Integrated vehicle-mounted refrigerators and vehicles with stepped cold storage and release systems

Abstract

This invention discloses an integrated vehicle-mounted refrigerator and vehicle with a stepped cold storage and release system, belonging to the field of refrigeration equipment technology. The integrated vehicle-mounted refrigerator includes: a main body, a compressor, an evaporator, and at least two cold storage sections. A storage chamber is provided within the main body; the compressor is located outside the main body and is a shared compressor for both the integrated vehicle-mounted refrigerator and the vehicle's air conditioning system; the evaporator is located within the main body and connected to the compressor; the cold storage sections are located within the main body and are filled with a cold storage refrigerant; wherein, at least two cold storage sections are at unequal distances from the evaporator, and the phase change temperature of the cold storage refrigerant in the closer cold storage section is lower than that in the farther cold storage section. By setting up cold storage sections, the storage chamber can be cooled using these sections, effectively extending the low-temperature environment time of the storage chamber; furthermore, the cold storage refrigerant can achieve stepped cold release during refrigeration, which helps to extend the cooling time, fully utilize the cold energy, and improve the refrigeration effect.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to an integrated vehicle-mounted refrigerator and vehicle with a stepped cold storage and release system. Background Technology

[0002] Vehicle refrigerators rely on a limited amount of electricity supplied by the vehicle. Therefore, in related technologies, vehicle refrigerators rely solely on the evaporator to absorb heat and generate cold airflow to cool the storage cavity, resulting in high energy consumption. Furthermore, the evaporator has a short reliable operating time, and the storage cavity cannot maintain a low temperature for an extended period, leaving room for improvement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the objective of the present invention is to propose an integrated vehicle-mounted refrigerator with a stepped cold storage and release system. This integrated vehicle-mounted refrigerator can utilize a cold storage unit to store cold, and when the evaporator stops working, it uses the cold storage unit for cooling, effectively extending the low-temperature environment time of the integrated vehicle-mounted refrigerator's storage chamber.

[0004] Another object of the present invention is to provide a vehicle with an integrated vehicle-mounted refrigerator having the above-mentioned stepped cold storage and release mechanism.

[0005] An integrated vehicle refrigerator with stepped cold storage and release according to a first aspect of the present invention includes: a main body, wherein a storage cavity is provided within the main body; a compressor located outside the main body, wherein the compressor is a shared compressor for the integrated vehicle refrigerator and a vehicle air conditioner; an evaporator disposed within the main body; and at least two cold storage sections disposed within the main body, wherein the cold storage sections are filled with a cold storage refrigerant; wherein the at least two cold storage sections are at unequal distances from the evaporator, and the phase change temperature of the cold storage refrigerant in the closer cold storage section is lower than the phase change temperature of the cold storage refrigerant in the farther cold storage section; when the compressor is running and the storage cavity cools down, the cold storage section with the higher phase change temperature fills up with cold energy first, and the cold storage section with the lower phase change temperature fills up with cold energy later, thereby achieving stepped cold storage; when the compressor stops running and the storage cavity heats up, the cold storage section with the lower phase change temperature begins to release cold energy first, and the cold storage section with the higher phase change temperature begins to release cold energy later, thereby achieving stepped cold release.

[0006] According to an embodiment of the integrated vehicle refrigerator with stepped cold storage and release according to an embodiment of the present invention, a cold storage section filled with a cold storage refrigerant is provided. When the compressor is running, part of the cold energy generated by the evaporator cools the storage cavity, and the other part of the cold energy is stored in the cold storage refrigerant, which is then charged. When the compressor stops running, the cold storage section performs the cooling, and the cold storage refrigerant filled in the cold storage cavity releases the cold energy into the storage cavity. The cold storage refrigerant undergoes a phase change when releasing the cold energy, thereby enabling it to release the cold energy to the evaporator for a longer period of time, effectively extending the low-temperature environment time of the storage cavity of the integrated vehicle refrigerator with stepped cold storage and release. Furthermore, the phase change temperature of the cold storage refrigerant filled in the cold storage section closer to the evaporator is lower than that of the cold storage refrigerant filled in the cold storage section farther from the evaporator. This allows multiple cold storage sections to fully store cold energy, reducing compressor power consumption and fully utilizing the cold energy of the evaporator; and the stepped cold release during cooling by the cold storage refrigerant helps to extend the cooling time, fully utilize the cold energy, and improve the cooling effect.

[0007] In some embodiments, the main body includes: a housing with the storage cavity inside, and an opening formed on one side of the housing; a cover that is closable at the opening; an evaporator disposed on the housing; and a cold storage section including: a first cold storage section and a second cold storage section, the first cold storage section being disposed on the housing and adjacent to the evaporator, and the second cold storage section being disposed on the cover; the phase change temperature of the cold storage agent in the first cold storage section is lower than the phase change temperature of the cold storage agent in the second cold storage section.

[0008] Furthermore, the first cold storage unit includes: a first cold storage box, which is filled with the cold storage agent, and a cold-guiding hole is provided on the box wall of the first cold storage box facing the evaporator; a sealing sheet, which is sealed to the cold-guiding hole, and the thermal conductivity of the sealing sheet is greater than that of the first cold storage box.

[0009] Optionally, the stepped cold storage and release integrated vehicle refrigerator further includes: a heating film disposed between the first cold storage unit and the evaporator, the heating film having clearance holes; the first cold storage unit having a cold guiding hole on the side facing the evaporator, the clearance holes on the heating film corresponding to the cold guiding holes one by one.

[0010] In some embodiments, the evaporator is arranged around the storage cavity; there are multiple first cold storage units, and the multiple first cold storage units are arranged sequentially around the evaporator.

[0011] Optionally, the storage cavity is rectangular, and the evaporator is square; there are four first cold storage sections, each of which is plate-shaped and located on the four outer sides of the evaporator; two of the first cold storage sections have curved ends to connect to the other two first cold storage sections.

