Temperature control structure and refrigerator

Abstract

The present disclosure relates to a temperature control structure and a refrigerator. The temperature control structure is applied to the refrigerator, comprising: at least one air duct, the air duct having an air outlet; the air outlet is located in a refrigerator or a freezer; a refrigeration component, at least a refrigeration area of ​​the refrigeration component is located in one of the air ducts, for generating cold air; an air duct switch component is located in each air duct, and is used at least to connect the air outlet with the refrigeration area to form a first circulation path when the air outlet temperature is higher than a first preset temperature according to a first control signal; and to separate the air outlet from the refrigeration area to form a second circulation path when the target temperature is lower than a second preset temperature according to a second control signal; the gas in the first circulation path flows through the refrigeration area, and the cold air enters the first circulation path; the gas in the second circulation path bypasses the refrigeration area, and the cold air does not enter the second circulation path; the first preset temperature is higher than the second preset temperature.

Description

Technical Field

[0001] The present disclosure relates to the field of refrigerators, and in particular to a temperature control structure and a refrigerator. Background Art

[0002] With the development of technology, many electronic devices have emerged in different application scenarios. Among them, home appliances, as important electronic products in home products, play an important role. Home appliances include refrigerators. Refrigerators have a fresh-keeping function. Usually, the temperature inside the refrigerator is lower than the outside temperature. Some vegetables, fruits, meat and other items can be preserved at low temperatures. The temperature inside the refrigerator can be adjusted. By adjusting the temperature inside the refrigerator, the items can be better preserved and the shelf life of the items can be extended. Summary of the invention

[0003] The present disclosure provides a sound channel structure and a refrigerator.

[0004] According to a first aspect of an embodiment of the present disclosure, a temperature control structure is provided, which is applied to a refrigerator, comprising: at least one air duct, the air duct having an air outlet; wherein the air outlet is located in a refrigerator or a freezer; a refrigeration component, at least a refrigeration area of ​​the refrigeration component is located in one of the air ducts, for generating cold air; an air duct switch component, located in each of the air ducts, for at least connecting the air outlet with the refrigeration area to form a first circulation path when a target temperature of the air outlet is higher than a first preset temperature according to a first control signal; and separating the air outlet from the refrigeration area to form a second circulation path when the target temperature is lower than a second preset temperature according to a second control signal; wherein the gas in the first circulation path flows through the refrigeration area, and the cold air enters the first circulation path; the gas in the second circulation path bypasses the refrigeration area, and the cold air does not enter the second circulation path; and the first preset temperature is higher than the second preset temperature.

[0005] In some embodiments, the temperature control structure includes: a temperature sensor located at the air outlet, used to detect the target temperature; a controller, electrically connected to the temperature sensor, used to generate the first control signal when the target temperature is higher than the first preset temperature; and generate the second control signal when the target temperature is lower than the second preset temperature.

[0006] In some embodiments, the temperature control structure includes: a fan, located in each of the air ducts, the first circulation path and the second circulation path respectively having the fan, the fan being used to blow the gas circulation in the first circulation path according to a third control signal and to blow the gas circulation in the second circulation path according to a fourth control signal; the controller, electrically connected to the fan, for generating the third control signal when the target temperature is higher than the first preset temperature; and for generating the fourth control signal when the target temperature is lower than the second preset temperature.

[0007] In some embodiments, the controller is further used to generate a fifth control signal for controlling the refrigeration component to start refrigeration when the target temperature is higher than the first preset temperature; the controller is also used to generate a sixth control signal for controlling the refrigeration component to stop refrigeration when the target temperature is lower than the second preset temperature.

[0008] In some embodiments, the air duct includes a first air duct; the first air duct has a first air inlet; the air duct switch assembly includes: a first air duct switch assembly, located between the refrigeration assembly and the air outlet; when the target temperature is higher than the first preset temperature, the first air duct switch assembly is in a first state; wherein, in the first state, the first air duct switch assembly serves as a part of the side wall of the first air duct, and the air outlet, the refrigeration chamber or the freezer chamber, and the first air inlet form the first circulation path.

[0009] In some embodiments, when the target temperature is lower than the second preset temperature, the first air duct switch assembly is in a second state; wherein, in the second state, the first air duct switch assembly blocks the first air duct between the refrigeration assembly and the air outlet, and forms a second air inlet on the side wall of the first air duct; the air outlet, the refrigeration chamber or the freezer chamber, and the second air inlet form the second circulation path.

[0010] In some embodiments, the distance between the second air inlet and the air outlet is smaller than the distance between the refrigeration component and the air outlet.

[0011] In some embodiments, the first air inlet is located at the bottom of the refrigerating chamber or the freezing chamber.

[0012] In some embodiments, the fan includes: a first fan, located in the first air duct, used to blow the gas in the first circulation path and the second circulation path to circulate along the direction from the first fan to the air outlet; wherein the distance between the first fan and the air outlet is less than the distance between the second air inlet and the air outlet.

