A car-mounted smart refrigerator

Abstract

The present invention discloses an in-vehicle intelligent refrigerator and its control method. The refrigerator comprises a housing, which is located within the vehicle's central armrest. The housing comprises a storage module, a control module, a lifting module, a sensing module, an alarm module, and a refrigeration module. A cover is provided at the upper opening of the housing. The lifting module drives the cover to open and lifts the loading tray, facilitating passenger access to the refrigerator. Furthermore, the provision of the alarm module and sensing module prevents damage to the motor caused by heavy objects pressing against the cover when it is open, or injuries to passengers when the cover is closed. This makes the in-vehicle refrigerator more intelligent to use.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted smart refrigerators, and in particular to a vehicle-mounted smart refrigerator. Background Art

[0002] Car refrigerators are a common type of vehicle appliance, typically located in the center armrest. These refrigerators typically feature a flip-top lid, allowing drivers and passengers in the driver's and front passenger seats to easily access drinks. However, it can be difficult for passengers to reach out and retrieve items. Furthermore, to prevent containers from breaking during bumpy driving, refrigerators are equipped with a device to secure them, further complicating the process. When the front passenger seat is unoccupied, rear passengers often need to stand up or seek assistance from the driver to retrieve items, posing a significant safety hazard. Summary of the Invention

[0003] To solve the above problems, the present invention provides a vehicle-mounted smart refrigerator and a control method thereof, which is implemented as follows:

[0004] A vehicle-mounted smart refrigerator, comprising:

[0005] A box body is provided in a central armrest box in the vehicle, wherein a accommodating module, a control module, a lifting module, a sensing module, an alarm module and a refrigeration module are provided in the box body, and an upper cover is provided at an upper opening of the box body;

[0006] The accommodating module includes a supporting structure disposed in the box body, the supporting structure includes a pair of brackets disposed on the chassis at intervals, and a tray is slidably disposed between the brackets;

[0007] The upper cover includes a base plate fixedly mounted at the upper opening of the box body, a through hole for the tray to extend out is formed at a position corresponding to the opening of the box body, the base plate extends in a direction close to or away from the front of the vehicle to form an extension portion, the upper end of the base plate is further provided with a cover plate adapted to the base plate, the lower end of the cover plate is provided with at least a pair of swing arms near one end of the extension portion, the swing arms penetrate the base plate and extend into the central armrest box, and the ends of the swing arms away from the cover plate are rotatably connected via a hinge shaft;

[0008] The lifting module includes a screw rod arranged in the box body along the vertical direction, a movable block movably arranged on the screw rod, and the movable block is fixedly connected to the tray, a driving motor is arranged at the lower end of the extension part, the screw rod is driven by the driving motor, a worm gear group is arranged at the upper end of the screw rod, and the worm gear group includes a first worm gear arranged at the upper end of the screw rod, the output shaft of the driving motor is arranged horizontally in the direction close to the box body, and the output shaft is provided with a first worm gear adapted to the first worm gear, a second worm gear is provided at the upper end of the first worm gear, and a steering shaft is provided on the outer surface of the box body close to the screw rod in the horizontal direction, which is on the opposite side and parallel to the first worm gear, a second worm gear adapted to the second worm gear is provided at one end of the steering shaft close to the box body, a third worm gear is provided at one end of the steering shaft away from the box body, and a third worm gear adapted to the third worm gear is provided on the hinge shaft.

[0009] As a further improvement, a mounting frame is provided at the lower end of the extension portion, the drive motor and the worm gear assembly are provided in the mounting frame, the hinge shaft passes through the mounting frame, and the lifting arm is rotatably provided on the mounting frame via the hinge shaft.

[0010] As a further improvement, the lifting arm is arranged on the side of the mounting bracket close to the box body, and the driven arm is arranged on the side of the mounting bracket away from the box body through a rotating shaft. The base plate, the lifting arm, the driven arm and the cover plate form a double rocker mechanism, wherein the base plate is a frame, the lifting arm is an active rod, the driven arm is a driven rod, and the cover plate is a connecting rod. The lifting arm is driven to rotate by the hinge shaft, thereby driving the cover plate to move, and the cover plate always remains horizontal during the movement.

