CN115742797B - Charging control method and charging system - Google Patents
Charging control method and charging systemInfo
- Publication number
- CN115742797B CN115742797B CN202211543551.3A CN202211543551A CN115742797B CN 115742797 B CN115742797 B CN 115742797B CN 202211543551 A CN202211543551 A CN 202211543551A CN 115742797 B CN115742797 B CN 115742797B
- Authority
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- China
- Prior art keywords
- charging
- electromagnet
- plate
- gun
- electric automobile
- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application is applicable to the technical field of charging, and provides a charging control method and a charging system, wherein the charging control method comprises the steps of controlling an electromagnet on a charging gun to work with a first current to generate a magnetic field after an opening signal is acquired, so that magnetic attraction is generated between the electromagnet and a charging seat on an electric automobile, and acquiring real-time pressure acquired by a pressure sensor on the charging gun; when the real-time pressure is greater than the preset pressure, the charging parameters of the electric automobile are determined according to the real-time pressure, the electromagnet is controlled to work with the second current to generate a magnetic field, the charging gun is kept inserted on the charging seat, and the electric automobile is charged according to the charging parameters. In the process of inserting the charging gun into the charging seat, the electromagnet on the charging gun is controlled to generate a magnetic field, and the charging gun and the charging plate on the charging seat generate magnetic attraction, so that a user can insert the charging gun into the charging seat with smaller force, and the experience of the user in charging the electric automobile by using the charging pile is improved.
Description
Technical Field
The application belongs to the technical field of charging, and particularly relates to a charging control method and a charging system.
Background
With the development of electric automobiles, the charging problem is more and more paid attention to, and users pay more and more attention to the convenience of charging. In the existing market, the charging gun used by the charging pile is connected with the electric automobile through the clamping structure, and because the weight of the charging gun and the charging cable is large, a user needs to use large force to connect the charging gun with the electric automobile, and bad experience is brought to the user.
Disclosure of Invention
The embodiment of the application provides a charging control method and a charging system, which can solve the problem that a charging gun is difficult to connect with an electric automobile.
In a first aspect, an embodiment of the present application provides a charging control method, including:
When an opening signal is obtained, controlling an electromagnet on a charging gun to work with a first current to generate a magnetic field, so that magnetic attraction is generated between the electromagnet and a charging seat on an electric automobile, and obtaining real-time pressure collected by a pressure sensor on the charging gun;
when the real-time pressure is higher than the preset pressure, determining charging parameters of the electric automobile according to the real-time pressure, and controlling the electromagnet to work with a second current to generate a magnetic field so as to enable the charging gun to be inserted into the charging seat, wherein the second current is higher than the first current;
And charging the electric automobile according to the charging parameters.
In a possible implementation manner of the first aspect, after the charging the electric vehicle according to the charging parameter, the method further includes:
and stopping charging the electric automobile after the electric automobile is charged, and controlling the electromagnet to work with the first current to generate a magnetic field.
In a possible implementation manner of the first aspect, after stopping charging the electric vehicle when the electric vehicle is charged, and controlling the electromagnet to operate with the first current to generate a magnetic field, the method further includes:
And stopping supplying power to the electromagnet after the stop signal is acquired.
In a possible implementation manner of the first aspect, the determining a charging parameter of the electric vehicle according to the real-time pressure includes:
determining the pressure range of the real-time pressure;
And determining a charging parameter corresponding to the pressure range, wherein the charging parameter comprises a charging voltage.
In a second aspect, an embodiment of the present application provides a charging system, including a charging pile and a charging seat on an electric automobile, where the charging pile includes a charging control unit and a charging gun, the charging gun includes a magnetic conductive plate, an insulating plate, a pressure sensor, an electromagnet, a high-voltage wire harness and a low-voltage wire harness, the magnetic conductive plate, the insulating plate, the pressure sensor and the electromagnet are sequentially attached to each other, a plurality of magnetic conductive sheets on the magnetic conductive plate are respectively electrically connected with the charging control unit through the high-voltage wire harness, and the electromagnet and the pressure sensor are respectively electrically connected with the charging control unit through the low-voltage wire harness;
the charging seat comprises a base and a charging plate, wherein the base is used for being installed on an electric automobile, a through hole is formed in the base, the charging plate is arranged in the through hole, the charging plate comprises a plurality of electrode plates, and the electrode plates are used for being correspondingly and electrically connected with a plurality of charging wires on the electric automobile;
in the process that the charging gun is inserted into the charging seat, the charging control unit controls the electromagnet to work with a first current to generate a magnetic field, so that the electromagnet and the charging plate are in magnetic attraction, and real-time pressure acquired by the pressure sensor is acquired;
When the charging gun is inserted into the charging seat, the charging control unit determines charging parameters of the electric automobile according to the real-time pressure and controls the electromagnet to work with a second current to generate a magnetic field so that the charging gun is kept inserted into the charging seat, wherein the second current is larger than the first current;
and the charging control unit charges the electric automobile according to the charging parameters.
In a possible implementation manner of the second aspect, the insulating plate, the pressure sensor and the electromagnet are all provided with through holes, and the high-voltage wire harness is arranged through the through holes of the insulating plate, the through holes of the pressure sensor and the through holes of the electromagnet in a penetrating manner and is electrically connected with the magnetic conductive plate.
