Air-cooled refrigerator

Abstract

This invention provides a frost-free refrigerator, comprising: a cabinet including a refrigerator compartment; a first cover plate located inside the cabinet, with the refrigerator compartment located on one side of the first cover plate; an air duct located on the other side of the first cover plate, the air duct having an air outlet and an air inlet, the air outlet communicating with the refrigerator compartment, and the air inlet for supplying cold air to the air duct; a temperature sensing component for sensing the temperature of the refrigerator compartment, the temperature sensing component controlling the opening and closing of the air outlet and / or the air inlet based on the sensed temperature; and micro-vents for the temperature sensing component, used to cool the temperature sensing component and supply air to the refrigerator compartment, causing the temperature sensing component to control the air outlet and / or the air inlet to close based on the sensed temperature. This invention can prevent temperature fluctuations in the refrigerator compartment of the frost-free refrigerator, achieving constant temperature control of the refrigerator compartment.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to an air-cooled refrigerator. Background Technology

[0002] The refrigerator compartment of a frost-free refrigerator provides a good storage space for fresh food. Currently, frost-free refrigerators typically cool the refrigerator compartment in the following way: a sensor located in the compartment senses the temperature and controls the opening and closing of the air vent to supply cold air. For example, when the temperature sensed by the sensor reaches a first temperature, the air vent opens, supplying cold air to the compartment and cooling it. When the temperature sensed by the sensor falls below a second temperature, the air vent closes, and the compartment heats up. Therefore, in this method, the temperature in the refrigerator compartment fluctuates due to the on / off cycle, resulting in a fluctuating temperature curve. This makes the preservation effect less than ideal, posing a significant challenge to the preservation of fruits and vegetables. Summary of the Invention

[0003] The purpose of this application is to provide a frost-free refrigerator that solves the technical problem of temperature fluctuations in the refrigerator compartment of frost-free refrigerators in related technologies.

[0004] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0005] According to one aspect of this application, a frost-free refrigerator is provided, comprising: a cabinet including at least one refrigerator compartment; a first cover plate located inside the cabinet, with the refrigerator compartment located on one side of the first cover plate; an air duct located on the other side of the first cover plate, the air duct having at least one air outlet and at least one air inlet, the air outlet communicating with the refrigerator compartment, the air inlet for supplying cold air to the air duct, the air outlet and / or the air inlet being an openable and closable damper; a temperature sensing component for sensing the temperature of the refrigerator compartment, the temperature sensing component controlling the opening and closing of the air outlet and / or the air inlet based on the sensed temperature; and micro-vents of the temperature sensing component for cooling the temperature sensing component and supplying air to the refrigerator compartment, such that the temperature sensing component controls the closing of the air outlet and / or the air inlet based on the sensed temperature.

[0006] In some embodiments of this application, the air duct is provided with a plurality of micro-air holes, and the temperature sensing component micro-air hole is one of the plurality of micro-air holes. The micro-air hole is connected to the refrigerator compartment, and the ventilation area of ​​the air source hole corresponding to the micro-air hole is fixed. When the constant temperature mode of the refrigerator compartment is activated, the air outlet and / or the air inlet are closed, and cold air is delivered to the refrigerator compartment through the micro-air hole.

[0007] In some embodiments of this application, the sum of the ventilation areas of each of the air outlets and the sum of the ventilation areas of each of the air inlets are greater than the sum of the ventilation areas of each of the micro-vents.

[0008] In some embodiments of this application, the air inlet is an openable and closable damper, and the air duct is also provided with an air inlet corresponding to the micro air hole. The air inlet is the air source hole. When the constant temperature mode of the refrigerator is activated, the air inlet is closed, and cold air is delivered to the micro air hole through the air inlet.

[0009] In some embodiments of this application, each of the micro-vents is an openable and closable damper. When the constant temperature mode of the refrigerator compartment is activated, the micro-vents open and supply cold air to the refrigerator compartment through the micro-vents.

[0010] In some embodiments of this application, the air outlet is an openable and closable damper, and the air inlet of the air duct is an air source hole corresponding to the micro-vent. When the constant temperature mode of the refrigerator is activated, the air outlet is closed, and cold air is delivered to the micro-vent through the air inlet, so as to deliver cold air to the refrigerator through the micro-vent.

[0011] In some embodiments of this application, the refrigeration compartment includes a plurality of sub-chambers, each of the sub-chambers communicating with at least one of the micro-vents.

