A dual-gun charging device, charging system and vehicle

Abstract

This application provides a dual-gun charging device, a charging system, and a vehicle. The dual-gun charging device includes: a first auxiliary power source, a second auxiliary power source, a first controller, and a second controller. The first auxiliary power source and the second auxiliary power source have the same voltage. The input terminal of the first controller is connected to both the first auxiliary power source and the second auxiliary power source, and the output terminal of the first controller is used to connect to a first charging gun. The input terminal of the second controller is connected to both the first and second auxiliary power sources, and the output terminal of the second controller is used to connect to a second charging gun. When the output voltage of the first charging gun is a first voltage, the first controller controls the first auxiliary power source to provide charging power to the first charging gun. When the output voltage of the first charging gun is a second voltage, the first controller controls the first auxiliary power source and the second auxiliary power source to be connected in series and provide charging power to the first charging gun, wherein the first voltage is the same as the voltage of the first auxiliary power source.

Description

Technical Field

[0001] This application relates to the field of charging equipment technology, and in particular to a dual-gun charging device, charging system and vehicle. Background Technology

[0002] Currently, there are two mainstream voltage specifications for auxiliary power systems in my country's new energy vehicles: 12V is commonly used in passenger cars, while 24V is typically required for new energy commercial vehicles (such as electric buses and trucks) due to their larger electrical loads and higher power demands, ensuring stable operation of the auxiliary system. To meet the needs of these two different voltage platforms, the corresponding charging system must be able to provide auxiliary power output at the appropriate voltage level.

[0003] In traditional charging system designs, separate auxiliary power modules (such as separate switching power supplies for 12V and 24V) are typically required to accommodate both 12V and 24V voltage specifications. This approach prevents the same charging system from being used interchangeably or compatible between the two voltage platforms. To simultaneously support passenger and commercial vehicles, two sets of voltage output circuits must be integrated. The direct consequences are a significant increase in system cost, reduced auxiliary power supply utilization, and the fact that multiple power modules occupy more space and resources, leading to complex system structures, increased size, and decreased energy efficiency, which hinders product standardization and large-scale application.

[0004] In response to the shortcomings of the existing technologies, the market urgently needs an auxiliary power supply solution that can be compatible with both 12V and 24V dual voltage outputs, avoiding the cost and space burden caused by adding a separate 24V switching power supply module. Summary of the Invention

[0005] Therefore, it is necessary to provide a dual-gun charging device, a charging system, and a vehicle to address the aforementioned technical problems.

[0006] A dual-gun charging device, comprising: First auxiliary source; The second auxiliary source has the same voltage as the first auxiliary source; A first controller, the input terminals of which are connected to the first auxiliary power source and the second auxiliary power source respectively, and the output terminal of the first controller is used to connect to the first charging gun; and The second controller has its input terminals connected to the first auxiliary power source and the second auxiliary power source, respectively, and its output terminal connected to the second charging gun. When the output voltage of the first charging gun is a first voltage, the first controller controls the first auxiliary power source to provide a charging power source for the first charging gun. When the output voltage of the first charging gun is a second voltage, the first controller controls the first auxiliary power source and the second auxiliary power source to be connected in series and provide a charging power source for the first charging gun. The first voltage is the same as the voltage of the first auxiliary power source.

[0007] In one embodiment, when the output voltage of the second charging gun is a first voltage, the second controller controls the second auxiliary source to provide a charging source for the second charging gun; when the output voltage of the second charging gun is a second voltage, the second controller controls the first auxiliary source and the second auxiliary source to be connected in series and provide a charging source for the second charging gun.

[0008] In one embodiment, the first input pin of the first controller is connected to the positive terminal of the first auxiliary power source, the second input pin of the first controller is connected to the negative terminal of the first auxiliary power source, and the first output pin and the second output pin of the first controller are both connected to the first charging gun.

