A vehicle-mounted refrigerator

Abstract

The application discloses a vehicle-mounted refrigerator, which belongs to the technical field of refrigeration equipment and comprises a box body, a refrigeration inner container arranged in the box body, wherein the refrigeration inner container is composed of a middle frame, an upper frame and a lower bottom shell; the middle frame is made of metal and is open at the front side, the upper side and the lower side; the upper frame and the lower bottom shell are made of plastic and are respectively clamped on the upper side and the lower side of the middle frame; the box body is fixedly connected with the upper frame and the lower bottom shell; a box body front opening is arranged on the front side of the box body and corresponds to the open front side of the refrigeration inner container; a refrigeration module is installed on the outside of the box body front opening; an air cooling module is arranged between the refrigeration module and the box body; and an outer shell is fixedly arranged on the outside of the refrigeration module. The refrigeration inner container is designed as a combination of the metal middle frame and the plastic upper frame and lower bottom shell, which can effectively reduce the material cost and the processing complexity while ensuring the heat exchange efficiency; meanwhile, the refrigeration module and the air cooling module are designed as a modular structure which can be independently disassembled, thereby facilitating pre-assembly, testing and later maintenance and repair, and realizing a good balance between performance and cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a vehicle-mounted refrigerator. BACKGROUND

[0002] A vehicle-mounted refrigerator and a vehicle are disclosed in Chinese Patent No. CN202421477734.4. The vehicle-mounted refrigerator comprises a box body, an air duct and a fan. The box body is provided with an air inlet and an air outlet. Two opposite box walls are respectively provided with an air inlet, and the air outlet is located between the two air inlets. The fan is arranged at the air outlet, and the air duct is arranged outside the box body and communicates with the inside of the box body through the air inlets and the air outlet. The fan is used to drive the air in the box body to circulate between the box body and the air duct.

[0003] In the above structure, the evaporator needs to be installed on the box body, and the fan shell is covered outside the box body to form the air duct. The motor is installed in the shell and is in transmission connection with the impeller, which means that the evaporator and the fan need to be assembled on the box body respectively. Since the space inside and outside the vehicle-mounted refrigerator is usually small, the above-mentioned split type installation method has insufficient operation space, which makes the assembly process of the evaporator and the fan more inconvenient. In addition, in order to improve the heat transfer efficiency, the inner container of the box body is made of metal material as a whole, which has high manufacturing cost.

[0004] Therefore, it is still necessary to further improve the structure. SUMMARY

[0005] The present application aims to provide a vehicle-mounted refrigerator to overcome the deficiencies in the prior art.

[0006] A vehicle-mounted refrigerator designed for this purpose comprises a box body.

[0007] A refrigeration inner container is arranged in the box body, and the refrigeration inner container is composed of a middle frame, an upper frame and a lower bottom shell.

[0008] The middle frame is made of metal, and the front side, the upper side and the lower side thereof are open. The upper frame and the lower bottom shell are made of plastic and are respectively clamped on the upper side and the lower side of the middle frame.

[0009] The box body is fixedly connected with the upper frame and the lower bottom shell.

[0010] A box body front opening is arranged on the front side of the box body corresponding to the open front side of the refrigeration inner container.

[0011] A refrigeration module is installed outside the box body front opening.

[0012] An air cooling module is arranged between the refrigeration module and the box body, and an outer shell is fixedly arranged outside the refrigeration module.

[0013] The upper frame is provided with an upper clamping groove, the lower bottom shell is provided with a lower clamping groove, and the upper and lower edges of the middle frame are clamped in the upper clamping groove and the lower clamping groove respectively; the box body is fixedly connected with the upper frame and the lower bottom shell through fasteners.

[0014] The box body, the middle frame, the upper frame and the lower bottom shell jointly form a spacing cavity, the box body is provided with a box body glue injection port for injecting foaming glue into the spacing cavity, and the box body glue injection port is provided with a box body glue injection port cover.

[0015] The air-cooled module comprises a deflector, an air-cooled fan and an air-cooled evaporator.

[0016] The deflector is fixedly connected with the box body, or the upper frame, or the lower bottom shell, or the refrigeration module, the deflector is provided with a first air inlet and a second air inlet, one of the first air inlet and the second air inlet is an air outlet facing away from the refrigeration liner, and the other is an air inlet facing the refrigeration liner.

[0017] The air-cooled fan is fixed on the side of the deflector away from the box body and located on the first air inlet or the second air inlet, and the air-cooled evaporator is fixed on the deflector or the refrigeration module and located on the front side of the air-cooled fan.

[0018] The deflector is provided with a protruding rib facing the refrigeration liner, and the protruding rib is located on one side of the first air inlet or the second air inlet.

[0019] The refrigeration module comprises a partition, a bottom plate, a compressor, a refrigeration fan and a refrigeration evaporator.

[0020] The partition is fixedly connected with the upper frame, or the lower bottom shell, or the box body, or the air-cooled module, and the bottom plate is fixed on the side of the partition away from the box body.

