Refrigeration appliance

Abstract

The application provides a refrigeration device. It comprises a storage chamber, an ice chamber arranged in the storage chamber, a first evaporation chamber for supplying cold to the storage chamber, a second evaporation chamber for supplying cold to the ice chamber, a first air supply port communicating the first evaporation chamber and the storage chamber, a first air return port communicating the first evaporation chamber and the storage chamber, a second air supply port communicating the second evaporation chamber and the ice chamber, and a second air return port communicating the second evaporation chamber and the ice chamber. The ratio of the opening area of the first air supply port to the first air return port is less than the ratio of the opening area of the second air supply port to the second air return port. In this way, the pressure in the storage chamber is less than the pressure in the ice chamber, the gas in the storage chamber is prevented from entering the ice chamber, and the cleanliness of the ice chamber is ensured.

Description

Technical Field

[0001] This application relates to the field of home appliances, and more particularly to a refrigeration device. Background Technology

[0002] As users' demands for ice quality increase, more and more refrigerators are equipped with ice-making functions. To avoid odor transfer when ice and food share the same storage space, current technology typically designs the ice compartment as a separate room with its own refrigeration system to improve the cleanliness of ice making. However, in practical applications, existing designs have the following drawbacks: due to potential gaps in the ice compartment walls, gases from outside the ice compartment may enter, contaminating the ice-making environment and affecting the quality and hygiene of the ice. Utility Model Content

[0003] The purpose of this application is to provide a refrigeration device that, by making the ratio of the opening area of ​​the air supply vent to the return vent of the storage chamber smaller than the ratio of the opening area of ​​the air supply vent to the return vent of the ice chamber, can make the pressure in the storage chamber lower than the pressure in the ice chamber, thereby preventing gas from the storage chamber from entering the ice chamber and ensuring the cleanliness of the ice chamber.

[0004] To achieve the above-mentioned objectives, one embodiment of this application provides a refrigeration device, the refrigeration device comprising:

[0005] Storage room;

[0006] An ice room, which is used to house an ice maker and / or an ice storage box, is located in the storage room;

[0007] The first evaporation chamber is used to supply cooling to the storage chamber;

[0008] The second evaporation chamber is used to supply cooling to the ice chamber;

[0009] A first air outlet connects the first evaporation chamber and the storage chamber, through which cold air from the first evaporation chamber flows into the storage chamber;

[0010] The first return air vent connects the first evaporation chamber and the storage chamber, and the gas in the storage chamber flows into the first evaporation chamber through the first return air vent.

[0011] The second air outlet connects the second evaporation chamber and the ice chamber, and the cold air from the second evaporation chamber flows into the ice chamber through the second air outlet.

[0012] The second return air inlet connects the second evaporation chamber and the ice chamber, and the gas in the ice chamber flows into the second evaporation chamber through the second return air inlet;

[0013] The ratio of the opening area of ​​the first air supply outlet to the opening area of ​​the first air return outlet is less than the ratio of the opening area of ​​the second air supply outlet to the opening area of ​​the second air return outlet.

[0014] In one embodiment of this application, the opening area ratio of the first air supply outlet and the first air return outlet is less than 1, and the opening area ratio of the second air supply outlet and the second air return outlet is greater than 1.

[0015] As one embodiment of this application, the refrigeration device includes:

[0016] The first air supply damper cooperates with the first air supply outlet, and the first air supply damper is used to adjust the opening area of ​​the first air supply outlet;

[0017] The first return air damper is used in conjunction with the first return air inlet to adjust the opening area of ​​the first return air inlet.

[0018] The second air supply damper cooperates with the second air supply outlet, and the second air supply damper is used to adjust the opening area of ​​the second air supply outlet;

[0019] The second return air damper, which works in conjunction with the second return air inlet, is used to adjust the opening area of ​​the second return air inlet.

[0020] As one embodiment of this application, the refrigeration device includes:

[0021] A pressure detection device for detecting the pressure in the storage compartment and the ice compartment;

[0022] A damper drive device for driving the first supply air damper, and / or the first return air damper, and / or the second supply air damper, and / or the second return air damper;

[0023] The control module is communicatively connected to the pressure detection device and the damper drive device. The control module is used to control the damper drive device to drive the first supply air damper, and / or the first return air damper, and / or the second supply air damper, and / or the second return air damper according to the detection information of the pressure detection device, so as to adjust the opening area.

[0024] In one embodiment of this application, when the pressure detection device detects that the pressure in the storage chamber is greater than or equal to that in the ice chamber...

[0025] The control module controls the damper drive device to drive the first supply air damper and / or the first return air damper, so as to reduce the opening area ratio of the first supply air outlet and the first return air outlet.

