Mobile refrigerator

Abstract

The application discloses a mobile refrigerator, comprising a box body, a walking mechanism, a top cover, a supporting rod, a tray assembly, a lifting mechanism and a refrigeration system, the box body is provided with a storage compartment and an opening, the opening is communicated with the storage compartment and located at the top surface of the storage compartment; the walking mechanism is used for driving the box body to move; the top cover is used for opening or closing the opening; the upper end of the supporting rod is fixedly connected to the top cover; the tray assembly is connected to the supporting rod; the lifting mechanism drives the supporting rod, the tray assembly and the top cover to jointly lift; the refrigeration system is arranged in the box body, and the refrigeration system comprises an evaporator, and the evaporator is used for providing cold energy for the storage compartment. The top cover is driven to lift by the lifting mechanism, automatic door opening is realized, the opening of the box body is located at the top surface of the storage compartment, the lifting mechanism can drive the tray assembly to extend out of the opening, so that articles can be conveniently taken from all around the refrigerator. In the process of moving the box body, the refrigeration system can continuously provide cold air for the articles in the storage compartment.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, in particular to a mobile refrigerator. Background Art

[0002] A refrigerator is a type of household appliance, a refrigeration device that maintains a constant low temperature. It is also a civilian product that keeps food or other items in a constant low-temperature cold state. In related art, most refrigerators are bulky and difficult to move, making them inconvenient to use. Therefore, some refrigerators have been reduced in size and equipped with a drive device on the base of the refrigerator to facilitate the movement of the refrigerator according to user needs. However, most of these refrigerators have manual door openings, and the storage space inside the compartment is small. It is difficult to ensure that the door opening direction corresponds to the user's position, which is not conducive to the user's access to items. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a mobile refrigerator that can automatically open its door and facilitates users to take items from multiple directions.

[0004] According to an embodiment of the present invention, a mobile refrigerator includes: a box body, a traveling mechanism, a top cover, a support rod, a tray assembly, a lifting mechanism and a refrigeration system, wherein the box body is provided with a storage compartment and an opening, wherein the opening is connected to the storage compartment and is located on the top surface of the storage compartment; the traveling mechanism is used to drive the box body to move; the top cover is used to open or close the opening; the upper end of the support rod is fixedly connected to the top cover; the tray assembly is connected to the support rod; the lifting mechanism drives the support rod, the tray assembly and the top cover to rise and fall together; the refrigeration system is provided in the box body, and the refrigeration system includes an evaporator, which is used to provide cooling for the storage compartment.

[0005] The mobile refrigerator according to the embodiments of the present invention has at least the following beneficial effects: the lifting mechanism drives the top cover to rise and fall, enabling automatic door opening. Furthermore, the opening of the refrigerator body is located on the top surface of the storage compartment, and the lifting mechanism can drive the tray assembly to extend out of the opening, allowing convenient access to items from all sides of the refrigerator. During the movement of the refrigerator body, the refrigeration system can continuously provide cold air to the items in the storage compartment.

[0006] According to some embodiments of the present invention, the lifting mechanism includes a column, a motor and a pulley group, the support rod is provided with a guide hole, the column is passed through the guide hole, the pulley group connects the support rod and the column, the column is fixedly connected to the box, and the motor drives the support rod to slide along the axial direction of the column through the pulley group.

[0007] According to some embodiments of the present application, the pulley block comprises a first fixed pulley, a first movable pulley, a second movable pulley, a winding wheel, a first cable and a second cable, the first fixed pulley is arranged on the stand, the winding wheel is connected to a rotating shaft, the motor is in transmission connection with the rotating shaft, the winding wheel is spaced apart along the axial direction and is provided with a first winding groove and a second winding groove, one end of the first cable is wound around the first winding groove and is fixed to the winding wheel, the other end of the first cable is sequentially wound around the first fixed pulley and the first movable pulley and is fixed to the stand, one end of the second cable is wound around the second winding groove and is fixed to the winding wheel, the other end of the second cable is wound around the second movable pulley and is fixed to the stand, the first movable pulley and the second movable pulley are connected to the support rod and drive the support rod to move.

[0008] According to some embodiments of the present application, the support rod is provided with a sliding groove, the sliding groove is provided with a first sliding block and a second sliding block, the first movable pulley is connected to the first sliding block, the second movable pulley is connected to the second sliding block, the first sliding block and the second sliding block are connected with a first elastic member, so that the first cable and the second cable are kept in a tensioned state.

[0009] According to some embodiments of the present application, the lifting mechanism further comprises a clutch, the clutch comprises a first connecting sleeve and a second connecting sleeve capable of being engaged with each other, the first connecting sleeve is sleeved on the output shaft of the motor, the second connecting sleeve is fixedly connected to the rotating shaft, the first connecting sleeve is fixedly connected to the output shaft and is capable of moving along the output shaft, a reset spring is arranged between the first connecting sleeve and the output shaft, so that the first connecting sleeve and the second connecting sleeve are engaged.

[0010] According to some embodiments of the present application, the lifting mechanism further comprises a toggle, the motor is connected with a base, the middle part of the toggle is rotatably connected to the base, the outer wall of the first connecting sleeve is provided with a ring groove, one end of the toggle is clamped into the ring groove.

[0011] According to some embodiments of the present application, the lifting mechanism further comprises a second elastic member, the middle part of the toggle is provided with a rotating sleeve, the outer wall of the rotating sleeve is provided with a first fixing column, the base is provided with a second fixing column, the two ends of the second elastic member are respectively connected to the first fixing column and the second fixing column, the first fixing column deviates from the second fixing column and the axis of the rotating sleeve, the second elastic member acts on the toggle, so that the clutch is kept in an engaged state or a separated state.

[0012] According to some embodiments of the present application, the tray assembly comprises a first tray and a second tray, the first tray and the second tray are connected to the support rod and are arranged in layers along the up and down directions.

[0013] According to some embodiments of the present invention, the outer edge of the first tray has an escape opening, and the first tray can rotate around the central axis of the support rod to change the position of the escape opening relative to the second tray.

[0014] According to some embodiments of the present invention, the first tray includes a fixed tray and a movable tray, the fixed tray is connected to the support rod, the movable tray is movably connected to the fixed tray, the outer edge of the fixed tray has a notch, and the movable tray can rotate around the central axis of the support rod to adjust the expansion angle of the first tray.

[0015] According to some embodiments of the present invention, the distance between the first tray and the second tray is adjustable.

[0016] According to some embodiments of the present invention, the support rod is provided with a plurality of clips, and the plurality of clips are arranged at intervals along the height direction of the support rod. The first tray can be detachably installed on any one of the clips through a fastening assembly, and the fastening assembly includes an adjustment button and a third elastic member. The adjustment button can be rotatably set on the first tray and can be clamped to the clip under the push of the third elastic member.

[0017] According to some embodiments of the present invention, the tray assembly further includes a base support arranged at the bottom of the second tray, the base support is provided with a first track groove, the second tray is provided with a second track groove corresponding to the first track groove, a rolling element is provided between the first track groove and the second track groove, the second tray is connected to the support rod, and the base support is fixedly connected to the support rod.

[0018] According to some embodiments of the present invention, the second tray is provided with an angle limiting block, the bottom bracket is provided with an angle limiting groove, and the angle limiting block is slidably installed in the angle limiting groove.