[0009] In one embodiment, the third input pin of the first controller is connected to the positive terminal of the first auxiliary source, the fourth input pin of the first controller is connected to the negative terminal of the second auxiliary source, and the positive terminal of the second auxiliary source is connected to the negative terminal of the first auxiliary source.

[0010] In one embodiment, the first input pin of the second controller is connected to the positive terminal of the second auxiliary power source, the second input pin of the second controller is connected to the negative terminal of the second auxiliary power source, and the first output pin and the second output pin of the second controller are both connected to the second charging gun.

[0011] In one embodiment, the third input pin of the second controller is connected to the positive terminal of the first auxiliary source, the fourth input pin of the second controller is connected to the negative terminal of the second auxiliary source, and the positive terminal of the second auxiliary source is connected to the negative terminal of the first auxiliary source.

[0012] In one embodiment, the second voltage is twice the first voltage.

[0013] In one embodiment, both the first auxiliary power source and the second auxiliary power source are 12V auxiliary power sources.

[0014] A charging system includes a dual-gun charging device as described in any of the above embodiments.

[0015] A vehicle includes a dual-gun charging device as described in any of the above embodiments.

[0016] Compared with existing technologies, the above-described dual-gun charging device, charging system, and vehicle are superior. The dual-gun charging device includes: a first auxiliary power source, a second auxiliary power source, a first controller, and a second controller. The first auxiliary power source and the second auxiliary power source have the same voltage. The input terminal of the first controller is connected to both the first and second auxiliary power sources, and the output terminal of the first controller is used to connect to the first charging gun. The input terminal of the second controller is connected to both the first and second auxiliary power sources, and the output terminal of the second controller is used to connect to the second charging gun. When the output voltage of the first charging gun is a first voltage, the first controller controls the first auxiliary power source to provide charging power to the first charging gun. When the output voltage of the first charging gun is a second voltage, the first controller controls the first and second auxiliary power sources to be connected in series and provide charging power to the first charging gun, where the first voltage is the same as the voltage of the first auxiliary power source. This application, using the above topology, can support the system output of 12V or 24V without adding a 24V power supply based on a 12V auxiliary power source, which not only has strong adaptability but also saves costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A circuit diagram of a dual-gun charging device provided in an embodiment of this application; Figure 2 A circuit block diagram of a charging system provided in an embodiment of this application; Figure 3 This is a structural block diagram of a vehicle provided in one embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 10. Dual-gun charging device; 100. First auxiliary power source; 200. Second auxiliary power source; 300. First controller; 301. First charging gun; 400. Second controller; 401. Second charging gun; 20. Charging system; 30. Vehicle. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the objects being described and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Please see Figure 1This application provides a dual-gun charging device 10 in one embodiment. This device is mainly used in new energy vehicle charging systems, and is particularly suitable for applications requiring compatibility with both 12V and 24V auxiliary power supply voltages. Without adding a separate 24V switching power supply module, this device can achieve a higher voltage (e.g., 24V) output by connecting two auxiliary sources of the same voltage specification (e.g., a 12V auxiliary source) in series, thus effectively solving the problems of high cost, large space occupation, and low resource utilization caused by voltage platform incompatibility in existing technologies.

[0026] The dual-gun charging device 10 includes: a first auxiliary power source 100, a second auxiliary power source 200, a first controller 300, and a second controller 400. The first auxiliary power source 100 and the second auxiliary power source 200 have the same voltage. The input terminal of the first controller 300 is connected to both the first auxiliary power source 100 and the second auxiliary power source 200, and the output terminal of the first controller 300 is connected to the first charging gun 301. The input terminal of the second controller 400 is connected to both the first auxiliary power source 100 and the second auxiliary power source 200, and the output terminal of the second controller 400 is connected to the second charging gun 401. When the output voltage of the first charging gun 301 is a first voltage, the first controller 300 controls the first auxiliary power source 100 to provide charging power to the first charging gun 301. When the output voltage of the first charging gun 301 is a second voltage, the first controller 300 controls the first auxiliary power source 100 and the second auxiliary power source 200 to be connected in series and provide charging power to the first charging gun 301, wherein the first voltage is the same as the voltage of the first auxiliary power source 100.