[0013] In some embodiments, the air duct includes a second air duct and a third air duct, and the refrigeration component is located in the second air duct; the second air duct and the third air duct have the same air outlet, the second air duct has a third air inlet, and the third air duct has a fourth air inlet; the air duct switch component includes: a second air duct switch component located in the second air duct and a third air duct switch component located in the third air duct; wherein, when the target temperature is higher than the first preset temperature, the second air duct switch component turns on the second air duct according to the first control signal, and the third air duct switch component turns on the third air duct according to the second control signal, and the air outlet, the third air inlet and the second air duct form the first circulation path; when the target temperature is lower than the second preset temperature, the second air duct switch component closes the second air duct according to the second control signal, and the third air duct switch component turns on the third air duct according to the first control signal, and the air outlet, the fourth air inlet and the third air duct form the second circulation path.

[0014] In some embodiments, the fan includes: a second fan, located in the second air duct, and used to blow the gas in the first circulation path along the direction from the third air inlet to the air outlet when the temperature is controlled through the first circulation path; a third fan, located in the third air duct, and used to blow the gas in the second circulation path along the direction from the fourth air inlet to the air outlet when the temperature is controlled through the second circulation path.

[0015] According to a second aspect of the embodiments of the present disclosure, a refrigerator is provided, comprising: the temperature control structure described in any of the above embodiments; a refrigerating chamber and a freezing chamber, each having the temperature control structure.

[0016] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0017] The temperature control structure in the example of the present disclosure can be applied to a refrigerator, and the temperature control structure includes: at least one air duct with an air outlet, a refrigeration component and an air duct switch component. The air outlet in the air duct is located in a refrigerator or a freezer. At least the refrigeration area of ​​the refrigeration component is located in one of the air ducts for generating cold air. The air duct switch component is located in each air duct, and is used at least to connect the air outlet with the refrigeration area to form a first circulation path when the target temperature of the air outlet is higher than the first preset temperature according to a first control signal. And when the target temperature is lower than the second preset temperature according to a second control signal, the air outlet is separated from the refrigeration area to form a second circulation path. The gas in the first circulation path flows through the refrigeration area, and the cold air enters the first circulation path; the gas in the second circulation path bypasses the refrigeration area, and the cold air does not enter the second circulation path. The first preset temperature is higher than the second preset temperature.

[0018] The refrigeration component and the air outlet are connected and isolated according to the control signal through the air duct switch component, thereby adjusting the circulation path of the refrigeration component. When the target temperature is higher than the first preset temperature, it means that the target temperature is too high and needs to be cooled. The gas in the first circulation path flows through the refrigeration component, thereby cooling the gas in the first circulation path. The cooled gas flows through the refrigerator or freezer, thereby achieving the cooling effect and reducing the situation of spoilage of items due to excessive temperature.

[0019] When the target temperature is lower than the second preset temperature, it means that the target temperature has met the required temperature and does not need to be lowered any further. At this time, the gas circulates through the second circulation path, and the gas in the second circulation path no longer flows through the refrigeration component, thereby reducing the chances of items at the air outlet being frostbitten due to low temperature and improving the shelf life and freshness of the items.

[0020] By circulating gas alternately through the first circulation path and the second circulation path, the target temperature can be maintained within the range between the second preset temperature and the first preset temperature, reducing the situation where the target temperature is too high or too low, and improving the shelf life and freshness of the items at the air outlet.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 is a schematic diagram of a temperature control structure according to an exemplary embodiment;

[0024] Figure 2is a schematic diagram showing an electrical connection relationship of a temperature control structure according to an exemplary embodiment;

[0025] Figure 3 A schematic diagram of a temperature control structure according to an exemplary embodiment is shown

[0026] Figure 4 According to an exemplary embodiment, a Figure 3 A schematic diagram of another state of the temperature control structure shown;

[0027] Figure 5 According to an exemplary embodiment, Figure 3 and Figure 4 A front view of the temperature control structure shown;

[0028] Figure 6 is a left side view of another temperature control structure according to an exemplary embodiment;

[0029] Figure 7 According to an exemplary embodiment, Figure 6 A right side view of the temperature control structure shown;

[0030] Figure 8 According to an exemplary embodiment, Figure 6 A front view of the temperature control structure shown;

[0031] Fig. 9 is a block diagram of a refrigerator according to an exemplary embodiment. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0033] The refrigerator can cool down the surrounding air by cooling the refrigeration component, and then circulate the cooled air into the refrigerator to achieve the cooling effect. This kind of refrigerator can also be called an "air-cooled refrigerator". The temperature inside the refrigerator is lowered by using a fan to blow the cold air cooled by the refrigeration component into the refrigerator or freezer to cool the internal space of the refrigerator and the food. The refrigeration component can include an evaporator, and the temperature of the refrigeration component is very low, usually below -18°C.

[0034] For the freezer, such a temperature can keep the frozen food in a low temperature state and can be stored for a long time. However, for the fresh food that needs to be refrigerated in the refrigerator, the temperature of the cold air blown out from the evaporator will be too low. Fresh vegetables or fruits need to be stored in the refrigerator, but the temperature cannot be too low, otherwise these items will be frozen.

[0035] Because the temperature of the gas after cooling by the evaporator is usually close to the temperature of the evaporator, usually around -18°C, the temperature of the gas at the air outlet of the refrigerator is very low. If some refrigerated fresh fruits and vegetables are close to the air outlet, they may be frostbitten, thereby reducing the shelf life and freshness of the fruits and vegetables. In order to ensure that the fruits and vegetables are not frozen, we need to increase the temperature or avoid the air outlet. This will lead to low utilization of the internal space of the refrigerator or shorten the shelf life of fruits and vegetables.