[0019] According to some embodiments of the present invention, the mobile refrigerator further includes a water collection tray and a water collection box, the box body is provided with a compressor cabin, the water collection tray is located between the storage compartment and the compressor cabin, the water collection tray is provided with a drainage hole, the drainage hole is used to drain the liquid at the bottom of the storage compartment into the compressor cabin, the water collection box is used to collect the liquid discharged from the drainage hole, the refrigeration system includes a compressor and a refrigerant pipe, the refrigerant pipe is connected to the exhaust port of the compressor, and the refrigerant pipe can heat the liquid in the water collection box.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 is a schematic diagram of a mobile refrigerator in a closed door state according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of a mobile refrigerator with its door open is shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of a mobile refrigerator is shown;

[0025] Figure 4 for Figure 3 A schematic diagram of the connection between the top cover, tray assembly and lifting mechanism is shown;

[0026] Figure 5 for Figure 4 A schematic diagram showing the connection between the lifting mechanism and the support rod;

[0027] Figure 6 for Figure 5 A schematic diagram of the lifting mechanism is shown;

[0028] Figure 7 A schematic diagram of the cooperation between the lifting mechanism and the support rod at an angle;

[0029] Figure 8 Schematic diagram of the coordination between the lifting mechanism and the support rod at another angle;

[0030] Figure 9 for Figure 7 A state diagram showing the first slider and the second slider being separated;

[0031] Figure 10 for Figure 6 A schematic diagram of a portion of the lifting mechanism is shown;

[0032] Figure 11 for Figure 10 A schematic diagram showing the clutch in an engaged state;

[0033] Figure 12 for Figure 10 A schematic diagram showing the clutch in a disengaged state;

[0034] Figure 13 for Figure 4 The connection diagram of the top cover and tray assembly is shown;

[0035] Figure 14 for Figure 13 A schematic diagram of the bottom bracket shown;

[0036] Figure 15 for Figure 13 A schematic diagram of a second tray is shown;

[0037] Figure 16 13 is a schematic diagram of the connection between the first tray and the support rod;

[0038] Figure 17 for Figure 16 A perspective structural diagram of the fastening assembly is shown;

[0039] Figure 18 for Figure 16 A cross-sectional structural view of the fastening assembly shown;

[0040] Figure 19 is a schematic diagram of another embodiment of a tray assembly;

[0041] Figure 20 for Figure 19 A schematic diagram of another state of the tray assembly;

[0042] Figure 21 for Figure 19 A schematic diagram of another state of the tray assembly;

[0043] Figure 22 for Figure 3 A schematic diagram of a storage compartment is shown;

[0044] Figure 23 for Figure 3 A schematic diagram showing one direction of a refrigeration system;

[0045] Figure 24 for Figure 3 A schematic diagram showing another direction of the refrigeration system;

[0046] Figure 25 for Figure 3 A schematic diagram showing another direction of the refrigeration system;

[0047] Figure 26 for Figure 3 A schematic diagram showing one orientation of the compressor, condenser, fan, control panel, and vent;

[0048] Figure 27 for Figure 3 A schematic diagram showing another orientation of the compressor, condenser, fan, control panel, and vent.

[0049] Reference numerals:

[0050] 101. Box body; 102. Top cover;

[0051] 201. opening; 202. support rod; 203. tray assembly;

[0052] 301, storage compartment; 302, walking mechanism; 303, walking wheel; 304, auxiliary wheel; 305, lifting mechanism; 306, press cabin;

[0053] 401, motor; 402, stand; 403, pulley block; 404, clutch; 405, first tray; 406, second tray; 407, avoiding port;

[0054] 501, first wire slot; 502, second wire slot; 503, second fixed pulley;

[0055] 601, first fixed pulley; 602, first movable pulley; 603, second movable pulley; 604, wire reel; 605, first inhaul; 606, second inhaul;

[0056] 701, sliding groove; 702, first sliding block; 703, second sliding block; 704, first elastic member;

[0057] 1001, first connecting sleeve; 1002, second connecting sleeve; 1003, tab; 1004, tabbing part; 1005, operating part; 1006, ring groove; 1007, rotating sleeve; 1008, first fixed column; 1009, second fixed column; 1010, second elastic member;

[0058] 1301, bottom support;

[0059] 1401, rolling member; 1402, first support; 1403, second support; 1404, angle limiting groove;

[0060] 1501, second track groove; 1502, angle limiting block;

[0061] 1601, buckle; 1602, fastening assembly;

[0062] 1701, adjusting button; 1702, mounting frame;

[0063] 1801, third elastic member;

[0064] 1901, fixed disc; 1902, movable disc;

[0065] 2001, notch;

[0066] 2201, water collecting tray; 2202, drain hole; 2203, water collecting groove; 2204, connecting pipe; 2205, evaporator; 2206, through hole; 2207, shell; 2208, inner container;

[0067] 2301, compressor; 2302, condenser; 2303, control panel; 2304, refrigerant pipe; 2305, water collecting box;

[0068] 2401, fan;

[0069] 2501, capillary;

[0070] 2601. Ventilation hole. DETAILED DESCRIPTION

[0071] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0072] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0073] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0074] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0075] Reference Figures 1 to 3 As shown, it can be understood that an embodiment of a mobile refrigerator in the related art includes a box body 101, a driving mechanism and a top cover 102, wherein the box body 101 is provided with an opening 201, the opening 201 is provided on the top surface of the box body 101, and the top cover 102 is used to open or close the opening 201. In this case, the driving mechanism is a lifting mechanism 305. Specifically, referring to Figure 1 As shown, at this time, the lifting mechanism 305 drives the top cover 102 to cover the opening 201, closing the box body 101. Figure 2 As shown, at this time, the lifting mechanism 305 drives the top cover 102 to rise upward, thereby opening the opening 201, making it convenient for the user to take out the food in the refrigerator.

[0076] Reference Figure 3As shown, it can be understood that the box 101 is provided with a storage compartment 301, which is used to store food materials and realize low-temperature storage of food materials. The storage compartment 301 can be a refrigeration compartment, a freezing compartment or a variable-temperature compartment. Moreover, the opening 201 communicates with the storage compartment 301, that is, the opening 201 is located above the storage compartment 301, and users can store food materials in the storage compartment 301 through the opening 201, and also can take out the food materials in the storage compartment 301 through the opening 201.

[0077] Referring to Figure 3 As shown, it can be understood that the mobile refrigerator comprises a walking mechanism 302, which is used to drive the box 101 to move, so that the refrigerator has a moving function, and the mobile refrigerator can be moved to the vicinity of the user, and then the lifting mechanism 305 can lift the tray to facilitate the user to store and take out the goods on the tray, without the user to go to a fixed place to store and take out the goods, thereby improving the use flexibility of the mobile refrigerator and solving the pain point that the user does not want to walk to the refrigerator to take out the goods.

[0078] It can be understood that the walking mechanism 302 comprises a roller arranged at the bottom of the box 101, and the roller is driven to rotate by a power output structure, so as to drive the refrigerator to move forward or backward. For example, Figure 3 As shown, the walking mechanism 302 comprises two walking wheels 303 and an auxiliary wheel 304, the two walking wheels 303 are arranged at the left and right sides of the bottom plate of the refrigerator respectively, the power output structure is connected with the two walking wheels 303 respectively, and the auxiliary wheel 304 is arranged at the front side of the bottom plate.

