Charging device, new energy vehicle and charging control method

Abstract

The invention discloses a charging device, a new energy vehicle and a charging control method, and relates to the technical field of charging, and the charging device comprises a control module which is connected with a plurality of charging guns and a distribution module; the distribution module is further connected with a plurality of charging guns and a battery pack. A plurality of charging guns are connected through the distribution module to form a plurality of charging branches, and the on-off of each branch is controlled by the control module. The control module outputs a gating signal to the distribution module after identifying the charging gun, the distribution module gates the charging branch and is connected with the battery pack to form a complete charging loop based on the gating signal, simultaneous charging of the multiple charging guns can be realized, the charging guns of the national standard and the European standard can be compatible, and the application scene is widened while the charging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging device, a new energy vehicle and a charging control method. Background Art

[0002] With the continuous growth of the global economy and the continuous increase in population, the reserves of traditional fossil fuels are gradually decreasing, and the problem of energy shortage is becoming increasingly prominent. As an important solution to replace traditional fuel vehicles, the development of new energy vehicles has received widespread attention.

[0003] In order to deal with environmental problems and energy shortages, countries around the world have introduced relevant policies to promote the development of the new energy vehicle industry. However, new energy vehicle charging technology still faces some challenges, such as charging speed, compatibility, and layout rationality. Different brands and models of electric vehicles use different charging standards and interfaces, which leads to compatibility issues for charging piles. Summary of the invention

[0004] The main purpose of this application is to provide a charging device, a new energy vehicle and a charging control method, aiming to solve the technical problems of limited application scenarios or long charging time of existing charging technologies.

[0005] To achieve the above-mentioned purpose, the present application proposes a charging device, which includes: a distribution module and a control module; the control module is respectively connected to multiple charging guns and the distribution module; the distribution module is also respectively connected to multiple charging guns and battery packs; the control module is used to identify the standard signal of the connected charging gun, convert the standard signal into a corresponding selection signal, and output it to the distribution module; the distribution module is used to select the charging gun based on the selection signal after receiving the selection signal, establish a connection between the charging gun and the battery pack to realize charging of the battery pack.

[0006] In one embodiment, the charging device also includes: a high-voltage protection module; the distribution module is connected to the battery pack through the high-voltage protection module; the high-voltage protection module is also connected to the control module; the distribution module is used to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the high-voltage protection module; the control module is also used to detect the temperature of the charging device, and when the temperature exceeds the temperature threshold, output a circuit breaker signal to the high-voltage protection module; the high-voltage protection module is used to disconnect the battery pack from the distribution module after receiving the circuit breaker signal.

[0007] In one embodiment, the charging device also includes: a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller and a second EVCC controller; each of the national standard sockets is connected to the control module and is used to connect to the national standard charging gun; the first European standard socket and the second European standard socket are connected to the control module through the first EVCC controller and the second EVCC controller respectively, and are used to connect to the European standard charging gun; each of the EVCC controllers is used to establish communication between each of the European standard sockets and the control module.

[0008] In one embodiment, the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket all include NTC resistors; each of the NTC resistors is connected to the control module respectively; the control module is also used to identify the temperature of the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket based on the resistance change of each of the NTC resistors; when the temperature exceeds the temperature threshold, the high-voltage protection module is controlled to disconnect the battery pack from the distribution module.

[0009] In one embodiment, the distribution module includes: a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay and a second European standard negative relay; the control end of each of the relays is connected to the control module respectively; the first contact of the first national standard positive relay and the first contact of the first national standard negative relay are connected to the first national standard socket respectively; the first contact of the first European standard positive relay and the first contact of the first European standard negative relay are connected to the first European standard socket respectively; the first contact of the second national standard positive relay and the first contact of the second national standard negative relay The first contact is respectively connected to the second national standard socket; the first contact of the second European standard positive relay and the first contact of the second European standard negative relay are respectively connected to the second European standard socket; the second contact of each relay is respectively connected to the high-voltage protection module; the second contact of the first national standard positive relay is also connected to the second contact of the first European standard positive relay; the second contact of the second national standard positive relay is also connected to the second contact of the second European standard positive relay; the second contact of the first national standard negative relay is also connected to the second contact of the first European standard negative relay; the second contact of the second national standard negative relay is also connected to the second contact of the second European standard negative relay.

[0010] In one embodiment, the high-voltage protection module includes: a first charging positive relay, a second charging positive relay, a first charging negative relay and a second charging negative relay; the control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the control module; the first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the distribution module; the second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the battery pack.