[0012] In some embodiments, the housing includes: an outer shell, an inner liner, and a first insulation layer; the inner liner is disposed within the outer shell, forming the storage cavity within the inner liner; the inner liner is open on the same side as the outer shell to form the opening; the first insulation layer is disposed between the outer shell and the inner liner; the evaporator is disposed between the first insulation layer and the inner liner; and the first cold storage unit is disposed between the first insulation layer and the evaporator; the cover includes: an outer cover plate, an inner cover plate, and a second insulation layer; the inner cover plate is connected to the side of the outer cover plate facing the storage cavity; the second insulation layer is located between the inner cover plate and the outer cover plate; and the second cold storage unit is located between the inner cover plate and the second insulation layer.

[0013] Furthermore, the main body also includes a drawer connected to the cover, the drawer being removable within the storage cavity; the cold storage section further includes a third cold storage section, the third cold storage section being located at the bottom of the drawer.

[0014] In some embodiments, the integrated vehicle refrigerator with stepped cold storage and release further includes: a fan module disposed in the main body to drive airflow within the storage cavity; the fan module operates when the compressor is running to drive the evaporator to rapidly exchange heat with the air in the storage cavity; and the fan module continues to operate when the compressor stops running to drive the cold storage unit to rapidly dissipate cold to the air in the storage cavity.

[0015] Furthermore, the inner side of the main body is provided with an installation groove; the fan module includes: a fan box, which is assembled in the installation groove, and the fan box is provided with an air intake and an air outlet, and communicates with the storage cavity; a fan, which is installed in the fan box and is positioned facing the air intake or the air outlet.

[0016] According to a second aspect of the present invention, a vehicle includes an integrated vehicle-mounted refrigerator with a stepped cold storage and release mechanism according to a first aspect of the present invention.

[0017] According to embodiments of the present invention, by providing the aforementioned stepped cold storage and release integrated vehicle refrigerator, the comfort of vehicle use can be improved.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is an exploded view of the structure of an integrated vehicle-mounted refrigerator with stepped cold storage and release in some embodiments of the present invention; Figure 2 This is a cross-sectional view of an integrated vehicle refrigerator in some embodiments of the present invention; Figure 3 This is another cross-sectional view of the integrated vehicle refrigerator in some embodiments of the present invention; Figure 4 This is an exploded view of the evaporator and the first cold storage unit in some embodiments of the present invention; Figure 5 This is a schematic diagram of the structure of an integrated vehicle refrigerator in some embodiments of the present invention; Figure 6 This is another structural schematic diagram of an integrated vehicle refrigerator in some embodiments of the present invention.

[0020] Figure label: 1000 Integrated Vehicle Refrigerator with Stepped Cold Storage and Release Body 100, storage cavity V1, mounting groove 103, Box body 110, box opening 111, outer shell 112, inner liner 113, first insulation layer 114 Cover 130, outer cover plate 131, inner cover plate 132, second insulation layer 133. Drawer 150 Evaporator 220 Cold storage section 250 First cold storage unit 251, first cold storage box 2511, cold guide hole 25111, sealing plate 2512 Second cold storage unit 252 Third cold storage unit 253 Expansion valve 281, shut-off valve 282 Fan module 300, fan box 310, air intake 311, air outlet 312, fan 320. Heating film 410, clearance hole 411. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following description, with reference to the accompanying drawings, describes an integrated vehicle refrigerator 1000 with a stepped cold storage and release mechanism according to a first aspect of the present invention.

[0025] According to an embodiment of the present invention, an integrated vehicle refrigerator 1000 with a stepped cold storage and release mechanism is provided, such as... Figure 1 and Figure 2 As shown, the integrated vehicle refrigerator 1000 with stepped cold storage and release includes: a main body 100, an evaporator 220, a compressor, and at least two cold storage sections 250. The main body 100 has a storage cavity V1. The compressor is located outside the main body 100 and is a shared compressor between the integrated vehicle refrigerator 1000 and the vehicle's air conditioning system. The evaporator 220 is located inside the main body 100 and connected to the compressor. The cold storage sections 250 are located inside the main body 100 and are filled with a cold storage refrigerant. At least two of the cold storage sections 250 are connected to the evaporator... The refrigerant in the cold storage section 250, which is closer to the compressor, has a lower phase change temperature than the refrigerant in the cold storage section 250, which is farther away. When the compressor is running and the storage chamber V1 is cooling down, the cold storage section 250 with the higher phase change temperature fills up with cold energy first, and the cold storage section 250 with the lower phase change temperature fills up with cold energy later, so as to achieve stepped cold storage. When the compressor stops running and the storage chamber V1 is heating up, the cold storage section 250 with the lower phase change temperature starts to release cold energy first, and the cold storage section 250 with the higher phase change temperature starts to release cold energy later, so as to achieve stepped cold release.

[0026] The main body 100 serves as the frame of an integrated vehicle refrigerator 1000 with a stepped cold storage and release system. Both the evaporator 220 and the cold storage unit 250 are housed within the main body 100. The compressor is located outside the main body 100 and is connected to the evaporator 220. The compressor pressurizes the refrigerant and drives it towards the evaporator 220. After depressurization and heat release, the refrigerant flows into the evaporator 220, where it vaporizes and absorbs heat, thus enabling the evaporator 220 to cool the airflow. The main body 100 contains a storage chamber V1, and the evaporator 220 provides cooling energy, maintaining a low temperature within the storage chamber V1. Items requiring low-temperature storage, such as food and medicine, can be stored in the storage chamber V1 for long-term preservation; alternatively, food placed in the storage chamber V1 can be rapidly cooled to improve its taste.

[0027] It is understood that the integrated vehicle refrigerator 1000 with stepped cold storage and release in this embodiment of the invention is used in a vehicle, and the evaporator 220 can share a compressor with the vehicle's air conditioning system. The vehicle needs to supply power to the compressor, but the amount of electricity available in the vehicle to power the compressor is limited. Therefore, in related technologies, the vehicle refrigerator's reliance on the evaporator to absorb heat and generate cold airflow to cool the storage chamber V1 results in high energy consumption, a short reliable operating time for the evaporator, and the inability of the storage chamber V1 to maintain a low temperature for extended periods, indicating room for improvement.

