CN118269588A - Vehicle-mounted refrigerator capable of achieving local rapid cooling - Google Patents

Abstract

A vehicle-mounted refrigerator capable of realizing local rapid cooling in the technical field of vehicle-mounted air conditioners comprises a refrigerator shell, a flip cover, a direct type evaporator module, a cold accumulation type evaporator module, a storage room partition board, an electronic expansion valve, a controller, a fan, a semiconductor refrigerating sheet and a heating film, wherein the direct type evaporator module and the cold accumulation type evaporator module are main refrigerating components; the storage room is divided into a rapid cooling area and a constant cooling area by the storage room partition board, and meanwhile, a semiconductor refrigerating sheet is arranged in the rapid cooling area for auxiliary refrigeration; the evaporator and the semiconductor refrigerating sheet realize the rapid cooling effect of the rapid cooling area of the refrigerator; the heating film is a main heating component, so that the heating effect of the refrigerator is realized. The invention can share the compressor and the condenser with the whole vehicle thermal management system, has lower cost and can realize larger storage space under the same boundary condition; the cold storage agent is arranged in the refrigerator, and the refrigerator can realize long-time heat preservation by utilizing the cold energy stored in the slow-release cold storage module when the compressor is stopped.

Description

Vehicle-mounted refrigerator capable of achieving local rapid cooling

Technical Field

The invention relates to a refrigerator in the technical field of vehicle-mounted refrigerators, in particular to a vehicle-mounted refrigerator with triple cooling of an evaporator, cold accumulation type cooling and semiconductor refrigerating sheets and capable of achieving local rapid cooling.

Background

Along with the high-speed development of domestic new energy automobiles, the vehicle-mounted refrigerator gradually becomes a bright spot for attracting buyers by various large automobile production merchants. Most of the on-vehicle refrigerators in the market at present adopt an independent compressor refrigerating system or a refrigerating method in semiconductor refrigeration. The independent vehicle-mounted refrigerator is limited by the whole vehicle space, and the sizes of the parts such as the compressor, the condenser and the like cannot be too large, so that the refrigerating capacity of the refrigerator is limited; the semiconductor refrigeration refrigerator is limited by the characteristic influence of the semiconductor refrigeration sheet, the larger the temperature difference between the inside and the outside of the refrigerator is, the lower the refrigeration efficiency is, and the refrigerator has almost no refrigeration effect when the temperature difference is close to 20 ℃. The characteristic of low refrigeration performance of the refrigerator leads to poor user experience because the passengers of the automobile often wait for one or two hours to drink cold drinks. Therefore, a refrigerator capable of realizing rapid cooling is urgently needed in the market so as to meet the demands of users of the automobile-mounted refrigerator.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a vehicle-mounted refrigerator capable of realizing local rapid cooling, which does not contain refrigeration parts such as a compressor, a condenser and the like, and shares the compressor and the condenser in a whole vehicle heat management system. The bottom of the refrigerator is provided with a cold accumulation type evaporator module, a direct type evaporator module and a fan, and a semiconductor refrigerating sheet is arranged at the bottom of the rapid cooling area; the rapid cooling area can realize direct evaporator refrigeration and semiconductor refrigeration piece refrigeration simultaneously, and rapid cooling of the rapid cooling area is realized. The side surface of the storage room is paved with a heating film for realizing the heating function of the refrigerator. In the refrigerating process, the refrigerant of the whole vehicle flows into a direct evaporator and a cold accumulation evaporator module in the refrigerator in sequence through a refrigerator pipeline and then flows back to a compressor of the whole vehicle, cold energy is transferred into a storage chamber in a mode of air heat exchange and contact heat exchange, meanwhile, a semiconductor refrigerating sheet is arranged at the bottom of a rapid cooling area in the storage chamber, the refrigerating surface of the semiconductor refrigerating sheet faces to the rapid cooling area, and objects in the rapid cooling area can be directly contacted with the refrigerating surface of the semiconductor refrigerating sheet, so that the dual cooling function is realized; the radiating surface of the semiconductor refrigerating sheet is in direct contact with the cold accumulation module, and heat is directly transferred to the cold accumulation module. In the heating process, the heating film on the side surface of the storage chamber is started to heat the ambient temperature of the storage chamber.

