Charging conversion gun for electric automobile
By designing an electric vehicle charging converter gun, we have achieved seamless fast charging of Chinese standard new energy vehicles at European standard charging stations, solving the problem of incompatibility between Chinese standard charging ports and European standard charging stations, and improving the universality and safety of charging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
AI Technical Summary
The charging ports of Chinese standard new energy vehicles are incompatible with European standard charging piles, causing inconvenience in charging.
Design an electric vehicle charging converter gun, comprising a national standard end gun head housing and a CCS2 end gun head housing. The main control board realizes communication and charging protocol conversion between national standard CAN and European standard PLC. It has a locking mechanism and status indicator lights to ensure reliable connection and status detection.
It enables national standard new energy vehicles to be charged quickly and seamlessly at European standard charging stations, supports higher power charging, and improves versatility and charging safety.
Smart Images
Figure CN224006291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy electric vehicle technology, and in particular to an electric vehicle charging converter gun. Background Technology
[0002] With the rapid development of electric vehicle technology, the export market for new energy vehicles produced in China is expanding. However, new energy vehicles with Chinese national standard interfaces cannot be matched with European standard (CCS2) charging piles when exported to Europe, resulting in the need to select specific matching charging piles and causing inconvenience in charging. Utility Model Content
[0003] The purpose of this utility model is to provide an electric vehicle charging converter gun to solve the problems mentioned in the background art, so that the national standard new energy vehicle charging port can be adapted to the European standard charging pile, and realize fast charging without difference.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An electric vehicle charging adapter includes a main housing, one end of which is provided with a national standard end gun head housing, and the other end of which is provided with a CCS2 end gun head housing. The main housing is provided with an installation cavity, a first independent cavity located above the installation cavity, and a second independent cavity located below the installation cavity.
[0006] The mounting cavity contains a motherboard bracket, a relay is located on one side of the motherboard bracket, and a main control board is located on the other side of the motherboard bracket. The main control board is used to convert the communication and charging protocols between the national standard CAN and the European standard PLC. The main control board is electrically connected to the relay, and the relay is electrically connected to the DC positive and negative interfaces of the national standard end gun head housing and the DC positive and negative interfaces of the CCS2 end gun head housing, respectively.
[0007] The first independent cavity is equipped with a locking mechanism, which is used to lock the national standard charging port that is connected to the national standard end gun head housing and the European standard charging pile that is connected to the CCS2 charging connector respectively.
[0008] The second independent cavity contains a battery, which is powered and communicates with the main control board.
[0009] As an optional solution, the locking mechanism includes a first locking rod and a second locking rod. The first locking rod and the second locking rod are rotatably mounted on the main housing by locking screws. Each of the two locking screws is provided with a torsion spring. The first end of the first locking rod extends toward the standard end gun head housing, and the first end of the second locking rod extends toward the CCS2 end gun head housing. The first end of the first locking rod and the first end of the second locking rod are both hook parts, and the second end of the first locking rod and the second end of the second locking rod are both pressing parts.
[0010] As an optional solution, a touch switch is provided below each of the two pressing parts. The touch switch is triggered when the pressed part is pressed down. The touch switch is used to detect whether the connection between the national standard end gun head housing and the national standard charging port, and the connection between the CCS2 charging connector and the European standard charging pile are normal.
[0011] As an alternative, a status indicator light is provided in the first independent cavity and located between the first locking rod and the second locking rod. The surface of the status indicator light is provided with a light guide column. The status indicator light is used to emit light of different colors and / or different flashing frequencies according to different charging states and battery operating states.
[0012] As an alternative, one end of the second independent cavity is an open end and the other end is a closed end. A spring is provided on the closed end to contact the negative terminal of the battery. The spring is electrically connected to the main control board. A cover plate is provided on the open end. A conductive screw is provided on the cover plate to contact the positive terminal of the battery. The conductive screw is electrically connected to the main control board.
[0013] As an alternative, the cover plate is provided with a sealing ring that makes sealing contact with the second independent cavity.
[0014] As an optional solution, the motherboard bracket is fixed on the housing of the CCS2 terminal gun. Two copper busbars are set below the relay. One copper busbar has a DC negative terminal at both ends, and the other copper busbar has a DC positive terminal at both ends. The motherboard bracket provides electrical isolation between the DC negative terminal and the DC positive terminal.
[0015] As an optional solution, a discharge module is installed in the inner cavity and mounted on the housing of the CCS2 end gun. The discharge module is far away from the copper busbar. A discharge interface is provided on the main control board corresponding to the discharge module, and a rubber plug is provided on the discharge interface.
[0016] As an optional solution, the standard end gun head housing, the main housing, and the CCS2 end gun head housing are sequentially snapped together and locked with locking screws, and sealing gaskets are respectively sandwiched between the main housing and the standard end gun head housing, and between the main housing and the CCS2 end gun head housing.
