A charging door assembly with manual emergency function

Abstract

A small charging door assembly with a manual emergency function includes: a charging port seat having an inner cavity, an external opening communicating with the inner cavity, and charging interfaces communicating with the inner cavity and an in-vehicle battery assembly, respectively; the charging port seat is also provided with a guide track structure; a charging port cover, which is installed in the charging port seat in an openable and closable manner and has at least a closed state and an open and hidden state; a clutch drive assembly and a transmission assembly, which act together on the charging port cover to switch the state of the charging port cover relative to the charging port seat; the clutch drive assembly has an automatic operation position and a manual emergency position, and the transmission assembly can be adapted to either the automatic operation position or the manual emergency position to open or close the charging port cover. The present invention realizes the clutch switching function of the power by adjusting and installing the clutch drive assembly and the transmission assembly structure, and can realize the emergency switch function in an emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charging components, and in particular to a small charging door assembly with a manual emergency function. Background Art

[0002] New energy electric vehicles are vehicles that are powered by an onboard electrical system, using an electric motor to drive the wheels, and comply with all road traffic and safety regulations. They use electricity stored in batteries for propulsion. Sometimes 12 or 24 batteries are used to propel the vehicle, and sometimes more are needed. These vehicles typically feature a charging port cover on the vehicle body that opens and closes the port, through which a charging gun is inserted to charge the vehicle's internal batteries. Specifically, a charging door is used to close or open the charging port on electric vehicles. This door features a charging cover that can be moved between a closed position and an open position. In the closed position, the cover forms a substantially seamless transition with the exterior surface of the vehicle body. In the open position, the cover releases the charging port, allowing a charging gun to be inserted into the corresponding charging socket to charge the vehicle's energy storage device.

[0003] This type of charging cover door is used for charging vehicles, particularly those with electric drives, and is particularly applicable to new energy vehicles. Unlike conventional fuel-powered vehicles, which typically open the refueling door for a few minutes before closing, charging times in new energy vehicles are often longer, and the existing flip-out cover remains exposed for extended periods. For safety reasons, the protruding cover can easily scratch skin or clothing. Playful children, curious about the flip-out cover during charging, can easily lead to safety accidents. Furthermore, for aesthetic reasons, leaving it open for extended periods during charging affects the uniform visual appearance of the exterior.

[0004] For example, patent document CN111791724A is an invention patent technology previously filed by the applicant, which discloses a mobile charging door comprising: a charging port seat having an inner cavity, an external opening communicating with the inner cavity, and charging interfaces communicating with the inner cavity and an in-vehicle battery assembly respectively, and a guide track structure being provided on the charging port seat; a charging port cover, which can be opened and closed and installed in the charging port seat, and has at least a covered state and an open and hidden state, and the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is slidably arranged in the guide track structure; a pulley transmission mechanism, which is adapted to the position of the guide track structure, and the pulley transmission mechanism is in transmission connection with the sliding foot assembly; and a driving mechanism, which is in transmission connection with the pulley transmission mechanism.

[0005] The structure of the above-mentioned products has certain defects during use, such as the lack of a manual emergency device. When the vehicle computer encounters problems such as shutdown, code confusion, or the drive component is stuck, the function of the vehicle computer to automatically open the charging port cover fails, and the user cannot open the charging port cover by manual or other means, resulting in the user being unable to charge the vehicle, which in turn leads to insufficient energy in the vehicle and inability to continue to use the vehicle, causing great inconvenience in travel. Summary of the Invention

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a charging door assembly with a manual emergency function.

