Air duct refrigerating system and refrigerator

Abstract

The invention provides an air duct refrigerating system and a refrigerator. The air duct refrigerating system comprises an air duct assembly, a shelf assembly and a refrigerating assembly. The air duct assembly comprises a first chamber air duct and a second chamber air duct, the air direction of the first chamber air duct is a first direction, the air direction of the second chamber air duct is a second direction, the shelf assembly comprises a first shelf and a second shelf, the first shelf is connected with the first chamber air duct, and the second shelf is connected with the second chamber air duct; the refrigeration assembly comprises an evaporator, the evaporator is arranged between the first shelf and the second shelf, the refrigeration assembly and the shelf assembly form a heat exchange space, and the evaporator conveys cold air into the air duct assembly after heat exchange. According to the refrigerator, the air duct refrigeration system is arranged between the first chamber and the second chamber, the evaporator does not occupy the volume space of the refrigerator independently, and independent refrigeration of the first chamber and the second chamber is achieved by controlling opening and closing of the air door and the refrigeration fan.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to an air duct refrigeration system and a refrigerator. Background Art

[0002] The dual-system air-cooled refrigerator uses two independent refrigeration systems to control the temperature of the refrigerator and freezer compartments respectively. The refrigerator and freezer compartments of the dual-system air-cooled refrigerator are each equipped with an evaporator, and the refrigeration evaporator and the freezing evaporator are switched to work separately through the switching valve. The relative humidity in the refrigerator can reach more than 75%, and the preservation effect of fruits and vegetables is good, but the refrigeration duct components occupy a large volume, which reduces the effective use space of the refrigerator.

[0003] To solve the above problems, the evaporator can be set in the middle beam between the refrigerator and the freezer, and a duct assembly, a shelf assembly and a drain board can be set to achieve refrigeration of the refrigerator and the freezer. The height space occupied by the evaporator is reduced, and the space occupied by the duct assembly in the cabinet is reduced, thereby expanding the capacity of the cabinet.

[0004] However, by moving the evaporator to the center beam position and reducing the space occupied by the evaporator and the air duct, the function of the dual system independently controlling the refrigerator and freezer compartments cannot be achieved. Summary of the invention

[0005] The present application provides an air duct refrigeration system and a refrigerator to solve the problem that the evaporator is moved to the center beam position and the function of the dual system independently controlling the refrigerating chamber and the freezing chamber cannot be realized.

[0006] In a first aspect, the present application provides an air duct refrigeration system, comprising:

[0007] The air duct assembly comprises a first compartment air duct and a second compartment air duct, wherein the wind direction of the first compartment air duct is a first direction, and the wind direction of the second compartment air duct is a second direction,

[0008] A shelf assembly, comprising a first shelf and a second shelf, wherein the first shelf is connected to the air duct of the first compartment, and the second shelf is connected to the air duct of the second compartment;

[0009] The refrigeration component includes an evaporator, which is arranged between the first shelf and the second shelf. The refrigeration component and the shelf component form a heat exchange space. After heat exchange, the evaporator transports cold air to the air duct component.

[0010] In the duct refrigeration system, the duct assembly and the shelf assembly form two ducts, and cold air is transported to the first compartment duct and the second compartment duct through the evaporator to realize the function of the dual system, and the cold air can be independently transported by controlling the opening and closing of the duct.

[0011] In some feasible embodiments, a first air inlet damper is provided at the connection between one end of the first shelf and the air duct of the first chamber, and a first air return damper is provided at the other end of the first shelf;

[0012] A second air inlet damper is provided at the connection between one end of the second shelf and the air duct of the second chamber, and a second air return damper is provided at the other end of the second shelf;

[0013] The first compartment air duct is provided with a first compartment air inlet and a first compartment air outlet, and a first distance is set between the first compartment air inlet and the first compartment air outlet; the second compartment air duct is provided with a second compartment air inlet and a second compartment air outlet, and a second distance is set between the first compartment air inlet and the first compartment air outlet;

[0014] It also includes a first air return port and a second air return port, wherein the first chamber air inlet, the first chamber air outlet and the first air return port are connected;

[0015] The second chamber air inlet, the second chamber air outlet and the second air return outlet are connected.

[0016] The delivery of cold air can be controlled by controlling the first air inlet damper, the first air return damper and the second compartment damper, so as to further facilitate the control of the delivery channel of the cold air.

[0017] In some feasible embodiments, the refrigeration assembly includes:

[0018] A compressor, one end of the compressor is connected to the evaporator, and the other end of the compressor is connected to a condenser;

[0019] A capillary tube, one end of which is connected to a condenser, and the other end of which is connected to the evaporator;

[0020] The refrigeration fan drives the evaporator to exchange heat and transport cold air into the air duct assembly.

