Refrigerating system

Abstract

A refrigerating system comprises a machine body, an oil smoke suction fan, a compressor, a condenser and an evaporator are installed in the machine body, the compressor, the condenser and the evaporator are communicated through refrigerant pipelines, a power supply port capable of supplying power to the oil smoke suction fan is formed outside the machine body, a solar photovoltaic panel is further arranged outside the machine body, and a storage battery is further installed in the machine body. The solar photovoltaic panel and the power supply port can supply power to the storage battery, and the compressor can supply power through the storage battery and the power supply port. According to the refrigerating system, the storage battery can be fully charged through the power supply port during valley electricity, and the storage battery can be charged through the solar photovoltaic panel in the daytime so that the storage battery can be used in the peak period in the daytime, the power grid pressure can be reduced, and the power utilization cost can be reduced; and the storage battery or the power supply port can be selected to supply power according to the electric quantity of the storage battery, so that the storage battery is prevented from discharging when the electric quantity is too low, the service life of the battery is prolonged, and the stable operation condition of the storage battery is ensured.

Description

Technical Field

[0001] This utility model relates to a refrigeration system. Background Technology

[0002] Existing technologies disclose various refrigeration-type range hoods, which integrate a fume extraction module and an air conditioning module within their casing, achieving both the functions of a range hood and an air conditioner. The fume extraction module includes a fume extraction fan, and the air conditioning components include a compressor, an indoor unit module, and an outdoor unit module. The indoor unit module includes an evaporator and an indoor unit fan, while the outdoor unit module includes a condenser and an outdoor unit fan. The compressor, condenser, and evaporator are connected via refrigerant piping. Current refrigeration-type range hoods are typically powered directly from a standard power source. Since almost every household has a range hood installed, and they are usually used during peak electricity hours, this puts pressure on the power grid. Although many households have opted for off-peak electricity, existing range hoods lack the structural design for peak and off-peak electricity, thus failing to reduce grid pressure. Furthermore, for range hoods with refrigeration systems, the compressor also requires power during operation, further increasing the pressure on the power grid. In conclusion, further improvements to the existing refrigeration system are needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a refrigeration system that can power a refrigerated range hood by means of battery energy storage, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a refrigeration system, including a body, in which a range hood fan, a compressor, a condenser and an evaporator are installed, and the compressor, condenser and evaporator are connected by a refrigerant pipeline. The outside of the body is provided with a power supply port that can supply power to the range hood fan. The feature is that: the outside of the body is also provided with a solar photovoltaic panel, and the inside of the body is also provided with a storage battery. Both the solar photovoltaic panel and the power supply port can supply power to the storage battery. The compressor can be powered by both the storage battery and the power supply port.

[0005] Preferably, the refrigeration system further includes a control system, which can monitor the battery charge and control the compressor power supply mode accordingly based on the monitored battery charge. When the charge is greater than or equal to a set value, the compressor is powered by the battery; when the charge is less than the set value, the compressor is powered by the power supply port.

[0006] Preferably, the solar photovoltaic panel uses solar energy to power the battery. With this configuration, the cooling system uses the solar photovoltaic panel to charge the battery during the day, further ensuring daytime electricity demand.

[0007] In order to utilize the battery to fully charge at night and release the energy during peak hours during the day, and to reduce grid pressure and operating costs by not using peak electricity under normal operating conditions, the power supply port supplies power to the battery during off-peak hours when peak and off-peak electricity is enabled.

[0008] To ensure stable battery operation, the control system can also monitor battery temperature. When the battery temperature is higher than a first set value, the cooling system is used to cool the battery. When the battery temperature is lower than a second set value, the cooling system stops cooling the battery. The first set value is higher than the second set value.

[0009] In order to control the flow of refrigerant in the refrigerant branch, an expansion valve is installed on the refrigerant line between the condenser and the evaporator. The refrigerant line between the expansion valve and the evaporator and the refrigerant line between the evaporator and the compressor are connected through the refrigerant branch. The refrigerant branch is wound around the battery and a valve is installed on the refrigerant branch.