[0079] Referring to Figures 2 to 4As shown, it can be understood that the mobile refrigerator further comprises a support rod 202 and a tray assembly 203, wherein the upper end of the support rod 202 is fixedly connected to the top cover 102, and the tray assembly 203 is connected to the support rod 202, so that the support rod 202, the tray assembly 203 and the top cover 102 can be connected into an assembly, i.e. the support rod 202, the tray assembly 203 and the top cover 102 can jointly rise and fall in the up-down direction. The lifting mechanism 305 is used to drive the support rod 202, the tray assembly 203 and the top cover 102 to jointly rise and fall. When the lifting mechanism 305 drives the support rod 202, the tray assembly 203 and the top cover 102 to rise, the top cover 102 opens the opening 201, and the food materials carried on the tray assembly 203 can extend out of the opening 201, without the need for the user to reach into the storage compartment 301, thereby facilitating the user to take the food materials. When the lifting mechanism 305 drives the support rod 202, the tray assembly 203 and the top cover 102 to fall, the food materials carried on the tray assembly 203 are collected into the storage compartment 301, and the top cover 102 covers the opening 201 to enclose the food materials in the storage compartment 301. The lifting mechanism 305 can be connected to the tray assembly 203 to drive the support rod 202 and the top cover 102 to rise and fall by driving the tray assembly 203. The lifting mechanism 305 can also be connected to the support rod 202 to drive the tray assembly 203 and the top cover 102 to rise and fall by driving the support rod 202. The lifting mechanism 305 can also be connected to the top cover 102 to drive the tray assembly 203 and the support rod 202 to rise and fall by driving the top cover 102.

[0080] Referring to Figures 4 to 6 As shown, it can be understood that the lifting mechanism 305 comprises a motor 401, a vertical column 402 and a pulley set 403. The support rod 202 is provided with a guide hole, the vertical column 402 is arranged in the guide hole, and the pulley set 403 is connected to the vertical column 402 and the support rod 202 to drive the support rod 202 to rise and fall along the vertical column 402. Since the top cover 102 and the tray assembly 203 are fixed on the support rod 202, and the support rod 202 is sleeved on the vertical column 402, the support rod 202 can be driven to move up and down along the vertical column 402 by the motor 401 driving the pulley set 403 to act, so as to drive the top cover 102 and the tray assembly 203 to rise and fall together, thereby realizing the opening and closing of the door.

[0081] It can be understood that the pulley set 403 comprises a movable pulley, a fixed pulley and a rope. The movable pulley is installed on the support rod 202, the fixed pulley is installed on the vertical column 402, the horizontal position of the fixed pulley is higher than that of the movable pulley, and the rope is arranged around the movable pulley and the fixed pulley. The motor 401 drives the movable pulley to rise or fall relative to the fixed pulley by winding the rope, so as to realize the rising or falling of the support rod 202 relative to the vertical column 402.

[0082] Referring to Figure 6As shown, it can be understood that the pulley set 403 of the embodiment comprises a first fixed pulley 601, a first movable pulley 602, a second movable pulley 603, a winding wheel 604, a first cable 605, and a second cable 606. The first fixed pulley 601 is mounted on one side of the upper end of the stand 402, and the winding wheel 604 is located at the lower end of the stand 402. The first movable pulley 602 and the second movable pulley 603 are located between the first fixed pulley 601 and the winding wheel 604, and the first movable pulley 602 is located above the second movable pulley 603. The winding wheel 604 is axially spaced apart to have a first winding groove 501 and a second winding groove 502, one end of the first cable 605 is wound around the first winding groove 501 and fixed to the winding wheel 604, and the other end is sequentially wound around the first fixed pulley 601 and the first movable pulley 602 and fixed to the stand 402. One end of the second cable 606 is wound around the second winding groove 502 and fixed to the winding wheel 604, and the other end is wound around the second movable pulley 603 and fixed to the stand 402. The winding wheel 604 is connected to a rotating shaft, and the motor 401 is in driving connection with the rotating shaft, so as to drive the first cable 605 and the second cable 606 to be unwound or wound, so that the first movable pulley 602 and the second movable pulley 603 move in the up-down direction. The first movable pulley 602 and the second movable pulley 603 are used to connect the support rod 202 to drive the support rod 202 to rise or fall.

[0083] It can be understood that the first fixed pulley 601, the first movable pulley 602, and the first cable 605 form a lifting assembly, and the second movable pulley 603 and the second cable 606 form a return storage assembly. When the pulley set 403 operates, the motor 401 rotates to drive the winding wheel 604 to rotate in the first direction, so that the second cable 606 wound around the second winding groove 502 is unwound, and the first cable 605 is wound into the first winding groove 501, and the first cable 605 is wound to drive the first movable pulley 602 to rise, thereby driving the support rod 202 to rise; when the motor 401 drives the winding wheel 604 to rotate in the second direction, the first cable 605 wound around the first winding groove 501 is unwound, and the second cable 606 is wound into the second winding groove 502, to drive the second movable pulley 603 to fall, thereby driving the support rod 202 to fall. In other words, due to the arrangement of the lifting assembly and the return storage assembly, one of the first cable 605 and the second cable 606 is unwound when the other is wound, and the support rod 202 is driven by the driving force during the rising or falling process, rather than relying on its own gravity, and the action is highly reliable.

[0084] Referring to Figures 4 to 6As shown, it can be understood that the lifting mechanism 305 includes two pulley sets 403, which are respectively arranged on the two side surfaces of the column 402, and provide upward pulling force from the two sides of the column 402 respectively by the two pulley sets 403, which is beneficial to reduce the pulling force borne by the first cable 605 on one side, and the stress on both sides is more balanced, and the process of the support rod 202 rising is stable and reliable. Similarly, the two pulley sets 403 provide downward pulling force from the two sides of the column 402 respectively, which is beneficial to reduce the pulling force borne by the second cable 606 on one side, and the stress on the support rod 202 is more balanced, and the process of the support rod 202 descending is stable and reliable.

[0085] It can be understood that the first movable pulley 602 and the second movable pulley 603 are respectively connected to the first cable 605 and the second cable 606, and in the unwinding process, the action of the first cable 605 or the second cable 606 is not guided by the driving force, and is prone to looseness or even winding. In order to prevent the first cable 605 or the second cable 606 from loosening or even winding during the process of the support rod 202 rising or descending, the pulley set 403 further includes a tensioning mechanism connected between the first movable pulley 602 and the second movable pulley 603, so that the first cable 605 and the second cable 606 remain in a tensioned state.

[0086] Referring to Figures 7 to 9 As shown, it can be understood that the support rod 202 is provided with a sliding groove 701, and the first sliding block 702 and the second sliding block 703 are arranged in the sliding groove 701, the first movable pulley 602 is connected to the first sliding block 702, and the second movable pulley 603 is connected to the second sliding block 703. The first sliding block 702 and the second sliding block 703 are connected to the first elastic member 704, and under the action of the first elastic member 704, the first sliding block 702 and the second sliding block 703 have a tendency to move towards each other, while the pulling force of the first cable 605 on the first movable pulley 602 and the pulling force of the second cable 606 on the second movable pulley 603 are in opposite directions. By applying a reverse pre-tightening force by the first elastic member 704, the first movable pulley 602 applies a tensioning force to the first cable 605, and the second movable pulley 603 applies a tensioning force to the second cable 606, so that the first cable 605 and the second cable 606 remain in a tensioned state, preventing loosening and winding problems, and improving the operation stability of the lifting assembly.

[0087] Referring to Figure 7 and Figure 9 As shown, it can be understood that the first elastic member 704 can be a tension spring, and the two ends of the tension spring are respectively connected to the first sliding block 702 and the second sliding block 703. By applying a reverse pre-tightening force by the tension spring, the first movable pulley 602 applies a tensioning force to the first cable 605, and the second movable pulley 603 applies a tensioning force to the second cable 606, so that the first cable 605 and the second cable 606 remain in a tensioned state. As Figure 9As shown, when the pulling force of the first cable 605 on the first movable pulley 602 or the pulling force of the second cable 606 on the second movable pulley 603, the tension spring is stretched, which can help to tension the first cable 605 or the second cable 606, prevent loosening or winding.