[0021] The compressor and the refrigeration evaporator are fixed on the bottom plate, and the refrigeration fan is fixed on the side of the refrigeration evaporator close to or away from the compressor.

[0022] The outer shell is provided with an outer shell air outlet and an outer shell air inlet.

[0023] The partition is a foaming body pre-formed by foaming; or the partition is composed of a first partition and a second partition, the first partition and the second partition are made of plastic, and the two are fixedly connected and form a partition cavity; the first partition or the second partition is provided with a partition glue injection port for injecting foaming glue into the partition cavity, and the partition glue injection port is provided with a partition glue injection port cover.

[0024] One side of the bottom plate is fixedly connected with the bottom of the second partition member through fasteners, and the other side of the bottom plate is provided with an inclined fixing member which is inclined towards the upper side of the front side of the second partition member and is fixedly connected with the second partition member, so that a triangular fixing structure is formed among the bottom plate, the second partition member and the inclined fixing member.

[0025] The first partition member, the shell and the baffle of the air-cooling module form an air guide cavity.

[0026] The first partition member or the second partition member is respectively extended with an upper partition extension edge and a lower partition extension edge; the bottom and the rear side of the shell are open, and the upper and lower positions of the side of the shell are respectively provided with an upper guide part and a lower guide part, and the upper guide part and the lower guide part are respectively provided with an upper positioning part and a lower positioning part.

[0027] When the shell is assembled, the upper guide part is guided to slide along the upper partition extension edge and is positioned against the front side of the box through the upper positioning part, and the lower guide part is guided to slide along the lower partition extension edge and is positioned against the front side of the lower partition extension edge through the lower positioning part.

[0028] The bottom plate is provided with a lower recess in a direction away from the compressor, the lower recess is fixed with an internally threaded sleeve, the periphery of the internally threaded sleeve is provided with a damping member, and the damping member is provided with a positioning annular groove.

[0029] The bottom of the compressor is fixedly provided with a supporting leg, the supporting leg is provided with a positioning hole, the positioning hole is sleeved on the positioning annular groove, the top of the damping member is provided with a gasket and a fixing bolt, and the fixing bolt is threadedly connected with the internally threaded sleeve after penetrating through the gasket and the damping member.

[0030] The application has the following advantages through the improvement of the above structure:

[0031] 1. The modular design method is adopted, the refrigeration and air-cooling related components are respectively integrated into independent refrigeration modules and air-cooling modules, both of which can be integrally disassembled, which fundamentally changes the split and bulk assembly mode in the prior art, greatly optimizes the assembly process in the narrow space of the vehicle, reduces the assembly difficulty and working hours, and the refrigeration module and the air-cooling module can be pre-assembled and tested as a whole unit, which provides great convenience for the maintenance, repair or upgrade of the vehicle refrigerator.

[0032] 2. The refrigerator liner is composed of a metal middle frame, a plastic upper frame, and a lower bottom shell. This allows the refrigerator liner to use lower-cost materials in non-critical heat exchange areas and retain metal parts in necessary heat conduction areas. This effectively reduces the overall material cost and processing complexity while ensuring the heat exchange efficiency of the refrigerator liner, achieving a good balance between performance and cost. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the assembly structure according to an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the assembly cross-sectional structure according to an embodiment of the present invention.

[0035] Figure 3 for Figure 2 A magnified structural diagram at point A in the diagram.

[0036] Figure 4 for Figure 2 A magnified structural diagram at point B in the diagram.

[0037] Figure 5 for Figure 2 A magnified structural diagram at point C in the diagram.

[0038] Figure 6 for Figure 2 A magnified structural diagram at point D in the diagram.

[0039] Figure 7 This is an exploded structural diagram of an embodiment of the present invention.

[0040] Figure 8 This is an exploded structural diagram from another perspective of an embodiment of the present invention.

[0041] Figure 9 This is an exploded structural diagram of the cabinet, refrigerated inner liner, air-cooled module, door, and control device.

[0042] Figure 10 This is an exploded structural diagram of the cabinet, refrigerated inner liner, air-cooled module, door, and control device from another perspective.

[0043] Figure 11 This is a schematic diagram showing the exploded structure of the refrigerator's inner liner.

[0044] Figure 12 This is a schematic diagram showing the exploded structure of the refrigerator liner from another perspective.

[0045] Figure 13 This is an exploded view of the cooling module.

[0046] Figure 14 This is an exploded structural diagram of the refrigeration module from another perspective.

[0047] Figure 15 This is a schematic diagram of the exploded structure of the separator.

[0048] Figure 16 This is a schematic diagram of the exploded structure of the separator from another perspective.

[0049] Figure 17 This is a schematic diagram of the outer shell.

[0050] Figure 18 This is an exploded view of the refrigeration control unit of the compressor.

[0051] Figure 19 This is an exploded structural diagram of the compressor's refrigeration control unit from another perspective.