[0026] And / or, the control module controls the drive device to drive the second supply air damper and / or the second return air damper, so as to increase the opening area ratio of the second supply air outlet and the second return air outlet.

[0027] In one embodiment of this application, the storage room is a refrigerator, a freezer, or a variable temperature room.

[0028] As one embodiment of this application, the refrigeration device includes:

[0029] A first evaporator is disposed within the first evaporation chamber;

[0030] The first fan is installed in the first evaporation chamber;

[0031] A second evaporator is disposed within the second evaporation chamber;

[0032] The second fan is located in the second evaporation chamber.

[0033] As one embodiment of this application, the refrigeration device includes:

[0034] The inner liner, which forms the storage compartment inside;

[0035] A duct cover is disposed inside the inner liner. The duct cover and the inner liner wall enclose the first evaporator chamber. The duct cover forms the first air supply outlet and the first air return outlet. The first air supply damper is rotatably disposed on the duct cover. The first air return damper is rotatably disposed on the duct cover.

[0036] In one embodiment of this application, the refrigeration equipment includes a housing disposed in the ice chamber, a second evaporator chamber formed inside the housing, a second air supply outlet and a second air return outlet formed in the housing, a second air supply damper rotatably disposed in the housing, and a second air return damper rotatably disposed in the housing.

[0037] In one embodiment of this application, the pressure detection device includes a first pressure sensor disposed in the storage compartment and a second pressure sensor disposed in the ice compartment, or the pressure detection device includes a differential pressure sensor for detecting the pressure difference between the storage compartment and the ice compartment.

[0038] Compared with the prior art, this application makes the ratio of the opening area of ​​the air supply vent to the return air vent of the storage chamber smaller than that of the air supply vent to the return air vent of the ice chamber. Its advantages are: it can make the pressure in the storage chamber lower than that in the ice chamber, prevent gas from the storage chamber from entering the ice chamber, and ensure the cleanliness of the ice chamber. Attached Figure Description

[0039] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings, wherein:

[0040] Figure 1 This is a schematic diagram of the structure of a refrigeration device according to one embodiment of this application;

[0041] Figure 2 yes Figure 1 A schematic diagram of the central storage room and related structures;

[0042] Figure 3 yes Figure 2 A schematic diagram of the structure for opening the ice gate;

[0043] Figure 4 yes Figure 3 A schematic diagram of the structure after removing the ice door, ice storage box, and other structures;

[0044] Figure 5 yes Figure 1 A schematic diagram of the second evaporation chamber and related structures;

[0045] Figure 6 yes Figure 1 Schematic diagram of the structure of the central duct cover plate;

[0046] Figure 7 yes Figure 6 Schematic diagram of the structure of the central air duct cover and damper;

[0047] Figure 8 yes Figure 5 Schematic diagram of the middle shell and damper.

[0048] Among them, 1. Storage room; 2. Ice room; 21 Ice maker; 22 Ice storage box; 23 Divider; 24 Ice door; 3. First evaporation chamber; 31. First air supply outlet; 32. First air return outlet; 33. First air supply damper; 34. First air return damper; 4. Second evaporation chamber; 41. Second air supply outlet; 42. Second air return outlet; 43. Second air supply damper; 44. Second air return damper; 5. Inner liner; 6. Air duct cover; 7. Shell; 100. Refrigeration equipment. Detailed Implementation

[0049] The present patent will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present patent, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of this patent.

[0050] Reference Figures 1 to 4 This application provides a refrigeration device 100. The refrigeration device 100 includes a storage compartment 1. The storage compartment 1 can be a freezer compartment, a refrigerator compartment, or a variable temperature compartment, etc.

[0051] In this application, the vertical direction refers to the height direction of the refrigeration equipment 100. The front-back direction refers to the depth direction of the refrigeration equipment 100. The left-right direction refers to the width direction of the refrigeration equipment 100.

[0052] The refrigeration equipment 100 includes an ice chamber 2. The ice chamber 2 is used to house an ice maker 21 and / or an ice storage box 22. The ice chamber 2 is disposed within a storage chamber 1. The refrigeration equipment may include a partition 23 disposed within the storage chamber. The partition 23 is spaced apart from the top wall of the storage chamber. The partition 23, along with the left, right, and rear side walls of the storage chamber, forms the ice chamber. An opening is formed at the front end of the ice chamber. The refrigeration equipment may also include an ice door 24 for opening and closing the ice chamber opening. The ice door 24 and the ice storage box can be fixedly connected. When the ice door 24 is pulled outward, the ice storage box 22 is pulled out from the ice chamber opening.

