Electric trunk lid opening and closing mechanism and electric trunk

Abstract

The utility model discloses an electric trunk lid opening and closing mechanism and an electric trunk. The electric trunk lid opening and closing mechanism comprises an electric supporting rod, an air spring, a first elbow hinge and a second elbow hinge, wherein the first elbow hinge and the second elbow hinge are symmetrically arranged on the two sides of a trunk lid body; the electric supporting rod is arranged on the first bent pipe hinge, the gas spring is arranged on the second bent pipe hinge, the electric supporting rod and the gas spring are symmetrically arranged, and the first bent pipe hinge and the second bent pipe hinge are driven to rotate around a shaft through telescopic movement of the electric supporting rod and the gas spring. The electric supporting rods and the air springs are symmetrically arranged on the bent pipe hinges on the two sides, in the opening and closing process, the system movement envelope can be reduced, the space utilization rate of the luggage case can be increased, and compared with an existing structure, the convenience of production and assembly can be improved, the final assembly production efficiency can be improved, and the purchase cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric luggage cases, in particular to an electric luggage case cover opening and closing mechanism and an electric luggage case. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] With the development of vehicle electrical intelligence, electric trunks are increasingly used in vehicles, eliminating the need for manual operation and improving the convenience of using the trunk lid. Currently, there are two designs for the support structure of the opening and closing mechanism of the electric trunk lid:

[0004] (1) Electric struts are arranged on both sides of the bent tube hinge, commonly known as a dual-drive structure, but the addition of a strut and control-related components results in a higher cost for the vehicle.

[0005] (2) The bent tube hinge has an electric support rod on one side and a tension spring on the other side, commonly known as a single-drive structure. However, when assembling the tension spring, it is necessary to manually use a lot of force to pull it to the assembly position or use a tool to pull it to the assembly position before assembly can be performed. Compared with the dual-drive structure, it saves costs, but at the same time the tension spring brings problems such as difficulty in assembly. Utility Model Content

[0006] In order to solve the above problems, the utility model proposes an electric trunk lid opening and closing mechanism and an electric trunk, in which electric struts and gas springs are symmetrically arranged on the bent tube hinges on both sides, which can reduce the system motion envelope during the opening and closing process and improve the space utilization rate of the trunk. Compared with the existing structure, it can improve the convenience of production and assembly, improve the final assembly production efficiency and save procurement costs.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In the first aspect, the utility model provides an electric trunk lid opening and closing mechanism, comprising: an electric support rod, a gas spring, and a first curved tube hinge and a second curved tube hinge symmetrically arranged on both sides of a trunk lid body; the electric support rod is arranged on the first curved tube hinge, the gas spring is arranged on the second curved tube hinge, and the electric support rod and the gas spring are symmetrically arranged, and the telescopic movement of the electric support rod and the gas spring drives the first curved tube hinge and the second curved tube hinge to rotate around the axis.

[0009] As an optional embodiment, the first bend tube hinge and the second bend tube hinge both include a bend tube and a rotating shaft and a protruding bracket ball pin arranged at one end of the bend tube; both ends of the electric strut and the gas spring are provided with concave ball sockets, the concave ball socket at one end is connected to the protruding bracket ball pin, and the concave ball socket at the other end is connected to the vehicle body.

[0010] As an optional implementation, the telescopic movement of the electric support rod and the gas spring drives the first elbow hinge and the second elbow hinge to rotate around the rotation axis.

[0011] As an optional embodiment, the mouth of the concave ball socket is provided with a retaining spring, and the retaining spring is used to retain the protruding bracket ball pin after the protruding bracket ball pin is pushed into the concave ball socket.

[0012] As an optional embodiment, the electric support rod includes a retractable lead screw, a mechanical spring arranged on the lead screw, and a motor; through the forward rotation of the motor, the lead screw is driven to drive the mechanical spring to contract, and at the same time drive the gas spring to contract, thereby driving the first bend tube hinge and the second bend tube hinge to rotate counterclockwise around the axis to achieve the opening of the trunk lid.

[0013] As an optional implementation, the motor is reversed to drive the lead screw to extend the mechanical spring and the gas spring, thereby driving the first bend hinge and the second bend hinge to rotate clockwise around the axis to close the trunk lid.

