A vehicle refrigerator without independent compressor

Abstract

The present invention relates to the technical field of vehicle refrigerators, and in particular to a vehicle refrigerator without an independent compressor; the vehicle refrigerator comprises a box body, a door body is installed on the box body, the box body comprises an outer shell body for heat preservation and an inner shell body arranged in the outer shell body, the inner shell body and the door body form a heat preservation chamber, a refrigerator evaporator fitted with the inner shell body is arranged between the inner shell body and the outer shell body, a cooling pipe for the circulation of refrigerant is arranged in the box body, the cooling pipe comprises an inlet pipe and an outlet pipe, one end of the inlet pipe and the outlet pipe are respectively connected to two ports of the refrigerator evaporator, and the other ends of the inlet pipe and the outlet pipe are respectively connected to the air-conditioning refrigerant delivery pipeline of the vehicle, and a centrifugal fan system is arranged in the box body; the present invention does not need to install an independent compressor, can greatly reduce the weight, power consumption and manufacturing cost of the vehicle refrigerator, and reduce the vibration and noise generated after the vehicle refrigerator is installed, and avoids heat accumulation; the centrifugal fan system is designed to circulate air flow and accelerate the refrigeration efficiency of the refrigerator.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle refrigerators, and in particular to a vehicle refrigerator without an independent compressor. Background Art

[0002] Car refrigerators have become a common device for people to keep food fresh, refrigerate medicines or drinks while using vehicles. They are mostly used in long-distance travel, outdoor camping and daily life. However, most traditional car refrigerators require the use of independent compressors for refrigeration. Although this design can effectively cool the inside of the refrigerator, there are also some problems. For example, the compressor and related piping system are large in size and take up a lot of space, which is not conducive to use in the limited space in the car; and the compressor consumes a lot of electricity when working, which increases the battery burden of the vehicle, especially when used for a long time; on the other hand, the compressor will generate mechanical noise when running, and the car refrigerator needs to be installed in the car or in the trunk, which will affect the quietness and ride comfort of the car. The compressor refrigeration system is relatively complex, the production cost is high, and it is difficult to repair after a failure, and the maintenance cost is also high; and the compressor needs to discharge the heat energy while absorbing the heat energy to cool down, and the car refrigerator installed in the car will inevitably have a local temperature rise at the installation location. Working in a high temperature environment for a long time will greatly shorten the life of the car refrigerator. Summary of the invention

[0003] The purpose of the present invention is to provide a reasonably designed vehicle refrigerator without an independent compressor in view of the defects and shortcomings of the prior art, which can solve the above-mentioned defects.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it includes a box body, a door body is installed on the box body, the box body includes an outer shell body for insulation and an inner shell body arranged in the outer shell body, the inner shell body and the door body form an insulation chamber, a refrigerator evaporator is provided between the inner shell body and the outer shell body and is fitted with the inner shell body, a cooling pipe for the circulation of refrigerant is provided in the box body, the cooling pipe includes an inlet pipe and an outlet pipe, one end of the inlet pipe and the outlet pipe are respectively connected to the two ports of the refrigerator evaporator, and the other ends of the inlet pipe and the outlet pipe are respectively connected to the air-conditioning refrigerant delivery pipeline of the vehicle, and a centrifugal fan system is provided in the box body.

[0005] Preferably, the centrifugal fan system includes a fan mounting base installed in a box body, a centrifugal fan is arranged in the fan mounting base, air duct pipes connected to the interior of the fan mounting base are respectively arranged on both sides of the fan mounting base, and air outlet ports of the air duct pipes are respectively arranged on the inner walls on both sides of the inner shell of the box body.

[0006] Preferably, a temperature sensor is installed in the fan mounting seat.

[0007] Preferably, a decorative cover is installed on the top of the fan mounting seat, and an air inlet is opened on the decorative cover directly above the centrifugal fan.

[0008] Preferably, the centrifugal fan is provided with a fan cover, the shapes of two sides of the fan cover match the shapes of the air inlet of the air duct pipe, and the fan cover and the two air duct pipes form an air duct.