The invention is realized by the following technical scheme that the refrigerator comprises a refrigerator shell, a flip cover, a direct evaporator module, a cold accumulation type evaporator module, a storage room partition board, an electronic expansion valve, a controller, a fan, a semiconductor refrigerating sheet, a heating film, a cabin temperature sensor and a cold accumulation agent temperature sensor, wherein the flip cover is arranged at the top of the refrigerator shell; the inner space of the refrigerator shell is surrounded by the bottom surface of the storage chamber, the side wall of the storage chamber and the flip cover; the storage room partition board consists of a constant speed cooling partition board, a quick cooling partition board, a top partition board and two longitudinal partition boards, wherein the bottoms of the two longitudinal partition boards are respectively connected with the constant speed cooling partition board and the quick cooling partition board; the direct evaporator module comprises a direct evaporator; the cold accumulation type evaporator module, the storage room partition board, the fan, the semiconductor refrigerating sheet, the heating film, the cabin temperature sensor and the cold accumulation agent temperature sensor are all arranged in the refrigerator shell; the cold accumulation type evaporator module is arranged at the upper part of the bottom surface of the storage chamber, and the storage chamber partition plate is arranged at the upper part of the cold accumulation type evaporator module; the refrigerator comprises a refrigerator shell, a storage room partition board, a refrigerator cover and a refrigerator cover, wherein the storage room partition board divides the inner space of the refrigerator shell into a rapid cooling area and a constant cooling area, and the rapid cooling area and the constant cooling area are communicated with each other at the upper part of the storage room partition board; the semiconductor refrigerating sheet is arranged between the cold accumulation type evaporator module and the rapid cooling area partition plate; the fan and the direct evaporator are arranged between the two longitudinal partition plates; the heating film is arranged on the side wall of the storage room, the cabin temperature sensor is arranged on the top partition plate, the cold accumulation agent temperature sensor is arranged in the cold accumulation evaporator module, and the controller is connected with the electronic expansion valve, the respective fans, the semiconductor refrigerating sheet, the heating film, the cabin temperature sensor and the cold accumulation agent temperature sensor through the wire harness.

Further, in the invention, the direct evaporator module further comprises a direct evaporator inlet pipeline and a direct evaporator outlet pipeline, wherein the outlet of the direct evaporator inlet pipeline and the inlet of the direct evaporator outlet pipeline are respectively connected with the inlet and the outlet of the direct evaporator, and the electronic expansion valve is arranged on the direct evaporator inlet pipeline.

Still further, in the present invention, the cool storage type evaporator module includes a cool storage agent, a cool storage agent container, a cool storage agent evaporator inlet pipe, a cool storage agent evaporator outlet pipe, a cool storage agent temperature sensor interface, a cool storage agent container front end plate, the cool storage agent container is composed of a cool storage agent container top plate, a cool storage agent container side plate, a cool storage agent container rear plate, a cool storage agent container bottom plate, an outlet of the cool storage agent evaporator inlet pipe, an inlet of the cool storage agent evaporator outlet pipe are respectively connected with the cool storage agent evaporator inlet and outlet, the cool storage type evaporator is nested in the cool storage agent container, the cool storage agent evaporator inlet pipe, the cool storage agent evaporator outlet pipe pass through the cool storage agent container front end plate, the cool storage agent temperature sensor interface is arranged on the cool storage agent container front end plate, and the cool storage agent temperature sensor is arranged on the cool storage agent temperature sensor interface; the cold storage agent is arranged in the cold storage agent container and positioned around the cold storage agent evaporator, and the front end plate of the cold storage agent container is fixedly connected with the cold storage agent container; the inlet of the inlet pipeline of the cold storage agent evaporator is connected with the outlet of the outlet pipeline of the direct evaporator.

Still further, in the present invention, the semiconductor cooling fin includes a cooling surface facing the rapid cooling zone, and a heat radiating surface closely attached to the top plate of the coolant container; the partition board of the rapid cooling area is clung to the refrigerating surface, and the partition board of the constant-speed cooling area is clung to the top plate of the cold storage agent container.

The controller is connected with the electronic expansion valve, the fans, the semiconductor refrigerating sheets, the heating films, the cabin temperature sensor and the cold storage agent temperature sensor through the electronic expansion valve wire harness, the fan wire harness, the semiconductor refrigerating sheet wire harness, the heating film wire harness, the cabin temperature sensor wire harness and the cold storage agent temperature sensor respectively.

Further, in the present invention, the cold storage agent is a phase change material; the cold storage agent container and the storage chamber partition plate are made of materials with high heat conductivity coefficients.

Further, in the invention, the electronic expansion valve, the direct evaporator module and the cold accumulation evaporator module are connected in series and then connected in parallel with the battery cooler and the cabin evaporator in the whole vehicle thermal management system.

Still further, in the present invention, the controller communicates with the vehicle thermal management controller.