In one possible implementation manner of the second aspect, the charging gun further includes an insulating sleeve, the insulating sleeve is arranged through the through hole of the insulating plate, the through hole of the pressure sensor and the through hole of the electromagnet, and the high-voltage wire harness is arranged through the insulating sleeve and is electrically connected with the magnetic conductive plate.
In a possible implementation manner of the second aspect, the charging gun further includes a first insulating partition board, and a plurality of isolation boards are disposed on the first insulating partition board, and each isolation board is located between two corresponding adjacent magnetic conductive sheets on the magnetic conductive board, so that all magnetic conductive sheets on the magnetic conductive board are isolated from each other.
In a possible implementation manner of the second aspect, the charging gun further includes an insulating housing, the insulating housing is provided with an inner cavity, and the magnetic conductive plate, the insulating plate and the electromagnet are all disposed in the inner cavity of the insulating housing.
In a possible implementation manner of the second aspect, the charging gun further includes a switch unit, which is disposed on the housing of the insulating housing, and is electrically connected to a corresponding low voltage line in the low voltage harness.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
After the start signal is obtained, the charging control unit on the charging pile controls the electromagnet on the charging gun to work with a first current to generate a magnetic field, so that magnetic attraction is generated between the electromagnet and the charging seat on the electric automobile, friction force between the charging gun and the charging seat is counteracted, a user can insert the charging seat on the charging seat with smaller force, and experience of the user is improved. Meanwhile, the electromagnet on the charging gun can also generate magnetic attraction with the magnetic conduction plate, and the pressure sensor between the magnetic conduction plate and the electromagnet can detect the real-time pressure of the electromagnet to the pressure sensor.
When the real-time pressure is larger than the preset pressure, the charging gun is inserted on the charging seat, and the area of the charging plate on the charging seat is different due to different charging parameters of different types of electric vehicles, the magnetic attraction between the electromagnet and the charging plate is also different, so that the pressure of the electromagnet to the pressure sensor is also different, and therefore, the charging control unit can determine the type of the electric automobile according to the real-time pressure output by the pressure sensor, and further determine the charging parameters of the electric automobile. Meanwhile, the charging control unit also controls the electromagnet to work with a second current to generate a magnetic field, so that the charging gun is kept inserted on the charging seat, the charging gun is prevented from being separated from the charging seat, and the normal charging of the electric automobile is ensured.
And finally, the charging control unit charges the electric automobile according to the determined charging parameters.
Therefore, the charging control method provided by the embodiment of the application can reduce the inserting difficulty of the charging gun and improve the experience of a user during charging.
It will be appreciated that the advantages of the second aspect may be found in the relevant description of the first aspect, and will not be described in detail herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a charging stake according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a charging gun according to an embodiment of the present application;
FIG. 3 is an exploded view of a charging gun according to an embodiment of the present application;
Fig. 4 is a schematic structural diagram of a charging stand according to an embodiment of the present application;
FIG. 5 is an exploded view of a charging stand according to an embodiment of the present application;
fig. 6 is a flowchart of a charging control method according to an embodiment of the application.
In the figure, 100 parts of a charging control unit, 101 parts of an electromagnet, 102 parts of a pressure sensor, 103 parts of a magnetic conduction plate, 104 parts of an insulating plate, 105 parts of a high-voltage wiring harness, 106 parts of a low-voltage wiring harness, 107 parts of an insulating sleeve, 108 parts of a first insulating partition board, 109 parts of an insulating housing, 110 parts of a switch unit, 111 parts of a first sealing sleeve, 200 parts of a base, 201 parts of a base body, 202 parts of a first protruding part, 203 parts of a second protruding part, 204 parts of a containing groove, 205 parts of a charging plate, 206 parts of an electrode plate, 207 parts of a through hole, 208 parts of a second insulating partition board, 209 parts of a second sealing sleeve.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
The embodiment of the application provides a charging system which comprises a charging pile and a charging seat on an electric automobile.
As shown in fig. 1 to 3, the charging pile comprises a charging control unit 100 and a charging gun, the charging gun comprises a magnetic conduction plate 103, an insulating plate 104, a pressure sensor 102, an electromagnet 101, a high-voltage wire harness 105 and a low-voltage wire harness 106, the magnetic conduction plate 103, the insulating plate 104, the pressure sensor 102 and the electromagnet 101 are sequentially attached, a plurality of magnetic conduction sheets on the magnetic conduction plate 103 are respectively electrically connected with the charging control unit 100 through the high-voltage wire harness 105, and the electromagnet 101 and the pressure sensor 102 are respectively electrically connected with the charging control unit 100 through the low-voltage wire harness 106.
Specifically, in the process that the user inserts the charging gun into the charging seat, the charging control unit 100 controls the low-voltage wire harness 106 to be electrified so that the electromagnet 101 and the pressure sensor 102 are electrified, the electromagnet 101 works with a first current to generate a magnetic field, magnetic attraction is generated between the electromagnet 101 and the charging plate 205 in the charging seat, the user can realize the connection of the charging gun and the charging seat by using smaller force under the action of the magnetic attraction, and the experience of the user in charging the electric automobile is improved.