[0011] In addition, to achieve the above-mentioned purpose, the present application also proposes a new energy vehicle, which uses the charging device as described above.

[0012] In addition, to achieve the above-mentioned purpose, the present application also proposes a charging control method, which includes: identifying the selection signal input by the control module; determining the corresponding charging standard according to the selection signal; and controlling the distribution module and the high-voltage protection module to be turned on based on the charging standard to charge the charging pack.

[0013] In one embodiment, the step of identifying the enable signal input by the control module also includes: identifying the standard signal of the charging gun; based on the standard signal, determining whether the national standard charging gun and the European standard charging gun are both in a connected state; when the national standard charging gun and the European standard charging gun are not both in a connected state, converting the standard signal of the charging gun into an enable signal and outputting it to the distribution module to enter the charging process.

[0014] In one embodiment, the step of determining whether both the national standard charging gun and the European standard charging gun are in a connected state based on the standard signal further includes: if both the national standard charging gun and the European standard charging gun are in a connected state, entering the charging process is not allowed.

[0015] One or more technical solutions proposed in this application have at least the following technical effects: multiple charging guns are connected through a distribution module to form multiple charging branches, and each branch is controlled by the control module. After the control module identifies the charging gun, it outputs a selection signal to the distribution module. Based on the selection signal, the distribution module selects the charging branch and connects the battery pack to form a complete charging circuit, which can realize simultaneous charging of multiple charging guns. At the same time, both national standard and European standard charging guns are compatible, which improves charging efficiency and broadens the application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A structural block diagram provided for an embodiment of a charging device of the present application;

[0019] Figure 2 A structural block diagram of a feasible implementation method provided for the charging device embodiment of the present application;

[0020] Figure 3 A high voltage schematic diagram of a feasible implementation scheme provided for the first embodiment of the charging device of the present application;

[0021] Figure 4 A low-voltage schematic diagram of a feasible implementation scheme provided for the first embodiment of the charging device of the present application;

[0022] Figure 5 A flow chart of a charging control method embodiment of the present application.

[0023] Description of Figure Numbers:

[0024] Label illustrate Label illustrate 10 Assignment Module 30 High voltage protection module 20 Control Module

[0025] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0027] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In the existing technology, the charging circuit of new energy commercial vehicles is distributed by the BDU (Battery Disconnect Unit) high-voltage box, which plays a key role in the power management of new energy commercial vehicles. However, the current configuration, that is, the dual charging branches can only be configured with dual guns and dual standards or dual guns and single standards, does face some challenges, mainly reflected in the two aspects of limited application scenarios and long charging time.

[0029] The current configuration limits the flexible use of new energy commercial vehicles in different scenarios. For example, in certain scenarios, only one charging gun may be needed for charging, while the other charging gun is idle, which results in a waste of resources. At the same time, for some scenarios that require fast and efficient charging, such as long-distance transportation or emergency missions, the current charging configuration may not be able to meet the needs of fast energy replenishment.

[0030] Based on this, in order to solve the technical problems of limited application scenarios or long charging time of existing charging technologies, this application proposes a charging device. Figure 1 , Figure 1 A structural block diagram of a charging device embodiment of the present application.

[0031] In this embodiment, the charging device includes: a distribution module 10 and a control module 20 .

[0032] The control module 20 is respectively connected to a plurality of charging guns and the distribution module 10; the distribution module 10 is also respectively connected to a plurality of charging guns and a battery pack.

[0033] It should be noted that the control module 20 connecting multiple charging guns is a communication connection, which is intended to identify various characteristics and states of the charging guns. This communication connection is not limited to physical connection (such as through cables or connectors), but more importantly includes information-level interaction.

[0034] It is understandable that the connection of the distribution module 10 to multiple charging guns is a charging connection for transmitting power to support the battery pack charging process of the new energy commercial vehicle. The above connections can all be established by designing a suitable socket to support connection support.

[0035] It is understandable that connecting multiple charging guns means that multiple charging guns can be charged at the same time, which depends on the port settings of the distribution module, but charging guns of different standards cannot be used at the same time, so the distribution module needs to select the charging gun and establish a connection with the battery pack.

[0036] It should be noted that the allocation module 10 is used to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the battery pack to realize charging of the battery pack.

[0037] It is understandable that the distribution module 10 is responsible for reasonably distributing the energy from multiple charging guns to the battery pack. It may include components such as high-voltage contactors, current sensors, fuses, etc. to achieve this function to ensure the safety and reliability of power transmission.