[0021] Cold air can be generated by the refrigeration component to deliver the cold air to the first compartment air duct and the second compartment air duct.

[0022] In some feasible embodiments, the first end of the evaporator is connected to the first shelf, the second end of the evaporator is connected to the second shelf, and the temperature of the first end is lower than the temperature of the second end;

[0023] The evaporator and the first shelf form a first angle.

[0024] By forming a certain angle, the surface area of ​​the evaporator in contact with the air can be increased, thereby improving the heat exchange efficiency.

[0025] In some feasible embodiments, a heat insulating layer is disposed between the first shelf and the second shelf, and the material of the heat insulating layer is polyurethane.

[0026] Insulation reduces unnecessary heat exchange and helps improve the energy efficiency of the cooling duct system.

[0027] In a second aspect, the present application provides a refrigerator, comprising:

[0028] a first chamber, wherein the temperature of the first chamber is in a first range;

[0029] a second chamber, wherein the temperature of the second chamber is in a second range, and a maximum value of the first range is less than a minimum value of the second range;

[0030] A partition is arranged between the first chamber and the second chamber, and the air duct refrigeration system is arranged in the partition.

[0031] The duct refrigeration system is arranged between the freezer and refrigerator compartments. The evaporator does not occupy the refrigerator volume space alone. With the evaporator being arranged between the two compartments, it has the advantage of easy air supply upward and downward.

[0032] In some feasible embodiments, it also includes:

[0033] a first temperature sensor, disposed in the first chamber, for detecting the temperature of the first chamber;

[0034] a second temperature sensor, disposed in the second chamber, for detecting the temperature of the second chamber;

[0035] The controller is electrically connected to the first temperature sensor, the second temperature sensor, the compressor, the refrigeration fan, the first air inlet damper, the first air return damper and the second air inlet damper.

[0036] In the refrigerator refrigeration system, the first temperature sensor and the second temperature sensor detect the temperature of the first chamber and the second chamber respectively, and transmit the temperature signal to the controller. The controller controls the compressor, the refrigeration fan, the first air inlet damper, the first return air damper and the second air inlet damper according to the temperature threshold.

[0037] In some feasible embodiments, the controller is configured to:

[0038] Acquire a first temperature result and a second temperature result, wherein the first temperature result is a temperature result detected by the first temperature sensor, and the second temperature result is a temperature result detected by the second temperature sensor;

[0039] If the first temperature result is greater than or equal to the first temperature threshold, and the second temperature result is greater than or equal to the second temperature threshold, an instruction is sent to the first air inlet damper, the first return air damper and the second air inlet damper to control the opening of the first air inlet damper, the first return air damper and the second air inlet damper.

[0040] By comparing the temperature results with the temperature threshold, the controller can accurately determine the temperature status of the two compartments. Through temperature judgment and damper control, it can not only provide sufficient cooling capacity when needed, but also reduce unnecessary energy consumption when the temperature is appropriate, thereby improving the efficiency and energy saving of the refrigerator refrigeration system.

[0041] In some feasible embodiments, the controller is further configured to:

[0042] Acquire a first temperature result and a second temperature result, wherein the first temperature result is a temperature result detected by the first temperature sensor, and the second temperature result is a temperature result detected by the second temperature sensor;

[0043] If the first temperature result is greater than or equal to a first temperature threshold, and the second temperature result is less than a second temperature threshold, sending an instruction to the first air inlet damper and the first return air damper to control the first air inlet damper and the first return air damper to open;

[0044] If the first temperature result is less than a first temperature threshold, and the second temperature result is greater than or equal to a second temperature threshold, a command is sent to the second air inlet damper to control the second air inlet damper to open.

[0045] By comparing the temperature result with the temperature threshold, the controller can accurately determine the temperature status of the two compartments and selectively open the first air inlet damper, the first return air damper or the second air inlet damper as needed, thereby minimizing energy consumption while ensuring the cooling effect.

[0046] In some feasible embodiments, it also includes:

[0047] a third temperature sensor, disposed on the evaporator, for detecting the temperature of the evaporator;

[0048] The controller is electrically connected to the third temperature sensor;

[0049] The controller is also configured to:

[0050] Acquire the state of the compressor, wherein the state includes a running stage and a stopping stage;

[0051] If the state of the compressor is in the stop stage, obtaining a third temperature result, where the third temperature result is a temperature result detected by the third temperature sensor;

[0052] If the third temperature result is less than the temperature threshold, an instruction is sent to the second air inlet door and the cooling fan to control the second air inlet door and the cooling fan to open, so as to increase the humidity of the second chamber.