[0007] The technical solution of the present invention to solve the technical problem is: a charging door assembly with a manual emergency function, comprising:

[0008] A charging port seat having an inner cavity, an external opening communicating with the inner cavity, and a charging interface communicating with the inner cavity and the battery assembly in the vehicle, respectively; the charging port seat also has a guide track structure;

[0009] A charging port cover, which is installed in the charging port seat in an openable and closable manner and has at least a closed state and an open and hidden state;

[0010] The clutch drive assembly and the transmission assembly act together on the charging port cover to switch the state of the charging port cover relative to the charging port seat;

[0011] The clutch drive assembly has an automatic operation position and a manual emergency position, and the transmission assembly can be adapted to either the automatic operation position or the manual emergency position to open or close the charging port cover.

[0012] The above technical solution is further configured as follows: the clutch drive assembly includes a drive seat capable of moving forward or backward, and a clutch switching wheel arranged in the drive seat;

[0013] A driving slot is formed in the driving seat, and the clutch switching wheel is movably arranged in the driving slot, and the clutch switching wheel has at least a first position state and a second position state relative to the driving slot;

[0014] The driving slot has an emergency opening, and the emergency opening is arranged toward the second position state;

[0015] When the clutch switching wheel is in the first position, the clutch switching wheel acts on the transmission assembly to keep the transmission assembly in the automatic operation position; when the clutch switching wheel is in the second position, the transmission assembly can leave the drive slot along the emergency opening.

[0016] The above technical solution is further configured as follows: an elastic reset member is further provided in the driving groove, one end of the elastic reset member is connected to the driving seat, and the other end is connected to the clutch switching wheel, so that the clutch switching wheel always has a movement tendency to move toward the first position state.

[0017] The above technical solution is further configured as follows: a receiving groove is further recessed in the driving groove, a first positioning notch is provided on the receiving groove, a positioning block is provided on the side wall of the clutch switching wheel, and a second positioning notch is formed between the positioning block and the clutch switching wheel; one end of the elastic reset member is clamped in the first positioning notch, and the other end is clamped in the second positioning notch.

[0018] The above technical solution is further configured as follows: the clutch switching wheel has at least a first limiting end and a second limiting end, and the driving groove has a first limiting surface and a second limiting surface; when the clutch switching wheel is in the first position state, the first limiting end abuts against the first limiting surface and forms a limiting fit in the first direction; when the clutch switching wheel is in the second position state, the second limiting end abuts against the second limiting surface and forms a limiting fit in the second direction.

[0019] The above technical solution is further configured as follows: the clutch switching wheel is in a "Z"-shaped boomerang shape, and the clutch switching wheel is rotatably arranged in the driving groove.

[0020] The above technical solution is further configured as follows: the clutch drive assembly further includes a drive device, and the drive device forms a transmission fit with the drive seat via a drive flexible shaft arranged along the moving direction.

[0021] The above technical solution is further configured as follows: the transmission assembly includes a push-pull rod, an axial hole is opened on the charging port cover, the push-pull rod is inserted into the axial hole to achieve transmission cooperation, and the push-pull rod also forms a limiting cooperation with the guide track structure.

[0022] The above technical solution is further configured as follows: the guide track structure includes a front track groove group and a rear track groove group, the charging port cover is provided with a sliding foot assembly, the sliding foot assembly is slidably arranged in the front track groove group, and the push-pull rod is slidably arranged in the rear track groove group.

[0023] The above technical solution is further configured as follows: the front track groove group is straight, the front section of the rear track groove group is bent downward from front to back, and the middle and rear sections of the rear track groove group are also straight.

[0024] The charging port cover of the present invention is divided into normal operation and manual emergency operation. The working principle is as follows:

[0025] Under normal operating conditions, the transmission assembly is adapted to the automatic operating position of the clutch drive assembly, and the two are operationally engaged. The drive assembly and the transmission assembly are power-connected, that is, the drive assembly (under the control of the vehicle computer) can transmit power to the charging port cover through the transmission assembly during operation, so that the charging port cover can switch between a closed state and an open and hidden state.