The pressure sensor 102 may collect the real-time pressure of the electromagnet 101 to the pressure sensor 102 and transmit the real-time pressure to the charge control unit 100. Before the charging gun is inserted into the charging stand, the electromagnet 101 attracts only the magnetically conductive plate 103, and at this time, the pressure generated by the magnetically conductive plate 103 on the insulating plate 104 by the attraction of the electromagnet 101 is the first pressure, and the pressure of the insulating plate 104 on the pressure sensor 102 is the same as the first pressure, and at this time, the real-time pressure output from the pressure sensor 102 to the charging control unit 100 is the first pressure.
When the charging gun is inserted into the charging seat, the electromagnet 101 simultaneously attracts the magnetic guiding plate 103 and the charging plate 205 on the charging seat, at this time, the pressure of the magnetic guiding plate 103 generated by the attraction force of the electromagnet 101 on the insulating plate 104 is increased from the first pressure to the second pressure, the pressure of the insulating plate 104 on the pressure sensor 102 is changed to the second pressure, at this time, the real-time pressure output by the pressure sensor 102 to the charging control unit 100 is the second pressure, and the second pressure is greater than the preset pressure. Therefore, when the real-time pressure received by the charging control unit 100 is greater than the preset pressure, the charging control unit 100 may determine that the charging gun at this time has been inserted into the charging stand.
The area of the charging plate 205 on the charging stand is also different due to different charging parameters of different types of electric vehicles. The charging parameters of the automobile are charging voltages, the larger the charging voltage of the electric automobile is, the larger the area of the electrode plate 206 on the charging plate 205 is, the larger the area of the charging plate 205 is, and the smaller the charging voltage of the electric automobile is, the smaller the area of the electrode plate 206 on the charging plate 205 is, and the smaller the area of the charging plate 205 is. When the charging gun is inserted into the charging stand, the magnetic attraction between the electromagnet 101 and the charging plate 205 is also different, so that the pressure of the electromagnet 101 to the pressure sensor 102 is also different, and therefore, the charging control unit 100 can determine the type of the electric automobile according to the real-time pressure output by the pressure sensor 102, and further determine the charging parameters of the electric automobile. Meanwhile, the charging control unit 100 also controls the electromagnet 101 to work with a second current to generate a magnetic field, the second current is larger than the first current, the magnetic field of the electromagnet 101 is enhanced, the charging gun is kept to be inserted on the charging seat, the charging gun is prevented from being separated from the charging seat, and normal charging of the electric automobile is ensured.
When the charging parameters are determined, the charging control unit 100 charges the electric vehicle according to the charging parameters. According to the charging system provided by the embodiment of the application, one charging pile can simultaneously meet the charging requirements of various types of electric automobiles, the universality of the charging pile is improved, and the charging convenience of the electric automobiles is met.
As shown in fig. 2 and 3, the insulating plate 104, the pressure sensor 102 and the electromagnet 101 are provided with through holes, and the high-voltage wire harness 105 is inserted through the through holes of the insulating plate 104, the pressure sensor 102 and the electromagnet 101 and electrically connected to the magnetic conductive plate 103.
Specifically, when the charging gun is inserted into the charging seat, the magnetic conductive plate 103 is connected with the charging plate 205 in the charging seat, and the charging control unit 100 outputs a current with a corresponding voltage, and charges the electric vehicle through the magnetic conductive plate 103.
Illustratively, the high voltage harness 105 includes a first insulating layer and a plurality of high voltage wires, the first insulating layer encasing all of the high voltage wires. The low voltage harness 106 includes a second insulating layer and a plurality of low voltage lines, the second insulating layer encasing the high voltage harness 105 and all of the low voltage lines. The end of the high-voltage wire harness 105 is not wrapped by the second insulating layer, and the end of the high-voltage wire harness 105 is inserted through the through hole of the insulating plate 104, the through hole of the pressure sensor 102 and the through hole of the electromagnet 101, and is electrically connected with the magnetic conductive plate 103. Since the first insulating layer is wrapped on the outer side of the high-voltage wire, normal operation of the pressure sensor 102 and the electromagnet 101 is not affected when the high-voltage current flows through the high-voltage wire harness 105.
Illustratively, the shape of the pressure sensor 102 may be a sheet or a net, which ensures that the pressure sensor 102 has enough area to contact the insulating plate 104 and the electromagnet 101, and the pressure sensor 102 can accurately collect the real-time pressure of the insulating plate 104 to the pressure sensor 102 after the electromagnet 101 is powered on.
In order to further improve the isolation performance between the high-voltage wire harness 105 and the low-voltage device (the pressure sensor 102 and the electromagnet 101), an insulating sleeve 107 may be added, and the insulating sleeve 107 is first inserted into the through hole of the insulating plate 104, the through hole of the pressure sensor 102 and the through hole of the electromagnet 101, and then the high-voltage wire harness 105 is inserted into the insulating sleeve 107 and electrically connected with the magnetic conductive plate 103. The insulating sleeve 107 further plays an isolating role, so that the pressure sensor 102 and the electromagnet 101 cannot be affected by the high-voltage wire harness 105, and the working stability of the charging gun is improved.