[0052] Figure 20 This is a schematic diagram of the assembly structure of the vehicle refrigerator and the center armrest bracket. Detailed Implementation

[0053] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0055] See Figures 1-20 This vehicle-mounted refrigerator includes a body 1; the body 1 contains a refrigerator liner, which is composed of a middle frame 2, an upper frame 3, and a lower shell 4; the middle frame 2 is made of metal and is open on the front, upper, and lower sides; the upper frame 3 and the lower shell 4 are made of plastic and are respectively snapped onto the upper and lower sides of the middle frame 2; the body 1 is fixedly connected to the upper frame 3 and the lower shell 4; the front side of the body 1 is provided with a front opening 1.1 corresponding to the open front side of the refrigerator liner; a refrigeration module is installed on the outside of the front opening 1.1; an air-cooling module is provided between the refrigeration module and the body 1, and an outer shell 5 is fixedly installed on the outside of the refrigeration module.

[0056] This embodiment adopts a modular design, integrating refrigeration and air-cooling components into independent refrigeration and air-cooling modules, both of which can be disassembled and reassembled as a whole. This fundamentally changes the existing separate and disassembled assembly mode, greatly optimizing the assembly process in the confined space of a vehicle. It not only reduces assembly difficulty and time, but also allows the refrigeration and air-cooling modules to be pre-assembled and tested as a single unit, providing great convenience for the maintenance, repair, or upgrade of the vehicle refrigerator. In addition, the refrigerator liner is composed of a metal middle frame 2, a plastic upper frame 3, and a lower bottom shell 4. This allows the refrigerator liner to use lower-cost materials in non-critical heat exchange areas while retaining metal parts in necessary heat-conducting areas. This effectively reduces overall material costs and processing complexity while ensuring the heat exchange efficiency of the refrigerator liner, achieving a good balance between performance and cost.

[0057] The upper frame 3 is provided with an upper slot 3.1, and the lower bottom shell 4 is provided with a lower slot 4.1. The upper and lower edges of the middle frame 2 are respectively engaged in the upper slot 3.1 and the lower slot 4.1; the box body 1 is fixedly connected to the upper frame 3 and the lower bottom shell 4 by fasteners.

[0058] Specifically, the middle frame 2 is made of a metal material with excellent thermal conductivity (such as aluminum alloy or stainless steel), and has an overall U-shaped structure with open front, top, and bottom sides, forming the main support frame and main heat exchange surface of the refrigerated inner liner. The upper frame 3 and the lower shell 4 are injection molded from engineering plastics (such as ABS or PP) and are used to close the upper and lower open sides of the middle frame 2, respectively.

[0059] During assembly, the lower end face of the upper frame 3 is first provided with an upper slot 3.1, and the upper end face of the lower bottom shell 4 is correspondingly provided with a lower slot 4.1. The upper edge of the middle frame 2 is inserted into the upper slot 3.1, and the lower edge is inserted into the lower slot 4.1. Pre-positioning is achieved through interference fit or snap-fit. The width of the upper slot 3.1 and the lower slot 4.1 is slightly larger than the wall thickness of the middle frame 2, and sealing ribs are provided in the slots to prevent the foaming adhesive from overflowing in the subsequent foaming process.

[0060] After pre-positioning, the assembled refrigerated inner liner is placed into the cabinet 1. The cabinet 1 is a metal shell made of sheet metal stamping or a plastic shell made of plastic injection molding. The front side of the cabinet has a front opening 1.1 corresponding to the open front side of the refrigerated inner liner. The cabinet 1 is fixedly connected to the upper frame 3 and the lower bottom shell 4 by fasteners (such as self-tapping screws or bolts) with pre-drilled screw holes.

[0061] A partition cavity 6 is formed between the box body 1, the middle frame 2, the upper frame 3, and the lower shell 4. The box body 1 is provided with a box body glue injection port 1.2 for injecting foaming glue into the partition cavity 6. The box body glue injection port 1.2 is covered with a box body glue injection port cover 7.

[0062] In this embodiment, the cabinet 1, middle frame 2, upper frame 3, and lower shell 4 together form a spacer cavity 6. Before foaming, the refrigerated inner liner is fixed to the cabinet 1. Using a dedicated foaming device, polyurethane foam is injected into the spacer cavity 6 through the cabinet's injection port 1.2. The foam rapidly expands and solidifies within the spacer cavity 6, forming a dense insulation layer that firmly bonds the cabinet 1 and the refrigerated inner liner together. The injection amount must ensure that the foam fills the entire spacer cavity 6 and applies uniform supporting pressure to each component. After foaming is complete, the cabinet's injection port cover 7 is fastened or screwed onto the cabinet's injection port 1.2 to seal the injection port and maintain a clean appearance.

[0063] The air-cooled module includes an air guide plate 8, an air-cooled fan 9, and an air-cooled evaporator 10.

[0064] The air guide plate 8 is fixedly connected to the housing 1, or the upper frame 3, or the lower shell 4, or the refrigeration module. The air guide plate 8 is provided with a first air outlet 8.1 and a second air outlet 8.2. One of the first air outlet 8.1 and the second air outlet 8.2 is an air outlet that discharges air away from the inner liner of the refrigerator, and the other is an air inlet that receives air towards the inner liner of the refrigerator.

