CN116176328A - Charging pile capable of preventing collision and achieving self-locking of leakage - Google Patents
Charging pile capable of preventing collision and achieving self-locking of leakage Download PDFInfo
- Publication number
- CN116176328A CN116176328A CN202310461266.5A CN202310461266A CN116176328A CN 116176328 A CN116176328 A CN 116176328A CN 202310461266 A CN202310461266 A CN 202310461266A CN 116176328 A CN116176328 A CN 116176328A
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- positive electrode
- wire
- line
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B60L53/60—Monitoring or controlling 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the technical field of charging of new energy automobiles, in particular to a charging pile capable of preventing collision and self-locking in leakage. The cable also comprises a current change comparison structure for the negative electrode wire and the positive electrode wire, and after the current change comparison structure detects that the change of the negative electrode wire and the positive electrode wire exceeds a certain threshold value, the charging process is disconnected or the alarm is prompted. Based on the current in the positive and negative electrode wires, the contact pretightening force of the two ports and the positive and negative electrodes of the vehicle is respectively adjusted, one of the positive and negative electrode wires has current reduction, the contact force at one path of the positive and negative electrode wires is reduced, the overcurrent is further reduced, and the time and amplitude of the unequal change of the current are amplified.
Description
Technical Field
The invention relates to the technical field of new energy automobile charging, in particular to a charging pile capable of preventing collision and self-locking electric leakage.
Background
With the development of the automobile industry, new energy automobiles are accepted and used by more and more people, the duty ratio of the new energy automobiles is also gradually increased, and the new energy automobiles use electric energy to operate and need to be charged, so that more and more charging stations are required to be built as same as a gas station to meet the charging requirement of the new energy automobiles.
Charging station installation a plurality of fills electric pile and charges for the car, mostly self-service plug structure, as shown in fig. 1, in the driver inserts the socket of placing on the foundation pile in the car interface, waits to charge to accomplish.
In the prior art, the national standard charging interface has two standards in two directions at present, namely an alternating current charging interface which is used for slow charging and a direct current charging interface which is used for fast charging, wherein the standards of the interfaces are shown in fig. 2, the national standard only draws specific ranges of the interface size and form of the charging pile, but the design of other structures of the charging pile has no detailed requirements, and the interface is limited only in terms of some performance parameters and the like.
In the fast charging operation, the charging safety should be focused, because the current is very large, even if only one percent of the current flows from an unexpected path, the current can also cause remarkable damage, the interface leakage and the leakage are prevented, the good operation performance of the charging pile is maintained, and the like are points which need to be focused in the design process of the charging pile, currently, the detection of the leakage is generally to detect electric signals on some possible leakage paths to know whether the leakage occurs, then the processing structure is used for determining whether the charging process is disconnected or the warning is given out, and after the leakage occurs, the current is mostly conducted through the grounding wire, however, if the leakage does not occur, a dangerous factor is necessarily formed, the current leakage detection of the current charging pile cannot be comprehensively detected, and the leakage condition occurring on some unexpected paths cannot be known.
Disclosure of Invention
The invention provides a charging pile capable of preventing collision and self-locking leakage, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the charging pile comprises a socket, a cable and a foundation pile, wherein the foundation pile is fixed on a foundation, the cable extends out of the foundation pile, the end part of the cable is provided with the socket,
the socket comprises a negative electrode port and a positive electrode port, the cable comprises a negative electrode wire and a positive electrode wire, the negative electrode wire is connected with the negative electrode port, the positive electrode wire is connected with the positive electrode port, and electrode contact force adjusting structures are arranged in the negative electrode port and the positive electrode port.
The adjusting logic of the contact force adjusting structure is to adjust the contact pretightening force of the two ports and the negative electrode contact and the positive electrode contact in the vehicle interface based on the current passing through the negative electrode line and the positive electrode line respectively, when electric leakage occurs, the current passing through the negative electrode line and the positive electrode line has a small difference, because part of the current does not need to return from the other path after reaching the vehicle, but is discharged from the electric leakage path, so that the current passes in and out of the positive electrode line and the negative electrode line by different amounts, the foundation pile is arranged on the subsequent grounding position and other paths to compensate the non-uniform charge of the part, under the normal use state, the current in the positive electrode line and the negative electrode line is synchronously raised or synchronously lowered, if the electric leakage occurs at the local position in the charging process, one path in the positive electrode line and the negative electrode line has current reduced, the contact force at the reduced path is reduced, the contact resistance is slightly increased, the current passing through the path is further reduced, the current reduction is higher than the current change caused by the pure contact resistance, and the current is changed due to the fact of a parallel circuit when the electric leakage occurs.
The time and amplitude of the unequal change of the current are lengthened and enlarged, then the unequal change of the current is recognized by a circuit of the charging pile, then a user is informed of the leakage risk and operates to reduce the leakage current, the danger caused by large current in quick charging is prevented, and only small current is used for charging or the charging is directly disconnected.