[0014] As an optional embodiment, the gas spring contains compressed gas, which generates a reverse supporting torque through the mechanical spring of the electric strut and the compressed gas in the gas spring and acts on the first bend hinge and the second bend hinge to balance the gravity torque generated by the trunk lid body.

[0015] As an optional implementation, the electric strut is further provided with a damper for preventing imbalance between the supporting moment and the gravity moment.

[0016] As an optional implementation, one end of the first elbow hinge and the second elbow hinge is connected to the trunk lid body, and the other end is connected to the vehicle body.

[0017] In a second aspect, the utility model provides an electric luggage case, comprising: a luggage case cover body and the electric luggage case cover opening and closing mechanism according to the first aspect arranged on the luggage case cover body.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model proposes an electric trunk lid opening and closing mechanism and an electric trunk. A first curved tube hinge and a second curved tube hinge are symmetrically arranged on both sides of the trunk lid body. The electric support rod and the gas spring are symmetrically arranged on the curved tube hinges on both sides. Since the diameter of the gas spring is relatively thin, the system motion envelope can be reduced during the opening and closing process, thereby improving the utilization rate of the trunk space. Compared with the tension spring structure of the single drive structure, the utility model mechanism improves the convenience of production and assembly and improves the assembly production efficiency; compared with the dual drive structure, the utility model mechanism saves procurement costs.

[0020] The utility model provides an electric trunk lid opening and closing mechanism and an electric trunk, wherein an electric support rod and a gas spring are arranged on a bent tube hinge by connecting an inner concave ball socket with a protruding bracket ball pin, after the inner concave ball socket is pushed into the protruding bracket ball pin, it can be clamped by a retaining spring and is not easy to fall out, and at the same time, the assembly method of the inner concave ball socket and the protruding bracket ball pin is convenient and quick, thereby improving the assembly efficiency of final assembly production.

[0021] The utility model provides an electric trunk lid opening and closing mechanism and an electric trunk, which drives the electric support rod to contract and extend through the forward and reverse rotation of the built-in motor of the electric support rod, and then drives the contraction and extension movement of the gas spring, thereby driving the bent tube hinge to rotate around the rotation axis to realize the opening and closing of the trunk lid.

[0022] The utility model provides an electric trunk lid opening and closing mechanism and an electric trunk, wherein a reverse supporting torque is generated by a mechanical spring of an electric strut and compressed gas in a gas spring and acts on a rotating shaft of a bent tube hinge, and a gravity torque generated by the gravity of a trunk lid body is balanced by the supporting torque generated on the rotating shaft; at the same time, a damper is used to prevent the imbalance between the supporting torque acting on the rotating shaft and the gravity torque of the trunk lid body, so that the trunk lid can be suspended at any position and has a certain weight bearing capacity.

[0023] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 A schematic diagram of an electric trunk lid opening and closing mechanism provided in Example 1 of the utility model;

[0026] Figure 2 A schematic diagram of a bent pipe hinge provided in Example 1 of the utility model;

[0027] Figure 3 A schematic diagram of an electric support rod provided in Example 1 of the utility model;

[0028] Figure 4 A schematic diagram of the connection between the concave ball socket and the protruding bracket ball pin provided in Example 1 of the utility model;

[0029] Among them, 1. electric support rod, 1-1. damper, 1-2. motor, 1-3. screw, 1-4. nut, 1-5. spring, 1-6. concave ball socket, 1-7. retaining spring, 2. first elbow hinge, 2-1. protruding bracket ball pin, 2-2. rotating shaft, 2-3. elbow, 3. gas spring, 4. second elbow hinge, 5. trunk lid body, 6. trunk lid lock. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that the terms "include" and "comprise" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] Example 1

[0035] This embodiment provides an electric trunk lid opening and closing mechanism, such as Figure 1 As shown, it includes: an electric support rod 1, a gas spring 3, and a first curved tube hinge 2 and a second curved tube hinge 4 symmetrically arranged on both sides of a trunk lid body 5; the electric support rod 1 is arranged on the first curved tube hinge 2, the gas spring 3 is arranged on the second curved tube hinge 4, and the electric support rod 1 and the gas spring 3 are symmetrically arranged, and the telescopic movement of the electric support rod 1 and the gas spring 3 drives the first curved tube hinge 2 and the second curved tube hinge 4 to rotate around the axis.

