Emergency unlocking device

Abstract

The invention relates to the technical field of vehicle door control, in particular to an emergency unlocking device for vehicle door unlocking control. An emergency unlocking device can receive command control information or obtain vehicle abnormal information and drive a vehicle mechanical unlocking piece or a vehicle door lock to act so as to unlock a vehicle door in an emergency state. The emergency unlocking device provided by the invention is independent of a vehicle system and can perform emergency unlocking on the vehicle door in a normal duty mode without manual operation, and when the vehicle has an accident and needs to escape or receive external rescue, the self-rescue or rescued maximum obstacle caused by the dead door locking of the vehicle door is removed by automatically completing the unlocking action, so that the safety of the vehicle is improved. And the accident survival probability of passengers in the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle door control, and in particular to an emergency unlocking device for vehicle door unlocking control. Background Art

[0002] Car accidents, especially serious ones, have a certain probability of causing vehicle fires and casualties. Existing car safety regulations require that cars should be automatically unlocked after a collision to facilitate external rescue.

[0003] However, the automatic unlocking of existing car systems has the following risks: 1. Automatic unlocking requires vehicle electronic control. In addition to the impact of sensor layout and recognition rate, there is also the problem of being unable to complete unlocking due to power outages in accidents. Some car manufacturers use multiple backup power supplies, but this still cannot completely prevent the unlocking device from losing power. 2. Nearly 30% of trams use electric buttons for conventional unlocking. Car owners and passengers are not familiar with mechanical emergency unlocking devices. Some trams, such as Tesla, have all or part of their door emergency unlocking devices hidden, making it difficult to complete self-rescue in an emergency. 3. In a major accident, even if a vehicle is equipped with mechanical unlocking, the driver and passengers will lose consciousness and ability to move in a violent collision and will be unable to complete the internal unlocking by themselves. It will be extremely difficult for external rescue personnel to quickly break into the vehicle and carry out rescue without professional tools.

[0004] Based on the above problems, it is necessary to propose an emergency mechanical unlocking device that is independent of the vehicle system and can act autonomously, so as to open the door in an emergency to achieve the purpose of self-rescue and being rescued. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide an emergency unlocking device that is independent of the vehicle system and can operate autonomously, so as to open the door in an emergency, thereby achieving the purpose of self-rescue and being rescued. The specific technical solution is as follows: An emergency unlocking device can receive accusation information or obtain vehicle abnormality information and drive the vehicle's mechanical unlocking parts or door locks to unlock the vehicle doors in an emergency.

[0006] Furthermore, the emergency unlocking device includes: a positioning mechanism for positioning the emergency unlocking device at a position inside the vehicle body corresponding to the vehicle mechanical unlocking member; a driving mechanism, wherein a driving end of the driving mechanism is capable of contacting the vehicle mechanical unlocking member and driving the vehicle mechanical unlocking member to move; The control unit is used to receive accusation information or obtain abnormal information of the vehicle, and control the driving mechanism to drive the vehicle mechanical unlocking member.

[0007] Furthermore, the positioning mechanism includes a seat body, and the driving mechanism is connected to the seat body; The seat body can be fixed to the vehicle body so that the driving end of the driving mechanism contacts the vehicle mechanical unlocking member.

[0008] Furthermore, the driving mechanism includes a driving source, a transmission member and a trigger member, and the trigger member contacts the vehicle mechanical unlocking member; The driving source drives the transmission member to move, and the transmission member drives the trigger member to move to drive the vehicle mechanical unlocking member to move, thereby unlocking the vehicle.

[0009] Furthermore, the vehicle mechanical unlocking member is a pull rope; The driving source drives the transmission member to rotate, the trigger member is connected to the transmission member and rotates with the transmission member, the trigger member is a hook, the hook is hooked on the pull rope, and as the hook rotates, the hook can pull the pull rope until the car door is unlocked.

[0010] Furthermore, the driving source is a motor having an output shaft, and the portion of the output shaft close to the main body of the motor is defined as the proximal end of the output shaft, and the portion of the output shaft away from the main body of the motor is defined as the distal end of the output shaft; The transmission member includes a primary transmission member and a secondary transmission member; along the axial direction of the output shaft, the primary transmission member is sleeved on the distal end of the output shaft, and the secondary transmission member is sleeved on the proximal end of the output shaft; The primary transmission member includes a primary sun gear, a primary planetary carrier, a primary planetary gear mounted on the primary planetary carrier and meshing with the primary sun gear, and a primary inner ring gear meshing with the primary planetary gear; the distal end of the output shaft of the motor meshes with the primary sun gear, and the rotation of the output shaft of the motor drives the primary sun gear to rotate, the primary planetary gear to rotate and revolve, and the primary planetary carrier rotates around the axis of the output shaft of the motor; The secondary transmission member includes a secondary sun gear mounted on the primary planetary carrier, a secondary planetary carrier connected to the main body of the motor, a secondary planetary gear mounted on the secondary planetary carrier and meshing with the secondary sun gear, and a secondary inner ring gear meshing with the secondary planetary gear; the secondary sun gear rotates as the primary planetary carrier rotates, the secondary planetary gears rotate, and the secondary inner ring gear rotates; The pull hook is connected to the secondary inner gear ring and can hook and pull the pull rope as the secondary inner gear ring rotates.

[0011] Furthermore, the vehicle mechanical unlocking member is a wrench, and the movement direction of the wrench corresponding to unlocking the vehicle door is defined as the pulling direction; The driving source drives the transmission member to rotate along the pulling direction, the trigger member is connected to the transmission member and rotates with the transmission member, the trigger member is a push rod or a hook, and the trigger member can drive the wrench to move along the pulling direction until the car door is unlocked.