As shown in fig. 3, the charging gun further includes a first insulating partition plate 108, and a plurality of isolation plates are disposed on the first insulating partition plate 108, and each isolation plate is located between two adjacent corresponding magnetic conductive sheets on the magnetic conductive plate 103, so that all the magnetic conductive sheets on the magnetic conductive plate 103 are isolated from each other.
Specifically, when the high-voltage current output by the charging control unit 100 reaches the magnetic conductive plate 103 through the high-voltage wire harness 105, the electrodes of each magnetic conductive sheet on the magnetic conductive plate 103 are different, and if no isolation exists between the magnetic conductive sheets, discharge or even short circuit occurs between the magnetic conductive sheets, which causes damage to the electric automobile or the charging pile. The isolation plate on the first insulating partition plate 108 can isolate all the magnetic conductive sheets on the magnetic conductive plate 103 from each other, so that discharge or short circuit between the magnetic conductive sheets is avoided, the charging gun is ensured to be capable of charging the electric automobile normally, and the safety and stability of the charging gun are improved.
As shown in fig. 2 and 3, the charging gun further includes an insulating housing 109, the insulating housing 109 is provided with an inner cavity, and the magnetic conductive plate 103, the insulating plate 104 and the electromagnet 101 are all disposed in the inner cavity of the insulating housing 109.
Specifically, when the electric vehicle needs to be charged using the charging gun, the user can hold the insulating housing 109 to insert the charging gun into the charging stand. Insulating housing 109 can play the effect of isolated internal circuit, prevents that the rifle that charges from taking place the electric leakage and causing the injury to the user, and insulating housing 109 can play the effect of protection internal device simultaneously.
In one embodiment of the present application, the charging port of the insulating housing 109 is provided with a limit structure.
Specifically, when the user inserts the rifle that charges into the charging seat, limit structure can restrict the displacement route of rifle that charges, ensures that the rifle that charges can correctly peg graft on the charging seat.
The limiting structure is a limiting protrusion, that is, a limiting protrusion is disposed at the charging port of the insulating housing 109, and a groove adapted to the limiting protrusion is disposed on the charging seat. When being used for inserting the in-process that charges the rifle and charge the seat, spacing arch slides in the slot, prevents that the rifle from taking place to rotate, ensures that the rifle that charges can be accurate insert in the charging seat.
As shown in fig. 2 and 3, the charging gun further includes a switching unit 110, the switching unit 110 being provided on the housing of the insulating housing 109, the switching unit 110 being electrically connected to a corresponding low voltage line of the low voltage line 106.
Specifically, when the user lifts the charging gun, the switch unit 110 is triggered, the switch unit 110 sends an opening signal to the charging control unit 100 through the low-voltage wire harness 106, the charging control unit 100 outputs a low-voltage current after receiving the opening signal, the low-voltage current reaches the electromagnet 101 through the low-voltage wire harness 106, a magnetic attraction force is generated between the magnetic field generated by the electromagnet 101 and the charging plate 205 in the charging seat, and the user can insert the charging gun onto the charging seat with a small force.
When the electric automobile is charged, the user wants to pull out the charging gun, the user triggers the switch unit 110, the switch unit 110 sends a shutdown signal to the charging control unit 100 through the low-voltage wire harness 106, the charging control unit 100 stops outputting low-voltage current to the electromagnet 101 after receiving the shutdown signal, the electromagnet 101 does not generate a magnetic field any more, and the user can pull out the charging gun on the charging seat smoothly.
For example, the switching unit 110 may be a push button switch, a touch switch, a wave switch, or the like. The user may send an on signal or an off signal to the charge control unit 100 by triggering a push button switch, a touch switch, or a wave switch.
As shown in fig. 2 and 3, the charging gun further includes a first sealing sleeve 111, the first sealing sleeve 111 being disposed in the interior cavity of the insulating housing 109 and proximate the charging port of the insulating housing 109.
Specifically, after the charging gun is inserted into the charging seat, the first sealing sleeve 111 can assist in forming a seal between the charging gun and the charging seat, so as to prevent water or other foreign matters from entering between the charging gun and the charging seat, thereby causing abnormal charging and improving the safety and stability of the charging gun.
As shown in fig. 4 and 5, the charging stand includes a base 200 and a charging plate 205, the base 200 is used for being mounted on an electric vehicle, a through hole 207 is formed in the base 200, the charging plate 205 is disposed in the through hole 207, the charging plate 205 includes a plurality of electrode plates 206, and the plurality of electrode plates 206 are used for being correspondingly and electrically connected with a plurality of charging wires on the electric vehicle.
Specifically, in the process that the charging gun inserts the charging seat, the electromagnet 101 on the charging gun generates a magnetic field, the electromagnet 101 and the electrode plate 206 on the charging seat generate magnetic attraction, the magnetic attraction can offset the friction force between the charging gun and the charging seat, and under the action of the magnetic attraction, a user can insert the charging gun on the charging seat by using smaller force, so that the experience of the user is improved.
