Solar auxiliary air conditioner refrigeration device

Abstract

The utility model discloses a solar-assisted air conditioner refrigeration device, which relates to the technical field of vehicle-mounted air conditioners and comprises an evaporator and a refrigerant storage tank which are integrated in a vehicle-mounted air conditioner, a solar power generation panel mounted at the top of a vehicle body, and a controller and a power storage battery which are mounted in the vehicle body, the refrigerant storage tank is communicated with a refrigerant inlet of the evaporator through a pipeline, a water collecting tank used for collecting water is arranged below the evaporator, a water storage tank communicated with the water collecting tank is arranged below the water collecting tank, and a heat exchange pipe is arranged in the water storage tank. One end of the heat exchange pipe is connected with a refrigerant outlet of the evaporator through a pipeline, the other end of the heat exchange pipe is connected with the bottom end of the refrigerant storage tank through a pipeline, and a heat exchange loop is formed among the evaporator, the refrigerant storage tank and the heat exchange pipe. Solar energy resources can be fully utilized, the energy efficiency of the air conditioner refrigeration system is improved, the operation cost is reduced, meanwhile, the system structure is simplified, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted air conditioners, in particular to a solar energy-assisted air conditioning refrigeration device. Background Art

[0002] Since the vehicle air conditioner can keep the temperature, humidity, air cleanliness and air flow in the vehicle compartment at a comfortable state, it has gradually become an essential component for the entire vehicle. Over the years, technical personnel in the industry have continuously studied how to improve the cooling capacity of the vehicle air conditioning system so that it can obtain a larger cooling capacity within the constraints of the vehicle body space and vehicle driving conditions.

[0003] When traditional car air conditioners improve their cooling capacity, they often do so by increasing the heat exchange area of ​​the evaporator or condenser, increasing the number of fans, etc. This not only increases the complexity and manufacturing cost of the system, but may also lead to increased energy consumption and noise. At the same time, during the operation of the car air conditioner, the evaporator will continuously absorb moisture from the surrounding air and condense it into water during the heat exchange process. This condensed water is usually discharged through the drain under the evaporator and connected to the chassis of the vehicle via a hose. However, this direct discharge method fails to effectively utilize the potential cooling capacity of the condensed water.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide a solar-assisted air-conditioning and refrigeration device, which can make full use of solar energy resources, improve the energy efficiency of the air-conditioning and refrigeration system, reduce operating costs, and simplify the system structure for easy installation and maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0006] To solve the above technical problems, the utility model provides a solar-assisted air-conditioning refrigeration device, comprising an evaporator and a refrigerant storage tank integrated in a vehicle air conditioner, a solar power generation panel installed on the top of a vehicle body, and a controller and a storage battery installed in the vehicle body, the refrigerant storage tank being connected to the refrigerant inlet of the evaporator through a pipeline, a water collecting tank for collecting water being arranged below the evaporator, a water storage tank connected to the water collecting tank being arranged below the water collecting tank, a heat exchange tube being arranged inside the water storage tank, one end of the heat exchange tube being connected to the refrigerant outlet of the evaporator through a pipeline, and the other end of the heat exchange tube being connected to the bottom end of the refrigerant storage tank through a pipeline, a heat exchange circuit being formed between the evaporator, the refrigerant storage tank and the heat exchange tube, the heat exchange circuit being filled with refrigerant, and the heat exchange circuit being also connected in series with a first circulation pump, and the first circulation pump, the controller and the solar power generation panel are all electrically connected to the storage battery.

[0007] Furthermore, it also includes a circulating refrigeration component, which includes an internal heat exchanger installed inside the water collecting tank and an external heat exchanger installed below the water storage tank. The internal heat exchanger and the external heat exchanger are connected in series with each other through pipelines to form a circulation loop, and the interior of the circulation loop is filled with coolant. A second circulation pump is also connected in series to the circulation loop, and the second circulation pump is connected to the controller wires.