[0053] Through precise temperature detection and humidity control, it is possible to minimize energy consumption while ensuring a comfortable environment inside the refrigerator. Since humidity control is performed when the compressor is stopped, no additional refrigeration load is added, further improving the energy saving and efficiency of the refrigerator.

[0054] It can be seen from the above technical solutions that the present application provides a duct refrigeration system and a refrigerator, the duct refrigeration system includes a duct assembly, a shelf assembly and a refrigeration assembly. The duct assembly includes a first compartment duct and a second compartment duct, the wind direction of the first compartment duct is a first direction, and the wind direction of the second compartment duct is a second direction, the shelf assembly includes a first shelf and a second shelf, the first shelf is connected to the first compartment duct, and the second shelf is connected to the second compartment duct; the refrigeration assembly includes an evaporator, the evaporator is arranged between the first shelf and the second shelf, the refrigeration assembly and the shelf assembly form a heat exchange space, and the evaporator transports cold air to the duct assembly after heat exchange. The refrigerator arranges the duct refrigeration system between the first compartment and the second compartment, the evaporator does not occupy the volume space of the refrigerator alone, and the first compartment and the second compartment are independently refrigerated by controlling the opening and closing of the damper and the refrigeration fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0056] Figure 1 A schematic diagram of the refrigerator structure provided in an embodiment of the present application;

[0057] Figure 2 A schematic diagram of the refrigeration assembly structure provided in an embodiment of the present application.

[0058] Illustration Description:

[0059] Among them, 1-first chamber, 2-second chamber, 31-evaporator, 32-compressor, 33-condenser, 34-capillary tube, 35-anti-condensation tube, 36-filter, 4-partition, 41-first shelf, 42-second shelf, 5-first chamber air duct, 51-first chamber air inlet, 52-first chamber air outlet, 53-first return air outlet, 6-second chamber air duct, 61-second chamber air inlet, 62-second chamber air outlet, 63-second return air outlet, 7-refrigeration fan, 8-first air inlet damper, 9-first return air damper, 10-second air inlet damper. DETAILED DESCRIPTION

[0060] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0061] The dual-system air-cooled refrigerator uses two independent refrigeration systems to control the temperature of the refrigerator and freezer compartments respectively. The refrigerator and freezer compartments of the dual-system air-cooled refrigerator are each equipped with an evaporator, and the refrigeration evaporator and the freezing evaporator are switched to work separately through the switching valve. The relative humidity in the refrigerator can reach more than 75%, and the preservation effect of fruits and vegetables is good, but the refrigeration duct components occupy a large volume, which reduces the effective use space of the refrigerator.

[0062] To solve the above problems, the evaporator can be set in the middle beam between the refrigerator and the freezer, and a duct assembly, a shelf assembly and a drain board can be set to achieve refrigeration of the refrigerator and the freezer. The height space occupied by the evaporator is reduced, and the space occupied by the duct assembly in the cabinet is reduced, thereby expanding the capacity of the cabinet.

[0063] However, by moving the evaporator to the center beam position and reducing the space occupied by the evaporator and the air duct, the function of the dual system independently controlling the refrigerator and freezer compartments cannot be achieved.

[0064] To solve the above problems, see Figure 1 Some embodiments of the present application provide a duct refrigeration system, including: a duct assembly, a shelf assembly, and a refrigeration assembly. Taking the duct refrigeration system arranged in a refrigerator as an example, the duct assembly includes a first compartment duct 5 and a second compartment duct 6. The wind direction of the first compartment duct 5 is a first direction, and the wind direction of the second compartment duct 6 is a second direction. That is, the first compartment duct 5 leads to the first compartment 1, and the wind direction of the second compartment duct 6 leads to the second compartment 2.

[0065] For example, the first compartment 1 is a refrigerating compartment, the second compartment 2 is a freezing compartment, the first compartment air duct 5 is the air duct of the refrigerating compartment, and is used to guide the flow of cold air. The second compartment air duct 6 is the air duct of the freezing compartment, and is used to guide the flow of cold air. The cold air has different flow paths in the two compartments.

[0066] The shelf assembly includes a first shelf 41 and a second shelf 42, wherein the first shelf 41 is connected to the first compartment air duct 5, and the second shelf 42 is connected to the second compartment air duct 6. The first shelf 41 is a shelf connected to the first compartment air duct 5, and is used to isolate the evaporator 31 from the first compartment, while ensuring that cold air can be transferred from the evaporator 31 to the first compartment 1. The second shelf 42 is a shelf connected to the second compartment air duct 6, and similarly to the first shelf 41, isolates the evaporator 31 from the second compartment 2, and ensures that cold air can be transferred from the evaporator 31 to the second compartment 2.

