Direct current fast charging adapter

Abstract

The utility model relates to the field of adapter, direct current fast charging adapter, including adapter shell, the both ends of adapter shell are provided with gun head terminal and gun seat terminal, be provided with first linkage hook and second linkage hook in the adapter shell, the surface of adapter shell is provided with the handle convenient to grasp, first linkage hook and second linkage hook are connected with adapter shell through pivot and elastic member respectively, first linkage hook and second linkage hook can overturn relative to adapter shell, the one end of first linkage hook and second linkage hook away from each other all is provided with positioning buckle, the one end close to second linkage hook of first linkage hook is provided with press protruding piece, the one end close to first linkage hook of second linkage hook is provided with linkage pressure plate, through adding handle structure on the surface of adapter shell, the holding comfort degree is improved obviously, is convenient for single -handed operation and carries, only needs to press single point to synchronous control the overturning action of both sides hook.

Description

Technical Field

[0001] This utility model relates to the field of adapters, and in particular to DC fast charging adapters. Background Technology

[0002] DC fast charging adapters are key components in electric vehicle charging systems, primarily used to adapt to different specifications of charging guns and charging pile interfaces, enabling efficient and safe power transmission. With the increasing popularity of new energy vehicles, charging equipment needs to meet requirements such as quick plugging / unplugging, high reliability, and portability. Adapters must operate stably under high voltage and high current environments, while also providing a good user experience to adapt to frequent use in complex scenarios such as outdoor locations and public charging stations.

[0003] Existing DC fast charging adapters typically include a housing 1, built-in adapter components 2, a charging head terminal 3, and a charging base terminal 4. Two independent positioning hooks 5 are located inside the housing 1, extending to the outside of the charging head terminal 3 and the charging base terminal 4 respectively, for securing the charging gun interface. Each hook has an independent unlocking button 6, which is pressed to control the unlocking action of the hook.

[0004] Existing adapters suffer from cumbersome operation and inconvenience in practical applications. The two positioning hooks need to be controlled by separate unlocking buttons. When plugging or unplugging, both buttons must be pressed simultaneously to release the hooks. Users need to apply force with both hands to press both buttons at the same time. If operated with one hand, it is impossible to unlock and quick plugging or unplugging is not possible. The surface of the adapter housing is mostly a smooth flat surface or a simple texture design. When plugging or unplugging, both hands need to be gripped to fix the adapter housing. In wet and slippery environments such as rain, snow, and oil, the surface friction is greatly reduced, making it easy to slip out of the hand when plugging or unplugging. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a DC fast charging adapter, which can effectively solve the technical problems of cumbersome operation and easy slippage during plugging and unplugging.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A DC fast charging adapter includes an adapter housing with a gun head terminal and a gun base terminal at both ends. The adapter housing has a receiving cavity containing an adapter electrical component. The gun head terminal and the gun base terminal are electrically connected through the adapter electrical component. The adapter housing also includes a first linkage hook and a second linkage hook. The surface of the adapter housing has a handle for easy gripping. The first and second linkage hooks are connected to the adapter housing via a rotating shaft and an elastic element, respectively. The first and second linkage hooks are rotatable relative to the adapter housing. Positioning latches are provided at the ends of the first and second linkage hooks that are furthest from each other, extending around the gun head terminal and the gun base terminal, respectively. A pressing protrusion is provided at the end of the first linkage hook near the second linkage hook, extending to the surface of the adapter housing. A linkage pressure plate is provided at the end of the second linkage hook near the first linkage hook. When the pressing protrusion is pressed down, the first linkage hook flips, simultaneously pushing the linkage pressure plate to flip the second linkage hook.

[0008] Furthermore, a protective sleeve is provided on the surface of the gun base terminal, and a positioning slot is provided on the surface of the protective sleeve, through which the positioning buckle of the second linkage hook passes.

[0009] Furthermore, the protective cover is provided at the opening of the protective cover to cover the protective cover, and a rotating seat is provided on the side wall of the protective cover, with the edge of the protective cover rotatably connected to the rotating seat.

[0010] Furthermore, a sealing plug is provided on the inner side of the protective cover, and the sealing plug can be inserted into the interface of the gun base terminal.

[0011] Furthermore, a micro switch is provided inside the adapter housing, and the micro switch corresponds to the pressing protrusion.

[0012] Furthermore, a partition is provided inside the adapter housing, which separates the receiving cavity into an electrical control chamber and a snap-fit ​​chamber. The first linkage hook and the second linkage hook are located in the snap-fit ​​chamber, and the adapter electrical components are located in the electrical control chamber.

