Charging system

Abstract

The utility model discloses a charging system, and the system is used for providing charging services for a plurality of fixed parking spaces, and comprises a charging pile which is provided with a power supply input interface; the plurality of power supply interfaces and the plurality of fixed parking spaces are arranged in a one-to-one correspondence manner; the power supply device is configured to output charging electric energy to the plurality of power supply interfaces based on the electric energy of the plurality of power supplies; when the charging pile moves to the target power supply interface, and the power supply input interface of the charging pile is connected with the target power supply interface, or the power supply input interface of the charging pile stretches out and draws back to the target power supply interface and is connected with the target power supply interface. And the charging pile charges a vehicle in a target parking space corresponding to the target power supply interface based on the charging electric energy. According to the charging system, the vehicle charging requirements of different parking spaces can be met through the charging piles, the installation number of the charging piles is reduced, the cost is reduced, and meanwhile the charging effect of the vehicle is guaranteed based on multiple power supplies.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging system. Background Art

[0002] At present, the installation scheme of one charging pile for each parking space is adopted in electric vehicle charging stations. This installation scheme leads to high initial investment costs of charging stations. At the same time, in actual applications, the utilization rate of charging piles is low and the actual idle rate is high, resulting in a long investment recovery period and failure to make quick profits. Utility Model Content

[0003] In view of the above problems, the present application provides a charging system, which can meet the charging needs of vehicles in different parking spaces based on charging piles, reduce the number of charging piles installed, and reduce costs. At the same time, based on multiple power supplies, it can meet the charging power requirements in different scenarios and ensure the vehicle charging effect.

[0004] The present application provides a charging system for providing charging services for multiple fixed parking spaces, the system comprising: a charging pile, on which a power supply input interface is provided; multiple power supply interfaces, the multiple power supply interfaces are arranged in a one-to-one correspondence with the multiple fixed parking spaces; a power supply device, the power supply device is connected to the multiple power supply interfaces and multiple power supplies, and is configured to output charging power to the multiple power supply interfaces based on the power energy of the multiple power supplies; wherein, when the charging pile moves to a target power supply interface and the power supply input interface of the charging pile is connected to the target power supply interface, or when the power supply input interface of the charging pile is retracted to the target power supply interface and connected to the target power supply interface, the charging pile charges the vehicle in the target parking space corresponding to the target power supply interface based on the charging power.

[0005] In the technical solution of the embodiment of the present application, multiple power supply interfaces are arranged in one-to-one correspondence with multiple fixed parking spaces, and multiple power supply interfaces are connected to multiple power sources through power supply devices. When a vehicle in a target fixed parking space has a charging demand, the charging pile is moved to the target power supply interface corresponding to the target fixed parking space, or the power supply input interface of the charging pile is extended to the target power supply interface. At this time, the owner connects the power supply input interface of the charging pile with the target power supply interface, and connects the power supply output interface of the charging pile, i.e., the charging gun, with the charging port of the vehicle to charge the vehicle. In the process of charging the vehicle, multiple power sources establish a charging circuit with the vehicle through the power supply device, the target power supply interface and the charging pile, thereby charging the vehicle. In this way, the charging pile can meet the charging needs of vehicles in different parking spaces, reduce the number of charging piles installed, and reduce costs. At the same time, the electric energy based on multiple power sources can meet the charging needs in different scenarios, providing a guarantee for the charging effect of the vehicle.

[0006] In some embodiments, the multiple power sources include at least two of an AC power grid, an energy storage system, and a new energy power generation system. Thus, using two or three of the AC power grid, the energy storage system, and the new energy power generation system as the power sources in the charging system can meet the charging needs in different scenarios and provide a guarantee for the charging effect of the vehicle.

[0007] In some embodiments, when the multiple power sources include the AC power grid, the energy storage system and the new energy power generation system, the power supply device includes: a first power conversion unit, one end of the first power conversion unit is connected to the AC power grid; a second power conversion unit, one end of the second power conversion unit is connected to the other end of the first power conversion unit, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit is connected to the multiple power supply interfaces; wherein the charging electric energy is output based on the electric energy of the AC power grid, the energy storage system and the new energy power generation system through the first power conversion unit and the second power conversion unit.

[0008] The first power conversion unit is used to convert the AC power provided by the AC power grid into DC power, and the second power conversion unit is used to convert the DC power provided by the first power conversion unit, the new energy power generation system, and the energy storage system into a target DC power output, so as to provide charging power to multiple power supply interfaces. In this way, the power of the AC power grid, the energy storage system, and the new energy power generation system is converted and output into charging power through the first power conversion unit and the second power conversion unit to meet the charging needs in different scenarios and provide guarantee for the charging effect of the vehicle.

[0009] In some embodiments, the first power conversion unit is a unidirectional ACDC (Alternating Current-Direct Current, AC-DC) conversion unit or a bidirectional ACDC conversion unit; and / or, the second power conversion unit is a unidirectional DCDC (Direct Current-Direct Current, DC-DC) conversion unit or a bidirectional DCDC conversion unit. In this way, unidirectional flow, bidirectional flow or partial bidirectional flow of energy can be achieved, which can be applied to energy requirements in different application scenarios.

[0010] In some embodiments, the power supply input interface and the power supply interface are connected in a plug-in manner, which makes the connection between the power supply input interface and the power supply interface more convenient and reliable, and solves the problem of high docking difficulty and high contact resistance that cannot meet the high-power charging requirements of electric vehicles when the charging pile is directly connected to the positive and negative poles of the power supply.