The cable also comprises a current change comparison structure for the negative electrode wire and the positive electrode wire, and when the current change comparison structure detects that the change of the negative electrode wire and the positive electrode wire exceeds the charging rated value by 1% or exceeds 0.5A, the charging process is disconnected or the alarm is prompted.
The current change of the negative electrode wire and the positive electrode wire can be identified by arranging an induction circuit beside the cable, and can be identified by directly connecting a current detection structure in series on the negative electrode wire and the positive electrode wire, but the resistance on the two wires can be changed by directly connecting the current detection structure in series, the current is larger, the required detection structure performance requirement is higher, and the structure is relatively complex.
The negative electrode port comprises a negative electrode structural member, a negative electrode reed, a negative electrode adsorption body and a negative electrode electromagnet, the cable also comprises a negative electrode induction wire and a positive electrode induction wire, the negative electrode structural member is fixed in the socket by injection molding, the negative electrode reed used as an electric contact is arranged in the negative electrode structural member, the negative electrode reed is connected with the negative electrode wire, the non-contact side surface of the negative electrode reed is provided with the negative electrode adsorption body, the negative electrode electromagnet is arranged at the side of the negative electrode structural member, the magnetic pole of the negative electrode electromagnet is opposite to the negative electrode adsorption body,
the negative electrode induction wire in the cable is closely adjacent to the negative electrode wire, the positive electrode induction wire is closely adjacent to the positive electrode wire, the negative electrode induction wire and the positive electrode induction wire are wound on the negative electrode electromagnet,
when the current in the negative electrode line is reduced, the direction of the induced current in the negative electrode induction line is to generate a force on the negative electrode electromagnet to attract the negative electrode adsorption body,
when the current in the positive electrode line is reduced, the direction of the induced current in the positive electrode induction line is to generate a force on the negative electrode electromagnet which repels the negative electrode adsorption body,
the positive electrode port is internally provided with a positive electrode structural member, a positive electrode reed, a positive electrode adsorbing body and a positive electrode electromagnet which have the same structure as the negative electrode port, when the current in the positive electrode wire is reduced, the positive electrode induction wire generates a force for attracting the positive electrode adsorbing body on the positive electrode electromagnet, and when the current in the negative electrode wire is reduced, the negative electrode induction wire generates a force for repelling the positive electrode adsorbing body on the positive electrode electromagnet.
The negative electrode reed contacts with the negative electrode contact in the vehicle interface, when charging, current flows from the negative electrode contact to the charging pile, if the S pole faces the negative electrode electromagnet, the winding direction of the negative electrode wire on the negative electrode electromagnet is right-handed, when the current of the negative electrode wire is reduced, induced current in the same direction as the negative electrode wire is generated in a section, close to the negative electrode wire, of the negative electrode wire in the negative electrode induction wire loop, the negative electrode electromagnet faces one end of the negative electrode adsorbing body to generate an N pole magnetic field, the negative electrode reed is attracted to be released from contact with the negative electrode contact, the contact force of the electric connection of the charging negative electrode is reduced, the positive electrode induction wire also generates a magnetic field on the negative electrode electromagnet, the magnetic field S pole faces the negative electrode adsorbing body, when the current in the negative electrode wire and the positive electrode wire is synchronously changed, the attraction and the repulsive magnetic field force generated by the negative electrode induction wire at the two electromagnets are mutually offset, the contact force of the two charging electrode ports is not changed, and unequal contact force is generated at the two charging electrode ports only when the current change in the positive electrode wire is inconsistent, the current change is continuously changed, the contact force of the two contact force is reduced, the current is more than that the current in the negative electrode wire is amplified, the negative electrode wire is further amplified, the current is attracted to the negative electrode contact current is further amplified, and the current is further amplified is generated, and the current is finally is detected, and the change is generated.
The current change comparison structure is a correction comparison line, the correction comparison line is arranged on the symmetrical plane of the negative electrode line and the positive electrode line, and when the current in the correction comparison line exceeds 1% of the charging rated value or exceeds 0.5A, the charging process is disconnected or the warning is prompted.
The correction comparison line positioned on the vertical plane in the negative line and the positive line is not generated by induced current under the normal operation state, because the magnetic fields generated by the negative line and the positive line are completely offset in the loop of the correction comparison line, the magnetic fields with different intensities are generated only when the currents in the negative line and the positive line are inconsistent, and the current is generated only when the number of the magnetic induction lines in the loop of the correction comparison line is changed.
The negative electrode induction line and the positive electrode induction line are symmetrically arranged on the symmetrical planes of the negative electrode line and the positive electrode line.
