Dustproof device for power interface of new energy vehicles

Abstract

This invention relates to the field of charging socket technology, specifically disclosing a dustproof device for a power interface of a new energy vehicle, comprising: a socket base, an end cover, and a hook. The end cover is rotatably mounted on the socket base via a first hinge shaft. The hook is located on the side of the socket base away from the first hinge shaft and is used to engage with the end cover after it is closed. A waterproof cover is provided on the end cover, which is rotatably mounted on the end cover via a second hinge shaft. When the end cover is opened and away from the socket base, the waterproof cover can cover the side of the end cover facing the inside of the socket. When the end cover is closed and covers the socket base, the waterproof cover flips to the side of the end cover facing away from the inside of the socket. The beneficial effect of this invention is to prevent rainwater adhering to the inside of the end cover from entering the socket along with the end cover.

Description

Technical Field

[0001] This invention relates to the field of charging socket technology, and more specifically to a dustproof device for the power interface of new energy vehicles. Background Technology

[0002] As a connecting component between the vehicle and external power supply equipment, the charging interface of new energy vehicles plays an important role in the charging process. However, the dustproof end caps on existing charging interfaces are prone to rainwater entering the socket in rainy weather, which affects the stability and safety of the charging interface. Therefore, it is necessary to improve the end caps with a rainproof structure to prevent rainwater on the surface of the end caps from entering the socket during the closing process.

[0003] Existing technologies, such as Chinese authorized patent CN211710636U, disclose a waterproof and dustproof cover for an electric vehicle charging port. It mainly achieves dustproof and waterproof protection for the charging port by setting a waterproof cover body and a sealing structure. It has the advantage of being able to shield and protect the charging interface. However, it still adopts a conventional flip-top structure. When the end cover is open, the side of the end cover facing the inside of the socket is still exposed to the external environment. When rainwater adheres to the inside of the end cover, it is still easy for the rainwater adhering to the inside of the end cover to be brought into the socket when the end cover is closed again.

[0004] The existing solution has the following drawbacks: First, when the existing end cover is opened, the side facing the inside of the socket is directly exposed to rainwater, and rainwater easily forms a water film on the surface of the end cover; Second, during the process of closing the end cover, the rainwater attached to the inside of the end cover will enter the socket along with the end cover, resulting in the socket becoming damp; Third, the existing structure usually only relies on sealing rings or water-blocking structures for passive waterproofing, and cannot actively isolate the rainwater inside the end cover. Summary of the Invention

[0005] This invention provides a dustproof device for the power interface of new energy vehicles, which aims to solve the technical problem in related technologies that rainwater easily forms a water film on the surface of the end cover, and when the end cover is closed again, the rainwater attached to the inside of the end cover will enter the socket along with the end cover.

[0006] A dustproof device for a power interface of a new energy vehicle includes a socket base, an end cover, and a hook. The end cover is rotatably mounted on the socket base via a first hinge shaft. The hook is located on the side of the socket base away from the first hinge shaft and is used to engage with the end cover when it is closed. A waterproof cover is provided on the end cover, which is rotatably mounted on the end cover via a second hinge shaft. When the end cover is open and away from the socket base, the waterproof cover covers the side of the end cover facing the inside of the socket. When the end cover is closed and covers the socket base, the waterproof cover flips to the side of the end cover facing away from the inside of the socket. By providing a flip-up waterproof cover on the end cover, the side of the end cover facing the inside of the socket when open can be blocked by the waterproof cover, thereby preventing rainwater from adhering to the side of the end cover facing the inside of the socket and thus preventing rainwater from entering the socket when the end cover is closed.

[0007] Preferably, a linkage transmission mechanism is provided between the first hinge shaft and the second hinge shaft. The linkage transmission mechanism is used to drive the waterproof cover to flip relative to the end cover during the end cover flipping process. The linkage transmission mechanism enables the waterproof cover to automatically switch positions as the end cover flips, without the need for manual operation by the user, thereby improving the convenience of use.

[0008] Preferably, the linkage transmission mechanism includes an end face gear disposed on a first hinge shaft and a gear disposed on a second hinge shaft. The gear meshes with the end face gear for transmission. Through the meshing and cooperation between the end face gear and the gear, the waterproof cover can be stably driven to flip, thereby improving the structural transmission stability.

