Automobile hood driving mechanism and automobile

Abstract

The application discloses a car front cover driving mechanism and relates to the technical field of cars. The car front cover driving mechanism comprises a connecting piece and a self-locking driving device. The connecting piece is used for being connected with a car front cover. The self-locking driving device is connected with the connecting piece and can drive the connecting piece to move so as to drive the car front cover to open and close. The self-locking driving device can control the opening and closing angle of the car front cover. The application further discloses a car comprising the car front cover driving mechanism. The application can control the opening and closing angle of the car front cover and improve flexibility.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a car hood drive mechanism and a car. Background Technology

[0002] As automobiles develop at an increasingly rapid pace, the requirements for electronic control of the vehicle body system are becoming more and more demanding. However, there has been little progress in the electronic control of the hood system. Currently, most hood systems on the market are still purely mechanical, requiring manual opening after the user unlocks the hood, which is quite cumbersome.

[0003] Currently, although some cars are equipped with power-operated hoods, they mostly use power struts to achieve the power opening of the hood. However, the power struts can only fully open or close the hood and cannot control the opening and closing angle of the hood, resulting in low flexibility. Summary of the Invention

[0004] The purpose of this invention is to provide a car hood drive mechanism and a car to solve the problems existing in the prior art, thereby controlling the opening and closing angle of the car hood and improving flexibility.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a car hood drive mechanism, comprising:

[0007] A connector for connecting to a vehicle hood;

[0008] The self-locking drive device is connected to the connector and can drive the connector to move, thereby opening and closing the car hood. The self-locking drive device can also control the opening and closing angle of the car hood.

[0009] Preferably, the self-locking drive device is a self-locking motor, the output shaft of the self-locking motor is connected to the connecting member, and the self-locking motor can drive the connecting member to rotate, thereby driving the opening and closing of the car hood.

[0010] Preferably, in the installed state, the output shaft of the self-locking motor is vertically arranged, and the output shaft of the self-locking motor is connected to the connector through a transmission assembly.

[0011] Preferably, the transmission assembly includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially mounted on the output shaft of the self-locking motor, and the second bevel gear is fixed to the connector and meshes with the first bevel gear.

[0012] Preferably, the diameter of the second bevel gear is larger than the diameter of the first bevel gear.

[0013] Preferably, the vehicle hood drive mechanism further includes a limiting component, which is used to limit the vehicle hood when it rotates to a preset angle.

[0014] Preferably, the limiting assembly includes a ratchet, a pawl, and a first limiting pin. The ratchet is mounted on the output shaft of the self-locking motor. One end of the pawl is rotatably mounted on the vehicle body via a rotating shaft, and the other end is positioned close to the ratchet. The pawl has a limiting hole, and the first limiting pin corresponds to the limiting hole. The first limiting pin is connected to a limiting pin drive device, which drives the first limiting pin to insert into or disengage from the limiting hole.

[0015] When the first limiting pin is inserted into the limiting hole, the pawl can lock the ratchet to restrict the downward rotation of the car hood.

[0016] Preferably, the limiting component further includes a second limiting pin, which is located on the side of the pawl near the ratchet to limit the maximum rotational position of the pawl toward the ratchet.

[0017] Preferably, the limiting pin drive device includes a lifting motor, a gear is mounted on the output shaft of the lifting motor, and a rack is connected to the end of the first limiting pin away from the pawl. The rack meshes with the gear. The lifting motor drives the gear to rotate, which in turn drives the rack and the first limiting pin to move linearly, so that the first limiting pin is inserted into or disengaged from the limiting hole on the pawl.

[0018] The present invention also provides an automobile, including the automobile hood drive mechanism described above.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] In this invention, a self-locking drive device is used to drive the connecting parts to move. When the connecting parts are driven to a designated position, they can be locked and no longer move, thereby controlling the opening and closing angle of the car hood. This allows the car hood to be suspended at any angle between fully open and fully closed, improving flexibility. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the structure of the car hood drive mechanism in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the operation of the limiting component in an embodiment of the present invention;

[0024] Figure 3 This is a control flowchart of the car hood drive mechanism in an embodiment of the present invention.

[0025] In the diagram: 1-Self-locking motor, 2-First bevel gear, 3-Second bevel gear, 4-Ratchet, 5-Pawl, 6-Lifting motor, 7-First limit pin, 8-Hinge, 9-Rotating shaft, 10-Second limit pin. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The purpose of this invention is to provide a car hood drive mechanism and a car to solve the problems existing in the prior art, thereby controlling the opening and closing angle of the car hood and improving flexibility.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] like Figures 1-3 As shown, this embodiment provides a car hood drive mechanism, mainly including: a connector and a self-locking drive device. The connector is used to connect with the car hood; the self-locking drive device is connected to the connector and can drive the connector to move, thereby driving the car hood to open and close, and the self-locking drive device can control the opening and closing angle of the car hood.

