Air-cooling and direct-cooling dual-system vehicle-mounted refrigerator

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to an air-cooling and direct-cooling dual-system vehicle-mounted refrigerator. A heat preservation inner container is arranged at the lower end of the single-door box frame and is of a 7-shaped structure. The air-cooling assembly is arranged on the lower surface of the convex part at the front end of the insulation liner; the refrigeration assembly is arranged at the rear end of the heat preservation inner container. The compressor is fixed to a triangular frame at the rear end of the heat preservation inner container and connected with the condenser arranged at the upper end, the condenser is connected with the electromagnetic valve fixed to the left side through the drying filter distributed on the right side, and the electromagnetic valve is connected with the direct cooling evaporator and the air cooling evaporator through the first capillary tube and the second capillary tube respectively. The direct cooling evaporator is embedded on the outer side of the heat preservation liner; the air-cooled evaporator is connected with the lower surface of the convex part at the front end of the heat-preservation liner through a diversion fan at the top; the tail portion of the direct cooling evaporator and the tail portion of the air cooling evaporator are connected to the gas-liquid separator, and the gas-liquid separator is connected with the compressor to achieve refrigerant backflow.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted refrigerators, and in particular relates to a direct-air cooling dual-system vehicle-mounted refrigerator. Background Art

[0002] At present, there is no dual refrigeration system in car refrigerators that can work with direct cooling and air cooling at the same time. So far, car refrigerators have only used a single refrigeration system of refrigeration or air cooling. The advantage of using a dual system of air direct cooling is that when the refrigerator detects that there is a load, the dual systems work at the same time, which can greatly increase the cooling speed. When the refrigerator detects that the door is opened, the direct cooling system works alone, and then the air cooling system and the guide fan in the air cooling system are turned off, which will reduce the noise. The traditional car refrigerator uses a single direct cooling system. The cooling speed is slow, or the single air cooling system will also greatly reduce the user experience because of the noise generated by the guide fan when the door is opened. Since the direct cooling refrigeration system relies on the evaporator on the refrigerator liner to transfer cold, for medicines with too high temperature requirements, the direct cooling system cannot make all sides of the medicine cool evenly, while the air cooling system relies on the guide fan to guide the cold air into the box, so it will make all sides of the medicine cool more evenly. Utility Model Content

[0003] In order to solve the defects and shortcomings of the prior art; the purpose of the utility model is to provide a car refrigerator with a direct air cooling dual system which has a simple structure, a reasonable design and is easy to use. It adopts a direct air cooling system in parallel to form a dual-circulation refrigeration system. The direct cooling evaporator and the air cooling evaporator can be controlled simultaneously or separately without interfering with each other; it solves the problems of uneven cooling transfer of a single direct cooling system in a car refrigerator, the noise generated by the guide fan in a single air cooling system and the slow cooling speed of a single refrigeration system.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: it comprises a single-door box frame, a heat-insulating liner, an air-cooling component, a direct-cooling component, and a refrigeration component; the lower end of the single-door box frame is provided with a heat-insulating liner, and the heat-insulating liner is a 7-shaped structure; the air-cooling component is arranged on the lower surface of the outer protrusion at the front end of the heat-insulating liner; the refrigeration component is arranged at the rear end of the heat-insulating liner; wherein the refrigeration component comprises a compressor, a condenser, a heat-dissipating fan, a drying filter, an electromagnetic valve, a first capillary tube, a second capillary tube, a direct-cooling evaporator, an air-cooling evaporator, and a gas-liquid separator; the compressor The compressor is fixed on the triangular frame at the rear end of the thermal insulation inner tank, the compressor is connected to the condenser arranged at the upper end, the condenser is connected to the solenoid valve fixed on the left side through the drying filter distributed on the right side, the solenoid valve is connected to the direct cooling evaporator and the air cooling evaporator through the first capillary and the second capillary respectively, the direct cooling evaporator is embedded in the outside of the thermal insulation inner tank; the air cooling evaporator is connected to the lower surface of the outer protrusion at the front end of the thermal insulation inner tank through the guide fan at the top; the tails of the direct cooling evaporator and the air cooling evaporator are connected to the gas-liquid separator, and the gas-liquid separator is connected to the compressor to realize the refrigerant reflux.

[0005] Preferably, the air-cooling component is composed of an air-cooling evaporator and a guide fan, and the guide fan is connected to the interior of the thermal insulation tank through a circulation channel to circulate cold air.