[0011] In some embodiments, the power input interface is a plug, and the power interface is a socket; or, the power input interface is a socket, and the power interface is a plug. In this way, the power input interface and the power output interface are connected in a plug-in manner, making the connection between the power input interface and the power interface more convenient and reliable, and solving the problem of high difficulty in docking when the charging pile is directly docked with the positive and negative poles of the power supply, and the problem of high contact internal resistance that cannot meet the high-power charging requirements of electric vehicles.

[0012] In some embodiments, the charging system further includes: a plurality of trigger components, the plurality of trigger components being arranged in one-to-one correspondence with the plurality of fixed parking spaces, the plurality of trigger components being configured to trigger the charging pile to move to their respective corresponding power supply interfaces; or, being configured to trigger the power supply input interface of the charging pile to retract to their respective corresponding power supply interfaces.

[0013] In the charging system, trigger components, fixed parking spaces, and power supply interfaces are set one by one. When charging is required, the trigger component is controlled to send a trigger signal to the charging pile. The charging pile can determine the target position based on the received trigger signal and move to the target position, or control the power supply input interface to extend to the target position. Then the owner connects the power supply input interface of the charging pile with the power supply interface at the target position, and connects the power supply input interface of the charging pile with the charging port of the vehicle to charge the vehicle. The charging pile can automatically move based on the status of multiple trigger components or control its own power supply input interface to automatically extend and retract, making the charging process more convenient.

[0014] In some embodiments, the trigger is a parking space information identifier that includes parking space information, the charging pile is also communicatively connected to a terminal device, the terminal device is configured to obtain the parking space information based on the parking space information identifier, and the charging pile is also configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device; or, the charging pile is also configured to control its own power supply input interface to be retracted to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

[0015] The parking space information of the target parking space is obtained by identifying the parking space information identifier of the target parking space through the terminal device, and the parking space information of the target parking space is sent to the charging pile based on wireless communication. The charging pile can automatically move to the target power supply interface of the target parking space according to the received parking space information of the target parking space, or control its own power supply input interface to extend to the target power supply interface, making the charging process more convenient.

[0016] In some embodiments, the parking space information is identified as a barcode or a QR code. In this way, the parking space information of the target parking space can be obtained by scanning the barcode or QR code of the target parking space through the terminal device, and the parking space information of the target parking space is sent to the charging pile based on wireless communication, so that the charging pile automatically moves to the target power supply interface according to the received parking space information, or controls its own power supply input interface to extend to the target power supply interface, making the charging process more convenient.

[0017] In some embodiments, the trigger is a parking switch, which is connected to the charging pile, and the charging pile is also configured to automatically move to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state; or, the charging pile is also configured to control its own power supply input interface to be retracted to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state.

[0018] Among them, the parking switch and the charging pile can be connected by wire or by wireless connection. For example, when the parking switch is a mechanical switch, the mechanical switch is set on one side of the corresponding fixed parking space, and the state of the mechanical switch is transmitted to the charging pile by wire; when the parking switch is an electronic switch, such as a pressure sensor, infrared sensor, etc., the vehicle in the corresponding parking space is detected by the electronic switch, and the detection result is sent to the charging pile by wire or wireless. When the charging pile recognizes that the state of the parking switch is the target state, the fixed parking space corresponding to the parking switch in the target state is used as the target parking space, and automatically moves to the target power supply interface corresponding to the target parking space, or controls its own power supply input interface to be retracted to the target power supply interface, so that the charging process is more convenient.

[0019] In some embodiments, the parking switch includes at least one of a mechanical switch, a pressure sensor, and an infrared sensor. When the charging pile recognizes that the state of the parking switch is the target state, it determines the target parking space based on the parking switch and automatically moves to the target power supply interface corresponding to the target parking space, or controls its own power supply input interface to extend to the target power supply interface, making the charging process more convenient.

[0020] In some embodiments, the charging pile is further provided with a sensing device and a moving device, and the charging pile is further configured to control the moving device to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device; or, the charging pile is further provided with a sensing device and a telescopic device, and the charging pile is further configured to control the telescopic device to drive the power input interface to telescope to the target power supply interface based on the surrounding environment information sensed by the sensing device. The charging pile can automatically move to the target power supply interface through the sensing device and the moving device, or the charging pile controls its own power input interface to telescope to the target power supply interface based on the sensing device and the telescopic device, without the need for human operation, making the charging process more convenient.

[0021] In some embodiments, the charging system further includes: a mobile route identifier, a plurality of pile position identifiers are provided on the mobile route identifier, and the plurality of pile position identifiers are arranged in one-to-one correspondence with the plurality of power supply interfaces, and the charging pile is further configured to control the mobile device to automatically move to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device; or, the charging pile is further configured to control the telescopic device to drive the power supply input interface to telescope to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device. Based on the mobile route identifier, the charging pile can quickly move to the target power supply interface, or control its own power supply input interface to quickly telescope to the target power supply interface, which not only improves the moving speed, but also does not require the laying of guide rails, saving costs.

[0022] In some embodiments, the number of the charging piles is greater than 1 and less than the number of the plurality of fixed parking spaces. In this way, multiple vehicles can be charged simultaneously through the plurality of charging piles, thereby meeting the need for charging multiple vehicles simultaneously.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] Figure 1 Schematic diagram of the connection of the charging system of some embodiments of the present application Figure 1 ;

[0026] Figure 2 Schematic diagram of the connection of the charging system of some embodiments of the present application Figure 2 ;

[0027] Figure 3 Schematic diagram of the connection of the charging system of some embodiments of the present application Figure 3 ;

[0028] Figure 4 This is a schematic diagram of the structure of a charging pile in some embodiments of the present application;

[0029] Figure 5 A schematic diagram of a charging system in a non-charging state according to some embodiments of the present application;

[0030] Figure 6 This is a schematic diagram of a charging system in a charging state according to some embodiments of the present application.

