pile, and executing a step S211; if not, the charging end is judged to be in fault, and step S204 is executed;
s211: fill electric pile controlling means control and fill electric pile and make the inside malfunction alerting suggestion of electrical apparatus case.
7. The charge regulation protection method of claim 6, wherein the first current threshold I is1Rated output current I for charging pilee80% of the first current threshold I, the second current threshold I2And the rated output current I of the charging pileeEqual, the third current threshold I3The current protection threshold value for the charging pile.
8. According to claim 6The charging regulation and protection method is characterized in that the first temperature threshold T1For the internal temperature of the electrical box under the full load state of the charging pile, the second temperature threshold value T2Greater than a first temperature threshold T1Said third temperature threshold T3The temperature value of the charging plug at the charging end when the charging plug works normally.
9. The charging regulation protection method according to claim 6, wherein when the current is regulated according to the charging priority, the regulation is performed according to the following formula:
Figure FDA0002252937490000031
the A1, A2 and the like are all coefficients smaller than 1, the output currents i1 and i2 … … im of the charging ends which are currently charged are equal, m is smaller than the number n of the charging arms, and the sizes of A1 to Am are decreased in sequence.
10. The charge regulation protection method of claim 6, wherein the third current threshold I3＝β*IeBeta is 1.1 to 1.3; the second temperature threshold T2＝α*T1And the value of alpha is 1.2-1.5.
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