[0006] Preferably, the direct cooling component comprises two parts, an aluminum tube and an aluminum plate; a plate-tube evaporator composed of the aluminum tube and the aluminum plate is embedded on the outside of the thermal insulation liner; and cold air is introduced into the box.

[0007] Preferably, the refrigeration components are fixed inside the triangular frame, the condenser is cooled by the cooling fan below, the first and second capillaries are controlled by solenoid valves, and an exhaust fan is provided on one side of the bottom of the triangular frame.

[0008] Preferably, the exhaust fan is connected to the automobile ventilation system via a connecting pipe to realize an external exhaust heat dissipation structure.

[0009] After adopting the above structure, the beneficial effects of the utility model are as follows: it adopts the air direct cooling system in parallel to form a dual-circulation refrigeration system, and the direct cooling evaporator and the air-cooled evaporator can be controlled simultaneously or separately without interfering with each other; it solves the problems of uneven cooling transfer of the single direct cooling system in the current car refrigerator, the noise generated by the guide fan in the single air cooling system, and the slow cooling speed of the single refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model is described in detail through the following specific implementations and drawings.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a side structural schematic diagram of the utility model;

[0013] Figure 3 It is a schematic diagram of the back structure of the utility model;

[0014] Figure 4 It is a rear view of the utility model;

[0015] Explanation of the accompanying drawings: single-door box frame 1, thermal insulation liner 2, air-cooling component 3, direct cooling component 4, refrigeration component 5, liner base 6, triangular frame 7, exhaust fan 8, compressor 51, condenser 52, heat dissipation fan 53, drying filter 54, solenoid valve 55, first capillary tube 56, second capillary tube 57, gas-liquid separator 58, air-cooled evaporator 31, guide fan 32, plate and tube evaporator 41. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0017] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0018] See Figure 1-Figure 4As shown, this specific embodiment adopts the following technical scheme: it includes a single-door box frame 1, an insulation liner 2, an air-cooling component 3, a direct cooling component 4, a refrigeration component 5, a liner bottom support 6, a triangular frame 7, and an exhaust fan 8; the lower end of the single-door box frame 1 is provided with an insulation liner 2, and the insulation liner 2 is a 7-shaped structure; the air-cooling component 3 is arranged on the lower surface of the outer protrusion at the front end of the insulation liner 2; the plate-tube evaporator 41 of the direct cooling component 4 is embedded on the outer side of the insulation liner 2; the refrigeration component 5 is arranged at the rear end of the insulation liner 2; wherein the refrigeration component 5 includes a compressor 51, a condenser 52, a heat dissipation fan 53, a drying filter 54, an electromagnetic valve 55, a first capillary 56, a second capillary 57, a gas-liquid separation 58; the compressor 51 is fixed on the triangular frame 7 at the rear end of the thermal insulation inner tank 2, the compressor 51 is connected to the condenser 52 arranged at the upper end, the condenser 52 is connected to the solenoid valve 55 fixed on the left side through the drying filter 54 distributed on the right side, the solenoid valve 55 is connected to the direct cooling evaporator 41 and the air cooling evaporator 31 through the first capillary 56 and the second capillary 57 respectively, the direct cooling evaporator 41 is embedded in the outside of the thermal insulation inner tank 2; the air cooling evaporator 31 is connected to the lower surface of the outer protrusion at the front end of the thermal insulation inner tank 2 through the guide fan 32 at the top; the tails of the direct cooling evaporator 41 and the air cooling evaporator 31 are connected to the gas-liquid separator 58, and the gas-liquid separator 58 is connected to the compressor 51 to realize the refrigerant reflux.

[0019] Among them, the air-cooling component 3 is composed of an air-cooling evaporator 31 and a guide fan 32. The guide fan 32 is connected to the inside of the thermal insulation liner 2 through a circulation channel to circulate cold air; the direct cooling component 4 includes two parts, an aluminum tube and an aluminum plate. The plate-tube evaporator 41 composed of the aluminum tube and the aluminum plate is embedded in the outside of the thermal insulation liner 2 to guide the cold air into the box; the bottom of the thermal insulation liner 2 is provided with an inner liner bottom support 6, and the inner liner bottom support 6 is composed of multiple layers of rubber insulation pads.