[0065] In this embodiment, the first air outlet 8.1 is the air outlet, and the second air outlet 8.2 is the air inlet. The air-cooled fan 9 is a centrifugal fan or an axial fan, which is fixed to the back side of the air guide plate 8 by bolts and faces the first air outlet 8.1 to drive the air inside the refrigerator liner to flow through the first air outlet 8.1 and be discharged. The air discharged outside the refrigerator liner exchanges heat with the air-cooled evaporator 10, and then re-enters the refrigerator liner through the second air outlet 8.2 to achieve air cooling inside the refrigerator liner.

[0066] The air-cooled fan 9 is fixed on the side of the air guide plate 8 away from the housing 1 and located on the first air outlet 8.1 or the second air outlet 8.2. The air-cooled evaporator 10 is fixed on the air guide plate 8 or the refrigeration module and located in front of the air-cooled fan 9.

[0067] In this embodiment, the air-cooled evaporator 10 is located on the side close to the refrigeration module, and the fins of the air-cooled evaporator 10 are parallel to the airflow direction to facilitate heat exchange.

[0068] The air guide plate 8 has a raised rib 8.3 protruding towards the inner liner of the refrigerator. The raised rib 8.3 is located on one side of the first air vent 8.1 or the second air vent 8.2.

[0069] In this embodiment, multiple ribs 8.3 are provided and located on one side of the first air vent 8.1 and the second air vent 8.2. They are used to guide the airflow direction, which not only reduces eddy current loss and improves air cooling efficiency, but also prevents the refrigerated objects inside the refrigerated liner from blocking or obstructing the first air vent 8.1 and the second air vent 8.2.

[0070] The refrigeration module includes a partition, a base plate 11, a compressor 12, a refrigeration fan 13, and a refrigeration evaporator 14.

[0071] The partition is fixedly connected to the upper frame 3, or the lower shell 4, or the box body 1, or the air-cooling module, and the bottom plate 11 is fixed on the side of the partition away from the box body 1.

[0072] The compressor 12 and the evaporator 14 are fixed on the base plate 11; the refrigeration fan 13 is fixed on the side of the evaporator 14 that is close to or far from the compressor 12.

[0073] In this embodiment, the compressor 12 is preferably a miniature DC inverter compressor, which is fixed to the mounting position on the base plate 11 by bolts. The evaporator 14 is fixed to the base plate 11 by a bracket, and its refrigerant pipeline is connected in series with the compressor 12, the evaporator 14 and the throttling device to form a refrigeration circuit.

[0074] The outer casing 5 is provided with an air outlet 5.1 and an air inlet 5.2.

[0075] In this embodiment, the cooling fan 13 is fixed on the side of the evaporator 14 away from the compressor 12. The air outlet 5.1 of the outer casing is located on one side of the outer casing 5 and corresponds to the cooling fan 13. The cooling fan 13 is used to exhaust the air inside the outer casing 5 to achieve forced heat dissipation of the evaporator 14 and the compressor 12. The air outlet 5.1 of the outer casing and the air inlet 5.2 of the outer casing can achieve air convection between the inside and outside of the outer casing 5.

[0076] The partition is a pre-foamed structure. This foam is prefabricated using high-density polyurethane material, providing excellent thermal insulation and structural strength. Its shape matches the front opening 1.1 of the housing and is fixed to the housing 1 by adhesive or screws. This design simplifies the assembly process and is suitable for mass production.

[0077] In addition, the partition is composed of a first partition 15 and a second partition 16, which are made of plastic and are fixedly connected to form a partition cavity 17. The first partition 15 or the second partition 16 is provided with a partition glue injection port 16.1 for injecting foaming adhesive into the partition cavity 17, and the partition glue injection port 16.1 is covered with a partition glue injection port cover 18.

[0078] A glue inlet 16.1 is provided on the second partition 16. Corresponding fastening holes are provided between the first partition 15 and the second partition 16, which are then fixed together by fasteners. After assembly, polyurethane foam is injected into the partition cavity 17 through the glue inlet 16.1 using a dedicated foaming device. The foam rapidly expands and solidifies within the partition cavity 17, forming a dense insulation layer that firmly bonds the first partition 15 and the second partition 16 together. The injection volume must ensure that the foam fills the entire partition cavity 17 and applies uniform supporting pressure to all components. After foaming, the glue inlet cover 18 is fastened or screwed onto the glue inlet 16.1 to seal the inlet and maintain a clean appearance.

[0079] In this embodiment, the separator cooperates with the front opening 1.1 of the cabinet to make the refrigerator liner as a whole rectangular shape. The air-cooling module is modularly set between the separator and the front opening 1.1 of the cabinet to make the refrigerator liner form an air-cooled refrigeration mode, which has a better and more uniform refrigeration effect.

[0080] One side of the base plate 11 is fixedly connected to the bottom of the second partition 16 by fasteners, and the other side of the base plate 11 is provided with an inclined fixing member 19. The inclined fixing member 19 is inclined upward towards the front side of the second partition 16 and fixedly connected to the second partition 16, so that a triangular fixing structure is formed between the base plate 11, the second partition 16, and the inclined fixing member 19.

