Vehicle-mounted refrigerator, vehicle-mounted system and vehicle

Abstract

The utility model relates to a vehicle-mounted refrigerator, a vehicle-mounted system and a vehicle. The vehicle-mounted refrigerator comprises a shell provided with a first containing cavity; the fan is provided with an air inlet and an air outlet; the drawer is movably arranged in the first containing cavity, and a first ventilation hole is formed in the drawer; wherein the first ventilation hole is arranged corresponding to the air inlet, and the area of the first ventilation hole is larger than that of the air inlet, or the first ventilation hole is arranged corresponding to the air outlet, and the area of the first ventilation hole is larger than that of the air outlet. According to the technical scheme, the refrigerating and heating efficiency of the vehicle-mounted refrigerator is improved.

Description

TECHNICAL FIELD

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

[0002] At present, when the vehicle-mounted refrigerator is working, the compressor, the condenser and the evaporator work together to realize compression refrigeration. Then, the fan blows the cold air at the evaporator into the interior of the refrigerator shell in two ways. One way is to directly blow the cold air into the refrigeration cavity to cool the refrigeration seat. The other way is to blow the cold air into the air duct of the refrigerator shell through the refrigeration air duct, pass through the cold air tank, and finally blow the cold air into the interior of the refrigeration drawer to cool the interior of the refrigeration drawer. The refrigeration cycle is completed. When the vehicle-mounted refrigerator is working, only the heater works. Similarly, the heat generated by the heater is blown into the interior of the refrigerator shell in two ways through the air cooling fan to realize the heating and heat preservation cycle.

[0003] However, the above structure needs a long air duct to deliver the cold air or hot air to the interior of the refrigerator, thereby reducing the refrigeration and heating efficiency of the vehicle-mounted refrigerator. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a vehicle-mounted refrigerator, a vehicle-mounted system and a vehicle. The refrigeration and heating efficiency of the vehicle-mounted refrigerator is improved to at least partially solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a vehicle-mounted refrigerator is provided, comprising: a shell having a first accommodating cavity; a fan having an air inlet and an air outlet; a drawer movably arranged in the first accommodating cavity, the drawer being provided with a first ventilation hole; wherein the first ventilation hole is arranged corresponding to the air inlet, and the area of the first ventilation hole is greater than the area of the air inlet, or the first ventilation hole is arranged corresponding to the air outlet, and the area of the first ventilation hole is greater than the area of the air outlet.

[0006] Optionally, the drawer comprises a first side plate, a second side plate and a third side plate which are sequentially connected and arranged at an angle, the first side plate and the third side plate are located on the same side of the second side plate, the second side plate is arranged opposite to the fan, and the first ventilation hole is arranged on the second side plate.

[0007] Optionally, the first side plate and / or the third side plate is / are provided with a second ventilation hole, and the second ventilation hole is in communication with the first accommodating cavity.

[0008] Optionally, the first ventilation hole and / or the second ventilation hole comprises at least one of a polygonal hole, a circular hole and a waist-shaped hole.

[0009] Optionally, the first ventilation hole comprises a plurality of first ventilation sub-holes, the area of the first ventilation sub-hole close to the center of the second side plate is smaller than the area of the first ventilation sub-hole close to the edge of the second side plate, or the areas of the plurality of first ventilation sub-holes are the same.

[0010] Optionally, the plurality of first ventilation sub-holes are arranged in an array on the second side plate.

[0011] Optionally, the first ventilation hole comprises a plurality of first ventilation sub-holes, the plurality of first ventilation sub-holes are of the same shape, or the plurality of first ventilation sub-holes are of similar shapes.

[0012] Optionally, the second ventilation hole comprises a plurality of hole regions arranged in sequence on the first side plate (32) and / or the third side plate, each hole region comprises a plurality of second ventilation sub-holes, the second ventilation sub-holes close to the center of the hole region are larger in area than the second ventilation sub-holes close to the edge of the hole region, or the plurality of second ventilation sub-holes are of the same area.

[0013] Optionally, the plurality of second ventilation sub-holes are arranged in an array on the first side plate and / or the third side plate.