[0012] Furthermore, the driving source is a motor having an output shaft; The transmission member includes an output gear and a rack meshing with the output gear, the rack extends along the pulling direction, and the trigger member is relatively fixed to the rack; the output gear is connected to the output shaft of the motor, and the output shaft of the motor drives the output gear to rotate, and drives the rack and the trigger member to move along the pulling direction.

[0013] Furthermore, the emergency unlocking device includes: A vehicle door lock, comprising a door unlocking lever, an unlocking cord, and an unlocking cord fixing member; one end of the unlocking cord is connected to the door unlocking lever, and the other end of the unlocking cord is movable through the unlocking cord fixing member and connected to the vehicle mechanical unlocking member; movement of the vehicle mechanical unlocking member can drive the unlocking cord and the door unlocking lever to an unlocking position, thereby unlocking the vehicle door; or movement of the unlocking cord can drive the door unlocking lever to an unlocking position, thereby unlocking the vehicle door; a driving mechanism capable of driving the unlocking rope to move; The control unit is used to receive accusation information or obtain abnormal information of the vehicle, and control the driving mechanism to drive the unlocking rope.

[0014] Furthermore, the driving mechanism includes a driving source, a transmission member and a trigger member, and the trigger member is fixed to the unlocking rope; The driving source drives the transmission member to move toward the trigger member. After the transmission member contacts the trigger member, the transmission member continues to move to drive the trigger member and the unlocking rope to move, thereby unlocking the vehicle.

[0015] Furthermore, the driving source is a motor, the transmission member includes an output gear and a rack meshed with the output shaft, and the trigger member is a push plate; The direction in which the unlocking rope pulls the door unlocking rod to the unlocking position is defined as the unlocking direction of the unlocking rope; the output gear is connected to the output end of the motor, and the rack extends along the unlocking direction of the unlocking rope; the push plate is fixed to the unlocking rope, and along the unlocking direction of the unlocking rope, the push plate is arranged on the side of the rack close to the vehicle mechanical unlocking component.

[0016] Furthermore, the control unit includes an accusation information acquisition module, which is used to receive and determine the accusation information to drive the vehicle mechanical unlocking member or door lock to move; and / or The control unit includes a vehicle information acquisition module, which is used to acquire vehicle information and determine the vehicle status to drive the drive mechanism to drive the vehicle mechanical unlocking part to move or drive the door lock to move; the vehicle information includes at least one of the vehicle power status, vehicle internal temperature, vehicle temperature change rate, vehicle movement status, vehicle acceleration information, vehicle vibration information, and flame information.

[0017] Furthermore, the emergency unlocking device also includes a flame sensor, which is used to detect flame information. The flame sensor is communicatively connected to the control unit. The control unit obtains the flame information through the flame sensor and determines whether to control the drive mechanism to operate.

[0018] Furthermore, the emergency unlocking device includes a power supply module, and the control unit is connected to the power supply interface of the vehicle through the power supply module; and / or An energy storage module is capable of storing electrical energy and supplying power to the control unit and the driving mechanism.

[0019] Furthermore, the emergency unlocking device further comprises a housing, wherein the driving mechanism and the control unit are arranged in the housing; and / or Also includes a blocking button, the blocking button is used to block the vehicle mechanical unlocking member or the door lock from performing an action; and / or It also includes an audio-visual warning module, which is communicatively connected to the control unit. When the control unit controls the driving mechanism to drive, the audio-visual warning module sends an audio-visual warning signal.

[0020] The emergency unlocking device provided by this application is independent of the vehicle system and can perform emergency unlocking of the vehicle door in a normal duty manner without human operation. When the vehicle is in an accident and escape or external rescue is required, the biggest obstacle to self-rescue or being rescued by locking the door can be removed by automatically completing the unlocking action, thereby increasing the chance of accidental survival of the occupants in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the emergency unlocking device and the pull rope assembly of this embodiment; Figure 2 This is a schematic diagram of the structure of the emergency unlocking device and the pull rope assembly of this embodiment (the driving mechanism is not shown); Figure 32 is a schematic diagram of the overall structure of the driving mechanism of the emergency unlocking device of this embodiment; Figure 4 Schematic diagram of the structure of the motor and the primary transmission member of the driving mechanism of the emergency unlocking device of this embodiment; Figure 5 Schematic diagram of the assembly structure of the motor, primary transmission member, and secondary transmission member of the driving mechanism of the emergency unlocking device of this embodiment (the primary and secondary outer ring gears are hidden); Figure 6 Schematic diagram of the assembly structure of the motor, primary transmission member, and secondary transmission member of the driving mechanism of the emergency unlocking device of this embodiment (the primary sun gear is hidden); Figure 7 This is a schematic diagram of the overall structure of the emergency unlocking device and the pull rope assembly of this embodiment; Figure 8 Schematic diagram of the overall structure of the emergency unlocking device and the pull rope assembly of this embodiment (showing the housing, blocking button, and flame sensor); Figure 9 This is a structural diagram of the assembly of the emergency unlocking device and the wrench of this embodiment; Figure 10 This is a schematic structural diagram of the emergency unlocking device wrench of this embodiment; Figure 11 1 is a schematic diagram of the overall structure of the emergency unlocking device and the wrench assembly of this embodiment (showing the housing and flame sensor); Figure 12 is a schematic structural diagram of the emergency unlocking device and the wrench of this embodiment from another perspective; Figure 13 It is a structural diagram of a car door lock in the prior art; Figure 14 1 is a schematic structural diagram of an emergency unlocking device including a vehicle door lock according to this embodiment; Figure 15 1 is a schematic structural diagram of the emergency unlocking device of the vehicle door lock in the embodiment in normal state; Figure 16 Schematic diagram of the internal structure position relationship of the emergency unlocking device of the vehicle door lock in this embodiment under normal conditions; Figure 17 1 is a schematic structural diagram of the emergency unlocking device of the vehicle door lock according to the embodiment when the emergency unlocking is triggered; Figure 18 Schematic diagram of the internal structure position relationship of the emergency unlocking device including the door lock of this embodiment when the emergency unlocking is triggered; Figure 19 1 is a schematic structural diagram of the emergency unlocking device of the vehicle door lock according to the embodiment during manual emergency unlocking; Figure 20Schematic diagram of the internal structure position relationship of the emergency unlocking device of the vehicle door lock in this embodiment during manual emergency unlocking.