[0031] Reference numerals:

[0032] Charging system 100, charging pile 10, power supply input interface 11, power supply output interface 12, sensing device 13, mobile device 14, power supply interface 20, power supply device 30, first power conversion unit 31, second power conversion unit 32, trigger 40, mobile route identification 50, power supply 200. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0035] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0038] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0039] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] At present, in electric vehicle charging stations, one charging pile is installed for each parking space. This installation solution leads to high initial investment costs for charging stations. At the same time, in actual applications, the utilization rate of charging piles is low and the actual idle rate is high, resulting in a long investment recovery period and failure to make quick profits.

[0042] In the related art, a rail-type charging pile is used to provide charging services to multiple fixed parking spaces. The charging pile includes a charging pile body, which is arranged on a bottom plate, and a charging gun is arranged on the charging pile body. The charging pile also includes a guide rail frame, on which a guide rail is arranged, and the guide rails are interconnected. A power supply rack is arranged at the end of the corresponding guide rail above each fixed parking space, and a positive power supply block and a negative power supply block are arranged on the inner side of the power supply rack; the charging pile body is arranged above the guide rail, and a roller that can roll along the guide rail is arranged at the bottom of the bottom plate, and a positive electrode connection block that can be electrically connected to the positive power supply block and a negative electrode connection block that can be electrically connected to the negative power supply block are arranged on the charging pile body. This technical solution has the effect that one charging pile can correspond to multiple parking spaces, reducing the phenomenon of a large number of idle charging piles, and also has the advantage of intelligent control, making the entire charging process more convenient and safe.

[0043] However, this technical solution uses a solution where the positive and negative poles of the power supply at the charging pile and the parking space are directly connected, which makes automated connection difficult and cannot meet the problem of high-power charging of existing electric vehicles. At the same time, the exposed positive and negative electrodes have a high safety risk and cannot be promoted and applied in practice. In addition, there is only one charging pile, which cannot meet the charging needs of multiple vehicles at the same time.

[0044] In order to solve at least one of the above technical problems, the present application proposes a charging system. In the technical solution of the present application, multiple power supply interfaces are set one by one corresponding to multiple fixed parking spaces. The multiple power supply interfaces are connected to multiple power supplies through a power supply device. When the vehicle in the target parking space has a charging demand, the charging pile is moved to the target power supply interface corresponding to the target parking space, or the power supply input interface of the charging pile is extended to the target power supply interface corresponding to the target parking space. Then the owner connects the power supply input interface of the charging pile to the target power supply interface, and connects the power supply output interface of the charging pile, i.e., the charging gun, to the charging port of the vehicle. At this time, multiple power supplies establish a charging circuit with the vehicle through the power supply device, the target power supply interface and the charging pile, so as to charge the vehicle. The circuit design based on multiple power supplies can meet the charging power requirements in different scenarios, provide guarantee for the charging effect of the vehicle, and at the same time, the charging pile can meet the charging needs of vehicles in different parking spaces, reduce the number of charging piles installed, and reduce costs.

[0045] For the convenience of explanation, the following embodiments are combined Figure 1 The charging system of the present application is described.

[0046] like Figure 1 As shown, the charging system 100 of the present application is used to provide charging services to multiple fixed parking spaces. The charging system 100 includes: a charging pile 10, multiple power supply interfaces 20 and a power supply device 30.

[0047] Among them, a power supply input interface 11 is provided on the charging pile 10. Multiple power supply interfaces 20 are arranged in a one-to-one correspondence with multiple fixed parking spaces. The power supply device 30 is connected to the multiple power supply interfaces 20 and the multiple power supplies 200, and the power supply device 30 is configured to output charging power to the multiple power supply interfaces 20 based on the power of the multiple power supplies 200. Among them, when the charging pile 10 moves to the target power supply interface and the power supply input interface 11 of the charging pile 10 is connected to the target power supply interface, the charging pile 10 charges the vehicle in the target parking space corresponding to the target power supply interface based on the charging power.

[0048] Specifically, the charging pile 10 can be a movable charging pile, and the entire charging pile can be moved according to the needs, and the moving mode can be manual pushing, or it can be automatically moved based on the trigger command, or only the power input interface of the charging pile 10 can be telescopically moved according to the needs, and the telescopic control mode can be manual pulling, or it can be automatically telescopically moved based on the trigger command, without specific limitation. The charging pile 10 also has a power output interface 12 (such as Figure 4 The charging gun, for example, is connected to the charging port of the vehicle through the power output interface 12 to charge the vehicle. In addition, the charging pile 10 not only has the function of power conversion, such as stepping down the received charging power to output the target voltage to charge the vehicle, but also has the functions of charging monitoring, such as real-time monitoring of the vehicle power demand, charging voltage, charging current, charging time and other working parameters during the charging process for charging control.

[0049] The power supply interface 20 is set in one-to-one correspondence with the fixed parking space, and is set near the corresponding fixed parking space, and is used to connect to the power supply input interface 11 of the charging pile 10. At the same time, multiple power supply interfaces 20 are connected to multiple power supplies 200 through the power supply device 30, wherein the power supply 200 can be an AC power grid, an energy storage system, a photovoltaic system, etc., which is not specifically limited and is used to provide electric energy. The power supply device 30 is an electric energy conversion device, which is used to convert the electric energy provided by multiple power supplies 200 into charging electric energy, and then provide the charging electric energy to the charging pile 10 through the power supply interface 20 for vehicle charging. In addition, in addition to supplying power to the charging pile 10 through the power supply interface 20, the power supply device 30 also communicates with the charging pile 10 through the power supply interface 20. The communication content may include vehicle power demand, real-time charging working parameters, etc. Then, during the charging process, the power supply device 30 can distribute power based on the vehicle power demand and the current output power of each power supply 200 to ensure the charging quality.