[0012] In some embodiments of this application, the housing further includes a base for placing the air-cooled refrigerator, and the sub-chambers are arranged in layers, with the sum of the ventilation areas of the micro-ventilation holes connected to each sub-chamber increasing sequentially from the direction closest to the base to the direction furthest from the base.

[0013] In some embodiments of this application, the micro-ventilation holes are dampers with adjustable opening areas, and the sum of the ventilation areas of each air outlet and the sum of the ventilation areas of each air inlet are greater than the sum of the maximum adjustable opening areas of each micro-ventilation hole.

[0014] In some embodiments of this application, a decorative panel is further provided between the first cover plate and the refrigerator compartment. The decorative panel is provided with decorative holes that match each micro-ventilation hole, and the cold air flowing out from the micro-ventilation hole enters the refrigerator compartment through the decorative holes.

[0015] As can be seen from the above technical solutions, the embodiments of this application have at least the following advantages and positive effects:

[0016] The air-cooled refrigerator of this embodiment has an air outlet and an air inlet in its air duct. The air outlet is connected to the refrigerator compartment, while the air inlet is used to supply cold air into the air duct. The air outlet and / or air inlet are closable dampers. The air-cooled refrigerator also includes a temperature sensing component for sensing the temperature of the refrigerator compartment. The temperature sensing component controls the opening and closing of the air outlet and / or air inlet based on the sensed temperature, allowing the refrigerator compartment to perform cooling in normal mode. Simultaneously, the air-cooled refrigerator also includes micro-vents for the temperature sensing component, used to cool the temperature sensing component and supply air to the refrigerator compartment. The temperature sensing component controls the air outlet and / or air inlet to close based on the sensed temperature, and the air outlet no longer supplies cold air to the refrigerator compartment; only the micro-vents of the temperature sensing component supply air to the refrigerator compartment. This avoids temperature fluctuations in the refrigerator compartment, achieving a constant temperature and improving the preservation effect while meeting the user's normal refrigeration needs. Attached Figure Description

[0017] Figure 1A This is a temperature operating curve of the refrigerator compartment in a frost-free refrigerator according to an embodiment of the present application.

[0018] Figure 1B This is a temperature operating curve of the refrigerator compartment of an air-cooled refrigerator according to an embodiment of this application;

[0019] Figure 2A This is a perspective view of an air-cooled refrigerator according to an embodiment of this application;

[0020] Figure 2B This is a perspective view of a frost-free refrigerator with the refrigerator door removed, according to one embodiment of this application.

[0021] Figure 3 This is a rear view of a frost-free refrigerator according to an embodiment of this application, after the rear wall of the refrigerator compartment has been removed;

[0022] Figure 4 This is a schematic diagram of the cold air flow direction of an air-cooled refrigerator according to an embodiment of this application;

[0023] Figure 5 This is a side view of the first cover of a frost-free refrigerator according to an embodiment of this application;

[0024] Figure 6 This is an exploded view of the air duct of an air-cooled refrigerator according to an embodiment of this application;

[0025] Figure 7 This is an exploded view of the first cover and air duct foam of an air-cooled refrigerator according to an embodiment of this application;

[0026] Figure 8A This is an exploded view of the decorative panel and the first cover plate of an air-cooled refrigerator according to an embodiment of this application;

[0027] Figure 8B This is a rear view of the decorative panel of a frost-free refrigerator according to one embodiment of this application.

[0028] The annotations in the attached figures are explained as follows:

[0029] a) First temperature operating curve; b) Second temperature operating curve;

[0030] 100. Air-cooled refrigerator; 101. Cabinet; 110. Refrigerator compartment; 111. Refrigerator compartment; 112. Multi-functional drawer; 1121. Wet and dry drawer; 1122. Small variable temperature drawer; 113. Evaporator; 114. Second cover; 1141. Fan air inlet; 1142. Air inlet; 115. First cover; 1151. Temperature sensing element; 1152. Air outlet; 1153. Return air inlet; 115 4. Micro-vent; 11521. First air outlet; 11522. Second air outlet; 116. Air duct foam; 1161. First air duct opening; 1162. Second air duct opening; 1163. Third air duct opening; 1164. Fourth air duct opening; 1165. Air inlet mating part; 1166. Air inlet hole; 1167. Fan; 120. Freezer compartment; 117. Decorative panel; 1171. Decorative hole; 118. Air duct. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The refrigerator compartment of the air-cooled refrigerator disclosed in this application provides a good storage place for fresh food. In related technologies, the refrigerator compartment of an air-cooled refrigerator is generally cooled in the following way: a sensing element installed in the refrigerator compartment senses the temperature, and controls the opening and closing of the refrigerator air damper used to supply cold air to the refrigerator compartment based on the sensed temperature.