[0008] Furthermore, it also includes a solar power supply component, which includes a power supply stabilizer, a solar power supply current controller, a solar voltage meter and a solar voltage indicator light connected in series with the solar power generation panel and the storage battery.

[0009] Furthermore, a temperature sensor is installed inside the refrigerant storage tank, and the temperature sensor is electrically connected to the controller.

[0010] Furthermore, the notch of the water collecting tank corresponds to the drain port below the evaporator, and the bottom wall of the water collecting tank is connected with a drain pipe, which extends vertically along the bottom surface of the water collecting tank and is connected to the inside of the water storage tank.

[0011] Furthermore, heat exchange fins are installed on the outer wall of the heat exchange tube, and a plurality of heat exchange fins are provided, and the plurality of heat exchange fins are arranged at equal distances.

[0012] Furthermore, the circulating refrigeration component also includes at least one heat dissipation fan, the heat dissipation fan is electrically connected to the controller, and the air outlet end of the heat dissipation fan corresponds to the external heat exchanger.

[0013] Furthermore, the inner heat exchanger and the outer heat exchanger are both serpentine tube structures, and the materials of the inner heat exchanger and the outer heat exchanger are both copper.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the refrigerant absorbs heat in the evaporator and becomes a low-temperature and low-pressure gas, and then enters the heat exchange tube. During the heat exchange process, it may be partially liquefied or remain in a gaseous state. Finally, the refrigerant returns to the refrigerant storage tank through the pipeline, completing a complete refrigeration cycle; the condensed water flows into the water storage tank through the water collecting tank. The water storage tank is provided with a heat exchange tube. The refrigerant in the heat exchange tube exchanges heat with the condensed water in the water storage tank during the flow process, further reducing the refrigerant temperature, and utilizing the condensed water outside the air conditioner evaporator to assist in refrigeration, which is environmentally friendly and energy-saving.

[0016] 2. In the utility model, the internal heat exchanger exchanges heat with the coolant through its internal pipes or heat exchange surfaces, and transfers the heat of the condensed water to the coolant. The external heat exchanger exchanges heat with the coolant through its external environment, and dissipates the heat in the coolant, thereby reducing the temperature of the coolant. The circulating refrigeration component can effectively utilize the coldness of the condensed water and dissipate the heat through the circulating flow of the coolant, thereby improving the refrigeration efficiency and energy efficiency ratio of the entire solar-assisted air-conditioning refrigeration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the medium cycle refrigeration component;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the solar power supply component.

[0020] In the figure: 1. Evaporator; 2. Water collecting tank; 3. Water storage tank; 4. Refrigerant storage tank; 5. Heat exchange tube; 6. First circulation pump; 7. Temperature sensor; 8. Controller; 9. Solar power generation panel; 10. DC converter; 11. Power supply stabilizer; 12. Solar power supply current controller; 13. Solar voltmeter; 14. Solar voltage indicator; 15. Storage battery; 16. Heat exchange fins; 17. Internal heat exchanger; 18. External heat exchanger; 19. Second circulation pump; 20. Cooling fan. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3The utility model provides a technical solution: a solar-assisted air-conditioning refrigeration device, comprising an evaporator 1 and a refrigerant storage tank 4 integrated in a vehicle air conditioner, a solar power generation panel 9 installed on the top of a vehicle body, and a controller 8 and a storage battery 15 installed in the vehicle body. The refrigerant storage tank 4 is connected to the refrigerant inlet of the evaporator 1 through a pipeline, a water collecting tank 2 for collecting water is arranged below the evaporator 1, a water storage tank 3 connected to the water collecting tank 2 is arranged below the water collecting tank 2, a heat exchange tube 5 is arranged inside the water storage tank 3, one end of the heat exchange tube 5 is connected to the refrigerant outlet of the evaporator 1 through a pipeline, and the other end of the heat exchange tube 5 is connected to the bottom end of the refrigerant storage tank 4 through a pipeline, a heat exchange circuit is formed between the evaporator 1, the refrigerant storage tank 4 and the heat exchange tube 5, the heat exchange circuit is filled with refrigerant, and the heat exchange circuit is also connected in series with a first circulation pump 6, and the first circulation pump 6, the controller 8 and the solar power generation panel 9 are all electrically connected to the storage battery 15.