[0028] Therefore, the integrated vehicle refrigerator 1000 with stepped cold storage and release in this embodiment of the invention is provided with a cold storage section 250, which is filled with a cold storage refrigerant. When the evaporator 220 is working, part of the cooling energy generated by the evaporator 220 cools the storage cavity V1, and the other part is stored in the cold storage refrigerant, which is then cooled. When the vehicle's power is cut off and no longer supplies power to the refrigerant circulation component where the evaporator 220 is located, the cold storage section 250 performs the cooling, and the cold storage refrigerant filling the cold storage cavity releases its cooling energy into the storage cavity V1. The cold storage refrigerant undergoes a phase change when cooled by the evaporator 220, enabling it to store a large amount of cooling energy; similarly, a phase change occurs when the cold storage refrigerant releases its cooling energy, allowing it to release cooling energy to the evaporator 220 for a longer period, effectively extending the low-temperature environment time of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release.

[0029] By setting up multiple cold storage units 250, the amount of cold stored in the cold storage units 250 can be increased, which helps to extend the cooling time and improve the low-temperature environment time of the storage chamber V1.

[0030] Furthermore, it is understandable that during refrigeration, the temperature within the integrated vehicle refrigerator 1000 is uneven, with areas closer to the evaporator 220 having lower temperatures and areas relatively farther away from the evaporator 220 having higher temperatures. Therefore, the ambient temperature of the cold storage unit 250 located in different positions varies, and the amount of cold energy that the cold storage unit 250 can store differs.

[0031] Therefore, in this embodiment of the invention, the phase change temperature of the refrigerant filled in the cold storage section 250 closer to the evaporator 220 is lower than the phase change temperature of the refrigerant filled in the cold storage section 250 farther from the evaporator 220. When the compressor connected to the evaporator 220 operates at a predetermined power, the multiple cold storage sections 250 can be fully cooled, causing the refrigerant in all sections 250 to undergo a phase change. Compared to a design where all cold storage sections are filled with refrigerant at the same phase change temperature, this reduces the likelihood of the refrigerant in the cold storage section 250 closer to the evaporator 220 undergoing a phase change while the refrigerant in the section farther from the evaporator 220 has not yet undergone a phase change. This reduces compressor power consumption and fully utilizes the cooling capacity of the evaporator 220.

[0032] Furthermore, when the refrigerant releases heat, the refrigerant storage section 250 with a lower phase change temperature releases heat first, followed by the refrigerant storage section 250 with a higher phase change temperature, thus achieving a stepped heat release. This helps to extend the cooling time, fully utilize the cooling capacity, and improve the cooling effect.

[0033] According to an embodiment of the integrated vehicle refrigerator 1000 with stepped cold storage and release according to an embodiment of the present invention, a cold storage section 250 filled with a cold storage refrigerant is provided. When the compressor is working, part of the cold energy generated by the evaporator 220 cools the storage cavity V1, and the other part of the cold energy is stored in the cold storage refrigerant, which is then charged. When the compressor stops running, the cold storage section 250 performs the cooling, and the cold storage refrigerant filled in the cold storage section releases the cold energy into the storage cavity V1. The cold storage refrigerant undergoes a phase change when releasing the cold energy, thereby enabling it to release cold energy to the evaporator 220 for a longer period of time, effectively extending the low-temperature environment time of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release. Furthermore, the phase change temperature of the cold storage refrigerant filled in the cold storage section 250 closer to the evaporator 220 is lower than the phase change temperature of the cold storage refrigerant filled in the cold storage section 250 farther from the evaporator 220. This allows multiple cold storage sections 250 to fully store cold, reducing compressor power consumption and making full use of the cooling capacity of the evaporator 220; furthermore, the cold storage refrigerant can achieve step-by-step cold release when refrigerating, which helps to extend the cooling time, fully utilize the cooling capacity, and improve the cooling effect.

[0034] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the main body 100 includes: a box body 110 and a cover body 130. The box body 110 is provided with a storage cavity V1. A box opening 111 is formed on one side of the box body 110. The cover body 130 is detachably fitted at the box opening 111. An evaporator 220 is provided on the box body 110.

[0035] The main body 100 includes a housing 110, which is constructed as the outer contour of the main body 100. A storage cavity V1 is provided inside the housing 110, and an evaporator 220 is disposed inside the housing 110. The housing 110 can support and protect the internal evaporator 220. A box opening 111 is formed on one side of the housing 110, and a cover 130 is closable and fits into the box opening 111 to open or close the box opening 111, thereby opening or closing the storage cavity V1.

[0036] like Figure 3 As shown, the cold storage unit 250 includes: a first cold storage unit 251 and a second cold storage unit 252. The first cold storage unit 251 is disposed on the housing 110 and adjacent to the evaporator 220, and the second cold storage unit 252 is disposed on the cover 130. The phase change temperature of the cold storage agent in the first cold storage unit 251 is lower than the phase change temperature of the cold storage agent in the second cold storage unit 252.

[0037] The cold storage unit 250 includes a first cold storage unit 251 and a second cold storage unit 252. The first cold storage unit 251 is disposed on the housing 110. When refrigerating, the first cold storage unit 251 can cool the surrounding space of the storage cavity V1 to reduce the temperature inside the storage cavity V1. The second cold storage unit 252 is disposed on the cover 130 and can better isolate the external environment from the storage cavity V1, thereby effectively maintaining the low temperature environment of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release.

[0038] The first cold storage section 251 is located closer to the evaporator 220 than the second cold storage section 252. The phase change temperature of the refrigerant filled in the first cold storage section 251 is lower than that of the refrigerant filled in the second cold storage section 252. When the compressor connected to the evaporator 220 operates at a predetermined power, the first and second cold storage sections 251 and 252 can fully store cold energy, which reduces the power consumption requirement of the compressor and makes full use of the cooling capacity of the evaporator 220. When refrigeration is performed through the first and second cold storage sections 251 and 252, the second cold storage section 252 first undergoes phase change for refrigeration, followed by the first cold storage section 251, achieving a stepped cooling release, which helps to extend the cooling time and improve the cooling effect.