[0036] However, in this way, the temperature operating curve of the refrigerator compartment of the air-cooled refrigerator shows a fluctuating phenomenon. Figure 1A This is a temperature operating curve of the refrigerator compartment in a frost-free refrigerator according to an embodiment of this application. Figure 1A It can be seen that in related technologies, the temperature operating curve of the refrigerator compartment in a frost-free refrigerator is the first temperature operating curve a, meaning that the internal temperature of the refrigerator compartment fluctuates continuously during cooling. The possible reasons for this phenomenon are:

[0037] 1. The sensor controls the opening and closing of the refrigerator door, which corresponds to two temperatures, and there is a temperature difference between these two temperatures.

[0038] 2. The inherent sensitivity and error of the sensing element itself.

[0039] This results in significant temperature fluctuations and unsatisfactory preservation effects in the refrigeration methods used in related technologies for cold storage compartments.

[0040] An embodiment of this application provides an air-cooled refrigerator, which achieves cooling by driving cold air to flow inside.

[0041] Figure 2A This is a perspective view of a frost-free refrigerator according to an embodiment of this application. Please refer to... Figure 2A The air-cooled refrigerator 100 includes a cabinet 101, which further includes a refrigerator compartment 110 and a freezer compartment 120, which are defined by the cabinet 101 of the air-cooled refrigerator 100. Figure 2B This is a perspective view of a frost-free refrigerator with the refrigerator door removed, according to one embodiment of this application. Please refer to... Figure 2BThe cold storage compartment 110 further includes a cold storage compartment 111 and a multi-functional drawer 112, with the cold storage compartment 111 located above the multi-functional drawer 112. The cold storage compartment 111 provides normal refrigeration and has a large space, thus it can store some large-volume foods or foods that only require ordinary refrigeration. The multi-functional drawer 112 can provide functions beyond normal refrigeration. For example, the multi-functional drawer 112 may include a wet / dry drawer 1121 and a small variable-temperature drawer 1122. The wet / dry drawer 1121 can provide refrigeration while controlling humidity, while the small variable-temperature drawer 1122 provides a different temperature range for storage than the temperature range inside the cold storage compartment 111. For example, the temperature inside the small variable-temperature drawer 1122 can be lower than the temperature inside the cold storage compartment 111. Separate air ducts or dampers can be provided for the cold storage compartment 111, the wet / dry drawer 1121, and the small variable-temperature drawer 1122 for refrigeration.

[0042] Figure 4 This is a schematic diagram illustrating the cold air flow direction of a frost-free refrigerator according to one embodiment of this application. Please refer to [link / reference]. Figure 4 Specifically, the interior of the housing 101 also includes a first cover plate 115, with the refrigerator compartment 111 located on one side of the first cover plate 115 and the air duct 118 located on the other side of the first cover plate 115. It is a structure for air circulation formed by solid components. In fact, the air duct 118 is formed by the second cover plate 114, the first cover plate 115, and the components between them. Figure 3 This is a rear view of a frost-free refrigerator according to one embodiment of this application, after removing the rear wall of the refrigerator compartment 110. The rear wall of the refrigerator compartment 110 may be part of the cabinet 101 of the frost-free refrigerator 100. Please refer to... Figure 3 After removing the rear wall of the refrigerator compartment 110, the air-cooled refrigerator 100 is provided with an evaporator 113 and a second cover plate 114 in sequence. That is, the evaporator 113 is located between the second cover plate 114 and the rear wall of the refrigerator compartment 110. This space is the space for the evaporator 113 to cool, which is the evaporator compartment. The first cover plate 115 is the front cover plate of the air duct 118 of the air-cooled refrigerator 100, and the second cover plate 114 is the rear cover plate of the air duct 118 of the air-cooled refrigerator 100.

[0043] Please continue reading Figure 4 The air in the evaporator compartment is cooled by the evaporator 113 to form cold air, which enters the refrigerator compartment 111 and the multi-functional drawer 112 through the air duct 118 set between the second cover plate 114 and the first cover plate 115 for cooling. Excess air in the refrigerator compartment 111 and the multi-functional drawer 112 will return to the evaporator compartment through the first cover plate 115 for cooling again, thus forming a circulation path for cooling the refrigerator compartment 110.

