A water-cooled vehicle refrigerator based on automotive air conditioning, a control method, and a vehicle

Abstract

This application relates to the field of vehicle refrigerator technology, and discloses a water-cooled vehicle refrigerator based on automotive air conditioning, a control method, and a vehicle. The water-cooled vehicle refrigerator includes: a cooling heat exchanger, which is installed at the cooling end of the vehicle air conditioning unit and has a heat dissipation channel; a refrigerator heat exchanger, which has a refrigerator refrigeration circuit and a heat absorption channel; a cooling pump, which is connected to the heat absorption channel and the heat dissipation channel; and a liquid storage device, which is connected between the heat absorption channel and the heat dissipation channel. The cooling pump, liquid storage device, heat absorption channel, and heat dissipation channel are connected to form a circulating heat dissipation path. The coolant in the circulating heat dissipation path dissipates heat through the cooling end of the vehicle air conditioning unit in the cooling heat exchanger and absorbs heat from the refrigerator refrigeration circuit in the refrigerator heat exchanger. This solves the problems of low condenser heat dissipation efficiency, poor cooling effect, and long cooling time in existing vehicle refrigerators that use fans for heat dissipation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted refrigerators, in particular to a water-cooled vehicle-mounted refrigerator based on an automobile air conditioner, a control method and a vehicle. BACKGROUND

[0002] With the popularity of vehicles, users pay more attention to the driving experience when using vehicles, and vehicle-mounted refrigerators gradually become a kind of accessory of vehicles from home. The emergence of vehicle-mounted refrigerators meets the growing needs of users. At present, the vehicle-mounted refrigerators in the industry are usually based on a compressor type vehicle-mounted refrigerator scheme, such as the compressor refrigeration vehicle-mounted refrigerator disclosed in patent No. CN201711064437.1. The compressor refrigeration vehicle-mounted refrigerator discloses a scheme of using a compressor to compress refrigeration, and a condenser to absorb the air in the vehicle for heat dissipation through air cooling (usually a fan).

[0003] The main problem of the existing vehicle-mounted refrigerator using a fan for heat dissipation is that in summer or in high temperature conditions with strong sunlight, the air temperature in the vehicle is high, and the temperature of the air blown by the fan is also high, which is not conducive to the heat dissipation of the condenser, resulting in poor refrigeration effect and long refrigeration time of the vehicle-mounted refrigerator.

[0004] Therefore, the existing situation and technology need to be improved and developed. SUMMARY

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a water-cooled vehicle-mounted refrigerator based on an automobile air conditioner, a control method and a vehicle, which solves the problem of low heat dissipation efficiency of the condenser of the existing vehicle-mounted refrigerator using a fan for heat dissipation, resulting in poor refrigeration effect and long refrigeration time of the vehicle-mounted refrigerator.

[0006] The technical scheme of the present application is as follows:

[0007] In a first aspect, the present application provides a water-cooled vehicle-mounted refrigerator based on an automobile air conditioner, which is connected with a vehicle-mounted air conditioner, wherein the water-cooled vehicle-mounted refrigerator comprises:

[0008] A cooling heat exchanger is arranged at the refrigeration end of the vehicle-mounted air conditioner, and a heat dissipation flow channel is arranged in the cooling heat exchanger;

[0009] A refrigerator heat exchanger is arranged in the cooling heat exchanger, and a refrigerator refrigeration circuit and a heat absorption flow channel are arranged in the refrigerator heat exchanger;

[0010] A cooling pump is connected with the heat absorption flow channel and the heat dissipation flow channel;

[0011] A liquid storage member is connected between the heat absorption flow channel and the heat dissipation flow channel;

[0012] The cooling pump, the liquid storage member, the heat absorbing flow channel and the heat dissipating flow channel are connected to form a circulating heat dissipation passage, and the cooling liquid in the circulating heat dissipation passage is cooled in the cooling heat exchanger by the refrigeration end of the vehicle-mounted air conditioner and absorbs the heat of the refrigerator refrigeration circuit in the refrigerator heat exchanger.

[0013] According to the above technical means, the cooling pump, the liquid storage member, the heat absorbing flow channel and the heat dissipating flow channel are connected to form a circulating heat dissipation passage, and the cooling liquid in the circulating heat dissipation passage is cooled in the cooling heat exchanger by the refrigeration end of the vehicle-mounted air conditioner and absorbs the heat of the refrigerator refrigeration circuit in the refrigerator heat exchanger.

[0014] In combination with the first aspect, in some implementations of the first aspect, the refrigeration end of the vehicle-mounted air conditioner includes an air conditioner refrigeration circuit, and the air conditioner refrigeration circuit is arranged in the cooling heat exchanger.

[0015] According to the above technical means, the air conditioner refrigeration circuit and the heat dissipating flow channel are arranged in the cooling heat exchanger, so that the air conditioner refrigeration system and the circulating heat dissipation passage share one heat dissipating structure, thereby reducing the heat dissipating structure and the production cost, and directly conducting heat in one heat exchanger, thereby improving the heat dissipation efficiency.

[0016] In combination with the first aspect, in some implementations of the first aspect, the cooling heat exchanger includes a first heat exchange core body, and a plurality of heat dissipation fins are arranged in the first heat exchange core body.

[0017] The heat dissipating flow channel and the air conditioner refrigeration circuit are arranged in a serpentine coil shape, and the serpentine coil-shaped heat dissipating flow channel and air conditioner refrigeration circuit are arranged in the plurality of heat dissipation fins.