[0039] In some specific embodiments of the present invention, the phase change temperature of the refrigerant in the first cold storage section 251 is -6°C, and the phase change temperature of the refrigerant in the second cold storage section 252 is -3°C.

[0040] In some further embodiments of the present invention, the phase change temperature of the refrigerant in the first cold storage section 251 is -10°C, and the phase change temperature of the refrigerant in the second cold storage section 252 is -6°C.

[0041] In some embodiments of the present invention, such as Figure 4As shown, the first cold storage unit 251 includes a first cold storage box 2511 and a sealing sheet 2512. The first cold storage box 2511 has a cold guiding hole 25111 on its box wall facing the evaporator 220. The sealing sheet 2512 is sealed and connected to the cold guiding hole 25111. The thermal conductivity of the sealing sheet 2512 is greater than that of the first cold storage box 2511.

[0042] The first cold storage box 2511 is filled with cold storage agent. The first cold storage box 2511 is the main functional component of the first cold storage unit 251. It stores cold when the evaporator 220 is cooling and releases cold when the evaporator 220 stops working.

[0043] The first cold storage box 2511 absorbs heat through heat conduction with the evaporator 220 via its box wall. By providing a cold-conducting hole 25111 on the box wall of the first cold storage box 2511 facing the evaporator 220, and sealing the sealing plate 2512 with a thermal conductivity greater than that of the first cold storage box 2511 at the cold-conducting hole 2511, the heat transfer rate between the evaporator 220 and the first cold storage box 2511 can be improved.

[0044] Compared to directly using a material with high thermal conductivity to set the box wall of the first cold storage box 2511, opening cold conduction holes 25111 on the box wall of the first cold storage box 2511 and sealing it with sealing sheet 2512 reduces the amount of material used to manufacture the sealing sheet 2512, which helps to save manufacturing costs.

[0045] In other embodiments of the present invention, the thermal conductivity of the wall of the first cold storage box 2511 facing the evaporator 220 is greater than that of the other walls of the first cold storage box 2511. This is beneficial for improving the heat transfer rate between the evaporator 220 and the first cold storage box 2511, and can save manufacturing costs compared to using a material with high thermal conductivity to manufacture all the walls of the first cold storage box 2511.

[0046] In some embodiments of the present invention, such as Figure 4 As shown, the integrated vehicle refrigerator 1000 also includes a heating film 410 disposed between the first cold storage section 251 and the evaporator 220.

[0047] A heating film 410 is provided between the first cold storage unit 251 and the evaporator 220. The heating film 410 generates heat when energized. By providing the heating film 410, the frost layer between the evaporator 220 and the first cold storage unit 251 can be melted periodically, thereby maintaining efficient heat transfer between the first cold storage unit 251 and the evaporator 220.

[0048] In some embodiments of the present invention, such as Figure 4 As shown, the heating film 410 is provided with a clearance hole 411.

[0049] The heating film 410 is used for defrosting and can maintain efficient heat transfer between the first cold storage unit 251 and the evaporator 220. However, the placement of the heating film 410 between the first cold storage unit 251 and the evaporator 220 can also affect the heat transfer between them. Therefore, in some embodiments of the present invention, clearance holes 411 are provided on the heating film 410. The evaporator 220 and the first cold storage unit 251 can quickly transfer heat through the clearance holes 411, thereby reducing the impact on the heat transfer between them.

[0050] In some embodiments of the present invention, such as Figure 4 As shown, when the first cold storage unit 251 is provided with a cold guiding hole 25111 on the side facing the evaporator 220, the clearance hole 411 on the heating film 410 is provided in a one-to-one correspondence with the cold guiding hole 25111.

[0051] The first cold storage unit 251 has a cold guide hole 25111 on the side facing the evaporator 220. The cold storage agent in the first cold storage unit 251 can efficiently transfer heat to the evaporator 220 through the cold guide hole 25111. The clearance hole 411 on the heating film 410 is set one-to-one with the cold guide hole 25111, which can further improve the heat exchange rate between the evaporator 220 and the first cold storage unit 251.

[0052] In some embodiments of the present invention, such as Figure 4 As shown, the first cold storage unit 251 includes a first cold storage box 2511 and a sealing sheet 2512. The first cold storage box 2511 has a cold guiding hole 25111 on its box wall facing the evaporator 220. The sealing sheet 2512 is sealed and connected to the cold guiding hole 25111. The thermal conductivity of the sealing sheet 2512 is greater than that of the first cold storage box 2511.

[0053] A heating film 410 is provided between the first cold storage section 251 and the evaporator 220. A clearance hole 411 is provided on the heating film 410. The clearance hole 411 is provided in a one-to-one correspondence with the cold conduction hole 25111, that is, the clearance hole 411 is provided in a one-to-one correspondence with the sealing sheet 2512.

[0054] In this way, by periodically heating the heating film 410, the frost layer between the evaporator 220 and the first cold storage section 251 can be melted, thereby maintaining efficient heat transfer between the first cold storage section 251 and the evaporator 220. Furthermore, by providing the clearance hole 411 to prevent heat transfer between the evaporator 220 and the seal, the heat transfer rate is improved. Even with the heating film 410 between the first cold storage section 251 and the evaporator 221, the heat exchange rate of the refrigerant within the first cold storage section 251 can still be increased.

[0055] In some embodiments of the present invention, such as Figure 2 and Figure 4As shown, the evaporator 220 is arranged around the storage chamber V1.

[0056] The evaporator 220 cools the storage cavity V1 through heat conduction and heat radiation. The evaporator 220 is arranged around the storage cavity V1 and can cool the storage cavity V1 from multiple directions, thereby improving the cooling efficiency and the temperature uniformity of the storage cavity V1.

[0057] like Figure 4 As shown, there are multiple first cold storage units 251, which are arranged sequentially around the evaporator 220. By setting multiple first cold storage units 251, the cold capacity stored in the first cold storage units 251 can be increased, which is beneficial to extending the cooling time and improving the low-temperature environment time of the storage chamber V1; and the sequential arrangement of the first cold storage units 251 around the evaporator 220 can improve the heat transfer efficiency between the evaporator 220 and the first cold storage units 251.