[0022] icon: 1- seat body; 11- buckle; 2-driving mechanism; 21-primary transmission element; 211-primary sun gear; 212-primary planetary carrier; 213-primary planetary gear; 214-primary inner ring gear; 22-secondary transmission element; 221-secondary sun gear; 222-secondary planetary carrier; 223-secondary planetary gear; 224-secondary inner ring gear; 23-motor; 231-output shaft; 24-retractor hook; 25-output gear; 26-rack; 27-sector positioning plate; 28-push rod; 31-pull rope; 32-wrench; 4-door lock; 41-door unlocking lever; 42-unlocking rope; 43-unlocking rope fixing; 5-driving mechanism; 51-motor; 52-output gear; 53-rack; 54-push plate; 6-flame sensor; 7-housing; 8-blocking button; 9-sound and light warning module; 10-connector. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0024] An embodiment of the present application provides an emergency unlocking device that can receive accusation information or obtain vehicle abnormality information and drive the vehicle's mechanical unlocking parts or door locks to unlock the vehicle doors in an emergency.

[0025] The emergency unlocking device of the embodiment of the present application can unlock the vehicle door by driving the vehicle's mechanical unlocking part or can unlock the vehicle door by directly driving the door lock. Among them, the vehicle's mechanical unlocking part is an existing structural component on existing trams, which includes a pull rope structure and a wrench structure. The door can be unlocked by pulling the pull rope structure or pulling the wrench structure. The emergency unlocking device of this embodiment that drives the vehicle's mechanical unlocking part does not change the existing door lock and can be installed on the inside of the vehicle body, and corresponds to the position of the vehicle's mechanical unlocking part to drive the vehicle's mechanical unlocking part to move. The emergency unlocking device of this embodiment that directly drives the door lock to move makes changes to the existing door lock and drives the unlocking rope and the door unlocking lever inside the door lock to unlock the door. The following will be combined with Figures 1 to 20 The specific structure and working principle of the emergency unlocking device with different driving principles of this embodiment are specifically described.

[0026] For the solution in which the emergency unlocking device drives the vehicle's mechanical unlocking part to unlock the vehicle door, the emergency unlocking device includes a positioning mechanism, a driving mechanism 2 and a control unit, wherein the positioning mechanism is used to position the emergency unlocking device in the vehicle body and corresponds to the position of the vehicle's mechanical unlocking part, the driving mechanism 2 is used to drive the vehicle's mechanical unlocking part to move, and the control unit is used to receive accusation information or obtain vehicle abnormality information, and control the driving mechanism 2 to drive the vehicle's mechanical unlocking part.

[0027] Specifically, if Figure 1 and Figure 2 As shown, the positioning mechanism includes a base 1 that can be fixed to the vehicle body and provides support and positioning for the drive mechanism 2, allowing the driving end of the drive mechanism 2 to contact the vehicle's mechanical unlocking member. Conventional vehicles typically have a slot corresponding to the pull cord 31. The base 1 of this embodiment can be assembled in the vehicle's existing slot using a buckle 11 or interference fit. The pull cord 31 extends from the slot and corresponds to the driving end of the drive mechanism 2.

[0028] The driving mechanism includes a driving source, a transmission member and a trigger member. The driving source drives the transmission member to move, the transmission member drives the trigger member to move, and the trigger member drives the vehicle mechanical unlocking member to move to unlock the vehicle.

[0029] like Figures 3 to 6As shown, when the vehicle's mechanical unlocking element is a pull cord 31, the trigger element is a hook 24. The hook 24 is hooked to the pull cord 31. As the hook 24 rotates, it pulls the pull cord 31 until the door is unlocked. Specifically, the drive source can be a motor 23, which has an output shaft 231. The portion of the output shaft 231 close to the main body of the motor 23 is defined as the proximal end of the output shaft 231, and the portion of the output shaft 231 away from the main body of the motor 23 is defined as the distal end of the output shaft 231. The transmission element includes a primary transmission element 21 and a secondary transmission element 22. Along the axial direction of the output shaft 231, the primary transmission element 21 is sleeved on the distal end of the output shaft 231, and the secondary transmission element 22 is sleeved on the proximal end of the output shaft 231. The primary transmission member 21 includes a primary sun gear 211, a primary planetary carrier 212, a primary planetary gear 213 mounted on the primary planetary carrier 212 and meshing with the primary sun gear 211, and a primary inner ring gear 214 meshing with the primary planetary gear 213. The distal end of the output shaft 231 of the motor 23 meshes with the primary sun gear 211. The output shaft 231 of the motor 23 rotates to drive the primary sun gear 211 to rotate, the primary planetary gear 213 to rotate and revolve, and the primary planetary carrier 212 rotates about the axis of the output shaft 231 of the motor 23. The secondary transmission element 22 includes a secondary sun gear 221 mounted on the primary planetary carrier 212, a secondary planetary carrier 222 connected to and stationary relative to the main body of the motor 23, a secondary planetary gear 223 mounted on the secondary planetary carrier 222 and meshing with the secondary sun gear 221, and a secondary ring gear 224 meshing with the secondary planetary gear 223. The secondary sun gear 221 rotates as the primary planetary carrier 212 rotates, while the secondary planetary carrier 222 remains stationary. The secondary planetary gear 223 rotates, and the secondary ring gear 224 rotates. The hook 24 is connected to the outside of the secondary ring gear 224. As the secondary ring gear 224 rotates, it drives the hook 24 to rotate, thereby hooking and pulling the drawstring 31. When the drawstring 31 is pulled to a certain extent by the hook 24, the vehicle door is unlocked.