[0010] Further preferably, the valve opens when the battery temperature is above a first set value, closes when the battery temperature is below a second set value, and remains unchanged when the battery temperature is between the first and second set values. This configuration allows the refrigeration system to control the battery temperature, improving battery efficiency and lifespan; it also monitors the remaining battery capacity, and when the battery level drops to the second set value, the battery should be charged or its discharge stopped until it is charged above the first set value, thus extending battery life.

[0011] There can be various types of valves, but preferably, the valve is a solenoid valve.

[0012] The first setting value and the second setting value can have multiple different selections. Preferably, the first setting value is 45-55°C and the second setting value is 15-25°C.

[0013] As a preferred embodiment of any of the above solutions, the unit has an air conditioning outlet and a fume exhaust outlet. With this configuration, the cool air from the refrigeration system can be blown out through the air conditioning outlet, and the fumes can be exhausted through the fume exhaust outlet.

[0014] Compared with the prior art, the advantages of this utility model are as follows: the refrigeration system has a battery installed inside the machine. During off-peak hours, the battery can be fully charged using the power supply port. During the day, the battery can be charged using solar photovoltaic panels for use during peak hours, reducing grid pressure and electricity costs. When the refrigeration system is turned on, it can also choose to use the battery or the power supply port for power supply according to the battery charge level, avoiding battery discharge when the charge is too low, thus extending battery life and ensuring stable battery operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the refrigeration system according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shows the principle of the refrigeration system.

[0017] Figure 3 for Figure 1 The diagram shows the power supply logic of the refrigeration system.

[0018] Figure 4 for Figure 1 The diagram shows the battery temperature protection logic of the refrigeration system. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 and Figure 2 As shown, the refrigeration system of this embodiment includes a body 1, and a fume extractor 2, a compressor 3, a condenser 4 and an evaporator 5 are installed inside the body 1. The compressor 3, the condenser 4 and the evaporator 5 are connected by a refrigerant pipe 6. The body 1 has an air conditioning outlet 13 and a fume exhaust outlet 14.

[0021] The unit 1 has a power supply port 7 and a solar photovoltaic panel 8 on its exterior, and a battery 9 is installed inside the unit 1. The power supply port 7, which is a power outlet, can directly charge the battery 9. To smooth out peak and off-peak electricity, the power supply port 7 supplies power to the battery 9 during off-peak hours. The power supply port 7 can also directly supply power to the range hood 2. The solar photovoltaic panel 8 uses solar energy to charge the battery 9 during the day. The compressor 3 can be powered by both the battery 9 and the power supply port 7.

[0022] like Figure 3As shown, the control system can monitor the battery level of the storage battery 9 and control the power supply mode of the compressor 3 accordingly. When the battery level is greater than or equal to a set value, the compressor 3 is powered by the storage battery 9; when the battery level is less than the set value, the compressor 3 is powered by the power supply port 7. For example, this set value can be set to 20%.

[0023] During off-peak hours, users generally do not use cooling range hoods, so power supply port 7 charges battery 9. If the user does need to use the cooling function, power supply port 7 will not only charge battery 9 but also drive compressor 3. During peak hours, when the battery charge is ≥20%, compressor 3 is driven by battery 9; when the charge is <20%, compressor 3 is directly driven by power supply port 7.

[0024] like Figure 4 As shown, the control system can also monitor the battery temperature. When the battery temperature is higher than a first set value, the cooling system is used to cool the battery 9. When the battery temperature is lower than a second set value, the cooling system stops cooling the battery 9. The first set value is higher than the second set value. For example, the first set value can be set to 45-55℃, and the second set value can be set to 15-25℃. An expansion valve 10 is installed on the refrigerant line 6 between the condenser 4 and the evaporator 5. The refrigerant line 6 between the expansion valve 10 and the evaporator 5, as well as the refrigerant line 6 between the evaporator 5 and the compressor 3, are connected by a refrigerant branch line 11. The refrigerant branch line 11 is wound around the battery 9, and a valve 12, which is a solenoid valve, is installed on the refrigerant branch line 11.