[0081] In this embodiment, the bottom of the second partition 16 is provided with a recess 16.2, and one side of the bottom plate 11 extends into the recess 16.2 and is provided with corresponding fastening holes. The two are fixed to each other by fasteners.

[0082] Since the base plate 11, the second partition 16, and the inclined fixing member 19 form a triangular fixing structure, the compressive and vibration resistance between the base plate 11 and the partition is significantly improved. In addition, the inclined fixing member 19 has a low space occupancy rate, which is conducive to the space utilization of the base plate 11 and facilitates the assembly of the compressor 12, the refrigeration fan 13 and the refrigeration evaporator 14.

[0083] An air guide cavity 20 is formed between the first partition 15, the outer shell 5, and the air guide plate 8 of the air-cooled module, which is used to guide the air-cooled airflow. The air-cooled fan 9 and the air-cooled evaporator 10 are both located in the air guide cavity 20.

[0084] The upper and lower ends of the first partition 15 or the second partition 16 are respectively extended with an upper extension edge 21 and a lower extension edge 22; the bottom and rear side of the outer shell 5 are open, and the upper guide part 5.3 and the lower guide part 5.4 are respectively provided at the upper and lower positions of the side of the outer shell 5, and the upper positioning part 5.5 and the lower positioning part 5.6 are respectively provided on the upper guide part 5.3 and the lower guide part 5.4.

[0085] In this embodiment, the upper ends of the first partition 15 and the second partition 16 both extend with an upper extension edge 21, and the lower end of the second partition 16 extends with a lower extension edge 22. During assembly, the upper guide portion 5.3 slides along the upper extension edge 21 of the partition and is positioned against the front side of the housing 1 by the upper positioning portion 5.5, and the lower guide portion 5.4 slides along the lower extension edge 22 of the partition and is positioned against the front side of the lower extension edge 22 of the partition by the lower positioning portion 5.6.

[0086] In this embodiment, the outer shell 5 is assembled on the front side of the housing 1 by a front-to-back guided sliding method. The assembly method is quick and convenient, which greatly facilitates the maintenance of the refrigeration module and also makes it easy to disassemble and assemble the outer shell 5 in the narrow space of the vehicle.

[0087] There are corresponding fastening holes between the bottom of the housing 1 and the lower shell 4, and the two are fixed to each other by fasteners.

[0088] The front opening 1.1 of the housing has inward bending sections 1.4 on both sides. The upper frame 3 and the lower shell 4 are respectively provided with upper bending sections 3.2 and lower bending sections 4.2 corresponding to the bending sections 1.4. The bending sections 1.4, upper bending sections 3.2, lower bending sections 4.2 and the first partition 15 are provided with corresponding fastening holes and are fixed to each other by fasteners.

[0089] The top of the air guide plate 8 is provided with a support edge 8.4 and is supported on the top of the upper frame 3 by the support edge 8.4. There are corresponding fastening holes between the support edge 8.4 and the upper frame 3, and they are fixed to each other by fasteners.

[0090] The front side of the lower shell 4 also extends a front connecting edge 4.3, and the first partition 15 is also provided with a partition connecting edge 15.1. Corresponding fastening holes are provided between the box body 1, the front connecting edge 4.3, and the partition connecting edge 15.1, and they are fixed to each other by fasteners.

[0091] The first partition 15 has corresponding fastening holes between its end and the side of the outer shell 5, and they are fixed to each other by fasteners.

[0092] The top of the first partition plate 15 and the support edge 8.4 are provided with corresponding fastening holes, and they are fixed to each other by fasteners.

[0093] The base plate 11 has a recessed portion 11.1 in the direction away from the compressor 12. An internally threaded sleeve 23 is fixed on the recessed portion 11.1. A shock absorber 24 is sleeved around the internally threaded sleeve 23. A positioning annular groove is provided on the shock absorber 24.

[0094] The compressor 12 is fixedly provided with a support foot 12.1 at the bottom. The support foot 12.1 is provided with a positioning hole, which is fitted into the positioning annular groove. The top of the shock absorber 24 is provided with a washer 25 and a fixing bolt 26. The fixing bolt 26 passes through the washer 25 and the shock absorber 24 and is threadedly connected to the internal threaded sleeve 23.

[0095] Given that compressor 12 must not be installed upside down or at an angle, and to facilitate future maintenance and disassembly, fixing bolts 26 must be installed from top to bottom. However, the limited installation space inside the vehicle's armrest box restricts the overall height of the vehicle refrigerator, requiring compressor 12 to be installed at its lowest possible height. But as a standard component, the height of compressor 12's support legs 12.1 is not adjustable. Reducing the height of the shock absorber 24 would inevitably weaken its vibration damping and noise reduction effect. These factors constitute a technical contradiction between structural compactness, maintainability, and vibration damping performance.