[0023] Specifically, the solar panel 9 installed on the top of the vehicle body is responsible for converting solar energy into electrical energy and storing the electrical energy in the storage battery 15 in the vehicle body. When there is sufficient sunlight, the solar panel 9 can continuously provide the required electrical energy for the entire device;

[0024] The controller 8 is responsible for monitoring and distributing the electric energy in the storage battery 15. When the air conditioning refrigeration needs to be started or adjusted, the controller will send a signal to the first circulation pump 6 to drive it to start working;

[0025] The refrigerant stored in the refrigerant storage tank 4 is connected to the refrigerant inlet of the evaporator 1 through a pipeline. During the refrigeration process, the first circulation pump 6 is activated to drive the refrigerant to circulate in the heat exchange circuit; the heat exchange circuit is composed of the evaporator 1, the refrigerant storage tank 4 and the heat exchange tube 5, which are connected by a pipeline to form a closed loop system. During the circulation process, the refrigerant passes through the evaporator 1, the heat exchange tube 5 and the refrigerant storage tank 4 in sequence to complete the refrigeration cycle;

[0026] The refrigerant absorbs heat from the air in the evaporator 1, thereby reducing the temperature inside the vehicle and achieving a cooling effect. A water collecting tank 2 is provided below the evaporator 1 to collect condensed water generated during the cooling process;

[0027] The controller 8 continuously monitors the power generation of the solar panel 9, the power of the storage battery 15 and the operating status of the refrigeration system. According to actual needs and environmental conditions, the controller 8 can automatically adjust the speed of the first circulation pump 6 or turn on / off other related components to optimize the refrigeration effect and energy consumption of the system.

[0028] After absorbing heat in the evaporator 1, the refrigerant becomes a low-temperature and low-pressure gas, and then enters the heat exchange tube 5. During the heat exchange process, it may be partially liquefied or remain in a gaseous state. Finally, the refrigerant returns to the refrigerant storage tank 4 through the pipeline, completing a complete refrigeration cycle; the condensed water flows into the water storage tank 3 through the water collecting tank 2. The water storage tank 3 is provided with a heat exchange tube 5. The refrigerant in the heat exchange tube 5 exchanges heat with the condensed water in the water storage tank 3 during the flow process, further reducing the refrigerant temperature, and utilizing the condensed water outside the air-conditioning evaporator 1 to assist in refrigeration, which is environmentally friendly and energy-saving.

[0029] See also Figure 1 and Figure 2 , and also includes a circulating refrigeration component, which includes an internal heat exchanger 17 installed inside the water collecting tank 2 and an external heat exchanger 18 installed below the water storage tank 3. The internal heat exchanger 17 and the external heat exchanger 18 are connected in series with each other through pipelines to form a circulating loop, and the interior of the circulating loop is filled with coolant. A second circulating pump 19 is also connected in series to the circulating loop, and the second circulating pump 19 is connected to the controller 8 by wires.

[0030] Specifically,

[0031] Internal heat exchanger 17: installed inside the water collecting tank 2, used for heat exchange with the condensed water in the water collecting tank 2. The internal heat exchanger 17 exchanges heat with the coolant through its internal pipes or heat exchange surfaces, and transfers the heat of the condensed water to the coolant.

[0032] External heat exchanger 18: installed below the water tank 3, as another heat exchange point of the coolant in the circulation loop, the external heat exchanger 18 exchanges heat with the coolant through its external environment such as air or a specific cooling medium, dissipates the heat in the coolant, and thus reduces the temperature of the coolant.

[0033] Circulation loop: The internal heat exchanger 17 and the external heat exchanger 18 are connected in series through pipelines to form a closed circulation loop. The interior of the circulation loop is filled with coolant for transferring heat between the two.

