Active engine cover device and automobile
By designing an active cover device with a hinge mechanism including a movable arm, a connecting arm, an electromagnet and a driving member, the problem of the inability to reuse of the traditional device is solved, and the reuse of the device and the reduction of user costs are achieved.
Patent Information
- Application Number
- CN202311397826.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-26
- Publication Date
- 2025-04-29
AI Technical Summary
The traditional active cover device cannot be reused after collision, resulting in increased user maintenance costs.
An active cover device including a cover and a hinge mechanism is designed, which consists of a movable arm, a connecting arm, a first rotating shaft, an electromagnet and a driving member. When the electromagnet is powered off, the driving member drives the movable arm to rotate about the first rotation axis to lift the hood; when the electromagnet is powered on, the electromagnet absorbs the movable arm and resets it to realize the reuse of the device.
By realizing the reuse of the engine cover device, the maintenance costs for users are reduced and the reliability and safety of the device are improved.
Smart Images
Figure CN119900445A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of automobile technology, and in particular to an active hood device and an automobile. Background Art
[0002] The rapid development of the automobile industry and technology has made cars an indispensable means of transportation in people's daily lives. With the continuous increase in the number of cars, traffic accidents are becoming more and more frequent, so the safety of cars has received more and more attention from people.
[0003] When a pedestrian collides with the front of a vehicle, most accidents involve a collision between the pedestrian and the car and then the hood, resulting in severe or even fatal head injuries. Traditional hinges do not have sufficient deformation space and there are hard points in the hood hinge area, which can easily cause head injuries to pedestrians when they collide with vehicles.
[0004] The existing active hood device can protect pedestrians by lifting the rear part of the hood to a certain height through the explosion of explosives inside the lifter when the car collides. However, the lifter and other parts of the device cannot be reused and need to be replaced after a collision, which increases the maintenance cost for users. Summary of the invention
[0005] An embodiment of the present application provides a reusable active engine cover device.
[0006] An embodiment of the present application provides an active machine cover device, including a machine cover and a hinge mechanism, the hinge mechanism including a movable arm, a connecting arm, a first rotating shaft, an electromagnet and a driving member, the movable arm is connected to the machine cover, and the movable arm is rotatably connected to the connecting arm through the first rotating shaft; the electromagnet is installed on the connecting arm, and the working surface of the electromagnet faces the movable arm; the driving member connects the movable arm and the connecting arm, and the driving member is used to drive the movable arm to rotate around the first rotating shaft when the electromagnet is powered off.
[0007] According to the implementation scheme of the first aspect of the present application, the movable arm includes a first section, a middle section and a second section arranged in sequence, the first rotating shaft is connected to the middle section, the machine cover is connected to the second section, and the working surface of the electromagnet faces the second section.
[0008] According to an implementation of the first aspect of the present application, the driving member is an elastic return member, and the driving member connects the first section and the connecting arm.
[0009] According to an implementation of the first aspect of the present application, the driving member is a torsion spring, and the driving member is sleeved on the first rotating shaft.
[0010] According to an implementation of the first aspect of the present application, the first section and the second section are arranged along the front-rear direction of the automobile, and the second section is located behind the first section.
[0011] According to the implementation scheme of the first aspect of the present application, it also includes a control mechanism, which is electrically connected to the electromagnet.
[0012] According to the implementation scheme of the first aspect of the present application, it also includes a detection mechanism, which is electrically connected to the control mechanism, and the detection mechanism includes at least one of a laser radar, a collision sensor, and a deformation sensor.
[0013] According to the implementation scheme of the first aspect of the present application, the hinge mechanism also includes a hinge seat and a second rotating shaft. The hinge seat is installed on the vehicle body, the connecting arm and the hinge seat are rotatably connected through the second rotating shaft, and the connecting arm, the movable arm and the hood can rotate synchronously around the second rotating shaft.
[0014] According to the implementation of the first aspect of the present application, two hinge mechanisms are arranged at intervals along the left-right direction of the car, and the hood is connected to the body through the two hinge mechanisms.