[0067] In some embodiments, a first air inlet damper 8 is provided at the connection between one end of the first shelf 41 and the first compartment air duct 5, and a first air return damper 9 is provided at the other end of the first shelf 41. The first air inlet damper 8 is used to control the flow of external air or air from other areas into the first compartment air duct 5, and can be opened or closed as needed to adjust the air temperature and flow in the first compartment air duct 5. The first air return damper 9 is used to control the air flow returned from the first compartment 1, which helps to recycle the air, improve energy efficiency, and may reduce the demand for fresh air.

[0068] A second air inlet damper 10 is provided at the connection between one end of the second shelf 42 and the second compartment air duct 6, and a second air return damper is provided at the other end of the second shelf 42. The second air inlet damper 10 and the second air return damper are similar to the first air inlet damper 8 and the first return air damper 9, but they control the flow of cold air entering the second compartment air duct 6.

[0069] The first compartment air duct 5 is provided with a first compartment air inlet 51 and a first compartment air outlet 52, and a first distance is set between the first compartment air inlet 51 and the first compartment air outlet 52; the second compartment air duct 6 is provided with a second compartment air inlet 61 and a second compartment air outlet 62, and a second distance is set between the first compartment air inlet 51 and the first compartment air outlet 52.

[0070] It also includes a first return air vent 53 and a second return air vent 63, wherein the first compartment air inlet 51, the first compartment air outlet 52 and the first return air vent 53 are connected; the second compartment air inlet 61, the second compartment air outlet 62 and the second return air vent 63 are connected. The first return air vent 53 is arranged on the first compartment 1 (first shelf 41) to reintroduce the air returned from the refrigerating compartment into the air duct system. The second return air vent 63 is arranged in the second compartment 2 (second shelf 42) to reintroduce the air returned from the freezing compartment into the air duct system.

[0071] The air returned from the refrigerator compartment can be reintroduced into the air duct system through the first return air vent 53 to form a closed-loop air circulation system, ensuring that the air in the refrigerator compartment can be evenly distributed. The air returned from the freezer compartment can be reintroduced into the air duct system through the second return air vent 63 to form a closed-loop air circulation system, ensuring that the air in the freezer compartment can be evenly distributed. By controlling the first air inlet damper 8, the first return air damper 9, the second air inlet damper 10 and the second return air damper, the amount of air entering and leaving the refrigerator compartment and the freezer compartment can be better managed, thereby controlling the temperature more accurately.

[0072] The refrigeration assembly includes an evaporator 31, which is arranged between the first shelf 41 and the second shelf 42. The evaporator 31 absorbs heat through the refrigerant and releases cold air. The evaporator 31 is located between the first shelf 41 and the second shelf 42, and has the advantage of easy upward and downward air supply, and can provide cold air for two compartments at the same time. The refrigeration assembly and the shelf assembly form a heat exchange space. After heat exchange, the evaporator 31 transports the cold air to the air duct assembly.

[0073] Exemplarily, when the refrigeration system is started, the refrigerant changes from liquid to gas in the evaporator 31, and the evaporator 31 absorbs heat from the surrounding air to cool the air. The cooled air is blown into the heat exchange space by the fan and is transported to the first compartment air duct 5 and the second compartment air duct 6 through the first shelf 41 and the second shelf 42 respectively. The first compartment air duct 5 transports the cold air to the refrigerating chamber, and the second compartment air duct 6 transports the cold air to the freezing chamber.

[0074] In the first chamber 1, the cooled air is returned to the air duct assembly through the first return air damper 9, and in the second chamber 2, the cold air circulates through the second chamber air duct 6 to maintain the low temperature of the freezing chamber.

[0075] In this way, the temperature of the two compartments can be independently controlled by using a single evaporator 31 to realize the dual circulation system function, ensuring that both the refrigerator and freezer can achieve the best preservation effect. Different wind directions and shelves can make the cold air evenly distributed in each compartment, alleviating the problem of local overcooling or overheating.

[0076] Compared with the single-system air-cooled refrigerator, this embodiment can realize independent refrigeration of the refrigerator and freezer, further increase the humidity of the refrigerator, and improve the preservation effect of fruits and vegetables; on the other hand, compared with the existing double-circulation technology, the refrigeration air duct device is smaller, the refrigerator volume ratio is large, and the cost performance is high. At the same time, there is no risk of damage to the electric valve switching, which reduces the maintenance cost of the refrigeration system.