[0009] Preferably, the end face gear has teeth only in a local area and no teeth in the rest of the area, so that the gear is in an idle state in the initial stage of end cover flipping. By setting an idle area, the waterproof cover can be prevented from flipping immediately in the initial stage of end cover flipping, thereby avoiding interference between the waterproof cover and the socket base.

[0010] Preferably, when the end cover is flipped to a preset angle, the gear and the teeth on the end face gear begin to mesh, and as the end cover continues to flip, it drives the waterproof cover to deflect toward the side of the end cover facing the inside of the socket. By delaying the meshing, the waterproof cover can be flipped after the end cover has been flipped to a suitable position, thereby improving the overall structural stability.

[0011] Preferably, a first torsion spring is provided at the first hinge shaft. The two ends of the first torsion spring are respectively connected to the end cover and the socket base, and are used to drive the end cover to flip in the opening direction. The first torsion spring can provide an automatic opening force for the end cover, thereby improving the convenience of opening the end cover.

[0012] Preferably, a second torsion spring is provided at the second hinge shaft. The second torsion spring is used to drive the waterproof cover to deflect away from the end cover towards the inside of the socket. The restoring torque provided by the second torsion spring is less than the restoring torque provided by the first torsion spring. The second torsion spring can continue to control the deflection direction of the waterproof cover after the waterproof cover loses its linkage constraint, thereby preventing the waterproof cover from swinging freely. By limiting the torque relationship between the first torsion spring and the second torsion spring, the normal flipping of the end cover can be ensured, while preventing the second torsion spring from affecting the overall movement of the end cover.

[0013] Preferably, when the gear disengages from the teeth on the end face gear and enters the idle running state, the second torsion spring drives the waterproof cover to deflect towards the side of the end cover away from the inside of the socket, so as to prevent the waterproof cover from getting stuck between the end cover and the socket base. By controlling the attitude of the waterproof cover through the second torsion spring, it is possible to prevent the waterproof cover from drooping and getting stuck during the idle running stage.

[0014] Preferably, when the waterproof cover covers the side of the end cover facing the inside of the socket, it is fitted to the surface of the end cover to prevent rainwater from adhering to the side of the end cover facing the inside of the socket. The fitted arrangement can improve the shielding effect on the surface of the end cover, thereby further improving the rainproof performance.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0016] 1. By setting a flip-up waterproof cover on the end cap, the side of the end cap facing the inside of the socket can be blocked when the end cap is opened, thereby preventing rainwater from adhering to the side of the end cap facing the inside of the socket, and thus preventing rainwater from entering the socket when the end cap is closed.

[0017] 2. By setting up a linkage transmission mechanism, the waterproof cover can automatically switch positions as the end cover flips, without requiring additional operation from the user, thus improving ease of use;

[0018] 3. By setting local teeth and free-running areas, the waterproof cover can be delayed in flipping, thereby avoiding structural interference in the initial stage of end cover flipping and improving the stability of the mechanism's movement.

[0019] 4. By setting the first torsion spring and the second torsion spring, the end cap drive and the waterproof cover attitude control can be realized respectively, thereby avoiding the waterproof cover from drooping freely and getting stuck during the idle run phase.

[0020] 5. By setting up a fitted waterproof cover structure, the rainproof and shielding effect on the working surface of the end cover can be improved, thereby further improving the waterproof safety of the power interface of new energy vehicles. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2This is a schematic diagram showing the waterproof cap of the present invention covering the end cap.

[0023] Figure 3 This is a schematic diagram showing the end cap of the present invention covering the socket base.

[0024] Figure 4 for Figure 3 The front view.

[0025] Figure 5 This is a schematic diagram of the structure of the waterproof cover of the present invention.

[0026] Figure label:

[0027] 1. Socket base; 2. End cap; 3. Hook; 4. Waterproof cover; 5. Second torsion spring; 6. End face gear; 7. Gear; 8. First hinge shaft; 9. Second hinge shaft. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1-5 As shown in the figure, an embodiment of the present invention provides a dustproof device for a power interface of a new energy vehicle, comprising a socket base 1, an end cover 2, a hook 3, a waterproof cover 4, a linkage transmission mechanism, a first torsion spring (not shown in the figure), and a second torsion spring 5. During use, the end cover 2 can be flipped relative to the socket base 1 via a first hinge shaft 8. When the end cover 2 is closed, it covers the socket base 1 to shield the socket. The hook 3 engages with the end cover 2 to prevent it from opening automatically. When the user needs to charge, the user releases the hook 3 from the end cover 2, and the end cover 2 flips in the opening direction under the action of the first torsion spring. During the flipping of the end cover 2, the waterproof cover 4 can gradually flip to the side of the end cover 2 facing the inside of the socket under the drive of the linkage transmission mechanism to shield the side of the end cover 2 facing the inside of the socket. When charging is completed, the end cover 2 flips back towards the socket base 1, and the waterproof cover 4 gradually flips to the side of the end cover 2 away from the inside of the socket as the end cover 2 flips, so that the end cover 2 covers the socket base 1 again to complete the sealing of the socket.