[0096] In this embodiment, the base plate 11 is stamped with a recessed portion 11.1. An internally threaded sleeve 23 is welded and fixed to the bottom surface of the recessed portion 11.1. The fixing bolt 26 passes through the washer 25, the shock absorber 24, and the support leg 12.1 from top to bottom and is then fastened to the internally threaded sleeve 23. This structure provides installation height space through the recessed portion 11.1, so that the overall height of the compressor 12, the shock absorber 24, and the fastening structure is embedded within the contour of the base plate 11. This ensures both the connection strength of the compressor 12 and the effective working height of the shock absorber 24, while also ensuring that it does not exceed the installation height limit inside the outer casing 5. This achieves the technical effect of balancing shock absorption performance and maintainability within a limited space.

[0097] The positioning hole is fitted onto the positioning annular groove, enabling lateral positioning of the compressor 12. The shock absorber 24 uses rubber, silicone, or spring damping pads, providing excellent buffering and vibration absorption performance. Furthermore, by adjusting the tightening torque of the fixing bolts 26, the compression of the shock absorber 24 can be controlled to achieve optimal vibration damping. This structure effectively isolates the vibration of the compressor 12 from being transmitted to the housing 1, reducing noise and improving the user experience.

[0098] To achieve a sealed refrigerated inner liner, a door 27 is hinged to the upper frame 3 in this embodiment.

[0099] Specifically, hinge holes are symmetrically provided at both ends of the upper frame 3, and two doors 27 are provided. Hinges are respectively provided on the outer side of the two doors 27. The hinges are hinged to the hinge holes so that the two doors 27 can be hinged to open and close on the upper frame 3 and open and close the refrigerator liner.

[0100] Preferably, a torsion spring is fitted onto the hinge shaft, with one end of the torsion spring acting on the door body 27 and the other end acting on the upper frame 3, providing a driving force for the door body 27 to close automatically. A sealing strip is embedded around the inner perimeter of the door body 27, and the sealing strip seals the inner liner of the refrigerator after the door body 27 is closed, preventing cold air leakage.

[0101] Door latches are provided on the free side (the side opposite to the hinge side) of the two door panels 27. The door latches can be push-button type, rotary type or electronic lock type. In this embodiment, electronic locks are preferred.

[0102] The upper frame 3 is also equipped with a control device 30, which includes a control box, a control circuit board, and an operation panel. The control box is fixedly installed on the upper frame 3, and the control circuit board is installed inside the control box and is electrically connected to the operation panel, door lock, refrigeration module, air-cooling module, human-machine interaction and vehicle power supply to realize intelligent control of the vehicle.

[0103] Since both the air-cooled evaporator 10 and the refrigeration evaporator 14 produce condensate during operation, to prevent moisture from affecting the safety of electrical connections, this embodiment incorporates a highly waterproof aviation socket 28 on the separator. The compressor 12 connects to the aviation socket 28 via a corresponding aviation plug, thus achieving reliable waterproofing of the electrical control connection. Furthermore, the detachable connection between the aviation plug and socket facilitates the overall disassembly and subsequent maintenance of the refrigeration module, demonstrating good practicality.

[0104] In this embodiment, the top side of the first partition 15 and the second partition 16 are respectively provided with a corresponding receiving part 15.2 and a mounting part 15.3. The aviation socket 28 is supported by the receiving part 15.2 and fixed on the mounting part 15.3, thereby realizing the installation and positioning of the aviation socket 28. Thanks to the top layout of the receiving part 15.2 and the mounting part 15.3, the aviation socket 28 is located at the top of the first partition 15 and the second partition 16 after assembly, which can avoid the contact of condensate water and facilitate the docking operation between the aviation plug and the aviation socket 28.

[0105] The compressor 12 is also equipped with a refrigeration control unit, which includes a control sealing box 31 and a refrigeration control board. The refrigeration control board is fixed inside the control sealing box 31 and has a control board conductive seat 32 on the side facing the compressor 12. The control sealing box 31 has a box protrusion opening 31.1 corresponding to the control board conductive seat 32, and a box snap-fit ​​part 31.2 is provided on its side. The compressor 12 has a compressor conductive pin 12.2 on its side, and a compressor protrusion ring 12.3 is provided on the compressor 12 corresponding to the compressor conductive pin 12.2. A snap-fit ​​hole 12.4 is provided around the compressor protrusion ring 12.3. During assembly, the control sealing housing 31 extends into the compressor convex ring 12.3 through the housing protrusion opening 31.1 and engages with the snap-fit ​​hole 12.4 using the housing snap-fit ​​part 31.2. Simultaneously, the compressor conductive pin 12.2 is inserted into the control board conductive base 32, thereby achieving electrical connection between the compressor 12 and the refrigeration control board, and mechanical fixation between the control sealing housing 31 and the compressor 12. The housing protrusion opening 31.1 and the compressor convex ring 12.3 are sealed using a tight fit or by adding a sealing element. Furthermore, the refrigeration control board has an electrical control plug-in part 33 on the side away from the separator, and the control sealing housing 31 has a corresponding plug-in opening. Both ends of the electrical connection cable are equipped with aviation plugs; one end of the aviation plug passes through the plug-in opening and plugs into the electrical control plug-in part 33, while the other end of the aviation plug plugs into the aviation socket 28. Therefore, the compressor 12 and the refrigeration control unit are connected by a snap-fit ​​method, and the refrigeration control unit and the aviation socket 28 are connected by a plug-in electrical connection, which effectively achieves the effect of quick assembly and disassembly of the refrigeration module and facilitates daily maintenance.