[0053] The refrigeration equipment 100 includes a first evaporation chamber 3. The first evaporation chamber 3 is used to supply cooling to the storage chamber 1. The first evaporation chamber 3 may be located at the back of the storage chamber 1.

[0054] The refrigeration equipment 100 includes a first air outlet 31, which connects the first evaporation chamber 3 and the storage chamber 1. Cold air from the first evaporation chamber 3 flows into the storage chamber 1 through the first air outlet 31. The refrigeration equipment 100 also includes a first return air outlet 32, which connects the first evaporation chamber 3 and the storage chamber 1. Gas from the storage chamber 1 flows into the first evaporation chamber 3 through the first return air outlet 32.

[0055] The refrigeration equipment 100 may include a first evaporator and a first fan disposed in the first evaporation chamber 3. When the first fan is started, it causes the low-temperature gas in the first evaporation chamber 3 to enter the storage chamber 1 through the first air outlet 31, and causes the gas in the storage chamber 1 to enter the first evaporation chamber 3 through the first return air outlet 32, so as to exchange heat with the first evaporator to form low-temperature cold air.

[0056] The refrigeration equipment 100 includes a second evaporation chamber 4. The second evaporation chamber 4 is used to supply cooling to the ice chamber 2. The second evaporation chamber 4 can be installed inside the ice chamber 2.

[0057] The refrigeration equipment 100 includes a second air outlet 41. The second air outlet 41 connects the second evaporation chamber 4 and the ice chamber 2, and cold air from the second evaporation chamber 4 flows into the ice chamber 2 through the second air outlet 41. The refrigeration equipment 100 also includes a second return air outlet 42. The second return air outlet 42 connects the second evaporation chamber 4 and the ice chamber 2, and gas from the ice chamber 2 flows into the second evaporation chamber 4 through the second return air outlet 42.

[0058] The refrigeration equipment 100 includes a first air supply port 31 and a first air return port 32 whose opening area ratio is smaller than the opening area ratio of a second air supply port 41 and a second air return port 42.

[0059] The refrigeration equipment 100 may include a second evaporator and a second fan disposed in the second evaporation chamber 4. When the second fan is started, it causes the low-temperature gas in the second evaporation chamber 4 to enter the ice chamber 2 through the second air inlet 41, and causes the gas in the ice chamber 2 to enter the second evaporation chamber 4 through the second return air inlet 42, so as to exchange heat with the second evaporator to form low-temperature cold air.

[0060] The refrigeration equipment 100 may also include a housing. The refrigeration equipment 100 further includes a machine compartment located at the bottom of the housing, a compressor located within the machine compartment, and a condenser. The compressor and condenser are connected to the first evaporator via refrigerant piping. The compressor and condenser are also connected to the second evaporator via refrigerant piping.

[0061] Cooling is provided by an independent evaporation chamber ice chamber 2, which ensures the cleanliness of the ice chamber 2 and prevents odors from mixing with other chambers of the refrigeration equipment 100.

[0062] In this application, the opening area refers to the cross-sectional area of ​​the opening through which gas can actually flow. Specifically, the opening area does not simply refer to the geometric dimensions of the opening, but rather to the actual effective cross-sectional size that allows airflow during equipment operation. If an adjustment mechanism, such as a damper, is provided at the air supply or return inlet, the opening area should be determined based on the actual opening state of the damper after adjustment.

[0063] In this application, the ratio of the opening areas of the air supply vent and the air return vent of the storage room 1 and the ice room 2 refers to the ratio of the effective opening area of ​​the air supply vent to the effective opening area of ​​the air return vent, determined according to the actual gas flow channel conditions of each.

[0064] In this application, the ratio of the opening areas of the first air supply outlet 31 to the first return air outlet 32 ​​is calculated as follows: the actual area through which gas can flow through the first air supply outlet 31 is divided by the actual area through which gas can flow through the first return air outlet 32. The ratio of the opening areas of the second air supply outlet 41 to the second return air outlet 42 is calculated as follows: the actual area through which gas can flow through the second air supply outlet 41 is divided by the actual area through which gas can flow through the second return air outlet 42.

[0065] The refrigeration equipment 100 provided in this application, by configuring independent air supply and return vents for the storage chamber 1 and the ice chamber 2 respectively, and setting the opening area ratio of the air supply and return vents of the storage chamber 1 to be smaller than that of the air supply and return vents of the ice chamber 2, can form a favorable pressure distribution during equipment operation and improve the cleanliness of the ice-making environment.

[0066] Based on the principle of air flow, during the operation of the refrigeration equipment 100, the first evaporation chamber 3 supplies cold air to the storage chamber 1, and the second evaporation chamber 4 supplies cold air to the ice chamber 2. Each chamber supplies cold air through its air inlet and returns it through its air outlet, forming a closed air circulation. The air pressure inside each space when it reaches a stable state is mainly related to the following two factors: the air supply and exhaust volume, and the flow resistance of the passage, i.e., wind resistance.