[0018] According to the above technical means, the coil structure and the heat dissipation fin structure are combined, so that the heat dissipation paths of the heat dissipating flow channel and the air conditioner refrigeration circuit are improved, thereby the heat dissipating flow channel can be fully cooled, the cold energy generated by the air conditioner refrigeration circuit is close to the heat dissipating flow channel, the cold energy utilization rate is improved, and the cooling liquid in the heat dissipating flow channel is quickly cooled, thereby improving the heat dissipation efficiency.

[0019] In combination with the first aspect, the refrigerator heat exchanger comprises a second heat exchange core, the refrigerator refrigeration circuit comprises a plurality of refrigerator refrigeration branches, and the heat absorption flow channel comprises a plurality of heat absorption sub-flow channels.

[0020] The plurality of refrigerator refrigeration branches and the plurality of heat absorption sub-flow channels are arranged at intervals.

[0021] According to the above technical means, by arranging the plurality of refrigerator refrigeration branches and the plurality of heat absorption sub-flow channels at intervals, multi-channel continuous heat conduction is achieved, the heat dissipation efficiency is improved, more heat in the refrigerator refrigeration circuit is taken away by the cooling liquid in the refrigerator refrigeration branch, thereby improving the working efficiency of the refrigerant in the refrigerator refrigeration circuit, and further improving the refrigeration efficiency of the vehicle-mounted refrigerator refrigeration system.

[0022] In combination with the first aspect, in some implementations of the first aspect, the second heat exchange core comprises a water-cooled box shell, and a plurality of heat dissipation plate assemblies are sequentially and communicatively arranged in the water-cooled box shell.

[0023] Each of the heat dissipation plate assemblies is provided with a refrigerator refrigeration branch, an inlet end of each of the refrigerator refrigeration branches is communicatively connected to a refrigerator refrigerant inlet outside the water-cooled box shell, and an outlet end of each of the refrigerator refrigeration branches is communicatively connected to a refrigerator refrigerant outlet outside the water-cooled box shell.

[0024] Adjacent heat dissipation plate assemblies are arranged at a predetermined interval to form a heat absorption sub-flow channel, liquid inlet ends of the plurality of heat absorption sub-flow channels are communicatively connected to a second cooling liquid inlet outside the water-cooled box shell, and liquid outlet ends of the plurality of heat absorption sub-flow channels are communicatively connected to a second cooling liquid outlet outside the water-cooled box shell.

[0025] According to the above technical means, the second heat exchange core is arranged in a structure in which a plurality of heat dissipation plate assemblies are arranged at intervals, which facilitates disassembly and maintenance while improving the water cooling efficiency.

[0026] In combination with the first aspect, in some implementations of the first aspect, the heat dissipation plate assembly comprises a first sealing plate, a first refrigeration groove is arranged on one side of the first sealing plate, an inlet guide column and an outlet guide column are arranged on the other side of the first sealing plate, an inlet through hole is formed in the inlet guide column, and an outlet through hole is formed in the outlet guide column.

[0027] A second sealing plate is arranged, a second refrigeration groove is formed on one side of the second sealing plate, and an inlet hole and an outlet hole are formed on the other side of the second sealing plate.

[0028] The first sealing plate and the second sealing plate are arranged opposite to each other to connect the first refrigeration groove and the second refrigeration groove to form a refrigerator refrigeration branch, the inlet hole is communicatively connected to the refrigerator refrigeration branch, and the outlet hole is communicatively connected to the refrigerator refrigeration branch.

[0029] In adjacent two heat dissipation plate assemblies:

[0030] The inlet guide column and the outlet guide column of one heat dissipation plate assembly are connected with another heat dissipation plate assembly respectively, so that the heat absorption branch flow channels are formed through the gaps supported by the lengths of the inlet guide column and the outlet guide column.

[0031] The inlet through hole and the outlet through hole of one heat dissipation plate assembly are connected with the inlet hole and the outlet hole of another heat dissipation plate assembly respectively, so that the inlet ends of each refrigeration branch are connected in communication and the outlet ends of each refrigeration branch are connected in communication.

[0032] According to the above technical means, the heat absorption branch flow channels are formed by splicing the first sealing plate and the second sealing plate, and the inlet guide column and the outlet guide column of one heat dissipation plate assembly are connected with another heat dissipation plate assembly respectively, so that the heat absorption branch flow channels are formed through the inlet guide column and the outlet guide column. In this way, only the plate-shaped structures are used to realize the setting of the two passages, and the two passages are completely separated and realize their respective functions without interference. The surfaces of the entire first sealing plate and the second sealing plate are in heat exchange with the cooling liquid, so as to improve the heat dissipation efficiency.

[0033] In combination with the first aspect, in some implementations of the first aspect, the liquid storage member includes an expansion kettle, and the expansion kettle is arranged on the condensate water receiving tray.

[0034] The expansion kettle is provided with a water collecting tray, and a water falling hole is formed below the water collecting tray. The air conditioner condensate water collected by the water collecting tray is guided to the expansion kettle from the water falling hole to dissipate heat for the expansion kettle.

[0035] According to the above technical means, the vehicle-mounted air conditioner generates condensate water during use, and the condensate water has a low temperature. Therefore, the air conditioner condensate water collected by the water collecting tray is guided to the expansion kettle from the water falling hole, and the outer air conditioner condensate water can also cool the cooling liquid after heat absorption when the cooling liquid after heat absorption enters the expansion kettle, so as to perform a temperature drop for the cooling liquid after heat absorption, and further temperature drop when passing through the refrigeration end of the vehicle-mounted air conditioner. Compared with heat dissipation only through the refrigeration end of the vehicle-mounted air conditioner, the influence on the refrigeration effect of the vehicle-mounted air conditioner is relatively small.