[0106] In this embodiment, the upper frame 3 has a protrusion extending from its rear side, and the control box is fixed on the protrusion. For aesthetic purposes, the middle frame 2 also has a protruding mating part extending from its rear side. A connector 29 is provided on the protruding mating part, and a connecting groove 29.1 is provided at the bottom of the connector 29. The upper edge of the protruding mating part on the rear side of the middle frame 2 is inserted into the connecting groove 29.1, and pre-positioning is achieved through interference fit or snap-fit. The groove width of the connecting groove 29.1 is slightly larger than the wall thickness of the middle frame 2, and a sealing rib is provided in the groove to prevent the foaming adhesive from overflowing in the subsequent foaming process. In addition, the box body 1 is provided with a box body groove 1.3 corresponding to the protrusion on the rear side of the upper frame 3. The lower edge of the protrusion on the rear side of the upper frame 3 is inserted into the box body groove 1.3, and pre-positioning is achieved through interference fit or snap-fit. The groove width of the box body groove 1.3 is slightly larger than the wall thickness of the upper frame 3, and a sealing rib is provided in the groove to prevent the foaming adhesive from overflowing in the subsequent foaming process.

[0107] In this embodiment, the vehicle refrigerator is installed in the center armrest of the vehicle. Addressing the challenges of limited space and difficult installation in the center armrest area, this embodiment employs a modular design, breaking down the refrigeration and air-cooling modules into independent components that can be detached and installed on the housing 1. This allows for efficient and convenient rapid installation within the extremely limited space of the center armrest. During assembly, the housing 1, equipped with the refrigeration liner, air-cooling module, and door 27, is first embedded into the cavity of the center armrest bracket 36. The refrigeration module is then installed on the housing 1. A sliding storage tray 35 is integrated above the center armrest bracket 36. This tray 35 can be installed after the refrigerator is assembled. After assembly, the tray 35 can slide along the front-rear direction of the center armrest bracket 36, serving as a storage platform and allowing for flexible opening or concealment of the door 27, maximizing space integration and utilization.

[0108] In terms of heat dissipation efficiency, both the outer casing air outlet 5.1 and the outer casing air inlet 5.2 are set towards the front of the vehicle. The outer casing air inlet 5.2 is directly facing the air outlet area of ​​the vehicle's center console, which can directly introduce forced airflow from the vehicle's air conditioning system, thereby significantly improving heat dissipation efficiency, reducing the operating temperature of the cooling module, and ensuring long-term stable operation of the system. At the same time, the cooling fan 13 and the outer casing air outlet 5.1 work together to achieve air convection, thereby achieving the purpose of structural simplification and cost optimization.

[0109] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted refrigerator, comprising a cabinet (1), characterized in that: The box (1) is equipped with a refrigerated inner liner, which is composed of a middle frame (2), an upper frame (3) and a lower shell (4); The middle frame (2) is made of metal and is open on the front, top and bottom sides. The upper frame (3) and the lower bottom shell (4) are made of plastic and are respectively snapped onto the upper and lower sides of the middle frame (2). The box body (1) is fixedly connected to the upper frame (3) and the lower bottom shell (4); The front side of the box (1) is provided with a front opening (1.1) corresponding to the open front side of the refrigerated inner liner. A refrigeration module is installed on the outside of the front opening (1.1) of the enclosure; The refrigeration module includes a partition, a base plate (11), a compressor (12), a refrigeration fan (13), and a refrigeration evaporator (14); the partition is fixedly connected to the upper frame (3), or the lower bottom shell (4), or the housing (1); the base plate (11) is fixed to the side of the partition away from the housing (1); the compressor (12) and the refrigeration evaporator (14) are fixed on the base plate (11); the refrigeration fan (13) is fixed to the side of the refrigeration evaporator (14) near or away from the compressor (12); One side of the base plate (11) is fixedly connected to the bottom of the second partition (16) in the partition by fasteners. The other side of the base plate (11) is provided with an inclined fixing member (19). The inclined fixing member (19) is inclined upward towards the front side of the second partition (16) and fixedly connected to the second partition (16) so that a triangular fixing structure is formed between the base plate (11), the second partition (16), and the inclined fixing member (19). The base plate (11) has a recessed portion (11.1) facing away from the compressor (12). An internally threaded sleeve (23) is fixed on the recessed portion (11.1). A shock absorber (24) is sleeved around the internally threaded sleeve (23). A positioning annular groove is provided on the shock absorber (24). A support leg (12.1) is fixedly provided at the bottom of the compressor (12). A positioning hole is provided on the support leg (12.1). The positioning hole is sleeved on the positioning annular groove. A gasket (25) and a fixing bolt (26) are provided on the top of the shock absorber (24). The fixing bolt (26) passes through the gasket (25) and the shock absorber (24) and is threadedly connected to the internally threaded sleeve (23). An air-cooled module is provided between the refrigeration module and the housing (1), and an outer shell (5) is fixedly provided on the outside of the refrigeration module; The upper and lower ends of the partition are respectively extended with an upper extension edge (21) and a lower extension edge (22); the bottom and rear side of the outer shell (5) are open, and the upper and lower positions of the side of the outer shell (5) are respectively provided with an upper guide part (5.3) and a lower guide part (5.4), and the upper guide part (5.3) and the lower guide part (5.4) are respectively provided with an upper positioning part (5.5) and a lower positioning part (5.6); when the outer shell (5) is assembled, the upper guide part (5.3) slides along the upper extension edge (21) of the partition and is positioned against the front side of the box (1) by the upper positioning part (5.5), and the lower guide part (5.4) slides along the lower extension edge (22) of the partition and is positioned against the front side of the lower extension edge (22) of the partition by the lower positioning part (5.6).