After the charging gun is inserted into the charging seat, a plurality of electrode plates 206 on the charging seat are correspondingly contacted with a plurality of magnetic conductive plates on the magnetic conductive plate 103 in the charging gun, and when the charging control unit 100 outputs high-voltage current, the high-voltage current passes through the electrode plates 206 in the charging seat to charge the electric automobile. In the charging process, the electromagnet 101 in the charging gun keeps generating a magnetic field large enough, and a magnetic attraction force is enough between the electromagnet 101 in the charging gun and the electrode plate 206 in the charging seat, so that the charging gun keeps being inserted on the charging seat, and stable charging of the electric automobile is ensured. Because the magnetic attraction can enable the charging gun to be stably inserted on the charging seat, an additional clamping structure is not required to be arranged on the charging seat and the charging gun, and the cost of the charging seat and the charging gun is reduced.
In one embodiment of the present application, the area of the electrode pad 206 in the charging pad 205 is determined according to the charging voltage of the electric vehicle, and if the charging voltage of the electric vehicle is the third voltage, the area of the electrode pad 206 is the first area, and if the charging voltage of the electric vehicle is the fourth voltage, the area of the electrode pad 206 in the charging pad 205 is the second area, and if the third voltage is greater than the fourth voltage, the first area is greater than the second area.
Specifically, a designer may select the electrode pad 206 of a corresponding size according to the charging voltage of the electric vehicle. The larger the charging voltage of the electric vehicle, the larger the area of the electrode pad 206 used, and the smaller the charging voltage of the electric vehicle, the smaller the area of the electrode pad 206 used.
As shown in fig. 4 and 5, the base 200 includes a base body 201, a first protruding portion 202 and a second protruding portion 203, the first protruding portion 202 and the second protruding portion 203 are all disposed on the same side surface of the base body 201, a through hole 207 penetrates through the base body 201 and the first protruding portion 202, and the second protruding portion 203 is spaced and sleeved on the periphery of the first protruding portion 202, so that a circular accommodating groove 204 is formed between the first protruding portion 202 and the second protruding portion 203.
Specifically, the seat body 201 is fixed on the body of the electric vehicle, and a plurality of charging wires on the electric vehicle are inserted into the through holes 207 and are correspondingly and electrically connected with the plurality of electrode pads 206. When inserting the rifle that charges on the charging seat, a plurality of magnetic conductive sheets in the rifle that charges correspond the contact with a plurality of electrode slices 206 in the charging seat and realize the electricity and be connected, the shell of rifle tip that charges is located the storage tank 204, realizes the sealing of rifle and charging seat junction that charges, prevents that water or other foreign matter from getting into and influencing electric automobile's normal charge, has improved electric automobile's stability of charging.
Illustratively, the charging plate 205 is disposed near the opening of the first protruding portion 202, so that after the charging gun is inserted into the charging stand, the plurality of magnetic conductive sheets on the charging gun are correspondingly contacted with the plurality of electrode sheets 206 on the charging stand to realize electrical connection.
In one embodiment of the present application, the charging stand further includes a second sealing sleeve 209, where the second sealing sleeve 209 is sleeved on the first protrusion 202 and is disposed in the accommodating groove 204, or the second sealing sleeve 209 is sleeved on the second protrusion 203.
Specifically, when the charging gun inserts on the charging seat, the casing of charging gun tip can extrude second seal cover 209, makes charging gun and charging seat junction form sealedly, prevents that water or other foreign matter from getting into and influencing electric automobile's normal charge, has improved electric automobile's stability of charging.
In one embodiment of the present application, a limiting structure is disposed in the accommodating groove 204, and the limiting structure is used for limiting the moving direction of the charging gun.
Specifically, be provided with the spacing portion with limit structure adaptation on the rifle that charges, at the in-process that the rifle that charges inserted the charging seat, the spacing portion on the rifle that charges removes in limit structure, when making the rifle that charges insert on the charging seat, a plurality of magnetic conductive sheets in the rifle that charges and a plurality of electrode slices 206 in the charging seat can the exact contact realize the electricity and be connected.
Illustratively, the limiting structure is a groove, which is disposed in the accommodating groove 204 and may be disposed on the first protruding portion 202 or the second protruding portion 203, and a protruding portion is disposed on the housing of the charging gun end. When inserting the rifle that charges on the charging seat, the protruding part on the rifle that charges slides in the recess all the time, prevents to appear charging the rifle and rotate and cause a plurality of magnetic conductive sheets on the rifle and a plurality of electrode slices 206 on the charging seat to correspond the contact, ensures that a plurality of magnetic conductive sheets in the rifle that charges and a plurality of electrode slices 206 in the charging seat can be exact the contact and realize the electricity and be connected.
As shown in fig. 4 and 5, the charging stand further includes a second insulating separator 208, and a plurality of isolation plates are disposed on the second insulating separator 208, and each isolation plate is disposed between two adjacent electrode plates 206 on the charging plate 205, so that all the electrode plates 206 on the charging plate 205 are isolated from each other.
Specifically, after the charging gun is plugged into the charging seat, if the charging control unit 100 outputs high-voltage current to reach the plurality of electrode plates 206 on the charging seat, if no isolation exists between the electrode plates 206, discharge or even short circuit occurs between the electrode plates 206, which may damage the charging gun, the charging pile or the electric automobile, and even threaten the personal safety of the user. The isolation plates on the second insulating partition plate 208 are respectively arranged between two adjacent electrode plates 206, so that all the electrode plates 206 on the charging plate 205 are isolated from each other, the phenomenon of discharging or short circuit between the electrode plates 206 is prevented, the electric automobile can be ensured to be charged normally, and the safety in the charging process is improved.