[0038] It should be noted that the control module 20 is used to identify the standard signal of the connected charging gun, convert the standard signal into a corresponding selection signal, and output it to the distribution module.

[0039] It should be noted that the standard signal of the charging gun contains key information such as the charging gun model, power level, communication protocol, etc. Therefore, by identifying the standard signal of the connected charging gun, the type of charging gun can be accurately determined to avoid impacts caused by different types of charging guns.

[0040] It should be noted that the control module 20 will also establish a communication connection with the battery pack. When the battery pack is fully charged or reaches the preset charging target, the control module 20 will send an instruction to the distribution module 10 to disconnect the charging connection. At the same time, the control module 20 can also record key data during the charging process, such as charging time, charging amount, energy consumption, etc., for subsequent analysis and optimization.

[0041] In addition, the setting of the distribution module also adds more flexibility to the charging device. It can be configured into a detachable and add-on mechanism for expansion according to the company's target charging needs, thereby meeting the ever-changing market demands and technological developments.

[0042] It can be understood that the specific workflow of this embodiment is as follows: when multiple charging guns are inserted into the charging device, the control module 20 first identifies its standard signal. This usually involves the contact of the physical interface and the handshake process of the communication protocol. Based on the identified charging gun information, the control module 20 generates a corresponding selection signal. These signals contain all the necessary information required to establish a charging connection. After receiving the selection signal, the distribution module 10 selectively closes or disconnects the high-voltage contactor according to the instructions in the signal, thereby establishing or disconnecting the electrical connection between the charging gun and the battery pack. This step ensures that electricity can be safely and efficiently transmitted to the battery pack.

[0043] In this embodiment, multiple charging guns are connected through the distribution module to form multiple charging branches, and each branch is controlled by the control module. After the control module identifies the charging gun, it outputs a selection signal to the distribution module. Based on the selection signal, the distribution module selects the charging branch and connects the battery pack to form a complete charging circuit, which can realize simultaneous charging of multiple charging guns. At the same time, both national standard and European standard charging guns are compatible, which improves charging efficiency and broadens the application scenarios.

[0044] For further information, see Figure 2 , Figure 2 The structural block diagram of a feasible implementation of the charging device embodiment of the present application is provided. In a feasible implementation, in combination with the above contents, the charging device may further be provided with: a high voltage protection module 30 .

[0045] It should be noted that, in this embodiment, the distribution module 10 is connected to the battery pack via the high-voltage protection module 30 ; the high-voltage protection module 30 is also connected to the control module 20 .

[0046] It should be noted that the allocation module 10 is used to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the high-voltage protection module 30 .

[0047] It is understandable that the high voltage protection module 30 is located between the distribution module 10 and the battery pack, and plays a role of electrical isolation. It can quickly cut off the circuit when abnormal voltage or current is detected to protect the battery pack and the charging device from damage.

[0048] Specifically, the control module 20 is also used to detect the temperature of the charging device, and when the temperature exceeds the temperature threshold, output a disconnection signal to the high voltage protection module 30. The high voltage protection module 30 is used to disconnect the battery pack from the distribution module 10 after receiving the disconnection signal.

[0049] It is understandable that, by connecting with the control module 20, the high voltage protection module 30 can receive temperature monitoring information from the control module 20. When the temperature of the charging device exceeds a preset temperature threshold, the control module 20 will send a disconnection signal, and the high voltage protection module 30 will respond to this signal and disconnect the battery pack from the distribution module 10 to prevent safety accidents caused by overheating.

[0050] In this embodiment, the introduction of the high-voltage protection module 30 enables the charging device to respond more quickly and accurately when faced with abnormal situations, thereby enhancing the stability and reliability of the entire charging system. Once the high-voltage protection module 30 receives the disconnection signal and disconnects, the entire charging system will enter a fault protection state. At this time, the charging device will stop charging and may need to wait for a period of time or perform specific troubleshooting and repairs before resuming normal operation. This fault protection mechanism helps prevent potential safety hazards from further expanding and provides users with a safer charging environment.

[0051] In combination with the above content, this application provides a specific structure that can be optionally configured in the embodiment, please refer to Figure 3 , Figure 3 A high voltage schematic diagram of a feasible implementation scheme provided for the first embodiment of the charging device of the present application.

[0052] Taking 4 charging guns (2 national standard charging guns and 2 European standard charging guns) as an example, the distribution module 10 includes: a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay and a second European standard negative relay; the control ends of each of the relays are respectively connected to the control modules.