[0013] Compared with existing technologies, the advantages of this invention are: by adding a handle structure to the surface of the adapter housing, the grip comfort is significantly improved, facilitating one-handed operation and carrying. The first and second linkage hooks are mechanically linked through a pressing protrusion and a linkage pressure plate, requiring only a single point to simultaneously control the flipping action of the hooks on both sides. Compared with traditional independently operated hooks, this design reduces the insertion and removal steps by half, significantly improving efficiency and enabling quick insertion and removal with one hand. The elastic element of the hook cooperates with the rotating shaft to provide a stable restoring force, ensuring that the positioning buckle is tightly engaged with the gun head terminal and gun base terminal in the locked state, effectively resisting vibration or external pulling force and ensuring connection reliability. Attached Figure Description

[0014] Fig. 1 A three-dimensional schematic diagram of the background technology;

[0015] Fig. 2 This is a schematic diagram of the structure of this utility model;

[0016] Figs. 1-2 The labels in the diagram are: 1-housing, 2-adapter electrical components, 3-gun head terminal, 4-gun base terminal, 5-positioning hook, 6-unlock button.

[0017] Fig. 3 This is the front view of the present invention;

[0018] Fig. 4 This is a schematic diagram of the structure of this utility model;

[0019] Fig. 5 This is a three-dimensional structural diagram of the present invention;

[0020] Figs. 3-5 The labels in the diagram are as follows: 1-Adapter housing, 2-Gun head terminal, 3-Gun base terminal, 4-First linkage hook, 5-Second linkage hook, 6-Positioning buckle, 7-Pressing protrusion, 8-Linkage pressure plate, 9-Rotating shaft, 10-Handle, 11-Protective cover, 12-Positioning bayonet, 13-Protective cover, 14-Rotating seat, 15-Partition, 16-Micro switch, 17-Electrical control chamber, 18-Snap-fit ​​chamber, 19-Relay, 20-Battery, 21-Main control circuit board, 22-Negative copper busbar, 23-Positive copper busbar, 24-Data interface, 25-Start switch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is combined with Figs. 3-5 The DC fast charging adapter of this utility model is described in detail below:

[0023] A DC fast charging adapter includes an adapter housing 1, with a gun head terminal 2 and a gun base terminal 3 at both ends. The adapter housing 1 has a receiving cavity containing an adapter electrical component. The gun head terminal 2 and the gun base terminal 3 are electrically connected through the adapter electrical component. The adapter housing 1 also has a first linkage hook 4 and a second linkage hook 5. The surface of the adapter housing 1 has a handle 10 for easy gripping. The first linkage hook 4 and the second linkage hook 5 are connected to the adapter housing 1 via a rotating shaft 9 and an elastic element, respectively. The first linkage hook 4 and the second linkage hook 5 can... The adapter housing 1 is flipped over. The first linkage hook 4 and the second linkage hook 5 are both provided with positioning buckles 6 at their far ends. The two positioning buckles 6 extend to the periphery of the gun head terminal 2 and the gun base terminal 3, respectively. The first linkage hook 4 is provided with a pressing protrusion 7 at the end near the second linkage hook 5. The pressing protrusion 7 extends to the surface of the adapter housing 1. The second linkage hook 5 is provided with a linkage pressure plate 8 at the end near the first linkage hook 4. When the pressing protrusion 7 is pressed down, the first linkage hook 4 flips over. At the same time, the first linkage hook 4 pushes the linkage pressure plate 8 to flip the second linkage hook 5.

[0024] By adding a handle 10 to the surface of the adapter housing 1, the grip comfort is significantly improved, facilitating one-handed operation and carrying. The first linkage hook 4 and the second linkage hook 5 are mechanically linked by the pressing protrusion 7 and the linkage pressure plate 8, allowing simultaneous control of the flipping action of the hooks on both sides with just a single point press. Compared to traditional independently operated hooks, this design reduces the insertion and removal steps by half, significantly improving efficiency and enabling quick insertion and removal with one hand. The elastic element of the hook cooperates with the rotating shaft 9 to provide a stable restoring force, ensuring that the positioning buckle 6 is tightly engaged with the gun head terminal 2 and the gun base terminal 3 in the locked state, effectively resisting vibration or external pulling force and ensuring connection reliability. The anti-slip texture design of the handle 10 prevents slippage during operation, and the handle 10 is integrally molded with the housing, eliminating the need for additional assembly parts, simplifying the production process, and reducing manufacturing costs.

[0025] The surface of the gun holder terminal 3 is provided with a protective sleeve 11, and the surface of the protective sleeve 11 is provided with a positioning slot 12. The positioning buckle 6 of the second linkage hook 5 passes through the positioning slot 12 to ensure that the hook accurately locks the charging gun interface and avoids poor contact caused by dust and moisture intrusion. The protective sleeve 11 can also buffer the mechanical impact during insertion and removal, and extend the service life of the terminal.