[0011] The lifting arm is an L-shaped plate, and the driven arm is a four-section bent plate;

[0012] When the cover plate is sealed on the base plate, the short plate portion of the lifting arm is fixed to the hinge shaft, the short plate portion is folded upward and toward the side close to the box body to form a long plate portion, and the end of the long plate portion away from the short plate portion is hinged to the cover plate;

[0013] When the cover is sealed on the base plate, the driven arm is fixed to one end of the rotating shaft and extends downward to form a first folding portion, the first folding portion is folded toward a side close to the box body at one end away from the rotating shaft to form a second folding portion, the second folding portion is folded upward at one end away from the first folding portion to form a third folding portion, the third folding portion is folded toward a side close to the box body at one end away from the second folding portion to form a fourth folding portion, and the fourth folding portion is hinged to the cover at one end away from the third folding portion.

[0014] As a further improvement, the tray includes a base, which is slidably arranged on the bracket, and a containing tube is provided on the base. A loading platform is provided at the upper end of the containing tube, and the loading platform extends toward a side away from the screw rod and has a limiting device on the upper end surface for fixing the cup.

[0015] As a further improvement, the sensing module includes a temperature sensor disposed in the accommodating module, and a first pressure sensor and a second pressure sensor are respectively disposed on the lower end surface and the upper end surface of the cover plate;

[0016] The control module includes a control unit arranged in the box body, and control buttons are set on the surface of the central armrest box or away from the central control outside the vehicle. The control module is electrically connected to the lifting module, sensing module, alarm module and refrigeration module respectively, and the control buttons include a pair of temperature adjustment buttons, a cover opening button and a cover closing button.

[0017] As a further improvement, a display device is provided on the upper surface of the cover plate, and the temperature inside the accommodating module is displayed on the display device.

[0018] The present invention also provides a control method for an in-vehicle smart refrigerator, which is applied to the in-vehicle smart refrigerator described above and includes the following steps:

[0019] S1 obtains the control button pressed by the user and sends a corresponding selection signal to the control unit, which then sends a corresponding control signal to the lifting module or cooling module;

[0020] S2. The temperature sensor obtains the temperature within the housing module and displays the temperature on the display device;

[0021] S3. When the user chooses to press the temperature adjustment button, the corresponding temperature value changes are displayed on the display device, and the control unit sends a corresponding cooling signal to the cooling module, and the cooling module performs or stops cooling according to the cooling signal;

[0022] When the user chooses to press the cover opening button, the control unit sends a corresponding cover opening signal to the lifting module, the drive motor rotates forward, driving the screw to rotate, the tray rises accordingly, and the lifting arm rotates accordingly and lifts the cover upward and moves away from / closer to the side of the vehicle head;

[0023] When the user chooses to press the cover opening button, the driving motor reverses, the tray descends, and the lifting arm rotates and drives the cover to buckle onto the base plate.

[0024] As a further improvement, a first threshold is set in the first pressure sensor, a second threshold is set in the second pressure sensor, and step S3 further includes:

[0025] S301. When the user selects to press the cover-opening button, the first pressure sensor detects a first pressure on the upper end of the cover plate and transmits the pressure to the control unit. When the first pressure exceeds the first threshold, the control unit transmits a stop signal to the lifting unit, and the control unit transmits a first alarm signal to the alarm module and the display device. The alarm module emits an alarm sound in response to the first alarm signal, and the display device displays an image in response to the first alarm signal, prompting the user to remove the object placed on the cover plate.

[0026] S302. When the user chooses to press the cover closing button, the second pressure sensor obtains the second pressure at the lower end of the cover and sends it to the control unit. When the second pressure is greater than the second threshold, the control unit sends a stop signal to the lifting unit, and the control unit sends a second alarm signal to the alarm module and the display device. The alarm module emits a warning sound according to the second alarm signal, and the display device displays an image according to the second alarm signal to remind the user to move the object placed between the cover and the substrate.

[0027] The beneficial effects of the present invention are:

[0028] 1. By setting a lifting module in the box body and connecting the lifting module with the cover, it is possible to realize that when the cover is opened, the lifting module drives the tray containing frozen items to rise, so that passengers can take out items from the car refrigerator while riding.

[0029] 2. By setting up a worm gear set and a lead screw, it is possible to use a one-way output motor to lift the tray and open the cover respectively, and the rising / lowering of the tray and the opening / closing of the cover are carried out synchronously without additional operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0032] Figure 3 This is a schematic diagram of the internal structure of the present invention when the cover is open.

[0033] Figure 4 for Figure 3 Schematic diagram of the structure viewed from below.

[0034] Figure 5It is a schematic diagram of the explosion mechanism of the accommodation module of the present invention.