[0053] like Figure 3 As shown, the distribution module 10 has, from top to bottom, the normally open contacts of the first national standard positive relay, the first European standard positive relay, the second national standard positive relay, the second European standard positive relay, the first national standard negative relay, the first European standard negative relay, the second national standard negative relay and the second European standard negative relay.

[0054] It should be noted that the first contacts of each of the relays are respectively connected to the corresponding charging gun sockets; the second contacts of each of the relays are respectively connected to the high-voltage protection module; the second contact of the first national standard positive relay is also connected to the second contact of the first European standard positive relay; the second contact of the second national standard positive relay is also connected to the second contact of the second European standard positive relay; the second contact of the first national standard negative relay is also connected to the second contact of the first European standard negative relay; the second contact of the second national standard negative relay is also connected to the second contact of the second European standard negative relay.

[0055] It is understandable that the distribution module 10 is configured in this way to form four input branches and two output branches for selection. When the control module determines that a charging gun is to be charged, it sends a signal to the control end of the corresponding positive relay and negative relay to close these relays. In this way, the charging gun current can flow to the high-voltage protection module 30 through the closed relay contacts, and then flow to the battery pack.

[0056] The high-voltage protection module 30 includes: a first charging positive relay, a second charging positive relay, a first charging negative relay, and a second charging negative relay; the control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are respectively connected to the control module.

[0057] It should be noted that if Figure 3As shown, the relay contacts of the high-voltage protection module 30 are the contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay, the second charging negative relay and the main negative relay from top to bottom. The first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are connected to the distribution module respectively; the second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are connected to the battery pack respectively.

[0058] It is understandable that the high voltage protection module 30 is configured in this way to form dual input branches and dual output branches for selection. When the control module decides to start charging, it sends a closing signal to the corresponding relays in the high voltage protection module 30. After these relays are closed, the charging current can flow from the distribution module to the battery pack through them.

[0059] It is understandable that if an abnormal situation occurs during the charging process (such as overcurrent, overvoltage, overheating, etc.), the control module will quickly send a disconnect signal to the high-voltage protection module 30. These relays will open immediately after receiving the disconnect signal, thereby cutting off the charging current and protecting the battery pack and the charging device from damage. Once the abnormal situation is resolved, the control module can resend a closing signal to the high-voltage protection module 30 to resume the charging process. This fault recovery mechanism improves the reliability and availability of the charging device.

[0060] Specifically, the high-voltage protection module 30 can select a BDU high-voltage box, i.e., a battery disconnect unit, to which a discharge circuit can be added to realize battery pack discharge, an MSD manual maintenance switch can be set for easy inspection and maintenance, and a current sensor can be set to accurately sense the current, thereby realizing comprehensive protection and safety control of the high-voltage system.

[0061] See also Figure 4 , Figure 4 A low-voltage schematic diagram of a feasible implementation scheme provided for the first embodiment of the charging device of the present application.

[0062] In this embodiment, the control module 20 may select a battery management system, and the charging device further includes: a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller and a second EVCC controller.

[0063] It should be noted that in order to establish a connection between the socket and the distribution module 10, the first contact of the first national standard positive relay and the first contact of the first national standard negative relay are respectively connected to the first national standard socket; the first contact of the first European standard positive relay and the first contact of the first European standard negative relay are respectively connected to the first European standard socket; the first contact of the second national standard positive relay and the first contact of the second national standard negative relay are respectively connected to the second national standard socket; the first contact of the second European standard positive relay and the first contact of the second European standard negative relay are respectively connected to the second European standard socket.

[0064] It should be noted that each of the national standard sockets is connected to the control module 20 and is used to connect to the national standard charging gun; the first European standard socket and the second European standard socket are connected to the control module 20 through the first EVCC controller and the second EVCC controller respectively, and are used to connect to the European standard charging gun; each of the EVCC controllers is used to establish communication between each of the European standard sockets and the control module 20.

[0065] It is understandable that by integrating multiple socket types and corresponding controllers, compatibility with different types of charging guns can be achieved. Figure 4 As shown, during national standard charging, the battery management system receives the national standard plug-in signal CC2_1 and the charging wake-up signal A1+, the PIN5 pin of the battery management system outputs a 24V voltage to the distribution box and VCU, and the national standard charging relay is automatically energized; during European standard charging, the battery management system receives the European standard plug-in signal CC2_2 and the charging wake-up signal A2+, the PIN6 pin of the battery management system outputs a 24V voltage to the distribution box and VCU, and all European standard charging relays are automatically energized.