[0026] The protective cover 13 is provided at the opening of the protective cover 11 to cover the protective cover 11. A rotating seat 14 is provided on the side wall of the protective cover 11. The edge of the protective cover 13 is rotatably connected to the rotating seat 14. A sealing plug is provided on the inner side of the protective cover 13. The sealing plug can be inserted into the DC+ and DC- interfaces in the gun base terminal 3. The protective cover 13 is hinged to the protective cover 11 through the rotating seat 14, which can be quickly closed or opened to prevent the gun base terminal 3 from being exposed to the outdoor environment. When the inner sealing plug is inserted into the interface, a double seal is formed, achieving an IP67 protection level, effectively resisting rain and sand erosion, and is especially suitable for outdoor charging stations or humid conditions.

[0027] The adapter housing 1 is equipped with a micro switch 16, which corresponds to the pressing protrusion 7. The micro switch 16 and the pressing protrusion 7 are designed to work together. When the pressing protrusion 7 is pressed down, the micro switch 16 is pressed down, and the micro switch 16 automatically cuts off the internal circuit to avoid the risk of electric arc caused by hot plugging and unplugging.

[0028] The adapter housing 1 is equipped with a partition 15, which separates the receiving cavity into an electrical control chamber 17 and a snap-fit ​​chamber 18. The first linkage hook 4 and the second linkage hook 5 are located in the snap-fit ​​chamber 18, while the adapter electrical components are located in the electrical control chamber 17. The partition 15 physically isolates the electrical components from the mechanical linkage mechanism, preventing mechanical interference with circuit stability. This partitioned design also facilitates fault diagnosis and maintenance, allowing for targeted repairs without disassembling the entire structure.

[0029] The adapter includes a battery 20, a main control circuit board 21, a relay 19, a positive copper busbar 23, and a negative copper busbar 22. The positive and negative copper busbars 23 and 22 are connected to the relay 19. The ends of the positive and negative copper busbars 23 and 22 away from the relay 19 are connected to the gun head terminal 2 and the gun base terminal 3, respectively. The battery 20 and the relay 19 are electrically connected to the main control circuit board 21, which is responsible for protocol communication matching and adjustment. The main control circuit board 21 is also electrically connected to a start switch 25 and a data interface 24. The start switch 25 is connected to a status indicator light, and the circuit on / off status can be fed back through the indicator light to ensure visual management of user operation. The data interface 24 can be connected to an external tester or flash drive for program upgrades and fault analysis.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A DC fast charging adapter, comprising an adapter housing, wherein the adapter housing has a gun head terminal and a gun base terminal at both ends, a receiving cavity is provided inside the adapter housing, and an adapter electrical component is provided inside the receiving cavity; the gun head terminal and the gun base terminal are electrically connected through the adapter electrical component; and a first linkage hook and a second linkage hook are provided inside the adapter housing, characterized in that: The surface of the adapter housing is provided with a handle for easy gripping. The first linkage hook and the second linkage hook are connected to the adapter housing through a rotating shaft and an elastic element, respectively. The first linkage hook and the second linkage hook can be flipped relative to the adapter housing. The ends of the first linkage hook and the second linkage hook that are far apart from each other are provided with positioning buckles. The two positioning buckles extend to the periphery of the gun head terminal and the gun base terminal, respectively. The end of the first linkage hook near the second linkage hook is provided with a pressing protrusion that extends to the surface of the adapter housing. The end of the second linkage hook near the first linkage hook is provided with a linkage pressure plate. When the pressing protrusion is pressed down, the first linkage hook flips, and at the same time, the first linkage hook pushes the linkage pressure plate to flip the second linkage hook.

2. The DC fast charging adapter according to claim 1, characterized in that: The surface of the gun base terminal is provided with a protective sleeve, and the surface of the protective sleeve is provided with a positioning slot, through which the positioning buckle of the second linkage hook passes.

3. The DC fast charging adapter according to claim 2, characterized in that: The protective cover is provided at the opening of the protective cover to cover the protective cover, and a rotating seat is provided on the side wall of the protective cover. The edge of the protective cover is rotatably connected to the rotating seat.

4. The DC fast charging adapter according to claim 3, characterized in that: The inner side of the protective cover is provided with a sealing plug, which can be inserted into the interface of the gun base terminal.

5. The DC fast charging adapter according to any one of claims 1-4, characterized in that: The adapter housing is equipped with a micro switch, which corresponds to the pressing protrusion.

6. The DC fast charging adapter according to any one of claims 1-4, characterized in that: The adapter housing is provided with a partition, which separates the receiving cavity into an electrical control chamber and a snap-fit ​​chamber. The first linkage hook and the second linkage hook are located in the snap-fit ​​chamber, and the adapter electrical components are located in the electrical control chamber.

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