[0015] On the other hand, an embodiment of the present application also provides a car, including a body and the above active hood device.
[0016] The active hood device of the embodiment of the present application includes a hood and a hinge mechanism, wherein the hinge mechanism includes a movable arm, a connecting arm, a first rotating shaft, an electromagnet and a driving member, wherein the movable arm is connected to the hood, and the movable arm is rotatably connected to the connecting arm through the first rotating shaft; the electromagnet is installed on the connecting arm, and the working surface of the electromagnet faces the movable arm; the driving member connects the movable arm and the connecting arm, and the driving member is used to drive the movable arm to rotate around the first rotating shaft when the electromagnet is powered off. By making the movable arm rotatably connected to the connecting arm, the hood is connected to the movable arm, and when the electromagnet installed on the connecting arm is powered off, the driving member drives the movable arm to rotate around the first rotating shaft, so that the movable arm lifts the hood to achieve the purpose of protecting pedestrians, and when the electromagnet is powered on, the electromagnet absorbs the movable arm and resets the movable arm, thereby realizing the reuse of the active hood device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0018] Figure 1 A schematic diagram of the structure of an active engine cover device according to some embodiments of the present application;
[0019] Figure 2 A schematic diagram showing the structure of an exemplary hinge mechanism when the electromagnet is energized;
[0020] Figure 3 A schematic structural diagram of an exemplary hinge mechanism is shown when the electromagnet is powered off.
[0021] Reference numerals:
[0022] 10. Engine cover;
[0023] 20. movable arm; 21. first section; 22. middle section; 23. second section;
[0024] 30. Connecting arm;
[0025] 40. First rotating shaft;
[0026] 50. Electromagnet;
[0027] 60. Driving parts;
[0028] 70. Hinge seat;
[0029] 80. Second rotating shaft;
[0030] x, the front and back direction of the car; z, the up and down direction of the car. DETAILED DESCRIPTION
[0031] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0033] The applicant proposes an active hood device, including a hood and a hinge mechanism, wherein the hinge mechanism includes a movable arm, a connecting arm, a first rotating shaft, an electromagnet and a driving member, wherein the movable arm is connected to the hood, and the movable arm is rotatably connected to the connecting arm through the first rotating shaft; the electromagnet is installed on the connecting arm, and the working surface of the electromagnet faces the movable arm; the driving member connects the movable arm and the connecting arm, and the driving member is used to drive the movable arm to rotate around the first rotating shaft when the electromagnet is powered off.
[0034] The active hood device provided in the present application is connected to the movable arm by rotationally connecting the movable arm with the connecting arm. When the electromagnet installed on the connecting arm is powered off, the driving member drives the movable arm to rotate around the first rotating axis, so that the movable arm lifts the hood to achieve the purpose of protecting pedestrians. When the electromagnet is powered on, the electromagnet attracts the movable arm and resets the movable arm, thereby realizing the reuse of the active hood device.
[0035] In order to solve the problems of the prior art, the embodiment of the present application provides an active engine cover device. The active engine cover device provided by the embodiment of the present application is introduced below. It should be noted that in the accompanying drawings, for the convenience of drawing, the dimensions in the drawings are not necessarily proportional to the actual dimensions.
[0036] Please refer to Figures 1 to 3 , Figure 1 A schematic diagram of the structure of an active engine cover device according to some embodiments of the present application; Figure 2 A schematic diagram showing the structure of an exemplary hinge mechanism when the electromagnet is energized; Figure 3 A schematic structural diagram of an exemplary hinge mechanism is shown when the electromagnet is powered off.