[0017] As an optional solution, a temperature sensor is installed on the relay.
[0018] The beneficial effects of this utility model are:
[0019] This electric vehicle charging adapter has a national standard end gun head housing that connects to the national standard charging port and a CCS2 charging connector that connects to the European standard charging pile. The main control board in the middle converts the communication and charging protocols between the national standard CAN and the European standard PLC, enabling national standard new energy vehicles to be charged quickly and seamlessly at European standard charging piles, and supporting higher power charging technologies, thus improving versatility. Attached Figure Description
[0020] Figure 1 This is a structural outline drawing of the electric vehicle charging converter provided in this embodiment of the utility model;
[0021] Figure 2 This is an exploded view of the electric vehicle charging converter gun provided in this embodiment of the utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the mounting cavity involved in an embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram of the locking rod mechanism according to an embodiment of the present utility model;
[0024] Figure 5 This is a schematic diagram of the internal structure of the second independent cavity involved in an embodiment of the present invention.
[0025] In the attached image:
[0026] 1. Main housing; 2. Standard end nozzle housing; 3. CCS2 end nozzle housing; 4. Mounting cavity; 5. First independent cavity; 6. Second independent cavity; 7. Main board bracket; 8. Relay; 9. Main control board; 10. Battery; 11. First locking rod; 12. Second locking rod; 13. Locking screw; 14. Torsion spring; 15. Hook part; 16. Pressing part; 17. Touch switch; 18. Status indicator light; 19. Light guide column; 20. Spring; 21. Cover plate; 22. Conductive screw; 23. Sealing ring; 24. Copper busbar; 25. DC negative terminal; 26. DC positive terminal; 27. Discharge module; 28. Discharge interface; 29. Rubber plug; 30. Locking screw. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 utility model.
[0031] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.
[0032] Please see Figures 1 to 5 As shown, this embodiment provides an electric vehicle charging converter gun, including a main housing 1, a national standard end gun head housing 2 at one end of the main housing 1, a CCS2 end gun head housing 3 at the other end of the main housing 1, and an installation cavity 4, a first independent cavity 5 located above the installation cavity 4, and a second independent cavity 6 located below the installation cavity 4 in the main housing 1.
[0033] The mounting cavity 4 is equipped with a main board bracket 7. A relay 8 is installed on one side of the main board bracket 7, and a main control board 9 is installed on the other side of the main board bracket 7. The main control board 9 is used to convert the communication and charging protocols between the national standard CAN and the European standard PLC. The main control board 9 is electrically connected to the relay 8. The relay 8 is electrically connected to the DC positive and negative interfaces of the national standard end gun head housing 2 and the DC positive and negative interfaces of the CCS2 end gun head housing 3, respectively.
[0034] The first independent cavity 5 is equipped with a locking mechanism, which is used to lock the national standard charging port that is connected to the national standard end gun head housing 2 and the European standard charging pile that is connected to the CCS2 charging connector respectively.
[0035] The second independent cavity 6 is equipped with a battery 10, which is powered and communicates with the main control board 9.
[0036] Therefore, the electric vehicle charging converter gun has a national standard end gun head housing 2 that connects to the national standard charging port and a CCS2 charging connector that connects to the European standard charging pile. In the middle, the main control board 9 converts the communication and charging protocols between the national standard CAN and the European standard PLC, realizing the seamless fast charging of national standard new energy vehicles at European standard charging piles, and supporting higher power charging technology, thus improving versatility.
[0037] Optionally, see details. Figure 4 The locking mechanism includes a first locking rod 11 and a second locking rod 12. The first locking rod 11 and the second locking rod 12 are rotatably mounted on the main housing 1 by locking screws 13. A torsion spring 14 is provided on each of the two locking screws 13. The first end of the first locking rod 11 extends toward the standard end gun head housing 2, and the first end of the second locking rod 12 extends toward the CCS2 end gun head housing 3. The first end of the first locking rod 11 and the first end of the second locking rod 12 are both hook parts 15, and the second end of the first locking rod 11 and the second end of the second locking rod 12 are both pressing parts 16.
[0038] Thus, by levering the pressing part 16, the hook part 15 can be linked, and by the elastic force of the torsion spring 14, the locking rod can be reset and reliably hooked, ensuring that the operation is simple and the structure is reliable when charging and disconnecting.
[0039] Furthermore, each of the two pressing parts 16 is provided with a touch switch 17 below it. The touch switch 17 is triggered when it is pressed down by the pressing part 16. The touch switch 17 is used to detect whether the connection between the national standard end gun head housing 2 and the national standard charging port, and the connection between the CCS2 charging connector and the European standard charging pile are normal.