[0067] From the perspective of air supply, when the ratio of the opening area of ​​the air supply vent and the return air vent of ice chamber 2 is greater than that of the air supply vent and the return air vent of storage chamber 1, the air supply of ice chamber 2 is relatively larger and the exhaust volume is relatively smaller. As a result, the air pressure inside ice chamber 2 is more likely to be in a relatively high state. On the other hand, the air supply of storage chamber 1 is relatively smaller and the exhaust volume is relatively larger. As a result, the air pressure inside storage chamber 1 is more likely to be in a relatively low state. Therefore, under equilibrium conditions, the air pressure inside ice chamber 2 will be slightly larger than that inside storage chamber 1, forming a slightly positive pressure state between ice chamber 2 and storage chamber 1.

[0068] From the perspective of wind resistance, wind resistance, or airflow resistance, is negatively correlated with the channel area. That is, the smaller the channel area, the greater the wind resistance and pressure drop per unit flow rate; conversely, the larger the channel area, the smaller the wind resistance and pressure drop per unit flow rate. When the ratio of the opening area of ​​the air supply and return vents of ice chamber 2 is greater than that of the air supply and return vents of storage chamber 1, the wind resistance of ice chamber 2 is lower than that of storage chamber 1, and the pressure drop of ice chamber 2 is lower than that of storage chamber 1. Therefore, under stable operating conditions, the internal air pressure of ice chamber 2 will be slightly higher than that of storage chamber 1, creating a slightly positive pressure state in ice chamber 2 relative to storage chamber 1.

[0069] Since gas always flows from high-pressure areas to low-pressure areas, this application controls the ratio of the opening areas of the supply and return air vents of storage chamber 1 and ice chamber 2 to naturally create a pressure gradient during equipment operation. This creates a slight positive pressure inside ice chamber 2, preventing gas from storage chamber 1 from entering the ice-making environment. Because the pressure in ice chamber 2 is higher than that in storage chamber 1, even with tiny structural gaps, airflow will leak from ice chamber 2 to storage chamber 1, preventing gas from storage chamber 1 from entering ice chamber 2. This effectively prevents food odors, moisture, and microbial contamination from storage chamber 1 from entering ice chamber 2, ensuring the cleanliness of the ice-making environment and the quality of the ice.

[0070] In one embodiment of this application, the opening area ratio of the first air supply outlet 31 and the first air return outlet 32 ​​is less than 1. The opening area ratio of the second air supply outlet 41 and the second air return outlet 42 is greater than 1.

[0071] This application sets up independent air supply and return channels for storage room 1 and ice room 2, and specifically limits the ratio of the opening area of ​​the air supply and return vents of each channel, thereby forming a favorable pressure distribution during operation and achieving the technical effect of improving the cleanliness of ice room 2.

[0072] First, during the operation of the refrigeration equipment 100, cold air is delivered into the storage chamber 1 or the ice chamber 2 through the air supply vent, and then returns to the evaporation chamber through the air return vent, thus achieving air circulation within each space. The efficiency of gas flow within the space, and whether a high-pressure or low-pressure state is easily formed inside the space, are closely related to the relative opening areas of the air supply vent and the air return vent.

[0073] In this application, the opening area of ​​the first air inlet 31 in the storage chamber 1 is smaller than the opening area of ​​the first return air inlet 32. This means that the channel for supplying cold air from the first evaporator 3 to the storage chamber 1 is relatively narrow, while the channel for exhausting air from the storage chamber 1 to the return air inlet is relatively wide. This design results in relatively low efficiency in supplying cold air into the storage chamber 1, while high efficiency in exhausting gas. During operation, this restricted air intake and smooth exhaust flow creates a slightly lower air pressure environment inside the storage chamber 1, i.e., a "micro-negative pressure."

[0074] Conversely, the opening area of ​​the second air inlet 41 in ice chamber 2 is larger than that of the second return air inlet 42. This means that the channel for supplying cold air from the second evaporation chamber 4 to ice chamber 2 is relatively wide, while the channel for the return of gas inside ice chamber 2 is relatively narrow. This smooth air supply and high return air resistance structure allows gas to accumulate inside ice chamber 2, making it easier to form a pressure state higher than the outside, i.e., "slight positive pressure".

[0075] The resulting pressure distribution is such that the pressure in ice chamber 2 is higher than that in storage chamber 1. Under these conditions, even if there are unavoidable tiny structural gaps between ice chamber 2 and storage chamber 1, the gas will naturally escape from ice chamber 2 to storage chamber 1 due to the pressure difference, rather than entering ice chamber 2 from storage chamber 1.