[0020] In addition, the refrigeration components 5 are fixed inside the triangular frame 7, and an exhaust fan 8 is provided on one side of the bottom of the triangular frame 7; the exhaust fan 8 is connected to the automobile ventilation system through a connecting pipe to realize an external heat dissipation structure.

[0021] The working principle of this specific embodiment is: two systems are connected in parallel to form a dual-cycle refrigeration system, wherein the direct cooling evaporator and the air cooling evaporator can be controlled simultaneously or separately without interfering with each other; a solenoid valve is provided after the drying filter is connected to the end of the condenser; the outlet of the solenoid valve is respectively connected to the first capillary tube and the second capillary tube, the first capillary tube is connected to the direct cooling evaporator, and the second capillary tube is connected to the air cooling evaporator, and the solenoid valve can control the on and off of the direct cooling flow path and the air cooling flow path;

[0022] When the refrigerator detects that there is a load, the solenoid valve connects the first capillary and the second capillary. At this time, the system refrigerant passes through the two evaporators of direct cooling and air cooling to quickly cool down the refrigerator; when the refrigerator detects that the door is opened, the solenoid valve connects the first capillary and closes the second capillary. At this time, the system refrigerant only circulates in the direct cooling evaporator and does not pass through the air cooling evaporator, and the guide fan will also be closed at the same time; when the refrigerator is to store objects with high temperature requirements, the solenoid valve connects the second capillary and closes the first capillary. At this time, the refrigerant only passes through the air cooling evaporator and does not pass through the direct cooling evaporator; the ends of the direct cooling evaporator and the air cooling evaporator are connected to the gas-liquid separator through a tee to solve the problem of different amounts of refrigerant required for direct cooling or air cooling, and the storage of excess refrigerant in the system.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-system car refrigerator with direct air cooling, characterized in that: It comprises a single-door box frame, a heat-insulating liner, an air-cooling component, a direct-cooling component and a refrigeration component; the lower end of the single-door box frame is provided with a heat-insulating liner, and the heat-insulating liner is a 7-shaped structure; the air-cooling component is arranged on the lower surface of the outer protrusion at the front end of the heat-insulating liner; the plate-tube evaporator of the direct-cooling component is embedded on the outer side of the heat-insulating liner; the refrigeration component is arranged at the rear end of the heat-insulating liner; wherein the refrigeration component comprises a compressor, a condenser, a heat-dissipating fan, a drying filter, an electromagnetic valve, a first capillary tube, a second capillary tube, a direct-cooling evaporator, an air-cooling evaporator and a gas-liquid separator; the compressor The compressor is fixed on the triangular frame at the rear end of the thermal insulation inner tank, the compressor is connected to the condenser arranged at the upper end, the condenser is connected to the solenoid valve fixed on the left side through the drying filter distributed on the right side, the solenoid valve is connected to the direct cooling evaporator and the air cooling evaporator through the first capillary and the second capillary respectively, the direct cooling evaporator is embedded in the outside of the thermal insulation inner tank; the air cooling evaporator is connected to the lower surface of the outer protrusion at the front end of the thermal insulation inner tank through the guide fan at the top; the tails of the direct cooling evaporator and the air cooling evaporator are connected to the gas-liquid separator, and the gas-liquid separator is connected to the compressor to realize the refrigerant reflux.

2. The air direct cooling dual system vehicle refrigerator according to claim 1, characterized in that: The air-cooling component is composed of an air-cooling evaporator and a guide fan. The guide fan is connected to the inside of the heat-insulating inner tank through a circulation channel to circulate cold air.

3. The air direct cooling dual system vehicle refrigerator according to claim 2, characterized in that: The direct cooling component comprises two parts, an aluminum tube and an aluminum plate. A plate-tube evaporator composed of the aluminum tube and the aluminum plate is embedded on the outer side of the heat-insulating inner container.

4. The air direct cooling dual system vehicle refrigerator according to claim 3, characterized in that: The refrigeration components are all fixed inside the triangular frame, the condenser is cooled by the cooling fan below, the first and second capillaries are controlled by the electromagnetic valve, and an exhaust fan is arranged on one side of the bottom of the triangular frame.

5. The air direct cooling dual system vehicle refrigerator according to claim 4, characterized in that: The exhaust fan is connected to the automobile ventilation system through a connecting pipe to realize an external exhaust heat dissipation structure.

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