[0077] See also Figure 2 In some embodiments, the refrigeration component also includes: a compressor 32, a capillary tube 34 and a refrigeration fan 7, one end of the compressor 32 is connected to the evaporator 31, the other end of the compressor 32 is connected to the condenser 33, one end of the capillary tube 34 is connected to the condenser 33, the other end of the capillary tube 34 is connected to the evaporator 31, and the refrigeration fan 7 drives the evaporator 31 to enable the evaporator 31 to exchange heat and transport cold air to the air duct component.

[0078] The compressor 32 is used to compress low-pressure gas into high-pressure gas, and promote the circulation of refrigerant in the system. The condenser 33 cools the high-temperature and high-pressure gas output by the compressor 32, changing it from gas to liquid. The capillary tube 34 is used to control the flow of refrigerant from the condenser 33 to the evaporator 31, thereby reducing the pressure and temperature of the refrigerant. The refrigeration fan 7 is used to drive air to flow through the evaporator 31, accelerate the heat exchange between the evaporator 31 and the air, and enable the evaporator 31 to effectively cool the air.

[0079] The compressor 32 compresses the low-pressure refrigerant gas from the evaporator 31 into a high-temperature and high-pressure gas, and sends the gas to the condenser 33. In the condenser 33, the high-temperature and high-pressure refrigerant gas is cooled and converted into a low-temperature and high-pressure liquid. Through the capillary 34, the low-temperature and high-pressure liquid refrigerant is further depressurized and converted into a low-temperature and low-pressure liquid / gas mixture. The low-temperature and low-pressure refrigerant enters the evaporator 31, where it absorbs heat from the surrounding air, evaporates into gas, and cools the air at the same time. The refrigeration fan 7 runs, causing the air to flow through the evaporator 31, enhancing the heat exchange efficiency, and allowing the evaporator 31 to transport the cold air into the air duct assembly. The cold air is transported to different compartments through the air duct assembly, and the air flow is controlled by the air inlet and return air dampers to maintain the required temperature.

[0080] In some embodiments, an anti-condensation tube 35 is connected between the compressor 32 and the condenser 33, and a filter 36 is connected between the condenser 33 and the capillary tube 34. The anti-condensation tube 35 is used to prevent the refrigerant from condensing at the inlet of the condenser 33, thereby affecting the refrigeration effect. The filter 36 is used to filter impurities in the refrigerant to ensure the cleanliness of the refrigeration system.

[0081] The refrigerant comes out of the compressor 32 and enters the condenser 33 through the anti-condensation pipe 35. In the condenser 33, the refrigerant is cooled and changes from gas to liquid. The refrigerant then passes through the filter 36 to remove impurities therein. The refrigerant purified by the filter 36 passes through the capillary tube 34 to reduce pressure and temperature. The refrigerant enters the evaporator 31, absorbs heat in the evaporator 31, and completes the refrigeration process.

[0082] In some embodiments, the first end of the evaporator 31 is connected to the first shelf 41, and the second end of the evaporator 31 is connected to the second shelf 42. The temperature of the first end is lower than the temperature of the second end. As the refrigerant flows in the evaporator 31, the temperature gradually increases. The first end is where the refrigerant enters the evaporator 31, and the temperature is relatively low. As the refrigerant continues to flow, the temperature gradually increases, and the temperature is relatively high when it reaches the second end. Through the temperature difference at both ends of the evaporator 31, the distribution of cold air can be better controlled to ensure that the temperature in the refrigerator and freezer is more uniform.

[0083] The evaporator 31 forms a first angle with the first shelf 41, and the horizontal plane of the evaporator 31 is tilted downward with the horizontal plane, and the first angle (downward tilt angle) is 7°. By forming a certain angle, the surface area of ​​the evaporator 31 in contact with the air can be increased, thereby improving the heat exchange efficiency. In addition, it also helps to better distribute the cold air inside the refrigerator. It is understandable that an adjustment component can also be provided to adjust the first angle between the evaporator 31 and the first shelf 41 through the adjustment component to further optimize the air flow and heat exchange efficiency. The angle of the angle is dynamically adjusted to change the air flow path according to actual needs to adapt to different refrigeration needs.

[0084] In order to prevent the heat from one compartment from being transferred to another compartment, in some embodiments, a heat insulation layer is provided between the first shelf 41 and the second shelf 42, and the heat insulation layer is made of polyurethane. The heat insulation layer is a heat preservation material layer, which is used to reduce heat conduction and prevent heat from being transferred from one compartment to another. The polyurethane material has good heat preservation performance, which can effectively prevent heat transfer and ensure that the temperature of the refrigerator and freezer compartments is more stable.