[0040] Specifically, the signal from the touch switch 17 is transmitted to the main control board 9, and the main control board 9 determines the connection status based on the signal. The touch switch 17 can be a normally closed switch installed on the charging line. When the touch switch 17 is pressed, the normally closed switch opens, thereby controlling the on / off of the charging line. This ensures that the charging line is immediately disconnected when the electric vehicle charging converter gun is detected to be pulled out, thus ensuring charging safety.
[0041] Optionally, a status indicator light 18 is provided in the first independent cavity 5 and between the first locking rod 11 and the second locking rod 12. A light guide column 19 is provided on the surface of the status indicator light 18. The status indicator light 18 is used to emit light of different colors and / or different flashing frequencies according to different charging states and the working state of the battery 10.
[0042] The number of status indicator lights 18 here is unlimited. One light can have multiple colors, or one light can be set to one color. Different lighting effects can convey different information.
[0043] For example, a green light represents a power indicator. A solid green light indicates that the electric vehicle charging adapter is in standby mode and the battery 10 in the electric vehicle charging adapter is fully charged. A slow flashing green light indicates that the electric vehicle charging adapter is in charging preparation mode. A fast flashing green light indicates that the electric vehicle charging adapter is charging.
[0044] For example, a blue light represents a charging indicator light. A solid blue light indicates that the battery 10 in the electric vehicle's charging converter is being charged.
[0045] For example, a red light represents a fault indicator. A flashing red light indicates that the battery 10 in the electric vehicle charging adapter is low on power and needs to be charged immediately; a solid red light indicates that the electric vehicle charging adapter has malfunctioned.
[0046] Optionally, see details. Figure 5 The second independent cavity 6 has an open end and a closed end. A spring 20 is provided on the closed end to contact the negative terminal of the battery 10. The spring 20 is electrically connected to the main control board 9. A cover plate 21 is provided on the open end. A conductive screw 22 is provided on the cover plate 21 to contact the positive terminal of the battery 10. The conductive screw 22 is electrically connected to the main control board 9.
[0047] Thus, the spring 20 and conductive screw 22 ensure stable electrical contact between the battery 10 and the main control board 9, enabling the battery 10 to supply power to the main control board 9, while the main control board 9 can also charge the battery 10, ensuring charging efficiency and safety.
[0048] Furthermore, a sealing ring 23 is provided on the cover plate 21 to seal against the second independent cavity 6.
[0049] This ensures the sealing of the second independent cavity 6, keeps the inside of the second independent cavity 6 dry, prevents short circuits, and the cover plate 21 is detachably connected to the cavity, making it easy to replace the battery 10.
[0050] Optionally, see details. Figure 3 The mainboard bracket 7 is attached to the CCS2 end gun housing 3 by fixing screws. Two copper busbars 24 are provided below the relay 8. One copper busbar 24 has a DC negative terminal 25 at both ends, and the other copper busbar 24 has a DC positive terminal 26 at both ends. The mainboard bracket 7 provides electrical isolation between the DC negative terminal 25 and the DC positive terminal 26.
[0051] Therefore, the main board bracket 7 not only ensures the reliable installation of the main control board 9, relay 8 and copper busbar 24, but also provides electrical isolation between the main control board 9 and relay 8 and between the DC negative terminal 25 and DC positive terminal 26, ensuring stable current transmission, preventing short circuit risks, and improving the reliability and safety of the charging process.
[0052] Optionally, a discharge module 27 is installed in the inner cavity 4 and mounted on the housing 3 of the CCS2 end gun, away from the copper busbar 24. A discharge interface 28 is provided on the main control board 9 corresponding to the discharge module 27, and a rubber plug 29 is provided on the discharge interface 28.
[0053] The discharge interface 28 here is exemplified by the TYPE C type. The TYPE C interface has bidirectional transmission function, which can support fast discharge and charging at the same time, ensuring efficient conversion of electrical energy. Thus, the discharge interface 28 can discharge externally to meet the power supply needs of some devices, and can also charge the internal battery 10. In addition, the discharge module 27 is preferably located on the upper right side of the main housing 1, away from the high-voltage area of the bottom circuit, and the dustproof and waterproof performance of the discharge interface 28 is improved by the rubber plug 29.
[0054] Optionally, the standard end gun head housing 2, the main housing 1, and the CCS2 end gun head housing 3 are sequentially snapped together and locked by locking screws 30, and sealing gaskets are respectively sandwiched between the main housing 1 and the standard end gun head housing 2, and between the main housing 1 and the CCS2 end gun head housing 3.
[0055] This ensures the integrity and sealing of the electric vehicle charging converter, meeting dustproof and waterproof requirements.
[0056] Optionally, a temperature sensor is provided on relay 8.