[0030] The drive mechanism 2 of the present application adopts the principle of planetary reduction, while conventional planetary reducers adopt the "series + shaft-in, shaft-out" method, where the input shaft and output shaft are on either side of the reducer, and the output shaft is at one end of the entire system. This traditional design makes the radial load at the output end have the largest lever arm in the overall system, which is detrimental to the rigidity of the system. It also maximizes the axial length of the adapter component when the load is applied to the system, which is easily limited in narrow spaces. In addition, the "shaft-out" method requires the adapter to be drawn out from the shaft end when the load requires a certain stroke, which increases the complexity of the system and the imbalance of the resistance torque.

[0031] The driving mechanism 2 of this solution improves the above problems by means of a "return type outer rotor planetary reducer". The driving mechanism 2 of this embodiment makes the power return by means of a "return type power flow" design. Figure 4As shown, the power input by the motor 23 is first pushed to the far-end primary sun gear 211. The primary inner gear ring 214 is fixed. Driven by the primary sun gear 211, the primary planetary gear 213 makes a circular motion around the sun gear inside the primary inner gear ring 214. The primary planetary carrier 212 rotates at a reduced speed under the drive of the primary planetary gear 213, and the secondary sun gear 221 integrated with the primary planetary carrier 212 rotates at a reduced speed synchronously. The secondary sun gear 221 can drive the secondary planetary gear 223 to rotate, and the secondary planetary carrier 222 is fixed. Therefore, the secondary planetary gear 223 only rotates on its own and does not revolve around the sun. Figure 5 The secondary planetary gear 223 rotates on its own, which can drive the secondary inner ring gear 224 to rotate in the same direction at a reduced speed, as shown in FIG. Figure 6 As shown, the draw hook 24 connected to the secondary inner gear ring 224 can pull the load at a low speed and a large torque.

[0032] like Figure 6 As shown, the draw hook 24 is located outside the secondary inner gear ring 224 , and the draw hook 24 can be fixedly connected to the secondary inner gear ring 224 or formed into an integral structure.

[0033] Of course, the specific structure of the above-mentioned driving mechanism 2 is a better structural implementation method of this scheme. Based on the principle of hooking and pulling the pull rope 31, this scheme can also adopt other driving mechanisms 2 such as other gear set transmission mechanisms, connecting rod mechanisms, etc. As long as the pulling effect on the pull rope 31 can be achieved, it is within the conceptual protection scope of this scheme.

[0034] like Figures 9 to 12As shown, when the vehicle's mechanical unlocking member is a wrench 32, the trigger member can be a push rod 28 or a hook. Pushing the wrench 32 by the push rod 28 or pulling the wrench 32 by the hook until the wrench 32 is raised to a certain degree, unlocking the vehicle door. Specifically, when the vehicle's mechanical unlocking member is a wrench 32, the direction of movement of the wrench 32 corresponding to door unlocking is defined as the pulling direction. The driving source drives the transmission member to rotate in the pulling direction, and the trigger member is connected to the transmission member and rotates with the transmission member. The trigger member is a push rod 28 or a hook, and can drive the wrench 32 to move in the pulling direction until the vehicle door is unlocked. The drive source may be a motor 23 having an output shaft 231. The transmission member may include an output gear 25 and a rack 26 meshing with the output shaft 231. The rack 26 extends in the direction of movement, and the trigger member is fixed relative to the rack 26. The output gear 25 is connected to the output shaft 231 of the motor 23. The output shaft 231 of the motor 23 drives the output gear 25 to rotate, thereby driving the rack 26 and the trigger member to move in the direction of movement. It should be noted that the direction of movement of the wrench 32 is an arc, so the rack 26 in this embodiment is also an arc-shaped rack. The positioning mechanism can be a positioning seat, which can be fixed to the upper position of the corresponding wrench 32 on the vehicle body by means of an assembly structure or adhesive. The positioning mechanism provides support and installation positions for structures such as the drive mechanism 2 and the control unit. The motor 23 is fixed to the positioning mechanism, and its output end is connected to the rack 26 through the output gear 25. The rack 26 is formed on a fan-shaped positioning plate 27. The rack 26 is arranged along the circumference of the fan-shaped positioning plate 27. A rotating shaft (not shown in the figure) can be set at the circular part of the fan-shaped positioning plate 27. When the rack 26 is driven by the gear, the fan-shaped positioning plate 27 can rotate with the rotating shaft as the axis (such as Figure 9 and Figure 10 As shown). The back of the fan-shaped positioning plate 27 (the side without the rack 26) can contact the vertical plate of the vehicle body. The support of the vertical plate of the vehicle body enables the fan-shaped positioning plate 27 to maintain a stable position and achieve rotation. The trigger is set on the fan-shaped positioning plate 27. When the trigger is a push rod 28, as shown Figure 9 As shown, in the initial position (corresponding to the normal state of the wrench 32), the push rod 28 is located below the wrench 32; Figure 10 As shown, as rack 26 rotates, sector-shaped positioning plate 27 rotates, driving push rod 28 to push lever 32 in the pulling direction, thereby unlocking the vehicle door. If the trigger member is a hook (not shown), the hook is stably mounted on the end of the lever. As the rack rotates, the sector-shaped positioning plate rotates, driving the hook to pull the lever in the pulling direction, thereby unlocking the vehicle door.

