Automatic unlocking device for door handle of new energy automobile

Abstract

The utility model provides an automatic unlocking device of a new energy automobile door handle, which comprises a bottom shell and a piston, the bottom shell is welded on the outer surface of an automobile battery, and the piston moves up and down in the bottom shell; the push rod is vertically arranged above the lever, the lever is fixed on the push rod chassis through a lever fulcrum, one end of the lever is connected with the top end of the piston, and the other end of the lever is in contact with the bottom end of the push rod; by sensing the temperature of a vehicle battery and utilizing the characteristic that thermal expansion gas can expand quickly after being heated, the lever mechanism is pushed to operate, so that the spring force which is always tightened and compressed is released, and the spring force pushes the push rod to pull the steel wire so as to pull the vehicle door lock limiting pin to move. The second locking mechanism of the door handle of the new energy automobile is forcibly unlocked, great convenience is provided for rescue workers outside the automobile, meanwhile, precious gold rescue time is gained, and the survival rate of coma trapped people on the automobile is greatly increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a new energy automobile door handle's automatic unlocking device belongs to mould field. BACKGROUND

[0002] The new energy automobile refers to using unconventional vehicle fuel as power source (or using conventional vehicle fuel, adopting new vehicle power device), the advanced technology of comprehensive vehicle power control and drive, forms the automobile of advanced technical principle, having new technology, new structure.

[0003] With the application of new energy vehicles in the market, some drawbacks appear in the actual application process, such as battery spontaneous combustion, when the new energy vehicle battery spontaneous combustion, the escape of the vehicle personnel becomes a crucial problem, especially when the accident occurs, and the vehicle personnel has been unconscious, and the battery has also been spontaneous combustion, how to quickly rescue the vehicle personnel is a serious problem.

[0004] Whether it is a new energy vehicle or a fuel vehicle, the door handle on the vehicle has two locking mechanisms, the first locking mechanism is the locking mechanism of the normal opening and closing of the vehicle door, this locking mechanism can be realized by the normal opening and closing of the vehicle door, after locking, the door handle can be directly pulled from inside or outside the vehicle to open and close the door, even if the vehicle is completely powered off, the door can be opened by directly pulling the door handle inside or outside the vehicle.

[0005] The second locking mechanism is that the door handle locking mechanism on the vehicle will automatically lock after a distance / speed of the vehicle or the driver actively controls the electronic lock button, the small motor inside the door lock mechanism pushes the door lock limit pin to block the unlocking mechanism of the door handle, which is equivalent to another insurance for the unlocking mechanism of the door handle on the vehicle, after the second locking mechanism is automatically locked, at this time, the door can only be opened by the electric key or mechanical key outside the vehicle, and the door can only be opened by the driver controlling the electronic lock button or pulling the mechanical unlocking switch inside the vehicle.

[0006] When the new energy vehicle is powered off due to collision or other accidents, and the driver and passengers are trapped in the vehicle without consciousness, the rescuers do not have electric keys and mechanical keys; at this time, the vehicle has only one way to open the door, that is, the driver opens the door by pulling the mechanical unlocking switch of the vehicle door handle from inside the vehicle, under this condition, the rescuers can only use the window breaking or other abnormal means to rescue the unconscious people in the vehicle, which undoubtedly greatly increases the difficulty and risk of rescue work, even if the people in the vehicle are rescued, the best rescue time is also easily missed, leading to many irreparable tragedies.

[0007] The utility model provides a new energy automobile door handle's automatic unlocking device which adopts pure mechanical structure automatic unlocking under the condition of power failure. Utility model content

[0008] Therefore, the utility model discloses a new energy automobile door handle's automatic unlocking device which adopts pure mechanical structure automatic unlocking under the condition of power failure.

[0009] The utility model is realized as follows:

[0010] A new energy automobile door handle's automatic unlocking device, including bottom shell and piston, the bottom shell is welded on the outer surface of automobile battery, the piston moves up and down in the bottom shell;

[0011] Lever and push rod, the push rod is vertically arranged above the lever, the lever is fixed on the push rod chassis through lever fulcrum, and one end of the lever is connected with the piston top end, and the other end of the lever is in contact with the push rod bottom end;

[0012] Steel wire and limit pin, the steel wire is fixed in the push rod bottom end through steel wire fixed block, and the other end of the steel wire is fixed on the car door lock limit pin;The limit pin is located on the motor of the car door handle lock or unlocking device, and the unlocking and lock of the car door handle are controlled through horizontal movement.