2. The vehicle-mounted refrigerator according to claim 1, characterized in that: The upper frame (3) is provided with an upper slot (3.1), and the lower bottom shell (4) is provided with a lower slot (4.1). The upper and lower edges of the middle frame (2) are respectively engaged in the upper slot (3.1) and the lower slot (4.1). The box body (1) is fixedly connected to the upper frame (3) and the lower bottom shell (4) by fasteners.

3. The vehicle-mounted refrigerator according to claim 1, characterized in that: The box body (1) together with the middle frame (2), the upper frame (3) and the lower bottom shell (4) form a spacer cavity (6). The box body (1) is provided with a box body glue injection port (1.2) for injecting foaming glue into the spacer cavity (6). The box body glue injection port (1.2) is covered with a box body glue injection port cover (7).

4. The vehicle-mounted refrigerator according to claim 1, characterized in that: The air-cooled module includes an air guide plate (8), an air-cooled fan (9), and an air-cooled evaporator (10); the air guide plate (8) is fixedly connected to the housing (1), or the upper frame (3), or the lower shell (4), or the refrigeration module; the air guide plate (8) is provided with a first air outlet (8.1) and a second air outlet (8.2), one of the first air outlet (8.1) and the second air outlet (8.2) is an air outlet that discharges air away from the refrigerator liner, and the other is an air inlet that receives air from the refrigerator liner; the air-cooled fan (9) is fixed on the side of the air guide plate (8) away from the housing (1) and located at the first air outlet (8.1). 8.1) or the second air outlet (8.2), the air-cooled evaporator (10) is fixed on the air guide plate (8) or the refrigeration module and is located in front of the air-cooled fan (9).

5. The vehicle-mounted refrigerator according to claim 4, characterized in that: The air guide plate (8) has a raised rib (8.3) protruding towards the refrigerated inner liner. The raised rib (8.3) is located on one side of the first air vent (8.1) or the second air vent (8.2).

6. The vehicle-mounted refrigerator according to claim 1, characterized in that: The separator is a pre-foamed foam body; or, the separator is composed of a first partition (15) and a second partition (16), the first partition (15) and the second partition (16) are made of plastic, and the two are fixedly connected to form a partition cavity (17); the first partition (15) or the second partition (16) is provided with a partition glue injection port (16.1) for injecting foaming glue into the partition cavity (17), and the partition glue injection port (16.1) is covered with a partition glue injection port cover (18).

7. The vehicle-mounted refrigerator according to claim 6, characterized in that: An air guide cavity (20) is formed between the first partition (15), the outer shell (5), and the air guide plate (8) of the air-cooled module.

8. The vehicle-mounted refrigerator according to claim 1, characterized in that: The upper extension edge (21) and the lower extension edge (22) of the partition are respectively disposed at the upper and lower ends of the partition; the upper guide part (5.3) of the outer shell (5) slides along the upper extension edge (21) of the partition and is positioned against the front side of the box (1) by the upper positioning part (5.5); the lower guide part (5.4) slides along the lower extension edge (22) of the partition and is positioned against the front side of the lower extension edge (22) of the partition by the lower positioning part (5.6).

9. The vehicle-mounted refrigerator according to claim 1, characterized in that: The separator is provided with an aviation socket (28), which is supported and fixed by the receiving part (15.2) at the top of the separator. The compressor (12) is connected to the aviation socket (28) by an aviation plug. Alternatively, the compressor (12) is provided with a compressor protrusion ring (12.3) and a snap-fit ​​hole (12.4) on its side. The compressor (12) is provided with a control sealing box (31), which is provided with a box protrusion opening (31.1) and a box snap-fit ​​part (31.2). The box protrusion opening (31.1) extends into the compressor protrusion ring (12.3), and the box snap-fit ​​part (31.2) engages with the snap-fit ​​hole (12.4).

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