A vehicle-mounted automatic storage box with mechanical overload protection device
By designing a mechanical overload protection device in the vehicle's automatic storage box and using the meshing of internal and external racks to achieve tooth skipping protection, the problem of motor overload caused by foreign object jamming is solved, improving the system's reliability and safety, and reducing system complexity and cost.
Patent Information
- Application Number
- CN202522492342.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-25
AI Technical Summary
Existing vehicle-mounted automatic storage boxes are prone to motor overload due to foreign objects getting stuck, affecting the reliability and safety of the equipment, and posing mechanical component damage and safety hazards.
Design an automatic vehicle storage box with mechanical overload protection device. The internal and external racks mesh together to skip teeth when encountering obstacles, automatically protecting the motor from overload. The automatic opening and closing of the storage box lid is achieved by using a geared motor drive board.
It achieves automatic opening of the storage box lid and automatic overload protection functions, realizing the safety of the storage box without the need for additional devices, improving the reliability of the system, and reducing the system complexity and cost.
Smart Images

Figure CN224928945U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle storage technology, and specifically relates to an automatic vehicle storage box with a mechanical overload protection device. Background Technology
[0002] With the development of intelligent and human-centered automobiles, in-vehicle automatic storage boxes have become an important feature for optimizing in-vehicle space utilization and improving driving safety, thanks to their advantages such as automatic opening / closing and hidden storage. They rely on technologies such as sensor sensing, motor drive, and intelligent control to automate and facilitate storage operations, effectively solving the pain points of traditional manual storage devices, such as distracting the driver and the easy tipping of items.
[0003] However, in actual use, existing automatic car storage boxes frequently face the risk of motor overload due to foreign objects getting stuck, becoming a key pain point affecting the reliability and safety of the equipment. When opening or closing the storage box lid, users may inadvertently get small items such as mobile phones, keys, charging cables, and cards caught between the lid and the box body due to operational negligence, or loose debris from inside the vehicle may fall into the transmission mechanism area, obstructing the opening and closing path and causing foreign objects to get stuck. In this situation, the storage box's drive motor will continuously output torque to maintain the opening and closing action, resulting in a severe overload. The motor being in a stalled state for a long time will cause a sudden increase in current and a rapid rise in core temperature, which can easily lead to motor coil burnout, insulation aging, and damage to mechanical components such as broken transmission gears and deformed slide rails, directly shortening the storage box's lifespan. At the same time, stuck foreign objects may be squeezed, deformed, or ejected under the continuous driving force of the motor, damaging items, interfering with driving operations, and even posing safety hazards such as collisions to passengers. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide an automatic car storage box with a mechanical overload protection device. It can not only realize the automatic opening and closing function of the storage box lid, but also realize the overload protection function without the need for an additional overload protection device, making it safer and more reliable.
[0005] Technical Solution: To achieve the above objectives, this utility model provides an automatic vehicle storage box with a mechanical overload protection device, comprising: A storage box with an opening at the top; A sliding box cover, which is slidably disposed on the upper part of the storage box body for opening or closing the storage box body, and the bottom of the sliding box cover is provided with an external toothed rack; A drive plate is movably connected to the sliding box cover. The drive plate is provided with an internal rack, and at least one tooth of the internal rack and the external rack meshes with each other. It also includes a geared motor, which is connected to the drive board to provide power to the drive board.
[0006] With the above solution, if a foreign object obstructs the sliding cover, the inner and outer racks will skip teeth, and the motor torque will not be transmitted to the sliding cover. This not only enables the automatic opening and closing of the storage box cover, but also achieves overload protection without the need for an additional overload protection device, making it safer and more reliable.
[0007] Furthermore, the bottom of the sliding box cover has two rows of T-shaped connecting posts along its length, and the drive plate has a set of receiving grooves connected to the T-shaped connecting posts. The receiving grooves and the T-shaped connecting posts can slide relative to each other. The sliding connection between the receiving grooves and the T-shaped connecting posts ensures that the drive plate can slide freely when a tooth skip occurs, and also facilitates the docking and resetting of the inner and outer racks after a tooth skip.