[0050] When the vehicle needs to be charged, the owner parks the vehicle in the corresponding fixed parking space. The power supply interface corresponding to the fixed parking space is the target power supply interface. The charging pile 10 moves to the target power supply interface or the power input interface 11 of the charging pile 10 is extended to the target power supply interface. Then the owner connects the power input interface 11 of the charging pile 10 with the target power supply interface, and connects the charging gun of the charging pile 10 with the charging port of the vehicle. At this time, the vehicle establishes a charging circuit through the charging pile 10, the target power supply interface, the power supply device 30 and multiple power supplies 200, and charges the vehicle through the charging power provided by the multiple power supplies 200. During the charging process, the power supply device 30 communicates with the charging pile 10 to obtain the vehicle power demand, and distributes power to the multiple power supplies 200 based on the vehicle power demand to ensure the charging quality.

[0051] This embodiment is based on the fact that the charging pile 10 can meet the charging needs of vehicles in different parking spaces, reduce the number of charging piles installed, and reduce costs. At the same time, based on multiple power supplies, it can meet the charging kilometer requirements in different scenarios, and it is easy to achieve optimal power distribution output, thereby providing a guarantee for the vehicle charging effect.

[0052] In some embodiments of the present application, the plurality of power supplies 200 include at least two of an AC power grid, an energy storage system, and a new energy power generation system.

[0053] Specifically, the AC power grid is a network that outputs AC power and consists of AC output lines and substations. A new energy power generation system is a system that uses renewable energy (such as solar energy, wind energy, hydropower, etc.) to generate electricity, such as a photovoltaic power generation system and a wind power generation system. An energy storage system is a device system that converts electrical energy into chemical energy and stores it inside a battery, and is composed of multiple batteries.

[0054] Multiple power sources 200 can be composed of two or three of the AC power grid, energy storage system and new energy power generation system. During the charging process, the power supply priority or power allocation strategy of the multiple power sources 200 can be pre-set, and the power supply device 30 performs power allocation during the charging process based on the power supply priority or power allocation strategy.

[0055] For example, when multiple power sources 200 include an AC power grid and an energy storage system, the AC power grid is preferentially selected to provide electrical energy. When the output power of the AC power grid cannot meet the power demand of the vehicle, the energy storage system is controlled to provide supplementary power. At this time, the AC power grid and the energy storage system provide power at the same time.

[0056] For another example, when multiple power supplies 200 include an AC power grid and a new energy power generation system, the new energy power generation system is preferentially selected to provide electric energy. When the output power of the new energy power generation system cannot meet the power demand of the vehicle, the AC power grid is controlled to provide supplementary power. At this time, the AC power grid and the new energy power generation system simultaneously provide electric energy for vehicle charging. In addition, when the output power of the new energy power generation system is greater than the power demand of the vehicle, the excess electric energy can also be output to the AC power grid.

[0057] For another example, when the multiple power sources 200 include an energy storage system and a new energy power generation system, the new energy power generation system is preferentially selected to provide electric energy. When the output power of the new energy power generation system cannot meet the power demand of the vehicle, the energy storage system is controlled to provide supplementary power. At this time, the energy storage system and the new energy power generation system provide electric energy at the same time. In addition, when the output power of the new energy power generation system is greater than the power demand of the vehicle, the excess electric energy can also be output to the energy storage system for charging.

[0058] For another example, when multiple power sources 200 include an AC power grid, an energy storage system, and a new energy power generation system, the power supply priorities are from high to low: new energy power generation system, AC power grid, and energy storage system, to execute charging power distribution, and the specific control strategy is not limited.

[0059] This embodiment uses two or three of the AC power grid, the energy storage system and the new energy power generation system as the power supply 200, which can meet the charging needs in different scenarios and ensure the vehicle charging effect.

[0060] In some embodiments of the present application, Figure 2 As shown, in the case where multiple power supplies 200 include an AC power grid, an energy storage system and a new energy power generation system, the power supply device 30 includes: a first power conversion unit 31, one end of the first power conversion unit 31 is connected to the AC power grid; a second power conversion unit 32, one end of the second power conversion unit 32 is connected to the other end of the first power conversion unit 31, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit 32 is connected to multiple power supply interfaces; wherein, through the first power conversion unit 31 and the second power conversion unit 32, charging power is output based on the power of the AC power grid, the energy storage system and the new energy power generation system.

[0061] Specifically, the first power conversion unit 31 is used to convert the AC power provided by the AC power grid into DC power, and the second power conversion unit 32 is used to convert the DC power provided by the first power conversion unit 31, the new energy power generation system, and the energy storage system into a target DC power output, so as to provide charging power to the multiple power supply interfaces 20. In this way, the power of the AC power grid, the energy storage system, and the new energy power generation system is converted and output into charging power through the first power conversion unit 31 and the second power conversion unit 32 to meet the charging needs in different scenarios and ensure the charging effect of the vehicle.

[0062] In some embodiments of the present application, the first power conversion unit 31 is a unidirectional ACDC conversion unit or a bidirectional ACDC conversion unit; and / or, the second power conversion unit 32 is a unidirectional DCDC conversion unit or a bidirectional DCDC conversion unit.