[0026] In the manual emergency situation, when the vehicle computer, drive assembly, etc. fail, the drive assembly can no longer open or close the charging port cover. The user can directly operate the charging port cover to adapt the transmission assembly to the manual emergency position of the clutch drive assembly, and the transmission relationship between the drive assembly and the transmission assembly is disconnected. At this time, the user continues to apply force to the charging port cover, and the charging port cover and the transmission assembly move together, manually switching the charging port cover between the closed state and the open and hidden state, realizing the emergency switch function of the emergency charging port cover.

[0027] The beneficial effects of the present invention are: by adjusting and installing the clutch drive assembly and transmission assembly structure, a power clutch switching function is achieved. When engaged (the transmission assembly is compatible with the automatic operation position), the clutch drive assembly can drive the charging port cover to switch normally between the closed state and the open and hidden state; when disengaged (the transmission assembly is compatible with the manual emergency position), the clutch drive assembly eliminates the connection and interference with the transmission assembly, and the user can manually switch the charging port cover between the closed state and the open and hidden state, realizing the emergency switch function of the emergency charging port cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the charging port cover in the present invention in a closed state.

[0029] Figure 2 It is a structural schematic diagram of the charging port cover in the present invention in an open and hidden state.

[0030] Figure 3 It is an exploded schematic diagram of the present invention (excluding the charging port).

[0031] Figure 4 It is a structural schematic diagram of the charging port cover in the present invention (excluding the charging port seat) in a closed state.

[0032] Figure 5 This is a structural schematic diagram of the charging port cover (excluding the charging port seat) in the present invention when it is in the process of opening.

[0033] Figure 6 This is a structural diagram of the charging port cover in the present invention (excluding the charging port seat) in an open and hidden state.

[0034] Figure 7 This is a schematic diagram of the movement of the push and pull rods when the charging port cover is in normal use.

[0035] Figure 8 This is a schematic diagram of the movement of the push-pull rod when the charging port cover is manually opened in an emergency.

[0036] Figure 9 This is a schematic diagram of the movement of the charging port cover when it is manually closed in an emergency.

[0037] Figure 10 It is an enlarged schematic diagram of the drive slot.

[0038] Figure 11 It is a structural diagram of the clutch switching wheel. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Reference Figures 1 to 11 , a charging door assembly with a manual emergency function, comprising:

[0041] A charging port seat 1, which has an inner cavity 2, an external opening 3 communicating with the inner cavity 2, and a charging interface 4 communicating with the inner cavity 2 and the battery assembly in the vehicle respectively. The charging port seat 1 is also provided with a guide track structure; a charging port cover 5, which can be installed in the charging port seat 1 in an openable and closable manner, and has at least a covered state and an open and hidden state; a clutch drive assembly 6 and a transmission assembly 7, which act together on the charging port cover 5 to enable the charging port cover 5 to switch its state relative to the charging port seat 1; the clutch drive assembly has an automatic operation station a and a manual emergency station b, and the transmission assembly 7 can be adapted to any one of the automatic operation station a and the manual emergency station b to enable the charging port cover 5 to be opened or closed.

[0042] The above content is the basic solution of the present invention. When the transmission component 7 is adapted to the automatic operation position a of the clutch drive component, the two are operationally engaged, and the power connection between the drive component and the transmission component 7, that is, the drive component (under the control of the vehicle computer) is in operation, can transmit power to the charging port cover 5 through the transmission component 7, so that the charging port cover 5 can switch between the closed state and the open and hidden state; when the vehicle computer, drive component, etc. fail, the user can directly operate the charging port cover 5 to make the transmission component 7 adapted to the manual emergency position b of the clutch drive component, and the transmission relationship between the drive component and the transmission component 7 is separated. At this time, the user continues to apply force to the charging port cover 5, and the charging port cover 5 moves together with the transmission component 7, so that the charging port cover 5 can be switched between the closed state and the open and hidden state manually, thereby realizing the emergency switch function of the emergency charging port cover 5.

