A control device for a charging door of an automobile
By introducing a bistable mechanism and an electromagnetic safety device into the charging gate control device, the problems of loose locking and safety hazards of the charging gate are solved, achieving dual locking, anti-accidental touch and sealing effects, and improving the stability and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUYAO JINGTIAN AUTO PARTS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-09
AI Technical Summary
Existing charging gate control devices suffer from problems such as loose engagement, poor stability, inadequate waterproofing, and potential safety hazards.
It adopts a design that includes a housing, push rod, hook and spring, combined with a press-type bistable mechanism and electromagnetic safety device to achieve dual locking and anti-accidental touch function, and prevents water and dust intrusion through docking pads.
It provides dual locking protection, improving ease of operation and safety, while also enhancing sealing to prevent the small door from accidentally popping open and water and dust from entering.
Smart Images
Figure CN224338778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of charging door control equipment, and in particular to a car charging door control device. Background Technology
[0002] A charging port is used to close or open the charging port in the body of a vehicle with an electric drive. It allows the charging gun to charge the vehicle's battery through the port. In new energy vehicles, the charging port is used to replace the fuel filler cap on traditional vehicles. There are two main types of charging port actuators in existing technology.
[0003] Type 1 is similar to a mechanical pencil. When pressed, the slot locks the push rod. Then, a micro motor drives a pin through gears or a worm gear to insert the push rod, locking it in place. To unlock, the motor reverses, disengaging the pin. However, this type of structure is prone to loose locking during use, leading to instability. Additionally, it has poor waterproofing, with water accumulating at the press port. When the push rod is pushed in, the water can flow into the actuator, causing damage.
[0004] Another type utilizes a push rod with a spiral groove structure. When the push rod is pressed, it rotates 90 degrees along the spiral groove, thus locking the small door. A micro motor then uses a worm gear to push a pin into the push rod, locking it in place. To unlock, the motor is reversed. However, this structure has a safety hazard. When the small door is open, the push rod is in the pop-out position. In case of accidental operation, if the push rod is pressed prematurely, it may be pushed in, making it impossible to close the small door and potentially causing damage to the vehicle. Utility Model Content
[0005] To address the technical problems of loose connection and poor stability in the aforementioned control devices, this utility model provides a car charging gate control device, the specific technical solution of which is as follows:
[0006] A car charging door control device includes a housing, a push rod, a hook, and a spring;
[0007] The outer casing has an insertion port at one end, and the push rod is slidably disposed inside the outer casing;
[0008] A press-type bistable mechanism is provided between the push rod and the housing to lock the push rod after it is pressed and unlock it after it is pressed again.
[0009] The spring is located inside the housing and is used to provide the restoring force of the push rod;
[0010] The hook is hinged to the bottom of the push rod, and the inner side of the housing is provided with a low position and a high position that extend along the sliding direction of the push rod;
[0011] When the push rod is pressed and moved, the hook rotates upward from the low position past the boundary between the high position to hook the connector, achieving the first locking; at the same time, the press-type bistable mechanism triggers the second locking.
[0012] Furthermore, the press-type bistable mechanism includes:
[0013] A heart-shaped groove on the push rod and a pull hook on the outer casing;
[0014] The heart-shaped slide includes a locking slide and an unlocking slide that are interconnected. The tip of the heart-shaped slide is the first locking position, and the concave part is the second locking position.
[0015] The hook is equipped with a hook head that can slide along a heart-shaped groove;
[0016] When the push rod is pressed, the hook head slides from the first locking position through the locking groove to the second locking position to achieve locking;
[0017] When pressed again, the hook moves from the second locking position back to the first locking position via the unlocking slide to unlock.
[0018] Furthermore, it also includes a safety device, which includes a slider slidably disposed in the housing, the slider being movable to the rear of the push rod to abut the push rod and limit the push rod's rebound space.
[0019] Furthermore, the safety device also includes an electromagnetic device fixed inside the housing and a lever hinged to the housing in the middle; one end of the lever is provided with a magnetic attraction part, and the other end of the lever is provided with a drive fork; the drive fork is inserted into the slider; the electromagnetic device can drive the lever to tilt up by magnetic attraction by moving the magnetic attraction part downward, thereby moving the slider.