[0044] Figure 5This is a side view of the first cover of a frost-free refrigerator according to an embodiment of this application. Figure 6 This is an exploded view of the air duct of a frost-free refrigerator according to an embodiment of this application. Figure 7 This is an exploded view of the first cover and air duct foam of a frost-free refrigerator according to an embodiment of this application. The air duct 118 of the frost-free refrigerator is provided with at least one air outlet and at least one air inlet. For details, please refer to... Figure 5 , Figure 6 and Figure 7 The air outlets 1152 on the side wall of the first cover plate 115 of the air duct 118 specifically include four air outlets: a first air outlet 11521, a second air outlet 11522, a third air outlet, and a fourth air outlet. The third and fourth air outlets are not shown in the figure. They can be located on the side wall of the first cover plate 115 symmetrical to the side wall where the first air outlet 11521 is located, with the first air outlet 11521 and the second air outlet 11522 respectively arranged symmetrically. The air outlets 1152 on the side wall of the first cover plate 115 of the air duct 118 are connected to the refrigerator compartment 111, allowing cold air to enter the refrigerator compartment 111 through the air outlets 1152.

[0045] Please continue reading Figure 6 and Figure 7The air duct 118 is confined between the first cover plate 115 and the second cover plate 114, and the air duct foam 116 is included between the first cover plate 115 and the second cover plate 114, and most of the air duct 118 is confined by the air duct foam 116. The air duct foam 116 includes a first air duct opening 1161, a second air duct opening 1162, a third air duct opening 1163, and a fourth air duct opening 1164. These four air duct openings are outlets for air to be transported outward from the air duct 118, which is restricted by the air duct foam 116. They can correspond to the first air outlet 11521, the second air outlet 11522, the third air outlet, and the fourth air outlet, respectively. That is, the cold air entering the air duct 118 is transported to the first air outlet 11521, the cold air entering the second air duct opening 1162 is transported to the second air outlet 11522, and so on. This allows the cold air entering the air duct 118 to be transported to the air outlet 1152 and then into the cold storage compartment 111. Within the duct foam 116, an air inlet fitting part 1165 and a fan embedding part are formed through structural constraints. A fan 1167 is embedded within the fan embedding part. The air inlet fitting part 1165 serves as the main passage for the cold air driven by the fan 1167 to flow to each duct opening. The second cover plate 114 of the duct 118 is provided with a fan air inlet channel opening 1141 and an air inlet 1142 that cooperate with the fan 1167. The air inlet 1142 is used to supply cold air to the duct 118. The air inlet 1142 is embedded in the air inlet fitting part 1165 within the duct foam 116, cooperating with the air inlet fitting part 1165 to make the air inlet 1142 the main passage for the cold air driven by the fan 1167 to flow to each duct opening. Driven by the fan 1167, cold air is input through the fan inlet 1141 to the inlet 1142, and then transported to each duct opening through each duct path.

[0046] Additionally, please see Figure 6 and Figure 7 The first cover plate 115 of the air duct 118 also includes a return air vent 1153. Thus, based on the above structure, the refrigerator compartment 111 of the air-cooled refrigerator 100 can achieve a cooling cycle in normal mode, which mainly involves the following process:

[0047] 1. Evaporator 113 cools the air in the evaporator compartment, thereby forming cold air;

[0048] 2. The cold air in the evaporator compartment enters the air duct 118, which is restricted by the air duct foam 116, through the fan inlet 1141;

[0049] 3. Driven by the fan 1167, cold air enters the air inlet 1142 and is transported to each air duct opening through each air duct path, and is then transported to the cold storage compartment 111 from the air outlet 1152.

[0050] 4. Some of the air inside the refrigerator compartment 111 enters the evaporator compartment through the return air vent 1153 for further cooling.

[0051] Although the above structure already enables the refrigeration function of the refrigerator compartment 111—for example, the air inlet 1142 or air outlet 1152 can be opened and closed as dampers, and refrigeration is achieved by timed opening and closing of the air inlet 1142 or air outlet 1152—in order to regulate the temperature inside the refrigerator compartment 111 or maintain the temperature within the refrigerator compartment 111 within a stable range, thus enabling the refrigerator compartment 111 to perform normal refrigeration functions, a temperature sensing component, such as a temperature sensor, is typically installed to sense the temperature of the refrigerator compartment 111. Simultaneously, the air outlet 1152 or air inlet 1142 is configured as an openable and closable damper, or both the air outlet 1152 and air inlet 1142 are configured as openable and closable dampers. The temperature sensing component controls the opening and closing of the air outlet 1152 and / or air inlet 1142 based on the sensed temperature. Please refer to [link to relevant documentation]. Figure 5 and Figure 6 The temperature sensing element 1151 is disposed on the side wall of the first cover plate 115, and the first cover plate 115 is assembled so that the temperature sensing element 1151 on the side wall comes into contact with the air inside the refrigerator compartment 111. Thus, when the refrigerator compartment 111 is activated in normal mode, the refrigerator compartment 111 can regulate its temperature through the following process:

[0052] 1. If the temperature sensed by the temperature sensing component 1151 reaches a first temperature, such as 6 degrees Celsius, the air outlet 1152 and / or the air inlet 1142 open, supplying cold air to the refrigerator compartment 111 through the air outlet 1152. The cold air enters the refrigerator compartment 111 and cools it. At this time, the opening status of the air outlet 1152 and the air inlet 1142 may be as follows: First, only the air outlet 1152 is an openable and closable damper, and the air inlet 1142 is an open fixed solid structure, so the air outlet 1152 is open; Second, only the air inlet 1142 is an openable and closable damper, and the air outlet 1152 is an open fixed solid structure, so the air inlet 1142 is open; Third, both the air inlet 1142 and the air outlet 1152 are openable and closable dampers, so both the air inlet 1142 and the air outlet 1152 are open.

[0053] 2. If the temperature sensed by the temperature sensing component 1151 is lower than the second temperature, for example, 1 degree Celsius, the air outlet 1152 and / or the air inlet 1142 are closed, and cold air can no longer enter the refrigerator compartment 111 through the air outlet 1152 and / or the air inlet 1142, and the refrigerator compartment 111 is heated, wherein the first temperature is greater than or equal to the second temperature. At this time, the closure status of the air outlet 1152 and the air inlet 1142 may be one of the following: First, only the air outlet 1152 is an openable and closable damper, and the air inlet 1142 is an open fixed solid structure, so the air outlet 1152 is closed; Second, only the air inlet 1142 is an openable and closable damper, and the air outlet 1152 is an open fixed solid structure, so the air inlet 1142 is closed; Third, both the air inlet 1142 and the air outlet 1152 are openable and closable dampers, and both the air inlet 1142 and the air outlet 1152 are closed, or any one of the air inlet 1142 and the air outlet 1152 is closed.

[0054] Specifically, the air-cooled refrigerator 100 is also equipped with a micro-vent for cooling the temperature sensing component 1151. The micro-vent is located close to the temperature sensing component 1151 and is a closable damper. When the refrigerator compartment 111 is in normal mode, the micro-vent is closed. When the refrigerator compartment 111 is in constant temperature mode, the micro-vent is opened to cool the temperature sensing component 1151 and supply air to the refrigerator compartment 111, so that the temperature sensed by the temperature sensing component 1151 is lower than the second temperature, thereby closing the air outlet 1152 and / or the air inlet 1142. At this time, the cold air in the evaporator compartment can no longer be delivered to the refrigerator compartment 111 through the air outlet 1152. The refrigerator compartment 111 only receives cold air from the micro-vent, thus eliminating temperature fluctuations in the refrigerator compartment 111 and achieving a constant temperature inside the refrigerator compartment 111. In normal mode, when the temperature sensed by the temperature sensing component 1151 is lower than the second temperature, the air outlet 1152 and / or the air inlet 1142 will be closed to prevent further cooling of the refrigerator compartment 111. When it is necessary to eliminate temperature fluctuations in the refrigerator compartment 111, the temperature sensing component 1151 is cooled by the micro-vent of the temperature sensing component, so that the temperature sensed by the temperature sensing component 1151 is lower than the second temperature. If the control logic of normal mode is used when it is necessary to eliminate temperature fluctuations in the refrigerator compartment 111, the temperature sensing component 1151 can control the air outlet 1152 and / or the air inlet 1142 to close.

[0055] The micro-vent of the temperature sensing component can be set at various relative positions to the temperature sensing component 1151. It only needs to be close to the temperature sensing component 1151 and connected to the refrigerator compartment 111. For example, the micro-vent of the temperature sensing component can be set at an angle relative to the temperature sensing component 1151, or it can be set on the same straight line so that the micro-vent of the temperature sensing component faces the temperature sensing component 1151. The advantage of this is that the temperature sensing component 1151 can be cooled down quickly, causing the air outlet 1152 and / or the air inlet 1142 to close quickly, thereby quickly eliminating temperature fluctuations in the refrigerator compartment 111.