The negative electrode induction line should sense the current in the negative electrode line as much as possible and reduce the current in the induction positive electrode line, and the positive electrode induction line is the same, but the induction can not be eliminated, and only the crossed induction of the negative electrode induction line and the positive electrode induction line is symmetrical, so that the inconsistency of the induction currents in the negative electrode induction line and the positive electrode induction line caused by the asymmetry of the arrangement is prevented.
The section of the negative electrode induction line loop far away from the negative electrode line and the section of the positive electrode induction line loop far away from the positive electrode line are twisted and wound with each other and wrapped by using a shielding layer.
The negative electrode induction wire and the positive electrode induction wire need to form a loop to generate current at the electromagnet to act, one section of each section close to the main circuit is taken for induction, and the farther section is provided with a shielding layer for wrapping so as to prevent more induction current interference.
The shielding layer is a red copper wire mesh. The high conductivity improves the magnetic field shielding effect.
The foundation pile comprises a separation shell, a side cavity, a baffle plate, a pre-tightening spring, a stop block and a partition electromagnet,
the isolating shell is internally provided with a contact body used for connecting the charging quasi-input line, the negative electrode line and the positive electrode line, the contact body is provided with a contact inclined plane at the contact surface, the side cavity is fixed on the side surface of the isolating shell, the side cavity is internally provided with a baffle plate which is supported by a pre-tightening spring, the release direction of the baffle plate is to insert between the contact inclined planes to isolate the charging quasi-input line from the negative electrode line and from the positive electrode line, the baffle block is slidably arranged on the side wall of the side cavity, and the baffle plate is limited by the baffle block,
the isolating electromagnet is arranged on one side of the side cavity, is positioned beside the baffle plate, and attracts the baffle plate to loosen the limit of the baffle plate when the outside collides with vibration or corrects the comparison line to give out signals.
The baffle is loaded in the side cavity in advance, the pre-tightening spring accumulates potential energy, after the electromagnet is cut off to obtain a control signal, the baffle is attracted to prevent the baffle from shielding, the baffle is inserted between the contacts under the action of the pre-tightening spring, the input line of the charging pile is isolated from being electrically connected with all parts in the charging pile, the impact strength and the sealing are fully considered in manufacturing of the isolation shell, and the danger is caused by the fact that the end of the input line of the charging pile is exposed after the charging pile is failed or impacted.
The charging pile further comprises a normally-off circuit, a spherical shell, a vibration detection ball and a supporting rod, wherein the normally-off circuit is sequentially connected with the spherical shell and the isolating electromagnet, the normally-off circuit is wound on the isolating electromagnet, two contacts are arranged at the bottom of the inner wall of the spherical shell, the vibration detection ball is arranged in the spherical shell and is overhead through the supporting rod, and the vibration detection ball is a metal piece.
When the charging pile is impacted, the vibration of the vibration detection ball is low in strength and broken, the vibration detection ball falls to the bottom of the spherical shell and is communicated with a normally-off circuit, the electromagnet is cut off to obtain an electric attraction stop block, the charging pile input line is safely isolated by the action of the partition plate, and the charging pile can be reused only after the spherical shell, the vibration detection ball and the support rod are fully detected and replaced by a maintainer in the process of the charging pile.
The correction comparison line is connected with the amplifying circuit, and the amplifying circuit of the amplifying circuit is wound on the isolating electromagnet. The correction comparison line detects the current variation difference of the negative line and the positive line, the induction current can be generated on the correction comparison line only when the difference exists between the negative line and the positive line, the induction current is possibly smaller, the starting of the blocking electromagnet can be advanced after the signal is amplified by the amplifying circuit, the amplifying circuit can be constructed by using a triode, the maximum current of the triode can bear more than 1A, and the current of 1A can completely drive the blocking electromagnet to change the position of the stop block.