[0014] Optionally, the drawer comprises a plurality of second ventilation sub-holes, the plurality of second ventilation sub-holes are of the same shape, or the plurality of second ventilation sub-holes are of similar shapes.

[0015] Optionally, the normal projection of the air inlet or the air outlet along the fan axis is entirely located within the first ventilation hole.

[0016] Optionally, the shell comprises: a liner, the liner having a first accommodation cavity, the drawer being movably arranged in the first accommodation cavity.

[0017] Optionally, the drawer is arranged in a spaced manner with the fan, and the fan is located outside the drawer.

[0018] Optionally, the vehicle-mounted refrigerator further comprises a refrigeration member, the refrigeration member being configured to cool the air in the first accommodation cavity.

[0019] Optionally, the vehicle-mounted refrigerator further comprises a heating member, the heating member being configured to heat the air in the first accommodation cavity.

[0020] Optionally, the refrigeration member comprises an evaporator, the evaporator being arranged on the side of the liner away from the drawer.

[0021] Optionally, the heating member comprises a heating film, the heating film being attached to the outer periphery of the evaporator.

[0022] According to a second aspect of the present application, a vehicle-mounted system is provided, comprising the above vehicle-mounted refrigerator.

[0023] According to a third aspect of the present application, a vehicle is further provided, comprising the above vehicle-mounted system.

[0024] The vehicle-mounted refrigerator provided in the embodiment of the present application comprises: a shell having a first accommodating cavity; a flow guide member arranged in the first accommodating cavity, the flow guide member comprising a plurality of rotatable fan blades; and a drawer movably arranged in the first accommodating cavity, the drawer being provided with a first ventilation hole corresponding to the flow guide member, wherein the area of the first ventilation hole is greater than the total area of the fan blades. Through the above technical solution, the air circulation inside the shell is optimized, and when the vehicle-mounted refrigerator is started to cool or heat, the air flow caused by the fan blowing will make the cold air or hot air in the first accommodating cavity flow and circulate quickly, part of the air will pass through the first ventilation hole, and part of the air will flow to the inside of the drawer through the gap between the drawer and the first accommodating cavity, and the air inside the drawer will enter along the air inlet of the fan, thereby accelerating the rapid flow of the cold air or hot air in the first accommodating cavity, so as to realize the rapid cooling or heating of the vehicle-mounted refrigerator, improve the cooling and heating performance and efficiency of the vehicle-mounted refrigerator, and provide passengers with a good use experience.

[0025] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0028] Figure 1 is a schematic view of the overall structure of the vehicle-mounted refrigerator provided in the exemplary embodiment of the present application;

[0029] Figure 2 is a schematic view of the internal cross-sectional view of the vehicle-mounted refrigerator provided in the exemplary embodiment of the present application;

[0030] Figure 3 is a schematic view of the structure of the drawer opened in the vehicle-mounted refrigerator provided in the exemplary embodiment of the present application;

[0031] Figure 4 is a schematic view of the overall structure of the drawer provided in the exemplary first embodiment of the present application;

[0032] Figure 5 is a schematic view of the side structure of the drawer provided in the exemplary first embodiment of the present application;

[0033] Figure 6is a schematic view of a front structure of a drawer provided in an exemplary first embodiment of the present disclosure;

[0034] Figure 7 is a schematic view of an overall structure of a drawer provided in an exemplary second embodiment of the present disclosure;

[0035] Figure 8 is a schematic view of a side structure of a drawer provided in an exemplary second embodiment of the present disclosure;

[0036] Figure 9 is a schematic view of a front structure of a drawer provided in an exemplary second embodiment of the present disclosure;

[0037] Figure 10 is a schematic view of an overall structure of a drawer provided in an exemplary third embodiment of the present disclosure;

[0038] Figure 11 is a schematic view of a side structure of a drawer provided in an exemplary third embodiment of the present disclosure;

[0039] Figure 12 is a schematic view of a front structure of a drawer provided in an exemplary third embodiment of the present disclosure,

[0040] Explanation of Reference Signs:

[0041] Vehicle-mounted refrigerator 1, housing 10, first accommodating cavity 11, fan 20, air inlet 201, air outlet 202, fan blade 21, drawer 30, first ventilation hole 31, first ventilation sub-hole 311, first side plate 32, second side plate 33, third side plate 34, second ventilation hole 35, hole area A, second ventilation sub-hole 351, inner container 40, refrigeration part 50, heating part 60. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the protection scope of the present application.