[0057] Therefore, by using a temperature sensor to monitor the charging temperature in real time, the system automatically cuts off power when an abnormal temperature is detected, ensuring charging safety.
[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An electric vehicle charging conversion gun, characterized by, The utility model relates to a double standard charging gun, including main casing (1), one end of main casing (1) is provided with national standard end gun head casing (2), the other end of main casing (1) is provided with CCS2 end gun head casing (3), be provided with installation inner chamber (4) in main casing (1), the first independent chamber (5) of being located the upper of installation inner chamber (4) and the second independent chamber (6) of being located the lower of installation inner chamber (4), The installation inner chamber (4) is provided with a mainboard support (7), one side of the mainboard support (7) is provided with a relay (8), the other side of the mainboard support (7) is provided with a main control board (9), the main control board (9) is used for converting the communication between national standard CAN and European standard PLC and charging protocol, the main control board (9) is electrically connected with the relay (8), the relay (8) is electrically connected with the DC positive and negative pole interface of the national standard end gun head casing (2) and the DC positive and negative pole interface of the CCS2 end gun head casing (3) respectively, The first independent chamber (5) is provided with a lock rod mechanism, the lock rod mechanism is used for locking the national standard charging port and the European standard charging pile respectively which are connected with the national standard end gun head casing (2) and the CCS2 charging connector, The second independent chamber (6) is provided with a battery (10), the battery (10) is powered and communicated with the main control board (9).
2. The electric vehicle charging conversion gun of claim 1, wherein, The lock rod mechanism includes a first lock rod (11) and a second lock rod (12), the first lock rod (11) and the second lock rod (12) are rotatably installed on the main casing (1) through a pair of lock screws (13) respectively, two pairs of lock screws (13) are provided with torsional springs (14) respectively, the first end of the first lock rod (11) extends to the national standard end gun head casing (2), the first end of the second lock rod (12) extends to the CCS2 end gun head casing (3), the first end of the first lock rod (11) and the first end of the second lock rod (12) are hooking parts (15), the second end of the first lock rod (11) and the second end of the second lock rod (12) are pressing parts (16).
3. The electric vehicle charging conversion gun of claim 2, wherein, The lower part of the two pressing parts (16) is provided with a touch switch (17), the touch switch (17) is triggered when being pressed by the pressing part (16), the touch switch (17) is used for detecting whether the connection between the national standard end gun head casing (2) and the national standard charging port and the connection between the CCS2 charging connector and the European standard charging pile are normal.
4. The electric vehicle charging conversion gun of claim 2, wherein, The first independent chamber (5) is provided with a state display lamp (18) between the first lock rod (11) and the second lock rod (12), the surface of the state display lamp (18) is provided with a light guide column (19), the state display lamp (18) is used for emitting light with different colors and / or different flashing frequencies according to different charging states and the working state of the battery (10).
5. The electric vehicle charging conversion gun of claim 1, wherein, One end of the second independent cavity (6) is an open end, the other end is a closed end, and a spring (20) in contact with the negative electrode of the battery (10) is arranged on the closed end, the spring (20) is electrically connected with the main control board (9), and a cover plate (21) is arranged on the open end, the cover plate (21) is provided with a conductive screw (22) in contact with the positive electrode of the battery (10), and the conductive screw (22) is electrically connected with the main control board (9).
6. The electric vehicle charging conversion gun of claim 5, wherein, The cover plate (21) is provided with a sealing ring (23) in sealing contact with the second independent cavity (6).
7. The electric vehicle charging conversion gun of claim 1, wherein, The main board support (7) is fixed on the CCS2 end gun head shell (3), and two copper bars (24) are arranged below the relay (8), two ends of one of the copper bars (24) are respectively provided with DC negative terminals (25), and two ends of the other copper bar (24) are respectively provided with DC positive terminals (26), and the main board support (7) forms electrical isolation with the DC negative terminals (25) and the DC positive terminals (26).
8. The electric vehicle charging conversion gun of claim 7, wherein, The mounting inner cavity (4) is provided with a discharge module (27) mounted on the CCS2 end gun head shell (3), the discharge module (27) is away from the copper bar (24), and the main control board (9) is provided with a discharge interface (28) corresponding to the discharge module (27), and the discharge interface (28) is provided with a rubber plug (29).
9. The electric vehicle charging conversion gun of claim 1, wherein, The national standard end gun head shell (2), the main shell (1) and the CCS2 end gun head shell (3) are sequentially buckled and connected and locked by a locking screw (30), and sealing pads are respectively arranged between the main shell (1) and the national standard end gun head shell (2) and between the main shell (1) and the CCS2 end gun head shell (3).
10. The electric vehicle charging conversion gun of claim 1, wherein, The relay (8) is provided with a temperature sensor.