[0035] Figure 6 This is a schematic diagram of the overall structure of the tray of the present invention.

[0036] Figure 7 It is a structural schematic diagram of the worm gear assembly and the drive motor of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the lifting arm of the present invention.

[0038] Figure 9 It is a structural schematic diagram of the driven arm of the present invention.

[0039] Figure 10 It is a module logic block diagram of the present invention.

[0040] Figure 11 This is a logic flow chart of the control method of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0043] A vehicle-mounted smart refrigerator, comprising:

[0044] A box body 1 is provided in a central armrest box in a vehicle, and a housing module 3, a control module, a lifting module, a sensing module, an alarm module, and a refrigeration module are provided in the box body 1. An upper cover 2 is provided at the upper opening of the box body 1;

[0045] The accommodating module 3 includes a supporting structure provided in the box body 1, the supporting structure including a pair of brackets spaced apart and provided on the chassis 11, and a tray 31 is slidably provided between the brackets;

[0046] The upper cover 2 includes a base plate 21 fixed to the upper opening of the box body 1. A through hole for the tray 31 to extend out is defined at a position corresponding to the opening of the box body 1 on the base plate 21. The base plate 21 extends toward or away from the front of the vehicle to form an extension portion. A cover plate adapted to the base plate 21 is further provided at the upper end of the base plate 21. At least a pair of swing arms 22 are provided at the lower end of the cover plate near the extension portion. The swing arms 22 penetrate the base plate 21 and extend into the central console box. The ends of the swing arms 22 away from the cover plate are rotatably connected via a hinge shaft 48.

[0047] The lifting module includes a screw rod 36 arranged in the box body 1 along the vertical direction, a movable block 32 is movably arranged on the screw rod 36, and the movable block 32 is fixedly connected to the tray 31. A driving motor 6 is arranged at the lower end of the extension portion, and the screw rod 36 is driven by the driving motor 6. A worm gear group 4 is arranged at the upper end of the screw rod 36, and the worm gear group 4 includes a first worm gear 42 arranged at the upper end of the screw rod 36. The output shaft of the drive motor 6 is arranged horizontally in the direction close to the box body 1, and the output shaft is provided with a A first worm 41 is adapted to the first worm gear 42, and a second worm 43 is provided at the upper end of the first worm gear 42. A steering shaft 47 is provided on the outer surface of the box body 1 on the side close to the screw 36 and is parallel to the first worm gear 41 in the horizontal direction. A second worm wheel 44 adapted to the second worm 43 is provided at one end of the steering shaft 47 close to the box body 1, and a third worm 45 is provided at the end of the steering shaft 47 away from the box body 1. A third worm wheel 46 adapted to the third worm 45 is provided on the hinge shaft 48.

[0048] In order to improve the lifting stability and lifting power of the screw rod 36, as a further improvement, the specific number of the screw rod 36 is three, and the axes of the three screw rods 36 are spaced apart, parallel and coplanar.

[0049] As a further improvement, a mounting frame 5 is provided at the lower end of the extension portion, the drive motor 6 and the worm gear group 4 are provided in the mounting frame 5, the hinge shaft 48 passes through the mounting frame 5, and the lifting arm 221 is rotatably provided on the mounting frame 5 through the hinge shaft 48.

[0050] As a further improvement, the bracket includes a support plate 37 arranged in the box body 1 at one end away from / close to the front of the vehicle, a guide rod 38 is arranged in the box body 1 at one end close to / away from the front of the vehicle, the mounting frame 5 is fixed to the upper end surface of the side of the support plate 37 away from the guide rod 38, and the screw rod 36 is located on the side of the support plate 37 away from the guide rod 38.

[0051] As a further improvement, the tray 31 includes a base 311, which is slidably arranged on the bracket. A filling tube 33 is provided on the base 311, and a loading platform 34 is provided at the upper end of the filling tube 33. The loading platform 34 extends toward a side away from the screw rod 36 and a limiting device 35 for fixing the cup is provided on the upper end surface. The base 311 is box-shaped, and a mounting hole 315 adapted to the containing tube 33 is provided in the middle of the base 311. A step portion 316 for supporting the containing tube 33 is provided in the mounting hole 315. A pair of feet 312 are provided on the upper edge of one side of the base 311 close to the support plate 37, extending toward the direction close to the support plate 37. The upper end surfaces of the two feet 312 are provided with the movable block 32, and a bearing group adapted to the screw rod 36 is provided in the movable block 32. The screw rod 36 passes through the movable block 32 and can drive the movable block 32 to move up and down. A gap is provided between the movable block 32 and the foot 312 for the support plate 37 to pass through. The lower end of the base 311 on one side close to the guide rod 38 extends downward to form a guide portion 313, and the guide portion 313 is sleeved on the guide rod 38. The upper end of the base 311 on one side close to the guide rod 38 extends upward to form a support portion 314, and the loading platform 34 is fixed to the support portion 314 and the upper end of the containing tube 33.