[0076] This "unidirectional airflow," generated by controlling the structural supply and return air area ratio, effectively prevents pollutants such as odors, moisture, and microorganisms in storage chamber 1 from entering ice chamber 2, thereby maintaining the cleanliness of the internal environment of ice chamber 2 and effectively ensuring the quality and hygiene safety of the ice produced. Compared to traditional structural isolation achieved solely through physical barriers, this application achieves active air purification control by controlling gas pressure difference. The technology is more reliable, the performance is more stable, and it represents a significant technological advancement.

[0077] Reference Figures 5 to 8 In one embodiment of this application, the refrigeration device 100 includes a first air supply damper 33. The first air supply damper 33 cooperates with a first air outlet 31. The first air supply damper 33 is used to adjust the opening area of ​​the first air outlet 31.

[0078] The refrigeration equipment 100 includes a first return air damper 34. The first return air damper 34 cooperates with a first return air inlet 32. The first return air damper 34 is used to adjust the opening area of ​​the first return air inlet 32.

[0079] The refrigeration equipment 100 includes a second air supply damper 43. The second air supply damper 43 cooperates with a second air outlet 41. The second air supply damper 43 is used to adjust the opening area of ​​the second air outlet 41.

[0080] The refrigeration equipment 100 includes a second return air damper 44. The second return air damper 44 cooperates with a second return air inlet 42. The second return air damper 44 is used to adjust the opening area of ​​the second return air inlet 42.

[0081] This application achieves dynamic control of the opening area by setting adjustable dampers at the air supply and return air inlets of the refrigeration equipment 100, thereby optimizing the gas flow characteristics in the storage compartment 1 and the ice compartment 2, forming a favorable pressure differential distribution, and thus ensuring the cleanliness of the ice compartment 2 environment.

[0082] In the structure of this application, the first air supply outlet 31 and the first air return outlet 32 ​​are respectively provided with a first air supply damper 33 and a first air return damper 34, which are used to regulate the amount of cold air entering the storage chamber 1 and the exhaust efficiency. The second air supply outlet 41 and the second air return outlet 42 are respectively provided with a second air supply damper 43 and a second air return damper 44, which are used to regulate the amount of cold air entering the ice chamber 2 and the exhaust efficiency.

[0083] Setting the first supply air damper 33 to a slightly open state and the first return air damper 34 to a slightly open state allows the storage chamber 1 to form a flow pattern with relatively small supply air volume and smooth exhaust air. In this state, less cold air accumulates inside the storage chamber 1, resulting in a lower gas density and a relatively low air pressure environment.

[0084] Setting the second supply air damper 43 to a fully open state and the second return air damper 44 to a partially open state allows the ice chamber 2 to form a flow pattern with sufficient supply air and relatively restricted exhaust air. In this state, more cold air accumulates inside the ice chamber 2, increasing the gas density and creating a relatively high-pressure environment.

[0085] Through the above adjustments, ice chamber 2 can maintain a slightly positive pressure state during operation, while storage chamber 1 can maintain a slightly negative pressure state. Since gas flow always diffuses from high-pressure areas to low-pressure areas, this pressure difference, jointly set by the structure and dampers, will cause the natural flow of gas to point from ice chamber 2 towards storage chamber 1.

[0086] In this flow mode, even if there is a structural gap between the ice chamber 2 and the storage chamber 1, there will be no phenomenon of gas from the storage chamber 1 entering the ice chamber 2, thus effectively preventing external air, water vapor or odors from affecting the internal environment of the ice chamber 2.

[0087] Therefore, by setting up supply and return air dampers and adjusting their opening degrees appropriately, the air supply and exhaust capacity of each space can be precisely controlled, establishing an actively controllable air pressure difference structure. This design helps maintain the cleanliness of ice room 2 over a long period, improving ice-making quality.

[0088] Reference Figure 4 , Figure 7 , Figure 8 In one embodiment of this application, the refrigeration equipment 100 includes a pressure detection device. The pressure detection device is used to detect the pressure in the storage compartment 1 and the ice compartment 2.

[0089] The refrigeration equipment 100 includes a damper drive device. The damper drive device can be used to drive a first supply air damper 33. The damper drive device can be used to drive a first return air damper 34. The damper drive device can be used to drive a second supply air damper 43. The damper drive device can be used to drive a second return air damper 44. The damper drive device can be used to drive one or more of the first supply air damper 33, the first return air damper 34, the second supply air damper 43, and the second return air damper 44.