[0020] Furthermore, the push rod has a mating pad on the side near the insertion port, the shape of which matches the insertion port to seal the insertion port and prevent water from entering.
[0021] Furthermore, the bottom end of the push rod is provided with two parallel hook grooves, and the hooks are hinged by inserting the two ends of the hook pins into the grooves; the path design of the hook grooves allows the push rod to retract a certain distance first, and then drive the hooks to flip from the low position to the high position.
[0022] Furthermore, the hook groove has a first inclined surface at its end, and the hook pin has a second inclined surface. The angles of the first and second inclined surfaces are different. When the push rod is reset, the first inclined surface at the end of the hook groove pushes the second inclined surface to rotate and reset the hook pin.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] Dual locking for safety and reliability: Combining a hook mechanical lock and a push-type bistable self-locking mechanism, it provides two levels of locking protection to effectively prevent the small door from accidentally popping open.
[0025] Easy to operate: Opening and closing actions are all completed by pressing the push rod, which is ergonomic.
[0026] Anti-accidental touch function: Integrated electromagnetic safety device to prevent accidental operation and improve safety.
[0027] Excellent sealing: Dedicated mating pads are provided to effectively prevent water and dust intrusion and protect the internal structure. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the internal structure of the outer casing in this application;
[0029] Figure 2 This is a schematic diagram of the structure of the connector when it is not inserted into the outer shell in this application;
[0030] Figure 3 This is a schematic diagram of the state structure when the connector is inserted into the outer shell in this application;
[0031] Figure 4 This is a three-dimensional structural diagram of the push rod in this application;
[0032] Figure 5 This is a schematic diagram showing the setting states of the locking and unlocking slides on the push rod in this application;
[0033] Figure 6 This is a schematic diagram of the disassembled structure of the push rod and hook in this application;
[0034] Figure 7 This is a schematic diagram of the fit between hook 3 and connector in this application;
[0035] Figure 8 This is a schematic diagram of the slider being positioned behind the push rod in this application;
[0036] Figure 9 This is a schematic diagram showing the position of the tension spring in this application;
[0037] Reference numerals: housing 1, insertion port 11, low position 12, high position 13, push rod 2, locking groove 21, unlocking groove 22, docking pad 23, hook groove 24, first inclined surface 24a, hook 3, hook pin 31, second inclined surface 31a, spring 4, pull hook 5, hook head 51, safety device 6, electromagnetic device 61, lever 62, magnetic suction part 621, drive fork 622, slider 63, tension spring 64. Detailed Implementation
[0038] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0039] like Figures 1 to 9 As shown, a car charging door control device includes a housing 1, a push rod 2, a hook 3, and a spring 4. The push rod 2 is allowed to slide down and move within the housing 1 under the action of external force. One end of the housing 1 is provided with an insertion port 11. The hook 3 is hinged to the lower part of the push rod 2. The inner side of the housing 1 is provided with a low position 12 and a high position 13, which are aligned with the hook 3 and are linearly arranged along the sliding direction of the push rod 2. The hook 3 moves with the push rod 2 and can switch between unlocking and locking when passing through the boundary position of the low position 12 and the high position 13. A press-type bistable mechanism is also provided between the push rod 2 and the housing 1. The press-type bistable mechanism locks the push rod 2 when it is pressed in and automatically unlocks it when it is pressed again. The spring 4 is provided in the housing 2 to provide the rebound force of the push rod 2.
[0040] The advantage of this application lies in the addition of a hook 3, which, together with the press-type bistable mechanism, enables locking of the hook 3. Specifically, when the connector enters the housing 1 from the insertion port 11, the press-pull rod 2 moves inward. During this movement, the hook 3 follows the push rod 2 from the low position 12 past the boundary between the high position 13, thus being pushed upward to hook the connector, achieving the first locking. Simultaneously, the press-type bistable mechanism achieves a second locking. To unlock, the push rod 2 is pressed again, and under the action of the spring 4, the push rod 2 rebounds, the press-type bistable mechanism automatically unlocks, and the hook 3 falls from the high position 13 to the low position 12, disengaging and unlocking the device.