[0030] The socket base 1 includes a mounting base, a socket mounting cavity, a first hinge part, and a hook 3 mounting part. The mounting base is configured as a plate structure and can be fixedly installed on the outer shell of a new energy vehicle. The socket mounting cavity is located in the middle of the mounting base and is used to install the charging socket assembly. The first hinge part is located on one side edge of the mounting base and has a mounting hole for installing a first hinge shaft 8. The first hinge shaft 8 passes through the mounting hole and is rotatably connected to the end cover 2, allowing the end cover 2 to rotate around the first hinge shaft 8. The hook 3 mounting part is located on the side of the mounting base away from the first hinge part and has a hook 3. The hook 3 can engage with the outer edge of the end cover 2 after the end cover 2 is closed, thereby preventing the end cover 2 from detaching from the socket base 1. The socket base 1 provides a mounting base for the end cover 2, the waterproof cover 4, and the linkage transmission mechanism, and also supports the charging socket. After the end cover 2 is closed, a closed space is formed between the socket base 1 and the end cover 2 to cover the charging interface.

[0031] End cap 2 includes a cover body, a first connecting side, a second connecting side, a first hinge hole, and a second hinge hole. The cover body is generally configured as an arc-shaped plate structure. The inner surface of the cover body faces the inside of the socket when closed, and the outer surface of the cover body faces the external environment when closed. The first connecting side is located on the edge of the cover body near the first hinge shaft 8. The first connecting side has a first hinge hole, and the first hinge shaft 8 passes through the first hinge hole and is rotatably connected to the socket base 1, allowing the end cap 2 to rotate around the first hinge shaft 8. The second connecting side is located on the edge of the cover body near the first connecting side. At adjacent edge positions, a second hinge hole is provided on the second connecting side. The second hinge shaft 9 passes through the second hinge hole and is rotatably connected to the waterproof cover 4, so that the waterproof cover 4 can be flipped relative to the end cover 2. A snap-fit ​​edge is provided on the edge of the cover body near the hook 3. The snap-fit ​​edge can cooperate with the hook 3 after the end cover 2 is closed to limit the end cover 2. The end cover 2 is used to cover the socket base 1 in the closed state to block the charging interface. At the same time, the end cover 2 is also used to provide an installation position for the waterproof cover 4 and to block the inner side of the cover through the waterproof cover 4 in the open state.

[0032] The hook 3 includes a latching part, an elastic part, and a fixing part. The fixing part is fixedly mounted on the hook 3 mounting part. The elastic part is connected between the fixing part and the latching part. The latching part extends toward the end cover 2. When the end cover 2 is closed, the latching edge can push the latching part to undergo elastic deformation. After the end cover 2 is completely closed, the latching part resets and latches onto the outside of the latching edge, thereby preventing the end cover 2 from automatically opening under the action of the first torsion spring. When the user needs to open the end cover 2, the user can push the latching part away from the latching edge to release the restriction on the end cover 2. The hook 3 is used to maintain the stability of the end cover 2 in the closed state and to counteract the opening force generated by the first torsion spring on the end cover 2, thereby preventing the end cover 2 from opening by itself during vehicle operation.

[0033] The waterproof cover 4 includes a baffle plate, a second connecting part, and a mating surface. The overall size of the baffle plate is adapted to the size of the inner side of the end cover 2. The second connecting part is located at one edge of the baffle plate and is rotatably connected to the second connecting side via a second hinge shaft 9, so that the waterproof cover 4 can be flipped relative to the end cover 2 around the second hinge shaft 9. The mating surface is located on the side of the baffle plate facing the end cover 2. When the waterproof cover 4 is flipped to the inner side of the end cover 2, the mating surface can fit against the inner side of the end cover 2. The waterproof cover 4 is used to cover the inner side of the end cover 2 after the end cover 2 is opened, so as to shield the inner side of the end cover 2 and reduce the situation where rainwater directly adheres to the inner side of the end cover 2. When the end cover 2 is closed, the waterproof cover 4 can be flipped to the outer side of the end cover 2, so as to avoid affecting the normal fit between the end cover 2 and the socket base 1.