[0025] When the temperature of the battery 9 is greater than the first set value, valve 12 opens and the cooling system is activated to cool the battery 9; when the temperature of the battery 9 is less than the second set value, valve 12 closes; when the temperature of the battery 9 is between the first set value and the second set value, valve 12 remains unchanged.

[0026] The cooling system utilizes the storage battery 9 to store energy at night and release it during peak daytime hours. Under normal operating conditions, it avoids peak power consumption, reducing grid pressure and electricity costs. In addition, the solar photovoltaic panel 8 can charge the storage battery 9 during the day, further ensuring daytime electricity demand.

[0027] This cooling system, through optimized control logic, can maintain the battery temperature between 20 and 50°C, and keep the capacity of battery 9 above 20%. Utilizing the cooling system for temperature control of battery 9 improves battery efficiency and lifespan; it also monitors the remaining battery capacity. When the battery level drops to 20%, battery 9 should be charged or its discharge stopped until it is charged to over 80% before discharging, thus extending battery life and ensuring stable battery operation.

Claims

1. A refrigeration system comprising a body (1), wherein a range hood fan (2), a compressor (3), a condenser (4), and an evaporator (5) are installed inside the body (1), the compressor (3), the condenser (4), and the evaporator (5) are connected by a refrigerant pipeline (6), and a power supply port (7) for supplying power to the range hood fan (2) is provided outside the body (1), characterized in that: The body (1) is also equipped with a solar photovoltaic panel (8) on the outside and a storage battery (9) is installed inside the body (1). The solar photovoltaic panel (8) and the power supply port (7) can both supply power to the storage battery (9). The compressor (3) can be powered by the storage battery (9) and also by the power supply port (7).

2. The refrigeration system according to claim 1, characterized in that: It also includes a control system that can monitor the power of the storage battery (9) and control the power supply mode of the compressor (3) according to the monitored power of the storage battery. When the power is greater than or equal to the set value, the compressor (3) is powered by the storage battery (9), and when the power is less than the set value, the compressor (3) is powered by the power supply port (7).

3. The refrigeration system according to claim 2, characterized in that: The solar photovoltaic panel (8) uses solar energy to power the storage battery (9).

4. The refrigeration system according to claim 2, characterized in that: When peak and off-peak electricity is enabled, the power supply port (7) supplies power to the battery (9) in off-peak electricity conditions.

5. The refrigeration system according to claim 2, characterized in that: The control system can also monitor the battery temperature. When the battery temperature is greater than the first set value, the cooling system is used to cool the battery (9). When the battery temperature is less than the second set value, the cooling system stops cooling the battery (9). The first set value is greater than the second set value.

6. The refrigeration system according to claim 5, characterized in that: An expansion valve (10) is installed on the refrigerant line (6) between the condenser (4) and the evaporator (5). The refrigerant line (6) between the expansion valve (10) and the evaporator (5) and the refrigerant line (6) between the evaporator (5) and the compressor (3) are connected by a refrigerant branch (11). The refrigerant branch (11) is wound around the battery (9). A valve (12) is installed on the refrigerant branch (11).

7. The refrigeration system according to claim 6, characterized in that: When the temperature of the battery (9) is greater than the first set value, the valve (12) opens; when the temperature of the battery (9) is less than the second set value, the valve (12) closes; when the temperature of the battery (9) is between the first set value and the second set value, the valve (12) remains unchanged.

8. The refrigeration system according to claim 6, characterized in that: The valve (12) is a solenoid valve.

9. The refrigeration system according to claim 5, characterized in that: The first setting is 45-55℃, and the second setting is 15-25℃.

10. The refrigeration system according to any one of claims 1 to 9, characterized in that: The body (1) has an air conditioning outlet (13) and an oil fume exhaust outlet (14).

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