A multi-component refrigeration mode refrigerator for vehicle

Abstract

The utility model discloses a kind of multi-element refrigeration mode's refrigerator for vehicle, the refrigerator is equipped with inner cavity, the side of inner cavity is equipped with refrigeration chamber, the refrigeration chamber is equipped with cold accumulator, the side of the cold accumulator is equipped with semiconductor refrigerator, the side of semiconductor refrigerator is equipped with evaporator, the inner cavity between with refrigeration chamber is equipped with air inlet and air outlet, the refrigeration chamber is also equipped with centrifugal fan. The utility model realizes refrigeration and freezing function with one compressor shared by vehicle-mounted air conditioner, simple structure, small, good refrigeration effect, low in cost, realizes multi-element refrigeration mode.

Description

Technical Field

[0001] This utility model relates to a car refrigerator with multiple refrigeration methods. Background Technology

[0002] With the increasing prevalence of electric vehicles, the demand for vehicle-mounted refrigeration systems is also growing. Systems such as in-vehicle air conditioners and refrigerators now employ independent refrigeration systems, using separate compressors to cool each component individually. Currently, existing vehicle refrigeration systems use separate compressors for each component, resulting in low overall refrigeration utilization and wasted components.

[0003] There are currently cases of air conditioners and refrigerators sharing the same compressor on the market. However, because refrigerators and air conditioners have different evaporation temperatures and evaporation pressures, it is difficult for them to operate simultaneously. Various roundabout measures are usually adopted. Therefore, it is necessary to integrate a shared refrigeration system for vehicle air conditioners and vehicle refrigerators, and design a multi-mode refrigeration system to realize a vehicle refrigerator with real-time refrigeration and freezing functions. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a car refrigerator that uses a multi-mode refrigeration system, which shares a compressor with the vehicle's air conditioner to achieve both refrigeration and freezing functions. This system is simple in structure, small in size, has good refrigeration effect, and low cost.

[0005] The purpose of this utility model is achieved as follows:

[0006] A multi-mode refrigeration vehicle refrigerator, wherein the refrigerator has an inner cavity, characterized in that a refrigeration chamber is provided on one side of the inner cavity, the refrigeration chamber is provided with a cold storage device, a semiconductor cooler is provided on one side of the cold storage device, an evaporator is provided on one side of the semiconductor cooler, an air inlet and an air outlet are provided between the inner cavity and the refrigeration chamber, and the refrigeration chamber is also provided with a centrifugal fan.

[0007] The vehicle refrigerator with a multi-mode refrigeration system as described above is characterized in that it further includes an expansion valve connected to a cold accumulator.

[0008] The automotive refrigerator with a multi-mode refrigeration system as described above is characterized in that the heat dissipation end of the semiconductor refrigeration unit is connected to the cold storage unit, and the refrigeration end of the semiconductor refrigeration unit is connected to the evaporator.

[0009] The vehicle refrigerator with a multi-mode refrigeration system as described above is characterized in that the refrigerator has an inner cavity shell, an inner cavity is formed inside the inner cavity shell, the refrigeration chamber includes a refrigeration chamber rear shell, a connecting seat is provided between the inner cavity shell and the refrigeration chamber, one side of the refrigeration chamber rear shell is open and sleeved on one side of the connecting seat, and one side of the inner cavity shell is connected to the other side of the connecting seat.

[0010] The vehicle refrigerator with a multi-mode refrigeration system as described above is characterized in that the connecting seat is provided with a partition, the fan is located in the upper part of the refrigeration chamber, the cold storage, the semiconductor refrigerator and the evaporator are located in the lower part of the refrigeration chamber, the air inlet is located in the lower part of the partition, and the air outlet is located in the upper part of the partition.

[0011] The vehicle refrigerator with a multi-mode refrigeration system as described above is characterized in that the cold storage device contains a cold storage material and a heat exchange tube.

[0012] The vehicle refrigerator with a multi-mode refrigeration system as described above is characterized in that the evaporator has a refrigeration channel and fins are provided on the side of the evaporator near the inner cavity.

[0013] The automotive refrigerator with a multi-mode refrigeration system as described above is characterized in that a solenoid valve is further provided between the expansion valve and the cold accumulator.