In one embodiment of the present application, the charging pad 205 includes a first electrode pad for electrically connecting with a positive charging wire on the electric vehicle, a second electrode pad for electrically connecting with a negative charging wire on the electric vehicle, and a third electrode pad for electrically connecting with a ground charging wire on the electric vehicle.
Specifically, the charging gun comprises three magnetic conduction sheets, and the three magnetic conduction sheets are respectively electrically connected with the positive electrode charging wire, the negative electrode charging wire and the grounding charging wire of the charging pile. When the charging gun is inserted into the charging seat, the three magnetic conductive sheets of the charging gun are respectively in corresponding contact with the first electrode sheet, the second electrode sheet and the third electrode sheet on the charging seat, so that the charging gun is electrically connected with the electric automobile. When the charge control unit 100 outputs a high-voltage current, the high-voltage current charges the electric vehicle through the first electrode tab, the second electrode tab, and the third electrode tab.
The positive electrode and the negative electrode described in the present application are not only representative of a direct current positive electrode, but also may be a live wire and a neutral wire of an alternating current. If when carrying out alternating current charging to electric automobile, the magnetic conduction piece that is connected with the live wire in the rifle that charges is connected with first electrode slice contact electricity, the magnetic conduction piece that is connected with the zero line in the rifle that charges is connected with second electrode slice contact electricity, the magnetic conduction piece that is connected with the ground wire in the rifle that charges is connected with third electrode slice contact electricity, fills electric pile and can carry out alternating current charging to electric automobile this moment.
In one embodiment of the application, the base 200 is made of an insulating material, so that electric leakage can be prevented when the electric automobile is charged, potential safety hazards to personal safety of a user can be prevented, and safety of the electric automobile when the electric automobile is charged can be improved.
As shown in fig. 6, the charge control method includes steps S601 to S603.
In step S601, after the start signal is obtained, the electromagnet 101 on the charging gun is controlled to work with a first current to generate a magnetic field, so that a magnetic attraction force is generated between the electromagnet 101 and the charging seat on the electric automobile, and a real-time pressure collected by the pressure sensor 102 on the charging gun is obtained.
Specifically, in the process that the user inserts the charging gun into the charging seat, the charging control unit 100 controls the low-voltage wire harness 106 to be electrified so that the electromagnet 101 and the pressure sensor 102 are electrified, the electromagnet 101 works with a first current to generate a magnetic field, magnetic attraction is generated between the electromagnet 101 and the charging plate 205 in the charging seat, the user can realize the connection of the charging gun and the charging seat by using smaller force under the action of the magnetic attraction, and the experience of the user in charging the electric automobile is improved.
The pressure sensor 102 may collect the real-time pressure of the electromagnet 101 to the pressure sensor 102 and transmit the real-time pressure to the charge control unit 100. Before the charging gun is inserted into the charging stand, the electromagnet 101 attracts only the magnetically conductive plate 103, and at this time, the pressure generated by the magnetically conductive plate 103 on the insulating plate 104 by the attraction of the electromagnet 101 is the first pressure, and the pressure of the insulating plate 104 on the pressure sensor 102 is the same as the first pressure, and at this time, the real-time pressure output from the pressure sensor 102 to the charging control unit 100 is the first pressure.
In step S602, when the real-time pressure is greater than the preset pressure, the charging parameters of the electric vehicle are determined according to the real-time pressure, and the electromagnet 101 is controlled to operate with a second current to generate a magnetic field, so that the charging gun is kept plugged on the charging stand, wherein the second current is greater than the first current.
Specifically, when the real-time pressure is greater than the preset pressure, it indicates that the charging gun is inserted into the charging seat, the electromagnet 101 simultaneously attracts the magnetic guiding plate 103 and the charging plate 205 on the charging seat, at this time, the pressure generated by the magnetic guiding plate 103 on the insulating plate 104 by the attraction force of the electromagnet 101 is increased from the first pressure to the second pressure, the pressure of the insulating plate 104 on the pressure sensor 102 is changed to the second pressure at the same time, at this time, the real-time pressure output by the pressure sensor 102 to the charging control unit 100 is the second pressure, and the second pressure is greater than the preset pressure. Therefore, when the real-time pressure received by the charging control unit 100 is greater than the preset pressure, the charging control unit 100 may determine that the charging gun at this time has been inserted into the charging stand.
The area of the charging plate 205 on the charging stand is also different due to different charging parameters of different types of electric vehicles. The charging parameters of the automobile are charging voltages, the larger the charging voltage of the electric automobile is, the larger the area of the electrode plate 206 on the charging plate 205 is, the larger the area of the charging plate 205 is, and the smaller the charging voltage of the electric automobile is, the smaller the area of the electrode plate 206 on the charging plate 205 is, and the smaller the area of the charging plate 205 is. When the charging gun is inserted into the charging stand, the magnetic attraction between the electromagnet 101 and the charging plate 205 is also different, so that the pressure of the electromagnet 101 to the pressure sensor 102 is also different, and therefore, the charging control unit 100 can determine the type of the electric automobile according to the real-time pressure output by the pressure sensor 102, and further determine the charging parameters of the electric automobile. Meanwhile, the charging control unit 100 also controls the electromagnet 101 to work with a second current to generate a magnetic field, the second current is larger than the first current, the magnetic field of the electromagnet 101 is enhanced, the charging gun is kept to be inserted on the charging seat, the charging gun is prevented from being separated from the charging seat, and normal charging of the electric automobile is ensured.