[0088] It can be understood that the first elastic member 704 can also be selected as an elastic cable, and the two ends of the elastic cable are connected with the two sliding blocks respectively, and the reverse pre-tightening force is applied by the tension spring. Alternatively, the first elastic member 704 can also be selected as a compression spring, and the first sliding block 702 and the second sliding block 703 are connected with a compression spring respectively, and the first sliding block 702 and the second sliding block 703 are pushed to move towards each other by the two compression springs, and the reverse pre-tightening force is applied by the compression spring. Alternatively, the first elastic member 704 can also be selected as a torsion spring, and the first sliding block 702 and the second sliding block 703 are connected with a torsion spring respectively, and the first sliding block 702 and the second sliding block 703 are pushed to move towards each other by the two torsion springs respectively, and the reverse pre-tightening force is applied by the torsion spring.

[0089] Referring to Figures 10 to 12 As shown, it can be understood that in order to facilitate the assembly and debugging of the driving device, the lifting mechanism 305 is provided with a clutch 404, and the clutch 404 includes a first connecting sleeve 1001 and a second connecting sleeve 1002. The first connecting sleeve 1001 and the second connecting sleeve 1002 have teeth capable of being engaged with each other, and the power transmission is realized by the engagement of the two, and the power is disconnected by the separation of the two. The first connecting sleeve 1001 is sleeved on the output shaft of the motor 401, and the second connecting sleeve 1002 is sleeved on the rotating shaft of the winding wheel 604. The first connecting sleeve 1001 is circumferentially fixed with the output shaft of the motor 401 and can move axially relative to the output shaft, and the second connecting sleeve 1002 is fixedly connected with the rotating shaft. Therefore, when the first connecting sleeve 1001 and the second connecting sleeve 1002 are engaged, the power can be transmitted, and the motor 401 drives the winding wheel 604 to rotate. When it is necessary to separate, the first connecting sleeve 1001 is pushed to move along the axial direction of the output shaft, so that the first connecting sleeve 1001 and the second connecting sleeve 1002 are separated, and the power transmission is disconnected.

[0090] One end surface of the first connecting sleeve 1001 is provided with an axial receiving groove, within which a return spring is disposed. The two ends of the return spring are connected to the first connecting sleeve 1001 and the output shaft of the motor 401, respectively. When the return spring is compressed, it pushes the first connecting sleeve 1001 toward the second connecting sleeve 1002, maintaining engagement between the first and second connecting sleeves 1001 and 1002, and allowing the clutch 404 to transmit power. During operation, pushing the first connecting sleeve 1001 away from the second connecting sleeve 1002 disengages the clutch 404, facilitating assembly and commissioning of the drive device, particularly the first and second cables 605 and 606. Once the first connecting sleeve 1001 is released, it automatically resets under the action of the return spring, making operation convenient.

[0091] Reference Figures 10 to 12 As shown, it can be understood that, in order to facilitate operation, a paddle 1003 is provided on the base of the motor 401, and the middle part of the paddle 1003 is rotatably connected to the base, so that the paddle 1003 has a rotation function, one end of the paddle 1003 is a toggle portion 1004, and the other end of the paddle 1003 is an operating portion 1005. An annular groove 1006 is provided on the outer wall of the first connecting sleeve 1001, and the toggle portion 1004 is inserted into the annular groove 1006. The paddle 1003 is toggled by the operating portion 1005, and the toggle portion 1004 pushes the first connecting sleeve 1001 to move axially along the output shaft, thereby realizing the separation of the first connecting sleeve 1001 and the second connecting sleeve 1002.

[0092] It is understood that, corresponding to the state of use of clutch 404, paddle 1003 has a first state and a second state. The first state of paddle 1003 corresponds to the engagement of first and second connecting sleeves 1001, 1002. Paddle 1003 does not apply force to first connecting sleeve 1001, and clutch 404 can transmit power. The second state of paddle 1003 corresponds to the separation of first and second connecting sleeves 1001, 1002. Paddle 1003 applies force to first connecting sleeve 1001, maintaining the separation of first and second connecting sleeves 1001, and clutch 404 cuts off power transmission, facilitating assembly and commissioning of the lifting assembly. To ensure that paddle 1003 remains stable in the first or second state, a second elastic member 1010 is provided on the base to maintain paddle 1003 in the first or second state.

[0093] Reference Figure 10As shown, it can be understood that a rotating sleeve 1007 is provided in the middle of the paddle 1003, and a pin is provided at the base. The rotating sleeve 1007 is mounted on the pin to realize the rotation function of the paddle 1003. A first fixing post 1008 is provided on the outer wall of the rotating sleeve 1007, and a second fixing post 1009 is provided on the base. A gap is reserved between the second fixing post 1009 and the pin. The second elastic member 1010 is a tension spring, one end of which is connected to the first fixing post 1008 and the other end is connected to the second fixing post 1009. In addition, the first fixing post 1008 is offset from the axis connecting the second fixing post 1009 and the rotating sleeve 1007. It can be understood that the first fixed column 1008 changes position as the paddle 1003 rotates. When the first fixed column 1008 is located on the axis connecting the second fixed column 1009 and the rotating sleeve 1007, the distance between the first fixed column 1008 and the second fixed column 1009 is the largest, that is, the tension spring is in the most stretched position.

[0094] like Figure 11 As shown, the paddle 1003 is in the first state, the tension spring is in the non-stretched state, and the paddle 1003 maintains the first state; the paddle 1003 is rotated, and the first fixed column 1008 rotates along with the paddle 1003, wherein the first fixed column 1008 passes through the axis connecting the second fixed column 1009 and the rotating sleeve 1007, and the tension spring reaches the maximum stretched state, and then the contraction force of the tension spring drives the paddle 1003 to continue to rotate; Figure 12 As shown, the paddle 1003 is in the second state. The paddle portion 1004 of the paddle 1003 pushes the first connecting sleeve 1001 and the second connecting sleeve 1002 to keep them separated. The clutch 404 is in the disengaged state. Moreover, under the action of the tension spring, the paddle 1003 remains in the second state, freeing the operator's hands and facilitating assembly, debugging, etc. Therefore, by providing a second elastic member 1010 connecting the paddle 1003 and the base, the paddle 1003 can stably maintain the first state or the second state, achieving a bistable effect.

[0095] It should be noted that the second elastic member 1010 may also be an elastic cable, a compression spring, a torsion spring or the like.

[0096] Reference Figure 5 and Figure 6As shown, it can be understood that, since the first winding groove 501 and the second winding groove 502 are arranged in a spaced manner, the second winding groove 502 is located at one end of the winding wheel 604 away from the stand column 402, the pulley block 403 further comprises two second fixed pulleys 503, the two second fixed pulleys 503 are arranged in a spaced manner from top to bottom and are located above the winding wheel 604, the axial direction of the second fixed pulley 503 is perpendicular to the axial direction of the winding wheel 604, the second winding groove 502 is located at one side of the second fixed pulley 503, and the second movable pulley 603 is located at the other side of the second fixed pulley 503, the second cable 606 is wound from the second winding groove 502, passes through the two second fixed pulleys 503 and the second movable pulley 603 in sequence, and the two second fixed pulleys 503 divert the second cable 606 so that the second cable 606 wound from the second winding groove 502 is aligned with the groove on the outer wall of the second movable pulley 603, which can effectively prevent the second cable 606 from falling off due to the excessive deviation of the relative position between the second winding groove 502 and the second movable pulley.