[0090] The refrigeration equipment 100 includes a control module, which is communicatively connected to a pressure detection device and a damper drive device. The control module is used to control the damper drive device to drive the first supply air damper 33, and / or the first return air damper 34, and / or the second supply air damper 43, and / or the second return air damper 44 according to the detection information of the pressure detection device, so as to adjust the opening area.

[0091] In this embodiment, the refrigeration equipment 100 constructs an automated adjustment mechanism through a pressure detection device, a damper drive device, and a control module to dynamically control the pressure relationship between the storage chamber 1 and the ice chamber 2, thereby continuously maintaining the clean environment of the ice chamber 2.

[0092] The pressure detection device is used to acquire the gas pressure values ​​in storage compartment 1 and ice compartment 2 in real time. By continuously monitoring the gas pressure in these two spaces, the current operating status of the refrigeration system and the pressure difference distribution can be accurately reflected.

[0093] The damper drive device is connected to each damper installed at the air supply and return inlet, including one or more dampers that can drive the first air supply damper 33, the first return air damper 34, the second air supply damper 43, and the second return air damper 44. The opening and closing state of the dampers is controlled by the drive device, which can achieve precise adjustment of the opening area.

[0094] The control module is connected in communication with the pressure detection device and the damper drive device. It uses the detected pressure data as a feedback signal and issues commands to the damper drive device according to the preset differential pressure control strategy, thereby adjusting the opening angle or opening area of ​​each damper.

[0095] During system operation, when the control module detects that the internal pressure of the ice chamber 2 is insufficient to maintain the set pressure difference range relative to the storage chamber 1, it can automatically control: appropriately increase the opening of the second air supply damper 43 or decrease the opening of the second return air damper 44 to increase the air supply to the ice chamber 2 and reduce the exhaust volume, thereby increasing the air pressure inside the ice chamber 2; or correspondingly decrease the opening of the first air supply damper 33 and increase the opening of the first return air damper 34 to reduce the air pressure in the storage chamber 1.

[0096] Through the above dynamic adjustment, the control module can keep the ice chamber 2 at the expected positive pressure state relative to the storage chamber 1, thereby ensuring that the airflow direction of the ice chamber 2 is constant during long-term operation, that is, the gas is always slightly depressurized from the ice chamber 2 to the storage chamber 1, preventing the gas in the storage chamber 1 from entering the ice chamber 2.

[0097] An automated regulation system, consisting of a pressure detection device, a damper drive device, and a control module, enables closed-loop control of the pressure relationship between storage chamber 1 and ice chamber 2, maintaining an ideal clean and high-pressure environment in ice chamber 2 under different operating conditions. This solution possesses adaptive capabilities, adjustment flexibility, and stable cleanliness control, providing a reliable guarantee for high-quality ice making.

[0098] In one embodiment of this application, the pressure detection device includes a first pressure sensor disposed in the storage chamber 1 and a second pressure sensor disposed in the ice chamber 2. The pressure detection device can consist of two independently disposed pressure sensors. The two sensors are respectively located in the storage chamber 1 and the ice chamber 2, and are used to measure the actual air pressure value of their respective spaces. In this structure, each sensor outputs pressure data for its corresponding space independently. The control module compares and calculates the outputs of the two sensors to obtain the current pressure difference value, and controls the adjustment direction and amplitude of the damper accordingly.

[0099] In another embodiment of this application, the pressure detection device may include a differential pressure sensor for detecting the pressure difference between the storage compartment 1 and the ice compartment 2. The pressure detection device may be a differential pressure sensor with two pressure inlets connected to the storage compartment 1 and the ice compartment 2 respectively. This sensor directly outputs the pressure difference between the two compartments, eliminating the need for a control module to perform difference calculations.

[0100] Reference Figure 4 , Figure 7 , Figure 8 In one embodiment of this application, when the pressure detection device detects that the pressure in the storage chamber 1 is greater than or equal to that in the ice chamber 2, the control module can control the damper drive device to drive the first supply air damper 33 and / or the first return air damper 34, so as to reduce the opening area ratio of the first supply air outlet 31 and the first return air outlet 32.

[0101] When the pressure detection device detects that the pressure in storage chamber 1 is greater than or equal to that in ice chamber 2, the control module can control the drive device to drive the second air supply damper 43 and / or the second return air damper 44, so as to increase the opening area ratio of the second air supply outlet 41 and the second return air outlet 42.

[0102] Under normal operating conditions, ice chamber 2 should always maintain a slightly positive pressure relative to storage chamber 1 to ensure that the gas flow direction is from ice chamber 2 to storage chamber 1, thereby preventing air in storage chamber 1 that may carry odors, moisture or particles from entering ice chamber 2 and ensuring a clean ice-making environment.