[0058] It is worth noting that the first cold storage section 251 is arranged around the evaporator 220 in a general sense. The first cold storage section 251 can be formed as a ring with the ends connected; or the first cold storage section 251 can be a semi-ring connected to the heat exchange evaporator 220 in sequence, which is also within the protection scope of the present invention.

[0059] In some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the storage cavity V1 is rectangular, and the evaporator 220 is square. The storage cavity V1 is rectangular, and the evaporator 220 is square and arranged around the storage cavity V1. The four sides of the evaporator 220 connected to the storage cavity V1 face each other to increase the contact area between the evaporator 220 and the storage cavity V1. The evaporator 220 can cool the storage cavity V1 from multiple directions, which is beneficial to improve the cooling speed of the evaporator 220 on the storage cavity V1 and improve the temperature uniformity of the storage cavity V1.

[0060] For example, such as Figure 4 As shown, the storage cavity V1 is rectangular, and the front side of the storage cavity V1 has an opening 111 that can be opened and closed. The evaporator 220 is square and surrounds the upper, left, lower and right sides of the storage cavity V1. The evaporator 220 avoids the opening 111 and can cool the storage cavity V1 from multiple directions.

[0061] like Figure 4 As shown, there are four first cold storage units 251, each of which is plate-shaped and located on the four outer sides of the evaporator 220; two of the first cold storage units 251 have curved ends to connect to the other two first cold storage units 251.

[0062] The first cold storage unit 251 is located outside the evaporator 220, further away from the storage cavity V1 than the evaporator 220. The location of the first cold storage unit 251 does not affect the cooling of the storage cavity V1 by the evaporator 220. The first cold storage unit 251 can absorb the cold energy dissipated by the evaporator 220, thereby reducing the energy consumption of the refrigerant system connected to the evaporator 220.

[0063] There are four first cold storage units 251. The four first cold storage units 251 are plate-shaped and are connected and arranged around the evaporator 220 in sequence. The first cold storage units 251 are arranged in a one-to-one correspondence with the four square surfaces of the evaporator 220, which can improve the heat transfer efficiency between the evaporator 220 and the first cold storage units 251. All the first cold storage units 251 can store cold.

[0064] Furthermore, the first cold storage unit 251 is arranged around the evaporator 220, which is equivalent to surrounding the evaporator 220 on the outside of the storage cavity V1, and the first cold storage unit 251 surrounding the evaporator 220 on the outside of the evaporator 220. When the first cold storage unit 251 cools the storage cavity V1, it can cool the storage cavity V1 from multiple directions, which helps to improve the cooling speed of the storage cavity V1 and improve the temperature uniformity of the storage cavity V1. like Figure 4 As shown, the four first cold storage sections 251 are plate-shaped, with two of them having curved ends to connect to the other two. The two first cold storage sections 251 with curved ends are designed opposite each other, so that the four first cold storage sections 251 can be connected into a ring around the evaporator 220. This helps to improve the structural stability of the multiple first cold storage sections 251, and the contact between the first cold storage sections 251 and the evaporator 220 is higher, which can make full use of the cooling capacity of the evaporator 220.

[0065] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the housing 110 includes: an outer shell 112, an inner liner 113, and a first insulation layer 114. The inner liner 113 is disposed inside the outer shell 112, forming a storage cavity V1. The inner liner 113 and the outer shell 112 are open on the same side to form a housing opening 111. The first insulation layer 114 is disposed between the outer shell 112 and the inner liner 113. An evaporator 220 is disposed between the first insulation layer 114 and the inner liner 113, and a first cold storage unit 251 is disposed between the first insulation layer 114 and the evaporator 220.

[0066] The outer shell 112 is the outer contour of the box 110, which can provide support and protection. The inner liner 113 is disposed inside the outer shell 112, and a storage cavity is formed inside the inner liner 113. The inner liner 113 and the outer shell 112 are open on the same side to form a box opening 111. The cover 130 is closable and fits into the box opening 111 to open or close the box opening 111, thereby opening or closing the storage cavity V1.

[0067] The first insulation layer 114 is sandwiched between the outer shell 112 and the inner liner 113, which can keep the storage cavity V1 warm, reduce the outward dissipation of cold energy in the storage cavity V1, effectively prolong the low temperature environment time of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release, and also reduce the discomfort caused by low temperature when in contact with the cabinet 110.

[0068] The evaporator 220 is disposed between the first insulation layer 114 and the inner liner 113. The first insulation layer 114 covers the outside of the evaporator 220, which can reduce the outward dissipation of cold energy from the evaporator 220. The first cold storage section 251 is disposed between the first insulation layer 114 and the evaporator 220. The first cold storage section 251 is disposed on the outside of the evaporator 220. The first insulation layer 114 covers the outside of the first cold storage section 251, which can reduce the outward dissipation of cold energy from the first cold storage section 251 and the evaporator 220, effectively extending the low-temperature environment time of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release.

[0069] like Figure 1 As shown, the cover 130 includes: an outer cover plate 131, an inner cover plate 132, and a second insulation layer 133. The inner cover plate 132 is connected to the side of the outer cover plate 131 facing the storage cavity V1. The second insulation layer 133 is located between the inner cover plate 132 and the outer cover plate 131. The second cold storage section 252 is located between the inner cover plate 132 and the second insulation layer 133.

[0070] The cover 130 is closable and fits onto the opening 111 to open or close the opening 111, thereby opening or closing the storage cavity V1. The cover 130 includes an outer cover plate 131, an inner cover plate 132, and a second insulation layer 133. The outer cover plate 131 provides support and protection. The inner liner 113 is located on the side of the outer cover plate 131 near the storage cavity. The inner cover plate 132 and the outer cover plate 131 can stably sandwich the second insulation layer 133 and the second cold storage section 252, improving structural stability.