[0052] As a further improvement, the swing arm 22 includes a lifting arm 221 arranged on the side of the mounting frame 5 close to the box body 1, and a driven arm 222 is arranged on the side of the mounting frame 5 away from the box body 1 through a rotating shaft. The base plate 21, the lifting arm 221, the driven arm 222 and the cover plate constitute a double rocker mechanism, wherein the base plate 21 is a frame, the lifting arm 221 is an active rod, the driven arm 222 is a driven rod, and the cover plate is a connecting rod. The lifting arm 221 is driven to rotate by the hinge shaft 48, thereby driving the cover plate to move, and the cover plate always remains horizontal during the movement.

[0053] The lifting arm 221 is an "L"-shaped plate, and the driven arm 222 is a four-section bent plate; when the cover plate 23 is on the base plate 21, the short plate portion 2211 of the lifting arm 221 is fixed to the hinge shaft 48, and the short plate portion 2211 is folded upward and toward the side close to the box body 1 to form a long plate portion 2212, and the end of the long plate portion 2212 away from the short plate portion 2211 is hinged to the cover plate; when the cover plate 23 is on the base plate 21, the driven arm 222 is fixed to one end of the rotating shaft and extends downward to form a hinge. The first folding portion 2221 is formed. The end of the first folding portion 2221 away from the rotation axis is folded toward the side close to the box body 1 to form a second folding portion 2222. The end of the second folding portion 2222 away from the first folding portion 2221 is folded upward to form a third folding portion 2223. The end of the third folding portion 2223 away from the second folding portion 2222 is folded toward the side close to the box body 1 to form a fourth folding portion 2224. The end of the fourth folding portion 2224 away from the third folding portion 2223 is hinged to the cover. When the cover is fully opened, the second folding portion 2222 contacts the long plate portion 2212 to form a limit self-locking function.

[0054] As a further improvement, the sensing module includes a temperature sensor disposed in the accommodating module 3, and a first pressure sensor and a second pressure sensor are respectively disposed on the lower end surface and the upper end surface of the cover plate;

[0055] The control module includes a control unit arranged in the box body 1, and control buttons are set on the surface of the central armrest box or away from the central control outside the vehicle. The control module is electrically connected to the lifting module, sensing module, alarm module and refrigeration module respectively. The control buttons include a pair of temperature adjustment buttons, a cover opening button and a cover closing button.

[0056] As a further improvement, a display device is provided on the upper surface of the cover plate, and the temperature inside the accommodating module 3 is displayed on the display device.

[0057] In other embodiments, the first pressure sensor and the second pressure sensor are not provided, and an ammeter is provided in the driving motor 6 .

[0058] The present invention also provides a control method for an in-vehicle smart refrigerator, which is applied to the in-vehicle smart refrigerator described above and includes the following steps:

[0059] S1 obtains the control button pressed by the user and sends a corresponding selection signal to the control unit, which then sends a corresponding control signal to the lifting module or cooling module;

[0060] S2. The temperature sensor obtains the temperature within the accommodating module 3 and displays the temperature on the display device;

[0061] S3. When the user chooses to press the temperature adjustment button, the corresponding temperature value changes are displayed on the display device, and the control unit sends a corresponding cooling signal to the cooling module, and the cooling module performs or stops cooling according to the cooling signal;

[0062] When the user chooses to press the cover opening button, the control unit sends a corresponding cover opening signal to the lifting module, the drive motor 6 rotates forward, driving the screw rod 36 to rotate, and the tray 31 rises accordingly. The lifting arm 221 rotates accordingly and lifts the cover upward and moves away from / closer to the side of the vehicle head;

[0063] When the user chooses to press the cover opening button, the driving motor 6 rotates in reverse, the tray 31 descends, and the lifting arm 221 rotates and drives the cover to buckle onto the base plate 21 .