[0036] Normally, by using breeze ducts, increasing the number of air outlets in the refrigerator, adding air duct pipes on the refrigerator side panels, and increasing the air outlets around the front of the refrigerator. However, due to the complexity of the air duct pipes, it is necessary to arrange extra pipes on the refrigerator side panels, and too thin pipes will increase air flow resistance. Too large will affect the thickness of the foaming layer of the refrigerator. Moreover, the increase in the number of air outlets cannot fundamentally solve the problem of low temperature at the air outlet. It can only appropriately balance and reduce the temperature difference inside the entire refrigerator space.

[0037] The present invention changes the structure of the air duct and the control method of the air duct switch assembly (including the air door) on the basis of the existing air duct, so as to achieve the purpose of precise temperature control and prevent the temperature at the air duct outlet from being too low and freezing the refrigerated fruits and vegetables. There is no need to add air duct pipelines in the refrigerated side panel, the structure is simple, the temperature control is stable and precise, and the temperature difference inside the refrigerator is reduced.

[0038] refer to Figure 1 , is a schematic diagram of a temperature control structure provided in a disclosed example, which temperature control structure can be applied to a refrigerator. Figure 1 Just showing one situation, the temperature control structure includes:

[0039] At least one air duct A, the air duct A has an air outlet B; wherein the air outlet B is located in the refrigerator compartment or the freezer compartment.

[0040] The refrigeration component C, at least the refrigeration area of ​​the refrigeration component C is located in one of the air ducts A, and is used to generate cold air.

[0041] The air duct switch assembly D is located in each air duct A, and is used at least to connect the air outlet B with the refrigeration area to form a first circulation path L1 when the target temperature of the air outlet B is higher than the first preset temperature according to the first control signal. And when the target temperature is lower than the second preset temperature according to the second control signal, the air outlet B is separated from the refrigeration area to form a second circulation path L2. L2 is Figure 1 As shown by the solid line with arrows, L1 Figure 1 Indicated by the dashed line with arrow.

[0042] The gas in the first circulation path L1 flows through the refrigeration area, and the cold air enters the first circulation path L1; the gas in the second circulation path L2 bypasses the refrigeration area, and the cold air does not enter the second circulation path L2. The first preset temperature is higher than the second preset temperature.

[0043] The temperature control structure may include at least one air duct, which may be one, two, or more. The shape, size, and length of each air duct may be determined according to actual use requirements, such as a circular cross-sectional area or a rectangular cross-sectional area.

[0044] Each air duct A has an air outlet B, which is located inside the refrigerator. For example, air outlet B can be located in the refrigerator compartment or the freezer compartment, and is connected to the refrigerator compartment or the freezer compartment. The gas coming out of air outlet B can flow into the refrigerator compartment or the freezer compartment, thereby lowering the temperature of the refrigerator compartment or the freezer compartment.

[0045] In one embodiment, the air outlet B is located at the top of the interior of the refrigerator, such as the top of the refrigerator compartment or the freezer compartment.

[0046] The refrigeration component C may be located in an air duct A. The air duct A where the refrigeration component C is located may be used to circulate the gas cooled by the refrigeration component C to the freezer or refrigerator compartment of the refrigerator, thereby lowering the temperature of the refrigerator or freezer compartment.

[0047] The refrigeration component C may be any device with refrigeration function, for example, an evaporator. The refrigeration area in the refrigeration component C is located in one of the air ducts, and is used to cool the gas in the air duct flowing through the refrigeration area.

[0048] Each air duct has a corresponding air duct switch assembly D, that is, the air duct switch assembly D is located in each air duct A. The air duct switch assembly D can also be a damper switch. The air duct switch assembly D can also be a switch assembly in other forms, which can open and block the air duct at the corresponding position. The air duct switch assembly D is an electrically controlled switch assembly, which can switch the state according to the control signal.

[0049] The temperature at the air outlet B is recorded as the target temperature. The first preset temperature can be determined according to the actual use requirements. The first preset temperature may be different in different use environments, and the first preset temperature in the refrigerator and freezer may also be different. When different stored items are placed, the first preset temperature may also be different. The first preset temperature is the highest preset temperature of the air outlet B. When the target temperature is lower than the first preset temperature and higher than the second preset temperature, the shelf life of the items stored in the refrigerator's refrigerator or freezer can be extended, and they will not be spoiled due to excessive temperature. When the target temperature is higher than this temperature, the items stored in the refrigerator's refrigerator or freezer may be spoiled due to excessive temperature.

[0050] The air duct switch assembly D is at least used to connect the air outlet B with the refrigeration area to form a first circulation path L1 when the target temperature of the air outlet B is higher than the first preset temperature according to the first control signal. Since the refrigeration area is located in one of the air ducts and the air duct has an air outlet, after the air outlet B is connected to the refrigeration area, the refrigeration area can cool down the gas passing through the refrigeration area, so that the first circulation path L1 can be formed based on the air duct where the refrigeration area is located. The gas in the first circulation path L1 flows through the refrigeration area, and the refrigeration area generates cold air by cooling the gas around the refrigeration area, and the cold air enters the first circulation path L1. The cold air generated after cooling down the refrigeration area enters the cold storage room or the freezer through the air outlet, thereby cooling the cold storage room or the freezer.