[0043] In the present invention, the clutch drive assembly is a crucial component for achieving the manual emergency function. Simply put, while performing its basic driving function, the clutch drive assembly must also be able to engage and disengage with the transmission assembly 7. When engaged, power can be transmitted, achieving the electric switch function; when disengaged, interference is eliminated, achieving the manual emergency switch function.

[0044] The preferred physical structure of the clutch drive assembly is as follows: it includes a drive seat 8 that can move forward or backward, and a clutch switching wheel 9 disposed in the drive seat 8; a drive slot 10 is provided in the drive seat 8, and the clutch switching wheel 9 is movably disposed in the drive slot 10, and the clutch switching wheel 9 has at least a first position state and a second position state relative to the drive slot 10; the drive slot 10 has an emergency opening 21, and the emergency opening 21 is disposed toward the second position state. When in use, when the clutch switching wheel 9 is in the first position state (engaged), the clutch switching wheel 9 acts on the transmission assembly 7 to keep the transmission assembly 7 in the automatic operation position a; when the clutch switching wheel 9 is in the second position state (disengaged), the transmission assembly 7 can leave the drive slot 10 along the emergency opening 21.

[0045] The above technical solution is further configured as follows: an elastic reset member 20 is further provided in the driving groove 10, one end of the elastic reset member 20 is connected to the driving seat 8, and the other end is connected to the clutch switching wheel 9, so that the clutch switching wheel 9 always has a movement tendency to move toward the first position state. The setting of the elastic reset member 20, on the one hand, can act on the clutch switching wheel 9, and when the position thereof is changed by force, it can automatically reset to the first position state when the force disappears; on the other hand, when the clutch switching wheel 9 is in the first position state, the elastic reset member 20 can provide a certain holding force to maintain the stability of the clutch switching wheel 9 under non-artificial forces (such as wind force) to prevent the clutch switching wheel 9 from moving arbitrarily when unnecessary.

[0046] The elastic reset member 20 is preferably a torsion spring, which is sleeved on the rotating part, and has good effects in terms of space and functional realization.

[0047] Due to the limited space in the vehicle, the drive seat 8 needs to be as small and reliable as possible while ensuring its functionality. Here, a preferred installation scheme for the elastic reset member 20 is provided, specifically: a receiving groove is also recessed in the drive groove 10, and a first positioning notch is provided on the receiving groove. A positioning block is provided on the side wall of the clutch switching wheel 9, and a second positioning notch is formed between the positioning block and the clutch switching wheel 9; one end of the elastic reset member 20 is clamped in the first positioning notch, and the other end is clamped in the second positioning notch. Preferably, the size of the first positioning notch is slightly larger than the diameter of the elastic reset member 20, so that one end of the elastic reset member 20 can and only moves in the first positioning notch during use, which not only meets the normal function, but also effectively limits it and prevents it from being disengaged. At the same time, it improves the fatigue resistance of the elastic reset member 20, reduces the probability of deformation failure, ensures stable working conditions, and extends its service life. On the other hand, the second positioning notch is preferably set near the first limiting end, so that the force exerted by the elastic reset member 20 on the clutch switching wheel 9 is more direct and efficient.

[0048] In some embodiments, the clutch switching wheel 9 has at least a first limiting end 11 and a second limiting end 13, and the driving slot 10 has a first limiting surface 12 and a second limiting surface 14; when the clutch switching wheel 9 is in the first position, the first limiting end 11 abuts against the first limiting surface 12 and forms a limiting fit in a first direction (e.g., counterclockwise); when the clutch switching wheel 9 is in the second position, the second limiting end 13 abuts against the second limiting surface 14 and forms a limiting fit in a second direction (e.g., clockwise). Through the cooperation between the first limiting end 11 and the first limiting surface 12, and the cooperation between the second limiting end 13 and the second limiting surface 14, the movement path and extreme movement position of the clutch switching wheel 9 in the driving slot 10 can be effectively limited, thereby ensuring the normal implementation of the clutch switching wheel 9's function.