Compared with the prior art, the invention identifies the current change condition in the positive and negative electrode wires by arranging the additional positive and negative electrode induction wires and the correction comparison wires in the charging pile cable, when the current in the positive and negative electrode wires is equal to the same time of in-and-out, the current in the positive and negative electrode induction wires does not influence the interface, the correction comparison wires also do not generate current to carry out the disconnection action of the charging process, the action of loosening the contact force of the reed at the interface is carried out only when the current change in the positive and negative electrode wires is inconsistent, the current change difference value process is continued, the leakage condition is continued and amplified, the correction comparison wires induce the current change difference value condition, the action of disconnecting and charging is carried out at the charging pile input wire, the leakage risk is prevented, the vibration detection ball also detects whether the charging pile is impacted, after the impact occurs, maintenance personnel are required to detect the affected condition of the charging pile, after the maintenance is completed, the separator is required to be reset, the vibration detection ball, the ball shell and the support rod are required to be replaced, and the charging pile can be restored to work, and the electricity safety of the charging pile is ensured.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic illustration of the attachment profile of the present invention to a vehicle;
FIG. 2 is an end view of the socket of the present invention;
FIG. 3 is a cross-sectional view of an arrangement within a cable of the present invention;
FIG. 4 is a schematic view of the structure within the socket of the present invention;
fig. 5 is view a of fig. 4;
FIG. 6 is a schematic view of the foundation pile of the present invention;
FIG. 7 is a schematic diagram of the structure of two current loading sources of the blocking electromagnet of the present invention;
it should be noted that the drawings only draw the structure related to the application, and other structures of the charging pile for realizing the functions of the charging pile are all required to be realized by adopting the prior art, and the drawings are not expressed;
reference numerals in the drawings: 1-jack, 11-negative pole mouth, 111-negative pole structure, 112-negative pole reed, 113-negative pole adsorption body, 114-negative pole electromagnet, 12-positive pole mouth, 2-cable, 21-negative pole line, 22-positive pole line, 23-negative pole induction line, 24-positive pole induction line, 25-correction comparison line, 29-shielding layer, 3-foundation pile, 31-isolation shell, 32-side cavity, 33-baffle, 34-pretension spring, 35-stop block, 36-partition electromagnet, 39-contact inclined plane, 41-normal circuit, 42-spherical shell, 43-vibration detecting ball, 44-support rod, 5-amplifying circuit, 8-charging pile input line, 9-car interface, 91-negative pole contact, 92-positive pole contact.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The utility model provides a charging pile that can anticollision and electric leakage auto-lock, fills the pile and includes socket 1, cable 2, foundation pile 3 is fixed on the basis, extends cable 2 on the foundation pile 3, and cable 2 tip sets up socket 1,
the socket 1 comprises a negative electrode port 11 and a positive electrode port 12, the cable 2 comprises a negative electrode wire 21 and a positive electrode wire 22, the negative electrode wire 21 is connected with the negative electrode port 11, the positive electrode wire 22 is connected with the positive electrode port 12, and electrode contact force adjusting structures are arranged in the negative electrode port 11 and the positive electrode port 12.
The adjusting logic of the contact force adjusting structure is to adjust the contact pretightening force between two ports and the negative electrode contact 91 and the positive electrode contact 92 in the vehicle interface 9 respectively based on the current passing through the negative electrode wire 21 and the positive electrode wire 22, when the electric leakage occurs, a small amount of difference exists between the current passing through the negative electrode wire 21 and the positive electrode wire 22, because part of the current does not need to return from the other path after reaching the vehicle, but is discharged from the electric leakage path, the current is led to enter and exit different amounts on the positive electrode wire and the negative electrode wire, the foundation pile is arranged on the subsequent grounding position and other paths to compensate the non-uniform charge of the part, under the normal use state, the current in the positive electrode wire and the negative electrode wire is synchronously increased or synchronously reduced, if the electric leakage occurs at the local position in the charging process, one path in the positive electrode wire and the negative electrode wire has current reduced, the contact force at the position is reduced, the contact resistance is slightly increased, the path can further reduce the overcurrent current flow, the current is reduced by the current change caused by the pure contact resistance, and the current is higher than the current change caused by the pure contact resistance, because the current is a parallel circuit when the electric leakage occurs.
The time and amplitude of the unequal change of the current are lengthened and enlarged, then the unequal change of the current is recognized by a circuit of the charging pile, then a user is informed of the leakage risk and operates to reduce the leakage current, the danger caused by large current in quick charging is prevented, and only small current is used for charging or the charging is directly disconnected.
The cable 2 further includes a current change comparing structure for the negative electrode line 21 and the positive electrode line 22, which detects that the change of the negative electrode line 21 and the positive electrode line 22 exceeds the charging rating by 1% or exceeds 0.5A, and disconnects the charging process or prompts an alarm.
The current change of the negative electrode wire 21 and the positive electrode wire 22 can be identified by arranging an induction circuit beside the cable, and can also be identified by directly connecting a current detection structure in series on the negative electrode wire 21 and the positive electrode wire 22, but the resistance on the two wires can be changed by directly connecting the current detection structure in series, the current is larger, the required detection structure performance requirement is higher, and the structure arrangement is relatively complex.