[0034] The linkage transmission mechanism includes an end face gear 6 and a gear 7. The end face gear 6 is coaxially mounted at one end of the first hinge shaft 8. The end face gear 6 has a disc-shaped structure and teeth only in a local area, while the rest of the area is toothless. The gear 7 is coaxially mounted at one end of the second hinge shaft 9. The gear 7 is correspondingly mounted to the end face gear 6. The gear 7 can mesh with the teeth on the end face gear 6 during the flipping of the end cover 2, thereby ensuring that the rotation of the first hinge shaft 8 can drive the end face gear 6 to rotate synchronously, and at the same time, ensuring that the rotation of the second hinge shaft 9 can drive the waterproof cover 4 to rotate synchronously. The linkage transmission mechanism is used to drive the waterproof cover 4 to flip during the flipping of the end cover 2, thereby realizing the linkage action between the waterproof cover 4 and the end cover 2.

[0035] The teeth on the end face gear 6 only cover a portion of the circumferential area. When the end cover 2 is closed or just beginning to open, the gear 7 is located in the toothless area of ​​the end face gear 6. At this time, the gear 7 is in an idle state, and the waterproof cover 4 will not immediately flip. As the end cover 2 continues to flip, the gear 7 gradually moves to the toothed area of ​​the end face gear 6. When the gear 7 contacts the teeth, the gear 7 begins to roll on the end face gear 6, thereby driving the second hinge shaft 9 to rotate and further driving the waterproof cover 4 to flip towards the inner side of the end cover 2. By setting an idle area, the waterproof cover 4 can be delayed in flipping, thereby avoiding interference between the waterproof cover 4 and the socket base 1 when the end cover 2 just begins to flip.

[0036] The first torsion spring is located outside the first hinge shaft 8. One end of the first torsion spring is connected to the socket base 1, and the other end is connected to the end cover 2. When the end cover 2 is closed, the first torsion spring is in a torsional energy storage state. When the hook 3 releases the limit on the end cover 2, the first torsion spring releases the torsional force, thereby driving the end cover 2 to rotate around the first hinge shaft 8 in the opening direction. The first torsion spring is used to provide an automatic opening force for the end cover 2 to reduce the external force required for the user to open the end cover 2. At the same time, the first torsion spring can also enable the end cover 2 to maintain a relatively stable open state after it is opened.

[0037] The second torsion spring 5 is located outside the second hinge shaft 9. One end of the second torsion spring 5 is connected to the end cover 2, and the other end is connected to the waterproof cover 4. The second torsion spring 5 is used to drive the waterproof cover 4 to deflect away from the inner side of the end cover 2. The restoring torque provided by the second torsion spring 5 is less than the restoring torque provided by the first torsion spring. When the waterproof cover 4 is in the control state of the linkage transmission mechanism, the linkage transmission mechanism can overcome the restoring force of the second torsion spring 5 and drive the waterproof cover 4 to flip. When the gear 7 disengages from the teeth of the end face gear 6 and re-enters the idle running state, the waterproof cover 4 loses the constraint of the linkage transmission mechanism. At this time, the second torsion spring 5 can drive the waterproof cover 4 to deflect away from the inner side of the end cover 2 to prevent the waterproof cover 4 from swinging downward under the action of gravity and getting stuck between the end cover 2 and the socket base 1. The second torsion spring 5 is used to control the posture of the waterproof cover 4 during the idle running stage, thereby improving the overall mechanism's motion stability.

[0038] A sealing layer can be provided between the inner side of the end cap 2 and the contact surface of the waterproof cover 4. The sealing layer can be a rubber layer, a silicone layer or an elastic foam layer. After the sealing layer is provided, the waterproof cover 4 can fit with the end cap 2 when it covers the inner side of the end cap 2, thereby reducing the possibility of rainwater entering between the waterproof cover 4 and the end cap 2. The sealing layer is used to improve the shielding effect of the waterproof cover 4 on the inner side of the end cap 2.