[0036] As an optional embodiment, the first elbow hinge 2 and the second elbow hinge 4 are symmetrically arranged on both sides of the trunk lid body 5, one end of which is connected to the trunk lid body 5, and the other end is connected to the vehicle body parcel frame.

[0037] As an optional embodiment, the first elbow hinge 2 and the second elbow hinge 4 have the same structure. Figure 2 As shown, taking the first elbow hinge 2 as an example, the first elbow hinge 2 and the second elbow hinge 4 both include an elbow 2-3, a rotating shaft 2-2 and a protruding bracket ball pin 2-1 provided at one end of the elbow 2-3;

[0038] Among them, the telescopic movement of the electric strut 1 and the gas spring 3 drives the first elbow hinge 2 and the second elbow hinge 4 to rotate around the rotation axis 2-2, and the protruding bracket ball pin 2-1 is used to connect with the electric strut 1 and the gas spring 3.

[0039] In this embodiment, if Figure 3 As shown, both ends of the electric strut 1 are provided with a concave ball socket 1-6, the concave ball socket 1-6 at one end of the electric strut 1 is connected to the protruding bracket ball pin 2-1 of the bent tube hinge, and the concave ball socket 1-6 at the other end is connected to the protruding bracket ball pin 2-1 of the vehicle body bracket.

[0040] In this embodiment, the gas spring 3 and the electric strut 1 are symmetrically arranged on the bent tube hinge on the other side, and the connection method at both ends is the same as the connection between the concave ball socket 1-6 of the electric strut and the protruding bracket ball pin 2-1; specifically, concave ball sockets 1-6 are provided at both ends of the gas spring 3, the concave ball socket 1-6 at one end of the gas spring 3 is connected to the protruding bracket ball pin 2-1 of the bent tube hinge bracket, and the concave ball socket 1-6 at the other end is connected to the protruding bracket ball pin 2-1 of the vehicle body bracket.

[0041] It is understandable that the electric strut can be arranged on the left elbow hinge and the gas spring can be arranged on the right elbow hinge, or the electric strut can be arranged on the right elbow hinge and the gas spring can be arranged on the left elbow hinge.

[0042] As an optional implementation, Figure 4 As shown, the mouth of the concave ball socket 1-6 is provided with a retaining spring 1-7. After the concave ball socket 1-6 is pushed into the protruding bracket ball pin 2-1, the protruding bracket ball pin 2-1 can be clamped by the retaining spring 1-7 and is not easy to fall out. Since the concave ball socket is connected to the protruding bracket ball pin, the assembly method is convenient and fast, which improves the assembly efficiency of the final assembly production. At the same time, since the diameter of the gas spring is relatively thin, the system movement envelope is reduced during the opening and closing process, thereby improving the space utilization rate of the luggage compartment.

[0043] In this embodiment, the electric support rod 1 includes a retractable screw rod 1-3, a mechanical spring 1-5 arranged on the screw rod 1-3, a motor 1-2 and a damper 1-1.

[0044] Specifically:

[0045] One end of the screw rod 1-3 is connected to the motor 1-2, and the screw rod 1-3 can move retractably through the nut 1-4;

[0046] The motor 1-2 rotates forward, and drives the mechanical spring 1-5 to contract through the screw rod 1-3 and the nut 1-4, which is converted into a contraction movement of the electric strut 1. The contraction of the electric strut 1 drives the first elbow hinge to rotate counterclockwise around the rotation axis 2-2. At the same time, there is compressed gas in the cylinder of the gas spring 3. The contraction of the electric strut 1 also drives the contraction of the gas spring 3. The contraction of the gas spring 3 drives the second elbow hinge to rotate counterclockwise around the rotation axis 2-2, thereby realizing the opening of the trunk lid;

[0047] The motor 1-2 reverses and drives the mechanical spring 1-5 to extend through the screw rod 1-3 and the nut 1-4, which is converted into an extending movement of the electric strut 1. The extension of the electric strut 1 drives the bent tube hinge to rotate clockwise around the rotation axis 2-2. At the same time, the extension of the electric strut 1 also drives the extension of the gas spring 3. The extension of the gas spring 3 drives the second bent tube hinge to rotate clockwise around the rotation axis 2-2, thereby achieving the closing of the trunk lid.