The vehicle-mounted refrigerator is connected with a refrigerant pipeline at the outlet of a condenser and a low-pressure pipeline at the inlet of a compressor of the whole vehicle heat management system, and the compressor and the cooling module in the whole vehicle heat management system are shared. The controller is communicated with the whole vehicle heat management controller, so that the request for starting and stopping refrigeration is sent out by the whole vehicle heat management controller, and the whole vehicle heat management system is matched with the functions of cold accumulation and refrigeration of the refrigerator; the controller can also detect sensors in the refrigerator and control the functions of the electronic expansion valve and the fan.

In the invention, the cold accumulation type evaporator module is placed on the bottom surface of a storage chamber of a refrigerator shell, the cold accumulation type evaporator is nested in a cold accumulation agent container, the cold accumulation agent container is sealed in a way that a front end plate of the cold accumulation agent container is welded with the cold accumulation agent container, and after the cold accumulation agent is filled into the cold accumulation agent container through a cold accumulation agent temperature sensor interface, the cold accumulation agent temperature sensor is arranged on the cold accumulation agent temperature sensor interface, so that the temperature of the cold accumulation agent is monitored and the tightness of the cold accumulation type evaporator module is ensured.

In the invention, the fan is arranged at the air outlet of the direct evaporator; the semiconductor refrigerating plate is arranged at the bottom of the rapid cooling area, the refrigerating surface of the semiconductor refrigerating plate faces the rapid cooling area, and the radiating surface of the semiconductor refrigerating plate is tightly attached to the top plate of the cold storage agent container; the storage room partition board is placed in the storage room to divide the storage room into two areas of a rapid cooling area and a constant cooling area, but the two areas of the rapid cooling area and the constant cooling area are communicated with each other at the upper part of the storage room partition board. The heating film is arranged on the side surface of the storage room; the cabin temperature sensor is arranged at the top of the partition plate; the cold accumulation agent temperature sensor is arranged on a cold accumulation agent temperature sensor interface reserved on the cold accumulation type evaporator module.

In the invention, the direct evaporator module, the cold accumulation type evaporator module and the semiconductor refrigerating sheet can refrigerate simultaneously; the cooling capacity of the direct evaporator is taken away by the air quantity generated by the operation of the fan, firstly, the air quantity is blown to the rapid cooling area to cool the articles in the rapid cooling area, and then, the air quantity flows to the constant cooling area from the channel connected with the rapid cooling area and the constant cooling area to cool the articles in the constant cooling area; meanwhile, the semiconductor refrigerating sheet positioned at the bottom of the rapid cooling area can also refrigerate simultaneously, so that the dual-refrigerating mode function of the rapid cooling area is realized, and the rapid cooling effect is realized.

In the invention, under the condition that other parts in the whole vehicle thermal management system do not need to start the compressor, the existence of the cold storage agent can cause the compressor to store a large amount of cold after being started, the compressor can be turned off, the compressor does not need to be frequently started to maintain refrigeration operation, and the influence on the service life of the compressor is lower; the semiconductor refrigerating sheet is required to absorb heat from the refrigerating surface to the radiating surface in the working process, then the heat is released to the external environment in a radiating mode, the upper surface of the cold storage agent container is mutually attached to the radiating surface, the cold storage agent container is made of a material with high heat conductivity coefficient, the heat of the radiating surface can be well transferred to the cold storage agent, on one hand, the semiconductor refrigerating sheet can be guaranteed to obtain a high-efficiency radiating environment in the working process, and the high-efficiency refrigerating efficiency of the semiconductor refrigerating sheet is maintained; on the other hand, the cold accumulation module contacted with the semiconductor radiating surface is lower in temperature, and based on the characteristics of the semiconductor refrigerating sheet, the refrigerating surface can achieve lower temperature than the cold accumulation module, and the object contacted with the refrigerating surface can be rapidly cooled. When the semiconductor refrigerating sheet is in a rapid refrigerating working condition, waste heat generated in the working process of the semiconductor refrigerating sheet is not directly discharged into a storage chamber, but heat is transferred into the cold storage agent through contact heat exchange between a radiating surface and the upper surface of the cold storage agent container, the heat is transferred into a refrigerant system through an evaporator in the cold storage module, and finally the heat is discharged into an external environment of a vehicle through a condenser of the whole vehicle.