The negative electrode port 11 comprises a negative electrode structural member 111, a negative electrode reed 112, a negative electrode adsorbing body 113 and a negative electrode electromagnet 114, the cable 2 also comprises a negative electrode induction wire 23 and a positive electrode induction wire 24, the negative electrode structural member 111 is fixed in the socket 1 by injection molding, the negative electrode reed 112 used as electric contact is arranged in the negative electrode structural member 111, the negative electrode reed 112 is connected with the negative electrode wire 21, the non-contact side surface of the negative electrode reed 112 is provided with the negative electrode adsorbing body 113, the negative electrode electromagnet 114 is arranged at the side of the negative electrode structural member 111, the magnetic pole of the negative electrode electromagnet 114 is opposite to the negative electrode adsorbing body 113,
the negative electrode induction wire 23 is closely adjacent to the negative electrode wire 21 in the cable, the positive electrode induction wire 24 is closely adjacent to the positive electrode wire 22, the negative electrode induction wire 23 and the positive electrode induction wire 24 are wound on the negative electrode electromagnet 114,
when the current in the anode line 21 decreases, the direction of the induced current in the anode induction line 23 is such that a force attracting the anode adsorbate 113 is generated on the anode electromagnet 114,
as the current in the positive electrode wire 22 decreases, the direction of the induced current in the positive electrode induction wire 24 is such that a force is generated on the negative electromagnet 114 that repels the negative adsorbate 113,
the positive electrode port 12 is provided with a positive electrode structural member, a positive electrode reed, a positive electrode adsorbent and a positive electrode electromagnet which have the same structure as the negative electrode port 11, and when the current in the positive electrode wire 22 decreases, the positive electrode induction wire 24 generates a force on the positive electrode electromagnet which attracts the positive electrode adsorbent, and when the current in the negative electrode wire 21 decreases, the negative electrode induction wire 23 generates a force on the positive electrode electromagnet which repels the positive electrode adsorbent.
As shown in fig. 4 and 5, the relationship between the upper and lower and left and right is illustrated in the view: the negative electrode reed 112 contacts with the negative electrode contact 91 in the vehicle interface, when charging, current flows from the negative electrode contact 91 to the charging pile, if the S pole of the magnetic pole in the adsorbing body 113 faces the negative electrode electromagnet 114, the winding direction of the negative electrode wire 23 on the negative electrode electromagnet 114 is right-handed, when the current of the negative electrode wire 21 is reduced, induced current which is in the same direction as the negative electrode wire 21 is generated in a section, close to the negative electrode wire 21, of the negative electrode induction wire 23 on the negative electrode electromagnet 114 is right-handed, the negative electrode electromagnet 114 generates an N pole magnetic field at one end, facing the negative electrode adsorbing body 113, of the negative electrode reed 112, the contact between the negative electrode reed and the negative electrode contact 81 is released, the contact force of the electric connection of the charging negative electrode is reduced, and the positive electrode induction wire 24 also generates a magnetic field on the negative electrode electromagnet 114, when the current in the negative electrode line 21 and the current in the positive electrode line 22 are synchronously changed, the attraction magnetic field acting force and the repulsion magnetic field acting force generated by the positive electrode induction line and the negative electrode induction line at the two electromagnets are in a mutually offset state, the contact force of the two charging electrode ports are not changed, the unequal contact force is generated at the two charging electrode ports only when the current changes in the positive electrode line and the negative electrode line are inconsistent, the two contact forces are continuously changed, when the current on the negative electrode line is reduced more than that on the positive electrode line, the negative electrode reed 112 is attracted by the negative electrode adsorption body 113 to open, the contact with the negative electrode contact 91 is reduced, the current is further reduced, the current change generated by the leakage is amplified, and finally the internal detection is known.
The current change comparison structure is a correction comparison line 25, the correction comparison line 25 is arranged on the symmetrical plane of the negative electrode line 21 and the positive electrode line 22, and when the current in the correction comparison line 25 exceeds 1% of the charging rated value or exceeds 0.5A, the charging process is disconnected or a prompt alarm is given.
As shown in fig. 3, the correction comparison line 25 located on the vertical plane of the negative electrode line 21 and the positive electrode line 22 should be free from induced current generation in the normal operation state, because the magnetic fields generated by the negative electrode line 21 and the positive electrode line 22 are completely offset in the loop of the correction comparison line 25, and only when the currents in the negative electrode line 21 and the positive electrode line 22 are inconsistent, the magnetic fields with different intensities are generated, and the number of the magnetic induction lines in the loop of the correction comparison line 25 is changed, so that the currents are generated.
The negative electrode sensing line 23 and the positive electrode sensing line 24 are symmetrically arranged with respect to the symmetry plane of the negative electrode line 21 and the positive electrode line 22.
The negative electrode induction line 23 should induce the current in the negative electrode line 21 as much as possible to reduce the current in the positive electrode line 22, and the positive electrode induction line 24 is similar, but this induction cannot be eliminated, but the two can be symmetrical only by the crossing induction, so that the inconsistency of the induced currents in the negative electrode induction line 23 and the positive electrode induction line 24 due to the asymmetry of the arrangement is prevented.
The section of the negative electrode induction line 23, which is far away from the negative electrode line 21, and the section of the positive electrode induction line 24, which is far away from the positive electrode line 22, are mutually twisted and wrapped by a shielding layer 29.
As shown in fig. 3 and 4, the negative electrode induction wire 23 and the positive electrode induction wire 24 need to form a loop to generate current at the electromagnet to act, and a section close to the main circuit is taken to perform induction, and a shielding layer 29 is arranged at a far section to wrap the far section so as to prevent more induction current interference.