[0036] In the second aspect, the application further provides a control method of a vehicle-mounted refrigerator, which is applied to the water-cooled vehicle-mounted refrigerator based on the automobile air conditioner as described above. The control method includes the following steps:

[0037] When the vehicle-mounted air conditioner is in an open state, the cooling pump is started.

[0038] The compressor of the vehicle-mounted refrigerator is started to refrigerate the vehicle-mounted refrigerator.

[0039] The refrigeration temperature of the vehicle-mounted refrigerator is detected, and when the refrigeration temperature does not reach a preset temperature, the rotation speed of the compressor and the rotation speed of the cooling pump are controlled to continuously reduce the temperature to the preset temperature.

[0040] With reference to the second aspect, in some implementations of the second aspect, when the air conditioner is in the on state, the step of starting the cooling pump comprises:

[0041] detecting an outdoor temperature, and comparing the outdoor temperature with a first preset outdoor temperature;

[0042] when the outdoor temperature is less than or equal to the first preset outdoor temperature, starting an indoor unit fan of the vehicle-mounted air conditioner;

[0043] when the outdoor temperature is greater than the first preset outdoor temperature, starting the vehicle-mounted air conditioner to perform refrigeration.

[0044] According to the above technical means, different use states of the vehicle-mounted refrigerator can be realized according to different outdoor temperatures or seasons. In particular, in the case where the vehicle-mounted air conditioner needs to be used in winter, only the indoor unit fan of the vehicle-mounted air conditioner can be started, and the heat in the heat dissipation flow channel in the cooling heat exchanger can be blown out by the indoor unit fan, which not only achieves the purpose of heat dissipation, but also provides heating for the vehicle interior, thereby saving energy.

[0045] In a third aspect, the present application further provides a vehicle, comprising a vehicle body, a vehicle-mounted air conditioner, and the water-cooled vehicle-mounted refrigerator based on the automobile air conditioner.

[0046] The water-cooled vehicle-mounted refrigerator based on the automobile air conditioner, the control method, and the vehicle provided by the present application have at least the following beneficial effects:

[0047] (1) The cooling capacity of the refrigeration end of the vehicle-mounted air conditioning system is used to exchange energy between the heat dissipation flow channel of the circulating heat dissipation passage and the refrigeration end of the vehicle-mounted air conditioning system in the cooling heat exchanger, so as to rapidly cool the cooling liquid in the heat dissipation flow channel, transfer the heat load of the vehicle-mounted refrigerator refrigeration system to the air conditioning refrigeration system through the cooling heat exchanger and the refrigeration end, and exchange heat between the cooling liquid after rapid cooling in the refrigerator heat exchanger and the refrigerator refrigeration circuit of the vehicle-mounted refrigerator refrigeration system, thereby improving the heat exchange capacity and heat exchange efficiency, and realizing the refrigeration function of the vehicle-mounted refrigerator system.

[0048] (2) The water cooling method is used to replace the traditional fan cooling, so as to avoid the problems of vibration and noise generated by the fan during operation, affecting the driving experience, and resonance with the compressor to produce a booming sound.

[0049] (3) The hot air generated by the traditional fan during operation is avoided, and the air flow is easily blown into the vehicle interior, thereby causing discomfort. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 FIG. 1 is a structural schematic diagram of a water-cooled vehicle-mounted refrigerator based on an automobile air conditioner according to the present application;

[0051] Figure 2Front view of cooling heat exchanger of water-cooled vehicle refrigerator based on automobile air conditioner of the embodiment;

[0052] Figure 3 Sectional view of refrigerator heat exchanger of water-cooled vehicle refrigerator based on automobile air conditioner of the embodiment;

[0053] Figure 4 Assembly principle diagram of heat dissipation plate assembly of water-cooled vehicle refrigerator based on automobile air conditioner of the embodiment;

[0054] Figure 5 Rear view of heat dissipation plate assembly of water-cooled vehicle refrigerator based on automobile air conditioner of the embodiment;

[0055] Figure 6 Sectional view of liquid storage of water-cooled vehicle refrigerator based on automobile air conditioner of the embodiment;

[0056] Figure 7 Flow chart of main steps of control method of vehicle refrigerator of the embodiment;

[0057] Figure 8 Flow chart of detailed steps of control method of vehicle refrigerator of the embodiment.

[0058] Reference numerals in the figure: 100, cooling heat exchanger; 110, heat dissipation flow channel; 120, refrigeration end; 121, air conditioner refrigeration circuit; 130, first heat exchange core; 200, refrigerator heat exchanger; 210, refrigerator refrigeration circuit; 211, refrigerator refrigeration branch; 220, heat absorption flow channel; 221, heat absorption branch flow channel; 230, second heat exchange core; 231, water-cooled box shell; 232, box body; 233, box cover; 234, refrigerator refrigerant inlet; 235, refrigerator refrigerant outlet; 236, second cooling liquid inlet; 237, second cooling liquid outlet; 238, water inlet space; 239, water outlet space; 240, heat dissipation plate assembly; 241, first sealing plate; 242, second sealing plate; 243, inlet guide column; 244, outlet guide column; 245, inlet through hole; 246, outlet through hole; 247, inlet hole; 248, outlet hole; 300, cooling pump; 400, liquid storage; 410, expansion kettle; 420, water collecting tray; 421, water falling hole; 430, condensate water receiving tray; 500, vehicle refrigerator refrigeration system; 510, compressor; 520, evaporator; 530, refrigerator storage box. DETAILED DESCRIPTION

[0059] The objectives, advantages and effects of the application will be apparent from the following embodiments described with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the application from the content disclosed in the specification. The application can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the application. It should be understood that the preferred embodiments are only for illustrating the application, but not for limiting the protection scope of the application.