[0063] Specifically, when the first power conversion unit 31 is a unidirectional ACDC conversion unit, the AC power provided by the AC power grid can only be converted into DC power for output through the first power conversion unit 31. When the first power conversion unit 31 is a bidirectional ACDC conversion unit, in addition to converting the AC power provided by the AC power grid into DC power for output through the first power conversion unit 31, the DC power can also be converted into AC power for output to the AC power grid through the first power conversion unit 31. For example, when the power output of the new energy power generation system is greater than the power required by the vehicle and the energy storage system is already fully charged, while controlling the new energy power generation system to provide power to charge the vehicle, the excess power can be output to the AC power grid through the first power conversion unit 31.

[0064] When the second power conversion unit 32 is a unidirectional DCDC conversion unit, electric energy can only be output from the first power conversion unit, the new energy power generation system and the energy storage system to the power supply interface 20 through the second power conversion unit 32 to provide charging electric energy for charging the vehicle. When the second power conversion unit 32 is a bidirectional DCDC conversion unit, bidirectional flow of electric energy between the first power conversion unit, the new energy power generation system and the energy storage system to the power supply interface 20 can be achieved.

[0065] For example, when the power supply device 30 adopts the first power conversion unit 31 as a unidirectional ACDC conversion unit and the second power conversion unit 32 as a unidirectional DCDC conversion unit, charging power is provided to the power supply interface 20 based on the AC power grid, the energy storage system and the new energy power generation system; when the power supply device 30 adopts the first power conversion unit 31 as a unidirectional ACDC conversion unit and the second power conversion unit 32 as a bidirectional DCDC conversion unit, in addition to providing charging power to the power supply interface 20 through the AC power grid, the energy storage system and the new energy power generation system, the energy storage system can also be charged by external direct current; when the power supply device 30 adopts the first power conversion unit 31 as a bidirectional ACDC conversion unit and the second power conversion unit 32 as a bidirectional DCDC conversion unit, in addition to providing charging power to the power supply interface 20 through the AC power grid, the energy storage system and the new energy power generation system, the energy storage system can also be charged by external direct current, and the new energy power generation system outputs power to the AC power grid, etc., to achieve bidirectional flow of power between the power supply interface 20 and the power supply 200.

[0066] This embodiment can realize unidirectional flow, bidirectional flow or partial bidirectional flow of energy to meet the energy requirements in different application scenarios, thereby improving vehicle charging effect and application flexibility.

[0067] In some embodiments of the present application, the power input interface 11 and the power interface 20 are connected in a plug-in manner.

[0068] One of the power supply input interface 11 and the power supply interface 20 is a socket, and the other is a corresponding plug. For example, the power supply input interface 11 is a plug, and the power supply interface 20 is a socket; or, the power supply input interface 11 is a socket, and the power supply interface 20 is a plug, which can be applied according to actual conditions. The power supply input interface 11 and the power supply interface 20 are connected by plugging, which makes the connection between the power supply input interface 11 and the power supply interface 20 more convenient and reliable, and solves the problem of difficulty in automatic docking in the related art of directly docking the charging pile with the positive and negative poles of the power supply at the parking space, and the high contact internal resistance cannot meet the high-power charging of electric vehicles.

[0069] In some embodiments of the present application, Figure 3 As shown, the charging system 100 also includes: multiple trigger components 40, which are arranged in a one-to-one correspondence with multiple fixed parking spaces, and the multiple trigger components 40 are configured to trigger the charging pile 10 to move to the respective corresponding power supply interfaces; or, are configured to trigger the power supply input interface 11 of the charging pile 10 to retract to the respective corresponding power supply interfaces.

[0070] Specifically, the trigger member 40 , the fixed parking space and the power supply interface 20 are arranged in a one-to-one correspondence.

[0071] The trigger 40 is used to trigger the charging pile 10 to move to the corresponding power supply interface, or to automatically extend the power supply input interface 11 to the corresponding power supply interface. Among them, the trigger 40 can be a device that can send a corresponding trigger signal by itself, or it can be used as an intermediate medium for generating a corresponding trigger signal. For example, the trigger 40 can be a mechanical switch, and the mechanical switch is connected to the charging pile 10 by wire. At this time, the trigger 40 can be manually controlled to close or disconnect, so as to output a corresponding trigger signal to the charging pile 10; the trigger 40 can also be a detection sensor, and the detection sensor is wirelessly connected to the charging pile 10. At this time, the detection sensor can automatically detect whether there is a vehicle parked in the parking space to output a corresponding trigger signal to the charging pile 10; the trigger 40 can also be a two-dimensional code, a radio frequency tag, etc. that stores location information, as an intermediate medium for generating a trigger signal. At this time, the user scans and identifies the trigger 40 through a mobile phone and sends a corresponding trigger signal to the charging pile 10.

[0072] It is understandable that the trigger signal includes location information. After receiving the trigger signal, the charging pile 10 can determine the target parking space, i.e., the fixed parking space corresponding to the trigger member 40 that sends the trigger signal with charging demand based on signal analysis, and automatically move to the corresponding target power supply interface, or control its own power supply input interface 11 to extend to the target power supply interface, so as to perform subsequent vehicle charging.

[0073] This embodiment can make the charging pile 10 automatically move to the target power supply interface, or control its own power supply input interface 11 to be extended to the target power supply interface, through the provision of multiple trigger components 40, so as to make the charging process more convenient.

[0074] In some embodiments of the present application, the trigger 40 is a parking space information identifier that includes parking space information, the charging pile 10 is also communicatively connected with the terminal device, the terminal device is configured to obtain the parking space information based on the parking space information identifier, and the charging pile 10 is also configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device; or, the charging pile 10 is also configured to control its own power supply input interface 11 to be retracted to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

[0075] Specifically, the parking space information identifier is a carrier for storing parking space information, such as a barcode, a QR code, a radio frequency tag, etc. The terminal device is a device terminal that can identify the parking space information identifier, such as a mobile phone equipped with a target APP (Application, mobile phone software).