[0037] like Figures 1 to 3 As shown, the present application provides an active cover device, including a cover 10 and a hinge mechanism, the hinge mechanism including a movable arm 20, a connecting arm 30, a first rotating shaft 40, an electromagnet 50 and a driving member 60, the movable arm 20 is connected to the cover 10, the movable arm 20 is rotatably connected to the connecting arm 30 through the first rotating shaft 40, and the movable arm 20 is configured to be able to rotate around the first rotating shaft 40 to make the cover 10 swing up and down. The electromagnet 50 is installed on the connecting arm 30, the working surface of the electromagnet 50 faces the movable arm 20, and the electromagnet 50 adsorbs the movable arm 20 when powered on. The driving member 60 connects the movable arm 20 and the connecting arm 30, and the driving member 60 is used to drive the movable arm 20 to rotate around the first rotating shaft 40 when the electromagnet 50 is powered off.
[0038] Optionally, the x direction in the accompanying drawings is the front and rear direction of the car, and the z direction is the up and down direction of the car. In the subsequent direction descriptions, unless otherwise specified, the front refers to the front direction of the car, the rear refers to the rear direction of the car, the top refers to the roof direction, and the bottom refers to the bottom direction of the car.
[0039] Optionally, the working surface of the electromagnet 50 refers to the surface of the electromagnet 50 used to absorb the material when the electromagnet 50 is powered on. In this embodiment, when the electromagnet 50 is powered on, the working surface is in contact with the movable arm 20.
[0040] Optionally, the connection position between the hood 10 and the movable arm 20 is the rear end of the hood 10, and the front end of the hood 10 is connected to the vehicle body (not shown) through a lock (not shown). When the electromagnet 50 is powered off, the driving member 60 drives the connection position between the movable arm 20 and the hood 10 to move upward, and the movable arm 20 lifts the rear end of the hood 10, so that the distance between the hood 10 and the engine compartment (not shown) becomes larger, thereby protecting pedestrians. After the collision, the user only needs to power on the electromagnet 50, and the movable arm 20 overcomes the external force of the driving member 60 under the adsorption of the electromagnet 50 to rotate in the opposite direction around the first rotating shaft 40, and finally resets.
[0041] Optionally, the movable arm 20 is at least partially made of magnetic material, and can be subjected to the adsorption force of the electromagnet 50 when the electromagnet 50 is energized. The electromagnet 50 can be directly mounted on the connecting arm 30, or indirectly mounted on the connecting arm 30 through other connecting parts. The driving member 60 can be directly connected to the connecting arm 30, or indirectly connected to the connecting arm 30 through other connecting parts.
[0042] The active cover device provided in this embodiment includes a cover 10 and a hinge mechanism, wherein the hinge mechanism includes a movable arm 20, a connecting arm 30, a first rotating shaft 40, an electromagnet 50 and a driving member 60, wherein the movable arm 20 is connected to the cover 10, and the movable arm 20 is rotatably connected to the connecting arm 30 through the first rotating shaft 40, and the movable arm 20 is configured to be able to rotate around the first rotating shaft 40 to make the cover 10 swing up and down. The electromagnet 50 is installed on the connecting arm 30, and the electromagnet 50 adsorbs the movable arm 20 when powered on. The driving member 60 connects the movable arm 20 and the connecting arm 30, and the driving member 60 is used to drive the movable arm 20 to rotate around the first rotating shaft 40 when the electromagnet 50 is powered off. By rotatably connecting the movable arm 20 with the connecting arm 30, the hood 10 is connected to the movable arm 20. When the electromagnet 50 installed on the connecting arm 30 is powered off, the driving member 60 drives the movable arm 20 to rotate around the first rotating shaft 40, so that the movable arm 20 lifts the hood 10, thereby achieving the purpose of protecting pedestrians. When the electromagnet 50 is powered on, the electromagnet 50 absorbs the movable arm 20 and resets the movable arm 20, thereby realizing the reuse of the active hood device.
[0043] In some optional embodiments, the movable arm 20 includes a first section 21, a middle section 22 and a second section 23 arranged in sequence, the first rotating shaft 40 is connected to the middle section 22, the machine cover 10 is connected to the second section 23, the working surface of the electromagnet 50 faces the second section 23, the electromagnet 50 adsorbs the second section 23 when powered on, and the driving member 60 is used to drive the movable arm 20 to rotate around the first rotating shaft 40 when the electromagnet 50 is powered off, thereby moving the second section 23 away from the electromagnet 50.