[0043] As Figures 1 to 12As shown, according to the first aspect of the present application, a vehicle-mounted refrigerator 1 is provided, comprising: a shell 10 having a first accommodating cavity 11; a fan 20 having an air inlet 201 and an air outlet 202; a drawer 30 movably arranged in the first accommodating cavity 11, the drawer 30 being provided with a first ventilation hole 31; wherein the first ventilation hole 31 is arranged corresponding to the air inlet 201, and the area of the first ventilation hole 31 is greater than the area of the air inlet 201, or the first ventilation hole 31 is arranged corresponding to the air outlet 202, and the area of the first ventilation hole 31 is greater than the area of the air outlet 202.

[0044] In the present application, since the first ventilation hole 31 comprises a plurality of first sub-ventilation holes 311, the area of the above-mentioned first ventilation hole 31 greater than the area of the air inlet 201 refers to the area enclosed by the outermost first sub-ventilation hole 311.

[0045] Through the above technical solution, the air circulation inside the shell 10 is optimized, and the first ventilation hole 31 is arranged corresponding to the fan 20. When the vehicle-mounted refrigerator 1 is started to cool or heat, the air blown by the fan will drive the cold air or hot air in the first accommodating cavity 11 to flow and circulate quickly, part of the air will pass through the first ventilation hole 31, and part of the air will flow to the inside of the drawer 30 through the gap between the drawer 30 and the first accommodating cavity 11, and the air inside the drawer 30 will enter along the air inlet 201 of the fan, thereby accelerating the rapid flow of the cold air or hot air in the first accommodating cavity 11, so as to realize the rapid cooling or heating of the vehicle-mounted refrigerator 1, improve the cooling and heating performance and efficiency of the vehicle-mounted refrigerator 1, and provide passengers with a good use experience.

[0046] Further, the fan can be arranged inside or outside the drawer 30, and the specific arrangement should be selected according to the use environment of the device, so as to improve the applicability and application range of the device.

[0047] Optionally, the drawer 30 comprises a first side plate 32, a second side plate 33 and a third side plate 34 connected in sequence and arranged at an angle, the first side plate 32 and the third side plate 34 are located on the same side of the second side plate 33, the second side plate 33 is arranged opposite to the fan 20, and the first ventilation hole 31 is arranged on the second side plate 33. In this way, the first ventilation hole 31 can be as close to the fan 20 as possible, thereby facilitating the acceleration of the air flow rate in the drawer 30, so as to further improve the cooling and heating performance and efficiency of the vehicle-mounted refrigerator 1, and meet the use requirements of users.

[0048] Optionally, the first side plate 32 and / or the third side plate 34 is provided with a second ventilation hole 35, and the second ventilation hole 35 communicates with the first accommodating cavity 11. By arranging the second ventilation hole 35, the air inside the drawer 30 and the air outside can circulate, thereby further accelerating the cooling and heating performance and efficiency of the drawer 30.

[0049] Optionally, the first ventilation hole 31 and / or the second ventilation hole 35 include at least one of a polygonal hole, a circular hole, and an oblong hole. This configuration can be adjusted according to actual usage, thereby improving the applicability and scope of application of the drawer 30, ensuring the drawer 30's aesthetic appearance while also improving its applicability.

[0050] Of course, the first ventilation hole 31 and / or the second ventilation hole 35 can also be set to a triangular or trapezoidal structure, as long as it can meet the use requirements of the device.

[0051] like Figure 9 and Figure 12 As shown, further, the first ventilation hole 31 includes a plurality of first ventilation sub-holes 311, the area of ​​the first ventilation sub-hole 311 near the center of the second side panel 33 is smaller than the area of ​​the first ventilation sub-hole 311 near the edge of the second side panel 33, or the areas of the plurality of first ventilation sub-holes 311 are the same. Compared with a single or a small number of first ventilation holes 31, multiple first ventilation holes 31 can form a more uniform air flow path, allowing air to circulate more smoothly within the drawer 30. This design helps to reduce the resistance to air flow and improve the efficiency of air circulation. At the same time, the cross-sectional areas of the plurality of first ventilation holes 31 can be the same or different and can be set according to actual usage requirements, which can further improve the applicability and scope of application of the drawer 30.