[0103] When the pressure detection device detects that the air pressure in storage chamber 1 is greater than or equal to that in ice chamber 2, it indicates that the relative positive pressure in ice chamber 2 has disappeared or even a reverse pressure difference has appeared, which may cause gas in storage chamber 1 to flow back into ice chamber 2, affecting the quality of the ice. In this case, the control module automatically triggers the following adjustment logic.

[0104] The first adjustment logic is to adjust either the first return air damper 34 or the first supply air damper 33 to reduce the ratio of the supply and return air opening areas of storage chamber 1. The control module controls the damper drive device to reduce the opening of the first supply air damper 33 or increase the opening of the first return air damper 34, thereby reducing the supply of cold air to storage chamber 1 and enhancing the return and exhaust air capacity. This adjustment will make the airflow in storage chamber 1 thinner, thereby reducing the air pressure in storage chamber 1 and pushing the system to restore the target state of high pressure in ice chamber 2 and low pressure in storage chamber 1.

[0105] The second adjustment logic is to adjust either the second return air damper 44 or the second supply air damper 43 to increase the ratio of the supply and return air opening areas of the ice chamber 2. The control module can also synchronously or alternatively control the damper drive to increase the opening of the second supply air damper 43 or decrease the opening of the second return air damper 44, resulting in a stronger cold air supply and restricted exhaust in the ice chamber 2. This operation helps to increase the gas concentration and pressure inside the ice chamber 2, further expanding the pressure difference between the ice chamber 2 and the storage chamber 1.

[0106] By individually or in combination executing the aforementioned damper adjustment actions, automatic compensation adjustments can be made immediately upon detecting a reversal trend in differential pressure, thereby quickly restoring the slightly positive pressure state of ice chamber 2. This application establishes a damper linkage adjustment mechanism based on differential pressure feedback, ensuring positive pressure in ice chamber 2 at the structural level and achieving dynamic compensation at the control level. This improves the system's stability, intelligence, and cleanliness control effect, significantly outperforming traditional solutions that rely on structural sealing or passive airflow management.

[0107] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6In one embodiment of this application, the refrigeration device 100 includes an inner liner 5, and a storage chamber 1 is formed inside the inner liner 5. The refrigeration device 100 includes an air duct cover 6. The air duct cover 6 is disposed inside the inner liner 5. The air duct cover 6 and the wall of the inner liner 5 enclose a first evaporation chamber 3. The air duct cover 6 forms a first air supply port 31 and a first air return port 32. A first air supply damper 33 is rotatably disposed on the air duct cover 6. A first air return damper 34 is rotatably disposed on the air duct cover 6.

[0108] Reference Figures 4 to 8 In one embodiment of this application, the refrigeration device 100 includes a housing 7 disposed within an ice chamber 2. A second evaporation chamber 4 is formed inside the housing 7. The housing 7 forms a second air supply port 41 and a second air return port 42. A second air supply damper 43 is rotatably disposed on the housing 7. A second air return damper 44 is rotatably disposed on the housing 7.

[0109] The refrigeration equipment 100 in this application can be a refrigerator, a freezer, a display case, etc.

[0110] In summary, the refrigeration equipment 100 of this application can solve the technical problem in the prior art that external gases may enter the interior of the ice chamber 2, thereby contaminating the ice-making environment and affecting the quality and hygiene safety of the ice.

[0111] By employing the technical solution of this application, a pressure gradient can be naturally formed during equipment operation by controlling the ratio of the opening areas of the air supply and return vents of the storage chamber 1 and the ice chamber 2. This pressure gradient, present as a slight positive pressure inside the ice chamber 2, prevents gas from the storage chamber 1 from entering the ice-making environment. Since the pressure in the ice chamber 2 is higher than that in the storage chamber 1, even with minute structural gaps, airflow will leak from the ice chamber 2 to the storage chamber 1, preventing gas from the storage chamber 1 from entering the ice chamber 2. This effectively prevents food odors, moisture, and microbial contamination from the storage chamber 1 from entering the ice chamber 2, ensuring the cleanliness of the ice-making environment and the quality of the ice.

[0112] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0113] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this patent, and are not intended to limit the scope of protection of this patent. All equivalent implementation methods or modifications that do not depart from the spirit of the technology of this patent should be included within the scope of protection of this patent.