[0009] Preferably, a regulating valve for regulating the flow of the refrigerant is installed in the cooling pipe.

[0010] Preferably, after the cooling pipe is connected to the air-conditioning refrigerant delivery pipeline of the vehicle, the pipeline formed by the inlet pipe, the outlet pipe and the refrigerator evaporator is connected in parallel with the pipeline in the air-conditioning evaporator assembly of the vehicle.

[0011] After adopting the above structure, the beneficial effects of the present invention are: The present invention does not require the installation of an independent compressor. Compared with ordinary car refrigerators, the weight, power consumption and manufacturing cost of the car refrigerator can be greatly reduced, and the vibration and noise generated after the car refrigerator is installed can be reduced. Moreover, the heat energy of the car refrigerator is transferred to the air-conditioning compressor of the vehicle and then discharged. The car refrigerator itself does not generate heat, thereby eliminating the local heat accumulation phenomenon after installation.

[0012] The present invention designs a centrifugal fan system to automatically circulate airflow inside the refrigerator, so as to make heat energy absorption more efficient and improve the refrigeration efficiency of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the present invention; Figure 2 It is a structural exploded diagram of the present invention; Figure 3 is an exploded view of the centrifugal fan system of the present invention; Figure 4 It is a schematic diagram of the structure of the present invention when it is opened; Figure 5 It is a schematic diagram of the installation method of the centrifugal fan system in the present invention.

[0014] Description of reference numerals: 1. Centrifugal fan system; 1-1. Decorative cover; 1-2. Fan cover; 1-3. Centrifugal fan; 1-4. Temperature sensor; 1-5. Fan mounting seat; 1-6. Air duct; 2. Door body; 3. Refrigerator evaporator; 4. Regulating valve; 5. Cooling pipe; 6. Box body. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 4 As shown, it includes a box body 6, on which a door body 2 is installed, the box body 6 includes an outer shell for insulation and an inner shell arranged in the outer shell, the inner shell and the door body 2 form an insulation chamber, a refrigerator evaporator 3 is provided between the inner shell and the outer shell and is fitted with the inner shell, a cooling pipe 5 for the circulation of refrigerant is provided in the box body 6, the cooling pipe 5 includes an inlet pipe and an outlet pipe, one end of the inlet pipe and the outlet pipe are respectively connected to the two ports of the refrigerator evaporator 3, and the other ends of the inlet pipe and the outlet pipe are respectively connected to the air-conditioning refrigerant delivery pipeline of the vehicle, a centrifugal fan system 1 is provided in the box body 6, and a regulating valve 4 for adjusting the flow of refrigerant is installed in the cooling pipe 5; after the cooling pipe 5 is connected to the air-conditioning refrigerant delivery pipeline of the vehicle, the pipeline formed by the inlet pipe, the outlet pipe and the refrigerator evaporator 3 is connected in parallel with the pipeline in the air-conditioning evaporator assembly of the vehicle.

[0017] See also Figure 1-Figure 5 As shown, the centrifugal fan system 1 includes a fan mounting base 1-5 installed in a box body 6, a centrifugal fan 1-3 is arranged in the fan mounting base 1-5, and air duct pipes 1-6 connected to the interior thereof are respectively arranged on both sides of the fan mounting base 1-5, and the air outlet ports of the air duct pipe 1-6 are respectively arranged on the inner walls on both sides of the inner shell of the box body 6; a temperature sensor 1-4 is installed in the fan mounting base 1-5; a decorative cover 1-1 is installed on the top of the fan mounting base 1-5, and an air inlet is opened on the decorative cover 1-1 directly above the centrifugal fan 1-3; a fan cover 1-2 is arranged on the centrifugal fan 1-3, and the shapes of the two sides of the fan cover 1-2 match the shapes of the air inlet of the air duct pipe, and the fan cover 1-2 and the two air duct pipes form an air duct.