[0060] The existing air-cooled mode uses a fan to blow air. In high-temperature conditions, the heat dissipation efficiency of the condenser is low, resulting in poor refrigeration effect and long refrigeration time of the vehicle-mounted refrigerator. Moreover, when the fan is working, it will produce vibration and noise, which will affect the driving experience. In particular, it is easy to form resonance with the compressor and produce a booming sound. In addition, when the fan is working, hot air passes through the condenser, the hot air is heated by the condenser, and then discharged to the passenger compartment. The airflow is easy to blow to the user in the vehicle, such as the legs and feet, causing complaints. Based on the above shortcomings, the following embodiments are proposed to solve the above problems.

[0061] Embodiment one

[0062] As shown in Figure 1 The present embodiment proposes a water-cooled vehicle-mounted refrigerator based on an automobile air conditioner, which is connected with the vehicle-mounted air conditioner, and the vehicle-mounted refrigerator refrigeration system 500 of the water-cooled vehicle-mounted refrigerator also uses an air compressor refrigeration system. The cold energy of the refrigeration end 120 of the vehicle-mounted air conditioner system is used to dissipate heat for the air compressor refrigeration system.

[0063] As shown in Figure 1As shown, the water-cooled vehicle refrigerator based on the vehicle air conditioner in the embodiment mainly comprises a cooling heat exchanger 100, a refrigerator heat exchanger 200, a cooling pump 300 and a liquid storage 400. The cooling heat exchanger 100 is arranged at a refrigeration end 120 of the vehicle air conditioner, the refrigeration end 120 of the vehicle air conditioner is part of the vehicle air conditioner system, and the normal cold air function of the vehicle air conditioner is realized. The cooling heat exchanger 100 is provided with a heat dissipation flow channel 110. When the vehicle air conditioner is normally working, the vehicle air conditioner generates cold energy through the refrigeration end 120, and the cooling liquid in the heat dissipation flow channel 110 is cooled by the cold energy to reduce the temperature of the cooling liquid flowing through the heat dissipation flow channel 110. The refrigerator heat exchanger 200 can be part of a refrigerator refrigeration system 500, and the refrigerator heat exchanger 200 is provided with a refrigerator refrigeration circuit 210 and a heat absorption flow channel 220. The refrigerator refrigeration system 500 further comprises a compressor 510, an evaporator 520 and a refrigerator storage box 530. The compressor 510 is connected to the evaporator 520 through a pipeline, the evaporator 520 is connected to the refrigerator refrigeration circuit 210 in the refrigerator heat exchanger 200 through a pipeline, and the refrigerator heat exchanger 200 is connected to the compressor 510 through a pipeline, so as to form a vehicle refrigerator assembly. In the refrigerator refrigeration system 500, the compressor 510 compresses the refrigerant to discharge gaseous refrigerant, which is heated in the refrigerator refrigeration circuit 210 in the refrigerator heat exchanger 200, and exchanges heat with the cooling liquid in the heat absorption flow channel 220 in the refrigerator heat exchanger 200. The heat is released, and then enters the evaporator 520 to absorb heat, so as to reduce the temperature in the refrigerator storage box 530, and then returns to the compressor 510. In this way, the evaporator 520 provides cold air to the refrigerator storage box 530, so that the refrigerator storage box 530 realizes the function of refrigerating food.

[0064] The cooling pump 300 in the embodiment adopts an electronic pump, and the cooling pump 300 is connected to the heat absorption flow channel 220 and the heat dissipation flow channel 110, so as to provide flow power for the cooling liquid in the flow channels. The liquid storage 400 is connected between the heat absorption flow channel 220 and the heat dissipation flow channel 110, and serves to store the cooling liquid. Therefore, the cooling pump 300, the liquid storage 400, the heat absorption flow channel 220 and the heat dissipation flow channel 110 are connected to form a circulating heat dissipation passage. The cooling liquid in the circulating heat dissipation passage is cooled by the refrigeration end 120 of the vehicle air conditioner in the cooling heat exchanger 100 and absorbs the heat of the refrigerator refrigeration circuit 210 in the refrigerator heat exchanger 200.

[0065] As shown, Figure 1As shown, the principle and effect of the water-cooled vehicle refrigerator based on the automobile air conditioner in the embodiment are as follows: the cooling pump 300, the liquid storage member 400, the heat absorption flow channel 220 and the heat dissipation flow channel 110 are connected to form a circulating heat dissipation passage, under the action of the cooling pump 300, the cooling liquid in the circulating heat dissipation passage circulates between the heat absorption flow channel 220 and the heat dissipation flow channel 110, when the cooling liquid flows through the refrigerator heat exchanger 200, heat is transferred with the refrigerator refrigeration circuit 210 inside the refrigerator heat exchanger 200, and the heat of the refrigerator refrigeration circuit 210 is absorbed, so that the refrigerant in the refrigerator refrigeration circuit 210 is cooled and then refrigerated in the vehicle refrigerator refrigeration system 500, and heat dissipation of the vehicle refrigerator refrigeration system 500 is achieved. The cooling liquid with absorbed heat and higher temperature flows through the heat dissipation flow channel 110 of the cooling heat exchanger 100, and the cooling liquid in the heat dissipation flow channel 110 is cooled by the cold air generated by the refrigeration end 120 of the air conditioner refrigeration system of the vehicle air conditioner. Thus, the cooling liquid in the circulating heat dissipation passage can continuously maintain a low temperature state to continuously dissipate heat for the refrigerator refrigeration circuit 210, improve the heat dissipation efficiency of the vehicle refrigerator refrigeration system 500, and further improve the refrigeration effect of the vehicle refrigerator refrigeration system 500, and reduce the refrigeration time.