[0056] Figure 8A This is an exploded view of the decorative panel and the first cover plate of a frost-free refrigerator according to one embodiment of this application. The air duct 118 of the frost-free refrigerator 100 is provided with a plurality of micro-air vents 1154, and the micro-air vent for the temperature sensing component is one of the plurality of micro-air vents 1154. Please refer to... Figure 8A Eight sets of micro-air holes 1154 are provided on the first cover plate 115 of the air duct 118. The micro-air holes 1154 are connected to the cold storage compartment 111 and can deliver cold air to the cold storage compartment 111.

[0057] The ventilation vent 1154 can be connected to the refrigerator compartment 111 in various ways. Figure 8B This is a rear view of the decorative panel of a frost-free refrigerator according to one embodiment of this application. For some embodiments of this application, please refer to... Figure 8A and Figure 8B Specifically, a decorative panel 117 is provided between the first cover plate 115 and the refrigerator compartment 111. The decorative panel 117 has decorative holes 1171 that correspond to the micro-vents 1154 on the first cover plate 115. Cold air flowing from the micro-vents 1154 enters the refrigerator compartment 111 through the decorative holes 1171. Since the first cover plate 115 often needs to accommodate other components besides the micro-vents 1154, its appearance is often not aesthetically pleasing. By providing a decorative panel 117 with decorative holes 1171 between the refrigerator compartment 111 and the first cover plate 115, the cold air flowing from the micro-vents 1154 can flow into the refrigerator compartment 111, while simultaneously improving the appearance of the refrigerator compartment 111 and meeting the user's aesthetic needs. Of course, to further improve the appearance of the refrigerator compartment 111, textures or patterns can be added to the decorative panel 117.

[0058] The mode for eliminating temperature fluctuations in the refrigerator compartment 111 can be specifically a constant temperature mode. That is, the operating mode of the refrigerator compartment 111 includes a constant temperature mode. The operating mode of the refrigerator compartment is a specific working mode of the refrigerator compartment. The constant temperature mode is a mode that can be distinguished from the aforementioned normal mode. In other words, this application enables the air-cooled refrigerator to simultaneously achieve both constant temperature mode and normal mode. When the constant temperature mode of the refrigerator compartment 111 is activated, the air outlet 1152 and / or the air inlet 1142 are closed, and cold air is supplied to the refrigerator compartment 111 through the micro air vent 1154. Since both the air outlet 1152 and the air inlet 1142 are closed, the air outlet 1152 cannot receive cold air from the air inlet 1142, and therefore cannot supply cold air to the refrigerator compartment 111 through the air outlet 1152. That is, the micro air vent 1154 becomes the only inlet for supplying cold air to the refrigerator compartment 111. Furthermore, since the ventilation area of ​​the air source hole corresponding to the micro air vent 1154 is fixed, meaning that the ventilation area can remain constant, all the cold air entering the micro air vent 1154 comes from the corresponding air source hole, thus keeping the temperature inside the refrigerator compartment 111 constant.

[0059] Since the combined ventilation areas of the air outlets 1152 and air inlets 1142, or the sum of the ventilation areas of all air outlets 1152 and all air inlets 1142, are typically set relatively large to ensure rapid cooling of the refrigerator compartment 111 in normal mode, the combined ventilation areas of the air outlets 1152 and air inlets 1142, or the sum of the ventilation areas of all air outlets 1152 and all air inlets 1142, are generally larger than the sum of the ventilation areas of all micro-vents 1154. This ensures that the refrigerator compartment 111 can maintain a reasonable temperature range in constant temperature mode, ensuring that the constant temperature of the refrigerator compartment 111 is neither too high nor too low. For example, the temperature set in the constant temperature mode of the refrigerator compartment 111 is usually between the first and second temperatures corresponding to the normal mode of the refrigerator compartment 111.

[0060] Therefore, this not only eliminates temperature fluctuations in the refrigerator compartment 111, but also further enables the refrigerator compartment 111 to achieve a constant temperature.

[0061] Please see Figure 7The air duct 118 is also equipped with an air inlet 1166 corresponding to the micro air vent 1154. At this time, the air inlet 1166 is an air source hole, and the air inlet 1142 is an openable and closable damper, that is, the ventilation area of ​​the air inlet 1166 is fixed. When the constant temperature mode of the refrigerator compartment 111 is activated, the air inlet 1142 is closed, and cold air is delivered to the micro air vent 1154 through the air inlet 1166. This eliminates the temperature fluctuation of the refrigerator compartment 111 and achieves the constant temperature mode of the refrigerator compartment 111. The air path between the micro air vent 1154 and the corresponding air inlet 1166 can be set as a separate air duct, or it can pass through the air duct 118 used for cooling the refrigerator compartment 111 in normal mode.