[0018] Principle and use process of the present invention: During installation, the vehicle refrigerator is assembled and installed, and then the cooling pipe 5 is installed and connected in the pipeline of the original air-conditioning compressor of the vehicle through a three-way connector, so that the cooling pipeline of the vehicle refrigerator in this solution is connected in parallel with the air-conditioning refrigerant delivery pipeline of the vehicle. After the compressor works, part of the refrigerant enters the refrigerator evaporator 3, and the vehicle refrigerator starts to work. The flow rate and flow of the refrigerant entering the refrigerator evaporator 3 are adjusted by the regulating valve 4, so as to control the refrigeration intensity of the vehicle refrigerator; the fan cover 1-2 and the fan mounting seat 1-5 form a relatively closed wind cavity, The decorative cover 1-1 serves as a decorative part to improve the aesthetics and provides an air inlet. The centrifugal fan 1-3 draws air from the top, so that the air pressure inside the air cavity rises rapidly, thereby forcing the air flow to be discharged from the air ducts 1-6 on both sides to both sides of the box body 6, so that the gas self-circulates in the refrigerator. While the gas flows, the heat inside the refrigerator is quickly uniformed, so that the heat in the refrigerator can be quickly and evenly transferred and absorbed by the evaporator, ensuring the cooling efficiency and preventing the low temperature from being concentrated at the position of the refrigerator evaporator 3, resulting in uneven refrigeration of the refrigerator; In addition, the temperature sensor 1-4 can monitor the air inlet temperature of the centrifugal fan 1-3 in real time to monitor the air temperature inside the refrigerator.

[0019] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A vehicle refrigerator without an independent compressor, comprising a box (6), characterized in that: A door body (2) is installed on the box body (6), the box body (6) comprises an outer shell for heat preservation and an inner shell arranged in the outer shell, the inner shell and the door body (2) form a heat preservation chamber, a refrigerator evaporator (3) is arranged between the inner shell and the outer shell and is fitted with the inner shell, a cooling pipe (5) for circulating refrigerant is arranged in the box body (6), the cooling pipe (5) comprises an inlet pipe and an outlet pipe, one end of the inlet pipe and the outlet pipe are respectively connected to two ports of the refrigerator evaporator (3), and the other ends of the inlet pipe and the outlet pipe are respectively connected to the air conditioning refrigerant delivery pipeline of the vehicle, and a centrifugal fan system (1) is arranged in the box body (6).

2. A vehicle refrigerator without an independent compressor according to claim 1, characterized in that: The centrifugal fan system (1) comprises a fan mounting seat (1-5) mounted in a box body (6), a centrifugal fan (1-3) being arranged in the fan mounting seat (1-5), air duct pipes (1-6) connected to the interior of the fan mounting seat (1-5) being arranged on both sides thereof, and air outlet ports of the air duct pipes (1-6) being arranged on both sides of the inner wall of the inner shell of the box body (6).

3. A vehicle refrigerator without an independent compressor according to claim 2, characterized in that: A temperature sensor (1-4) is installed in the fan mounting seat (1-5).

4. The vehicle refrigerator without independent compressor according to claim 3, characterized in that: A decorative cover (1-1) is installed on the top of the fan mounting seat (1-5), and an air inlet is provided on the decorative cover (1-1) directly above the centrifugal fan (1-3).

5. The vehicle refrigerator without independent compressor according to claim 4, characterized in that: The centrifugal fan (1-3) is provided with a fan cover (1-2), the shapes of two sides of the fan cover (1-2) match the shapes of the air inlets of the air duct pipes (1-6), and the fan cover (1-2) and the two air duct pipes (1-6) form an air duct.

6. The vehicle refrigerator without independent compressor according to claim 5, characterized in that: A regulating valve (4) for regulating the flow rate of the refrigerant is installed in the cooling pipe (5).

7. The vehicle refrigerator without independent compressor according to claim 6, characterized in that: After the cooling pipe (5) is connected to the air conditioning refrigerant delivery pipeline of the vehicle, the pipeline formed by the inlet pipe, the outlet pipe and the refrigerator evaporator (3) is connected in parallel with the pipeline in the air conditioning evaporator assembly of the vehicle.

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