[0097] It should be noted that the two second fixed pulleys 503 can also be arranged along the axial direction of the winding wheel 604, and the second cable 606 is wound around the upper and lower sides of the two second fixed pulleys 503, respectively, which can also guide the second cable 606 to the second movable pulley 603. In addition, the sizes of the two second movable pulleys 603 can be the same or different, and can be changed according to specific needs during use.

[0098] It should be noted that in other embodiments, the lifting mechanism 305 can also be a linear slide module, and can also be a screw rod lifting assembly or a ladder lifting assembly, which can drive the support rod 202 to slide on the stand column 402. The advantage of using the pulley lifting scheme is that, since the stand column 402 can be arranged in the support rod 202, the part of the lifting mechanism 305 located outside the storage compartment 301 has a small height, and the overall height of the lifting mechanism 305 is reduced, so that the overall installation height of the mobile refrigerator is small and the center of gravity is low.

[0099] It can be understood that in the related art, the refrigerator is generally manually opened, and the door is arranged on the side of the refrigerator and rotates outwardly. However, in a narrow indoor space, it can be difficult to open the door or the direction of the taking-out opening after opening the door is against the user and is not conducive to the user to take and place food. The mobile refrigerator of the embodiment of the present application sets the opening 201 on the top surface of the box body 101, and uses the lifting mechanism 305 to open the opening 201 and push the food upward, so that the user can take out the articles on the tray assembly 203 from multiple directions, thereby facilitating the user to take and place food. In addition, the rising and falling of the top cover 102 does not occupy the radial space of the mobile refrigerator, and the mobile refrigerator can be applied to a narrow indoor space.

[0100] Referring to Figure 13As shown, it can be understood that the tray assembly 203 comprises a first tray 405 and a second tray 406, the first tray 405 and the second tray 406 are connected to the support rod 202 and arranged in layers from top to bottom. The second tray 406 is connected to the end of the support rod 202, and the first tray 405 is above the second tray 406, and the second tray 406 and the first tray 405 are used to place the items that need to be refrigerated.

[0101] It should be noted that the tray assembly 203 can also only include one tray.

[0102] Referring to Figure 13 As shown, it can be understood that the tray assembly 203 further comprises a bottom tray 1301 connected to the bottom end of the support rod 202 and used to support the second tray 406. The second tray 406 is rotationally connected to the bottom tray 1301, and when the second tray 406 rotates relative to the bottom tray 1301, it can rotate around the central axis of the support rod 202, so as to rotate to the desired position.

[0103] When the user needs to take and place the items on the tray assembly 203, the lifting mechanism 305 can push the tray assembly 203 to rise, and then the user can rotate the top cover 102, thereby driving the second tray 406 to rotate around the central axis of the support rod 202 to the appropriate angle, so that the items on the second tray 406 can be closer to the user, so that the user can rotate the second tray 406 to the corresponding angle, thereby without moving the feet to take the items at different positions on the second tray 406, improve the convenience of use, or by pushing the second tray 406 to rotate, so that the empty position on the second tray 406 can be towards the user, thereby facilitating the user to place the items on the empty position of the second tray 406, greatly improving the convenience of the user to take and place the items.

[0104] Referring to Figure 14 and Figure 15As shown, it can be understood that, in order to enable the second tray 406 to rotate smoothly relative to the bottom tray 1301, in some embodiments of the present application, a rolling member 1401, which can be a ball or the like, is arranged between the second tray 406 and the bottom tray 1301. The bottom tray 1301 is provided with a first track groove, which can be an annular groove or a non-closed circular arc groove, and the second tray 406 is provided with a second track groove 1501 corresponding to the first track groove, and the rolling member 1401 is located between the first track groove and the second track groove 1501 so that the second tray 406 is rotationally connected to the bottom tray 1301. When the user rotates the top cover 102, the top cover 102 drives the second tray 406 to push the rolling member 1401 through the support rod 202, so that the rolling member 1401 rolls between the first track groove and the second track groove 1501, thereby enabling the second tray 406 to rotate relative to the bottom tray 1301. Moreover, since the rolling friction of the rolling member 1401 is relatively small, the second tray 406 can rotate relatively smoothly relative to the bottom tray 1301.

[0105] Referring to Figure 14 As shown, it can be understood that, in order to enable the second tray 406 to rotate more smoothly, the number of rolling members 1401 is usually set to be multiple, so that the second tray 406 can obtain support of multiple rolling members 1401 when rotating. However, at this time, the distance between the rolling members 1401 can change, which can easily cause multiple rolling members 1401 to gather in one place, thereby affecting the stability of the rotation of the second tray 406. Therefore, in some embodiments of the present application, the bottom tray 1301 is provided with a first support 1402, and the first support 1402 is provided with multiple limiting holes, and the rolling member 1401 is rotatably installed in the corresponding limiting hole. By providing the first support 1402, the rolling member 1401 is installed in the corresponding limiting hole, so that the distance between adjacent rolling members 1401 can remain unchanged, thereby improving the stability of the rotation of the second tray 406.

[0106] Referring to Figure 14As shown in FIG. 13, it can be understood that, in order to prevent the second tray 406 from undesirably rotating under the condition of external vibration force and the like, in some embodiments of the present application, the bottom support 1301 is further provided with a second support 1403, the top surface of the second support 1403 abuts against the bottom surface of the second tray 406, and the second tray 406 can apply the gravity acting thereon to the second support 1403, so that the frictional resistance between the second support 1403 and the second tray 406 is increased, thereby making it necessary to apply a larger pushing force when pushing the second tray 406 to rotate, and making the second tray 406 have a certain self-locking capability, which can prevent the second tray 406 from undesirably rotating under slight vibration. Specifically, the second support 1403 can be in the form of a ring-shaped disc, and the disc-shaped second support 1403 can increase the contact area with the bottom of the second tray 406, thereby increasing the frictional resistance between the first tray 405 and the second support 1403.

[0107] Referring to Figure 14 and Figure 15 As shown in FIG. 13, it can be understood that, in order to limit the angle range through which the second tray 406 can rotate and prevent the second tray 406 from rotating through a large angle to adversely affect other components, in some embodiments of the present application, the second tray 406 is provided with an angle limiting block 1502, and the second support 1403 is provided with an angle limiting groove 1404, and the angle limiting block 1502 is slidingly installed in the angle limiting groove 1404. When the second tray 406 rotates, the angle limiting block 1502 is driven to rotate in the angle limiting groove 1404, and when the angle limiting block 1502 rotates to the end of the angle limiting groove 1404, the angle limiting block 1502 can no longer continue to rotate, thereby making the second tray 406 unable to continue to rotate, thereby limiting the rotation angle of the second tray 406.

[0108] Referring to Figure 14 As shown in FIG. 13, it can be understood that, in order to make the structure of the rotating assembly more compact, in some embodiments of the present application, the first support 1402 and the second support 1403 are both in the form of a ring, and the second support 1403 is located on the inner side of the first support 1402, so that the first support 1402 and the second support 1403 can be basically arranged in the same plane space, thereby being beneficial to reducing the height dimension of the rotating assembly, making the structure of the rotating assembly more compact, and being beneficial to reducing the space occupied by the tray assembly 203, thereby being beneficial to realizing the miniaturization of the mobile refrigerator.