[0031] In this embodiment, a self-locking drive device is used to drive the connecting parts to move. When the connecting parts are driven to a designated position, they can be locked and no longer move, thereby controlling the opening and closing angle of the car hood. This allows the car hood to be suspended at any angle between fully open and fully closed, improving flexibility.

[0032] In a preferred embodiment, the self-locking drive device is a self-locking motor 1. The output shaft of the self-locking motor 1 is connected to the connecting member, and the self-locking motor 1 can drive the connecting member to rotate, thereby opening and closing the car hood. Specifically, the output shaft of the self-locking motor 1 is connected to the connecting member via a transmission assembly; wherein, the transmission assembly includes a first bevel gear 2 and a second bevel gear 3. In the installed state, the output shaft of the self-locking motor 1 is vertically arranged, which can save horizontal space in the front of the car and has a small footprint, making it easy to install; the first bevel gear 2 is coaxially mounted on the output shaft of the self-locking motor 1, and the second bevel gear 3 is fixed to the connecting member and meshes with the first bevel gear 2.

[0033] In this embodiment, as Figure 1 As shown, the connecting component mainly includes a hinge 8. One end of the hinge 8 is connected to the front cover of the car, and the other end is mounted on the central shaft of the second bevel gear 3. The central shaft of the second bevel gear 3 is horizontally set and rotatably mounted on a mounting bracket, which is fixedly mounted on the car body.

[0034] In this embodiment, the self-locking motor 1 drives the first bevel gear 2 to rotate, which in turn drives the second bevel gear 3, which meshes with the first bevel gear 2, to rotate. This enables the connecting parts to rotate, thus realizing the opening and closing of the car hood. Moreover, by controlling the rotation angle of the first bevel gear 2 through the self-locking motor 1, the opening and closing angle of the car hood can be controlled, allowing the car hood to be suspended at any angle, improving flexibility.

[0035] In this embodiment, the diameter of the second bevel gear 3 is larger than the diameter of the first bevel gear 2.

[0036] In this embodiment, other self-locking drive devices can also be selected according to specific work needs. For example, a self-locking linear motor can be selected. The bottom end of the self-locking linear motor is rotatably mounted on the car body, and the top end is rotatably mounted on the car hood through a connector. In this case, the connector can be a hinged seat.

[0037] In this embodiment, the car hood drive mechanism further includes a limiting component, which is used to limit the car hood when it rotates to a preset angle. Specifically, it restricts the car hood from rotating downward to prevent the car hood from suddenly falling and causing injury to personnel due to a malfunction of the self-locking motor 1 when it is open.

[0038] In a preferred embodiment, the limiting component mainly includes a ratchet 4, a pawl 5, and a first limiting pin 7. The ratchet 4 is mounted on the output shaft of the self-locking motor 1. One end of the pawl 5 is rotatably mounted on the vehicle body via a vertically arranged rotating shaft 9, and the other end is positioned close to the ratchet 4. Both the ratchet 4 and the pawl 5 are horizontally arranged. The pawl 5 has a limiting hole, and the first limiting pin 7 is correspondingly positioned to the limiting hole. The first limiting pin 7 is connected to a limiting pin drive device, which is used to drive the first limiting pin 7 to insert into or disengage from the limiting hole.

[0039] When the first limiting pin 7 is inserted into the limiting hole, it can restrict the rotation of the pawl 5 around the rotating shaft 9, so that the pawl 5 can clamp the ratchet 4 to restrict the car hood from rotating downward. When the first limiting pin 7 is disengaged from the limiting hole, the pawl 5 will not obstruct the rotation of the ratchet 4, and the car hood can be closed normally.

[0040] In this embodiment, the limiting component further includes a second limiting pin 10, which is vertically disposed on the side of the pawl 5 near the ratchet 4 to limit the maximum rotation position of the pawl 5 toward the ratchet 4 and ensure the normal operation of the car hood drive mechanism.

[0041] In this embodiment, the limiting pin driving device includes a horizontally arranged lifting motor 6, a gear is mounted on the output shaft of the lifting motor 6, and a vertically arranged rack is connected to the end of the first limiting pin 7 away from the pawl 5 (i.e., the lower end). The rack meshes with the gear. The lifting motor 6 drives the gear to rotate, which can drive the rack and the first limiting pin 7 to move up and down, so that the first limiting pin 7 can be inserted into the limiting hole or disengaged from the limiting hole.