[0027] In some embodiments, the first auxiliary power source 100 and the second auxiliary power source 200 have the same voltage specifications, for example, both are 12V DC auxiliary power sources. The input terminals of the first controller 300 are connected to the first auxiliary power source 100 and the second auxiliary power source 200 respectively, and its output terminal is used to connect to the first charging gun 301; similarly, the input terminals of the second controller 400 are also connected to the first auxiliary power source 100 and the second auxiliary power source 200 respectively, and its output terminal is used to connect to the second charging gun 401. In some embodiments, both the first controller 300 and the second controller 400 employ intelligent control modules with multiple input and output pins, such as microcontrollers (MCUs) or dedicated power management chips, which integrate voltage detection, switching control, and protection circuits.

[0028] In some embodiments, the first auxiliary power source 100 and the second auxiliary power source 200 are independent DC power supply modules with the same voltage specifications, such as both outputting a stable 12V DC voltage. They are physically isolated from each other and serve as redundant backups. This design can effectively improve the reliability of the system power supply. When one auxiliary power source is interrupted due to a fault or maintenance, the other can still maintain normal operation, thereby ensuring that the charging control function is not interrupted.

[0029] In some embodiments, the input terminal of the first controller 300 is connected to the first auxiliary power source 100 and the second auxiliary power source 200 respectively via a dual-input circuit. This input circuit typically includes a reverse connection protection diode, a filter capacitor, and priority selection logic, enabling the controller to automatically select the normal auxiliary power source from the two auxiliary power sources as the operating power supply, or to balance the load when both are normal. The output terminal of the first controller 300 is connected to the first charging gun 301 via an internal drive and protection circuit, used to control charging on / off, adjust output parameters, and achieve communication and safety monitoring.

[0030] Similarly, the second controller 400 adopts an input design symmetrical to that of the first controller 300, and its input terminals are also connected to the first auxiliary power source 100 and the second auxiliary power source 200 respectively, achieving dual redundancy of power supply. Its output terminal is connected to the second charging gun 401, independently controlling the operation of the second charging circuit. The two controllers can work together in logic and communication, but maintain physical isolation in power supply and output control to avoid single-point failures affecting the overall system operation.

[0031] In some embodiments, when it is detected that the first charging gun 301 needs to output a first voltage (i.e., the same as the voltage of the first auxiliary power source 100, for example, 12V), the first controller 300 controls the internal switching circuit to allow the first auxiliary power source 100 to directly supply power to the first charging gun 301. When it is detected that the first charging gun 301 needs to output a second voltage (e.g., 24V), the first controller 300 controls the first auxiliary power source 100 and the second auxiliary power source 200 to be connected in series, and the voltages of the two are superimposed to supply power to the first charging gun 301. The first voltage is the same as the voltage of the first auxiliary power source 100, and the second voltage is preferably twice the first voltage, thereby realizing flexible support for two voltage levels by a single device.

[0032] In some embodiments, when the output voltage of the second charging gun 401 is a first voltage, the second controller 400 controls the second auxiliary power source 200 to provide a charging power source for the second charging gun 401. When the output voltage of the second charging gun 401 is a second voltage, the second controller 400 controls the first auxiliary power source 100 to be connected in series with the second auxiliary power source 200 and to provide a charging power source for the second charging gun 401.

[0033] In some embodiments, the second charging gun 401 operates in a similar manner to the first charging gun 301: when a first voltage needs to be output, the second controller 400 controls the second auxiliary power source 200 to supply power to the second charging gun 401 alone; when a second voltage needs to be output, the second controller 400 controls the first auxiliary power source 100 and the second auxiliary power source 200 to supply power to the second charging gun 401 after being connected in series.