For example, a designer may obtain, through an experimental method, a correspondence between the pressure range detected by the pressure sensor 102 and the electric vehicle charging parameter when the charging gun is inserted into the charging stand, and store the correspondence between the pressure range and the electric vehicle charging parameter into the memory in the charging control unit 100. In the process of charging the electric vehicle by using the charging pile, when the charging gun is inserted into the charging seat, the charging control unit 100 acquires the real-time pressure acquired by the pressure sensor 102, determines the pressure range in which the real-time pressure is located, and determines the charging parameters of the electric vehicle according to the determined pressure range.
Step S603, charging the electric vehicle according to the charging parameters.
Specifically, after determining the charging parameters, the charging control unit 100 charges the electric vehicle according to the charging parameters. According to the charging system provided by the embodiment of the application, one charging pile can simultaneously meet the charging requirements of various types of electric automobiles, the universality of the charging pile is improved, and the charging convenience of the electric automobiles is met.
In one embodiment of the present application, step S604 is further included after step S603.
In step S604, when the electric vehicle is charged, the electric vehicle is stopped, and the electromagnet 101 is controlled to operate with the first current to generate the magnetic field.
Specifically, the sign of the completion of charging the electric vehicle may be that the electric quantity of the battery on the electric vehicle is greater than a preset electric quantity value, for example, when the electric quantity of the battery of the electric vehicle is greater than 90%, the completion of charging the electric vehicle may be determined. The charging control unit 100 may communicate with an electric vehicle, and the electric vehicle may transmit power information of the battery to the charging control unit 100, and the charging control unit 100 determines whether the electric vehicle is charged by recognizing a power value of the battery. The electric quantity of the battery on the electric automobile is different, the charging voltage and the charging current are also different, when the battery is about to be fully charged, the charging voltage and the charging current of the battery are reduced, and when the charging control unit 100 detects that the charging voltage and the charging current of the electric automobile are smaller than the preset voltage and the preset current, the electric automobile is determined to be charged.
When the electric vehicle is charged, the charging control unit 100 controls to stop charging the electric vehicle, and simultaneously controls the electromagnet 101 to work with the first current to generate a magnetic field, so that the magnetic attraction between the charging gun and the charging seat is reduced, and the charging gun can be pulled out from the charging seat by a subsequent user.
In one embodiment of the present application, step S605 is further included after step S604.
In step S605, when the stop signal is acquired, the power supply to the electromagnet 101 is stopped.
Specifically, when the electric vehicle completes charging and the user needs to pull out the charging gun, the user may send a stop signal to the charging control unit 100 by triggering the switch unit 110 on the charging gun. After receiving the stop signal, the charging control unit 100 stops supplying power to the electromagnet 101, the electromagnet 101 does not generate a magnetic field any more, at this time, no magnetic attraction exists between the charging gun and the charging seat, and a user can smoothly pull out the charging gun from the charging seat.
According to the charging control method provided by the embodiment of the application, in the process of inserting the charging gun into the charging seat, the electromagnet 101 on the charging gun is controlled to generate a magnetic field to generate a magnetic attraction with the charging plate 205 on the charging seat, so that a user can insert the charging gun into the charging seat with a small force, and the experience of the user when the user charges the electric automobile by using the charging pile is improved. When the charging gun is inserted into the charging seat, the charging parameters of the electric automobile can be determined according to the real-time pressure acquired by the pressure sensor 102 in the charging gun, and then the electric automobile is charged according to the charging parameters. The charging pile can charge electric vehicles of different types, and the universality of the charging pile is improved. When the charging pile starts to charge the electric automobile, the electromagnet 101 on the charging gun is controlled to generate a magnetic field large enough, so that the charging gun is stably inserted on the charging seat, an additional clamping structure is not required to be arranged on the charging gun and the charging seat, and the production cost of the charging gun and the charging seat is reduced.
The foregoing embodiments are merely illustrative of the technical solutions of the present application, and not restrictive, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A charging control method, characterized by comprising:
When an opening signal is obtained, controlling an electromagnet on a charging gun to work with a first current to generate a magnetic field, so that magnetic attraction is generated between the electromagnet and a charging seat on an electric automobile, and obtaining real-time pressure collected by a pressure sensor on the charging gun;
when the real-time pressure is higher than the preset pressure, determining charging parameters of the electric automobile according to the real-time pressure, and controlling the electromagnet to work with a second current to generate a magnetic field so as to enable the charging gun to be inserted into the charging seat, wherein the second current is higher than the first current;
And charging the electric automobile according to the charging parameters.
2. The charge control method according to claim 1, characterized by further comprising, after the electric vehicle is charged according to the charging parameter:
and stopping charging the electric automobile after the electric automobile is charged, and controlling the electromagnet to work with the first current to generate a magnetic field.