[0051] The first control signal is used to control the state of the air duct switch assembly D, and is used to adjust the state of the air duct switch assembly D when the target temperature is higher than the first preset temperature, so that the adjusted air duct switch assembly D can connect the air outlet B with the cooling area. The first control signal can be generated by a controller in the air conditioner.

[0052] The air duct switch D can also separate the air outlet B from the refrigeration area according to the second control signal when the target temperature is lower than the second preset temperature to form a second circulation path L2.

[0053] The second preset temperature can be determined according to actual usage requirements. The second preset temperature may be different in different usage environments, and may be different in the refrigerator and freezer. The second preset temperature may also be different when different items are placed. The second preset temperature is the lowest preset temperature of the air outlet B. When the target temperature is higher than this temperature and lower than the first preset temperature, the storage period of the items stored in the refrigerator's refrigerator or freezer can be extended, so that the items will not be frozen due to too low a temperature, thereby reducing the storage period.

[0054] After the gas circulates through the first circulation path L1, the target temperature at the air outlet B will decrease. When the target temperature decreases to the second preset temperature, it means that there is no need to further reduce the temperature at the air outlet B. Then, the air duct switch D separates the air outlet B from the refrigeration area according to the second control signal when the target temperature is lower than the second preset temperature, forming the second circulation path L2. The gas in the second circulation path L2 bypasses the refrigeration area, and the cold air does not enter the second circulation path L2. The first preset temperature is higher than the second preset temperature.

[0055] The second control signal is used to control the state of the air duct switch assembly D, and is used to adjust the state of the air duct switch assembly D when the target temperature is lower than the second preset temperature. The adjusted air duct switch assembly D can separate the air outlet B from the cooling area to form a second circulation path L2. The second control signal can be generated by a controller in the air conditioner.

[0056] The gas in the second circulation path does not pass through the refrigeration area for cooling during the circulation process, bypasses the refrigeration, passes through the corresponding air duct and enters the refrigerator or freezer through the air outlet, thereby cooling the refrigerator or freezer.

[0057] The refrigeration component and the air outlet are connected and isolated according to the control signal through the air duct switch component, thereby adjusting the circulation path of the refrigeration component. When the target temperature is higher than the first preset temperature, it means that the target temperature is too high and needs to be cooled. The gas in the first circulation path flows through the refrigeration component, thereby cooling the gas in the first circulation path. The cooled gas flows through the refrigerator or freezer, thereby achieving the cooling effect and reducing the situation of spoilage of items due to excessive temperature.

[0058] When the target temperature is lower than the second preset temperature, it means that the target temperature has met the required temperature and does not need to be lowered any further. At this time, the gas circulates through the second circulation path, and the gas in the second circulation path no longer flows through the refrigeration component, thereby reducing the chances of items at the air outlet being frostbitten due to low temperature and improving the shelf life and freshness of the items.

[0059] By circulating gas alternately through the first circulation path and the second circulation path, the target temperature can be maintained within the range between the second preset temperature and the first preset temperature, reducing the situation where the target temperature is too high or too low, and improving the shelf life and freshness of the items at the air outlet.

[0060] In addition, this method does not require adding more air outlets. The air duct can be opened and closed through the air duct switch component on the existing air duct pipeline, thereby forming a first circulation path and a second circulation path. It has a simple structure and high temperature control accuracy.

[0061] In another embodiment, reference Figure 2, is a schematic diagram of electrical connection relationship of a temperature control structure, the temperature control structure includes:

[0062] The temperature sensor E is located at the air outlet B and is used to detect the target temperature at the air outlet B.

[0063] The controller F is electrically connected to the temperature sensor, and is used to generate a first control signal when the target temperature is higher than a first preset temperature, and to generate a second control signal when the target temperature is lower than a second preset temperature.

[0064] The temperature sensor E can be any sensor with a temperature detection function, and the model and size are not limited. It is located at the air outlet B and can detect the temperature at the air outlet B, which is recorded as the target temperature.

[0065] The controller F can be any device with a control function, such as a microprocessor unit (MCU) and a single-chip microcomputer, and the model is not limited. The controller F generates a first control signal or a second control signal according to the target temperature detected by the temperature sensor E, thereby controlling the state of the air duct switch component D through the first control signal or the second control signal to achieve the switching of the circulation path.

[0066] In another embodiment, Figure 2 The electrical connection relationship between the air duct switch assembly D and the controller F is also shown. The air duct switch assembly D is electrically connected to the controller F. The controller F is also used to generate a first control signal when the air outlet temperature is higher than a first preset temperature, and to generate a second control signal when the target temperature is lower than a second preset temperature. After generating the first control signal, the controller F sends the first control signal to the air duct switch assembly D. After generating the second control signal, the controller F sends the second control signal to the air duct switch assembly D.

[0067] In another embodiment, the temperature control structure comprises:

[0068] The fan G is located in each air duct A. The first circulation path L1 and the second circulation path L2 are respectively provided with a fan G. The fan G is used to blow the gas circulation in the first circulation path L1 according to the third control signal and to blow the gas circulation in the second circulation path L2 according to the fourth control signal.

[0069] The controller F is electrically connected to the fan G and the air duct switch assembly D, respectively, and is used to generate a third control signal when the target temperature is higher than the first preset temperature, and to generate a fourth control signal when the target temperature is lower than the second preset temperature. The third control signal is used to control the fan G to blow the gas circulation in the first circulation path L1. The fourth control signal is used to control the fan G to blow the gas circulation in the second circulation path L2.