[0071] The second insulation layer 133 is sandwiched between the outer cover plate 131 and the inner cover plate 132, thereby providing insulation for the storage cavity V1, reducing the outward dissipation of cold energy from the storage cavity V1, effectively extending the low-temperature environment time of the storage cavity V1 of the integrated vehicle refrigerator 1000 with stepped cold storage and release, and also reducing the discomfort caused by low temperature when in contact with the cover 130.

[0072] The second cold storage section 252 is disposed between the inner cover plate 132 and the second insulation layer 133. The second insulation layer 133 covers the side of the second cold storage section 252 away from the storage cavity V1, which can reduce the outward dissipation of cold energy from the second cold storage section 252.

[0073] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the main body 100 also includes a drawer 150 connected to the cover 130, and the drawer 150 is slidably disposed in the storage cavity V1; the cold storage unit 250 also includes a third cold storage unit 253250, which is disposed at the bottom of the drawer 150.

[0074] The drawer 150 is connected to the cover 130 and can be pulled out into the storage cavity V1. Food and other items can be placed in the drawer 150 for low-temperature storage in the storage cavity V1. By connecting the drawer 150 to the cover 130, the drawer 150 can be pulled out directly when the cover 130 is opened, and the drawer 150 can be put back into the storage cavity V1 directly when the cover 130 is closed, making it convenient to use.

[0075] The third cold storage unit 253250 is located at the bottom of the drawer 150 and can directly cool the space inside the drawer 150, which can further reduce the temperature inside the storage cavity V1. Furthermore, the third cold storage unit 253250 can effectively utilize the space below the drawer 150, making the integrated vehicle refrigerator 1000 with stepped cold storage and release more rationally arranged. Without occupying the storage cavity space, it can improve the cooling effect on the storage cavity V1.

[0076] In some embodiments of the present invention, a guide rail is provided below the drawer 150, and the drawer 150 can cooperate with the guide rail to be pulled out and moved relative to the box body 110. A third cold storage section 253250 is provided in the space between the two guide rails, which can make full use of the space below the drawer 150 and further reduce the temperature in the storage cavity V1.

[0077] In some embodiments of the present invention, such as Figure 3 As shown, the third cold storage section 253250 is disposed adjacent to the storage chamber relative to the second cold storage section 252. The phase change temperature of the refrigerant in the third cold storage section 253250 is lower than the phase change temperature of the refrigerant in the second cold storage section 252. In some embodiments of the present invention, such as Figure 3 As shown, the integrated vehicle refrigerator 1000 with stepped cold storage and release also includes: a fan module 300, which is located in the main body 100 to drive airflow in the storage cavity V1. When the compressor is running, the fan module 300 operates to drive the evaporator 220 to quickly exchange heat with the air in the storage cavity V1, and when the compressor stops running, the fan module 300 continues to operate to drive the cold storage unit 250 to quickly dissipate cold to the air in the storage cavity V1.

[0078] The fan module 300 is used to generate airflow. The fan module 300 drives the airflow to exchange heat with the evaporator 220 and drives the heat-exchanged airflow into the storage chamber V1, continuously supplying cold airflow to the storage chamber V1, thereby maintaining the temperature in the storage chamber V1 at a low temperature.

[0079] By incorporating the fan module 300, the integrated vehicle refrigerator 1000 of this embodiment can achieve a hybrid cooling method of direct cooling and air cooling for the storage cavity V1. During direct cooling, the evaporator 220 or the cold storage unit 250 directly transfers the cooling energy to the storage cavity via heat conduction or radiation. During air cooling, air in the storage cavity V1 is drawn into the fan module 300 through ventilation holes. The fan module 300 drives the airflow to exchange heat with the evaporator 220 or the cold storage unit 250, and then re-introduces the cold airflow into the storage cavity V1, thus achieving air circulation within the storage cavity V1 and transferring the cooling energy to the storage cavity V1.

[0080] The fan module 300 controls the delivery of cold air, thereby controlling the temperature inside the storage chamber V1 and improving the cooling effect. For example, the fan module 300 can automatically control its operation based on the temperature inside the storage chamber V1. When the temperature inside the storage chamber V1 is lower than a set value, the fan module 300 stops operating; and when the temperature inside the storage chamber V1 is higher than the set value, the fan module 300 starts operating. This ensures that the temperature inside the storage chamber V1 meets the standard while maintaining the cooling capacity of the cold storage module for a longer period.

[0081] For example, when the evaporator 220 is cooling and the cold storage section 250 is storing cold, the fan module 300 is turned on to realize the internal circulation of air in the box, and the storage chamber V1 is rapidly cooled down through heat convection; when the cold storage section 250 is cooling and keeping cold, the fan module 300 stops running to prevent the temperature from rising too quickly during the cold storage.

[0082] In some embodiments of the present invention, such as Figure 3 As shown, the inner side of the main body 100 is provided with a mounting groove 103; the fan module 300 includes: a fan box 310 and a fan 320. The fan box 310 is assembled in the mounting groove 103. The fan box 310 is provided with an air intake 311 and an air outlet 312, and is connected to the storage cavity V1; the fan 320 is installed in the fan box 310, and the fan 320 is positioned facing the air intake 311 or the air outlet 312.

[0083] The fan box 310 serves as the outer frame of the fan, providing support and protection for the fan 320. The fan box 310 is fitted within the mounting recess 103, minimizing its space requirement in the storage chamber V1. The fan box 310 has an air intake 311 and an air outlet 312, both connected to the storage chamber V1. The fan 320 is positioned facing either the air intake 311 or the air outlet 312, driving airflow towards the storage chamber V1 and continuously supplying cool air to it, thus improving heat exchange efficiency.

[0084] In some embodiments of the present invention, such as Figure 5 and Figure 6As shown, the evaporator 220 also includes an expansion valve 281 and a shut-off valve 282.

[0085] The refrigerant is throttled and depressurized by the expansion valve 281 to convert the low-temperature, high-pressure liquid refrigerant into a low-temperature, low-pressure gaseous refrigerant. The shut-off valve 282 controls the flow of refrigerant in the evaporator 220. When the shut-off valve 282 is open, the refrigerant can flow smoothly through the evaporator 220, and the evaporator 220 performs refrigeration. When the shut-off valve 282 is closed, the refrigerant no longer flows through the evaporator 220, thereby shutting off the evaporator 220.