Claims

1. A refrigeration device (100), characterized in that, The refrigeration equipment (100) includes: Storage room (1); An ice chamber (2) is provided for housing an ice maker (21) and / or an ice storage box (22), the ice chamber (2) being located within the storage chamber (1); The first evaporation chamber (3) is used to supply cooling to the storage chamber (1); The second evaporation chamber (4) is used to supply cooling to the ice chamber (2); The first air outlet (31) is connected to the first evaporation chamber (3) and the storage chamber (1), and the cold air from the first evaporation chamber (3) flows into the storage chamber (1) through the first air outlet (31). The first return air vent (32) connects the first evaporation chamber (3) and the storage chamber (1), and the gas in the storage chamber (1) flows into the first evaporation chamber (3) through the first return air vent (32); The second air outlet (41) connects the second evaporation chamber (4) and the ice chamber (2), and the cold air from the second evaporation chamber (4) flows into the ice chamber (2) through the second air outlet (41). The second return air inlet (42) connects the second evaporation chamber (4) and the ice chamber (2), and the gas in the ice chamber (2) flows into the second evaporation chamber (4) through the second return air inlet (42); The ratio of the opening area of ​​the first air supply outlet (31) to the opening area of ​​the first air return outlet (32) is smaller than the ratio of the opening area of ​​the second air supply outlet (41) to the opening area of ​​the second air return outlet (42).

2. The refrigeration equipment (100) as described in claim 1, characterized in that, The opening area ratio of the first air supply outlet (31) and the first return air outlet (32) is less than 1, and the opening area ratio of the second air supply outlet (41) and the second return air outlet (42) is greater than 1.

3. The refrigeration equipment (100) as described in claim 2, characterized in that, The refrigeration equipment (100) includes: The first air supply damper (33) cooperates with the first air supply outlet (31) and the first air supply damper (33) is used to adjust the opening area of ​​the first air supply outlet (31); The first return air damper (34) cooperates with the first return air inlet (32), and the first return air damper (34) is used to adjust the opening area of ​​the first return air inlet (32); The second air supply damper (43) cooperates with the second air supply outlet (41) and is used to adjust the opening area of ​​the second air supply outlet (41); The second return air damper (44) cooperates with the second return air inlet (42) and is used to adjust the opening area of ​​the second return air inlet (42).

4. The refrigeration equipment (100) as described in claim 3, characterized in that, The refrigeration equipment (100) includes: A pressure detection device for detecting the pressure in the storage chamber (1) and the ice chamber (2); A damper drive device for driving the first supply air damper (33), and / or the first return air damper (34), and / or the second supply air damper (43), and / or the second return air damper (44). The control module is communicatively connected to the pressure detection device and the damper drive device. The control module is used to control the damper drive device to drive the first supply air damper (33), and / or the first return air damper (34), and / or the second supply air damper (43), and / or the second return air damper (44) according to the detection information of the pressure detection device, so as to adjust the opening area.

5. The refrigeration equipment (100) as described in claim 4, characterized in that, When the pressure detection device detects that the pressure in the storage chamber (1) is greater than or equal to the pressure in the ice chamber (2), The control module controls the damper drive device to drive the first supply air damper (33) and / or the first return air damper (34) to reduce the opening area ratio of the first supply air outlet (31) and the first return air outlet (32); And / or, the control module controls the drive device to drive the second air supply damper (43) and / or the second return air damper (44) to increase the opening area ratio of the second air supply port (41) and the second return air port (42).

6. The refrigeration equipment (100) as described in claim 1, characterized in that, The storage room (1) is a refrigerator, a freezer, or a variable temperature room.

7. The refrigeration equipment (100) as described in claim 1, characterized in that, The refrigeration equipment (100) includes: The first evaporator is disposed in the first evaporation chamber (3); The first fan is located inside the first evaporation chamber (3); The second evaporator is disposed in the second evaporation chamber (4); The second fan is located inside the second evaporation chamber (4).

8. The refrigeration equipment (100) as described in claim 3, characterized in that, The refrigeration equipment (100) includes: The inner liner (5) forms the storage chamber (1) inside it; A duct cover (6) is disposed inside the inner liner (5). The duct cover (6) and the inner liner (5) wall surround the first evaporation chamber (3). The duct cover (6) forms the first air supply port (31) and the first air return port (32). The first air supply damper (33) is rotatably disposed on the duct cover (6). The first air return damper (34) is rotatably disposed on the duct cover (6).

9. The refrigeration equipment (100) as described in claim 3, characterized in that, The refrigeration equipment (100) includes a housing (7) disposed inside the ice chamber (2), the second evaporation chamber (4) is formed inside the housing (7), the housing (7) forms a second air supply port (41) and a second air return port (42), the second air supply damper (43) is rotatably disposed on the housing (7), and the second air return damper (44) is rotatably disposed on the housing (7).

10. The refrigeration equipment (100) as described in claim 4, characterized in that, The pressure detection device includes a first pressure sensor disposed in the storage chamber (1) and a second pressure sensor disposed in the ice chamber (2), or the pressure detection device includes a differential pressure sensor for detecting the pressure difference between the storage chamber (1) and the ice chamber (2).

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