[0044] Optionally, the first section 21 and the second section 23 are arranged along the front-rear direction of the car (the x direction in the figure), and the second section 23 is located behind the first section 21. When the electromagnet 50 is powered off, the driving member 60 drives the movable arm 20 to rotate along the first rotating shaft 40, so that the first section 21 swings downward and the second section 23 swings upward, thereby causing the second section 23 to lift the hood 10. When the electromagnet 50 is powered on, the electromagnet 50 absorbs the second section 23 and swings downward, and the movable arm 20 rotates in the opposite direction along the first rotating shaft 40, and the first section 21 overcomes the force of the driving member 60 and swings upward until the electromagnet 50 absorbs the second section 23. At this time, the movable arm 20 completes the reset, and due to the absorption effect of the electromagnet 50, the movable arm 20 cannot rotate around the first rotating shaft 40.
[0045] In some optional embodiments, the driving member 60 is an elastic return member, and the driving member 60 connects the first section 21 and the connecting arm 30 .
[0046] Optionally, the elastic return member may be at least one of a spring, an elastic band, and elastic rubber.
[0047] Optionally, an end of the driving member 60 connected to the connecting arm 30 is lower than an end connected to the first section 21 , and the driving member 60 is used to pull the first section 21 closer to the connecting arm 30 .
[0048] Optionally, the pulling force of the driving member 60 on the first section 21 is smaller than the adsorption force of the electromagnet 50 on the second section 23, the adsorption force of the electromagnet 50 on the second section 23 can be adjusted by the power of the electromagnet 50, and the pulling force of the driving member 60 on the first section 21 can be adjusted by the model of the spring.
[0049] The active hood device provided in this embodiment connects the first section 21 and the connecting arm 30 through a spring, so that when the electromagnet 50 is powered off, the spring pulls the first section 21 close to the connecting arm 30, and the first section 21 swings downward around the first rotating shaft 40, thereby realizing the upward swing of the second section 23 around the first rotating shaft 40, thereby lifting the hood 10.
[0050] In some other optional embodiments, the driving member 60 is a torsion spring, and the driving member 60 is sleeved on the first rotating shaft 40 .
[0051] Optionally, one end of the torsion spring abuts against the movable arm 20 and the other end abuts against the connecting arm 30 . The torsion spring is used to drive the movable arm 20 to rotate around the first rotating shaft 40 , so that the first section 21 swings downward and the second section 23 swings upward.
[0052] In some optional embodiments, the active engine cover device further includes a control mechanism (not shown), which is electrically connected to the electromagnet 50 , and is used to control the on and off of power to the electromagnet 50 .
[0053] Optionally, the control mechanism may be one of an ECU (Electronic Control Unit), a microprocessor and an independent chip.
[0054] The active hood device provided in this embodiment allows the user to control the electromagnet 50 to be energized again through the vehicle-mounted system and the control mechanism after a collision occurs, thereby resetting the hood 10 .
[0055] In some optional embodiments, the active hood device further includes a detection mechanism (not shown), which is electrically connected to the control mechanism, and includes at least one of a laser radar, a collision sensor, and a deformation sensor.
[0056] Optionally, a collision sensor and a deformation sensor are installed on the front bumper of the car. When the car hits a pedestrian, the front bumper vibrates and deforms, and the collision sensor and the deformation sensor send a collision signal to the control mechanism. The laser radar is used to identify the road conditions in front of the vehicle. When the vehicle is driving, the laser radar identifies that there are pedestrians in front and there is a risk of collision and sends a collision signal to the control mechanism. When the control mechanism receives the collision signal, the electromagnet 50 is controlled to be powered off, and then the movable arm 20 lifts the hood 10.