[0086] The following description, with reference to the accompanying drawings, describes a specific embodiment of the integrated vehicle-mounted refrigerator 1000 with a stepped cold storage and release mechanism according to the present invention.

[0087] The integrated vehicle refrigerator 1000 with stepped cold storage and release includes a cabinet 110, and a storage cavity V1 is provided inside the cabinet 110. The cabinet 110 includes an outer shell 112, a first insulation layer 114 and an inner liner 113. The inner liner 113 is located inside the outer shell 112, and a rectangular storage cavity V1 is formed inside the inner liner 113. The first insulation layer 114 is located between the outer shell 112 and the inner liner 113.

[0088] The integrated vehicle refrigerator 1000 with stepped cold storage and release also includes a cover 130. The inner liner 113 and the outer shell 112 are open on the same side to form a door opening 111. The cover 130 is closable and fits into the door opening 111. The cover 130 includes an outer cover plate 131, an inner cover plate 132, and a second insulation layer 133. The inner cover plate 132 is connected to the side of the outer cover plate 131 facing the storage cavity V1. The second insulation layer 133 is located between the inner cover plate 132 and the outer cover plate 131. A drawer 150 is also connected to the inner cover plate 132, and the drawer 150 is pull-out and disposed in the storage cavity V1.

[0089] The integrated vehicle refrigerator 1000 with stepped cold storage and release also includes an evaporator 220, which is square-shaped and surrounds the upper, left, lower, and right sides of the storage cavity V1. The evaporator 220 avoids the opening 111 and can cool the storage cavity V1 from multiple directions. The integrated vehicle refrigerator 1000 with stepped cold storage and release also includes a cold storage section 250, which is filled with a cold storage refrigerant.

[0090] When the compressor is working, the EXV valve is open, and the refrigerant flows through the evaporator 220 to release cold. Due to heat conduction and radiation, the cold storage agent absorbs cold energy to charge the refrigerator. After the compressor stops, the refrigerator maintains coldness, and the shut-off valve and EXV valve are closed, allowing the cold storage agent to release cold into the refrigerator.

[0091] The cold storage unit 250 includes four first cold storage units 251, each of which is plate-shaped and located on the four outer sides of the evaporator 220. Both the first cold storage units 251 and the evaporator 220 are housed within the casing 110. The inner liner 113 is located inside the evaporator 220, and the first cold storage units 251 are located on the outer side of the evaporator 220. A first insulation layer 114 covers the outer side of the first cold storage units 251.

[0092] The first cold storage unit 251 includes a first cold storage box 2511 and a sealing sheet 2512. The first cold storage box 2511 has a cold-guiding hole 25111 on its wall facing the evaporator 220. The sealing sheet 2512 is sealed to the cold-guiding hole 25111, and the thermal conductivity of the sealing sheet 2512 is greater than that of the first cold storage box 2511. A heating film 410 is provided between the first cold storage unit 251 and the evaporator 220. The heating film 410 has clearance holes 411, which correspond one-to-one with the cold-guiding holes 25111, and also correspond one-to-one with the sealing sheet 2512.

[0093] The first cold storage box 2511 has an opening. Since the thermal conductivity of the box wall is relatively high, it will affect the heat transfer rate of the cold storage agent. This technology makes an opening in the wall of the storage box and seals the opening with a material with strong thermal conductivity. The cold conduction hole 25111 corresponds to the opening of the heating film 410, thereby improving the heat transfer rate of the first cold storage part 251.

[0094] The cold storage section 250 also includes a second cold storage section 252, which is disposed inside the cover 130. The second cold storage section 252 is disposed between the inner cover plate 132 and the second insulation layer 133, and the second insulation layer 133 covers the side of the second cold storage section 252 away from the storage cavity V1.

[0095] The first cold storage section 251 is located closer to the evaporator 220 than the second cold storage section 252. The phase change temperature of the refrigerant in the first cold storage section 251 is -6℃, and the phase change temperature of the refrigerant in the second cold storage section 252 is -3℃.

[0096] The cold storage unit 250 also includes a third cold storage unit 253250, which is located at the bottom of the drawer 150.

[0097] This technology makes full use of the unused internal space of the integrated vehicle refrigerator 1000 with stepped cold storage and release. Cold storage compartments 250 filled with cold storage agent are added between the cabinet wall and the inner liner 113, between the guide rails below the drawer 150, and inside the cabinet door. The increased amount of cold storage agent enhances the cold storage and cold preservation capacity of the integrated vehicle refrigerator 1000 with stepped cold storage and release.

[0098] This technology uses refrigerants with different phase change temperatures in storage compartments at different locations to achieve stepped cold storage and release. By introducing stepped cold storage and release, the temperature inside storage cavity V1 becomes uneven during evaporator 220 cooling; the area near evaporator 220 has a lower temperature, while the area further away has a relatively higher temperature. Therefore, refrigerants with different phase change temperatures can be used. The area near evaporator 220 is filled with a low-temperature refrigerant, and the area further away is filled with a high-temperature refrigerant, achieving stepped cold storage. During cold release, the low-temperature refrigerant releases cold first, and then the high-temperature refrigerant releases cold after the temperature rises, thus improving the refrigerator's cold storage and preservation capabilities.

[0099] The integrated vehicle refrigerator 1000 with stepped cold storage and release also includes a fan module 300, which is located inside the main body 100 to drive airflow within the storage chamber V1.

[0100] By incorporating a fan module 300, the integrated vehicle-mounted refrigerator 1000 of this embodiment, featuring a stepped cold storage and release mechanism, can achieve a hybrid cooling method for the storage cavity V1 using both direct cooling and air cooling. During direct cooling, the evaporator 220 or the cold storage unit 250 directly transfers cold energy to the storage cavity via heat conduction or radiation. During air cooling, air within the storage cavity V1 is drawn into the fan module 300 through ventilation holes. The fan module 300 drives the airflow to exchange heat with the evaporator 220 or the cold storage unit 250, then re-introduces the cold air into the storage cavity V1, thus achieving air circulation within the storage cavity V1 and transferring cold energy to it.