[0052] Optionally, a plurality of first ventilation sub-holes 311 are arranged in an array on the second side plate 33. The above arrangement structure is simple and easy to process, which not only improves the processing efficiency of the structure, but also meets the use requirements of the device.

[0053] Furthermore, the first ventilation hole 31 includes a plurality of first ventilation sub-holes 311, and the plurality of first ventilation sub-holes 311 have the same shape, or the plurality of first ventilation sub-holes 311 have similar shapes. This simple structure not only facilitates the processing of the first ventilation holes 31, but also reduces the processing difficulty of the first ventilation holes 31, thereby improving the processing efficiency of the first ventilation holes 31 and facilitating the mass production of the drawers 30.

[0054] like Figure 8As shown, the second ventilation hole 35 includes a plurality of hole regions A arranged in sequence on the first side plate 32 and / or the third side plate 34, each of the plurality of hole regions A includes a plurality of second ventilation sub-holes 351, the area of the second ventilation sub-hole 351 close to the center of the hole region A is greater than the area of the second ventilation sub-hole 351 close to the edge of the hole region A, or the areas of the plurality of second ventilation sub-holes 351 are the same. The plurality of second ventilation holes 35 can more effectively promote the exchange of air between the inside and outside of the compartment. Compared with a single or small number of second ventilation holes 35, the plurality of second ventilation holes 35 can form a more uniform air flow path, so that the air can flow more smoothly in the drawer 30. This design helps to reduce the resistance of air flow and improve the efficiency of air circulation. At the same time, the cross-sectional areas of the plurality of second ventilation holes 35 can be set according to actual use requirements, so as to further improve the applicability and scope of the drawer 30.

[0055] Further, the plurality of second ventilation sub-holes 351 are arranged in an array on the first side plate 32 and / or the third side plate 34. The above arrangement structure is simple and easy to process, which not only improves the processing efficiency of the structure, but also meets the use requirements of the device.

[0056] Optionally, the drawer 30 includes a plurality of second ventilation sub-holes 351, and the shapes of the plurality of second ventilation sub-holes 351 are the same or similar. The above structure is simple, which not only facilitates the processing of the second ventilation hole 35, but also reduces the processing difficulty of the second ventilation hole 35, thereby improving the processing efficiency of the second ventilation hole 35 and facilitating the batch production of the drawer 30.

[0057] Further, the projection of the air inlet 201 or the air outlet 202 along the axis of the fan 20 is entirely located within the first ventilation hole 31. In this way, the air of the air inlet 201 or the air outlet 202 can enter the drawer as much as possible, so as to further improve the refrigeration and heating efficiency of the vehicle-mounted refrigerator.

[0058] Optionally, the shell 10 includes an inner container 40 having a first containing cavity 11, and the drawer 30 is movably arranged in the first containing cavity 11. The inner container 40 of the vehicle-mounted refrigerator 1 can effectively insulate heat, prevent external heat from entering the interior of the refrigerator or external cold air from entering the interior of the refrigerator, and also slow down the loss of heat or cold in the interior of the refrigerator, so as to keep the temperature in the drawer 30 stable under certain temperature conditions and meet the use requirements of the user.

[0059] Further, the vehicle-mounted refrigerator 1 further includes a refrigeration component 50 for refrigerating the air in the first containing cavity 11. In this way, the refrigeration requirements of the user can be met, thereby improving the applicability of the vehicle-mounted refrigerator 1.

[0060] Optionally, the vehicle-mounted refrigerator 1 further comprises a heating member 60, which is configured to heat air in the first accommodating cavity 11. In this way, the heating demand of the user can be met, thereby improving the applicability of the vehicle-mounted refrigerator 1.