[0057] In the active hood device provided in this embodiment, the detection mechanism sends a collision signal to the control mechanism when a collision is detected. The control mechanism controls the electromagnet 50 to cut off the power, so that the movable arm 20 lifts the hood 10 to achieve the purpose of protecting pedestrians.
[0058] In some optional embodiments, the hinge mechanism also includes a hinge seat 70 and a second rotating shaft 80. The hinge seat 70 is installed on the vehicle body. The connecting arm 30 is rotatably connected to the hinge seat 70 through the second rotating shaft 80. The connecting arm 30, the movable arm 20 and the hood 10 can rotate synchronously around the second rotating shaft 80.
[0059] Optionally, when the electromagnet 50 is energized and the lock is opened, the connecting arm 30, the movable arm 20 and the hood 10 can rotate synchronously around the second rotating shaft 80, so that the hood 10 is opened from the front end and the engine compartment is exposed.
[0060] The active cover device provided in this embodiment realizes the normal opening function of the cover 10 through the hinge seat 70 and the second rotating shaft 80.
[0061] In some optional embodiments, two hinge mechanisms are arranged at intervals along the left-right direction of the automobile, and the hood 10 is connected to the vehicle body through the two hinge mechanisms.
[0062] Optionally, the hood 10 is connected to the vehicle body via two hinge mechanisms, thereby improving the connection strength between the hood 10 and the vehicle body.
[0063] Optionally, the vehicle body includes an engine compartment, and the hinge seat 70 is connected to the engine compartment.
[0064] The embodiment of the second aspect of the present application also provides a car, including a car body and the above active hood device. Since the car provided by the embodiment of the second aspect of the present application includes the active hood device of any embodiment of the first aspect, the car provided by the embodiment of the second aspect of the present application has the beneficial effects of the active hood device of any embodiment of the first aspect, which will not be repeated here.
[0065] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.
Claims
1. An active hood device, installed on a car, characterized in that: include: Canopy; The hinge mechanism includes a movable arm, a connecting arm, a first rotating shaft, an electromagnet and a driving member, wherein the movable arm is connected to the machine cover, and the movable arm is rotatably connected to the connecting arm through the first rotating shaft; the electromagnet is installed on the connecting arm, and the working surface of the electromagnet faces the movable arm; the driving member connects the movable arm and the connecting arm, and the driving member is used to drive the movable arm to rotate around the first rotating shaft when the electromagnet is powered off.
2. The active engine cover device according to claim 1, characterized in that: The movable arm comprises a first section, a middle section and a second section which are arranged in sequence, the first rotating shaft is connected to the middle section, the machine cover is connected to the second section, and the working surface of the electromagnet faces the second section.
3. The active engine cover device according to claim 2, characterized in that: The driving member is an elastic reset member, and the driving member connects the first section and the connecting arm.
4. The active engine cover device according to claim 2, characterized in that: The driving member is a torsion spring, and the driving member is sleeved on the first rotating shaft.
5. The active engine cover device according to claim 2, characterized in that: The first section and the second section are arranged along the front-rear direction of the automobile, and the second section is located behind the first section.
6. The active hood device according to claim 1, characterized in that: It also includes a control mechanism, which is electrically connected to the electromagnet.
7. The active hood device according to claim 6, characterized in that: It also includes a detection mechanism, which is electrically connected to the control mechanism, and the detection mechanism includes at least one of a laser radar, a collision sensor, and a deformation sensor.
8. The active hood device according to claim 1, characterized in that: The hinge mechanism also includes a hinge seat and a second rotating shaft, the hinge seat is installed on the vehicle body, the connecting arm is rotationally connected to the hinge seat through the second rotating shaft, and the connecting arm, the movable arm and the hood can rotate synchronously around the second rotating shaft.
9. The active hood device according to claim 8, characterized in that: The two hinge mechanisms are arranged at intervals along the left-right direction of the automobile, and the hood is connected to the vehicle body through the two hinge mechanisms.
10. An automobile, characterized in that: It comprises a vehicle body and an active hood device as described in any one of claims 1 to 9.