[0008] Furthermore, the upper end of the storage box extends inward to form a flange, and the sliding box cover has sliding grooves on both sides, with the flange located in the sliding grooves and the two being able to slide relative to each other; The upper end of the slide is flush with the outer surface of the storage box on one side and flush with the inner surface of the storage box on the other side.
[0009] Furthermore, the outer rack is provided on both sides of the bottom surface of the sliding box cover, and the outer rack is arranged along the moving direction of the sliding box cover.
[0010] Furthermore, the drive plate is provided with a drive rack along the sliding box cover moving direction, and the drive rack is poweredly connected to the geared motor.
[0011] Furthermore, a cylindrical gear is coaxially mounted on the output shaft of the geared motor, and the cylindrical gear meshes with the drive rack.
[0012] Furthermore, a motor bracket is provided on the side of the storage box, and the geared motor is fixed to the side of the storage box through the motor bracket.
[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects: 1. The automatic vehicle storage box with mechanical overload protection device described in this utility model has a reasonable and compact overall structure and simple component settings. It not only realizes the automatic opening and closing function of the storage box lid, but also achieves overload protection without the need for an additional overload protection device, making it safer and more reliable. Adopting this solution can further improve the electrification and intelligence level of automobiles, reduce system complexity, improve system reliability, and further save space.
[0014] 2. This vehicle-mounted automatic storage box with mechanical overload protection operates smoothly, is easy to install, and has strong compatibility, making it suitable for various application scenarios. Its versatility and high application value make it ideal for vehicle applications with higher safety and reliability requirements. The overload protection design makes it applicable to multiple scenarios, eliminating the need for overload protection devices required by conventional technologies, reducing costs, and further expanding its application in the automotive actuator field. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an automatic vehicle storage box with a mechanical overload protection device according to the present invention; Figure 2 This is a front view of an automatic vehicle storage box with a mechanical overload protection device according to the present invention. Figure 3 This is an assembly diagram of the drive plate and sliding box cover described in this utility model; Figure 4 This is a schematic diagram of the structure of the sliding box cover described in this utility model; Figure 5 This is a schematic diagram of the drive board described in this utility model.
[0016] In the picture: 1- Storage box body, 11- Flange, 12- Motor bracket; 2- Sliding box cover, 21- T-shaped connecting post, 22- Slide groove; 3- External gear rack; 4- Drive board, 41- Receiving slot, 42- Drive rack; 5- Internal gear rack; 6- Geared motor; 7- Cylindrical gear. Detailed Implementation
[0017] 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.
[0018] In this embodiment, as Figures 1 to 5 This utility model discloses an automatic vehicle storage box with a mechanical overload protection device, comprising: Storage box 1, with an opening at the top; A sliding box cover 2 is slidably disposed on the upper part of the storage box body 1 for opening or closing the storage box body 1. The bottom of the sliding box cover 2 is provided with an external toothed rack 3. Drive plate 4, which is movably connected to sliding box cover 2, and is provided with internal rack 5, wherein at least one tooth of internal rack 5 and external rack 3 mesh with each other; It also includes a geared motor 6, which is powered by the drive plate 4 to provide power to the drive plate 4.
[0019] In this embodiment, when the driver or passenger activates the storage compartment opening function, the geared motor 6 rotates forward, causing the drive plate 4 to extend. Since the inner rack 5 and the outer rack 3 are engaged, the outer rack 3 begins to move simultaneously, causing the sliding compartment cover 2 to slowly open to its maximum position. When the driver or passenger wants to close the storage compartment cover, the sliding compartment closing function is activated, the geared motor 6 reverses, and the drive plate 4 causes the outer rack 3 to retract, thus resetting the sliding compartment cover 2.
[0020] Whether the sliding cover 2 is opening or closing, if it encounters an obstacle, such as items inside the storage compartment protruding above the cover or other foreign objects falling into the storage compartment, the sliding cover 2 will stop upon contact with the obstacle, meaning the outer rack 3 will stop moving. At this time, the inner rack 5, driven by the reduction motor 6, will still be moving, and the inner rack 5 will move relative to the outer rack 3. That is, the meshing teeth of the inner rack 5 and the outer rack 3 will experience a so-called "tooth skipping," thereby achieving overload protection and alerting the driver and passengers to immediately stop and remove the obstacle. This vehicle-mounted automatic storage box with a mechanical overload protection device operates smoothly, is easy to install, has strong compatibility, is suitable for various application scenarios, has good versatility, and has extremely high application value, which can meet the vehicle-mounted application scenarios with higher requirements for safety and reliability.