[0076] Taking the parking space information identified as a QR code as an example, assuming that the user parks the vehicle in a fixed parking space with serial number O2, the user scans and identifies the QR code of parking space 02 through a mobile phone, obtains the parking space information stored in the QR code, i.e., serial number 02, and generates a trigger signal based on the parking space information and sends it to the charging pile 10. The charging pile 10 receives the trigger signal to wake up, and parses the received trigger signal to obtain the parking space information, i.e., serial number 02. Then, the charging pile 10 can automatically move to the power supply interface 20 of the parking space 02, or control its own power supply input interface 11 to automatically retract to the power supply interface 20 of the parking space 02. Then, the user connects the power supply input interface 11 of the charging pile 10 to the power supply interface 20 of the parking space 02, and connects the charging gun of the charging pile 10 to the charging port of the vehicle to charge the vehicle through the electric energy output by the power supply 200.

[0077] Therefore, the parking space information identifier of the target parking space is identified by the terminal device to obtain the parking space information of the target parking space, and the parking space information of the target parking space is sent to the charging pile based on wireless communication. The charging pile 10 automatically moves to the target power supply interface of the target parking space according to the received parking space information of the target parking space, or controls its own power supply input interface 11 to automatically retract to the target power supply interface, making the charging process more convenient.

[0078] In some embodiments of the present application, the trigger 40 is a parking switch, which is connected to the charging pile 10. The charging pile 10 is also configured to automatically move to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state; or, the charging pile 10 is also configured to control its own power supply input interface 11 to be retracted to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state.

[0079] Specifically, the parking switch can be a mechanical switch or an electronic switch, and the parking switch can be set at the parking pile or at the parking space. The connection between the parking switch and the charging pile 10 can be wireless or wired. For example, when the parking switch is a mechanical switch, the mechanical switch is set on one side of the corresponding parking space, and the user controls the opening or closing of the mechanical switch. At this time, the state of the mechanical switch is transmitted to the charging pile 10 by wire; when the parking switch is an infrared sensor, the infrared sensor can be set on one side of the corresponding parking space, and the infrared sensor is used to automatically identify whether a vehicle is parked in the corresponding parking space. At this time, it is sent to the charging pile 10 by wire or wireless; when the parking switch is a pressure sensor, the pressure sensor is set in a fixed parking space, and pressure detection is used to determine whether a vehicle enters. At this time, it can be transmitted to the charging pile 10 by wire or wireless.

[0080] The target state is used to indicate that there is a charging demand at the corresponding position. For example, when the parking switch is a mechanical switch, the closed state of the mechanical switch is the target state, and after the mechanical switch is pressed by a person, the target state is transmitted to the charging pile 10 via a wired manner.

[0081] When the charging pile 10 recognizes that the state of the parking switch is the target state, it takes the fixed parking space corresponding to the parking switch in the target state as the target parking space, and automatically moves to the target power supply interface corresponding to the target parking space, or controls its own power supply input interface 11 to be retracted to the target power supply interface, making the charging process more convenient.

[0082] In some embodiments of the present application, the parking switch includes at least one of a mechanical switch, a pressure sensor, and an infrared sensor.

[0083] Specifically, the parking switch of each fixed parking space can adopt one or more of a mechanical switch, a pressure sensor and an infrared sensor. Exemplarily, the parking switch adopts a combination of a mechanical switch and an infrared sensor. When the user correctly parks the vehicle in parking space 02, the infrared sensor of parking space 02 detects that a vehicle has parked, and at the same time, the user presses the mechanical switch of parking space 02. The charging pile determines that the parking switch of parking space 02 is in the target state based on the infrared detection result of parking space 02 and the closed state of the mechanical switch, and then automatically moves to the power supply interface of parking space 02, or controls its own power supply input interface 11 to be extended to the target power supply interface, so as to charge the vehicle in parking space 02. In this way, when the charging pile 10 recognizes that the state of the parking switch is the target state, it determines the target parking space based on the parking switch, and automatically moves to the target power supply interface corresponding to the target parking space, or controls its own power supply input interface 11 to be extended to the target power supply interface, so as to make the charging process more convenient.

[0084] In some embodiments of the present application, Figure 4 As shown, the charging pile 10 is also provided with a sensing device 13 and a moving device 14, and the charging pile 10 is also configured to control the moving device 14 to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device 13; or, the charging pile 10 is also provided with a sensing device 13 and a telescopic device, and the charging pile 10 is also configured to control the telescopic device to drive the power input interface 11 to telescope to the target power supply interface based on the surrounding environment information sensed by the sensing device 13.

[0085] Specifically, the sensing device 13 is used to detect surrounding environment information, such as whether there are obstacles in the forward direction, current location information, whether the target location has been reached, etc. The sensing device 13 includes a radar, a position sensor, a scanning recognition device, etc. The sensing device 13 can determine the moving route based on the surrounding environment information obtained by identification to control the movement of the mobile device 14, or control the telescopic device to drive the power input interface 11 to telescope and determine whether the target power input interface has been reached. The mobile device 14 may include a control unit, a drive motor, and moving parts such as rollers installed on the charging pile 10. The telescopic device may also include a control unit, a drive motor, and moving parts installed on the power input interface 11 to drive the power input interface 11 to move and realize the extension or retraction of the power input interface 11. The specific structure can be applied according to actual conditions.