[0070] The controller F sends the third control signal to the fan G after generating the third control signal. The controller F sends the fourth control signal to the fan G after generating the fourth control signal.

[0071] In another embodiment, reference Figure 2 , and also shows a schematic diagram of the electrical connection relationship between a controller and a refrigeration component.

[0072] The controller F is further configured to generate a fifth control signal for controlling the refrigeration component to start refrigeration when the target temperature is higher than the first preset temperature. After generating the fifth control signal, the controller F sends the fifth control signal to the refrigeration component C.

[0073] The controller F is further configured to generate a sixth control signal for controlling the refrigeration component to stop refrigeration when the target temperature is lower than the second preset temperature. After generating the sixth control signal, the controller F sends the sixth control signal to the refrigeration component C.

[0074] In another embodiment, reference Figure 3 , which is a schematic diagram of another temperature control structure.

[0075] In the temperature control structure of this example, the air duct A includes a first air duct A1 having a first air inlet H1.

[0076] The air duct switch assembly D includes: a first air duct switch assembly D1, located between the refrigeration assembly C and the air outlet B.

[0077] When the target temperature is higher than the first preset temperature, the first air duct switch assembly D1 is in a first state. In the first state, the first air duct switch assembly D1 serves as a part of the side wall of the first air duct A1, and the air outlet B, the refrigeration chamber J or the freezer chamber K, and the first air inlet H1 form a first circulation path L1. Figure 3 Taking the refrigerator as an example, the freezer can be controlled based on the same principle.

[0078] Figure 3 A side view of a refrigerator compartment, showing a temperature control structure, Figure 3 The arrow shown in the middle refrigerating chamber is the first circulation path L1.

[0079] In another embodiment, reference Figure 4 , is a schematic diagram of another temperature control structure, Figure 4 The temperature control structure shown is Figure 3 A schematic diagram of another state of the temperature control structure is shown.

[0080] When the target temperature is lower than the second preset temperature, the first air duct switch assembly D1 is in the second state. In the second state, the first air duct switch assembly D1 blocks the first air duct A1 between the refrigeration assembly C and the air outlet B, and forms a second air inlet H2 on the side wall of the first air duct A1, and the air outlet B, the refrigerating chamber J or the freezing chamber K, and the second air inlet H2 form a second circulation path L2. Figure 4 Taking the refrigerator as an example, the freezer can be controlled based on the same principle.

[0081] The second air inlet H2 is an air inlet formed after the first air duct switch component D1 is in the switching state. After the first air duct switch component D1 blocks the first air duct A1 between the refrigeration component C and the air outlet B, the second air inlet H2 is formed on the side wall of the first air duct A1.

[0082] Figure 4 The arrow shown is a second circulation path L2, and the second circulation path L2 does not pass through the refrigeration component C.

[0083] Figure 3 and Figure 4 The control method of the corresponding embodiment can refer to Figure 1 and Figure 2 The description of the control process in the corresponding embodiment.

[0084] In another embodiment, the distance between the second air inlet H2 and the air outlet B is smaller than the distance between the refrigeration component C and the air outlet B. Figure 3 and Figure 4 As shown, the second air inlet H2 is located on a side of the refrigeration component C close to the air outlet B in the first air duct A1.

[0085] In another embodiment, the first air inlet H1 is located at the bottom of the refrigerating chamber or the freezing chamber. Figure 3 and Figure 4 The first air inlet H1 is shown to be located at the bottom of the refrigerating chamber.

[0086] In another embodiment, the fan G comprises:

[0087] The first fan G1 is located in the first air duct A1, and is used to blow the gas in the first circulation path L1 and the second circulation path L2 to circulate along the direction from the first fan G1 to the air outlet B. The distance between the first fan G1 and the air outlet B is smaller than the distance between the second air inlet H2 and the air outlet B. Relative to the second air inlet H2, the first fan G1 is closer to the air outlet B. The first fan G1 is used to blow the gas in the first air duct A1 toward the air outlet B, so that the gas in the first air duct A1 flows out from the air outlet B.

[0088] Figure 5 ,for Figure 3 and Figure 4 Front view of .

[0089] In another embodiment, reference Figure 6 , is the left view of another temperature control structure, Figure 7 for Figure 6 The right side view of the temperature control structure shown, Figure 8 for Figure 6 The front view of the temperature control structure is shown in FIG. Refrigerating chamber J is used as an example for explanation.

[0090] In this example, the air duct A includes a second air duct A2, referring to Figure 6 , air duct A includes the third air duct A3, reference Figure 7 The cooling component C is located in the second air duct A2. Figure 6 The second air duct A2 and the third air duct A3 have the same air outlet B, and the second air duct A2 has a third air inlet H3. Figure 6 The third air duct A3 has a fourth air inlet H4, refer to Figure 7 .

[0091] The air duct switch assembly D includes: a second air duct switch assembly D2 located in the second air duct A2, referring to Figure 6 The air duct switch assembly D includes: a third air duct switch assembly D3 located in the third air duct A3, Figure 7 .

[0092] When the target temperature is higher than the first preset temperature, the second air duct switch component D2 turns on the second air duct A2 according to the first control signal, and the third air duct switch component D3 turns on the third air duct A3 according to the second control signal, and the air outlet B, the third air inlet H3 and the second air duct A2 form a first circulation path L1. Please refer to Figure 6 , Figure 7 and Figure 8 , Figure 6 The arrow in is the first circulation path L1.