[0021] Specifically, the bottom of the sliding box cover 2 is provided with two rows of T-shaped connecting posts 21 along the length direction, and the drive plate 4 is provided with a set of receiving grooves 41 connected to the T-shaped connecting posts 21. The receiving grooves 41 and the T-shaped connecting posts 21 can slide relative to each other.
[0022] Specifically, the upper end of the storage box 1 extends inward to form a flange 11, and the sliding box cover 2 has sliding grooves 22 on both sides. The flange 11 is located in the sliding grooves 22 and the two can slide relative to each other. The upper end of the slide 22 is flush with the outer surface of the storage box 1 on one side and with the inner surface of the storage box 1 on the other side.
[0023] Specifically, the outer rack 3 is provided on both sides of the bottom surface of the sliding box cover 2, and the outer rack 3 is arranged along the moving direction of the sliding box cover 2.
[0024] Specifically, the drive plate 4 is provided with a drive rack 42 along the moving direction of the sliding cover 2, and the drive rack 42 is poweredly connected to the reduction motor 6.
[0025] Specifically, a cylindrical gear 7 is coaxially mounted on the output shaft of the geared motor 6, and the cylindrical gear 7 meshes with the drive rack 42.
[0026] Specifically, a motor bracket 12 is provided on the side of the storage box 1, and the reduction motor 6 is fixed to the side of the storage box 1 through the motor bracket 12.
[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.
Claims
1. A vehicle-mounted automatic storage box with a mechanical overload protection device, characterized in that: include: Storage box (1), the upper part of the storage box (1) is open; Sliding box cover (2), the sliding box cover (2) is slidably disposed on the upper part of the storage box body (1) for opening or closing the storage box body (1), and the bottom of the sliding box cover (2) is provided with an external toothed rack (3). A drive plate (4) is movably connected to a sliding box cover (2). An internal rack (5) is provided on the drive plate (4), and at least one tooth of the internal rack (5) meshes with the external rack (3). It also includes a geared motor (6), which is powered by the drive plate (4) to provide power to the drive plate (4).
2. The vehicle-mounted automatic storage box with mechanical overload protection device according to claim 1, characterized in that: The bottom of the sliding box cover (2) is provided with two rows of T-shaped connecting columns (21) along the length direction. The drive plate (4) is provided with a set of receiving grooves (41) connected to the T-shaped connecting columns (21). The receiving grooves (41) and the T-shaped connecting columns (21) can slide relative to each other.
3. The vehicle-mounted automatic storage box with mechanical overload protection device according to claim 1, characterized in that: The upper end of the storage box (1) extends inward to form a flange (11), and the sliding box cover (2) has grooves (22) on both sides. The flange (11) is located in the grooves (22) and the two can slide relative to each other. The upper end of the groove (22) is flush with the outer surface of the storage box (1) on one side and with the inner surface of the storage box (1) on the other side.
4. The vehicle-mounted automatic storage box with mechanical overload protection device according to claim 1, characterized in that: The external rack (3) is provided on both sides of the bottom surface of the sliding box cover (2), and the external rack (3) is arranged along the moving direction of the sliding box cover (2).
5. A vehicle-mounted automatic storage box with a mechanical overload protection device according to claim 1, characterized in that: The drive plate (4) is provided with a drive rack (42) along the moving direction of the sliding cover (2), and the drive rack (42) is powered by the geared motor (6).
6. A vehicle-mounted automatic storage box with a mechanical overload protection device according to claim 5, characterized in that: A cylindrical gear (7) is coaxially mounted on the output shaft of the geared motor (6), and the cylindrical gear (7) meshes with the drive rack (42).
7. A vehicle-mounted automatic storage box with a mechanical overload protection device according to claim 1, characterized in that: The storage box (1) has a motor bracket (12) on its side, and the geared motor (6) is fixed to the side of the storage box (1) through the motor bracket (12).