[0048] In this embodiment, a reverse supporting torque is generated by the mechanical spring 1-5 of the electric strut 1 and the compressed gas in the gas spring 3 and acts on the rotating shaft 2-2 of the bent tube hinge. The gravitational torque generated by the gravity of the trunk lid body is balanced by the supporting torque generated by the rotating shaft 2-2.

[0049] As an optional embodiment, the damper 1-1 can prevent the imbalance between the supporting torque acting on the rotating shaft 2-2 and the gravity torque of the trunk lid body, causing the trunk lid to have an opening or closing movement tendency, allowing the trunk lid to hover at any position and have a certain weight-bearing capacity, and by achieving hovering at any position, the setting of any electric opening position for people of different heights can be met.

[0050] In this embodiment, the first elbow hinge and the second elbow hinge are driven to rotate around the axis by the telescopic movement of the electric support rod and the gas spring to realize the opening and closing of the trunk lid; specifically, the control method of the above-mentioned electric trunk lid opening and closing mechanism includes:

[0051] Opening process: when the opening switch is pressed or the opening signal is received, the ECU control system controls the trunk lid suction lock 6 to unlock, and the motor 1-2 built into the electric strut rotates forward, driving the mechanical spring 1-5 to contract through the screw rod 1-3 and the nut 1-4, which is converted into the contraction movement of the electric strut 1. The contraction of the electric strut 1 drives the first bend hinge to rotate counterclockwise around the rotation axis 2-2. At the same time, there is compressed gas in the cylinder of the gas spring 3. The contraction of the electric strut 1 also drives the contraction of the gas spring 3. The contraction of the gas spring 3 drives the second bend hinge to rotate counterclockwise around the rotation axis 2-2, thereby realizing the opening of the trunk lid. The ECU controller determines the opening angle of the trunk lid, that is, the opening position, by recording the number of Hall signals generated by the rotation of the motor 1-2.

[0052] Closing process: when the closing switch is pressed or a closing signal is received, the ECU control system controls the motor 1-2 built into the electric strut to reverse, and drives the mechanical spring 1-5 to extend through the screw rod 1-3 and the nut 1-4, which is converted into an extension movement of the electric strut 1. The extension of the electric strut 1 drives the bent tube hinge to rotate clockwise around the rotation axis 2-2. At the same time, the extension of the electric strut 1 also drives the extension of the gas spring 3. The extension of the gas spring 3 drives the second bent tube hinge to rotate clockwise around the rotation axis 2-2, thereby achieving the closing of the trunk lid and triggering the half-lock signal of the trunk lid lock 6. The lock performs the suction action to the fully locked position, and the fully locked position signal is used to determine that the closed position has been reached.

[0053] During the opening or closing process, the ECU controller can detect the current and Hall signal changes of motor 1-2, and can perform anti-pinch identification and anti-pinch protection; at the same time, during operation, according to the load changes, the ECU control system also calculates the running speed of motor 1-2 through the Hall signal. If the motor running speed is greater than the set expected target speed, the PWM is reduced to slow down the motor speed. If the motor running speed is less than the set expected target speed, the PWM is increased to accelerate the motor.

[0054] It is understandable that the relevant algorithms executed by the ECU controller to determine the opening angle of the trunk lid, anti-pinch identification, calculation of the motor running speed, etc. can adopt existing algorithms and will not be elaborated on.

[0055] The electric trunk lid opening and closing mechanism provided in the above embodiment has a first curved tube hinge and a second curved tube hinge symmetrically arranged on both sides of the trunk lid body, and the electric strut and the gas spring are symmetrically arranged on the curved tube hinges on both sides. Compared with the existing structure: ① The electric trunk lid opening and closing mechanism of this embodiment reduces the motion envelope of the opening and closing mechanism during the opening and closing process, thereby improving the space utilization rate of the trunk. ② Compared with the tension spring structure, the electric trunk lid opening and closing mechanism of this embodiment improves the convenience of production and assembly, and improves the assembly production efficiency. ③ Compared with the dual-drive structure, the electric trunk lid opening and closing mechanism of this embodiment saves procurement costs. In general, the electric trunk lid opening and closing mechanism of this embodiment has a simple structural layout, occupies a small space, is easy to produce and assemble, has good stability, and can hover in the entire area, and has good application prospects.

[0056] Example 2

[0057] This embodiment provides an electric luggage case, comprising a luggage case cover body and the electric luggage case cover opening and closing mechanism described in Embodiment 1 arranged on the luggage case cover body.

[0058] It should be noted that the electric trunk lid opening and closing mechanism and electric trunk provided by the utility model are a structural scheme. As for the various equipment units involved therein, the specific structures for realizing the functions they should realize already exist in the prior art, and the protocols, software or programs involved in the work processing therebetween also already exist in the prior art. Those skilled in the art are fully aware that the utility model does not make any improvements to the individual units of each device, and therefore does not involve the content of the software, but relies on the organic integration of various components into a whole, that is, providing a structural scheme.

[0059] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An electric trunk lid opening and closing mechanism, characterized in that: include: An electric strut, a gas spring, and a first curved tube hinge and a second curved tube hinge symmetrically arranged on both sides of a trunk lid body; the electric strut is arranged on the first curved tube hinge, the gas spring is arranged on the second curved tube hinge, and the electric strut and the gas spring are symmetrically arranged, and the telescopic movement of the electric strut and the gas spring drives the first curved tube hinge and the second curved tube hinge to rotate around the axis.

2. The electric trunk lid opening and closing mechanism according to claim 1, characterized in that: The first curved tube hinge and the second curved tube hinge both include a curved tube and a rotating shaft and a protruding bracket ball pin arranged at one end of the curved tube; both ends of the electric strut and the gas spring are provided with concave ball sockets, the concave ball socket at one end is connected to the protruding bracket ball pin, and the concave ball socket at the other end is connected to the vehicle body.

3. The electric trunk lid opening and closing mechanism according to claim 2, characterized in that: The telescopic movement of the electric support rod and the gas spring drives the first curved tube hinge and the second curved tube hinge to rotate around the rotation axis.

4. The electric trunk lid opening and closing mechanism according to claim 2, characterized in that: The mouth of the inner concave ball socket is provided with a retaining spring, and the retaining spring is used for retaining the protruding bracket ball pin after the inner concave ball socket is pushed into the protruding bracket ball pin.

5. The electric trunk lid opening and closing mechanism according to claim 1, characterized in that: The electric support rod includes a retractable lead screw, a mechanical spring arranged on the lead screw and a motor; through the forward rotation of the motor, the lead screw is driven to drive the mechanical spring to contract, and at the same time drive the gas spring to contract, thereby driving the first curved tube hinge and the second curved tube hinge to rotate counterclockwise around the axis to realize the opening of the trunk lid.

6. An electric trunk lid opening and closing mechanism as claimed in claim 5, characterized in that: Through the reverse rotation of the motor, the lead screw is driven to extend the mechanical spring and the gas spring, thereby driving the first elbow hinge and the second elbow hinge to rotate clockwise around the axis to close the trunk lid.

7. The electric trunk lid opening and closing mechanism according to claim 5, characterized in that: The gas spring contains compressed gas, which generates a reverse supporting torque through the mechanical spring of the electric strut and the compressed gas in the gas spring and acts on the first curved tube hinge and the second curved tube hinge to balance the gravity torque generated by the trunk lid body.

8. An electric trunk lid opening and closing mechanism as claimed in claim 7, characterized in that: The electric strut is also provided with a damper for preventing the imbalance between the supporting moment and the gravity moment.

9. The electric trunk lid opening and closing mechanism according to claim 1, characterized in that: One end of the first elbow hinge and the second elbow hinge is connected to the trunk lid body, and the other end is connected to the vehicle body.

10. An electric luggage case, characterized in that: The utility model comprises a trunk cover body and an electric trunk cover opening and closing mechanism as claimed in any one of claims 1 to 9 and arranged on the trunk cover body.

Images