The shielding layer 29 is a red copper wire mesh. The high conductivity improves the magnetic field shielding effect.
The foundation pile 3 comprises a separation shell 31, a side cavity 32, a partition plate 33, a pre-tightening spring 34, a stop block 35 and a blocking electromagnet 36,
the isolating shell 31 is internally provided with a contact body used for connecting the charging standard to the input line 8, the negative electrode line 21 and the positive electrode line 22, the contact body is provided with a contact inclined surface 39 at the contact surface, the side cavity 32 is fixed on the side surface of the isolating shell 31, the side cavity 32 is internally provided with a baffle 33 which is supported by a pre-tightening spring 34, the release direction of the baffle 33 is to be inserted between the contact inclined surfaces 39 to isolate the charging standard to the input line 8, the negative electrode line 21 and the positive electrode line 22, a stop block 35 is slidably arranged on the side wall of the side cavity 32, the stop block 35 limits the baffle 33,
the blocking electromagnet 36 is arranged at one side of the side cavity 32, the blocking electromagnet 36 is arranged beside the baffle 35, and when the external impact vibration occurs or the signal is given by the correction comparison line 25, the blocking electromagnet 36 attracts the baffle 35 to loosen the limit of the baffle 33.
As shown in fig. 6, the separator 33 pre-charges the pre-tightening spring 34 loaded in the side cavity 32, after the blocking electromagnet 36 gets the control signal, the stopper 35 is attracted to prevent the separator 33 from being blocked, the separator 33 is inserted between the contact bodies under the action of the pre-tightening spring 34, the electric connection between the charging pile input wire 8 and all the components in the charging pile is isolated, the manufacturing of the isolation shell 31 should fully consider the impact strength and sealing, and the danger caused by the exposure of the input wire end of the charging pile after the charging pile is failed or impacted is prevented.
The charging pile further comprises a normally-off circuit 41, a spherical shell 42, a vibration detection ball 43 and a supporting rod 44, wherein the normally-off circuit 41 is sequentially connected with the spherical shell 42 and the isolating electromagnet 36, the normally-off circuit 41 is wound on the isolating electromagnet 36, two contacts are arranged at the bottom of the inner wall of the spherical shell 42, the vibration detection ball 43 is arranged in the spherical shell 42 and is overhead through the supporting rod 44, and the vibration detection ball 43 is a metal piece.
As shown in fig. 7, when the charging pile is impacted, the vibration detecting ball 43 vibrates, the strength of the supporting rod 44 is low to break, the vibration detecting ball 43 falls to the bottom of the spherical shell 42 and is communicated with the normally-off circuit 41, the electromagnet 36 is cut off to electrically attract the stop block 35, the baffle 33 acts to safely isolate the input line 8 of the charging pile, and when the charging pile is impacted, the charging pile can be reused only after the spherical shell 42, the vibration detecting ball 43 and the supporting rod 44 are fully detected and replaced by a maintainer.
The correction comparison line 25 is connected to the amplifying circuit 5, and an amplifying circuit of the amplifying circuit 5 is wound around the blocking electromagnet 36. The correction comparison line 25 detects the current variation difference of the negative electrode line 21 and the positive electrode line 22, and only when the difference exists between the negative electrode line 21 and the positive electrode line 22, the correction comparison line 25 can generate induced current, the induced current is possibly smaller, the starting of the blocking electromagnet 36 can be advanced after the amplifying circuit 5 is used for amplifying signals, the amplifying circuit can be constructed by using a triode, the maximum current of the triode can bear more than 1A, and the current of 1A can completely drive the blocking electromagnet 36 to change the position of the stop block 35.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Can crashproof and electric pile that fills of electric leakage auto-lock, its characterized in that: the charging pile comprises a socket (1), a cable (2) and a foundation pile (3), wherein the foundation pile (3) is fixed on a foundation, the cable (2) extends from the foundation pile (3), the socket (1) is arranged at the end part of the cable (2),
the socket (1) comprises a negative electrode port (11) and a positive electrode port (12), the cable (2) comprises a negative electrode wire (21) and a positive electrode wire (22), the negative electrode wire (21) is connected with the negative electrode port (11), the positive electrode wire (22) is connected with the positive electrode port (12), and electrode contact force adjusting structures are arranged in the negative electrode port (11) and the positive electrode port (12).
2. The charging pile capable of preventing collision and self-locking in electric leakage according to claim 1, wherein: the cable (2) further comprises a current change comparison structure for the negative electrode wire (21) and the positive electrode wire (22), and the current change comparison structure detects that when the change of the negative electrode wire (21) and the positive electrode wire (22) exceeds a charging rated value by 1% or exceeds 0.5A, the charging process is disconnected or a prompt alarm is given.