[0064] As a further improvement, a first threshold is set in the first pressure sensor, a second threshold is set in the second pressure sensor, and step S3 further includes:

[0065] S301. When the user selects to press the cover-opening button, the first pressure sensor detects a first pressure on the upper end of the cover plate and transmits the pressure to the control unit. When the first pressure exceeds the first threshold, the control unit transmits a stop signal to the lifting unit, and the control unit transmits a first alarm signal to the alarm module and the display device. The alarm module emits an alarm sound in response to the first alarm signal, and the display device displays an image in response to the first alarm signal, prompting the user to remove the object placed on the cover plate.

[0066] S302. When the user chooses to press the cover closing button, the second pressure sensor obtains the second pressure at the lower end of the cover and sends it to the control unit. When the second pressure is greater than the second threshold, the control unit sends a stop signal to the lifting unit, and the control unit sends a second alarm signal to the alarm module and the display device. The alarm module emits a warning sound according to the second alarm signal, and the display device displays an image according to the second alarm signal to remind the user to move the object placed between the cover and the substrate 21.

[0067] In another embodiment, the ammeter is set with a first preset current value I1, a second preset current value I2, and an alarm current difference ΔI, and step S3 includes:

[0068] S301'. When the user selects to press the cover-opening button, the ammeter obtains the current value I0 in the drive motor 6 and sends it to the control unit. When |I1-I0|≥ΔI, the control unit sends a stop signal to the lifting unit and a first alarm signal to the alarm module and the display device. The alarm module emits an alarm sound in response to the first alarm signal, and the display device displays an image in response to the first alarm signal, reminding the user to remove the object placed on the cover.

[0069] S302'. When the user chooses to press the cover closing button, the ammeter obtains the current value I0" ​​in the drive motor 6 and sends it to the control unit. When |I2-I0'|≥ΔI, the control unit sends a stop signal to the lifting unit, and the control unit sends a second alarm signal to the alarm module and the display device. The alarm module emits a warning sound according to the second alarm signal, and the display device displays an image according to the first alarm signal to remind the user to remove the object pressed on the cover.

[0070] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A car-mounted smart refrigerator, characterized in that: include: A box body is provided in a central armrest box in the vehicle, wherein a accommodating module, a control module, a lifting module, a sensing module, an alarm module and a refrigeration module are provided in the box body, and an upper cover is provided at an upper opening of the box body; The accommodating module includes a supporting structure arranged in the box body, the supporting structure includes a pair of brackets arranged at intervals on the chassis, and a tray is slidably arranged between the brackets; The upper cover includes a base plate fixedly mounted at the upper opening of the box body, a through hole for the tray to extend out is formed at a position corresponding to the opening of the box body, the base plate extends in a direction close to or away from the front of the vehicle to form an extension portion, the upper end of the base plate is further provided with a cover plate adapted to the base plate, the lower end of the cover plate is provided with at least a pair of swing arms near one end of the extension portion, the swing arms penetrate the base plate and extend into the central armrest box, and the ends of the swing arms away from the cover plate are rotatably connected via a hinge shaft; The lifting module includes a screw rod arranged in a vertical direction inside the box body, and a movable block is movably provided on the screw rod, and the movable block is fixedly connected to the tray, and a driving motor is provided at the lower end of the extension part, and the screw rod is driven by the driving motor, and a worm gear group is provided at the upper end of the screw rod, and the worm gear group includes a first worm gear arranged on the upper end of the screw rod, and the output shaft of the driving motor is arranged horizontally in a direction close to the box body, and the output shaft is provided with a first worm gear adapted for the first worm gear, and a second worm gear is provided at the upper end of the first worm gear; the outer surface of the box body close to the screw rod is provided with a steering shaft on the opposite side and parallel to the first worm gear in the horizontal direction, and a second worm gear adapted for the second worm gear is provided at one end of the steering shaft close to the box body, and a third worm gear is provided at the end of the steering shaft away from the box body; a third worm gear adapted for the third worm gear is provided on the hinge shaft; The control method of the vehicle-mounted smart refrigerator comprises the following steps: S1 obtains the user's selected control button and sends a corresponding selection signal to the control unit of the control module, and the control unit then sends a corresponding control signal to the lifting module or refrigeration module; S2. The temperature sensor in the sensing module obtains the temperature within the accommodation module and displays the temperature on a display device; S3. When the user selects and presses the temperature adjustment button in the control button, the corresponding temperature value changes are displayed on the display device, and the control unit sends a corresponding cooling signal to the cooling module, and the cooling module performs or stops cooling according to the cooling signal; When the user selects to press the cover opening button in the control button, the control unit sends a corresponding cover opening signal to the lifting module, the drive motor rotates forward, driving the screw to rotate, and the tray rises accordingly. The lifting arm in the lifting module rotates accordingly and lifts the cover upward and moves it away from / closer to the side of the vehicle head; When the user chooses to press the cover opening button, the driving motor reverses, the tray descends, and the lifting arm rotates and drives the cover to buckle onto the base plate.