[0034] The second circulation pump 19 is installed on the circulation loop and is responsible for driving the coolant to circulate in the loop. The second circulation pump 19 is connected to the controller 8 by wires and receives instructions from the controller 8 to start, stop or adjust the speed.

[0035] See also Figure 1 and Figure 3 , and also includes a solar power supply component, which includes a DC converter 10 connected in series with a solar power generation panel 9 and a storage battery 15, a power regulator 11, a solar power supply current controller 12, a solar voltmeter 13 and a solar voltage indicator light 14.

[0036] Specifically, the solar panel 9: as the starting point of energy conversion, converts solar energy into direct current electricity;

[0037] DC converter 10: optimizes the transmission of power from the solar panel to the storage battery 15, ensuring that energy can be captured with the highest efficiency under different lighting conditions;

[0038] Storage battery 15: stores the electric energy converted by the solar panel 9 through the converter for use by other parts of the system;

[0039] Power regulator 11: ensures that the voltage output from the storage battery 15 is stable to protect the subsequently connected electronic devices and ensure their normal operation;

[0040] Solar power supply current controller 12: manages the charging process of the solar panel 9 to the storage battery 15 to prevent overcharging and over-discharging, and may also include a current distribution function for the load;

[0041] Solar voltage meter 13: displays the output voltage of the solar panel 9 or the storage battery 15 in real time, helping the user or the system to monitor the power status;

[0042] Solar voltage indicator 14: provides status information of the solar power supply system through color or flashing mode, such as normal, charging, low battery warning, etc.;

[0043] See also Figure 1 A temperature sensor 7 is installed inside the refrigerant storage tank 4 , and the temperature sensor 7 is electrically connected to the controller 8 .

[0044] Specifically, refrigerant storage tank 4: used to store refrigerant, which is a key part in the air-conditioning refrigeration cycle. The refrigerant exists in the storage tank in liquid state or gas-liquid mixed state, and is released or replenished according to system requirements; temperature sensor 7: installed inside the refrigerant storage tank 4, used to detect the temperature of the refrigerant in the storage tank in real time. The temperature sensor 7 converts the detected temperature signal into an electrical signal for subsequent processing.

[0045] It should be noted that:

[0046] The temperature sensor 7 continuously monitors the temperature inside the refrigerant storage tank 4 and converts the detected temperature value into an electrical signal, which is transmitted to the input end of the controller 8 through a wire. After receiving the electrical signal from the temperature sensor 7, the controller 8 decodes and converts it to obtain the actual temperature value. The controller 8 compares the actual temperature value with a preset temperature range or threshold. Based on the comparison result, the controller 8 makes corresponding control decisions. The controller 8 may issue an instruction to start or accelerate the refrigerant circulation pump to increase the flow and heat dissipation of the refrigerant, thereby reducing the temperature inside the storage tank.

[0047] See also Figure 1 The notch of the water collecting tank 2 corresponds to the drain port below the evaporator 1 , and the bottom wall of the water collecting tank 2 is connected with a drain pipe, which extends vertically along the bottom surface of the water collecting tank 2 and is connected to the inside of the water storage tank 3 .

[0048] Specifically, the condensed water generated during the operation of the evaporator 1 can be collected through the water collecting tank 2 .

[0049] See also Figure 1 A heat exchange fin 16 is installed on the outer wall of the heat exchange tube 5, and a plurality of heat exchange fins 16 are provided, and the plurality of heat exchange fins 16 are arranged at equal distances.

[0050] Specifically, the heat exchange fins 16 are provided to increase the heat exchange area and heat exchange efficiency between the heat exchange tube 5 and the condensed water in the water storage tank 3 .

[0051] See also Figure 1 and Figure 2 The circulating refrigeration component also includes at least one heat dissipation fan 20 , which is electrically connected to the controller 8 , and the air outlet of the heat dissipation fan 20 corresponds to the external heat exchanger 18 .

[0052] The heat dissipation fan 20 can blow air toward the external heat exchanger 18, thereby improving the cooling efficiency of the external heat exchanger 18 on the internal coolant.