[0062] In some embodiments of this application, each micro-vent 1154 is an openable and closable damper. When the constant temperature mode of the refrigerator compartment 111 is activated, the air outlet 1152 and / or the air inlet 1142 are closed, and the micro-vent 1154 is opened to deliver cold air to the refrigerator compartment 111.

[0063] In some embodiments of this application, each air inlet 1166 is an openable and closable damper.

[0064] In normal mode, the micro-vent 1154 and / or air inlet 1166 can be opened or closed, allowing the air duct 118 used in constant temperature mode to open or close. Opening the air duct 118 used in constant temperature mode will not have a significant impact on normal mode, and may even reduce temperature fluctuations in normal mode. This allows the air duct used in constant temperature mode to be used in normal mode.

[0065] In some embodiments of this application, the air outlet 1152 is an openable and closable damper, and the air inlet 1142 of the air duct 118 is an air source hole corresponding to the micro air hole 1154. That is, the cold air of the micro air hole 1154 comes from the air inlet 1142. When the constant temperature mode of the refrigerator 111 is activated, the air outlet 1152 is closed, and cold air is delivered to the micro air hole 1154 through the air inlet 1142, so as to deliver cold air to the refrigerator 111 through the micro air hole 1154.

[0066] This embodiment eliminates temperature fluctuations in the refrigerator compartment 111 in another way, and also achieves a constant temperature mode for the refrigerator compartment 111.

[0067] The number, shape, size, and location of the micro-vents 1154 can be arbitrarily set according to design requirements, the desired constant temperature, and the size and layout of the cold storage compartment 111.

[0068] Since the air inlet 1142 of the air duct 118 is an air source hole corresponding to the micro-vent 1154, the ventilation area of ​​the air inlet 1142 of the air duct 118 is fixed in constant temperature mode. In normal mode, the air inlet 1142 of the air duct 118 remains open. It can be an openable and closable damper or an open fixed solid structure. The temperature of the refrigerator compartment 111 is adjusted by opening and closing the air outlet 1152.

[0069] In some embodiments of this application, the refrigerator compartment 111 includes a plurality of sub-chambers, each sub-chamber communicating with at least one micro-vent 1154.

[0070] When a refrigerator compartment comprises multiple sub-compartments, if the refrigerator compartment is only connected to a single ventilation vent, it is difficult to achieve rapid and uniform temperature control within the compartment. Therefore, this embodiment implements a temperature control mode for multiple sub-compartments.

[0071] For example, see Figure 2B The cold storage compartment 111 includes multiple layers of space, each of which can be a sub-chamber.

[0072] In some embodiments of this application, the cabinet 101 of the air-cooled refrigerator 100 further includes a base for placing the air-cooled refrigerator 100, and the sub-chambers are arranged in layers. In the direction from near the base to away from the base, the sum of the ventilation areas of the micro-ventilation holes connected to each sub-chamber increases sequentially.

[0073] The sum of the ventilation areas of the micro-ventilations connected to each sub-chamber, which increases sequentially from the direction closest to the base to the distance from the base, can be set according to certain mathematical rules, or it can be set according to experiments or experience.

[0074] Because cold air tends to sink, when the micro-vents are evenly distributed, the lower sub-chambers receive more cold air, resulting in a relatively low temperature in the lower sub-chambers for a short period after entering constant temperature mode. The lower the height, the closer to the base, and the higher the height, the further away from the base. Therefore, the sum of the ventilation areas of the micro-vents connecting each sub-chamber increases sequentially from near to far from the base, allowing the upper sub-chambers to receive more cold air. This also ensures that each sub-chamber maintains a uniform temperature as the cold air sinks.

[0075] In some embodiments of this application, the micro-ventilation holes 1154 are dampers with adjustable opening areas, and the sum of the ventilation areas of each air outlet 1152 and the sum of the ventilation areas of each air inlet 1142 are greater than the sum of the maximum adjustable opening areas of each micro-ventilation hole 1154.

[0076] Similarly, the air inlet 1166 can also be a damper with an adjustable opening area.

[0077] The micro-vent 1154 can be a damper designed based on various principles. It only needs to keep the adjusted opening area fixed while allowing the opening area to be adjusted. For example, it can be an electric damper with an opening and closing mechanism, or a damper constructed using the principle of a mechanical lever. These types of dampers can keep the opening area of ​​the micro-vent 1154 constant.

[0078] This embodiment achieves the adjustment of the constant temperature in the constant temperature mode. In addition, with the air vents being adjustable opening areas, the temperature of the refrigerator compartment can be maintained within a reasonable range in the constant temperature mode.