Compared with the prior art, the invention has the beneficial effects that: firstly, the compressor and the condenser can be shared with the whole vehicle thermal management system, the cost is lower, and a larger storage space can be realized under the same boundary condition; secondly, a cold storage agent is arranged in the refrigerator, and the refrigerator can realize long-time heat preservation by utilizing the cold energy stored in the slow-release cold storage module when the compressor is stopped; thirdly, the radiating surface of the semiconductor refrigerating plate is attached to the surface of the cold accumulation container, so that the radiating environment of the semiconductor refrigerating plate is optimized, and the refrigerating effect of the semiconductor refrigerating plate is ensured.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a flip cover according to an embodiment of the present invention;

FIG. 3 is an exploded view of an integral part of an embodiment of the present invention;

fig. 4 is a schematic perspective view of a refrigerator case according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a direct evaporator module according to an embodiment of the invention;

FIG. 6 is an exploded view of a cold storage evaporator module according to an embodiment of the invention;

FIG. 7 is a schematic perspective view of a partition board for a storage compartment according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a semiconductor refrigeration sheet according to an embodiment of the present invention;

FIG. 9 is an assembly part diagram of an electrical device in an embodiment of the invention;

fig. 10 is a perspective view showing the inside of a storage compartment according to an embodiment of the present invention;

FIG. 11 is a diagram of a thermal management system architecture for an entire vehicle in an embodiment of the invention;

Wherein 01, refrigerator shell, 02, flip cover, 03, direct evaporator module, 04, cold storage evaporator module, 05, storage room partition, 06, electronic expansion valve, 07, controller, 08, fan, 09, semiconductor refrigerating sheet, 10, heating film, 11, cabin temperature sensor, 12, cold storage agent temperature sensor, 13, rapid cooling zone, 14, constant cooling zone, 0101, storage room bottom, 0102, storage room side, 0301, direct evaporator, 0302, direct evaporator inlet line, 0303, direct evaporator outlet line, 0401, cold storage agent, 0402, cold storage agent container, 0403, cold-storage evaporator, 0404, cold-storage evaporator inlet pipeline, 0405, cold-storage evaporator outlet pipeline, 0406, cold-storage agent temperature sensor interface, 0407, cold-storage agent container front end plate, 0408, cold-storage agent container top plate, 0409, cold-storage agent container side plate, 0501, constant-speed cooling zone partition plate, 0502, quick-speed cooling zone partition plate, 0503, top partition plate, 0504, longitudinal partition plate, 0601, electronic expansion valve harness, 0801, fan harness, 0903, semiconductor refrigerating sheet harness, 1001, heating film harness, 1101, cabin temperature sensor harness, 1201, cold-storage agent temperature sensor.

Detailed Description

In order to make the description of the present invention easier to understand, the following further explains the technical solution of the present invention in conjunction with the specific embodiment. The examples are only for illustration of the invention, but the invention is not limited to this. The procedures used in the examples below without specifying the particular conditions are generally carried out under conventional conditions or in accordance with the product specifications. The chemical reagent does not identify manufacturers, and is in accordance with national standard regulations and can be purchased in the market.

Examples

As shown in fig. 1 to 11, the present invention includes a refrigerator case 01, a folder 02, a direct evaporator module 03, a cool storage evaporator module 04, a storage compartment partition 05, an electronic expansion valve 06, a controller 07, a fan 08, a semiconductor cooling fin 09, a heating film 10, a cabin temperature sensor 11, a cool storage agent temperature sensor 12, an electronic expansion valve harness 0601, a fan harness 0801, a semiconductor cooling fin harness 0903, a heating film harness 1001, a cabin temperature sensor harness 1101, a cool storage agent temperature sensor 1201; the flip 02 is arranged at the top of the refrigerator shell 01, and the inner space of the refrigerator shell 01 is surrounded by the storage chamber bottom surface 0101, the storage chamber side wall 0102 and the flip 02; the direct evaporator module 03 comprises a direct evaporator 0301, a direct evaporator inlet pipeline 0302 and a direct evaporator outlet pipeline 0303; the cool storage evaporator module 04 comprises a cool storage agent 0401, a cool storage agent container 0402, a cool storage agent evaporator 0403, a cool storage agent evaporator inlet pipeline 0404, a cool storage agent evaporator outlet pipeline 0405, a cool storage agent temperature sensor interface 0406, a cool storage agent container front end plate 0407, wherein the cool storage agent container 0402 is composed of a cool storage agent container top plate 0408, a cool storage agent container side plate 0409, a cool storage agent container rear plate and a cool storage agent container bottom plate; the storage chamber partition board 05 is composed of a constant temperature-reducing partition board 0501, a rapid temperature-reducing partition board 0502, a top partition board 0503 and two longitudinal partition boards 0504; the semiconductor cooling fin 09 includes a cooling surface 0901 and a heat dissipating surface 0902.