[0049] The clutch switching wheel 9 is more specifically in the form of a "Z"-shaped boomerang, and the clutch switching wheel 9 is rotatably arranged in the driving slot 10 to achieve the effect of movement and function switching in a smaller space.

[0050] The above technical solution is further configured as follows: the clutch drive assembly further includes a drive device (not shown), which forms a transmission connection with the drive base 8 via a drive flexible shaft 15 arranged along the moving direction. The drive device can be a motor or other power component, and the drive flexible shaft 15 can also be replaced by other components such as a screw, without special limitation.

[0051] The preferred structural scheme of the transmission assembly 7 in the present invention is: it includes a push-pull rod 17, and an axial hole 16 is opened on the charging port cover 5. The push-pull rod 17 is inserted into the axial hole 16 to achieve transmission cooperation, and the push-pull rod 17 also forms a limiting cooperation with the guide track structure.

[0052] There are many different guide track structures, each with its own advantages and disadvantages. This embodiment proposes a preferred guide track structure. Specifically, the guide track structure includes a front track groove group 18 and a rear track groove group 19. The charging port cover 5 is provided with a sliding foot assembly 22, which slides within the front track groove group 18, and the push-pull rod 17 slides within the rear track groove group 19. The dual track groove group structure creates two sets of contact points between the charging port cover 5 and the guide track structure, ensuring even force distribution. This allows the charging port cover 5 to move more smoothly during opening and closing, and prevents damage or fracture to related parts due to excessive force.

[0053] On the other hand, the charging port cover 5 does not simply move in a straight line when switching from the closed state to the open and hidden state. Specifically, when in the closed state, the charging port cover 5 needs to be flush with the outer sheet metal surface of the vehicle body, forming a streamlined, integrated shape. When in the open and hidden state, the charging port cover 5 needs to be concealed within the inner cavity 2 of the charging port holder 1. Therefore, during the switching movement, the rear end of the charging port cover 5 must move more than the front end. To meet the operational requirements of the charging port cover 5, the front track groove group 18 is straight (c), the front section of the rear track groove group 19 is bent downward from front to back (d), and the middle and rear sections of the rear track groove group 19 are also straight (c).

[0054] The motion paths of the push-pull rods in each case are as follows:

[0055] 1. When the charging port cover is in normal use, refer to Figure 7 On the one hand, the push-pull rod is located in the automatic operation position of the drive slot and is driven by the clutch drive assembly. On the other hand, the push-pull rod, the clutch drive assembly and the charging port cover can move together along the track of the rear track slot group. The movement track of the push-pull rod relative to the drive slot in this process is as follows Figure 7 As shown by the middle arrow, the clutch switching wheel does not change position and is always in the first position state.

[0056] 2. When the charging port cover is opened manually in an emergency, refer to Figure 8 The push-pull rod (charging port cover) is subjected to the emergency force applied by the hand, and the clutch switch wheel is pressed by the push-pull rod and switches from the first position to the second position. Then the push-pull rod and the charging port cover move together along the track of the rear track groove group. The movement track of the push-pull rod relative to the driving groove in this process is as follows: Figure 8 As shown by the middle arrow, the clutch switching wheel changes position, first switching from the first position state to the second position state, and then returning from the second position state to the first position state under the action of the elastic reset member after losing the force applied by the push-pull rod.