[0066] As Figure 1 , Figure 2 shown, further, the refrigeration end 120 of the vehicle air conditioner of the embodiment includes an air conditioner refrigeration circuit 121, which is arranged in the cooling heat exchanger 100. By arranging the air conditioner refrigeration circuit 121 and the heat dissipation flow channel 110 in the cooling heat exchanger 100, the air conditioner refrigeration system and the circulating heat dissipation passage share one heat sink structure, thereby reducing the heat sink structure and production cost, and directly conducting heat in one heat exchanger, thereby improving the heat dissipation efficiency. It is easy to think that the cooling heat exchanger 100 is arranged separately from the refrigeration end 120 of the vehicle air conditioner, and the cooling heat exchanger 100 is arranged on the refrigeration end 120 to exchange heat with the refrigeration end 120. In this way, the complete vehicle air conditioner is installed first, and then the cooling heat exchanger 100 is assembled, which can also achieve the corresponding function to solve the technical problems.

[0067] As Figure 1 , Figure 2As shown, further, the cooling heat exchanger 100 in the embodiment includes a first heat exchange core 130, the first heat exchange core 130 is provided with multiple layers of fins, the heat dissipation flow channel 110 and the air conditioner refrigeration circuit 121 are both provided in the shape of a serpentine coil, the serpentine coil-shaped heat dissipation flow channel 110 and the air conditioner refrigeration circuit 121 are arranged in the multiple layers of fins, the refrigerant in the air conditioner refrigeration circuit 121 and the cooling liquid in the heat dissipation flow channel 110 realize convective heat exchange in the multiple layers of fins of the cooling heat exchanger 100, and the cooling capacity generated by the air conditioner is used to cool the cooling liquid in the heat dissipation flow channel 110. The coil structure and the fin structure are combined, the heat dissipation paths of the heat dissipation flow channel 110 and the air conditioner refrigeration circuit 121 are improved, so that the heat dissipation flow channel 110 can be fully cooled, the cooling capacity generated by the air conditioner refrigeration circuit 121 acts on the heat dissipation flow channel 110 in close proximity, the cooling capacity utilization rate is improved, and the cooling liquid in the heat dissipation flow channel 110 is rapidly cooled, and the heat dissipation efficiency is improved.

[0068] As shown in Figure 1 , Figure 3 As shown, further, the refrigerator heat exchanger 200 in the embodiment includes a second heat exchange core 230, the refrigerator refrigeration circuit 210 includes multiple layers of refrigerator refrigeration branch circuits 211, and the heat absorption flow channel 220 includes multiple layers of heat absorption branch flow channels 221. The multiple layers of refrigerator refrigeration branch circuits 211 and the multiple layers of heat absorption branch flow channels 221 are arranged in a spaced manner. The refrigerant in the multiple layers of refrigerator refrigeration branch circuits 211 and the cooling liquid in the multiple layers of heat absorption branch flow channels 221 realize convective heat exchange in the second heat exchange core 230, and carry away the heat in the vehicle-mounted refrigerator refrigeration system 500. By arranging the multiple layers of refrigerator refrigeration branch circuits 211 and the multiple layers of heat absorption branch flow channels 221 in a spaced manner, multi-channel continuous heat conduction is realized, the heat dissipation efficiency is improved, the cooling liquid in the refrigerator refrigeration branch circuit 211 carries away more heat in the refrigerator refrigeration circuit 210, and thus the working efficiency of the refrigerant in the refrigerator refrigeration circuit 210 is improved, and the refrigeration efficiency of the vehicle-mounted refrigerator refrigeration system 500 is further improved.

[0069] As shown in Figure 1 , Figure 3 , Figure 4As shown, further, the second heat exchange core 230 in this embodiment specifically comprises: a water-cooled box shell 231, and a plurality of heat dissipation plate assemblies 240 connected in sequence in the water-cooled box shell 231. Each heat dissipation plate assembly 240 is provided with a refrigerator refrigerant branch circuit 211, which is bent in a serpentine shape in the heat dissipation plate assembly 240. The inlet end of each refrigerator refrigerant branch circuit 211 is connected to the refrigerator refrigerant inlet 234 outside the water-cooled box shell 231, and the outlet end of each refrigerator refrigerant branch circuit is connected to the refrigerator refrigerant outlet 235 outside the water-cooled box shell 231. The inlet end and the outlet end of the refrigerator refrigerant branch circuit 211 are located on opposite sides of the refrigerator refrigerant branch circuit 211, and can be located at the same height, so as to facilitate the installation of the refrigerator refrigerant inlet 234 and the refrigerator refrigerant outlet 235 with external pipelines.

[0070] As shown in Figure 1 , Figure 3 , Figure 4 As shown, the predetermined gap between adjacent heat dissipation plate assemblies 240 in this embodiment forms a heat absorption branch channel 221, the liquid inlet end of the plurality of heat absorption branch channels 221 is connected to the second cooling liquid inlet 236 outside the water-cooled box shell 231, and the liquid outlet end of the plurality of heat absorption branch channels 221 is connected to the second cooling liquid outlet 237 outside the water-cooled box shell 231. The second heat exchange core 230 is arranged in a structure in which the plurality of heat dissipation plate assemblies 240 are connected in sequence, which not only improves the water cooling efficiency, but also facilitates disassembly and maintenance. For example, the heat dissipation plate assemblies 240 are divided into individual units that can be spliced to form a heat exchanger, which not only reduces the thickness of the heat sink, but also allows the heat dissipation plate assembly 240 that leaks to be disassembled and replaced in time.