[0041] Specifically, the press-type bistable mechanism includes a locking groove 21 and an unlocking groove 22 on the hook 2, and a pull hook 5 on the outer shell 1. The locking groove 21 and the unlocking groove 22 are interconnected to form a heart-shaped groove, with the pointed end being the first locking position and the recessed end being the second locking position. When pressed, the hook head 51 of the pull hook 5 moves from the first locking position along one side of the heart-shaped groove, i.e., from the locking groove 21 to the second locking position to unlock. When pressed again, the hook head 51 disengages from the second locking position and moves along another path, i.e., from the unlocking groove 22 back to the first locking position to unlock.
[0042] Specifically, the hook 5 is made of metal rod, which can meet the structural strength requirements of the hook 5 during reciprocating movement, and improve the service life and safety of the equipment.
[0043] In a preferred embodiment, this application also includes a safety device 6, which comprises an electromagnetic device 61, a lever 62, and a slider 63. The electromagnetic device 61 is disposed within the housing 1. The lever 62 is hinged in the middle within the housing 1. A magnetic attraction part 621 is provided at one end of the lever 62 near the electromagnetic device 61, and a drive fork 622 is provided at the other end of the lever 62 away from the electromagnetic device 61. The slider 63 is slidably disposed within the housing 1 and located behind the push rod 2. The drive fork 622 is inserted into the slider 63. Activating the electromagnetic device 61 pulls down the magnetic attraction part 621, raising the drive fork 622, which causes the slider 63 to move upward and press against the back of the push rod 2. The function of the safety device 6 is to prevent accidental operation. Because the return of the gear lever 2 requires pressing and moving backward a certain distance, the slider 63 pressing against the back of the push rod 2 prevents the gear lever 2 from moving and thus prevents it from pressing and returning, thereby ensuring vehicle safety.
[0044] It should be noted that a tension spring 64 can be installed between the slider 63 and the outer casing 1. When the electromagnetic device 61 is closed, the slider 63 can be reset by the tension spring 64.
[0045] In a preferred embodiment, a mating pad 23 is provided on the side of the push rod 2 near the insertion port 11. The mating pad 23 fits into the insertion port 11. The mating pad 23 blocks the insertion port 11, thereby preventing external rainwater from entering the interior of the outer shell 1 and causing damage to its internal structure and short circuit.
[0046] In a preferred embodiment, the bottom end of the push rod 2 has two hook grooves 24. The hook 3 is provided with hook pins 31, both ends of which are inserted into the hook grooves 24. This allows the hook to rotate, and this design is primarily for structural compactness. Specifically, in the unlocked state, the hook 3 is retracted into the low position 12. The purpose of the hook grooves 24 is to allow the push rod 2 to retract a certain distance after being pressed before moving the hook 3 upwards, thus preventing the hook 3 from interfering with the movement of the push rod 2.
[0047] In a preferred embodiment, the hook groove 24 has a first inclined surface 24a at its end, and the hook pin 31 has a second inclined surface 31a. The first inclined surface 24a and the second inclined surface 31a have different angles. When the push rod 2 resets, the first inclined surface 24a at the end of the hook groove 24 pushes the second inclined surface 31a to rotate and reset the hook pin 31. Specifically, when the push rod 2 rebounds and resets under the action of the spring 4, the first inclined surface 24a at the end of the hook groove 24 contacts the second inclined surface 31a on the hook pin 31. Due to the different angles of the two inclined surfaces, a force is generated during the contact sliding process that forces the hook pin 31 and the hook 3 to rotate relative to the push rod 2, allowing the hook 3 to rotate from the high position 13 back to the low position 12, completing the disengagement and reset action, and preventing the hook 3 from getting stuck in the middle position.
[0048] A method for controlling a car charging access door includes a dual locking mechanism, comprising:
[0049] Press the push rod (2) to slide it inward, causing the hinged hook (3) to move from the low position (12) inside the outer shell (1) past the boundary position with the high position (13), rotate upward to hook the connector, and achieve the first locking.
[0050] Synchronous triggering of the press-type bistable mechanism causes the hook head (51) of the hook (5) to slide from the first locking position through the locking groove (21) to the second locking position along the heart-shaped groove on the push rod (2), thus completing the second self-locking.