[0034] In this embodiment, by adopting the above circuit topology, a higher voltage (e.g., 24V) output can be achieved by connecting two auxiliary sources with the same voltage specification (e.g., 12V auxiliary source) in series without adding an independent 24V switching power supply module. This not only has strong adaptability but also saves costs.

[0035] In some embodiments, a first input pin of the first controller 300 is connected to the positive terminal of the first auxiliary power source 100, a second input pin of the first controller 300 is connected to the negative terminal of the first auxiliary power source 100, and a first output pin and a second output pin of the first controller 300 are both connected to the first charging gun 301. In some embodiments, a third input pin of the first controller 300 is connected to the positive terminal of the first auxiliary power source 100, a fourth input pin of the first controller 300 is connected to the negative terminal of the second auxiliary power source 200, and the positive terminal of the second auxiliary power source 200 is connected to the negative terminal of the first auxiliary power source 100.

[0036] In some embodiments, the first controller 300 has multiple input pins and output pins. The first input pin of the first controller 300 is connected to the positive terminal of the first auxiliary power source 100, and the second input pin is connected to the negative terminal of the first auxiliary power source 100. The first output pin and the second output pin of the first controller 300 are both connected to corresponding terminals of the first charging gun 301. To achieve series boost, the third input pin of the first controller 300 is connected to the positive terminal of the first auxiliary power source 100, and the fourth input pin is connected to the negative terminal of the second auxiliary power source 200. In this case, the positive terminal of the second auxiliary power source 200 must be connected to the negative terminal of the first auxiliary power source 100, thus forming a series circuit when needed.

[0037] In some embodiments, a first input pin of the second controller 400 is connected to the positive terminal of the second auxiliary power source 200, a second input pin of the second controller 400 is connected to the negative terminal of the second auxiliary power source 200, and both a first output pin and a second output pin of the second controller 400 are connected to the second charging gun 401. In some embodiments, a third input pin of the second controller 400 is connected to the positive terminal of the first auxiliary power source 100, a fourth input pin of the second controller 400 is connected to the negative terminal of the second auxiliary power source 200, and the positive terminal of the second auxiliary power source 200 is connected to the negative terminal of the first auxiliary power source 100.

[0038] In some embodiments, the structure and connection method of the second controller 400 may be symmetrical or similar to that of the first controller 300: the first input pin of the second controller 400 is connected to the positive terminal of the second auxiliary power source 200, the second input pin of the second controller 400 is connected to the negative terminal of the second auxiliary power source 200, and the first output pin and the second output pin of the second controller 400 are both connected to the second charging gun 401; similarly, the third input pin of the second controller 400 is connected to the positive terminal of the first auxiliary power source 100, the fourth input pin is connected to the negative terminal of the second auxiliary power source 200, and the positive terminal of the second auxiliary power source 200 is connected to the negative terminal of the first auxiliary power source 100, so as to support the series power supply mode.

[0039] In some embodiments, both the first auxiliary power source 100 and the second auxiliary power source 200 are 12V auxiliary power sources, thereby outputting a 24V voltage when connected in series, meeting the requirements of commercial vehicles and other applications for higher auxiliary power supply voltages. Furthermore, both the first auxiliary power source 100 and the second auxiliary power source 200 are 150W, 12V DC auxiliary power sources.

[0040] In some embodiments, the first controller 300 and the second controller 400 may further include a voltage detection module, an overcurrent protection module, and a communication interface. The voltage detection module is used to monitor the output voltage demand of the charging gun in real time and automatically switch the power supply mode; the overcurrent protection module can disconnect the circuit when the output is short-circuited or overloaded to ensure system safety; the communication interface (such as a CAN bus) can be used to interact with the vehicle or charging pile main control system to realize remote monitoring and intelligent scheduling.