[0066] In addition, the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket all include NTC resistors; each of the NTC resistors is respectively connected to the control module 20; the control module 20 is also used to identify the temperature of the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket based on the resistance change of each of the NTC resistors; when the temperature exceeds the temperature threshold, the high-voltage protection module is controlled to disconnect the battery pack from the distribution module.

[0067] It should be noted that each socket is usually equipped with two NTC resistors to achieve more accurate temperature monitoring. In this implementation, since the battery management system is not sufficient to measure the temperature of the 8 NTC resistors of the 4 sockets, each socket only detects one NTC resistor, and adaptive adjustments are made to achieve temperature measurement of the 4 sockets.

[0068] In addition, new pins are added to the battery management system to output high-level control to distribute the closing and opening of the 10 national standard charging relays and European standard charging relays in the module, and independently control them to avoid interference.

[0069] In this embodiment, under the premise of four charging guns, the selection of the distribution module, control module and high-voltage protection module is given to achieve the purpose of four-gun dual-standard charging, solve the problem of limited application scenarios or long charging time of the existing charging technology, and at the same time, the safety of the entire charging device is greatly improved.

[0070] In addition, the embodiment of the present application also proposes a new energy vehicle, which uses the charging device described above. Since the new energy vehicle adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0071] In addition, the present application also proposes a control method, please refer to Figure 5 , Figure 5 A flow chart of an embodiment of a charging control method of the present application is provided. In this embodiment, the method is applied to the new energy vehicle as described above, and the method includes steps S10 to S30.

[0072] Step S10, identifying the selection signal input by the control module.

[0073] It is understandable that the selection signal may be sent by an external device (such as user operation, charging gun detection, etc.) to indicate which charging standard the next charging operation should follow.

[0074] It should be noted that in the present application, an implementation method for generating an enabling signal is given, and the step of identifying the enabling signal input by the control module also includes: identifying the standard signal of the charging gun; based on the standard signal, determining whether the national standard charging gun and the European standard charging gun are both in a connected state; when the national standard charging gun and the European standard charging gun are not both in a connected state, converting the standard signal of the charging gun into an enabling signal and outputting it to the distribution module to enter the charging process.

[0075] It should be noted that the control module detects and identifies the standard signal sent by the connected charging gun through the interface. The standard signal is used to distinguish whether it is a national standard charging gun or a European standard charging gun, or other possible charging standards.

[0076] It is understandable that, based on the recognized standard signal, the control module further determines whether both the national standard charging gun and the European standard charging gun are in the connected state. If only one type of charging gun is connected (national standard or European standard), proceed to the next step.

[0077] It can be understood that when it is determined that only one type of charging gun is connected, the control module converts the standard signal of the charging gun into a selection signal.

[0078] Furthermore, after the step of determining whether both the national standard charging gun and the European standard charging gun are in a connected state based on the standard signal, the step also includes: if both the national standard charging gun and the European standard charging gun are in a connected state, entering the charging process is not allowed.

[0079] It is understandable that if both the national standard charging gun and the European standard charging gun are in a connected state, the system will issue a warning, not allowing the charging process to begin, and may require user intervention, such as removing one of the charging guns.

[0080] Step S20, determining a corresponding charging standard according to the selection signal.

[0081] It can be understood that after receiving the selection signal from the control module, the distribution module can determine the type of the charging gun and determine the corresponding charging standard.

[0082] Step S30, based on the charging standard, the distribution module and the high-voltage protection module are controlled to be connected to charge the charging pack.

[0083] It can be understood that, based on the determined charging standard, the control distribution module and the high-voltage protection module change the on-off state of the internal components to achieve the connection of the charging circuit and thus charge the battery pack.

[0084] Generally speaking, when charging with the national standard, the battery management system interacts with the charging pile according to the national standard "GB / T27930"; when charging with the European standard, the battery management system interacts with the EVCC according to the national standard "GB / T27930"; the EVCC converts the national standard "GB / T27930" protocol into the European standard "ISO15118" to interact with the charging pile. Then, the battery management system closes the main negative relay of the battery management system and the fast charge relay of the battery management system according to the high-voltage request instruction of the VCU to complete the high-voltage charging process.

[0085] Furthermore, after the charging process begins, the control module can also continuously monitor the charging status, including current, voltage, temperature and other parameters, to determine whether the charging end conditions are met, such as full charge, reaching the time limit, or manual stop by the user. When the charging end conditions are met, the control module sends instructions to the distribution module and the high-voltage protection module to disconnect the charging connection. The charging device enters the standby state and waits for the next charging request.