3. The charging pile capable of preventing collision and self-locking in electric leakage according to claim 2, wherein: the negative electrode port (11) comprises a negative electrode structural member (111), a negative electrode reed (112), a negative electrode adsorption body (113) and a negative electrode electromagnet (114), the cable (2) also comprises a negative electrode induction wire (23) and a positive electrode induction wire (24), the negative electrode structural member (111) is fixed in a socket (1) in an injection molding way, the negative electrode reed (112) serving as an electric contact is arranged in the negative electrode structural member (111), the negative electrode reed (112) is connected with the negative electrode wire (21), the negative electrode adsorption body (113) is arranged on the non-contact side surface of the negative electrode reed (112), the negative electrode electromagnet (114) is arranged on the side of the negative electrode structural member (111), the magnetic pole of the negative electrode electromagnet (114) is opposite to the negative electrode adsorption body (113),
the negative electrode induction wire (23) is closely adjacent to the negative electrode wire (21) in the cable, the positive electrode induction wire (24) is closely adjacent to the positive electrode wire (22), the negative electrode induction wire (23) and the positive electrode induction wire (24) are wound on the negative electrode electromagnet (114),
when the current in the negative electrode wire (21) decreases, the direction of the induced current in the negative electrode induction wire (23) is such that a force attracting the negative electrode adsorbing body (113) is generated on the negative electrode electromagnet (114),
when the current in the positive electrode wire (22) decreases, the direction of the induced current in the positive electrode induction wire (24) is such that a force is generated on the negative electrode electromagnet (114) that repels the negative electrode adsorbent (113),
the positive electrode port (12) is internally provided with a positive electrode structural member, a positive electrode reed, a positive electrode adsorbing body and a positive electrode electromagnet which have the same structure as the negative electrode port (11), when the current in the positive electrode wire (22) is reduced, the positive electrode induction wire (24) generates a force for attracting the positive electrode adsorbing body on the positive electrode electromagnet, and when the current in the negative electrode wire (21) is reduced, the negative electrode induction wire (23) generates a force for repelling the positive electrode adsorbing body on the positive electrode electromagnet.
4. A charging pile capable of collision prevention and leakage self-locking according to claim 3, characterized in that: the current change comparison structure is a correction comparison line (25), the correction comparison line (25) is arranged on the symmetrical plane of the negative electrode line (21) and the positive electrode line (22), and when the current in the correction comparison line (25) exceeds the charging rated value by 1% or exceeds 0.5A, the charging process is disconnected or the warning is prompted.
5. A charging pile capable of collision prevention and leakage self-locking according to claim 3, characterized in that: the negative electrode induction line (23) and the positive electrode induction line (24) are symmetrically arranged on the symmetry plane of the negative electrode line (21) and the positive electrode line (22).
6. The charging pile capable of preventing collision and self-locking by electric leakage according to claim 5, wherein: the section of the negative electrode induction line (23) far away from the negative electrode line (21) and the section of the positive electrode induction line (24) far away from the positive electrode line (22) are mutually twisted and wrapped by using a shielding layer (29).
7. The charging pile capable of preventing collision and self-locking by electric leakage according to claim 6, wherein: the shielding layer (29) is a red copper wire mesh.
8. The charging pile capable of preventing collision and self-locking by electric leakage according to claim 4, wherein: the foundation pile (3) comprises a separation shell (31), a side cavity (32), a baffle plate (33), a pre-tightening spring (34), a stop block (35) and a blocking electromagnet (36),
the isolating shell (31) is internally provided with a contact body used for connecting the charging quasi-power input line (8) with the negative electrode line (21) and the positive electrode line (22), the contact body is provided with a contact inclined surface (39) at the contact surface, the side cavity (32) is fixed on the side surface of the isolating shell (31), the side cavity (32) is internally provided with a baffle plate (33) which is supported by a pre-tightening spring (34), the releasing direction of the baffle plate (33) is inserted between the contact inclined surfaces (39) to isolate the charging quasi-power input line (8) with the negative electrode line (21) and the positive electrode line (22), the baffle plate (35) is slidably arranged on the side wall of the side cavity (32), and the baffle plate (33) is limited by the baffle plate (35),
the isolating electromagnet (36) is arranged at one side of the side cavity (32), the isolating electromagnet (36) is positioned beside the baffle plate (35), and when the outside generates collision vibration or signals are given by the correction comparison line (25), the isolating electromagnet (36) attracts the baffle plate (35) to loosen the limit of the baffle plate (33).
9. The charging pile capable of preventing collision and self-locking by electric leakage according to claim 8, wherein: the charging pile is characterized by further comprising a normally-off circuit (41), a spherical shell (42), a vibration detection ball (43) and a supporting rod (44), wherein the normally-off circuit (41) is sequentially connected with the spherical shell (42) and the partition electromagnet (36), the normally-off circuit (41) is wound on the partition electromagnet (36), two contacts are arranged at the bottom of the inner wall of the spherical shell (42) and the normally-off circuit (41), the vibration detection ball (43) is arranged in the spherical shell (42) through the supporting rod (44) and is overhead, and the vibration detection ball (43) is a metal piece.