[0085] Based on the above-mentioned air duct refrigeration system, some embodiments of the present application also provide a refrigerator, including: a first chamber 1 and a second chamber 2, the temperature of the first chamber 1 is in a first range, the temperature of the second chamber 2 is in a second range, and the maximum value of the first range is less than the minimum value of the second range. That is to say, the first chamber 1 and the second chamber 2 are both storage spaces, and the refrigerator includes a box body, the first chamber 1 and the second chamber 2 are both arranged in the box body, the first chamber 1 is a refrigeration chamber, and the second chamber 2 is a freezing chamber. Exemplarily, the temperature zone of the first chamber 1 is a freezing temperature zone, and the first range is -6 to -24°C, and the temperature zone of the second chamber 2 is a refrigeration temperature zone, and the second range is 0 to 10°C.

[0086] A partition 4 is provided between the first compartment 1 and the second compartment 2, and the air duct refrigeration system is provided in the partition 4. It is understandable that the partition 4 is different from the first shelf 41 and the second shelf 42, and the partition 4 is a separate partition for separating the first compartment 1 and the second compartment 2. The first shelf 41 and the second shelf 42 are both connected to the shelf, and in some embodiments, the partition 4 can be a rectangular frame. The air duct refrigeration system is located in the partition 4, providing independent refrigeration effects for the two compartments. Each compartment can maintain its set temperature range, thereby improving the refrigeration efficiency and stability of the refrigerator.

[0087] In some embodiments, the refrigerator further includes: a first temperature sensor, a second temperature sensor, and a controller, wherein the first temperature sensor is disposed in the first compartment 1 to detect the temperature of the first compartment 1; the second temperature sensor is disposed in the second compartment 2 to detect the temperature of the second compartment 2. The first temperature sensor and the second temperature sensor can sense and measure the temperature in the compartment in real time, and convert the temperature signal into an electrical signal and transmit it to the controller.

[0088] The controller is electrically connected to the first temperature sensor, the second temperature sensor, the compressor 32, the refrigeration fan 7, the first air inlet damper 8, the first return air damper 9 and the second air inlet damper 10. As the control center of the refrigerator refrigeration system, the controller receives the temperature signal from the temperature sensor and controls the refrigeration components such as the compressor 32, the refrigeration fan 7, the air inlet damper and the return air damper according to the preset temperature range to achieve a precise refrigeration effect.

[0089] In some embodiments, the controller is configured to:

[0090] Obtain a first temperature result and a second temperature result, the first temperature result being a temperature result detected by the first temperature sensor, and the second temperature result being a temperature result detected by the second temperature sensor;

[0091] If the first temperature result is greater than or equal to the first temperature threshold, and the second temperature result is greater than or equal to the second temperature threshold, an instruction is sent to the first air inlet damper 8, the first return air damper 9 and the second air inlet damper 10 to control the first air inlet damper 8, the first return air damper 9 and the second air inlet damper 10 to open.

[0092] The first temperature sensor monitors the temperature of the first compartment 1 in real time and sends the data to the controller. The second temperature sensor monitors the temperature of the second compartment 2 in real time and sends the data to the controller. The controller receives the first temperature result and the second temperature result. If the first temperature result is greater than or equal to the first temperature threshold, and the second temperature result is greater than or equal to the second temperature threshold, the controller sends instructions to the first air inlet damper 8, the first return air damper 9, and the second air inlet damper 10 to open these dampers. After the dampers are opened, more cold air will be delivered to the first compartment 1 and the second compartment 2.

[0093] The amount of cold air entering and leaving the first compartment 1 is controlled by the first air inlet damper 8 and the first air return damper 9. The amount of cold air entering the second compartment 2 is controlled by the second air inlet damper 10. More cold air will be introduced into the two compartments, and the hot air will flow back into the refrigeration cycle through the return damper, thereby achieving a rapid cooling effect.

[0094] It is understandable that the damper can be opened when needed to avoid unnecessary cold air flow, thereby reducing energy waste and improving energy efficiency. For example, when the temperature is close to the threshold, the damper can be only partially opened to reduce energy consumption; when the temperature is much higher than the threshold, the damper can be fully opened to quickly cool down.

[0095] In some embodiments, the temperature threshold may be dynamically adjusted according to seasonal changes or user usage habits to better adapt to different usage environments.

[0096] In some embodiments, the controller is further configured to:

[0097] Obtain a first temperature result and a second temperature result, the first temperature result being a temperature result detected by the first temperature sensor, and the second temperature result being a temperature result detected by the second temperature sensor;

[0098] If the first temperature result is greater than or equal to the first temperature threshold, and the second temperature result is less than the second temperature threshold, a command is sent to the first air inlet damper 8 and the first return air damper 9 to control the first air inlet damper 8 and the first return air damper 9 to open;

[0099] If the first temperature result is less than the first temperature threshold, and the second temperature result is greater than or equal to the second temperature threshold, a command is sent to the second air inlet damper 10 to control the second air inlet damper 10 to open.