[0014] The beneficial effects of this utility model are:

[0015] This utility model shares a single compressor with the vehicle's air conditioning system to achieve both refrigeration and freezing functions. It features a simple structure, small size, good cooling effect, low cost, and multiple cooling methods. Attached Figure Description

[0016] Figure 1 is a structural diagram of this utility model;

[0017] Figure 2 is an internal structural diagram of this utility model;

[0018] Figure 3 is a partial structural diagram of Figure 2;

[0019] Figure 4 is a top view of Figure 2;

[0020] Figure 5 is a cross-sectional view AA of Figure 4;

[0021] Figure 6 is a circuit diagram of the present invention when connected to a vehicle air conditioner. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] A multi-mode automotive refrigerator, wherein the refrigerator 1 has an inner cavity 2, a refrigeration chamber 3 is provided on one side of the inner cavity 2, a cold storage 4 is provided in the refrigeration chamber 3, a semiconductor cooler 5 is provided on one side of the cold storage 4, and an evaporator 6 is provided on one side of the semiconductor cooler 5. An air inlet 31 and an air outlet 32 ​​are provided between the inner cavity 2 and the refrigeration chamber 3. The refrigeration chamber 3 is also provided with a centrifugal fan 7, which allows hot air to enter from the air inlet 31, undergo heat exchange in the refrigeration chamber 3 to become cold air, and then enter the inner cavity 2 from the air outlet 32.

[0024] This invention also includes an expansion valve 8 connected to the cold storage 4. The expansion valve 8 can be installed inside or outside the refrigerator. The expansion valve allows the medium-temperature, high-pressure liquid refrigerant to be throttled into low-temperature, low-pressure wet vapor. The refrigerant then absorbs heat in the evaporator to achieve a cooling effect. The expansion valve controls the valve flow rate by changing the superheat at the end of the evaporator, preventing insufficient utilization of the evaporator area and knocking phenomena.

[0025] The refrigerator 1 of this utility model is provided with an inner cavity shell 10, an inner cavity 2 is formed inside the inner cavity shell 10, and a cooling chamber 3 includes a cooling chamber rear shell 30. A connecting seat 20 is provided between the inner cavity shell 10 and the cooling chamber 3. One side of the cooling chamber rear shell 30 is open and sleeved on one side of the connecting seat 20. One side of the inner cavity shell 10 is connected to the other side of the connecting seat 20. The connecting seat 20 is provided with a partition 21. The fan 7 is provided in the upper part of the cooling chamber 3. The cold storage 4, the semiconductor cooler 5, and the evaporator 6 are provided in the lower part of the cooling chamber 3. The air inlet 31 is provided in the lower part of the partition 21, and the air outlet 32 ​​is provided in the upper part of the partition 21.

[0026] The heat dissipation end of the semiconductor cooler 5 of this invention is connected to the cold storage 4, and the cooling end of the semiconductor cooler 5 is connected to the evaporator 6.

[0027] The cold storage device 4 of this utility model is equipped with a cold storage material 41 and a heat exchange tube 42. By utilizing the cold storage material 41 to accumulate cold energy in the low-temperature cycle, the freezing speed can be improved.

[0028] The evaporator 6 of this invention has a cooling channel 61 inside, and fins 62 are provided on the side of the evaporator 6 near the inner cavity 2. The low-temperature condensed liquid passes through the evaporator and exchanges heat with the outside air, vaporizing and absorbing heat to achieve a cooling effect.

[0029] The expansion valve 8 of this utility model is further provided with a solenoid valve 9 between it and the cold storage 4. The solenoid valve 9 achieves fluid control by driving the valve body to move through an electromagnetic coil. For example, when it is necessary to provide a medium-temperature cold source (a refrigerant with the same pressure and temperature as the air conditioner) to the semiconductor refrigerator 5, this valve is closed to prevent a heating effect from forming inside the refrigerator.

[0030] As shown in Figure 6, the vehicle air conditioner of this utility model includes a compressor 100 and a condenser 101 connected to the vehicle. One path of the condenser 101 is connected to the air conditioner evaporator 104 of the vehicle through a dryer filter 102 and an expansion valve 103. The other path of the condenser 101 is connected to a vehicle refrigerator through an expansion valve 8, thereby realizing refrigeration and freezing functions at -6℃ and lower temperatures.