[0086] In this embodiment, a charging control method for a new energy vehicle as described above is provided, so it has at least all the beneficial effects brought by the technical solutions of the above embodiments. In addition, the charging process is further clarified to facilitate charging management by the charging device.

[0087] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the charging control method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0088] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A charging device, characterized in that: The charging device comprises: a distribution module and a control module; The control module is connected to a plurality of charging guns and the distribution module respectively; The distribution module is also connected to a plurality of charging guns and battery packs respectively; The control module is used to identify the standard signal of the connected charging gun, convert the standard signal into a corresponding selection signal, and output it to the distribution module; The allocation module is used to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection circuit between the charging gun and the battery pack to realize charging of the battery pack.

2. The charging device according to claim 1, characterized in that: The charging device further includes: a high voltage protection module; The distribution module is connected to the battery pack through the high-voltage protection module; The high-voltage protection module is also connected to the control module; The allocation module is configured to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the high-voltage protection module; The control module is further used to detect the temperature of the charging device, and when the temperature exceeds a temperature threshold, output a circuit breaker signal to the high voltage protection module; The high-voltage protection module is used to disconnect the battery pack from the distribution module after receiving the disconnection signal.

3. The charging device according to claim 2, characterized in that: The charging device further comprises: a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller and a second EVCC controller; Each of the national standard sockets is connected to the control module and is used to connect a national standard charging gun; A first European standard socket and a second European standard socket are connected to the control module through a first EVCC controller and a second EVCC controller respectively, and are used to connect a European standard charging gun; Each of the EVCC controllers is used to establish communication between each of the European standard sockets and the control module.

4. The charging device according to claim 3, characterized in that: The first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket all include an NTC resistor; Each of the NTC resistors is connected to the control module respectively; The control module is also used to identify the temperatures of the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket based on the resistance changes of each of the NTC resistors; when the temperature exceeds the temperature threshold, the high-voltage protection module is controlled to disconnect the battery pack from the distribution module.

5. The charging device according to claim 3, characterized in that: The distribution module includes: a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay and a second European standard negative relay; The control end of each of the relays is connected to the control module respectively; The first contact of the first national standard positive relay and the first contact of the first national standard negative relay are respectively connected to the first national standard socket; The first contact of the first European standard positive relay and the first contact of the first European standard negative relay are respectively connected to the first European standard socket; The first contact of the second national standard positive relay and the first contact of the second national standard negative relay are respectively connected to the second national standard socket; The first contact of the second European standard positive relay and the first contact of the second European standard negative relay are respectively connected to the second European standard socket; The second contact of each of the relays is connected to the high voltage protection module respectively; The second contact of the first national standard positive relay is also connected to the second contact of the first European standard positive relay; The second contact of the second national standard positive relay is also connected to the second contact of the second European standard positive relay; The second contact of the first national standard negative relay is also connected to the second contact of the first European standard negative relay; The second contact of the second national standard negative relay is also connected to the second contact of the second European standard negative relay.

6. The charging device according to claim 5, characterized in that: The high voltage protection module comprises: a first charging positive relay, a second charging positive relay, a first charging negative relay and a second charging negative relay; The control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the control module; The first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the distribution module; The second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the battery pack.

7. A new energy vehicle, characterized in that: The new energy vehicle uses the charging device as described in any one of claims 1 to 6.

8. A charging control method, characterized in that: The method is applied to the new energy vehicle as claimed in claim 7, and the method comprises: Identify the selection signal input by the control module; Determining a corresponding charging standard according to the selection signal; Based on the charging standard, the distribution module and the high-voltage protection module are controlled to be connected to charge the charging pack.

9. The charging control method according to claim 8, characterized in that: The step of identifying the selection signal input by the control module also includes: Identify the standard signal of the charging gun; Based on the standard signal, determine whether both the national standard charging gun and the European standard charging gun are in a connected state; When both the national standard charging gun and the European standard charging gun are not in the connected state, the standard signal of the charging gun is converted into a selection signal and output to the distribution module to enter the charging process.

10. The charging control method according to claim 9, characterized in that: After the step of judging whether both the national standard charging gun and the European standard charging gun are in the connected state based on the standard signal, the step further includes: If both the national standard charging gun and the European standard charging gun are in the connected state, the charging process is not allowed.

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