[0035] The control unit of the embodiment of the present application includes a charge information acquisition module, which is used to receive and judge charge information to drive the movement of the vehicle's mechanical unlocking member. The charge information acquisition module can receive one or more control signals, including those from Bluetooth signals, network signals, voice control signals, control buttons, etc., and judge whether the control signal is to activate the vehicle's mechanical unlocking member. If so, it controls the drive mechanism to execute the action of the vehicle's mechanical unlocking member, operating the vehicle's mechanical unlocking member by pulling or pulling, thereby realizing digital control of the vehicle's emergency door unlocking. At the same time, through diversified judgment logic, it can avoid unlocking at inappropriate times.

[0036] In addition, the control unit also includes a vehicle information acquisition module, which is used to acquire vehicle information and determine the vehicle status to control the drive mechanism to drive the vehicle mechanical unlocking part to move; the vehicle information includes at least one of the vehicle power status, vehicle internal temperature, vehicle movement status, vehicle acceleration information, vehicle vibration information, and flame information. When the vehicle power is cut off, the vehicle internal temperature exceeds a reasonable temperature, the vehicle temperature change rate exceeds a reasonable rate, the vehicle acceleration exceeds a reasonable range, the vehicle vibrates due to a collision, or the vehicle detects a flame signal or a thick smoke signal, the vehicle information acquisition module integrates the above multiple information and combines it with the vehicle operation status (i.e., whether the vehicle is in a high-speed driving state, a low-speed driving state, or a stopped state) to determine whether the current state is an emergency and whether the current safety unlocking conditions are met (for example, the vehicle is in a stopped state or the vehicle speed is less than 5 km / h). When it is determined that the state is an emergency and the safety unlocking conditions are met, the drive mechanism is controlled to drive the vehicle mechanical unlocking part to move, thereby realizing digital control of emergency unlocking of the car door. For example, if the vehicle information acquisition module detects through sensors that the vehicle's internal temperature exceeds a reasonable value or that the vehicle's temperature change rate exceeds a reasonable value, indicating an abnormality within the vehicle, and the vehicle is simultaneously at a low speed (e.g., less than 5 km / h) or stopped, unlocking the door poses no risk to the occupants. The control unit then determines that the vehicle is in an emergency state and that safe unlocking conditions are met. It controls the drive mechanism to activate the vehicle's mechanical unlocking element, achieving emergency unlocking of the door, facilitating rapid escape of the occupants or emergency assistance to those outside. For another example, if the vehicle information acquisition module detects through sensors that the vehicle is experiencing collision vibration or flames within the vehicle, indicating an abnormality within the vehicle, and the vehicle is simultaneously at a high speed (e.g., greater than 5 km / h), unlocking the door poses a risk to the occupants. The control unit then determines that the vehicle is in an emergency but not safe unlocking state. The sensors monitor vehicle-connected information in real time. If the vehicle is detected to be at a low speed (e.g., less than 5 km / h), the control unit controls the drive mechanism to immediately activate the vehicle's mechanical unlocking element, achieving emergency unlocking of the door, facilitating rapid escape of the occupants or emergency assistance to those outside. That is, the vehicle information acquisition module of this embodiment will obtain whether the vehicle is at a safe driving speed, and when determining whether to unlock the vehicle, it will give priority to the safe driving speed information over other parameters to ensure that unlocking the door will not cause greater danger to the people in the car.

[0037] As a feasible approach, Figure 8 and Figure 11As shown, the emergency unlocking device of the embodiment of the present application includes a flame sensor 6, which is communicatively connected to the control unit. The control unit obtains information from the flame sensor 6. When the flame sensor 6 detects flame information, the control unit obtains the flame information and determines that the current state is an emergency. The vehicle speed is detected to be at a safe driving speed (less than or equal to 5km / h) at this time. It is comprehensively determined that this is an emergency and safe unlocking state. The control unit controls the drive mechanism 2 to drive the vehicle mechanical unlocking part to move, thereby realizing emergency unlocking of the car door.

[0038] like Figure 7 and Figure 8 as well as Figure 11 As shown, the emergency unlocking device of this embodiment can be connected to the vehicle's power supply interface through a power supply module such as a line and connector 10, so that the emergency unlocking device of this solution can be powered through the vehicle's power supply interface. In addition, to ensure that the emergency unlocking device of this embodiment can still operate normally when the vehicle loses power in an emergency, the emergency unlocking device also includes an energy storage module, specifically an energy storage battery, which can store electrical energy and supply power to the control unit and drive mechanism 2. Through the coordinated configuration of the power supply module and the energy storage module, the emergency unlocking device of this embodiment is always in an activatable state and is on normal duty. Damage to the vehicle's electronic equipment will not affect the operation of this emergency unlocking device. In addition, the emergency unlocking device of this embodiment can also have a built-in self-generating device such as solar energy or shaking power generation. When it is inconvenient to set up a power supply, it can be powered by light inside the vehicle or the kinetic energy of the vehicle's movement.

[0039] like Figure 8 and Figure 11 As shown, the flame sensor 6 can be installed on the circuit of the power module, allowing for greater flexibility in positioning. When the main body of the emergency unlocking device of this embodiment is installed in an obstructed position, its placement on this external circuit facilitates the flame sensor's detection of the window and the interior of the vehicle, allowing for timely identification of flames. Furthermore, the flame sensor 6 can be secured to the vehicle body using a fixing clip or other structure, making its placement more flexible and stable.