[0079] Figure 1B This is a temperature operating curve diagram of the refrigerator compartment of an air-cooled refrigerator according to an embodiment of this application. The air-cooled refrigerator provided by the embodiment of this application can make the temperature operating curve of the refrigerator compartment as shown in the figure. Figure 1B As shown, this allows the temperature operating curve inside the refrigerator to be similar to the second temperature operating curve b. Under this condition, the temperature inside the refrigerator remains constant, eliminating temperature fluctuations in the refrigerator compartment of the air-cooled refrigerator and improving the preservation effect.

[0080] It should be noted that the above are merely exemplary embodiments of this application, and the scope of protection of this application is not limited to the above content. For example, in specific applications, the air-cooled refrigerator may not have a duct foam, multiple constant-temperature refrigerator compartments may be set in the air-cooled refrigerator provided in this application, the positions of the air outlet and air inlet may be arbitrarily set, the fan may be set on the second cover plate, and a separate fan may be set for the air inlet to obtain cold air, etc. The scope of protection of this application should not be limited by the above exemplary embodiments.

[0081] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0082] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A forced air refrigerator, characterized by, The application relates to a refrigerator, comprising: a cabinet including at least one refrigerating chamber; a first cover plate located inside the cabinet, the refrigerating chamber being located at one side of the first cover plate; an air duct located at the other side of the first cover plate, the air duct being provided with at least one air outlet and at least one air inlet, the air outlet being in communication with the refrigerating chamber, the air inlet being used for conveying cold air to the air duct, the air outlet and / or the air inlet being a closable air door; a temperature sensing component used for sensing the temperature of the refrigerating chamber, the temperature sensing component controlling the opening and closing of the air outlet and / or the air inlet according to the sensed temperature; and a temperature sensing component air hole used for cooling the temperature sensing component and conveying air to the refrigerating chamber, so that the temperature sensing component controls the closing of the air outlet and / or the air inlet according to the sensed temperature. The air duct is provided with a plurality of air holes, the temperature sensing component air hole is one of the plurality of air holes, the air hole is in communication with the refrigerating chamber, the air source hole corresponding to the air hole has a fixed air passage area, when a constant temperature mode of the refrigerating chamber is started, the air outlet and / or the air inlet are closed, and cold air is conveyed to the refrigerating chamber through the air hole.

2. The air-cooled refrigerator according to claim 1, characterized in that The sum of the air passage areas of all the air outlets and the sum of the air passage areas of all the air inlets are both greater than the sum of the air passage areas of all the air holes.

3. The air-cooled refrigerator according to claim 2, characterized in that The air inlet is a closable air door, the air duct is further provided with an air inlet hole corresponding to the air hole, the air inlet hole is the air source hole, when the constant temperature mode of the refrigerating chamber is started, the air inlet is closed, and cold air is conveyed to the air hole through the air inlet hole.

4. The air-cooled refrigerator according to claim 3, characterized in that All the air holes are closable air doors, when the constant temperature mode of the refrigerating chamber is started, the air holes are opened, and cold air is conveyed to the refrigerating chamber through the air holes.

5. The air-cooled refrigerator according to claim 3, characterized in that, The air outlet is a closable air door, the air inlet of the air duct is an air source hole corresponding to the air hole, when the constant temperature mode of the refrigerating chamber is started, the air outlet is closed, cold air is conveyed to the air hole through the air inlet, and cold air is conveyed to the refrigerating chamber through the air hole.

6. The air-cooled refrigerator according to claim 3, characterized in that The refrigerating chamber includes a plurality of sub-chambers, each of the sub-chambers is in communication with at least one air hole.

7. The air-cooled refrigerator according to claim 3, characterized in that The cabinet further includes a base used for placing the air-cooled refrigerator, the sub-chambers are arranged in layers, and the sum of the air passage areas of the air holes communicated by the sub-chambers increases successively in the direction from the base to the base.

8. The air-cooled refrigerator according to claim 7, characterized in that The air holes are air doors with adjustable opening areas, the sum of the air passage areas of all the air outlets and the sum of the air passage areas of all the air inlets are both greater than the sum of the maximum adjustable opening areas of all the air holes.

9. The air-cooled refrigerator according to any one of claims 3-8, characterized in that The first cover plate and the refrigerating chamber are further provided with a decorative plate, the decorative plate is provided with decorative holes matched with the air holes, and cold air flowing out of the air holes enters the refrigerating chamber through the decorative holes.

10. The air-cooled refrigerator according to any one of claims 3-8, characterized in that ​

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