[0042] Alternatively, a worm gear lifting mechanism can be used instead of the gear and rack structure described above. Specifically, the worm gear is coaxially mounted on the output shaft of the lifting motor 6, the worm and the worm gear cooperate, the top of the worm is connected to the first limit pin 7, and the bottom of the worm is threaded into a mounting base. The rotation of the worm gear can drive the worm and the first limit pin 7 to move up and down.

[0043] Alternatively, other limit pin drive devices can be selected as needed. For example, the limit pin drive device can be a linear motor. The bottom of the first limit pin 7 is directly connected to the linear motor. The linear motor drives the first limit pin 7 to move up and down, thereby allowing the first limit pin 7 to be inserted into or disengaged from the limit hole.

[0044] This embodiment also provides a car, including the car hood drive mechanism as described above; wherein, the car hood is equipped with an electric hood lock, and after the electric hood lock is unlocked, the self-locking motor 1 can drive the car hood to open; wherein, the electric hood lock, the self-locking motor 1 and the lifting motor 6 are all connected to the car's controller.

[0045] In this embodiment, the electric hood lock is unlocked via the vehicle system or a mobile app. The controller sends a signal, and the self-locking motor 1 receives the signal and starts to rotate, driving the first bevel gear 2 to rotate. Through the meshing of the first bevel gear 2 and the second bevel gear 3, the hinge 8 can be driven to rotate to realize the opening and closing of the car hood.

[0046] When the car hood rotates to the preset angle, the controller sends a signal to control the self-locking motor 1 to self-lock, keeping the car hood in a fixed position. At the same time, it controls the lifting motor 6 to work, driving the first limit pin 7 to rise and insert into the limit hole on the pawl 5, so that the pawl 5 locks the ratchet 4, achieving mechanical locking. This ensures that the car hood will not suddenly fall due to a malfunction of the self-locking motor 1 when it is open, thus preventing injury to personnel.

[0047] When unlocking, the lifting motor 6 drives the first limit pin 7 to descend. When the ratchet 4 rotates, the pawl 5 rotates around the rotating shaft 9, which will not hinder the rotation of the ratchet 4, and the hood of the car can be closed normally.

[0048] When the car hood is fully closed, the electric hood lock engages and sends a signal to the controller. After receiving the signal, the controller stops the self-locking motor 1 from moving, thus completing the closure of the car hood.

[0049] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A car hood drive mechanism, characterized in that: include: A connector for connecting to a vehicle hood; A self-locking drive device is connected to the connector and can drive the connector to move, thereby opening and closing the car hood. The self-locking drive device can also control the opening and closing angle of the car hood. The self-locking drive device is a self-locking motor, and the output shaft of the self-locking motor is connected to the connector. The self-locking motor can drive the connector to rotate, thereby opening and closing the car hood. It also includes a limiting component, which is used to limit the front cover of the car when it rotates to a preset angle. The limiting component includes a ratchet, a pawl, and a first limiting pin. The ratchet is mounted on the output shaft of the self-locking motor. One end of the pawl can be rotatably mounted on the car body via a rotating shaft, and the other end is located near the ratchet. The pawl is provided with a limiting hole, and the first limiting pin is correspondingly provided with the limiting hole. The first limiting pin is connected to a limiting pin drive device, which is used to drive the first limiting pin to insert into or disengage from the limiting hole. When the first limiting pin is inserted into the limiting hole, the pawl can lock the ratchet to restrict the front cover of the car from rotating downward. The limiting component further includes a second limiting pin, which is located on the side of the pawl near the ratchet to limit the maximum rotational position of the pawl toward the ratchet.

2. The automotive hood drive mechanism according to claim 1, characterized in that: In the installed state, the output shaft of the self-locking motor is vertically positioned, and the output shaft of the self-locking motor is connected to the connector via a transmission assembly.

3. The automotive hood drive mechanism according to claim 2, characterized in that: The transmission assembly includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially mounted on the output shaft of the self-locking motor, and the second bevel gear is fixed on the connector and meshes with the first bevel gear.

4. The automotive hood drive mechanism according to claim 3, characterized in that: The diameter of the second bevel gear is larger than the diameter of the first bevel gear.

5. The automobile hood drive mechanism according to any one of claims 1-4, characterized in that: The limiting pin drive device includes a lifting motor, on the output shaft of which a gear is mounted. The end of the first limiting pin away from the pawl is connected to a rack, which meshes with the gear. The lifting motor drives the gear to rotate, which in turn drives the rack and the first limiting pin to move linearly, so that the first limiting pin is inserted into or disengaged from the limiting hole on the pawl.

6. A car, characterized in that: Includes the automotive hood drive mechanism as described in any one of claims 1-5.

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