[0031] The refrigeration methods of the vehicle refrigerator of this utility model are divided into four types;

[0032] 1. When the air conditioner is turned on, if the temperature inside the refrigerator is 2°C higher than the air conditioner's refrigerant temperature, the expansion valve 8 opens to provide the evaporator 6 with refrigerant at the same pressure and temperature as the air conditioner, thus cooling the refrigerator.

[0033] 2. When the air conditioner is turned on and the refrigerator temperature is within 2°C of the air conditioner refrigerant, the cold storage 4 supplies cooling to the hot end of the semiconductor cooler 5, and the semiconductor cooler 5 turns on to provide low-temperature cold air to the refrigerator.

[0034] 3. When the air conditioner is off, if the temperature of the cold storage 4 is lower than the temperature of the refrigerator, the fan 7 will be turned on so that the cold storage 4 can cool the refrigerator.

[0035] 4. When the air conditioner is turned off, if the temperature of the cold storage unit 4 is higher than the temperature of the refrigerator, the semiconductor cooler 5 will be turned on to cool the hot end, and the semiconductor will cool the refrigerator.

[0036] When the cold storage 4 is insufficient, if the air conditioner is running, the present invention provides the cold storage 4 with the same pressure and temperature as the air conditioner to store cold. When the refrigerator needs cold, the semiconductor refrigeration is activated.

[0037] If the air conditioner is off, request that the compressor be turned on and expansion valve 8 be opened to supply the cold storage unit with a low temperature (e.g., -10°C) at a pressure lower than the air conditioner's normal cooling temperature.

Claims

1. A vehicle refrigerator with multiple refrigeration methods, wherein the refrigerator (1) is provided with an inner cavity (2). Its features A refrigeration chamber (3) is provided on one side of the inner cavity (2). The refrigeration chamber (3) is provided with a cold storage device (4). A semiconductor cooler (5) is provided on one side of the cold storage device (4). An evaporator (6) is provided on one side of the semiconductor cooler (5). An air inlet (31) and an air outlet (32) are provided between the inner cavity (2) and the refrigeration chamber (3). The refrigeration chamber (3) is also provided with a centrifugal fan (7).

2. The automotive refrigerator with a multi-mode refrigeration system according to claim 1, characterized in that... The vehicle refrigerator also includes an expansion valve (8) connected to the cold storage unit (4).

3. A vehicle refrigerator with a multi-mode refrigeration system according to claim 1, characterized in that... The heat dissipation end of the semiconductor cooler (5) is connected to the cold storage (4), and the cooling end of the semiconductor cooler (5) is connected to the evaporator (6).

4. A vehicle refrigerator with a multi-mode refrigeration system according to claim 1, characterized in that... The refrigerator (1) is provided with an inner cavity shell (10), and an inner cavity (2) is formed inside the inner cavity shell (10). The refrigeration chamber (3) includes a refrigeration chamber rear shell (30). A connecting seat (20) is provided between the inner cavity shell (10) and the refrigeration chamber (3). One side of the refrigeration chamber rear shell (30) is open and sleeved on one side of the connecting seat (20). One side of the inner cavity shell (10) is connected to the other side of the connecting seat (20).

5. A vehicle refrigerator with a multi-mode refrigeration system according to claim 4, characterized in that... The connecting seat (20) is provided with a partition (21), the fan (7) is located at the upper part of the refrigeration chamber (3), the cold storage (4), the semiconductor cooler (5) and the evaporator (6) are located at the lower part of the refrigeration chamber (3), the air inlet (31) is located at the lower part of the partition (21), and the air outlet (32) is located at the upper part of the partition (21).

6. A vehicle refrigerator with a multi-mode refrigeration system according to claim 1, characterized in that... The cold storage device (4) is equipped with cold storage material (41) and heat exchange tube (42).

7. A vehicle refrigerator with a multi-mode refrigeration system according to claim 1, characterized in that... The evaporator (6) is provided with a refrigeration channel (61), and fins (62) are provided on the side of the evaporator (6) near the inner cavity (2).

8. A vehicle refrigerator with a multi-mode refrigeration system according to claim 2, characterized in that... A solenoid valve (9) is also provided between the expansion valve (8) and the cold accumulator (4).

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