[0093] When the target temperature is lower than the second preset temperature, the second air duct switch component D2 closes the second air duct A2 according to the second control signal, and the third air duct switch component D3 opens the third air duct A3 according to the first control signal, and the air outlet B, the fourth air inlet H4 and the third air duct A3 form a second circulation path L2. Please refer to Figure 6 , Figure 7 and Figure 8 , Figure 7 The arrow in is the first circulation path L2.

[0094] In another embodiment, the fan comprises:

[0095] The second fan G2 is located in the second air duct A2, and is used to blow the gas in the first circulation path L1 to circulate along the direction from the third air inlet H3 to the air outlet B when controlling the temperature through the first circulation path L1.

[0096] The third fan G3 is located in the third air duct A3, and is used to blow the gas in the second circulation path L2 to circulate along the direction from the fourth air inlet H4 to the air outlet B when controlling the temperature through the second circulation path.

[0097] Figure 8 The second fan G2 and the third fan G3 are combined into one.

[0098] In another embodiment, a refrigerator is provided, comprising:

[0099] The temperature control structure in any of the above embodiments;

[0100] The refrigerator and freezer have temperature control structures. You can also refer to the schematic diagram of the refrigerator. Figures 1 to 8 .

[0101] In another embodiment, a control principle of a refrigerator is shown, referring to FIG. Figure 3 , Figure 4 and Figure 5 .

[0102] Take the refrigerator freezer as an example.

[0103] The first air duct switch component D1 (such as a refrigeration damper) is located at the upper end of the refrigeration component C (such as a refrigeration evaporator). A fan G1 is provided at the top of the first air duct A1 (such as a refrigeration air duct) for air circulation inside the refrigeration compartment. When the target temperature at the air outlet B of the refrigeration compartment is lower than the second preset temperature, the circulation of gas (including wind) is shown in FIG. Figure 4 The first air duct switch assembly D1 (such as a refrigeration air door) is in a horizontal state, at which time the circulation between the refrigeration chamber and the refrigeration evaporator is closed.

[0104] At this time, the fan G1 at the upper end of the refrigerated air duct is running to circulate the air in the cold storage room. Because the target temperature at the air outlet B is relatively low, when the first air duct switch component D1 is closed, the gas flow between the evaporator and the cold storage room is cut off, and no cold air cooled by the refrigeration component C is blown into the cold storage room. The air inside the cold storage room circulates. When the fan G1 is running, the air with a higher temperature in the cold storage room is circulated into the refrigerated air duct, and the temperature inside the refrigerated air duct is increased. After running for a certain period of time (such as 2-3 minutes), the temperature of the refrigerated air duct is almost the same as the temperature inside the cold storage room. At this time, the target temperature at the air outlet B has increased. After the target temperature reaches the first temperature, the first air duct switch component D1 becomes vertical. Figure 3 The refrigeration evaporator is connected with the refrigeration air duct.

[0105] Refrigeration air circulation Figure 3 In the cycle shown in the figure, the refrigerated air is cooled by the first air inlet H1 at the bottom of the refrigerated room through the refrigerated evaporator, and then blown upward to the first air duct A1. At this time, the refrigerated air door is in a vertical position. The air flows upward all the time, passes through the refrigerated fan, and blows out from the outlet of the first air duct A1. Then it enters the refrigerated room, performs a cooling cycle on the refrigerated room, and then reaches the bottom of the refrigerated room and re-enters the first air inlet H1, including the return air outlet, completing a cycle.

[0106] The refrigerated air return vent is located at the bottom of the refrigerated room. The air door is in a vertical state. After running for about 5-6 minutes, the target temperature at the refrigerated air outlet B is already low, such as lower than the second preset temperature. At this time, the air door returns to Figure 4 The state shown in the figure is that the refrigeration room is closed and the refrigeration evaporator is connected. The air in the refrigeration space is circulated separately, such as Figure 4 cycle.

[0107] This cycle repeats, because the refrigeration time is short each time the refrigeration is turned on, if it is controlled only by the existing refrigerator system, it cannot be achieved, because the refrigerator compressor cannot be started and stopped so frequently. After each compressor stops, it must be stopped for 5-10 minutes before it can be restarted, and frequent starts and stops will cause serious heating of the motor, resulting in a reduction in the life of the motor. Therefore, it is impossible to achieve refrigeration and non-refrigeration by controlling the compressor to start and shut down. However, the present invention does not require the refrigerator compressor to be frequently turned on and off. Through the control of the damper, when the refrigeration is performed, the damper is opened. Continuous refrigeration for 5-6 minutes, then the damper is closed and connected to the evaporator, refrigeration is stopped, and the refrigeration is circulated separately for 2-3 minutes. Then refrigeration is restarted. This cycle repeats, which can ensure that the temperature at the air outlet position will not drop too low, and at the same time, the temperature of the entire refrigeration chamber continues to circulate, and the temperature difference at each position of the refrigeration chamber is small. The purpose of precise temperature control can be achieved.

[0108] In another embodiment, a control principle of a refrigerator is shown, referring to FIG. Figure 6 , Figure 7 and Figure 8 .