[0039] Working principle: When end cover 2 is closed, it covers the socket base 1, and hook 3 engages with end cover 2, thus restricting its opening. At this time, waterproof cover 4 is located on the outside of end cover 2, and gear 7 is located in the toothless area of ​​end face gear 6. When the user needs to charge, the user pushes hook 3 to disengage from end cover 2. The first torsion spring releases the torsional force and drives end cover 2 to rotate around the first hinge shaft 8 in the opening direction. In the initial stage of end cover 2 rotation, since gear 7 is still located in the toothless area of ​​end face gear 6, waterproof cover 4 maintains its original posture. As end cover 2 continues to rotate, gear 7 gradually enters the toothed area of ​​end face gear 6. After gear 7 meshes with end face gear 6, the second hinge shaft 9 rotates under the drive of gear 7, thereby driving waterproof cover 4 to the inside of end cover 2. When the end cover 2 is fully opened, the waterproof cover 4 covers the inner side of the end cover 2, thus shielding the inner side of the end cover 2 and reducing the amount of rainwater adhering to the inner side of the end cover 2. After charging is completed, the user pushes the end cover 2 to the closing direction. The gear 7 rolls in the opposite direction on the end face gear 6, and drives the waterproof cover 4 to gradually detach from the inner side of the end cover 2. After the gear 7 disengages from the teeth of the end face gear 6, the gear 7 returns to the free-running state. At this time, the second torsion spring 5 drives the waterproof cover 4 to deflect away from the inner side of the end cover 2, thereby preventing the waterproof cover 4 from swinging downward under the action of gravity and getting stuck between the end cover 2 and the socket base 1. As the end cover 2 continues to flip, the end cover 2 covers the socket base 1 again, and the hook 3 engages with the end cover 2 again, thus completing the entire closing process.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dustproof device for a power interface of a new energy vehicle, comprising a socket base (1), an end cap (2), and a hook (3), wherein the end cap (2) is rotatably mounted on the socket base (1) via a first hinge shaft (8), and the hook (3) is disposed on the side of the socket base (1) away from the first hinge shaft (8), for engaging with the end cap (2) after the end cap (2) is closed, characterized in that: A waterproof cover (4) is provided on the end cover (2). The waterproof cover (4) is rotatably mounted on the end cover (2) via a second hinge shaft (9). When the end cover (2) is opened and away from the socket base (1), the waterproof cover (4) can cover the side of the end cover (2) facing the inside of the socket. When the end cover (2) is closed and covers the socket base (1), the waterproof cover (4) flips to the side of the end cover (2) away from the inside of the socket. A sealing layer is provided between the inner side of the end cover (2) and the contact surface of the waterproof cover (4). A linkage transmission mechanism is provided between the first hinge shaft (8) and the second hinge shaft (9). The linkage transmission mechanism is used to drive the waterproof cover (4) to flip relative to the end cover (2) during the flipping process of the end cover (2). The linkage transmission mechanism includes an end face gear (6) provided on the first hinge shaft (8) and a gear (7) provided on the second hinge shaft (9). The gear (7) meshes with the end face gear (6). The end face gear (6) is only provided with teeth in a local area and is toothless in the rest of the area, so that the gear (7) is in an idle state in the early stage of the flipping of the end cover (2). When the end cover (2) is flipped to a preset angle, the gear (7) begins to mesh with the teeth on the end face gear (6) and drives the waterproof cover (4) to deflect towards the side of the end cover (2) facing the inside of the socket as the end cover (2) continues to flip. A first torsion spring is provided at the first hinge shaft (8). The two ends of the first torsion spring are connected to the end cover (2) and the socket base (1) respectively, and are used to drive the end cover (2) to flip in the opening direction. A second torsion spring (5) is provided at the second hinge shaft (9). The second torsion spring (5) is used to drive the waterproof cover (4) to deflect away from the end cover (2) towards the inside of the socket. The restoring torque provided by the second torsion spring (5) is less than the restoring torque provided by the first torsion spring. When the gear (7) disengages from the teeth on the end face gear (6) and enters the free-running state, the second torsion spring (5) drives the waterproof cover (4) to deflect away from the inside of the socket on the side of the end cover (2) to avoid the waterproof cover (4) from getting stuck between the end cover (2) and the socket base (1). When the waterproof cover (4) covers the side of the end cover (2) facing the inside of the socket, it is fitted to the surface of the end cover (2) to prevent rainwater from adhering to the side of the end cover (2) facing the inside of the socket.

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