[0101] When the evaporator 220 is cooling and the cold storage section 250 is storing cold, the fan module 300 is turned on to realize the internal air circulation in the box, and the storage chamber V1 is rapidly cooled through heat convection; when the cold storage section 250 is cooling and keeping cold, the fan module 300 stops running to prevent the temperature from rising too quickly during the cold storage.

[0102] According to a second aspect of the present invention, a vehicle includes an integrated vehicle-mounted refrigerator 1000 with a stepped cold storage and release mechanism, as described in the first aspect of the present invention.

[0103] According to an embodiment of the present invention, by providing the above-mentioned integrated vehicle refrigerator 1000 with stepped cold storage and release, the comfort of vehicle use can be improved.

[0104] Other components of the stepped cold storage and release integrated vehicle refrigerator 1000 according to embodiments of the present invention, such as the evaporator 220, and its operation are known to those skilled in the art and will not be described in detail here.

[0105] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated vehicle-mounted refrigerator with a stepped cold storage and release system, characterized in that, include: The main body (100) has a storage cavity (V1) inside. The compressor is located outside the main body (100), and the compressor is a shared compressor for the integrated vehicle refrigerator (1000) and the vehicle air conditioner; An evaporator (220) is disposed within the body (100) and connected to the compressor; At least two cold storage sections (250) are provided inside the main body (100) and are filled with cold storage agent; At least two of the cold storage sections (250) are unequally distanced from the evaporator (220), and the phase change temperature of the refrigerant in the closer cold storage section (250) is lower than that in the farther cold storage section (250). When the compressor is running and the storage chamber (V1) is cooling down, the cold storage section (250) with the higher phase change temperature fills up with cold energy first, and the cold storage section (250) with the lower phase change temperature fills up with cold energy later, so as to achieve stepped cold storage. When the compressor stops running and the storage chamber (V1) is heating up, the cold storage section (250) with the lower phase change temperature starts to release cold energy first, and the cold storage section (250) with the higher phase change temperature starts to release cold energy later, so as to achieve stepped cold release.

2. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 1, characterized in that, The body (100) includes: The box (110) has the storage cavity (V1) inside and the box (110) has an opening (111) on one side. A cover (130) is detachably fitted at the opening (111) of the box; The evaporator (220) is mounted on the housing (110); The cold storage unit (250) includes: The first cold storage unit (251) is provided on the housing (110) and adjacent to the evaporator (220); The second cold storage unit (252) is provided on the cover (130); The phase change temperature of the cold storage agent in the first cold storage section (251) is lower than the phase change temperature of the cold storage agent in the second cold storage section (252).

3. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 2, characterized in that, The first cold storage unit (251) includes: The first cold storage box (2511) is filled with the cold storage agent, and the box wall of the first cold storage box (2511) facing the evaporator (220) is provided with a cold guiding hole (25111). A sealing sheet (2512) is sealed to the cold conduction hole (25111), and the thermal conductivity of the sealing sheet (2512) is greater than that of the first cold storage box (2511).

4. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 2, characterized in that, Also includes: A heating film (410) is provided between the first cold storage section (251) and the evaporator (220), and the heating film (410) is provided with clearance holes (411). The first cold storage unit (251) has a cold guide hole (25111) on the side facing the evaporator (220), and the clearance hole (411) on the heating film (410) is provided in a one-to-one correspondence with the cold guide hole (25111).

5. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 2, characterized in that, The evaporator (220) is arranged around the storage chamber (V1); There are multiple first cold storage units (251), and multiple first cold storage units (251) are arranged sequentially around the evaporator (220).

6. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 5, characterized in that, The storage cavity (V1) is rectangular, and the evaporator (220) is square. There are four first cold storage units (251), and the four first cold storage units (251) are plate-shaped and located on the four outer sides of the evaporator (220); The two ends of the first cold storage units (251) are bent to connect to the other two first cold storage units (251).

7. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 2, characterized in that, The housing (110) includes: Outer shell (112); The inner liner (113) is disposed inside the outer shell (112), and the storage cavity (V1) is formed inside the inner liner (113). The inner liner (113) and the outer shell (112) are open on the same side to form the box opening (111). The first insulation layer (114) is disposed between the outer shell (112) and the inner liner (113); The evaporator (220) is disposed between the first insulation layer (114) and the inner liner (113), and the first cold storage unit (251) is disposed between the first insulation layer (114) and the evaporator (220); The cover (130) includes: Outer cover plate (131); Inner cover plate (132), the inner cover plate (132) is connected to the side of the outer cover plate (131) facing the storage cavity (V1); The second insulation layer (133) is located between the inner cover plate (132) and the outer cover plate (131); The second cold storage section (252) is located between the inner cover plate (132) and the second insulation layer (133).

8. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 7, characterized in that, The main body (100) also includes a drawer (150) connected to the cover (130), the drawer (150) being removably disposed within the storage cavity (V1); The cold storage unit (250) also includes: The third cold storage unit (253) is located at the bottom of the drawer (150).

9. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to any one of claims 1-7, characterized in that, Also includes: A fan module (300) is disposed in the body (100) to drive airflow in the storage chamber (V1). When the compressor is running, the fan module (300) operates to drive the evaporator (220) to exchange heat with the air in the storage chamber (V1) quickly. When the compressor stops running, the fan module (300) continues to operate to drive the cold storage unit (250) to dissipate cold air in the storage chamber (V1) quickly.

10. The integrated vehicle-mounted refrigerator with stepped cold storage and release according to claim 9, characterized in that, The inner side of the body (100) is provided with a mounting groove (103). The fan module (300) includes: A fan box (310) is assembled in the mounting groove (103). The fan box (310) is provided with an air intake (311) and an air outlet (312) and is connected to the storage cavity (V1). A fan (320) is installed inside the fan box (310) and is positioned facing the air intake (311) or the air outlet (312).

11. A vehicle, characterized in that, The integrated vehicle refrigerator (1000) with stepped cold storage and release according to any one of claims 1-10.

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