[0061] Optionally, the refrigerating member 50 comprises an evaporator, which is arranged on the side of the inner container 40 away from the drawer 30. In the present application, the evaporator can be arranged on the side wall of the inner container 40 close to the first side plate 32 or the third side plate 34, or can be arranged at other positions. The specific arrangement should be selected according to the use demand of the device, so as to improve the applicability and application range of the device. The working principle of the evaporator is to utilize the characteristics of the refrigerant vaporization under low pressure and low temperature, to absorb external heat energy, so that the internal working medium refrigerant is boiled and vaporized, so as to reduce the surface temperature of the evaporator and achieve the effect of refrigeration. Specifically, the refrigerant liquid enters the evaporator after being throttled and decompressed by a throttling valve (such as an expansion valve). Due to the reduction of pressure, the boiling point of the refrigerant liquid also decreases. At this time, the refrigerant liquid absorbs heat and evaporates in the evaporator, and is converted into a gaseous state. In this process, the refrigerant absorbs the heat of the surrounding medium, so that the temperature is lowered, thereby realizing refrigeration.

[0062] Optionally, the heating member 60 comprises a heating film, which is attached to the outer periphery of the evaporator. The heating film is a thin film form of heating element, mainly composed of electrically insulating material and heating resistance material encapsulated therein, which generates heat on the thin film through electric current to realize the heating function of the vehicle-mounted refrigerator 1. The above structure is simple, which not only can reduce the production cost of the device, but also can meet the heating demand of the user.

[0063] According to a second aspect of the present application, a vehicle-mounted system is provided, comprising the above vehicle-mounted refrigerator 1.

[0064] According to a third aspect of the present application, a vehicle is further provided, comprising the above vehicle-mounted system.

[0065] The vehicle-mounted refrigerator 1 of the embodiment of the present application comprises: a shell 10 having a first accommodating cavity 11; a fan 20 arranged in the first accommodating cavity 11, the fan 20 comprising a plurality of rotatable fan blades 21; and a drawer 30 movably arranged in the first accommodating cavity 11, the drawer 30 being provided with a first ventilation hole 31 corresponding to the fan 20. The area of the first ventilation hole 31 is greater than the total area of the fan blades 21. The above technical solution ensures the optimal air circulation in the shell 10. When the vehicle-mounted refrigerator 1 is started to cool or heat, the air flow caused by the fan blowing will circulate quickly in the first accommodating cavity 11, part of the air will pass through the first ventilation hole 31, and part of the air will flow to the inside of the drawer 30 through the gap between the drawer 30 and the first accommodating cavity 11, and then the air in the drawer 30 will enter the fan inlet. In this way, the quick flow of the cold air or hot air in the first accommodating cavity 11 is accelerated, so that the quick cooling or heating of the vehicle-mounted refrigerator 1 is realized, the cooling and heating performance and efficiency of the vehicle-mounted refrigerator 1 are improved, and the passengers have a good use experience.

[0066] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0067] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application, unless otherwise specifically stated. It will be further understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the sake of convenience. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be viewed as being part of the present application. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not limiting. Thus, other examples of example embodiments can have different values. It is noted that like numbers and letters refer to like items throughout the drawings, and once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0068] In the description of the present application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0069] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0070] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the distinction of corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0071] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A vehicle refrigerator (1), characterized in that: include: The housing (10) has a first accommodating cavity (11); A fan (20) having an air inlet (201) and an air outlet (202); a drawer (30) movably disposed in the first accommodating cavity (11), the drawer (30) being provided with a first ventilation hole (31); The first ventilation hole (31) is provided corresponding to the air inlet (201), and the area of ​​the first ventilation hole (31) is larger than the area of ​​the air inlet (201), or the first ventilation hole (31) is provided corresponding to the air outlet (202), and the area of ​​the first ventilation hole (31) is larger than the area of ​​the air outlet (202).

2. The vehicle refrigerator (1) according to claim 1, characterized in that: The drawer (30) comprises a first side panel (32), a second side panel (33) and a third side panel (34) which are connected in sequence and arranged at an angle, the first side panel (32) and the third side panel (34) are located on the same side of the second side panel (33), the second side panel (33) is arranged opposite to the fan (20), and the first ventilation hole (31) is arranged on the second side panel (33).