[0086] In addition, the charging pile 10 may or may not adopt a guide rail structure. For example, when the guide rail structure is adopted, the sensing device 13 may identify the surrounding environment information by identifying the position mark on the guide rail structure, and control the moving device 14 or the telescopic device to move along the guide rail, and the moving device 14 or the telescopic device may include a bottom clamping position that matches the guide rail; when the guide rail structure is not adopted, the sensing device 13 may identify the surrounding environment information through the identification information set in the surrounding area to determine whether the target position has been reached, and then control the moving device 14 or the telescopic device to move.

[0087] In this embodiment, the charging pile 10 automatically moves to the target power supply interface through the sensing device 13 and the moving device 14, or the power input interface 11 is automatically extended to the target power supply interface based on the sensing device 13 and the extension device, making the charging process more convenient and reducing manual participation.

[0088] In some embodiments of the present application, Figure 5 and Figure 6 As shown, the charging system 100 also includes: a mobile route identifier 50, a plurality of pile position identifiers are arranged on the mobile route identifier 50, and the plurality of pile position identifiers are arranged in a one-to-one correspondence with the plurality of power supply interfaces 20. The charging pile 10 is also configured to control the mobile device 14 to automatically move to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device 13; or, the charging pile 10 is also configured to control the telescopic device to drive the power supply input interface 11 to telescope to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device 13.

[0089] Specifically, the moving route mark 50 is used to mark the moving path of the charging pile 10, and the charging pile 10 or the power input interface 11 of the charging pile 10 moves along the moving route mark 50. The pile position mark is used to mark the parking position of the charging pile 10 in each fixed parking space. The pile position mark, the power interface 20 and the fixed parking space correspond one to one. When the charging pile 10 moves to the target power interface, the charging pile 10 stops at the parking position corresponding to the target power interface, that is, the pile position mark; or when the power input interface 11 of the charging pile 10 moves to the target power interface, the power input interface 11 stops at the parking position corresponding to the target power interface, that is, the pile position mark.

[0090] For example, there are five fixed parking spaces, namely parking space 01, parking space 02, parking space 03, parking space 04 and parking space 05. Five power supply interfaces 20 are respectively provided corresponding to the five fixed parking spaces, namely power supply interface 1, power supply interface 2, power supply interface 3, power supply interface 4 and power supply interface 5. The mobile route mark 50 is provided with five pile position marks corresponding to the five power supply interfaces 20, namely pile position 1, pile position 2, pile position 3, pile position 4 and pile position 5. When there is no demand for charging, that is, when no vehicle is parked in any of the five parking spaces, the charging pile 10 is parked at a preset position; when there is a demand for charging, the charging pile 10 can be moved to the target position based on a trigger signal. For example, when a vehicle is parked in parking space 02 as determined by the parking space switch and the vehicle needs to be charged, the charging pile 10 moves along the moving route marker 50, and when position 2 is identified by the sensing device 13, the mobile device 14 is controlled to stop the charging pile 10 at position 2. The user connects the power supply input interface 11 of the charging pile 10 to the power supply interface 2, and the charging gun of the charging pile 10 is connected to the charging port of the vehicle to charge the vehicle.

[0091] In this embodiment, the charging pile 10 can automatically move to the target position based on the moving route mark 50 or control its own power input interface 11 to automatically extend to the target position without laying guide rails, which is not only fast but also cost-effective.

[0092] In some embodiments of the present application, the number of charging piles 10 is greater than 1 and less than the number of multiple fixed parking spaces.

[0093] When there are multiple charging piles 10, the triggering and awakening sequence of the multiple charging piles 10 can be set in advance. The charging piles 10 are awakened according to the preset triggering sequence and moved to the target position to perform the charging process. For example, the preset serial number can be used as the triggering sequence.

[0094] This embodiment can charge multiple vehicles at the same time through multiple charging piles 10, meeting the demand for charging multiple vehicles at the same time.

[0095] As a specific embodiment of the present application, Figure 4 and Figure 5 As shown, the charging system 100 includes two movable charging piles, which are represented by charging pile 1 and charging pile 2 respectively; there are five fixed parking spaces, which are represented by parking space 01, parking space 02, parking space 03, parking space 04, and parking space 05 respectively, and a corresponding QR code is set for each fixed parking space as a location identification code; a power supply interface is set near each parking space, which is represented by power supply interface 1, power supply interface 2, power supply interface 3, power supply interface 4, and power supply interface 5 respectively, and the five power supply interfaces are connected to the AC power grid and the energy storage system through the power supply device 30. In the power supply device 30, the first power charging unit 31 is a bidirectional AC / DC conversion unit, and the second power charging unit 32 is a bidirectional DC / DC conversion unit, and the specific connection is shown in the figure. Two charging piles are set in the charging system 100, namely charging pile 1 and charging pile 2. The charging piles can move autonomously according to the preset program, and the user can trigger the charging pile to move to the corresponding position by scanning the QR code of the corresponding parking space.

[0096] Specifically, when there is no vehicle charging, such as Figure 4 As shown, charging pile 1 and charging pile 2 are parked at fixed standby positions. Figure 5 As shown, the user parks the vehicle to be charged in parking space 02, and obtains the parking space information corresponding to parking space 02 by scanning the QR code corresponding to parking space 02 with a mobile phone, and generates trigger information based on the parking space information corresponding to parking space 02 and sends it to the charging pile. The charging pile 1 is awakened based on the trigger signal, and identifies the trigger information to determine that the target position is pile position 2, and automatically moves to pile position 2 through the sensing device 13 and the mobile device 14. Then the user inserts the power input interface of the charging pile 1 into the power supply interface 2, and the charging gun of the charging pile 1 is connected to the charging port of the vehicle to start charging the vehicle. During the charging process, the power supply device 30 obtains the vehicle power demand based on the communication and the number of connected charging vehicles is 1, and distributes the power of the current energy storage system and the AC power grid according to the vehicle power demand and the number of connected charging vehicles until charging is completed. The charging pile 1 automatically returns to the standby position.