[0100] According to the instructions of the controller, the corresponding damper is opened or closed to adjust the flow of cold air. The amount of cold air entering and leaving the first compartment 1 is controlled by the first air inlet damper 8 and the first air return damper 9. The amount of cold air entering the second compartment 2 is controlled by the second air inlet damper 10.

[0101] In some embodiments, it also includes: a third temperature sensor, which is arranged on the evaporator 31 and is used to detect the temperature of the evaporator 31; the controller is electrically connected to the third temperature sensor, and the controller not only monitors the temperature of the refrigerating chamber and the freezing chamber, but also detects the state of the compressor 32.

[0102] The controller is also configured to:

[0103] Acquire the state of the compressor 32, which includes a running stage and a stopping stage;

[0104] If the state of the compressor 32 is in the stop stage, a third temperature result is obtained, where the third temperature result is a temperature result detected by the third temperature sensor;

[0105] If the third temperature result is less than the temperature threshold, a command is sent to the second air inlet door 10 and the refrigeration fan 7 to control the second air inlet door 10 and the refrigeration fan 7 to open, so as to increase the humidity of the second chamber 2.

[0106] When the temperature of the evaporator 31 is lower than the preset temperature threshold, the controller will turn on the refrigeration fan 7 and the second air inlet door 10. The opening of the refrigeration fan 7 promotes the circulation of air inside the refrigerator, while the opening of the second air inlet door 10 allows more external air to enter the second chamber 2. Since the compressor 32 is in the stop stage at this time, the refrigeration capacity of the evaporator 31 is reduced, and the amount of moisture condensed in the air will also be reduced, thereby retaining more moisture in the air inside the refrigerator, which can increase the humidity of the second chamber 2 to achieve a double-circulation moisturizing effect. Through temperature detection and humidity control, energy consumption can be minimized while ensuring a comfortable environment inside the refrigerator. In addition, since humidity control is performed when the compressor 32 is stopped, no additional refrigeration load is added, further improving the energy saving and efficiency of the refrigerator.

[0107] To further control the humidity of the second chamber 2, in some embodiments, the second chamber 2 further includes a humidity sensor. If the humidity detection result is less than the humidity threshold, an instruction is sent to the refrigeration fan 7 to control the wind speed of the refrigeration fan 7 to be less than the wind speed threshold, so that the flow rate of cold air is slowed down, thereby increasing the humidity; if the humidity detection result is greater than or equal to the humidity threshold, an instruction is sent to the refrigeration fan 7 to control the wind speed of the refrigeration fan 7 to be greater than or equal to the wind speed threshold, so as to speed up the flow of cold air and prevent excessive increase in humidity.

[0108] In addition to wind speed, humidity can also be adjusted by controlling the running time of the refrigeration fan 7. For example, when the compressor 32 stops, a time period can be set to allow the refrigeration fan 7 to run, then shut down for a period of time, and then restart as needed. By adjusting this running and shutting cycle, humidity can be further accurately controlled.

[0109] It can be seen from the above technical solutions that the present application provides a duct refrigeration system and a refrigerator, the duct refrigeration system comprising a duct assembly, a shelf assembly and a refrigeration assembly. The duct assembly comprises a first compartment duct 5 and a second compartment duct 6, the wind direction of the first compartment duct 5 is a first direction, and the wind direction of the second compartment duct 6 is a second direction, the shelf assembly comprises a first shelf 41 and a second shelf 42, the first shelf 41 is connected to the first compartment duct 5, and the second shelf 42 is connected to the second compartment duct 6; the refrigeration assembly comprises an evaporator 31, the evaporator 31 is arranged between the first shelf 41 and the second shelf 42, the refrigeration assembly and the shelf assembly form a heat exchange space, and the evaporator 31 transports cold air to the duct assembly after heat exchange. The refrigerator arranges the duct refrigeration system between the first compartment 1 and the second compartment 2, the evaporator 31 does not occupy the refrigerator volume space alone, and the first compartment 1 and the second compartment 2 are independently refrigerated by controlling the opening and closing of the damper and the refrigeration fan 7.