3. The charge control method according to claim 2, characterized by further comprising, after stopping charging the electric vehicle and controlling the electromagnet to operate with the first current to generate a magnetic field when the electric vehicle is charged, the step of:
And stopping supplying power to the electromagnet after the stop signal is acquired.
4. The charge control method according to claim 1, wherein the determining the charge parameter of the electric vehicle according to the real-time pressure includes:
determining the pressure range of the real-time pressure;
And determining a charging parameter corresponding to the pressure range, wherein the charging parameter comprises a charging voltage.
5. The charging system is characterized by comprising a charging pile and a charging seat on an electric automobile, wherein the charging pile comprises a charging control unit and a charging gun, the charging gun comprises a magnetic conduction plate, an insulating plate, a pressure sensor, an electromagnet, a high-voltage wire harness and a low-voltage wire harness, the magnetic conduction plate, the insulating plate, the pressure sensor and the electromagnet are sequentially attached, a plurality of magnetic conduction sheets on the magnetic conduction plate are respectively and electrically connected with the charging control unit through the high-voltage wire harness, and the electromagnet and the pressure sensor are respectively and electrically connected with the charging control unit through the low-voltage wire harness;
the charging seat comprises a base and a charging plate, wherein the base is used for being installed on an electric automobile, a through hole is formed in the base, the charging plate is arranged in the through hole, the charging plate comprises a plurality of electrode plates, and the electrode plates are used for being correspondingly and electrically connected with a plurality of charging wires on the electric automobile;
In the process that the charging gun is inserted into the charging seat, the charging control unit controls the electromagnet to work with a first current to generate a magnetic field, so that magnetic attraction is generated between the electromagnet and the charging plate, and real-time pressure acquired by the pressure sensor is acquired;
When the charging gun is inserted into the charging seat, the charging control unit determines charging parameters of the electric automobile according to the real-time pressure and controls the electromagnet to work with a second current to generate a magnetic field so that the charging gun is kept inserted into the charging seat, wherein the second current is larger than the first current;
and the charging control unit charges the electric automobile according to the charging parameters.
6. The charging system of claim 5, wherein the insulating plate, the pressure sensor, and the electromagnet are each provided with a through hole, and the high-voltage wire harness is inserted through the through holes of the insulating plate, the pressure sensor, and the electromagnet, and is electrically connected to the magnetic conductive plate.
7. The charging system of claim 6, wherein the charging gun further comprises an insulating sleeve, the insulating sleeve is arranged through the through hole of the insulating plate, the through hole of the pressure sensor and the through hole of the electromagnet, and the high-voltage wire harness is arranged through the insulating sleeve and is electrically connected with the magnetic conductive plate.
8. The charging system of claim 5, wherein the charging gun further comprises a first insulating spacer, wherein a plurality of isolation plates are provided on the first insulating spacer, each isolation plate is located between two adjacent corresponding magnetic conductive sheets on the magnetic conductive plate, so that all magnetic conductive sheets on the magnetic conductive plate are isolated from each other.
9. The charging system of any one of claims 5-8, wherein the charging gun further comprises an insulating housing, the insulating housing having an interior cavity, the magnetically permeable plate, the insulating plate, and the electromagnet being disposed within the interior cavity of the insulating housing.
10. The charging system of claim 9, wherein the charging gun further comprises a switch unit disposed on the housing of the insulating housing, the switch unit being electrically connected to a corresponding low voltage line in the low voltage harness.
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| CN108621856A (en) * | 2018-07-20 | 2018-10-09 | 成都肯保捷旭阳新能源电器有限公司 | A kind of control circuit and its charging gun for charging gun locking |
| CN114583709A (en) * | 2022-05-05 | 2022-06-03 | 江苏腾源智能科技有限公司 | Electric power safety monitoring system of parking lot charging circuit |
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| US9758046B2 (en) * | 2014-11-21 | 2017-09-12 | Uchicago Argonne, Llc | Plug-in electric vehicle (PEV) smart charging module |
| CN107732503A (en) * | 2017-11-09 | 2018-02-23 | 郑州栾信科技有限公司 | A kind of new-energy automobile charging gun |
| JP2020089030A (en) * | 2018-11-22 | 2020-06-04 | トヨタ自動車株式会社 | Electric vehicle |
| KR102284859B1 (en) * | 2019-11-08 | 2021-08-04 | 주식회사 한성시스코 | Grid participant charging system for easy management of multiple chargers |
| CN111180960B (en) * | 2020-02-18 | 2022-03-11 | 远景能源有限公司 | Charging adaptor for electric vehicle and charging protection method |
| CN213345646U (en) * | 2020-05-27 | 2021-06-04 | 佛山以太物联科技有限公司 | Pressure measuring device, intelligent nursing clothes and intelligent nursing system |
| CN215552639U (en) * | 2021-08-24 | 2022-01-18 | 江门电桩哥网络科技有限公司 | High-power energy-saving intelligent charging stake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108621856A (en) * | 2018-07-20 | 2018-10-09 | 成都肯保捷旭阳新能源电器有限公司 | A kind of control circuit and its charging gun for charging gun locking |
| CN114583709A (en) * | 2022-05-05 | 2022-06-03 | 江苏腾源智能科技有限公司 | Electric power safety monitoring system of parking lot charging circuit |
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