3. The vehicle refrigerator (1) according to claim 2, characterized in that: A second ventilation hole (35) is provided on the first side plate (32) and / or the third side plate (34), and the second ventilation hole (35) is communicated with the first accommodating cavity (11).

4. The vehicle refrigerator (1) according to claim 3, characterized in that: The first ventilation hole (31) and / or the second ventilation hole (35) include at least one of a polygonal hole, a circular hole, and a waist-shaped hole.

5. The vehicle refrigerator (1) according to claim 4, characterized in that: The first ventilation hole (31) comprises a plurality of first ventilation sub-holes (311), the area of ​​the first ventilation sub-hole (311) close to the center of the second side plate (33) is smaller than the area of ​​the first ventilation sub-hole (311) close to the edge of the second side plate (33), or the areas of the plurality of first ventilation sub-holes (311) are the same.

6. The vehicle refrigerator (1) according to claim 5, characterized in that: A plurality of the first ventilation sub-holes (311) are arranged in an array on the second side plate (33).

7. The vehicle refrigerator (1) according to claim 4, characterized in that: The first ventilation hole (31) comprises a plurality of first ventilation sub-holes (311), and the plurality of first ventilation sub-holes (311) have the same shape, or the plurality of first ventilation sub-holes (311) have similar shapes.

8. The vehicle refrigerator (1) according to claim 4, characterized in that: The second ventilation hole (35) includes a plurality of hole areas (A), and the plurality of hole areas (A) are sequentially arranged on the first side plate (32) and / or the third side plate (34), and each of the hole areas (A) includes a plurality of second ventilation sub-holes (351), and the area of ​​the second ventilation sub-hole (351) close to the center of the hole area (A) is larger than the area of ​​the second ventilation sub-hole (351) close to the edge of the hole area (A), or the areas of the plurality of second ventilation sub-holes (351) are the same.

9. The vehicle refrigerator (1) according to claim 8, characterized in that: A plurality of the second ventilation sub-holes (351) are arranged in an array on the first side plate (32) and / or the third side plate (34).

10. The vehicle refrigerator (1) according to claim 4, characterized in that: The drawer (30) comprises a plurality of second ventilation sub-holes (351), and the shapes of the plurality of second ventilation sub-holes (351) are the same, or the shapes of the plurality of second ventilation sub-holes (351) are similar.

11. The vehicle refrigerator (1) according to any one of claims 1 to 10, characterized in that: The orthographic projections of the air inlet (201) or the air outlet (202) along the axis of the fan (20) are all located within the first ventilation hole (31).

12. The vehicle refrigerator (1) according to any one of claims 1 to 10, characterized in that: The housing (10) comprises: An inner container (40), wherein the inner container (40) has the first accommodating cavity (11), and the drawer (30) is movably arranged in the first accommodating cavity (11).

13. The vehicle refrigerator (1) according to any one of claims 1 to 10, characterized in that: The drawer (30) and the fan (20) are spaced apart, and the fan (20) is located outside the drawer (30).

14. The vehicle refrigerator (1) according to any one of claims 1 to 10, characterized in that: The vehicle-mounted refrigerator (1) further comprises a refrigeration component (50), and the refrigeration component (50) is used to cool the first accommodating cavity (11).

15. The vehicle refrigerator (1) according to claim 14, characterized in that: The vehicle-mounted refrigerator (1) further comprises a heating element (60), and the heating element (60) is used to heat the first accommodating cavity (11).

16. The vehicle refrigerator (1) according to claim 12, characterized in that: The vehicle-mounted refrigerator (1) further includes a refrigeration component (50), the refrigeration component (50) including an evaporator, and the evaporator is arranged on a side of the inner container (40) facing away from the drawer (30).

17. The vehicle refrigerator (1) according to claim 16, characterized in that: The vehicle-mounted refrigerator (1) further comprises a heating element (60), wherein the heating element (60) comprises a heating film, and the heating film is attached to the outer periphery of the evaporator.

18. A vehicle-mounted system, characterized in that: The vehicle refrigerator (1) comprises the vehicle refrigerator (1) according to any one of claims 1 to 17.

19. A vehicle, characterized in that: Comprising the vehicle-mounted system as claimed in claim 18.

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