[0071] As shown in Figure 3 , Figure 4 , Figure 5 As shown, the heat dissipation plate assembly 240 in this embodiment specifically comprises: a first sealing plate 241 and a second sealing plate 242. One side of the first sealing plate 241 is provided with a first refrigeration groove, and the other side is provided with an inlet guide column 243 and an outlet guide column 244, the inlet guide column 243 is provided with an inlet through hole 245, and the outlet guide column 244 is provided with an outlet through hole 246. One side of the second sealing plate 242 is provided with a second refrigeration groove, and the other side is provided with an inlet hole 247 and an outlet hole 248. The first refrigeration groove and the second refrigeration groove are connected to form a refrigerator refrigerant branch circuit 211 by abutting the first sealing plate 241 and the second sealing plate 242, the inlet hole 247 is connected to the refrigerator refrigerant branch circuit 211, and the outlet hole 248 is connected to the refrigerator refrigerant branch circuit 211. The first sealing plate 241 and the second sealing plate 242 can be fixed by edge welding, or can be fixed by filling a sealing ring and penetrating a screw fastener.

[0072] As shown in Figure 3 ,Figure 4 , Figure 5 As shown, in two adjacent heat sink assemblies 240, the inlet guide post 243 and the outlet guide post 244 of one heat sink assembly 240 are respectively connected to the other heat sink assembly 240, thereby forming a heat absorption branch channel 221 through the gap supported by the lengths of the inlet guide post 243 and the outlet guide post 244. Specifically, the inlet guide post 243 and the outlet guide post 244 are located on the same surface of the heat sink assembly 240. When connected to another heat sink assembly 240, sealing rings are provided on the end faces of both the inlet guide post 243 and the outlet guide post 244 to seal the gap at the joint. Alternatively, it is readily apparent that to improve sealing, the inlet guide post 243 and the outlet guide post 244 can also be welded to the other heat sink assembly 240. When two adjacent heat sink assemblies 240 are fixedly connected via inlet guide post 243 and outlet guide post 244, the inlet through hole 245 and outlet through hole 246 of one heat sink assembly 240 are respectively connected to the inlet hole 247 and outlet hole 248 of the other heat sink assembly 240, so that the inlet ends of each cooling branch are connected and the outlet ends of each cooling branch are connected. A heat absorption branch channel 221 is formed by splicing the first sealing plate 241 and the second sealing plate 242. The inlet guide post 243 and outlet guide post 244 of one heat sink assembly 240 are respectively connected to the other heat sink assembly 240, thus forming the heat absorption branch channel 221 through the inlet guide post 243 and outlet guide post 244. In this way, two pathways are set up using only a plate structure, and the two pathways are completely separated, each performing its own function without interference. The entire surface of the first sealing plate 241 and the second sealing plate 242 exchanges heat with the coolant, thereby improving heat dissipation efficiency.

[0073] like Figure 3 , Figure 4 , Figure 5As shown, in order to realize the detachable assembly structure of the heat dissipation plate assembly 240, the water-cooled box shell 231 mainly comprises a box body 232 and a box cover 233. For the convenience of structural description, the box body 232 is a square box body 232 and thus has six sides of front and back, left and right, and up and down. One side in the left-right direction is open to form an opening. The box cover 233 is detachably connected to the opening through screws. A sealing ring is arranged at the connection position so as to prevent water leakage. A sealing member is also arranged on the inside of the box body 232, so as to seal the inlet guide column 243 and the outlet guide column 244 of the innermost heat dissipation plate assembly 240. An extrusion column is arranged on the inner wall of the box cover 233. The extrusion column is provided with a hole (similar to the structure of the inlet guide column 243 and the outlet guide column 244). The heat dissipation plate assembly 240 at the outermost layer is connected to the extrusion column. The hole of the extrusion column is connected to the inlet hole 247 (the outlet hole 248) and the refrigerator refrigerant inlet 234 (the refrigerator refrigerant outlet 235). The water inlet space 238 is formed above the heat dissipation plate assembly 240, and the water outlet space 239 is formed below the heat dissipation plate assembly 240. The second cooling liquid inlet 236 is located above the box body 232 and is connected to the water inlet space 238. The second cooling liquid outlet 237 is located below the box body 232 and is connected to the water outlet space 239. The heat absorption branch channel 221 is formed in the middle. In this way, the cooling liquid input from the upper part can directly pass through the heat absorption branch channel 221 and enter the lower part, forming a circulating heat absorption.

[0074] As shown in Figure 1 , Figure 6 Further, the liquid storage member 400 in the embodiment comprises an expansion kettle 410 arranged on the condensate water receiving tray 430. The expansion kettle 410 is provided with a water collecting tray 420. The water collecting tray 420 is provided with a water falling hole 421. The air conditioner condensate water collected by the water collecting tray 420 is guided to the expansion kettle 410 through the water falling hole 421 to cool the expansion kettle 410. In the specific structure, the water collecting tray 420 can be supported above the expansion kettle 410 by a support. The water collecting tray 420 can be in the shape of a funnel, so as to realize efficient water collection and flow guiding. The vehicle-mounted air conditioner generates condensate water during use. The temperature of the condensate water is low. Therefore, the air conditioner condensate water collected by the water collecting tray 420 is guided to the expansion kettle 410 through the water falling hole 421. When the cooled cooling liquid enters the expansion kettle 410, the external air conditioner condensate water can also cool the cooling liquid, so that the cooled cooling liquid is cooled once again when passing through the refrigeration end 120 of the vehicle-mounted air conditioner, thereby reducing the influence on the refrigeration effect of the vehicle-mounted air conditioner compared with the heat dissipation only through the refrigeration end 120 of the vehicle-mounted air conditioner.