[0109] The refrigeration damper is located at the lower end of the refrigeration air duct, wherein the refrigeration damper is a dual-control damper, including the second air duct D2, the third air duct D3, the second air duct switch assembly D2 and the third air duct switch assembly D3, the third air duct switch assembly D3 includes a bypass damper, and the third air duct D3 includes a bypass air duct. The second air duct D2 includes the refrigeration air duct, and the second air duct switch assembly D2 includes a refrigeration evaporator damper. The bypass damper is connected to the bypass air duct on the left side of the refrigeration evaporator. The right damper is connected to the refrigeration assembly C (including the refrigeration evaporator). At the top of the refrigeration air duct, there is a fan for air circulation.

[0110] like Figure 7 As shown, when the temperature at the air outlet of the cold storage room is low, the refrigerated evaporator damper is closed and the bypass damper is opened, and the circulation between the cold storage room and the cold storage evaporator is closed. At this time, the fan at the top of the cold storage air duct is running to circulate the air in the cold storage room. Because the cold storage bypass damper is open and the cold storage evaporator damper is closed, the air can only circulate through the bypass channel at this time, but cannot circulate through the cold storage evaporator. At this time, because the temperature at the cold storage air outlet is low, when the cold storage evaporator damper is closed, the gas circulation between the cold storage evaporator and the cold storage room is cut off, and no cold air is blown into the cold storage room. At this time, the air inside the cold storage room passes through the bypass duct and the bypass damper and enters the cold storage room for circulation, circulating the air with a higher temperature in the cold storage room into the cold storage duct, raising the temperature inside the cold storage duct.

[0111] After running for 2-3 minutes, the temperature of the refrigeration duct is almost the same as the temperature inside the refrigeration room. At this time, the target temperature at the air outlet B has risen. When the target temperature exceeds the first preset temperature, the bypass damper is closed. Then the refrigeration evaporator damper is opened, and the refrigeration evaporator is connected to the refrigeration duct. The refrigeration air circulation is as follows: Figure 6 In the cycle shown in FIG, the refrigerated air enters the third air inlet H3 at the bottom of the refrigerated room, passes through the refrigerated evaporator in the refrigerated room to cool the air, then blows upward to the refrigerated air duct, and blows out from the air outlet B through the refrigerated air duct. Then, it enters the refrigerated room, performs a cooling cycle on the refrigerated room, and then reaches the bottom of the refrigerated room and re-enters the third air inlet H3. A cycle is completed.

[0112] The third air inlet H3 is located at the bottom of the refrigerated room. The refrigerated evaporator damper is in the open state. After running for about 5-6 minutes, the target temperature at the air outlet B is already low. At this time, the damper returns to the previous state, that is, the bypass damper is open and the refrigerated evaporator damper is closed. At this time, the connection between the refrigerated and refrigerated evaporators is closed. The refrigerated air circulates alone. This cycle repeats.

[0113] Because the refrigeration time is short each time the refrigeration is turned on, it cannot be achieved if it is controlled only by the existing refrigerator system, because the refrigerator compressor cannot be started and stopped so frequently. After each compressor stops, it must be stopped for 5-10 minutes before it can be restarted, and frequent starts and stops will cause serious heating of the motor, resulting in a reduction in the life of the motor. Therefore, it is impossible to achieve refrigeration and non-refrigeration by controlling the compressor to start and shut down. However, the present invention does not require the refrigerator to be frequently turned on and off. Through the control of the damper, when the refrigeration is performed, the damper of the refrigeration evaporator is opened. Continuous refrigeration for 5-6 minutes, then the damper is closed and connected to the evaporator, refrigeration is stopped, the bypass damper is opened, and the refrigerated air circulates alone for 2-3 minutes. Then restart refrigeration. This cycle can ensure that the temperature at the air outlet position will not drop too low, and at the same time, the temperature of the entire refrigeration room continues to circulate, and the temperature difference at each position of the refrigeration room is small. The purpose of precise temperature control can be achieved.

[0114] The present invention adds a dual-control damper to the refrigerator compartment of the dual-system refrigerator, and controls the opening of the damper to achieve the closing and connection between the refrigeration air duct and the refrigeration evaporator. When closed, the refrigeration air can be circulated independently through the refrigeration fan, and when opened, it can be circulated in series with the evaporator.

[0115] By controlling the air path to be independent or connected, the purpose of controlling the air outlet temperature of the air duct can be achieved. This can prevent the refrigerated air outlet temperature from being too low, which may cause frostbite to fruits and vegetables. It can also reduce the temperature difference range of the entire refrigerated room.

[0116] It should be noted that the “first” and “second” in the embodiments of the present disclosure are only for the convenience of description and distinction and have no other specific meanings.

[0117] Fig. 9 1 is a block diagram of a refrigerator according to an exemplary embodiment. For example, the refrigerator may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0118] Reference Fig. 9 , the refrigerator may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0119] The processing component 802 generally controls the overall operation of the refrigerator, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0120] The memory 804 is configured to store various types of data to support the operation of the refrigerator. Examples of such data include instructions for any application or method operating on the refrigerator, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0121] The power component 806 provides power to the various components of the refrigerator. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the refrigerator.