[0057] 3. When the charging port cover is closed manually, refer to Figure 9 , the push-pull rod (charging port cover) is subjected to the emergency force applied by the hand, and the push-pull rod and the charging port cover move together along the track of the rear track groove group. Then the push-pull rod contacts the clutch switching wheel which is in the first position. The clutch switching wheel switches to the second position under the force applied by the push-pull rod to allow the push-pull rod to pass; after passing, the push-pull rod is in an avoidance position e of the drive groove. At this time, the push-pull rod and the clutch switching wheel are staggered, and the clutch switching wheel is reset to the first position. At the same time, the push-pull rod is in the automatic operation position of the drive groove, and the reset is completed. The movement trajectory of the push-pull rod relative to the drive groove in this process is as follows Figure 9As shown by the middle arrow, the clutch switching wheel changes position, first switching from the first position state to the second position state, and then returning from the second position state to the first position state under the action of the elastic reset member after losing the force applied by the push-pull rod.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A charging door assembly with a manual emergency function, comprising: A charging port seat having an inner cavity, an external opening communicating with the inner cavity, and a charging interface communicating with the inner cavity and the battery assembly in the vehicle, respectively; the charging port seat also has a guide track structure; A charging port cover, which is installed in the charging port seat in an openable and closable manner and has at least a closed state and an open and hidden state; The clutch drive assembly and the transmission assembly act together on the charging port cover to switch the state of the charging port cover relative to the charging port seat; the characteristics are: The clutch drive assembly has an automatic operation position and a manual emergency position, and the transmission assembly can be adapted to either the automatic operation position or the manual emergency position to open or close the charging port cover; The clutch drive assembly includes a drive seat capable of moving forward or backward, and a clutch switching wheel arranged in the drive seat; A driving slot is formed in the driving seat, and the clutch switching wheel is movably arranged in the driving slot, and the clutch switching wheel has at least a first position state and a second position state relative to the driving slot; The driving slot has an emergency opening, and the emergency opening is arranged toward the second position state; When the clutch switching wheel is in the first position, the clutch switching wheel acts on the transmission assembly to keep the transmission assembly in the automatic operation position; when the clutch switching wheel is in the second position, the transmission assembly can leave the drive slot along the emergency opening; The clutch switching wheel has at least a first limiting end and a second limiting end, and the driving slot has a first limiting surface and a second limiting surface; when the clutch switching wheel is in the first position, the first limiting end abuts against the first limiting surface and forms a limiting fit in the first direction; when the clutch switching wheel is in the second position, the second limiting end abuts against the second limiting surface and forms a limiting fit in the second direction; The transmission assembly includes a push-pull rod, and an axial hole is opened on the charging port cover. The push-pull rod is inserted into the axial hole to achieve transmission cooperation, and the push-pull rod also forms a limiting cooperation with the guide track structure.

2. The charging door assembly with manual emergency function according to claim 1, characterized in that: An elastic reset member is also provided in the driving groove, one end of the elastic reset member is connected to the driving seat, and the other end is connected to the clutch switching wheel, so that the clutch switching wheel always moves towards the first position state.

3. The charging door assembly with manual emergency function according to claim 2, characterized in that: The driving groove is also provided with an accommodating groove, the accommodating groove is provided with a first positioning notch, the side wall of the clutch switching wheel is provided with a positioning block, and a second positioning notch is formed between the positioning block and the clutch switching wheel; one end of the elastic reset member is clamped in the first positioning notch, and the other end is clamped in the second positioning notch.

4. The charging door assembly with manual emergency function according to claim 1, characterized in that: The clutch switching wheel is in the shape of a "Z"-shaped boomerang, and the clutch switching wheel is rotatably arranged in the driving groove.

5. The charging door assembly with manual emergency function according to claim 1, characterized in that: The clutch drive assembly further comprises a drive device, which forms a transmission fit with the drive seat via a drive flexible shaft arranged along the moving direction.

6. The charging door assembly with manual emergency function according to claim 5, characterized in that: The guide track structure includes a front track groove group and a rear track groove group. The charging port cover is provided with a sliding foot assembly. The sliding foot assembly is slidably arranged in the front track groove group, and the push-pull rod is slidably arranged in the rear track groove group.

7. The charging door assembly with manual emergency function according to claim 6, characterized in that: The front track groove group is straight, the front section of the rear track groove group is bent from front to back and tilted downward, and the middle and rear sections of the rear track groove group are also straight.

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