[0075] The specific working process of the embodiment is as follows:

[0076] The cooling liquid in the circulating heat dissipation passage passes through the heat absorbing flow channel 220 in the refrigerator heat exchanger 200, and performs convective heat exchange with the refrigerator refrigeration circuit 210 of the vehicle-mounted refrigerator refrigeration system 500 in the refrigerator heat exchanger 200, absorbs the heat in the refrigerator refrigeration circuit 210, the temperature of the cooling liquid is raised, the cooling liquid flows out of the refrigerator heat exchanger 200, passes through the liquid storage member 400, and then passes through the heat dissipation flow channel 110 of the cooling heat exchanger 100, and exchanges heat with the refrigeration end 120 (air conditioner refrigeration circuit 121) of the vehicle-mounted air conditioning system in the cooling heat exchanger 100, and the heat of the cooling liquid in the heat dissipation flow channel 110 is taken away by the refrigerant in the air conditioner refrigeration circuit 121, so that the purpose of heat dissipation is achieved, the temperature of the cooling liquid in the circulating heat dissipation passage is lowered, and the cooling liquid flows through the cooling pump 300 after passing through the cooling heat exchanger 100. The pumping action of the cooling pump 300 causes the low-temperature cooling liquid to pass through the refrigerator heat exchanger 200 again. Thus, the heat exchange between the refrigerant and the cooling liquid is completed in one cycle, the heat in the vehicle-mounted refrigerator refrigeration system 500 is successfully dissipated into the vehicle-mounted air conditioning system by the water cooling method, and the cooling pump 300 is controlled to circulate and continuously dissipate heat.

[0077] Embodiment Two

[0078] As shown in Figure 7 , the application also provides a control method of a vehicle-mounted refrigerator, which is applied to the water-cooled vehicle-mounted refrigerator based on the automobile air conditioner as described above, and mainly includes the following steps:

[0079] Step S100, an instruction to start the refrigerator is obtained, and when the vehicle-mounted air conditioner is in an open state, the cooling pump is started.

[0080] In the specific process, when the user issues an instruction to start the refrigerator and requests to start the refrigerator, it is judged whether the vehicle-mounted air conditioner is started to refrigerate, and if not, the vehicle-mounted air conditioner is requested to be started to refrigerate. When the vehicle-mounted air conditioner is in an open state, it is further judged whether the cooling pump is started, and if not, the cooling pump is controlled to be started, and the control of each electronic device in the circulating heat dissipation passage is completed.

[0081] In addition, as shown in Figure 7 , Figure 8 , step S100 specifically includes:

[0082] Step S110, an instruction to start the refrigerator is obtained.

[0083] Step S120, the outdoor temperature is detected, and the outdoor temperature is compared with the first preset outdoor temperature.

[0084] Step S130, when the outdoor temperature is less than or equal to the first preset outdoor temperature, the indoor fan of the vehicle-mounted air conditioner is started.

[0085] Step S140, when the outdoor temperature is greater than the first preset outdoor temperature, starting the vehicle air conditioner to cool.

[0086] In the above specific process, different use states of the vehicle refrigerator can be realized according to different outdoor temperatures or seasons. For example, the first preset outdoor temperature can be 10 degrees Celsius, so that it is judged that it is winter and the temperature in the vehicle needs to be maintained without cooling by the air conditioner. Therefore, especially in the case of using the vehicle air conditioner in winter, only the indoor fan of the vehicle air conditioner can be started to blow out the heat in the heat dissipation flow channel in the cooling heat exchanger, which not only achieves the purpose of heat dissipation, but also provides heating for the vehicle, saving energy.

[0087] Step S200, starting the compressor of the vehicle refrigerator to cool the vehicle refrigerator.

[0088] Step S300, detecting the cooling temperature of the vehicle refrigerator, and when the cooling temperature does not reach the preset temperature, controlling the rotation speed of the compressor and the rotation speed of the cooling pump to continuously cool to the preset temperature.

[0089] In the specific process, the temperature (cooling temperature) of the inner container of the vehicle refrigerator is collected and compared with the preset temperature set by the user. Further, if the temperature (cooling temperature) of the inner container approaches or equals the preset temperature set by the user, the rotation speed of the cooling pump and the power of the compressor are reduced until the temperature of the inner container of the refrigerator system reaches the temperature set by the user. If the temperature (cooling temperature) of the inner container is greater than or much greater than the preset temperature set by the user, the rotation speed of the cooling pump and the power of the compressor are increased to achieve the purpose of rapid cooling of the refrigerator system.

[0090] Embodiment Three

[0091] The application also provides a vehicle, comprising a vehicle body and the water-cooled vehicle refrigerator based on the automobile air conditioner.

[0092] In summary, the application provides a water-cooled vehicle refrigerator based on the automobile air conditioner, a control method and a vehicle, which uses the cold energy of the refrigeration end of the vehicle air conditioner system to dissipate heat for the air compressor refrigeration system in a water-cooled manner, improves the heat exchange capacity and efficiency, and thus realizes the refrigeration function of the vehicle refrigerator system. The water-cooled manner replaces the traditional fan cooling, and does not produce the problem of resonance and booming sound with the compressor during work. The hot air is not generated in high-temperature weather, and the passengers in the vehicle have a more comfortable use experience.

[0093] The above embodiments are only preferred embodiments for fully illustrating the application, and the protection scope of the application is not limited thereto. Any equivalent replacement or transformation of the application made by those skilled in the art based on the application is within the protection scope of the application.