[0110] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A duct refrigeration system, It is characterized in that include: The air duct assembly comprises a first compartment air duct and a second compartment air duct, wherein the wind direction of the first compartment air duct is a first direction, and the wind direction of the second compartment air duct is a second direction, A shelf assembly, comprising a first shelf and a second shelf, wherein the first shelf is connected to the air duct of the first compartment, and the second shelf is connected to the air duct of the second compartment; The refrigeration component includes an evaporator, which is arranged between the first shelf and the second shelf. The refrigeration component and the shelf component form a heat exchange space. After heat exchange, the evaporator transports cold air to the air duct component.

2. The air duct refrigeration system according to claim 1, It is characterized in that A first air inlet damper is provided at the connection between one end of the first shelf and the first chamber air duct, and a first air return damper is provided at the other end of the first shelf; A second air inlet damper is provided at the connection between one end of the second shelf and the air duct of the second chamber, and a second air return damper is provided at the other end of the second shelf; The first compartment air duct is provided with a first compartment air inlet and a first compartment air outlet, and a first distance is set between the first compartment air inlet and the first compartment air outlet; the second compartment air duct is provided with a second compartment air inlet and a second compartment air outlet, and a second distance is set between the first compartment air inlet and the first compartment air outlet; It also includes a first air return port and a second air return port, wherein the first chamber air inlet, the first chamber air outlet and the first air return port are connected; The second chamber air inlet, the second chamber air outlet and the second air return outlet are connected.

3. The air duct refrigeration system according to claim 1, It is characterized in that The refrigeration assembly also includes: A compressor, one end of the compressor is connected to the evaporator, and the other end of the compressor is connected to a condenser; A capillary tube, one end of which is connected to a condenser, and the other end of which is connected to the evaporator; The refrigeration fan drives the evaporator to exchange heat and transport cold air into the air duct assembly.

4. The air duct refrigeration system according to claim 3, It is characterized in that The first end of the evaporator is connected to the first shelf, the second end of the evaporator is connected to the second shelf, and the temperature of the first end is lower than the temperature of the second end; The evaporator and the first shelf form a first angle.

5. The air duct refrigeration system according to claim 1, It is characterized in that A heat insulation layer is arranged between the first shelf and the second shelf, and the material of the heat insulation layer is polyurethane.

6. A refrigerator, It is characterized in that include: a first chamber, wherein the temperature of the first chamber is in a first range; a second chamber, wherein the temperature of the second chamber is in a second range, and a maximum value of the first range is less than a minimum value of the second range; A partition is provided between the first chamber and the second chamber, and the air duct refrigeration system according to any one of claims 1 to 5 is provided in the partition.

7. The refrigerator according to claim 6, It is characterized in that Also includes: a first temperature sensor, disposed in the first chamber, for detecting the temperature of the first chamber; a second temperature sensor, disposed in the second chamber, for detecting the temperature of the second chamber; The controller is electrically connected to the first temperature sensor, the second temperature sensor, the compressor, the refrigeration fan, the first air inlet damper, the first air return damper and the second air inlet damper.

8. The refrigerator according to claim 7, It is characterized in that The controller is configured to: Acquire a first temperature result and a second temperature result, wherein the first temperature result is a temperature result detected by the first temperature sensor, and the second temperature result is a temperature result detected by the second temperature sensor; If the first temperature result is greater than or equal to the first temperature threshold, and the second temperature result is greater than or equal to the second temperature threshold, an instruction is sent to the first air inlet damper, the first return air damper and the second air inlet damper to control the opening of the first air inlet damper, the first return air damper and the second air inlet damper.

9. The refrigerator according to claim 7, It is characterized in that The controller is also configured to: Acquire a first temperature result and a second temperature result, wherein the first temperature result is a temperature result detected by the first temperature sensor, and the second temperature result is a temperature result detected by the second temperature sensor; If the first temperature result is greater than or equal to a first temperature threshold, and the second temperature result is less than a second temperature threshold, sending an instruction to the first air inlet damper and the first return air damper to control the first air inlet damper and the first return air damper to open; If the first temperature result is less than a first temperature threshold, and the second temperature result is greater than or equal to a second temperature threshold, a command is sent to the second air inlet damper to control the second air inlet damper to open.

10. The refrigerator according to claim 7, It is characterized in that Also includes: a third temperature sensor, disposed on the evaporator, for detecting the temperature of the evaporator; The controller is electrically connected to the third temperature sensor; The controller is also configured to: Acquire the state of the compressor, wherein the state includes a running stage and a stopping stage; If the state of the compressor is in the stop stage, obtaining a third temperature result, where the third temperature result is a temperature result detected by the third temperature sensor; If the third temperature result is less than the temperature threshold, an instruction is sent to the second air inlet door and the cooling fan to control the second air inlet door and the cooling fan to open, so as to increase the humidity of the second chamber.

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