The cold accumulation type evaporator module 04 is arranged at the upper part of the bottom surface 0101 of the storage chamber, and the storage chamber partition 05 is arranged at the upper part of the cold accumulation type evaporator module 04; the bottoms of the two longitudinal partition plates 0505 are respectively connected with a constant temperature reduction area partition plate 0501 and a rapid temperature reduction area partition plate 0502, and the top partition plate 0503 is connected with the tops of the two longitudinal partition plates 0504. The storage room partition board 05 divides the inner space of the refrigerator shell 01 into a rapid cooling area 13 and a constant cooling area 14, and the two areas of the rapid cooling area 13 and the constant cooling area 14 are communicated with each other at the upper part of the storage room partition board 05; the semiconductor refrigeration sheet 09 is arranged between the cold accumulation type evaporator module 04 and the rapid cooling area partition 0502; the fan 08, direct evaporator 0301 is arranged between two longitudinal baffles 0504; the cooling surface 0901 faces the rapid cooling area 13, and the cooling surface 0902 is closely attached to the top plate 0408 of the cold storage agent container; the rapid cooling area partition 0502 is closely attached to the cooling surface 0901, and the constant cooling area partition 0501 is closely attached to the coolant container top plate 0408. The heating film 10 is arranged on the storage compartment side wall 0102 and the cabin temperature sensor 11 is arranged on the top partition 0503.

The controller 07 is connected to the electronic expansion valve 06, the respective fans 08, the semiconductor cooling fin 09, the heating film 10, the cabin temperature sensor 11, and the coolant temperature sensor 12 via the electronic expansion valve harness 0601, the fan harness 0801, the semiconductor cooling fin harness 0903, the heating film harness 1001, the cabin temperature sensor harness 1101, and the coolant temperature sensor 1201, respectively.

The outlet of the direct evaporator inlet pipeline 0302 and the inlet of the direct evaporator outlet pipeline 0303 are respectively connected with the inlet and the outlet of the direct evaporator 0301, and the electronic expansion valve 06 is arranged on the direct evaporator inlet pipeline 0302. The outlet of the cold storage agent evaporator inlet pipeline 0404 and the inlet of the cold storage agent evaporator outlet pipeline 0405 are respectively connected with the inlet and outlet of the cold storage agent evaporator 0403, the cold storage agent evaporator 0403 is sleeved in the cold storage agent container 0402, the cold storage agent evaporator inlet pipeline 0404 and the cold storage agent evaporator outlet pipeline 0405 penetrate through the cold storage agent container front end plate 0407, the cold storage agent temperature sensor interface 0406 is arranged on the cold storage agent container front end plate 0407, and the cold storage agent temperature sensor 12 is arranged on the cold storage agent temperature sensor interface 0406; the cold accumulation agent 0401 is arranged in the cold accumulation agent container 0402 and positioned around the cold accumulation agent evaporator 0403, and the front end plate 0407 of the cold accumulation agent container is fixedly connected with the cold accumulation agent container 0402; the inlet of the coolant evaporator inlet line 0404 is connected to the outlet of the direct evaporator outlet line 0303.

In the present invention, the cool storage type evaporator 0403 is fitted into the cool storage agent container 0402, and after the cool storage agent 0401 is filled into the cool storage agent container 0402 through the cool storage agent temperature sensor interface 0406, the cool storage agent temperature sensor 12 is mounted on the cool storage agent temperature sensor interface 0406, and the temperature of the cool storage agent 0401 is monitored and the tightness of the cool storage type evaporator module 04 is ensured.

In the implementation process of the invention, in the whole vehicle heat management system, high-pressure liquid refrigerant from the whole vehicle condenser enters the electronic expansion valve 06 through an air conditioning pipeline, the opening degree of the electronic expansion valve 06 is controlled through the controller 07, the direct evaporator 0301 is connected with the outlet of the electronic expansion valve 06 through the inlet pipeline 0302 of the direct evaporator to receive the refrigerant, the refrigerant enters the cold storage evaporator 0403 through the outlet pipeline 0303 of the direct evaporator and the inlet pipeline 0404 of the cold storage evaporator after first-round heat exchange is carried out on wind generated by the operation of the direct evaporator 0301 and the fan 08, and the refrigerant finally flows back into the whole vehicle heat management system through the outlet pipeline 0405 of the cold storage evaporator to finish one-time refrigerant circulation. The heating film 10 is a main heating component, is nested on the side 0102 of the storage chamber of the refrigerator shell 01, supplies power to the heating film 10 when the heating function is required, and heats the heating film to realize the heating function of the rapid cooling area 13 and the constant cooling area 14.