[0040] In addition, if Figure 7 and Figure 11As shown, the emergency unlocking device of this embodiment also includes a housing 7, and the control unit, the power module and the motor 23 of the drive mechanism 2 are all arranged in the housing 7, and the housing 7 is fixedly connected to the positioning mechanism, so that the product structure is more centralized, more conducive to miniaturization, and convenient for positioning and installation on the vehicle body. The housing 7 can be provided with a charging interface, through which the energy storage module is charged, etc. In addition, the emergency unlocking device of this embodiment is also provided with a blocking button 8, which is used to quickly block the unlocking manually when the control unit misjudges or triggers the unlocking manually. The blocking button 8 can achieve rapid blocking by controlling whether the drive mechanism 2 or the control unit is powered on, etc., to avoid unlocking the door at an inappropriate time. The blocking button 8 can be provided in the housing 7 and electrically connected to the drive mechanism 2 or the control unit.

[0041] In addition, the emergency unlocking device of this embodiment also includes an audio-visual alarm module, which can be integrated into the above-mentioned blocking button 8. The audio-visual warning module 9 is communicatively connected with the control unit. When the control unit determines that an emergency state has occurred, and before controlling the driving mechanism 2 to execute the drive, the audio-visual warning module 9 sends an audio-visual warning signal to more directly give the occupants of the vehicle a door unlocking prompt.

[0042] In addition, the above-mentioned emergency unlocking device can select corresponding structures according to the vehicle mechanical unlocking parts of the doors of different vehicles, and the number and position of the emergency unlocking device can be selectively set according to the number and position of the doors. Preferably, an emergency unlocking device is set for the vehicle mechanical unlocking parts of each door of the vehicle, and multiple emergency unlocking devices work independently, and multiple emergency unlocking devices can also communicate and cooperate.

[0043] In summary, the emergency unlocking device in the above-described embodiment can perform emergency unlocking of vehicle doors in a normal on-duty manner, without manual operation. In the event of a vehicle accident requiring escape or external rescue, this automatic unlocking action eliminates the greatest obstacle to self-rescue or rescue, thus increasing the chances of survival for vehicle occupants. Furthermore, the emergency unlocking device in this solution only replaces manual operation and does not modify the vehicle's existing unlocking mechanism, thus preventing increased failure rates and introducing no new risks.

[0044] The emergency unlocking device provided in the embodiment of the present application can also be used as a vehicle door lock and installed inside the vehicle door. It can receive accusation information or obtain vehicle abnormality information and perform unlocking actions to unlock the vehicle door in an emergency.

[0045] like Figures 13 to 20 As shown, the emergency unlocking device of this embodiment includes a door lock 4, a drive mechanism 5 and a control unit.

[0046] Specifically, if Figure 13As shown, the vehicle door lock 4 includes a door unlocking lever 41, an unlocking cord 42, and an unlocking cord fixture 43. One end of the unlocking cord 42 is connected to the door unlocking lever 41, while the other end of the unlocking cord 42 is movable through the unlocking cord fixture 43 (the unlocking cord 42 can move relative to the unlocking cord fixture 43) and is connected to the vehicle's mechanical unlocking member (a pull cord or a wrench). Pulling or pulling the vehicle's mechanical unlocking member drives the unlocking cord 42 and the door unlocking lever 41 to the unlocked position (corresponding to their positions when the door is unlocked), thereby unlocking the vehicle door. Alternatively, directly driving the unlocking cord 42 (via the drive mechanism 5 described below) can also drive the door unlocking lever 41 to the unlocked position, thereby unlocking the vehicle door. In this embodiment, the vehicle door lock 4 can trigger emergency unlocking directly by driving the unlocking cord 42, or manually by pulling or pulling the vehicle's mechanical unlocking member to achieve manual emergency unlocking.

[0047] like Figure 14 As shown, the drive mechanism 5 can drive the unlocking rope 42 to move. The drive mechanism 5 includes a drive source, a transmission member, and a trigger member. The trigger member is fixed to the unlocking rope 42. The drive source drives the transmission member toward the trigger member. After the transmission member contacts the trigger member, the transmission member continues to move, driving the trigger member and the unlocking rope 42 to move, thereby unlocking the vehicle.

[0048] Specifically, if Figure 15 and Figure 16 As shown, the driving source can be a motor 51, the transmission member includes an output gear 52 and a rack 53 meshing with the output shaft, and the trigger member can be a push plate 54 fixed to the unlocking rope 42. The direction in which the unlocking rope 42 pulls the door unlocking lever 41 to the unlocking position is defined as the unlocking direction of the unlocking rope 42; the output gear 52 is connected to the output end of the motor 51, and the rack 53 extends along the unlocking direction of the unlocking rope 42; the push plate 54 is fixed to the unlocking rope 42, and along the unlocking direction of the unlocking rope 42, the push plate 54 is arranged on the side of the rack 53 close to the vehicle mechanical unlocking member. In normal state (non-emergency state), the driving mechanism 5 is not started, and the structure of the emergency unlocking device and the internal position relationship of the driving mechanism 5 are shown as follows. Figure 15 and Figure 16 As shown; when the emergency state is triggered, the motor 51 is started, and the gear rotation drives the rack 53 to move toward the push plate 54 until it contacts the push plate 54. The gear continues to move through the push plate 54 to drive the unlocking rope 42 to move. The unlocking rope 42 pulls the door unlocking lever 41 to rotate to the unlocking position, thereby realizing the emergency unlocking of the door. In this state, the structure of the emergency unlocking device and the internal position relationship of the driving mechanism 5 are shown as follows. Figure 17 and Figure 18In manual emergency unlocking, the motor 51 is not started. By pulling or pulling the vehicle emergency unlocking part, the unlocking rope 42 and the door unlocking lever 41 are driven to the unlocking position, thereby realizing the door emergency unlocking. In this state, the structure of the emergency unlocking device and the internal position relationship of the driving mechanism 5 are shown as follows: Figure 19 and Figure 20 shown.