[0051] The dual-lock process includes an unlocking step, which includes:
[0052] Press the push rod (2) to make the hook (51) return from the second locking position to the first locking position through the unlocking slide (22), thereby releasing the lock of the press-type bistable mechanism;
[0053] Spring (4) drives push rod (2) to rebound, hook (3) drops from high position (13) to low position (12) to disengage and unlock;
[0054] It also includes accidental touch prevention control, characterized in that the accidental touch prevention control includes:
[0055] The electromagnetic device (61) is activated to generate magnetic force, and the magnetic attraction part (621) of the lever (62) is pulled down.
[0056] The lever (62) is tilted up with the hinge point as the fulcrum, which pushes the drive fork (622) to move the slider (63) up, so that it is against the back of the push rod (2);
[0057] By limiting the rebound space of the push rod (2), the unlocking path of the press-type bistable mechanism is blocked.
[0058] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A car charging gate control device, characterized in that: Includes a housing (1), a push rod (2), a hook (3), and a spring (4); The outer casing (1) has an insertion port (11) at one end, and the push rod (2) is slidably disposed inside the outer casing (1); A press-type bistable mechanism is provided between the push rod (2) and the outer shell (1) to realize the locking after the push rod (2) is pressed and the unlocking after pressing again; The spring (4) is located inside the housing (1) and is used to provide the restoring force of the push rod (2); The hook (3) is hinged to the bottom of the push rod (2), and the inner side of the outer shell (1) is provided with a low position (12) and a high position (13) extending along the sliding direction of the push rod (2). When the push rod (2) is pressed and moved, the hook (3) rotates upward from the low position (12) past the boundary position with the high position (13) to hook the connector and achieve the first locking; at the same time, the press-type bistable mechanism triggers the second locking.
2. The car charging gate control device according to claim 1, characterized in that, The press-type bistable mechanism includes: A heart-shaped groove is provided on the push rod (2) and a hook (5) is provided on the outer casing (1); The heart-shaped slide includes a locking slide (21) and an unlocking slide (22) that are connected to each other. The tip of the heart-shaped slide is the first locking position and the concave part is the second locking position. The hook (5) is provided with a hook head (51), which can slide along the heart-shaped groove; When the push rod (2) is pressed, the hook (51) slides from the first locking position to the second locking position through the locking groove (21) to achieve locking; When pressed again, the hook (51) returns from the second card position to the first card position via the unlocking slide (22) to unlock.
3. The car charging gate control device according to claim 1, characterized in that, It also includes a safety device (6), which includes a slider (63) slidably disposed in the housing (1), the slider (63) being movable to the rear of the push rod (2) to press against the push rod (2) to limit the rebound space of the push rod (2).
4. The car charging gate control device according to claim 3, characterized in that, The safety device (6) also includes an electromagnetic device (61) fixed inside the housing (1) and a lever (62) hinged in the middle to the housing (1); one end of the lever (62) is provided with a magnetic attraction part (621), and the other end of the lever (62) is provided with a drive fork (622); the drive fork (622) is inserted into the slider (63); the electromagnetic device (61) can drive the lever (62) to tilt up by moving the magnetic attraction part (621) downward through magnetic attraction, thereby driving the slider (63) to move.
5. The car charging gate control device according to claim 1, characterized in that: The push rod (2) has a mating pad (23) on the side near the insertion port (11), the shape of which matches the insertion port (11) and is used to seal the insertion port (11) to prevent water from entering.
6. The car charging gate control device according to claim 1, characterized in that: The bottom end of the push rod (2) is provided with two parallel hook grooves (24). The hook (3) is hinged by inserting the two ends of the hook pin (31) into the groove (24). The path design of the hook groove (24) makes the push rod (2) retract a certain distance first, and then drive the hook (3) to flip from the low position (12) to the high position (13).
7. The car charging gate control device according to claim 6, characterized in that: The hook groove (24) has a first inclined surface (24a) at its end, and the hook pin (31) has a second inclined surface (31a). The angles of the first inclined surface (24a) and the second inclined surface (31a) are different. When the push rod (2) is reset, the first inclined surface (24a) at the end of the hook groove (24) pushes the second inclined surface (31a) to make the hook pin (31) rotate and reset.