In the implementation process of the invention, the cold accumulating agent 0401 is a phase change material and can store a certain amount of cold; the cold storage agent container 0402 and the storage chamber partition plates 05 are made of materials with high heat conductivity coefficients; the cold energy generated by the direct evaporator 0301 is generated by the air quantity generated when the fan 08 runs, so as to drive the circulation flow of the internal air, accelerate the diffusion of the cold energy into the storage chamber and perform convection heat exchange with the articles placed in the storage chamber; the cold accumulation type evaporator 0403 is directly soaked in the cold accumulation agent 0401, when the refrigerant passes through the cold accumulation type evaporator 0403, the cold energy is directly released into the cold accumulation agent 0401 through the cold accumulation type evaporator 0403, on one hand, the cold energy is absorbed by the cold accumulation agent 0401, and on the other hand, the cold accumulation agent is subjected to direct contact heat exchange through the cold accumulation agent container 0402 and the normal cooling area 0502 of the storage chamber baffle 05, so that the cooling of the interior of the storage chamber is realized while the cold accumulation is carried out; after the cooling surface 0901 of the semiconductor cooling plate 09 contacts with the rapid cooling area of the storage chamber partition plate 05 for heat exchange, the cooling capacity is released in the rapid cooling area 13 through air or direct contact, the cooling surface 0902 of the semiconductor cooling plate 09 is attached to the upper surface 0409 of the cold storage agent container, heat is transferred into the cold storage agent 0401, and the cooling surface 0901 of the semiconductor cooling plate 09 can obtain a lower temperature than the cold storage agent 0401 based on the characteristics of the semiconductor cooling plate, so that the cooling effect of the rapid cooling area 13 is realized; finally, the direct evaporator module 03, the cold accumulation type evaporator module 04 and the semiconductor refrigerating sheet 09 simultaneously cool the vehicle-mounted refrigerator; the wind generated after the fan 08 works is blown to the rapid cooling area 13 preferentially, and meanwhile, the cooling effect of the semiconductor refrigerating sheet 09 is overlapped, and the dual refrigeration mode is performed simultaneously, so that the rapid cooling effect of the rapid cooling area 13 is realized; the wind flows from the rapid cooling area 13 to the constant cooling area 14 through the space at the upper part of the storage room partition board 05, and the unused cold energy of the rapid cooling area 13 is brought to the constant cooling area 14 for cooling the articles in the constant cooling area; in summary, the vehicle-mounted refrigerator capable of being locally and rapidly cooled realizes the rapid cooling effect of the rapid cooling area 13, thereby realizing the function of local and rapid cooling of the vehicle-mounted refrigerator capable of being locally and rapidly cooled.

In the implementation process of the invention, the ratio of the cold energy required by the vehicle-mounted refrigerator capable of being cooled locally and rapidly is very low in the whole vehicle, so that the presence of the cold accumulation agent 0401 can promote the compressor to store a large amount of cold energy after being started under the condition that other parts in the whole vehicle thermal management system do not need to start the compressor, the compressor can be turned off, the compressor does not need to be started frequently to maintain refrigeration operation, and the service life of the compressor is prolonged.

In the implementation process of the invention, the vehicle-mounted refrigerator capable of being locally and rapidly cooled can be integrated in a whole vehicle heat management system, and parts of a refrigerating system such as a compressor, a condenser, a cooling fan and the like are shared by the whole vehicle, and the electronic expansion valve 06, the direct evaporator module 03 and the cold storage evaporator module 04 are connected in series and then connected with a battery cooler and a cabin evaporator in the whole vehicle heat management system in parallel, so that the early-stage cold storage process of the vehicle-mounted refrigerator capable of being locally and rapidly cooled is respectively described according to different working conditions encountered in the heat management system.

Working condition one: in the whole vehicle thermal management system, the vehicle-mounted refrigerator capable of locally and rapidly cooling starts to store cold, and the battery cooler and the cabin evaporator do not need to work at the moment.

Under the condition that the whole vehicle heat management system is in the working condition 1, the vehicle-mounted refrigerator starts a compressor of the whole vehicle according to the user requirement, and the corresponding evaporation temperature is adjusted through the electronic expansion valve 06, so that the evaporation temperature is maintained below the phase change temperature of the cold storage agent 0401, and when the temperature of the cold storage agent 0401 is lower than the phase change temperature point, the vehicle-mounted refrigerator capable of locally and rapidly cooling at the moment finishes cold storage, and the compressor in the whole vehicle heat management system can stop running.

Working condition II: in the whole vehicle thermal management system, a vehicle-mounted refrigerator capable of locally and rapidly cooling begins to store cold, a battery cooler or a cabin evaporator works, and the evaporation temperature of a refrigerant is lower than the phase change temperature of the cold storage agent 0401.

Under the condition that the whole vehicle thermal management system is in the working condition 2, the vehicle-mounted refrigerator opens the electronic expansion valve 06 through the requirement of a user, at the moment, the evaporation temperature of the refrigerant is lower than the phase change temperature of the cold accumulation agent 0401, cold accumulation can be completed, and when the temperature of the cold accumulation agent 0401 is lower than the phase change temperature, the cold accumulation is completed, and the electronic expansion valve 06 is closed.