[0122] The multimedia component 808 includes a screen that provides an output interface between the refrigerator and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the refrigerator is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0123] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the refrigerator is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0124] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0125] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the refrigerator. For example, the sensor assembly 814 can detect the open / closed state of the refrigerator, the relative positioning of components, such as the display and keypad of the refrigerator, and the sensor assembly 814 can also detect the position change of the refrigerator or a component of the refrigerator, the presence or absence of user contact with the refrigerator, the orientation or acceleration / deceleration of the refrigerator, and the temperature change of the refrigerator. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0126] The communication component 816 is configured to facilitate wired or wireless communication between the refrigerator and other devices. The refrigerator can access a wireless network based on a communication standard, such as WiFi, 4G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0127] In an exemplary embodiment, the refrigerator can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0128] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0129] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A temperature control structure, characterized in that: Used in refrigerators, including: At least one air duct, the air duct having an air outlet; wherein the air outlet is located in a refrigerator or a freezer; the air duct comprises a second air duct and a third air duct, the second air duct and the third air duct have the same air outlet, the second air duct has a third air inlet, and the third air duct has a fourth air inlet; A refrigeration component, the refrigeration component is located in the second air duct and is used to generate cold air; The air duct switch assembly comprises: a second air duct switch assembly located in the second air duct and a third air duct switch assembly located in the third air duct; the third air duct is located on the left side of the second air duct; at least used for connecting the air outlet with the refrigeration area to form a first circulation path when the target temperature of the air outlet is higher than the first preset temperature according to a first control signal; and separating the air outlet from the refrigeration area to form a second circulation path when the target temperature is lower than the second preset temperature according to a second control signal; when the target temperature is higher than the first preset temperature, the second air duct switch assembly conducts the second air duct according to the first control signal, and the third air duct switch assembly conducts the third air duct according to the second control signal, and the air outlet, the third air inlet and the second air duct form the first circulation path; when the target temperature is lower than the second preset temperature, the second air duct switch assembly closes the second air duct according to the second control signal, and the third air duct switch assembly conducts the third air duct according to the first control signal, and the air outlet, the fourth air inlet and the third air duct form the second circulation path; Among them, the gas in the first circulation path flows through the refrigeration area, and the cold air enters the first circulation path; the gas in the second circulation path bypasses the refrigeration area, and the cold air does not enter the second circulation path; the first preset temperature is higher than the second preset temperature.

2. The temperature control structure according to claim 1, characterized in that: The temperature control structure comprises: a temperature sensor, located at the air outlet, for detecting the target temperature; The controller is electrically connected to the temperature sensor, and is used to generate the first control signal when the target temperature is higher than the first preset temperature; and to generate the second control signal when the target temperature is lower than the second preset temperature.

3. The temperature control structure according to claim 2, characterized in that: The temperature control structure comprises: A fan is located in each of the air ducts, the first circulation path and the second circulation path are provided with the fan respectively, and the fan is used to blow the gas circulation in the first circulation path according to the third control signal and blow the gas circulation in the second circulation path according to the fourth control signal; The controller is electrically connected to the fan, and is configured to generate the third control signal when the target temperature is higher than the first preset temperature; and to generate the fourth control signal when the target temperature is lower than the second preset temperature.

4. The temperature control structure according to claim 2, characterized in that: The controller is further configured to generate a fifth control signal for controlling the refrigeration component to start refrigeration when the target temperature is higher than the first preset temperature; The controller is further configured to generate a sixth control signal for controlling the refrigeration component to stop refrigeration when the target temperature is lower than the second preset temperature.

5. The temperature control structure according to claim 1, characterized in that: The air duct comprises a first air duct; the first air duct has a first air inlet; The air duct switch assembly includes: a first air duct switch assembly, located between the refrigeration assembly and the air outlet; When the target temperature is higher than the first preset temperature, the first air duct switch assembly is in a first state; wherein, in the first state, the first air duct switch assembly serves as a part of the side wall of the first air duct, and the air outlet, the refrigeration chamber or the freezer chamber, and the first air inlet form the first circulation path.

6. The temperature control structure according to claim 5, characterized in that: When the target temperature is lower than the second preset temperature, the first air duct switch assembly is in a second state; Among them, in the second state, the first air duct switch assembly blocks the first air duct between the refrigeration assembly and the air outlet, and forms a second air inlet on the side wall of the first air duct; the air outlet, the refrigerator compartment or the freezer compartment, and the second air inlet form the second circulation path.

7. The temperature control structure according to claim 6, characterized in that: The distance between the second air inlet and the air outlet is smaller than the distance between the refrigeration component and the air outlet.

8. The temperature control structure according to claim 5, characterized in that: The first air inlet is located at the bottom of the refrigerating chamber or the freezing chamber.

9. The temperature control structure according to claim 8, characterized in that: Fans include: a first fan, located in the first air duct, for blowing the gas in the first circulation path and the second circulation path to circulate along the direction from the first fan to the air outlet; Wherein, the distance between the first fan and the air outlet is smaller than the distance between the second air inlet and the air outlet.

10. The temperature control structure according to claim 1, characterized in that: Fans include: a second fan, located in the second air duct, for blowing the gas in the first circulation path to circulate along the direction from the third air inlet to the air outlet when controlling the temperature through the first circulation path; The third fan is located in the third air duct and is used to blow the gas in the second circulation path to circulate along the direction from the fourth air inlet to the air outlet when controlling the temperature through the second circulation path.

11. A refrigerator, characterized in that: include: The temperature control structure according to any one of claims 1 to 10; The refrigerating chamber and the freezing chamber respectively have the temperature control structure.

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