Claims

1. A water-cooled vehicle refrigerator based on a vehicle air conditioner, for being connected with a vehicle air conditioner, characterized in that, The water-cooled vehicle-mounted refrigerator comprises: a cooling heat exchanger for being arranged at a refrigeration end of the vehicle-mounted air conditioner, the cooling heat exchanger being provided with a heat dissipation flow channel; a refrigerator heat exchanger provided with a refrigerator refrigeration circuit and a heat absorption flow channel; a cooling pump connected to the heat absorption flow channel and the heat dissipation flow channel; a liquid storage member connected between the heat absorption flow channel and the heat dissipation flow channel; the cooling pump, the liquid storage member, the heat absorption flow channel and the heat dissipation flow channel are connected to form a circulating heat dissipation passage, cooling liquid in the circulating heat dissipation passage is cooled by the refrigeration end of the vehicle-mounted air conditioner in the cooling heat exchanger and absorbs heat of the refrigerator refrigeration circuit in the refrigerator heat exchanger; the refrigerator heat exchanger comprises a second heat exchange core, the refrigerator refrigeration circuit comprises a plurality of layers of refrigerator refrigeration branches, and the heat absorption flow channel comprises a plurality of layers of heat absorption sub-flow channels; the plurality of layers of refrigerator refrigeration branches and the plurality of layers of heat absorption sub-flow channels are arranged at intervals; the second heat exchange core comprises a water-cooled box shell, and a plurality of heat dissipation plate assemblies are sequentially connected in the water-cooled box shell; each heat dissipation plate assembly is provided with the refrigerator refrigeration branch, an inlet end of each refrigerator refrigeration branch is connected to a refrigerator refrigerant inlet outside the water-cooled box shell, and an outlet end of each refrigerator refrigeration branch is connected to a refrigerator refrigerant outlet outside the water-cooled box shell; a predetermined gap is formed between adjacent heat dissipation plate assemblies to form the heat absorption sub-flow channel, a liquid inlet end of each heat absorption sub-flow channel is connected to a second cooling liquid inlet outside the water-cooled box shell, and a liquid outlet end of each heat absorption sub-flow channel is connected to a second cooling liquid outlet outside the water-cooled box shell; each heat dissipation plate assembly is an individual that can be spliced in the water-cooled box shell.

2. The water-cooled in-vehicle refrigerator based on an automotive air conditioner according to claim 1, characterized by The refrigeration end of the vehicle-mounted air conditioner comprises an air conditioner refrigeration circuit arranged in the cooling heat exchanger.

3. The water-cooled in-vehicle refrigerator based on an automotive air conditioner according to claim 2, characterized by The cooling heat exchanger comprises a first heat exchange core provided with a plurality of layers of heat dissipation fins; the heat dissipation flow channel and the air conditioner refrigeration circuit are arranged in the form of a serpentine coil, and the heat dissipation flow channel and the air conditioner refrigeration circuit in the form of a serpentine coil are arranged in the plurality of layers of heat dissipation fins.

4. The water-cooled in-vehicle refrigerator based on an automotive air conditioner according to claim 3, characterized by The heat dissipation plate assembly comprises a first sealing plate provided with a first refrigeration groove on one side and an inlet guide column and an outlet guide column on the other side, the inlet guide column is provided with an inlet through hole, and the outlet guide column is provided with an outlet through hole; a second sealing plate provided with a second refrigeration groove on one side and an inlet hole and an outlet hole on the other side; the first sealing plate and the second sealing plate are opposite to each other to connect the first refrigeration groove and the second refrigeration groove to form the refrigerator refrigeration branch, the inlet hole is connected to the refrigerator refrigeration branch, and the outlet hole is connected to the refrigerator refrigeration branch; in two adjacent heat dissipation plate assemblies: the inlet guide column and the outlet guide column of one heat dissipation plate assembly are connected to the other heat dissipation plate assembly, respectively, so that a gap supported by the length of the inlet guide column and the outlet guide column forms the heat absorption sub-flow channel. The inlet through hole and the outlet through hole of one of the heat dissipation plate assemblies are connected with the inlet hole and the outlet hole of another of the heat dissipation plate assemblies respectively, so that the inlet end of each of the refrigeration branches is communicated and the outlet end of each of the refrigeration branches is communicated.

5. The water-cooled in-vehicle refrigerator based on an automotive air conditioner according to claim 1, characterized by The liquid storage member comprises an expansion kettle, and the expansion kettle is arranged on a condensate water receiving tray. The expansion kettle is provided with a water collecting tray, and a water falling hole is formed in the lower portion of the water collecting tray.

6. A control method of a vehicle-mounted refrigerator, characterized by, The control method applied to the water-cooled vehicle-mounted refrigerator based on the vehicle air conditioner according to any one of claims 1-5 comprises the steps of: When the vehicle-mounted air conditioner is in the on state, the cooling pump is started; The compressor of the vehicle-mounted refrigerator is turned on, and the vehicle-mounted refrigerator is refrigerated; The refrigeration temperature of the vehicle-mounted refrigerator is detected, and when the refrigeration temperature does not reach a preset temperature, the rotation speed of the compressor and the rotation speed of the cooling pump are controlled to continuously cool to the preset temperature.

7. The control method of the in-vehicle refrigerator according to claim 6, characterized by, In the step of starting the cooling pump when the air conditioner is in the on state: The outdoor temperature is detected, and the outdoor temperature is compared with a first preset outdoor temperature; When the outdoor temperature is less than or equal to the first preset outdoor temperature, the indoor unit fan of the vehicle-mounted air conditioner is started; When the outdoor temperature is greater than the first preset outdoor temperature, the vehicle-mounted air conditioner is started to refrigerate.

8. A vehicle characterized by comprising: Comprise: A vehicle body, a vehicle-mounted air conditioner, and a water-cooled vehicle-mounted refrigerator based on the vehicle air conditioner according to any one of claims 1-5.

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