[0109] Referring to Figure 16As shown, it can be understood that the support rod 202 is provided with a plurality of buckles 1601, which are spaced apart along the height direction of the support rod 202. The first tray 405 can be detachably mounted on any of the buckles 1601, thereby adjusting the distance between the first tray 405 and the second tray 406. Specifically, when it is necessary to place taller items on the second tray 406, the first tray 405 can be adjusted upward to a suitable position, thereby increasing the distance between the first tray 405 and the second tray 406, thereby allowing the placement of taller items on the second tray 406. When it is necessary to place more items and the items are relatively low, the first tray 405 can be moved downward to a suitable position, thereby decreasing the distance between the first tray 405 and the second tray 406, thereby increasing the space above the first tray 405, thereby allowing items to be placed on both the second tray 406 and the first tray 405, thereby increasing the number of items that can be loaded on the tray assembly 203.

[0110] When it is necessary to adjust the distance between the first tray 405 and the second tray 406, the first tray 405 can be removed from the original buckle 1601, and then the first tray 405 can be installed on the buckle 1601 at a suitable position, thereby adjusting the installation position of the first tray 405, so that the distance between the first tray 405 and the second tray 406 can be adjusted to a suitable position to meet the user's usage needs.

[0111] Reference Figures 16 to 18 As shown, it can be understood that the tray assembly 203 further includes a fastening assembly 1602 mounted on the first tray 405. The fastening assembly 1602 includes an adjustment button 1701 and a third elastic member 1801. The adjustment button 1701 is rotatable relative to the first tray 405. One end of the third elastic member 1801 abuts against the adjustment button 1701. Under the elastic force of the third elastic member 1801, the adjustment button 1701 is rotatable relative to the first tray 405 and is engaged with the buckle 1601, thereby allowing the first tray 405 to be mounted on the support rod 202. When it is necessary to adjust the distance between the first tray 405 and the second tray 406, the user can press the adjustment button 1701 to make the adjustment button 1701 overcome the elastic force of the third elastic member 1801 and rotate, so that the adjustment button 1701 disengages from the buckle 1601. At this time, the first tray 405 can slide freely along the support rod 202. At this time, the user can move the first tray 405 to the buckle 1601 at the appropriate position according to the height to be adjusted of the first tray 405, and then release the adjustment button 1701. The adjustment button 1701 rotates under the push of the third elastic member 1801 and is engaged with the buckle 1601, so that the first tray 405 can be installed at the corresponding position of the support rod 202, thereby realizing the adjustment of the distance between the first tray 405 and the second tray 406, and the adjustment is quick and convenient.

[0112] Referring to Figure 17 and Figure 18 It can be understood that the fastening assembly 1602 further comprises a mounting bracket 1702 connected to the lower end of the first tray 405 by fasteners such as bolts, and the adjusting button 1701 is rotatably mounted on the mounting bracket 1702, so that the adjusting button 1701 can rotate relative to the first tray 405.

[0113] Referring to Figure 4 and Figure 13 It can be understood that the outer edge of the first tray 405 has an avoiding opening 407, which is located above the second tray 406. When the second tray 406 is placed with an article having a large height dimension, the article can be extended from below the avoiding opening 407, so as to avoid the top of the article from colliding with the bottom of the first tray 405. It should be noted that the first tray 405 can also rotate around the central axis of the support rod 202, so that the user can rotate the first tray 405 to rotate the avoiding opening 407 on the first tray 405 to a suitable position for placing an article having a large height dimension on the second tray 406. For example, the avoiding opening 407 can be rotated to above the empty position of the second tray 406 without loading articles, and then the user can place the desired article having a large height dimension into the empty position of the second tray 406, and at this time the article can be extended from the avoiding opening 407 to above the first tray 405 without colliding with the bottom of the first tray 405.

[0114] Referring to Figures 19 to 21 It can be understood that the first tray 405 comprises a fixed disc 1901 and a movable disc 1902, which can be fan-shaped or other shapes. The fixed disc 1901 is connected to the support rod 202, and the outer edge of the fixed disc 1901 has a gap 2001. The movable disc 1902 is movably connected to the fixed disc 1901, and the movable disc 1902 can rotate around the central axis of the support rod 202, so that the movable disc 1902 can be unfolded outwardly or folded inwardly relative to the fixed disc 1901 to cover at least part of the gap 2001, so as to adjust the unfolding angle of the first tray 405, change the unfolding area of the first tray 405, and thus change the area of the first tray 405 shielding the space above the second tray 406. Specifically, when the movable disc 1902 rotates relative to the fixed disc 1901 to unfold outwardly, the unfolding angle of the first tray 405 becomes larger, the unfolding area of the first tray 405 becomes larger so that more articles can be placed, but the area of the second tray 406 above which is shielded by the first tray 405 becomes larger, causing the area of the second tray 406 on which an article having a large height dimension can be placed to become smaller. Referring to Figure 19, the movable disc 1902 completely covers the gap 2001 of the fixed disc 1901, so that the first tray 405 can be unfolded to 360 degrees, at this time the first tray 405 is roughly disc-shaped, the first tray 405 can place the most articles, but the second tray 406 cannot place articles with a height higher than the distance between the first tray 405 and the second tray 406. Referring to Figure 20 , when the movable disc 1902 is rotated relative to the fixed disc 1901 and is completely accommodated in the fixed disc 1901, the gap 2001 of the fixed disc 1901 is completely exposed. The first tray 405 can place the least articles, but the second tray 406 can place the most articles with a large height size that can extend out of the gap 2001. Figure 21 , when the movable disc 1902 is rotated relative to the fixed disc 1901 and is completely accommodated in the fixed disc 1901, the gap 2001 of the fixed disc 1901 is completely exposed. The first tray 405 can place the least articles, but the second tray 406 can place the most articles with a large height size that can extend out of the gap 2001.

[0115] The tray mechanism is provided with the second tray 406 and the first tray 405, and the first tray 405 is located above the second tray 406. When an article with a large height size needs to be placed on the second tray 406, the movable disc 1902 of the first tray 405 can be rotated to at least partially accommodate the movable disc 1902 in the fixed disc 1901, so as to reduce the unfolding angle of the first tray 405 and reduce the shielding of the space above the second tray 406 by the first tray 405, so that the user can place an article with a large height size on the second tray 406 without being shielded by the first tray 405, thereby meeting the use requirements of the user.

[0116] Referring to Figure 3 , it can be understood that the box body 101 is provided with a press cabin 306, and the press cabin 306 is located below the storage compartment 301. The motor 401 is located in the press cabin 306. Referring to Figure 22 , it can be understood that the bottom wall of the storage compartment 301 is provided with a through hole 2206, the through hole 2206 communicates the storage compartment 301 and the press cabin 306, and the lifting mechanism 305 can pass through the through hole 2206 and be connected with one of the tray, the support rod 202 or the top cover 102, so as to transmit the power of the motor 401 to the tray, the support rod 202 and the top cover 102.

[0117] It is understandable that at least part of the base 1301 can enter the through hole 2206 , thereby moving at least part of the base 1301 outside the storage compartment 301 , preventing the base 1301 from occupying too much storage space and increasing space utilization in the storage compartment 301 .

[0118] Reference Figures 23 to 25 As shown, it can be understood that the mobile refrigerator of this embodiment of the present invention includes a refrigeration system, which is located in the housing 101. Specifically, the refrigeration system includes a compressor 2301, a condenser 2302, and an evaporator 2205. The evaporator 2205 is used to provide cooling to the storage compartment 301. The compressor 2301 and condenser 2302 are located in the compressor compartment 306. The mobile refrigerator of this embodiment of the present invention also includes a power supply, which is electrically connected to the travel mechanism 302 and the refrigeration system. The power supply can be a battery. During the movement of the mobile refrigerator, the battery can continuously power the travel mechanism 302 and the refrigeration system, allowing the refrigeration system to maintain its working state of providing cooling to the items in the storage compartment 301. In addition, the door can close the opening 201 of the housing 101, reducing cooling air leakage and improving freshness preservation. The placement of the compressor 2301 and condenser 2302 in the compressor compartment 306 improves the space utilization of the storage compartment 301.