In the implementation process of the invention, the following description is made for the working mode of the vehicle-mounted refrigerator capable of locally and rapidly cooling:

Non-rapid refrigeration conditions: after receiving the demand of users for non-rapid refrigeration, the controller 07 sends a signal to the electronic expansion valve 06 through the wire harness 0601, the electronic expansion valve 06 opens the valve, and the refrigerant starts to enter the direct evaporator 0301 and the cold accumulation evaporator 0403 for internal circulation; the controller sends out a signal through a wire harness 0801, the fan 08 starts to work, and the heat exchange between the air in the cabin and the direct evaporator 0301 is accelerated; the temperature sensor of the cold accumulation agent monitors the temperature of the cold accumulation agent 0401 in real time and feeds data back to the controller 07 through the wire harness 1201, when the temperature of the cold accumulation agent 0401 is lower than a set temperature value, the controller 07 makes a judgment according to internal set logic and then closes the electronic expansion valve 06, and when the temperature of the cold accumulation agent 0401 is higher than the set temperature value, the controller 07 opens the electronic expansion valve 06 according to the internal set logic judgment; the cabin temperature sensor 11 monitors the temperature in the storage compartment in real time and feeds back data to the controller 07 via the line speed 1101.

Fast refrigeration working condition: after receiving the demand of the user for rapid refrigeration, the controller 07 sends a signal to the semiconductor refrigeration piece through the wire harness 0903 on the basis of the non-rapid refrigeration working condition, and the semiconductor refrigeration piece starts to work.

Heating working conditions: after the controller 07 receives the heating requirement of a user, the controller 07 starts the heating film 1001 through the wire harness 1001, the cabin temperature sensor 11 monitors the ambient temperature of the storage room and feeds data back to the controller 07 through the wire harness 1101 in real time, a set of logic judgment of a temperature interval is set in the controller, and when the temperature of the storage room is monitored to be higher than the highest value of the set temperature interval, the controller 07 sends out a signal to close the heating film 10; when it is monitored that the temperature of the storage compartment is lower than the minimum value of the set temperature interval, the controller 07 sends out a signal to turn on the heating film 10.

The above embodiments are merely illustrative of the design principles and the application of the present invention and are not intended to limit the present invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (8)

1. The vehicle-mounted refrigerator capable of achieving local rapid cooling comprises a refrigerator shell (01) and a flip cover (02), wherein the flip cover (02) is arranged at the top of the refrigerator shell (01), and is characterized by further comprising a direct evaporator module (03), a cold accumulation type evaporator module (04), a storage room partition plate (05), an electronic expansion valve (06), a controller (07), a fan (08), a semiconductor refrigerating sheet (09), a heating film (10), a cabin temperature sensor (11) and a cold accumulation agent temperature sensor (12);

The inner space of the refrigerator shell (01) is surrounded by a storage chamber bottom surface (0101), a storage chamber side wall (0102) and a flip cover (02);

the storage room partition board (05) is composed of a constant-speed cooling area partition board (0501), a quick cooling area partition board (0502), a top partition board (0503) and two longitudinal partition boards (0504), the bottoms of the two longitudinal partition boards (0505) are respectively connected with the constant-speed cooling area partition board (0501) and the quick cooling area partition board (0502), and the top partition board (0503) is connected with the tops of the two longitudinal partition boards (0504);

The direct evaporator module (03) comprises a direct evaporator (0301);

The cold accumulation type evaporator module (04), the storage room partition plate (05), the fan (08), the semiconductor refrigerating sheet (09), the heating film (10), the cabin temperature sensor (11) and the cold accumulation agent temperature sensor (12) are all arranged in the refrigerator shell (01); the cold accumulation type evaporator module (04) is arranged at the upper part of the bottom surface (0101) of the storage chamber, and the storage chamber partition plate (05) is arranged at the upper part of the cold accumulation type evaporator module (04); the storage room partition board (05) divides the inner space of the refrigerator shell (01) into a rapid cooling area (13) and a constant cooling area (14), and the two areas of the rapid cooling area (13) and the constant cooling area (14) are communicated with each other at the upper part of the storage room partition board (05); the semiconductor refrigerating sheet (09) is arranged between the cold accumulation type evaporator module (04) and the rapid cooling area partition plate (0502); the fan (08), direct evaporator (0301) are arranged between two longitudinal baffles (0504);

The heating film (10) is arranged on the side wall (0102) of the storage room, the cabin temperature sensor (11) is arranged on the top partition plate (0503), the cold accumulation agent temperature sensor (12) is arranged in the cold accumulation evaporator module (04), and the controller (07) is connected with the electronic expansion valve (06), the fan (08) respectively, the semiconductor refrigerating sheet (09), the heating film (10), the cabin temperature sensor (11) and the cold accumulation agent temperature sensor (12) through wire harnesses.