[0097] During the charging process of charging pile 1, if another vehicle to be charged parks in parking space 03, the owner obtains the parking space information corresponding to parking space 03 by scanning the QR code corresponding to parking space 03 through the mobile phone, and generates trigger information based on the parking space information corresponding to parking space 03 and sends it to the charging pile. Since charging pile 1 is charging, charging pile 2 is awakened based on the trigger signal, and identifies the trigger information to determine that the target position is pile position 3. Charging pile 2 moves to pile position 3 through its own sensing device 13 and mobile device 14 to charge the vehicle at parking space 03. During the charging process, the power supply device 30 obtains the vehicle power demand based on communication and the number of connected charging vehicles is 2, and distributes the power of the current energy storage system and the AC power grid according to the vehicle power demand and the number of connected charging vehicles until charging is completed. Charging pile 2 automatically returns to the standby position.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A charging system, characterized in that: For providing charging services for multiple fixed parking spaces, the system comprises: A charging pile, wherein the charging pile is provided with a power supply input interface; A plurality of power supply interfaces, wherein the plurality of power supply interfaces are arranged in a one-to-one correspondence with the plurality of fixed parking spaces; a power supply device, the power supply device being connected to the plurality of power supply interfaces and the plurality of power supply sources, and being configured to output charging power to the plurality of power supply interfaces based on power of the plurality of power supply sources; Among them, when the charging pile moves to the target power supply interface and the power supply input interface of the charging pile is connected to the target power supply interface, or when the power supply input interface of the charging pile is retracted to the target power supply interface and connected to the target power supply interface, the charging pile charges the vehicle in the target parking space corresponding to the target power supply interface based on the charging power.

2. The charging system according to claim 1, characterized in that: The multiple power sources include at least two of an AC power grid, an energy storage system, and a new energy power generation system.

3. The charging system according to claim 2, characterized in that: In the case where the multiple power supplies include the AC power grid, the energy storage system and the new energy power generation system, the power supply device includes: A first power conversion unit, one end of which is connected to the AC power grid; A second power conversion unit, one end of the second power conversion unit is connected to the other end of the first power conversion unit, the energy storage system and the new energy power generation system, and the other end of the second power conversion unit is connected to the multiple power supply interfaces; wherein, through the first power conversion unit and the second power conversion unit, the charging electric energy is output based on the electric energy of the AC power grid, the energy storage system and the new energy power generation system.

4. The charging system according to claim 3, characterized in that: The first power conversion unit is a unidirectional ACDC conversion unit or a bidirectional ACDC conversion unit; and / or the second power conversion unit is a unidirectional DCDC conversion unit or a bidirectional DCDC conversion unit.

5. The charging system according to any one of claims 1 to 4, characterized in that: The power supply input interface and the power supply interface are connected in a plug-in manner.

6. The charging system according to claim 5, characterized in that: The power supply input interface is a plug, and the power supply interface is a socket; or, the power supply input interface is a socket, and the power supply interface is a plug.

7. The charging system according to any one of claims 1 to 4, characterized in that: The system further comprises: A plurality of trigger members are provided corresponding to the plurality of fixed parking spaces in a one-to-one manner, and the plurality of trigger members are configured to trigger the charging pile to move to the respective corresponding power supply interfaces; or, are configured to trigger the power supply input interface of the charging pile to retract to the respective corresponding power supply interface.

8. The charging system according to claim 7, characterized in that: The trigger is a parking space information identifier including parking space information, the charging pile is also in communication connection with a terminal device, the terminal device is configured to obtain the parking space information based on the parking space information identifier, and the charging pile is also configured to automatically move to the target power supply interface based on the parking space information of the target parking space sent by the terminal device; Alternatively, the charging pile is further configured to control its own power supply input interface to be extended to the target power supply interface based on the parking space information of the target parking space sent by the terminal device.

9. The charging system according to claim 8, characterized in that: The parking space information is identified as a barcode or a QR code.

10. The charging system according to claim 7, characterized in that: The trigger is a parking switch, which is connected to the charging pile. The charging pile is also configured to automatically move to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state; or, the charging pile is also configured to control its own power supply input interface to be retracted to the target power supply interface when the state of the parking switch corresponding to the target parking space is the target state.

11. The charging system according to claim 10, characterized in that: The parking switch includes at least one of a mechanical switch, a pressure sensor and an infrared sensor.

12. The charging system according to any one of claims 1 to 4, characterized in that: The charging pile is also provided with a sensing device and a moving device, and the charging pile is further configured to control the moving device to automatically move to the target power supply interface based on the surrounding environment information sensed by the sensing device; or, the charging pile is also provided with a sensing device and a telescopic device, and the charging pile is further configured to control the telescopic device to drive the power input interface to telescope to the target power supply interface based on the surrounding environment information sensed by the sensing device.

13. The charging system according to claim 12, characterized in that: The system further comprises: A mobile route identifier, wherein a plurality of pile position identifiers are provided on the mobile route identifier, and the plurality of pile position identifiers are arranged in a one-to-one correspondence with the plurality of power supply interfaces. The charging pile is further configured to control the mobile device to automatically move to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device; or, the charging pile is further configured to control the telescopic device to drive the power supply input interface to telescope to the target pile position identifier corresponding to the target power supply interface based on the surrounding environment information perceived by the sensing device.

14. The charging system according to any one of claims 1 to 4, characterized in that: The number of the charging piles is greater than 1 and less than the number of the plurality of fixed parking spaces.

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