[0119] Reference Figure 22 As shown, it can be understood that the housing 101 includes an outer shell 2207 and an inner liner 2208. The inner liner 2208 is located within the outer shell 2207 and defines a storage compartment 301. The heat exchange tubes of the evaporator 2205 are wrapped around the outer wall of the inner liner 2208. The evaporator 2205 provides cooling to the storage compartment 301 through direct cooling, which prevents rapid frost formation on the evaporator 2205 and the need for frequent defrosting. This minimizes temperature fluctuations in the storage compartment 301, ensuring food freshness. Furthermore, it can maintain low temperatures for extended periods, ensuring long-term storage of food, significantly improving product performance and user experience. The need for air duct components is eliminated, reducing space usage and ensuring ample storage space. The evaporator 2205 is wrapped around the inner liner 2208, ensuring that the evaporator 2205 is evenly attached to all four sides of the inner liner 2208. When the evaporator 2205 is operating, cold air is transferred from all sides of the housing 101 to the food, significantly improving direct cooling efficiency.

[0120] Reference Figure 25As shown, it will be understood that the refrigeration system also includes a capillary tube 2501, which is soldered to the evaporator 2205. The front ends of the capillary tube 2501 and the evaporator 2205 are soldered, and the soldered portion serves to cool the refrigerant in the capillary tube 2501. During operation, the refrigerant in the capillary tube 2501 exchanges heat with the refrigerant in the heat exchange tubes of the evaporator 2205. The refrigerant at the inlet of the capillary tube 2501 is a high-temperature, high-pressure gas, while the refrigerant in the evaporator 2205 is a low-temperature liquid. After the heat exchange, the refrigerant at the outlet of the capillary tube 2501 becomes a low-temperature liquid and flows into the evaporator 2205 for evaporation.

[0121] Reference Figure 25 As shown, it can be understood that the capillary tube 2501 is wound around the outer wall of the inner liner 2208 and is disposed adjacent to the heat exchange tube. The proximity of the capillary tube 2501 and the heat exchange tube facilitates heat exchange between the refrigerant in the capillary tube 2501 and the refrigerant in the heat exchange tube of the evaporator 2205. Furthermore, winding the capillary tube 2501 and the heat exchange tube of the evaporator 2205 around the outer wall of the inner liner 2208 helps to extend the heat exchange length and improve the heat exchange efficiency.

[0122] Reference Figure 23 As shown, it can be understood that the mobile refrigerator also includes a control panel 2303, which is placed in the compressor cabin 306. The control panel 2303 is electrically connected to the walking mechanism 302 and the refrigeration system, thereby controlling the forward, backward or stop of the mobile refrigerator, and controlling the start or stop of the refrigeration system.

[0123] Reference Figure 24 、 Figure 26 and Figure 27 As shown, it is understood that the mobile refrigerator also includes a fan 2401, which is located in the compressor compartment 306 and is used to dissipate heat from the compressor 2301 and condenser 2302. Furthermore, the housing 2207 is provided with a vent 2601 that communicates with the compressor compartment 306. When fan 2401 is activated, it rotates, generating airflow. Cool air from the outside can enter and exit the compressor compartment 306 through the vent 2601. Along the way, the cool air exchanges heat with the compressor 2301 and condenser 2302, lowering the temperatures of the compressor 2301 and condenser 2302, as well as the compressor compartment 306. The control board 2303 can also be positioned in the airflow path, allowing the fan 2401 to dissipate heat from the control board 2303.

[0124] Reference Figures 24 to 27As shown, it is understood that compressor 2301 and condenser 2302 are located on opposite sides of fan 2401, wherein fan 2401 can be assembled on condenser 2302 to form a separate component, and control board 2303 is located on the side of condenser 2302 away from fan 2401. The wind direction of fan 2401 is from one side of condenser 2302 to the side of compressor 2301, that is, compressor 2301 uses a blow-by-air cooling method, while control board 2303 and condenser 2302 use a suction-by-air cooling method. The airflow first passes through control board 2303, condenser 2302, and then compressor 2301, so that the airflow passing through control board 2303 is the lowest temperature, which helps protect control board 2303 from damage.

[0125] Reference Figure 24 、 Figure 26 and Figure 27 As shown, it can be understood that some vents 2601 are located on the housing 2207 near the compressor 2301, while others are located on the housing 2207 near the control board 2303, to facilitate air intake and exhaust and dissipate heat from the compressor 2301 and the control board 2303. Furthermore, the compressor 2301, fan 2401, and condenser 2302 are arranged in a straight line, which facilitates airflow dissipation from the compressor 2301. The control board 2303 and condenser 2302 are partially staggered and partially overlapped, effectively utilizing the space in the compressor cabin 306 while reducing heat radiation from the condenser 2302 to the control board 2303.

[0126] It can be understood that when the mobile refrigerator is opened and closed, the cold air inside the refrigerator and the hot air outside exchange heat at the opening 201 to produce condensed water, and the cold air inside the storage compartment 301 and the hot air inside the compressor compartment 306 exchange heat at the through hole 2206 to also produce condensed water, and water droplets adhere to the inner wall of the storage compartment 301.

[0127] Reference Figure 22 As shown, it can be understood that the bottom wall of the storage compartment 301 is provided with a water collecting tray 2201, and the water collecting tray 2201 is provided with a drainage hole 2202. When condensed water accumulates, the water flows downward along the inner wall of the storage compartment 301 and collects in the water collecting tray 2201, and is discharged into the press cabin 306 through the drainage hole 2202, thereby reducing the accumulation of water in the storage compartment 301, improving user experience, and reducing the impact of accumulated water on the preservation effect.

[0128] Reference Figure 22As shown, it can be understood that the water collecting disc 2201 is provided with a water collecting groove 2203, and the drain hole 2202 is located at the bottom of the water collecting groove 2203. The water collecting groove 2203 is a recessed part provided on the side of the water collecting disc 2201 facing the storage compartment 301, which can make the condensed water flow into the water collecting groove 2203 and then be discharged into the compressor cabin 306 through the drain hole 2202. It can be understood that the side wall of the water collecting groove 2203 can be provided with an inclined flow guide surface, so as to more conveniently guide the condensed water to flow into the water collecting groove 2203. The drain hole 2202 is located at the bottom of the water collecting groove 2203, in other words, the drain hole 2202 is located at the lowest point of the upper surface of the water collecting disc 2201, which can make the condensed water more easily discharged through the drain hole 2202 and reduce water accumulation.

[0129] It can be understood that a sealing ring is arranged between the bottom support 1301 and the inner wall of the through hole 2206, when the bottom support 1301 enters the through hole 2206, the sealing ring closes the gap between the bottom support 1301 and the inner wall of the through hole 2206, which can reduce the heat exchange between the cold air inside the storage compartment 301 and the hot air inside the compressor cabin 306, reduce the formation of condensed water, and prevent the condensed water from flowing down from the gap between the bottom support 1301 and the inner wall of the through hole 2206 to damage the components inside the compressor cabin 306.