2. A vehicle-mounted refrigerator capable of realizing local rapid cooling according to claim 1, wherein the direct evaporator module (03) further comprises a direct evaporator inlet pipeline (0302) and a direct evaporator outlet pipeline (0303), the outlet of the direct evaporator inlet pipeline (0302) and the inlet of the direct evaporator outlet pipeline (0303) are respectively connected with the inlet and outlet of the direct evaporator (0301), and the electronic expansion valve (06) is arranged on the direct evaporator inlet pipeline (0302).

3. A vehicle-mounted refrigerator capable of locally and rapidly cooling according to claim 2, characterized in that the cold storage evaporator module (04) comprises a cold storage agent (0401), a cold storage agent container (0402), a cold storage agent evaporator (0403), a cold storage agent evaporator inlet pipeline (0404), a cold storage agent evaporator outlet pipeline (0405), a cold storage agent temperature sensor interface (0406) and a cold storage agent container front end plate (0407), the cold storage agent container (0402) is composed of a cold storage agent container top plate (0408), a cold storage agent container side plate (0409), a cold storage agent container rear plate and a cold storage agent container bottom plate, an outlet of the cold storage agent evaporator inlet pipeline (0404) and an inlet of the cold storage agent evaporator outlet pipeline (0405) are respectively connected with the cold storage agent evaporator (0403), the cold storage agent evaporator inlet pipeline (0403) is nested into the cold storage agent container (0402), the cold storage agent evaporator inlet pipeline (0404) and the cold storage agent evaporator outlet pipeline (0405) penetrate through the cold storage agent container front end plate (0407), the cold storage agent temperature sensor interface (0406) is arranged on the cold storage agent container front end plate (0406), and the cold storage agent temperature sensor interface (0406) is arranged on the cold storage agent front end plate (0406); the cold accumulation agent (0401) is arranged in the cold accumulation agent container (0402) and positioned around the cold accumulation agent evaporator (0403), and the front end plate (0407) of the cold accumulation agent container is fixedly connected with the cold accumulation agent container (0402); the inlet of the cold storage agent evaporator inlet pipeline (0404) is connected with the outlet of the direct evaporator outlet pipeline (0303).

4. A vehicle-mounted refrigerator capable of being cooled down locally and rapidly according to claim 3, characterized in that the semiconductor refrigerating plate (09) comprises a refrigerating surface (0901) and a radiating surface (0902), the refrigerating surface (0901) faces the rapid cooling zone (13), and the radiating surface (0902) is closely attached to the top plate (0408) of the cold storage agent container; the rapid cooling area partition plate (0502) is tightly attached to the refrigerating surface (0901), and the constant cooling area partition plate (0501) is tightly attached to the top plate (0408) of the cold storage agent container.

5. The vehicle-mounted refrigerator capable of achieving local rapid cooling according to claim 4, further comprising an electronic expansion valve wire harness (0601), a fan wire harness (0801), a semiconductor refrigeration piece wire harness (0903), a heating film wire harness (1001), a cabin temperature sensor wire harness (1101) and a cold storage agent temperature sensor (1201), wherein the controller (07) is connected with the electronic expansion valve wire harness (0601), the fan wire harness (0801), the semiconductor refrigeration piece wire harness (0903), the heating film wire harness (1001), the cabin temperature sensor wire harness (1101) and the cold storage agent temperature sensor (1201) through the electronic expansion valve wire harness (0601), the heating film wire harness (1001), the cabin temperature sensor wire harness (1101) and the cold storage agent temperature sensor (1201) respectively, and the electronic expansion valve wire harness (06), the fan (08), the semiconductor refrigeration piece (09), the heating film (10), the cabin temperature sensor (11) and the cold storage agent temperature sensor (12) respectively.

6. The vehicle-mounted refrigerator capable of being cooled down locally and quickly according to claim 5, wherein the cold storage agent (0401) is a phase change material; the cold storage agent container (0402) and the storage chamber partition plate (05) are made of materials with high heat conductivity coefficients.

7. The vehicle-mounted refrigerator capable of being cooled down locally and quickly according to claim 1, characterized in that the electronic expansion valve (06), the direct evaporator module (07) and the cold accumulation evaporator module (04) are connected in series and then connected in parallel with a battery cooler and a cabin evaporator in the whole vehicle thermal management system.

8. A vehicle refrigerator with local rapid cooling according to claim 7, wherein the controller (07) is in communication with the overall vehicle thermal management controller.