[0049] It should be noted that the emergency unlocking device of this embodiment can unlock the door by driving the unlocking rope 42 to move and then driving the door unlocking rod 41 to move. The structure of the door unlocking rod 41 and its unlocking principle are consistent with the structure and unlocking principle of the existing door lock 4, so its specific structure and unlocking principle will not be repeated here.

[0050] The control unit is configured to receive accusation information or obtain information about vehicle anomalies and control the drive mechanism to activate the unlocking rope. Similar to the control principle of the aforementioned emergency unlocking device in which the drive mechanism directly drives the vehicle's mechanical unlocking member, the control unit in the embodiment of the present application includes an accusation information acquisition module, which is configured to receive and determine accusation information to control whether the drive mechanism activates the unlocking rope. The accusation information acquisition module is capable of receiving one or more control signals, including those from Bluetooth signals, network signals, voice control signals, control buttons, and the like, and determining whether the control signal initiates activation of the unlocking rope. If so, the control mechanism is controlled to activate the unlocking rope to achieve emergency unlocking of the vehicle door.

[0051] In addition, the control unit of the embodiment of the present application also includes a vehicle information acquisition module, which is used to acquire vehicle information and determine the vehicle status to control the drive mechanism to drive the release rope. The vehicle information includes at least one of the following: vehicle power status, vehicle internal temperature, vehicle motion status information, vehicle acceleration information, vehicle vibration information, and flame information. In the event of a vehicle power outage, vehicle internal temperature exceeding a reasonable temperature, vehicle acceleration exceeding a reasonable range, vehicle vibration caused by a collision, or vehicle detection of flame or heavy smoke signals, the vehicle information acquisition module combines the above information to determine whether the current state is an emergency. If an emergency is determined, the control unit controls the drive mechanism to drive the release rope to achieve digital control of the vehicle door emergency unlocking. At the same time, through diversified judgment logic, unlocking at inappropriate times (such as when the vehicle is driving at high speed or falling) can be avoided. The specific unlocking control logic is the same as the solution of unlocking by driving the vehicle's mechanical unlocking member in the above embodiment, and will not be repeated here. The above unlocking control logic is also applicable to the emergency unlocking device of this embodiment.

[0052] As a feasible method, the emergency unlocking device of the embodiment of the present application includes a flame sensor, which is communicatively connected to the control unit. The control unit obtains information from the flame sensor. When the flame sensor detects flame information, the control unit obtains the flame information and determines that the current state is an emergency. At the same time, the vehicle speed is detected to be at a safe driving speed (less than or equal to 5km / h). It is comprehensively determined that the current state is an emergency and safe unlocking state. The control unit controls the driving mechanism to drive the unlocking rope to move, thereby realizing emergency unlocking of the car door.

[0053] The emergency unlocking device of this embodiment can be connected to the power supply interface of the vehicle through a power supply module such as a line, so as to supply power to the emergency unlocking device of this solution through the power supply interface of the vehicle. In addition, in order to ensure that the emergency unlocking device of this embodiment can still work normally when the vehicle loses power in an emergency, the emergency unlocking device also includes an energy storage module, which can be a storage battery, which can store electrical energy and supply power to the control unit and the drive mechanism. Through the coordinated arrangement of the power supply module and the energy storage module, the emergency unlocking device of this embodiment is ensured to be in a startable state at all times and is on normal duty. Damage to the vehicle's electronics will not affect the operation of this emergency unlocking device.

[0054] In addition, the emergency unlocking device of this embodiment also includes a shell, and the control unit, power module and motor part of the drive mechanism are all arranged in the shell, and the shell is fixedly connected to other structural parts of the vehicle door lock, making the product structure more compact and easy to install in the vehicle door.

[0055] In summary, the emergency unlocking device of this embodiment can not only be installed directly inside the vehicle door at the factory and function as a normal vehicle door lock, but also has both automatic and manual emergency unlocking modes. While retaining the manual emergency unlocking mode, it can also automatically unlock the vehicle door in a normal on-duty manner without human intervention. In the event of a vehicle accident requiring escape or external rescue, the automatic unlocking action eliminates the biggest obstacle to self-rescue or rescue by locking the door, thereby increasing the chances of survival for the vehicle occupants.

[0056] The principles and implementation methods of the present invention have been described above using specific examples. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. An emergency unlocking device, characterized in that: The emergency unlocking device can receive accusation information or obtain vehicle abnormality information and drive the vehicle mechanical unlocking member or door lock to unlock the vehicle door in an emergency.

2. The emergency unlocking device according to claim 1, characterized in that: The emergency unlocking device comprises: a positioning mechanism for positioning the emergency unlocking device at a position inside the vehicle body corresponding to the vehicle mechanical unlocking member; a driving mechanism, wherein a driving end of the driving mechanism is capable of contacting the vehicle mechanical unlocking member and driving the vehicle mechanical unlocking member to move; The control unit is used to receive accusation information or obtain abnormal information of the vehicle, and control the driving mechanism to drive the vehicle mechanical unlocking member.

3. The emergency unlocking device according to claim 2, characterized in that: The positioning mechanism includes a seat body, and the driving mechanism is connected to the seat body; The seat body can be fixed to the vehicle body so that the driving end of the driving mechanism contacts the vehicle mechanical unlocking member.

4. The emergency unlocking device according to claim 3, characterized in that: The driving mechanism includes a driving source, a transmission member and a trigger member, wherein the trigger member contacts the vehicle mechanical unlocking member; The driving source drives the transmission member to move, and the transmission member drives the trigger member to move to drive the vehicle mechanical unlocking member to move, thereby unlocking the vehicle.

5. The emergency unlocking device according to claim 4, characterized in that: The vehicle mechanical unlocking member is a pull rope; The driving source drives the transmission member to rotate, the trigger member is connected to the transmission member and rotates with the transmission member, the trigger member is a hook, the hook is hooked on the pull rope, and as the hook rotates, the hook can pull the pull rope until the car door is unlocked.