[0053] See also Figure 1 The inner heat exchanger 17 and the outer heat exchanger 18 are both serpentine tube structures, and the materials of the inner heat exchanger 17 and the outer heat exchanger 18 are both copper.

[0054] Specifically, the serpentine tube structure increases the length of the tube within a limited space by bending the tube, thereby increasing the heat exchange area. The increase in the heat exchange area means that more heat can be transferred during the heat exchange process, thereby improving the heat exchange efficiency.

Claims

1. A solar-assisted air conditioning refrigeration device, comprising an evaporator (1) and a refrigerant storage tank (4) integrated in a vehicle air conditioner, a solar power generation panel (9) installed on the top of the vehicle body, and a controller (8) and a storage battery (15) installed in the vehicle body, wherein the refrigerant storage tank (4) is connected to the refrigerant inlet of the evaporator (1) through a pipeline, and is characterized in that: A water collecting trough (2) for collecting water is arranged below the evaporator (1), a water storage tank (3) connected to the water collecting trough (2) is arranged below the water collecting trough (2), a heat exchange tube (5) is arranged inside the water storage tank (3), one end of the heat exchange tube (5) is connected to the refrigerant outlet of the evaporator (1) through a pipeline, and the other end of the heat exchange tube (5) is connected to the bottom end of the refrigerant storage tank (4) through a pipeline, a heat exchange loop is formed between the evaporator (1), the refrigerant storage tank (4) and the heat exchange tube (5), the heat exchange loop is filled with refrigerant, and the heat exchange loop is also connected in series with a first circulation pump (6), and the first circulation pump (6), the controller (8) and the solar power generation panel (9) are all electrically connected to the storage battery (15).

2. The solar-assisted air conditioning and refrigeration device according to claim 1, characterized in that: The invention also comprises a circulating refrigeration component, wherein the circulating refrigeration component comprises an internal heat exchanger (17) installed inside the water collecting tank (2) and an external heat exchanger (18) installed below the water storage tank (3), wherein the internal heat exchanger (17) and the external heat exchanger (18) are connected in series with each other through a pipeline to form a circulating loop, and the interior of the circulating loop is filled with cooling liquid. A second circulating pump (19) is also connected in series with the circulating loop, and the second circulating pump (19) is connected to the controller (8) by electric wires.

3. The solar-assisted air conditioning and refrigeration device according to claim 1, characterized in that: It also includes a solar power supply component, which includes a direct current converter (10) connected in series with a solar power generation panel (9) and a storage battery (15), a power supply regulator (11), a solar power supply current controller (12), a solar voltage meter (13) and a solar voltage indicator light (14).

4. The solar-assisted air conditioning and refrigeration device according to claim 1, characterized in that: A temperature sensor (7) is installed inside the refrigerant storage tank (4), and the temperature sensor (7) is electrically connected to a controller (8).

5. The solar-assisted air conditioning and refrigeration device according to claim 1, characterized in that: The notch of the water collecting tank (2) corresponds to the drain outlet below the evaporator (1), and the bottom wall of the water collecting tank (2) is connected to a drain pipe, which extends vertically along the bottom surface of the water collecting tank (2) and is connected to the inside of the water storage tank (3).

6. The solar-assisted air conditioning and refrigeration device according to claim 1, characterized in that: Heat exchange fins (16) are installed on the outer wall of the heat exchange tube (5), and a plurality of heat exchange fins (16) are provided, and the plurality of heat exchange fins (16) are arranged at equal distances.

7. The solar-assisted air conditioning and refrigeration device according to claim 2, characterized in that: The circulating refrigeration component also includes at least one heat dissipation fan (20), the heat dissipation fan (20) is electrically connected to the controller (8), and the air outlet end of the heat dissipation fan (20) corresponds to the external heat exchanger (18).

8. The solar-assisted air conditioning and refrigeration device according to claim 2, characterized in that: The inner heat exchanger (17) and the outer heat exchanger (18) are both serpentine tube structures, and the inner heat exchanger (17) and the outer heat exchanger (18) are both made of copper.

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