[0130] Referring to Figure 22 As shown, it can be understood that the mobile refrigerator comprises a connecting pipe 2204, one end of the connecting pipe 2204 communicates with the drain hole 2202, and the other end is located in the compressor cabin 306. The connecting pipe 2204 can guide the condensed water, so that the condensed water is discharged into the predetermined position in the compressor cabin 306 through the connecting pipe 2204, reducing the risk of splashing of the condensed water.

[0131] Referring to Figures 23 to 26 As shown, it can be understood that the mobile refrigerator further comprises a water collecting box 2305, which is located in the compressor cabin 306 and is used for collecting the liquid discharged by the drain hole 2202. The water collecting box 2305 can be located below the drain hole 2202 and can also collect the condensed water without the connecting pipe 2204. The water collecting box 2305 can also be located at other positions, and the drain hole 2202 and the water collecting box 2305 are communicated through the connecting pipe 2204, that is, one end of the connecting pipe 2204 communicates with the drain hole 2202, and the other end is located in the water collecting box 2305. The connecting pipe 2204 can be selected as a bellows, which can elongate and contract its own length, so as to be more suitable for the position changes of the water collecting box 2305 and the drain hole 2202 of different models of mobile refrigerators. Since the compressor cabin 306 is provided with heat generating components such as the compressor 2301 and the condenser 2302, the compressor cabin 306 has a relatively high temperature, which can be used to evaporate the condensed water, not only achieving drainage but also facilitating heat dissipation of the compressor 2301 and the condenser 2302.

[0132] It can be understood that the bottom of the water collecting box 2305 is provided with a positioning protrusion, the end of the connecting pipe 2204 is sleeved on the positioning protrusion, and the outlet end of the connecting pipe 2204 is positioned by the positioning protrusion, so that the two ends of the connecting pipe 2204 can be fixed, and the connecting pipe 2204 is prevented from being deflected during movement of the mobile refrigerator, so that the condensed water is prevented from being thrown out of the water collecting box 2305.

[0133] Referring to FIGS. Figure 23 , Figure 25 and Figure 26 It can be understood that the mobile refrigerator comprises a refrigerant pipe 2304 connected to the exhaust port of the compressor 2301, and part of the refrigerant pipe 2304 is located in the water collecting box 2305. The high-temperature and high-pressure refrigerant flowing out of the compressor 2301 can heat the condensed water in the water collecting box 2305, so that the condensed water can be evaporated into the air.

[0134] It should be noted that in other embodiments, the refrigerant pipe 2304 can also be wound around the outer periphery of the water collecting box 2305, so that the refrigerant pipe 2304 can heat the liquid in the water collecting box 2305.

[0135] The embodiments of the application are described in detail above with reference to the accompanying drawings, but the application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. Mobile refrigerator, characterized in that, include: A box body is provided with a storage compartment and an opening, wherein the opening is connected to the storage compartment and is located on the top surface of the storage compartment; A walking mechanism, used for driving the box to move; a top cover, used for opening or closing the opening; a support rod, the upper end of which is fixedly connected to the top cover; a tray assembly connected to the support rod; A lifting mechanism drives the support rod, the tray assembly and the top cover to rise and fall together; A refrigeration system is provided in the box, the refrigeration system includes an evaporator, and the evaporator is used to provide cooling for the storage compartment; The lifting mechanism includes a column, a motor and a pulley group, the support rod is provided with a guide hole, the column is passed through the guide hole, the pulley group connects the support rod and the column, the column is fixedly connected to the box, and the motor drives the support rod to slide along the axial direction of the column through the pulley group; The driving mechanism that the said cam is in the said cam face is fixedly mounted on the said cam face, and the said cam face is connected with the said cam face to the said cam face. The support rod is provided with a slide groove, in which a first slider and a second slider are installed, the first movable pulley is connected to the first slider, and the second movable pulley is connected to the second slider, and the first slider and the second slider are connected with a first elastic member to keep the first cable and the second cable in a tensioned state; under the action of the first elastic member, the first slider and the second slider have a tendency to move toward each other.

2. The mobile refrigerator according to claim 1, characterized in that: The lifting mechanism also includes a clutch, which includes a first connecting sleeve and a second connecting sleeve that can engage with each other, the first connecting sleeve is sleeved on the output shaft of the motor, and the second connecting sleeve is fixedly connected to the rotating shaft. The first connecting sleeve is circumferentially fixed to the output shaft and can move along the output shaft. A return spring is provided between the first connecting sleeve and the output shaft to enable the first connecting sleeve and the second connecting sleeve to engage with each other.

3. The mobile refrigerator according to claim 2, characterized in that: The lifting mechanism further includes a paddle, the motor is connected to a base, the middle portion of the paddle is rotatably connected to the base, an annular groove is provided on the outer wall of the first connecting sleeve, and one end of the paddle is engaged in the annular groove.

4. The mobile refrigerator according to claim 3, characterized in that: The lifting mechanism also includes a second elastic member, a rotating sleeve is provided in the middle of the paddle, a first fixed column is provided on the outer wall of the rotating sleeve, and a second fixed column is provided on the base. The two ends of the second elastic member are respectively connected to the first fixed column and the second fixed column, and the first fixed column deviates from the axis connecting the second fixed column and the rotating sleeve. The second elastic member acts on the paddle to keep the clutch in an engaged state or a disengaged state.

5. The mobile refrigerator according to claim 1, characterized in that: The tray assembly includes a first tray and a second tray. The first tray and the second tray are connected to the support rod and are arranged in upper and lower layers.

6. The mobile refrigerator according to claim 5, characterized in that: The outer edge of the first tray has an escape opening, and the first tray can rotate around the central axis of the support rod to change the position of the escape opening relative to the second tray.

7. The mobile refrigerator according to claim 5, characterized in that: The first tray includes a fixed tray and a movable tray, the fixed tray is connected to the support rod, the movable tray is movably connected to the fixed tray, the outer edge of the fixed tray has a notch, and the movable tray can rotate around the central axis of the support rod to adjust the expansion angle of the first tray.

8. The mobile refrigerator according to claim 5, characterized in that: The distance between the first tray and the second tray is adjustable.

9. The mobile refrigerator according to claim 8, characterized in that: The support rod is provided with a plurality of clips, and the plurality of clips are arranged at intervals along the height direction of the support rod. The first tray can be detachably mounted on any one of the clips through a fastening assembly. The fastening assembly includes an adjustment button and a third elastic member. The adjustment button can be rotatably set on the first tray and can be clamped to the clip under the push of the third elastic member.

10. The mobile refrigerator according to claim 5, characterized in that: The tray assembly also includes a base support arranged at the bottom of the second tray, the base support is provided with a first track groove, the second tray is provided with a second track groove corresponding to the first track groove, a rolling member is provided between the first track groove and the second track groove, the second tray is connected to the support rod, and the base support is fixedly connected to the support rod.

11. The mobile refrigerator according to claim 10, characterized in that: The second tray is provided with an angle limiting block, and the bottom bracket is provided with an angle limiting groove, and the angle limiting block is slidably installed in the angle limiting groove.

12. The mobile refrigerator according to claim 1, characterized in that: The mobile refrigerator also includes a water collection tray and a water collection box. The box body is provided with a compressor cabin. The water collection tray is located between the storage compartment and the compressor cabin. The water collection tray is provided with a drainage hole. The drainage hole is used to drain the liquid at the bottom of the storage compartment into the compressor cabin. The water collection box is used to collect the liquid discharged from the drainage hole. The refrigeration system includes a compressor and a refrigerant pipe. The refrigerant pipe is connected to the exhaust port of the compressor. The refrigerant pipe can heat the liquid in the water collection box.

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