[0041] In some embodiments, the first auxiliary power source 100 and the second auxiliary power source 200 may also employ other power modules with the same voltage specifications. The functions of the first controller 300 and the second controller 400 may be integrated into a single multi-channel controller. In some embodiments, the dual-gun charging device 10 may also be equipped with status indicator lights, a heat dissipation module, and a waterproof housing to adapt to usage requirements in different environments.

[0042] Please see Figure 2 Another embodiment of this application provides a charging system 20, including the dual-gun charging device 10 described in any of the above embodiments. This system can be integrated into charging piles, on-board chargers, or other charging equipment, enabling automatic identification and output switching of 12V and 24V auxiliary power supplies on the same hardware platform, significantly reducing system complexity and manufacturing costs.

[0043] Please see Figure 3Another embodiment of this application provides a vehicle 30. The charging system 30 includes the dual-gun charging device 10 described in any of the above embodiments. The vehicle 30 can be a pure electric or hybrid commercial vehicle (such as a bus or truck), or a passenger vehicle. By equipping this dual-gun charging device, the vehicle can flexibly obtain suitable auxiliary power in different charging scenarios, improving the charging compatibility and system reliability of the entire vehicle.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A dual-gun charging device, characterized in that, include: First auxiliary source; The second auxiliary source has the same voltage as the first auxiliary source; A first controller, the input terminals of which are connected to the first auxiliary power source and the second auxiliary power source respectively, and the output terminal of the first controller is used to connect to the first charging gun; as well as The second controller has its input terminals connected to the first auxiliary power source and the second auxiliary power source, respectively, and its output terminal connected to the second charging gun. When the output voltage of the first charging gun is a first voltage, the first controller controls the first auxiliary power source to provide a charging power source for the first charging gun. When the output voltage of the first charging gun is a second voltage, the first controller controls the first auxiliary power source and the second auxiliary power source to be connected in series and provide a charging power source for the first charging gun. The first voltage is the same as the voltage of the first auxiliary power source.

2. The dual-gun charging device as described in claim 1, characterized in that, When the output voltage of the second charging gun is the first voltage, the second controller controls the second auxiliary power source to provide a charging power source for the second charging gun. When the output voltage of the second charging gun is the second voltage, the second controller controls the first auxiliary power source and the second auxiliary power source to be connected in series and provide a charging power source for the second charging gun.

3. The dual-gun charging device as described in claim 2, characterized in that, The first input pin of the first controller is connected to the positive terminal of the first auxiliary power source, the second input pin of the first controller is connected to the negative terminal of the first auxiliary power source, and the first output pin and the second output pin of the first controller are both connected to the first charging gun.

4. The dual-gun charging device as described in claim 3, characterized in that, The third input pin of the first controller is connected to the positive terminal of the first auxiliary source, the fourth input pin of the first controller is connected to the negative terminal of the second auxiliary source, and the positive terminal of the second auxiliary source is connected to the negative terminal of the first auxiliary source.

5. The dual-gun charging device as described in claim 2, characterized in that, The first input pin of the second controller is connected to the positive terminal of the second auxiliary power source, the second input pin of the second controller is connected to the negative terminal of the second auxiliary power source, and the first output pin and the second output pin of the second controller are both connected to the second charging gun.

6. The dual-gun charging device as described in claim 5, characterized in that, The third input pin of the second controller is connected to the positive terminal of the first auxiliary source, the fourth input pin of the second controller is connected to the negative terminal of the second auxiliary source, and the positive terminal of the second auxiliary source is connected to the negative terminal of the first auxiliary source.

7. The dual-gun charging device as described in any one of claims 1-6, characterized in that, The second voltage is twice the first voltage.

8. The dual-gun charging device as described in claim 7, characterized in that, Both the first auxiliary power source and the second auxiliary power source are 12V auxiliary power sources.

9. A vehicle, characterized in that, Includes the dual-gun charging device as described in any one of claims 1-8.

10. A charging system, characterized in that, Includes the dual-gun charging device as described in any one of claims 1-8.

Images