2. The vehicle-mounted smart refrigerator according to claim 1, characterized in that: A mounting frame is provided at the lower end of the extension portion, the drive motor and the worm gear assembly are provided in the mounting frame, the hinge shaft passes through the mounting frame, and the lifting arm is rotatably provided on the mounting frame via the hinge shaft.

3. The vehicle-mounted smart refrigerator according to claim 2, characterized in that: The swing arm includes a lifting arm arranged on the side of the mounting frame close to the box body, and a driven arm is arranged on the side of the mounting frame away from the box body through a rotating shaft. The base plate, the lifting arm, the driven arm and the cover plate constitute a double rocker mechanism, wherein the base plate is a frame, the lifting arm is an active rod, the driven arm is a driven rod, and the cover plate is a connecting rod. The lifting arm is driven to rotate by the hinge shaft, thereby driving the cover plate to move, and the cover plate always remains horizontal during the movement.

4. The vehicle-mounted smart refrigerator according to claim 3, characterized in that: The lifting arm is an "L"-shaped plate, and the driven arm is a four-section bent plate; When the cover plate is sealed on the base plate, the short plate portion of the lifting arm is fixed to the hinge shaft, the short plate portion is folded upward and toward the side close to the box body to form a long plate portion, and the end of the long plate portion away from the short plate portion is hinged to the cover plate; When the cover is sealed on the base plate, the driven arm is fixed to one end of the rotating shaft and extends downward to form a first folding portion, the first folding portion is folded toward a side close to the box body at one end away from the rotating shaft to form a second folding portion, the second folding portion is folded upward at one end away from the first folding portion to form a third folding portion, the third folding portion is folded toward a side close to the box body at one end away from the second folding portion to form a fourth folding portion, and the fourth folding portion is hinged to the cover at one end away from the third folding portion.

5. The vehicle-mounted smart refrigerator according to claim 1, characterized in that: The tray includes a base, which is slidably arranged on the bracket. A containing tube is provided on the base, and a loading platform is provided on the upper end of the containing tube. The loading platform extends toward a side away from the screw rod and has a limiting device on the upper end surface for fixing the cup.

6. The vehicle-mounted smart refrigerator according to claim 1, characterized in that: The sensing module includes a temperature sensor disposed in the accommodation module, and a first pressure sensor and a second pressure sensor are respectively disposed on the lower end surface and the upper end surface of the cover plate; The control module includes a control unit arranged in the box body, and control buttons are set on the surface of the central armrest box or away from the central control outside the vehicle. The control module is electrically connected to the lifting module, sensing module, alarm module and refrigeration module respectively, and the control buttons include a pair of temperature adjustment buttons, a cover opening button and a cover closing button.

7. The vehicle-mounted smart refrigerator according to claim 6, characterized in that: A display device is provided on the upper surface of the cover plate, and the display device displays the temperature inside the accommodating module.

8. The vehicle-mounted smart refrigerator according to claim 7, characterized in that: A first threshold is set in the first pressure sensor, a second threshold is set in the second pressure sensor, and S3 further includes: S301. When the user selects to press the cover-opening button, the first pressure sensor detects a first pressure on the upper end of the cover plate and transmits the pressure to the control unit. When the first pressure exceeds the first threshold, the control unit transmits a stop signal to the lifting unit in the lifting module, and the control unit transmits a first alarm signal to the alarm module and the display device. The alarm module emits an alarm sound in response to the first alarm signal, and the display device displays an image in response to the first alarm signal, prompting the user to remove the object placed on the cover plate. S302. When the user chooses to press the cover closing button among the control buttons, the second pressure sensor obtains the second pressure at the lower end of the cover plate and sends it to the control unit. When the second pressure is greater than the second threshold value, the control unit sends a stop signal to the lifting unit, and the control unit sends a second alarm signal to the alarm module and the display device. The alarm module emits a warning sound according to the second alarm signal, and the display device displays an image according to the second alarm signal to remind the user to move the object placed between the cover plate and the substrate.

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