6. The emergency unlocking device according to claim 5, characterized in that: The driving source is a motor having an output shaft, wherein a portion of the output shaft close to the main body of the motor is defined as a proximal end of the output shaft, and a portion of the output shaft away from the main body of the motor is defined as a distal end of the output shaft; The transmission member includes a primary transmission member and a secondary transmission member; along the axial direction of the output shaft, the primary transmission member is sleeved on the distal end of the output shaft, and the secondary transmission member is sleeved on the proximal end of the output shaft; The primary transmission member includes a primary sun gear, a primary planetary carrier, a primary planetary gear mounted on the primary planetary carrier and meshing with the primary sun gear, and a primary inner ring gear meshing with the primary planetary gear; the distal end of the output shaft of the motor meshes with the primary sun gear, and the rotation of the output shaft of the motor drives the primary sun gear to rotate, the primary planetary gear to rotate and revolve, and the primary planetary carrier rotates around the axis of the output shaft of the motor; The secondary transmission member includes a secondary sun gear mounted on the primary planetary carrier, a secondary planetary carrier connected to the main body of the motor, a secondary planetary gear mounted on the secondary planetary carrier and meshing with the secondary sun gear, and a secondary inner ring gear meshing with the secondary planetary gear; the secondary sun gear rotates as the primary planetary carrier rotates, the secondary planetary gears rotate, and the secondary inner ring gear rotates; The pull hook is connected to the secondary inner gear ring and can hook and pull the pull rope as the secondary inner gear ring rotates.

7. The emergency unlocking device according to claim 4, characterized in that: The vehicle mechanical unlocking member is a wrench, and the movement direction of the wrench corresponding to unlocking the vehicle door is defined as the pulling direction; The driving source drives the transmission member to rotate along the pulling direction, the trigger member is connected to the transmission member and rotates with the transmission member, the trigger member is a push rod or a hook, and the trigger member can drive the wrench to move along the pulling direction until the car door is unlocked.

8. The emergency unlocking device according to claim 7, characterized in that: The driving source is a motor having an output shaft; The transmission member includes an output gear and a rack meshed with the output shaft, the rack extends along the pulling direction, and the trigger member is relatively fixed to the rack; the output gear is connected to the output shaft of the motor, and the output shaft of the motor drives the output gear to rotate, and drives the rack and the trigger member to move along the pulling direction.

9. The emergency unlocking device according to claim 1, characterized in that: The emergency unlocking device comprises: A vehicle door lock, comprising a door unlocking lever, an unlocking cord, and an unlocking cord fixing member; one end of the unlocking cord is connected to the door unlocking lever, and the other end of the unlocking cord is movable through the unlocking cord fixing member and connected to the vehicle mechanical unlocking member; movement of the vehicle mechanical unlocking member can drive the unlocking cord and the door unlocking lever to an unlocking position, thereby unlocking the vehicle door; or movement of the unlocking cord can drive the door unlocking lever to an unlocking position, thereby unlocking the vehicle door; a driving mechanism capable of driving the unlocking rope to move; The control unit is used to receive accusation information or obtain abnormal information of the vehicle, and control the driving mechanism to drive the unlocking rope.

10. The emergency unlocking device according to claim 9, characterized in that: The driving mechanism includes a driving source, a transmission member and a trigger member, and the trigger member is fixed to the unlocking rope; The driving source drives the transmission member to move toward the trigger member. After the transmission member contacts the trigger member, the transmission member continues to move to drive the trigger member and the unlocking rope to move, thereby unlocking the vehicle.

11. The emergency unlocking device according to claim 10, characterized in that: The driving source is a motor, the transmission member includes an output gear and a rack meshing with the output gear, and the trigger member is a push plate; The direction in which the unlocking rope pulls the door unlocking lever to the unlocking position is defined as the unlocking direction of the unlocking rope; The output gear is connected to the output end of the motor, and the rack extends along the unlocking direction of the unlocking rope; The push plate is fixed to the unlocking rope and is arranged on a side of the rack close to the vehicle mechanical unlocking member along the unlocking direction of the unlocking rope.

12. The emergency unlocking device according to claim 2 or 9, characterized in that: The control unit includes an accusation information acquisition module, which is used to receive and determine accusation information to drive the vehicle mechanical unlocking member or door lock to move; and / or The control unit includes a vehicle information acquisition module, which is used to acquire vehicle information and determine the vehicle status to drive the drive mechanism to drive the vehicle mechanical unlocking part to move or drive the door lock to move; the vehicle information includes at least one of the vehicle power status, vehicle internal temperature, vehicle temperature change rate, vehicle movement status, vehicle acceleration information, vehicle vibration information, and flame information.

13. The emergency unlocking device according to claim 2 or 9, characterized in that: The emergency unlocking device further includes a flame sensor, which is used to detect flame information. The flame sensor is communicatively connected to the control unit. The control unit obtains the flame information through the flame sensor and determines whether to control the drive mechanism to operate.

14. The emergency unlocking device according to claim 2 or 9, characterized in that: The emergency unlocking device includes a power supply module, and the control unit is connected to the power supply interface of the vehicle through the power supply module; and / or An energy storage module is capable of storing electrical energy and supplying power to the control unit and the driving mechanism.

15. The emergency unlocking device according to claim 2 or 9, characterized in that: It also includes a housing, wherein the driving mechanism and the control unit are disposed within the housing; and / or Also includes a blocking button, the blocking button is used to block the vehicle mechanical unlocking member or the door lock from performing an action; and / or It also includes an audio-visual warning module, which is communicatively connected to the control unit. When the control unit controls the driving mechanism to drive, the audio-visual warning module sends an audio-visual warning signal.

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