[0013] As a further improvement, the space between the bottom shell and the piston is a closed cavity, and the closed cavity is filled with a gas with a high thermal expansion coefficient.

[0014] As a further improvement, the lever includes a horizontal part and a vertical part, the vertical part is vertically arranged at one end of the horizontal part, and the end of the horizontal part close to the vertical part is fixed on the push rod chassis through a lever fulcrum.

[0015] As a further improvement, the end of the vertical part is conical.

[0016] As a further improvement, a spring base is horizontally arranged at the end of the push rod away from the vertical part, and a spring is arranged between the spring base and the push rod.

[0017] As a further improvement, the surface of the bottom shell and the automobile battery shell is tightly attached to each other.

[0018] As a further improvement, the lever and the piston are rotationally connected through a fixed pin.

[0019] As a further improvement, the shape of the bottom shell is a polyhedral column.

[0020] The beneficial effects of this utility model are as follows: This utility model senses the temperature of the vehicle battery and utilizes the characteristic that thermally expanding gas expands rapidly when heated to drive the lever mechanism, thereby releasing the spring force that has been under tension and compression. The spring force pushes the push rod to pull the steel wire, thereby pulling the door lock limit pin to move, forcibly unlocking the second locking mechanism of the new energy vehicle door handle, providing great convenience for rescuers outside the vehicle, while also gaining precious golden rescue time and greatly increasing the survival rate of unconscious and trapped people in the vehicle. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Fig. 1 This is a schematic diagram of the principle of an automatic unlocking device for a door handle of a new energy vehicle provided by an embodiment of the present invention.

[0023] Fig. 2 This is a side view of an automatic unlocking device for a door handle of a new energy vehicle provided in this embodiment of the present invention.

[0024] Fig. 3 This is a top view of an automatic unlocking device for a door handle of a new energy vehicle provided in this embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0027] Referring to Figs. 1-3 The utility model provides a kind of concrete implementation of the automatic unlocking device of new energy automobile door handle, including bottom shell 10 and piston 20, the bottom shell 10 is welded on the outer surface of automobile battery, the piston 20 moves up and down in bottom shell 10;

[0028] Lever 30 and push rod 40, the push rod 40 is vertically arranged above lever 30, the lever 30 is fixed on push rod chassis 60 by lever fulcrum 50, and one end of the lever 30 is connected with the top end of piston 20, and the other end of the lever 30 is in contact with the bottom end of push rod 40;

[0029] Steel wire 70 and limit pin 80, the steel wire 70 is fixed on the bottom end of push rod 40 by steel wire fixing block 14, and the other end of the steel wire 70 is fixed on the door lock limit pin 80 of vehicle;The limit pin 80 is located on the motor of the unlocking device of automobile door handle, and the unlocking and falling lock of automobile door handle are controlled by horizontal movement;The top end of the push rod 40 is rotatably connected to the push rod chassis 60 by the second fixed pin 13.

[0030] Further, the space between the bottom shell 10 and the piston 20 is a closed cavity, which is filled with a gas with a high coefficient of thermal expansion, including but not limited to helium, nitrogen;The gas will expand sharply and rapidly increase in volume when heated, and when the temperature reaches a certain condition, the expansion force of the gas can push the piston to move upward;When the room temperature or the temperature does not reach a certain condition, the expansion force cannot push the piston to move upward.

[0031] Wherein, the bottom end of the push rod 40 is provided with a spring base 90 away from the vertical part 302, and a spring 11 is arranged between the spring base 90 and the bottom end of the push rod 40.

[0032] Wherein, the lever 30 includes horizontal part 301 and vertical part 302, the vertical part 302 is vertically arranged at one end of the horizontal part 301, and the end of the horizontal part 301 close to the vertical part 302 is fixed on the push rod chassis 60 by the lever fulcrum 50.

[0033] The unlocking function is not triggered: the bottom shell 10 welded on the outer surface of the automobile battery absorbs heat, in the normal driving state, the gas in the closed cavity is in a non-high temperature state, that is, below 200 DEG C, the piston 20 cannot be pushed, and the automatic unlocking function is not triggered.