10. The charging pile capable of preventing collision and self-locking by electric leakage according to claim 8, wherein: the correction comparison line (25) is connected with the amplifying circuit (5), and an amplifying loop of the amplifying circuit (5) is wound on the isolating electromagnet (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310461266.5A CN116176328B (en) | 2023-04-26 | 2023-04-26 | Charging pile capable of preventing collision and achieving self-locking of leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310461266.5A CN116176328B (en) | 2023-04-26 | 2023-04-26 | Charging pile capable of preventing collision and achieving self-locking of leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116176328A true CN116176328A (en) | 2023-05-30 |
| CN116176328B CN116176328B (en) | 2023-07-25 |
Family
ID=86436848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310461266.5A Active CN116176328B (en) | 2023-04-26 | 2023-04-26 | Charging pile capable of preventing collision and achieving self-locking of leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116176328B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210212068U (en) * | 2019-05-20 | 2020-03-31 | 四川蔚宇电气有限责任公司 | Portable direct current rifle that charges and adopt stake of charging of this rifle that charges |
| CN113043887A (en) * | 2021-04-01 | 2021-06-29 | 安徽工程大学 | Automobile shared charging pile with automatic locking function |
| CN215793228U (en) * | 2021-07-15 | 2022-02-11 | 广州小鹏汽车科技有限公司 | Charging cable, charging device and vehicle component |
| CN114347828A (en) * | 2022-02-11 | 2022-04-15 | 皋金龙 | Electric automobile fills electric pile with cable automatic winding function |
| CN115742787A (en) * | 2021-09-03 | 2023-03-07 | 比亚迪股份有限公司 | Direct current charging stand for charging system of vehicle and charging system having the same |
-
2023
- 2023-04-26 CN CN202310461266.5A patent/CN116176328B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210212068U (en) * | 2019-05-20 | 2020-03-31 | 四川蔚宇电气有限责任公司 | Portable direct current rifle that charges and adopt stake of charging of this rifle that charges |
| CN113043887A (en) * | 2021-04-01 | 2021-06-29 | 安徽工程大学 | Automobile shared charging pile with automatic locking function |
| CN215793228U (en) * | 2021-07-15 | 2022-02-11 | 广州小鹏汽车科技有限公司 | Charging cable, charging device and vehicle component |
| CN115742787A (en) * | 2021-09-03 | 2023-03-07 | 比亚迪股份有限公司 | Direct current charging stand for charging system of vehicle and charging system having the same |
| CN114347828A (en) * | 2022-02-11 | 2022-04-15 | 皋金龙 | Electric automobile fills electric pile with cable automatic winding function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116176328B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205168210U (en) | Power battery high-voltage output power-off device | |
| CN207630978U (en) | Battery pack insulation fault location device | |
| CN205543132U (en) | Batteries of electric vehicle device | |
| US8963662B2 (en) | Arc chuteless DC current interruptor | |
| CN102324717B (en) | Leakage protection device | |
| CN116176328B (en) | Charging pile capable of preventing collision and achieving self-locking of leakage | |
| CN105620292B (en) | A kind of control system and method for automobile high voltage supply | |
| CN202616744U (en) | Leakage protector | |
| CN105869953A (en) | Switching device applied to low voltage, medium voltage and high voltage short circuit arc extinction | |
| US11120963B2 (en) | Double breaker switch | |
| CN208316155U (en) | A kind of 10KV all insulation distribution rack | |
| CN104051701A (en) | Safety device for a galvanic cell | |
| CN102364762B (en) | Leakage protection plug | |
| CN205789720U (en) | It is applied to low pressure, the switching device of medium-pressure or high pressure short circuit arc extinguishing | |
| CN205810668U (en) | Shunt Capacitor Unit switching intelligent breaker based on flexible divide-shut brake technology | |
| CN212365905U (en) | Circuit breaker | |
| CN202019116U (en) | Earth leakage protection plug | |
| CN212257288U (en) | 24V high-load mini automobile relay | |
| CN107508266B (en) | Controllable energy release device and controllable energy release method for neutral bus of high-voltage converter station | |
| CN208013326U (en) | A kind of metal box for accommodating counter of lightning arrester | |
| US20220149639A1 (en) | Method for operating a contactor | |
| CN214674354U (en) | Spare power automatic switching device for internal bridging transformer substation | |
| CN221366586U (en) | Circuit breaking protection device, power battery system and electric automobile | |
| CN106953307A (en) | Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR | |
| CN218868193U (en) | Prevent drawing arc and strike fire collection flow box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |