Backpack, trunk door assembly, and vehicle

Abstract

The utility model discloses a backpack, spare trunk door assembly and vehicle, the backpack includes: box body, is suitable for installing on the back -up door, and the box body defines the cavity of rear side open, box lid, relative box body between open position and closed position movable, in the closed position, the box lid covers the open side of box body, in the open position, the box lid opens the open side of cavity, drive motor is connected with the box lid, is used for driving the box lid movable between open position and closed position. According to the backpack of the utility model, the box lid can be flexibly movable between the open position and the closed position relative to the box body through the drive motor receiving control signal, the automation of opening and closing of the backpack can be realized, the use convenience and the protective property are improved, and the diversified vehicle scene is adapted.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a backpack, a trunk door assembly, and a vehicle. Background Technology

[0002] In the field of automotive storage, backpack-type storage products have been developed to address the problem of insufficient trunk space. However, existing car backpacks are lacking in user experience and functional design. Their operation is easily affected by various factors such as user status, trunk environment, and external weather, resulting in limited efficiency in storing and retrieving items and poor convenience. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a backpack that can automatically open and close while expanding storage space, improving ease of use and protection, and adapting to diverse vehicle usage scenarios.

[0004] This utility model also proposes a trunk door assembly having the above-mentioned backpack.

[0005] This utility model also proposes a vehicle having the above-mentioned trunk door assembly.

[0006] A backpack according to a first aspect of the present invention includes: a case body adapted to be mounted on a rear door, the case body defining a rear-open cavity; a lid movable relative to the case body between an open position and a closed position, wherein in the closed position the lid covers the open side of the case body, and in the open position the lid opens the open side of the cavity; a drive motor connected to the lid for driving the lid to move between the open position and the closed position; and a transmission mechanism, wherein the motor shaft of the drive motor is connected to the lid via the transmission mechanism, and drives the lid to move between the open position and the closed position via the transmission mechanism.

[0007] According to this utility model, the backpack receives control signals through a drive motor, enabling the lid to move flexibly between the open and closed positions relative to the body. This allows for automated opening and closing of the backpack, improving ease of use and protection, and adapting to diverse vehicle usage scenarios.

[0008] In some embodiments, the transmission mechanism is a linkage mechanism.

[0009] In some embodiments, the transmission mechanism includes: a first connecting rod, one end of which is fixed to the motor shaft; a second connecting rod, both ends of which are rotatably connected to the other end of the first connecting rod and the cover, respectively, and a first hinge portion is provided between the two ends of the second connecting rod; a third connecting rod, one end of which is rotatably connected to the housing, and a second hinge portion is provided between the two ends of the third connecting rod, the second hinge portion being rotatably connected to the first hinge portion; and a fourth connecting rod, both ends of which are rotatably connected to the other end of the third connecting rod and the cover, respectively.

[0010] In some embodiments, the backpack further includes: a first fixing frame, which is fixed relative to the case body, and one end of the first connecting rod and one end of the third connecting rod are rotatably mounted on the first fixing frame; and / or, a second fixing frame, which is fixed to the case lid, and one end of the second connecting rod and one end of the fourth connecting rod are rotatably mounted on the second fixing frame.

[0011] In some embodiments, the number of transmission mechanisms is multiple, and the multiple transmission mechanisms are arranged at intervals in the left-right direction of the vehicle.

[0012] In some embodiments, the backpack further includes a tabletop disposed on the lid and located on the side of the lid facing the body of the backpack.

[0013] In some embodiments, the tabletop is movable relative to the lid between an extended position and a retracted position, wherein in the retracted position the tabletop is located inside the lid, and in the extended position the lid is located in the open position and the tabletop is located in the extended position, at least a portion of the tabletop extends to the outside of the lid.

[0014] In some embodiments, the lid of the box is provided with a first guide rail extending along the width direction of the lid, and the table is provided with a second guide rail, the first guide rail and the second guide rail being slidably engaged.

[0015] A trunk door assembly according to a second aspect of the present invention includes a trunk door and a backpack according to a first aspect of the present invention, wherein the backpack body is fixed to the trunk door.

[0016] According to the present invention, the trunk door assembly receives a control signal through a drive motor, enabling the lid to move flexibly between the open and closed positions relative to the trunk body. This allows for the automated opening and closing of the backpack, improving ease of use and protection, and adapting to diverse vehicle usage scenarios.

[0017] The vehicle according to the third aspect of the present invention includes a trunk door assembly according to the second aspect of the present invention.

[0018] According to the present invention, the vehicle receives a control signal through a drive motor, which enables the lid to move flexibly between the open and closed positions relative to the body of the backpack, thereby achieving automated opening and closing of the backpack, improving ease of use and protection, and adapting to diverse usage scenarios.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a backpack according to an embodiment of the present utility model; Figure 2 yes Figure 1 The diagram shows a structural representation of the backpack from another angle. Figure 3 yes Figure 1 A schematic diagram of the transmission mechanism shown; Figure 4 yes Figure 3 A schematic diagram of the transmission mechanism from another angle; Figure 5 yes Figure 1 The diagram shows the structure of the tabletop.

[0021] Figure label: 100. Backpack; 10. Box; 11. Cavity; 20. Box lid; 21. Inner panel of box lid; 22. Outer panel of box lid; 23. First guide rail; 30. Motor shaft; 40. Transmission mechanism; 41. First connecting rod; 42. Second connecting rod; 421. First hinge; 43. Third connecting rod; 431. Second hinge; 44. Fourth connecting rod; 50. First fixing frame; 51. First plate; 52. First folded edge; 53. First fixing hole; 60. Second fixing frame; 61. Second plate; 62. Second folded edge; 70. Tabletop; 71. Second guide rail; 80. Install the bracket. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] The following is for reference. Figures 1-5 A backpack 100 according to a first aspect embodiment of the present invention is described.

[0024] like Figures 1-5 As shown, the backpack 100 according to the first aspect of the present invention includes: a box body 10, a box cover 20, a drive motor and a transmission mechanism 40.

[0025] Specifically, the housing 10 is adapted to be installed on the rear door, and the housing 10 defines a rear-open cavity 11; the cover 20 is movable relative to the housing 10 between an open position and a closed position. In the closed position, the cover 20 covers the open side of the housing 10, and in the open position, the cover 20 opens the open side of the cavity 11; a drive motor is connected to the cover 20 and is used to drive the cover 20 to move between the open position and the closed position; the motor shaft 30 of the drive motor is connected to the cover 20 through a transmission mechanism 40, and drives the cover 20 to move between the open position and the closed position through the transmission mechanism 40.

[0026] like Figure 1 and Figure 2 As shown, the front side of the box 10, facing the rear door, is connected to and fixed to the rear side of the rear door. The rear side of the box 10 is open, defining a cavity 11, which provides space for storing items. The shape of the opening of the box 10 can be square, round, oval, polygonal, etc. Figure 1 As shown, the opening of the case 10 is rectangular, and the four corners of the case 10 are rounded to avoid the risk of bumps and knocks that may be caused by right-angle structures, thus improving the spatial adaptability and aesthetics of the backpack 100 and the rear door. The specific size and shape of the case 10 are adapted to the installation requirements of the rear door, and it can be stably fixed to the rear door. The fixing method can be welding, bolts, or clips. By setting the case 10 to define the cavity 11, additional storage space can be provided for items.

[0027] In some examples, to further enhance the structural stability and ease of installation of the enclosure 10, reinforcing ribs are arranged on the front surface of the enclosure 10, and the reinforcing ribs can be in the shape of an "I". By setting reinforcing ribs, the load-bearing strength of the enclosure 10 can be effectively enhanced, preventing the enclosure 10 from deforming or cracking due to excessive force, making it suitable for outdoor use scenarios such as self-driving and camping.

[0028] In some examples, such as Figure 1 As shown, the reinforcing ribs are provided with mounting holes. The box body 10 can be directly fixed to the rear door through the mounting holes and the bolts and buckles. The bolts and buckles are easy to connect and install, and the box body is detachable, which facilitates the overall maintenance, replacement or position adjustment of the backpack 100.

[0029] like Figure 1and Figure 2 As shown, when the lid 20 is in the closed position, it tightly seals the open side of the box body 10, ensuring that items inside the cavity 11 are not exposed to external dust, rainwater, or other impurities. The lid 20 and the box body 10 together form a sealed cavity 11, isolating it from external environmental influences. When the lid 20 is in the open position, it moves away from the box body 10, allowing the open side of the cavity 11 to be fully opened, ensuring unobstructed access for items and facilitating quick and easy retrieval, thus improving usability. For example, the lid 20 can rotate relative to the box body 10 about the bottom of the box body 10, or move up and down vertically. By allowing the lid 20 to move flexibly between the open and closed positions, the cavity 11 is sealed and protected, and can be opened and closed quickly, ensuring the cleanliness and safety of items and improving the efficiency of retrieving and placing items.

[0030] like Figures 1-4 As shown, the drive motor provides power for the position switching of the lid 20 and is directly connected to the lid 20. The drive motor receives control signals and drives the lid 20 to move smoothly between the open and closed positions, eliminating the need for manual operation by the user and achieving automated control of the backpack 100's opening and closing. Simultaneously, the motor-driven lid 20 automatically locks when closed and can be unlocked simply by a control signal. Compared to traditional zipper structures, this reduces the risk of being pried open and enhances physical protection. The control signal is transmitted via a switch button, which can be located in an easily accessible position inside the vehicle, such as on the dashboard or passenger side dashboard, or on the vehicle's remote key. This avoids exposing the switch button, preventing accidental or malicious activation of the opening and closing mechanism, thus preventing theft and reducing the risk of property theft. By using a drive motor to replace the traditional manual opening and closing method, the backpack 100 achieves automated opening and closing, reducing operating steps, improving convenience, and enhancing the backpack 100's anti-theft performance.

[0031] like Figures 1-4 As shown, the motor shaft 30 of the drive motor is connected to the cover 20 via a transmission mechanism 40, and the transmission mechanism 40 drives the cover 20 to move between the open and closed positions. For example, the transmission mechanism 40 can be a gear transmission mechanism, consisting of a driving gear sleeved on the motor shaft 30 meshing with a driven gear connected to the rotating shaft of the cover 20. Alternatively, the transmission mechanism 40 can be a linkage transmission mechanism, which converts the rotation of the motor shaft 30 into the flipping or translating motion of the cover 20 through multiple hinged linkages. Or, the transmission mechanism 40 can be a lead screw transmission assembly, where a lead screw driven by the drive motor engages with a nut connected to the cover 20, converting the rotational motion into the linear opening and closing motion of the cover 20. By stably transmitting the drive motor power through the transmission mechanism 40, the problems of jamming and uneven force on the cover 20 during direct drive can be avoided, resulting in smoother opening and closing.

[0032] According to the embodiment of the present utility model, the backpack 100 receives a control signal through a drive motor, which enables the lid 20 to move flexibly between the open and closed positions relative to the body 10, thereby realizing the automatic opening and closing of the backpack 100, improving ease of use and protection, and adapting to diverse vehicle usage scenarios.

[0033] In some embodiments of this utility model, such as Figures 1-4 As shown, the transmission mechanism 40 can be a linkage mechanism. For example, the transmission mechanism 40 can be a crank-connecting rod mechanism, where the motor shaft 30 drives the crank to rotate, and the connecting rod pulls the lid 20 to achieve flipping and opening / closing. Alternatively, it can be a four-bar linkage mechanism, where the motor shaft 30 drives the four linkages to move the lid 20 along a set trajectory. Another option is a double rocker linkage mechanism, where the motor shaft 30 drives the main rocker to swing, and the connecting rod transmission allows the lid 20 to smoothly slide open and close. Transmitting power through a linkage mechanism effectively buffers the impact force when the drive motor is running, preventing jamming or collisions during the opening and closing of the lid 20, resulting in smoother operation.

[0034] In some embodiments of this utility model, such as Figures 1-4 As shown, the transmission mechanism 40 may include: a first connecting rod 41, a second connecting rod 42, a third connecting rod 43, and a fourth connecting rod 44. One end of the first connecting rod 41 is fixed to the motor shaft 30. The two ends of the second connecting rod 42 are rotatably connected to the other end of the first connecting rod 41 and the cover 20, respectively, and a first hinge portion 421 is provided between the two ends of the second connecting rod 42. One end of the third connecting rod 43 is rotatably connected to the housing 10, and a second hinge portion 431 is provided between the two ends of the third connecting rod 43. The second hinge portion 431 is rotatably connected to the first hinge portion 421. The two ends of the fourth connecting rod 44 are rotatably connected to the other end of the third connecting rod 43 and the cover 20, respectively.

[0035] In some examples, such as Figures 1-4 As shown, the front end of the first connecting rod 41 is rotatably connected to the motor shaft 30 via a spline connection. The drive motor can drive the first connecting rod 41 to rotate, providing initial driving force for the entire transmission mechanism 40. At the same time, the spline connection effectively restricts the relative rotation between the first connecting rod 41 and the motor shaft 30, preventing slippage or displacement during power transmission.

[0036] In some examples, such as Figures 1-4As shown, the upper end of the second connecting rod 42 is rotatably connected to the transmission rod pin at the rear end of the first connecting rod 41, forming a freely rotatable hinge point. The lower end of the second connecting rod 42 is rotatably connected to the cover 20, which can convert the power transmitted by the transmission mechanism 40 into the opening and closing action of the cover 20. A first hinge portion 421 is provided between the two ends of the second connecting rod 42. The first hinge portion 421 is always located below the connection position between the second connecting rod 42 and the first connecting rod 41. The first hinge portion 421 can be a hole or a transmission rod pin. The second connecting rod 42 plays the role of power transmission and steering, and the first hinge portion 421 provides a connection fulcrum for the third connecting rod 43.

[0037] In some examples, such as Figures 1-4 As shown, the transmission pin at the front end of the third link 43 is rotatably connected to the housing 10, forming a fixed rotation base point. The connection position between the third link 43 and the housing 10 is located below and behind the connection position between the first link 41 and the housing 10. A second hinge portion 431 is provided between the two ends of the third link 43. The second hinge portion 431 can be a hole or a transmission pin, which can cooperate with the first hinge portion 421. The first hinge portion 421 and the second hinge portion 431 are rotatably connected. Through the cooperation of the first hinge portion 421 and the second hinge portion 431, a stable rotational connection can be formed, thereby realizing the power transmission and motion coordination between the second link 42 and the third link 43.

[0038] In some examples, such as Figures 1-4 As shown, the hole at the upper end of the fourth link 44 is rotatably connected to the transmission pin at the rear end of the third link 43, forming a hinge point that can rotate flexibly. The transmission pin at the lower end of the fourth link 44 is rotatably connected to the cover 20. When the cover 20 is in the open position, the connection position between the fourth link 44 and the cover 20 is located below and behind the connection position between the second link 42 and the cover 20. Furthermore, the linkage mechanism composed of the first link 41, the second link 42, the third link 43, and the fourth link 44 is symmetrically arranged about the central axis of the first hinge part 421 and the second hinge part 431.

[0039] In this embodiment, when the drive motor receives a control signal, the motor shaft 30 drives the first connecting rod 41 to rotate. For example, when the drive motor receives a signal to open the control box cover 20, the motor shaft 30 drives the first connecting rod 41 to rotate clockwise, thereby causing the second connecting rod 42 to move downward along a preset trajectory. The first hinge portion 421 on the second connecting rod 42 drives the third connecting rod 43 to rotate clockwise as well. The third connecting rod 43 drives the fourth connecting rod 44 to move downward along a preset trajectory. The fourth connecting rod 44 and the second connecting rod 42 work together to move the box cover 20 from the closed position to the open position.

[0040] Therefore, the rotation of the drive motor can be converted into the opening and closing action of the lid 20 through the transmission mechanism 40, ensuring the smooth movement of the lid 20. At the same time, the opening and closing stroke requirements of lids 20 of different sizes can be adapted by adjusting the lengths of the first connecting rod 41, the second connecting rod 42, the third connecting rod 43, and the fourth connecting rod 44, as well as the positions of the first hinge part 421 and the second hinge part 431.

[0041] In this embodiment, the multi-link transmission structure described above ensures efficient power transmission from the drive motor to the cover 20, enabling smooth and controllable opening and closing of the cover 20. The hinged connection via pin engagement and spline connection enhances the connection stability and power transmission efficiency of the transmission mechanism 40, reducing wear and tear and the risk of failure during long-term use.

[0042] In some embodiments of this utility model, such as Figures 1-4 As shown, the backpack 100 may further include: a first fixing frame 50, which is fixed relative to the case body 10; one end of the first connecting rod 41 and one end of the third connecting rod 43 are rotatably mounted on the first fixing frame 50; the first connecting rod 41 is located above and in front of the third connecting rod 43. The first fixing frame 50 is fixed relative to the case body 10, for example, as... Figure 2 As shown, the first fixing bracket 50 can pass through the front surface of the box 10 and connect to the rear door, improving the overall connection strength between the backpack 100 and the vehicle. Alternatively, the first fixing bracket 50 can be directly fixed to the box 10, simplifying the installation process and reducing modifications to the structure of the box 10. The shape of the first fixing bracket 50 can be as follows: Figure 3 and Figure 4 As shown, the portion of the first fixing frame 50 connected to the first connecting rod 41 and the third connecting rod 43 forms a first plate 51 perpendicular to the left-right direction. The front end of the first plate 51 is bent towards both sides in the left-right direction of the vehicle to form a first folded edge 52. The first folded edge 52 is provided with a first fixing hole 53. The first fixing frame 50 can be fixed relative to the box body 10 through the first fixing hole 53 and by means of bolts and buckles. By adding the first fixing frame 50 to the backpack 100, the fixing method can be selected according to the installation strength requirements, thereby improving the adaptability and reliability of the backpack 100 in different vehicle models and different usage scenarios.

[0043] In some embodiments of this utility model, such as Figures 1-4 As shown, the backpack 100 may further include: a second fixing frame 60, which is fixed to the lid 20. One end of the second connecting rod 42 and one end of the fourth connecting rod 44 are rotatably mounted on the second fixing frame 60. When the transmission mechanism 40 moves, the relative positions of the second connecting rod 42 and the fourth connecting rod 44 also change. When the lid 20 is in the open position, the second connecting rod 42 is located in front of and above the fourth connecting rod 44. The shape of the second fixing frame 60 can be as follows: Figure 3 and Figure 4 As shown, the part of the second fixing frame 60 connected to the second connecting rod 42 and the fourth connecting rod 44 forms a second plate 61 that is perpendicular to the left and right direction. One side edge of the second plate 61 is bent in the left and right direction to form a second folded edge 62. The second folded edge 62 is provided with a second fixing hole. The second fixing frame 60 can be detachably fixed to the box cover 20 by means of the second fixing hole and bolts and buckles, which not only ensures the connection strength, but also facilitates subsequent maintenance and component replacement, further improving the stability and scene adaptability of the backpack 100.

[0044] In some embodiments of this utility model, such as Figures 1-4 As shown, there can be multiple transmission mechanisms 40, which can be arranged at intervals in the left-right direction of the vehicle. For example, there can be two, four, six, or more transmission mechanisms 40. Figures 1-3 As shown, to ensure stable force distribution during the movement of the tailgate backpack, the same linkage mechanism can be designed on the other side of the backpack. Compared to only one side of the linkage being stressed, this results in more stable operation. There can be two transmission mechanisms 40, arranged on the left and right sides of the backpack 100 respectively. The number of transmission mechanisms 40 can be flexibly set according to the backpack size, load-bearing requirements, and motion precision requirements. All transmission mechanisms 40 must be evenly spaced in the left-right direction of the vehicle to ensure that the force on the backpack is evenly transmitted laterally during opening and closing.

[0045] In some embodiments of this utility model, such as Figures 1-5 As shown, the backpack 100 may further include a tabletop 70, which is mounted on the lid 20 and located on the side of the lid 20 facing the body 10. The tabletop 70 is fixed to the lid 20. When the lid 20 is in the open position, the tabletop 70 can be placed horizontally. In outdoor scenarios such as self-driving or camping, the tabletop 70 can provide a convenient temporary operating space, reducing the burden of carrying extra equipment and greatly improving the convenience of outdoor travel.

[0046] In some embodiments of this utility model, such as Figures 1-5 As shown, the tabletop 70 is movable relative to the lid 20 between an extended position and a retracted position. In the retracted position, the tabletop 70 is located inside the lid 20. When the lid 20 is in the open position and the tabletop 70 is in the extended position, at least a portion of the tabletop 70 extends to the outside of the lid 20. The tabletop 70's movable position relative to the lid 20 between the extended and retracted positions can be achieved for example: the tabletop 70 can be connected to the lid 20 via a telescopic rod, with the rod extending or retracting to achieve push-pull functionality. Alternatively, the tabletop 70 can be connected to the lid 20 via a linkage mechanism, with the linkage rotating to cause the tabletop 70 to extend and translate. Or, the tabletop 70 can be connected to the lid 20 via a guide rail mechanism, with the guide rail sliding to achieve push-pull functionality.

[0047] In this embodiment, when the lid 20 is in the open position and the tabletop 70 is in the extended position, the tabletop 70 extends partially or completely to the outside of the lid 20, extending the length of the work surface to accommodate multiple users or the placement of large items. When the lid 20 is in the closed position, or when the lid 20 is in the open position and the tabletop 70 is in the retracted position, the tabletop 70 is retracted and entirely stored inside the lid 20, without occupying extra space or affecting the normal closing and sealing function of the lid 20. By setting the tabletop 70 as a movable structure, flexible storage and on-demand extension of the tabletop 70 can be achieved, ensuring structural safety and spatial neatness while expanding the work surface according to usage needs, adapting to more outdoor scenarios.

[0048] In some embodiments of this utility model, such as Figures 1-5 As shown, the lid 20 may be provided with a first guide rail 23 extending along the width direction of the lid 20, and the table 70 is provided with a second guide rail 71. The first guide rail 23 and the second guide rail 71 are slidably engaged. Along the width direction of the lid 20... Figure 2 As shown in the front-back direction, the first guide rail 23 is fixed to the lid 20, and the second guide rail 71 is fixed to the table 70. The table 70 is fixed to the lid 20 through the sliding engagement of the first guide rail 23 and the second guide rail 71. Through the sliding engagement of the first guide rail 23 and the second guide rail 71, the table 70 can move smoothly relative to the lid 20, enabling both manual and automatic movement of the table 70 to meet the diverse needs of users.

[0049] In some examples, there can be multiple first guide rails 23, for example, there can be two, four, six or more first guide rails 23, which are arranged along the length of the cover 20. Figure 2 As shown, the guide rails are arranged at intervals in the left and right directions. The second guide rail 71 corresponds one-to-one with the first guide rail 23. By setting multiple sets of sliding structures with one-to-one correspondence between the first guide rail 23 and the second guide rail 71, a stable sliding support can be provided for the tabletop 70, so that the force on the tabletop 70 is evenly distributed along the guide rails, which improves the load-bearing capacity and stability of the tabletop 70, avoids jamming caused by force on one side or deformation of the first guide rail 23 and the second guide rail 71, and ensures that the tabletop 70 slides smoothly and is positioned stably.

[0050] In some examples, such as Figures 1-5 As shown, the lid 20 may include an inner lid panel 21 and an outer lid panel 22. The inner lid panel 21 is fixed to the outer lid panel 22 and is arranged on the side of the outer lid panel 22 facing the box body 10. Figure 1As shown, the inner panel 21 of the lid can be located on the upper side of the outer panel 22 facing the case body 10. The inner panel 21 can provide an installation position for the first guide rail 23 and the second fixing bracket 60, avoiding structural deformation or loosening caused by the first guide rail 23 and the second fixing bracket 60 being directly installed on the outer panel 22. The outer panel 22 of the lid is arranged on the outside of the backpack 100, serving as an outer protective layer of the backpack 100, preventing the internal structure from being directly exposed to the external environment, and can resist the impact of outdoor dust, rain, and minor collisions on the internal structure. The inner panel 21 and the outer panel 22 of the lid can be connected by welding to form a solid integral structure, ensuring that the inner panel 21 and the outer panel 22 of the lid are not prone to misalignment or separation during long-term opening and closing.

[0051] In some examples, such as Figure 1 and Figure 2 As shown, the backpack 100 may also include a mounting bracket 80, through which the case 10 is fixed to the rear door. The mounting bracket 80 is located at the bottom of the case 10, utilizing the bottom space for concealed installation without affecting the overall appearance of the backpack 100. Simultaneously, the bottom support enhances the stability of the connection between the case 10 and the rear door. Both the mounting bracket 80 and the case 10, and the mounting bracket 80 and the rear door, are connected using bolts and clips. The clips quickly engage with the holes for alignment, and the bolts are tightened securely to prevent loosening. This bolt and clip connection provides both connection strength and ease of assembly and disassembly. By adding the mounting bracket 80 to the bottom of the case 10, the stability and concealment of the case 10's installation are optimized, ensuring convenient assembly and disassembly of the backpack 100 and meeting the user's needs for flexible use and maintenance of the backpack 100.

[0052] The following is for reference. Figures 1-5 The trunk door assembly according to a second aspect embodiment of the present utility model is described.

[0053] like Figures 1-5 As shown, the trunk door assembly according to the second aspect of the present invention includes a trunk door and a backpack 100 according to the first aspect of the present invention, with the backpack body 10 fixed to the trunk door.

[0054] According to the rear trunk door assembly of this utility model embodiment, the trunk lid 20 can move flexibly between the open and closed positions relative to the trunk body 10 by receiving control signals through the drive motor, which can realize the automatic opening and closing of the backpack 100, improve the convenience and protection of use, and adapt to diverse vehicle use scenarios.

[0055] The following is for reference. Figures 1-5 A vehicle according to a third aspect of the present invention is described.

[0056] like Figures 1-5As shown, the vehicle according to a third aspect embodiment of the present invention includes a trunk door assembly according to the second aspect embodiment of the present invention described above.

[0057] According to the vehicle of this utility model embodiment, the drive motor receives a control signal to enable the lid 20 to move flexibly between the open and closed positions relative to the body 10, thereby realizing the automatic opening and closing of the backpack 100, improving the convenience and protection of use, and adapting to diverse vehicle usage scenarios.

[0058] The following reference Figures 1-5 This invention describes a vehicle according to a specific embodiment of the present invention.

[0059] The vehicle includes a trunk door assembly, which includes a trunk door and a backpack 100. The backpack 100 includes a body 10, a lid 20, a drive motor, a transmission mechanism 40, a first fixing frame 50, a second fixing frame 60, a table 70, and a mounting bracket 80.

[0060] like Figures 1-5 As shown, the bottom of the box body 10 is provided with a mounting bracket 80. The box body 10 is fixed to the rear door by the mounting bracket 80. The box body 10 is fixed to the rear side of the rear door by bolts and buckles. The buckles quickly engage with the holes for alignment, and the bolts are tightened to lock and prevent loosening. The box cover 20 has an open position and a closed position relative to the box body 10. When the box cover 20 is in the open position, the open side of the box body 10 is open. When the box cover 20 is in the closed position, the open side of the box body 10 is closed. The box cover 20 includes: an inner box cover plate 21, an outer box cover plate 22, and a first guide rail 23. The first guide rail 23 is fixed to the inner box cover plate 21 by bolts and buckles. The inner box cover plate 21 and the outer box cover plate 22 are connected by welding.

[0061] like Figures 1-5 As shown, the first fixed bracket is located between the housing 10 and the transmission mechanism 40, and is used to fix the transmission mechanism 40 and the housing 10 relative to each other. The second fixed bracket 60 is located between the cover 20 and the transmission mechanism 40, and is used to fix the transmission mechanism 40 and the cover 20.

[0062] like Figures 1-5As shown, the drive motor is located inside the cavity 11, providing power for the position switching of the cover 20, and is equipped with a motor shaft 30. The transmission mechanism 40 includes a first link 41, a second link 42, a third link 43, and a fourth link 44. The second link 42 and the third link 43 are respectively provided with a first hinge portion 421 and a second hinge portion 431. The front end of the first link 41 is rotatably fixed to the motor shaft 30 on the first fixed frame 50. The upper end of the second link 42 is rotatably connected to the rear end of the first link 41, and the lower end of the second link 42 is rotatably connected to the second fixed frame 60. The front end of the third link 43 is rotatably connected to the first fixed frame 50. The upper end of the fourth link 44 is rotatably connected to the rear end of the third link 43, and the lower end of the fourth link 44 is rotatably connected to the second fixed frame 60. The second hinge portion 431 is rotatably connected to the first hinge portion 421, realizing a multi-link drive mechanism. When the drive motor receives a control signal, it drives the first link 41 to rotate, thereby driving the second link 42, the third link 43 and the fourth link 44 to move along a preset trajectory, so that the second fixed frame 60 drives the box cover 20 to reciprocate between the open position and the closed position.

[0063] like Figures 1-5 As shown, the tabletop 70 is provided with a second guide rail 71. The tabletop 70 moves back and forth between the retracted position and the extended position relative to the box cover 20 through the sliding cooperation between the first guide rail 23 and the second guide rail 71.

[0064] According to this embodiment of the vehicle, a storage structure adapted to the rear door is formed by setting up a box body 10, a box cover 20, and a drive motor. The box body 10 is stably mounted on the rear door, providing dedicated space for storing items. The drive motor can receive control signals and drive the box cover 20 to flexibly switch between open and closed positions relative to the box body 10, thereby realizing the automatic opening and closing of the backpack 100 and greatly improving the ease of operation. At the same time, a table 70 is added inside the backpack 100, and a multi-link mechanism and guide rail mechanism are used to link the table 70, allowing it to move flexibly between the extended and retracted positions manually or automatically. This meets the diverse outdoor needs of users, expands storage space, improves ease of use and protection, and adapts to diverse vehicle usage scenarios.

[0065] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A backpack (100), characterized in that, include: A housing (10) adapted to be mounted on a rear door, the housing (10) defining a rear-open cavity (11); A lid (20) is movable relative to the box body (10) between an open position and a closed position. In the closed position, the lid (20) covers the open side of the box body (10), and in the open position, the lid (20) opens the open side of the cavity (11). A drive motor is connected to the cover (20) and is used to drive the cover (20) to move between the open position and the closed position; The transmission mechanism (40) connects the motor shaft (30) of the drive motor to the cover (20) and drives the cover (20) to move between the open position and the closed position.

2. The backpack (100) according to claim 1, characterized in that, The transmission mechanism (40) is a linkage mechanism.

3. The backpack (100) according to claim 2, characterized in that, The transmission mechanism (40) includes: The first connecting rod (41) has one end fixed to the motor shaft (30); The second link (42) has two ends that are rotatably connected to the other end of the first link (41) and the box cover (20), respectively, and a first hinge (421) is provided between the two ends of the second link (42). The third link (43) is rotatably connected to the box (10) at one end, and a second hinge (431) is provided between the two ends of the third link (43), which is rotatably connected to the first hinge (421). The fourth link (44) is rotatably connected at both ends to the other end of the third link (43) and the box cover (20).

4. The backpack (100) according to claim 3, characterized in that, The backpack (100) also includes: A first fixed frame (50) is fixed relative to the housing (10), and one end of the first connecting rod (41) and one end of the third connecting rod (43) are rotatably mounted on the first fixed frame (50); and / or, The second fixing frame (60) is fixed on the box cover (20), and one end of the second connecting rod (42) and one end of the fourth connecting rod (44) are rotatably mounted on the second fixing frame (60).

5. The backpack (100) according to claim 2, characterized in that, The number of transmission mechanisms (40) is multiple, and the multiple transmission mechanisms (40) are arranged at intervals in the left-right direction of the vehicle.

6. The backpack (100) according to any one of claims 1-5, characterized in that, The backpack (100) further includes a tabletop (70) which is disposed on the lid (20) and located on the side of the lid (20) facing the body (10).

7. The backpack (100) according to claim 6, characterized in that, The tabletop (70) is movable relative to the lid (20) between an extended position and a retracted position, in the retracted position the tabletop (70) is located inside the lid (20), and when the lid (20) is in the open position and the tabletop (70) is in the extended position, at least a portion of the tabletop (70) extends to the outside of the lid (20).

8. The backpack (100) according to claim 6, characterized in that, The lid (20) is provided with a first guide rail (23) extending along the width direction of the lid (20), and the table (70) is provided with a second guide rail (71). The first guide rail (23) and the second guide rail (71) are slidably engaged.

9. A trunk door assembly, characterized in that, Includes a rear door and a backpack (100) according to any one of claims 1-8, wherein the case (10) is fixed to the rear door.

10. A vehicle, characterized in that, The trunk door assembly according to claim 9.

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