[0034] The unlocking function is triggered: the bottom shell 10 welded on the outer shell (not directly contacting the surface of the battery) of the automobile battery absorbs heat, in the emergency state, for example, the battery of the automobile is about to self-ignite or other conditions trigger the temperature rise of the automobile battery, the gas in the closed cavity absorbs heat through the bottom shell 10, is in a high temperature state, that is, higher than 200 DEG C, the gas in the closed cavity expands and the piston 20 in the bottom shell 10 is lifted; the push lever 30 rotates counterclockwise around the lever fulcrum 50, so that the vertical part 302 of the lever 30 moves downward until the bottom end of the push rod 40 is no longer in contact, the force balance state of the bottom end of the push rod 40 is broken, and the spring 11 in the tension state releases the spring force acting on the bottom end of the push rod 40, so that the push rod 40 rotates clockwise around the second fixed pin 13, and the steel wire 13 also rotates, at this time, the other end of the steel wire 13 pulls the door lock limiting pin 80 to move in the direction of the steel wire 70, when the limiting pin 80 slides in the direction of the steel wire 70, the door lock can be changed from the locked state to the unlocked state, at this time, the door can be normally opened from the outside or the inside of the vehicle.

[0035] In summary, the utility model discloses the temperature of the vehicle battery is inducted, the characteristics that the thermal expansion gas is rapidly expanded by heat are utilized, the lever mechanism is pushed and operates, thereby releasing the spring force that is always in the tension compression, the spring force pushes the push rod and pulls the steel wire to move the door lock limiting pin, forcibly unlock the second locking mechanism of the new energy automobile door handle, provide great convenience for the rescuer outside the vehicle, and the valuable golden rescue time is strived for, and the survival rate of the personnel who are in a coma and trapped on the vehicle is greatly increased.

[0036] In one of the embodiments, the end of the vertical part 302 is conical, which can smoothly push the vertical part 302 to move, accurately align, and also reduce the gravity of the lever 30, so that the lever 30 is more easily pushed to unlock.

[0037] In one of the embodiments, the surface of the bottom shell 10 and the outer shell of the automobile battery is tightly attached to each other, and the piston 20 is located inside the bottom shell 10, so that the force transmission is more labor-saving.

[0038] In one of the embodiments, the lever 30 and the piston 20 are rotationally connected through the fixed pin 12, and the rotation is more smooth.

[0039] In some embodiments, the bottom shell 10 is shaped as a multi-faceted cylinder, including but not limited to a cylinder, a cuboid, is easier to process, and is better to handle.

[0040] The preferred embodiments of the present application have been described above with the preferred embodiments, but are not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic unlocking device of a new energy vehicle door handle, characterized in that, It comprises a bottom shell (10) welded on the outer surface of the automobile battery and a piston (20) moving up and down in the bottom shell (10); A lever (30) and a push rod (40) vertically arranged above the lever (30), the lever (30) is fixed on the push rod chassis (60) through the lever fulcrum (50), and one end of the lever (30) is connected with the top end of the piston (20), and the other end of the lever (30) is in contact with the bottom end of the push rod (40); A steel wire (70) and a limiting pin (80), the steel wire (70) is fixed on the bottom end of the push rod (40) through the steel wire fixing block (14), and the other end of the steel wire (70) is fixed on the door lock limiting pin (80); the limiting pin (80) is located on the motor of the automobile door handle locking or unlocking device, and the unlocking and locking of the automobile door handle are controlled by horizontal movement.

2. The automatic unlocking device of a new energy vehicle door handle according to claim 1, characterized in that, The space between the bottom shell (10) and the piston (20) is a closed cavity, which is filled with a gas with a high thermal expansion coefficient.

3. The automatic unlocking device of a new energy vehicle door handle according to claim 1, characterized in that, The lever (30) comprises a horizontal part (301) and a vertical part (302), the vertical part (302) is vertically arranged at one end of the horizontal part (301), and the end of the horizontal part (301) close to the vertical part (302) is fixed on the push rod chassis (60) through the lever fulcrum (50).

4. The automatic unlocking device of a new energy vehicle door handle according to claim 3, characterized in that, The end of the vertical part (302) is conical.

5. The automatic unlocking device of a new energy vehicle door handle according to claim 1, characterized in that, A spring base (90) is horizontally arranged at the end of the push rod (40) away from the vertical part (302), and a spring (11) is arranged between the spring base (90) and the bottom end of the push rod (40).

6. The automatic unlocking device of a new energy vehicle door handle according to claim 1, characterized in that, The bottom shell (10) and the surface of the automobile battery shell are tightly attached to each other.

7. The automatic unlocking device of a new energy vehicle door handle according to claim 1, characterized in that, The lever (30) and the piston (20) are rotationally connected through the fixing pin (12).

8. The automatic unlocking device of a new energy vehicle door handle according to claim 6, characterized in that, The shape of the bottom shell (10) is a multi-faced column.

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