Refrigerating and freezing device

Abstract

The utility model discloses a refrigerating and freezing device. The refrigerating and freezing device comprises a storage chamber, an airflow generation assembly and a temperature detection piece. The storage chamber is provided with a first containing cavity. The airflow generation assembly is arranged on the inner wall of the first containing cavity, and airflow flowing can be generated in the first containing cavity. The temperature detection part is arranged on the airflow generation assembly and can detect the first temperature of the area where the airflow generation assembly is located. And when the first temperature is higher than the preset temperature of the refrigerating and freezing device, the airflow generating assembly is opened. And when the first temperature is lower than the preset temperature of the refrigerating and freezing device, the airflow generating assembly is closed. The temperature in the storage chamber of the refrigerating and freezing device is uniform, food storage is facilitated, and therefore the use experience of a user is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and in particular to a refrigeration and freezing device. Background Art

[0002] As people's living standards continue to improve, refrigeration and freezing devices such as refrigerators and freezers have become necessities of people's lives. Refrigeration and freezing devices use refrigeration to maintain the interior of their storage chambers at a low temperature, thereby better preserving food.

[0003] However, there are problems such as uneven temperature and slow natural convection inside the storage chamber of the refrigerator and freezer, which will affect the quality of the food stored in the storage chamber and is not conducive to the storage of the food in the storage chamber, thereby reducing the user experience. Utility Model Content

[0004] In view of this, the present disclosure provides a refrigeration and freezing device, in which the temperature inside the storage chamber of the refrigeration and freezing device is uniform, which is conducive to the storage of food, thereby improving the user experience.

[0005] Specifically, the present disclosure is implemented through the following technical solutions.

[0006] According to a first aspect of an embodiment of the present disclosure, a refrigeration and freezing device is provided, comprising a storage chamber, an airflow generating component and a temperature detecting component. The storage chamber is provided with a first accommodating cavity. The airflow generating component is arranged on the inner wall of the first accommodating cavity, and can generate airflow in the first accommodating cavity. The temperature detecting component is arranged on the airflow generating component, and can detect a first temperature of the area where the airflow generating component is located. When the first temperature is greater than a preset temperature of the refrigeration and freezing device, the airflow generating component is turned on. When the first temperature is less than the preset temperature of the refrigeration and freezing device, the airflow generating component is turned off.

[0007] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects.

[0008] When the refrigeration and freezing device is working, the internal temperature of the storage chamber will decrease, and food can be stored in the first accommodating chamber. However, the temperature at various positions in the first accommodating chamber is not uniform. An airflow generating component is arranged on the inner wall of the first accommodating chamber, and a temperature detecting component is arranged on the airflow generating component to detect the first temperature of the area where the airflow generating component is located. When the first temperature detected by the temperature detecting component is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component will be turned on, thereby generating an airflow in the first accommodating chamber and flowing in the first accommodating chamber. The cold air in the first accommodating chamber is driven to various positions in the first accommodating chamber through the airflow. Thereby, the uniformity of the temperature in the storage chamber is improved, which is beneficial to the storage of food, and then the user experience of the refrigeration and freezing device is improved. In addition, when the first temperature is lower than the preset temperature of the refrigeration and freezing device, the airflow generating component is turned off to reduce the energy waste of the airflow generating component.

[0009] The technical solution of the present disclosure is further described below.

[0010] In one of the embodiments, the refrigeration and freezing device further comprises a fixing member, which is fixedly connected to the airflow generating assembly, and the airflow generating assembly is fixedly connected to the inner wall of the first accommodating chamber via the fixing member.

[0011] In one embodiment, the fixing member is detachably fixedly connected to the inner wall of the first accommodating cavity.

[0012] In one of the embodiments, the refrigeration and freezing device further comprises a protection component, the protection component is provided with a second accommodating cavity, and the protection component is covered on the airflow generating component through the second accommodating cavity.

[0013] In one of the embodiments, the protective component is provided with a ventilation hole, and the second accommodating cavity is connected with the first accommodating cavity through the ventilation hole.

[0014] In one embodiment, the temperature detecting element is located in the second accommodating cavity.

[0015] In one embodiment, when the first temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component can change the rotation speed of the airflow generating component according to the difference between the first temperature and the preset temperature of the refrigeration and freezing device to change the size of the airflow generated by the airflow generating component.

[0016] In one embodiment, when the first temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component operates at a first speed for a first period of time. After the airflow generating component operates for the first period of time, the temperature detecting member detects a second temperature of the area where the airflow generating component is located. When the second temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component operates at a second speed. The first speed is less than the second speed.

[0017] In one embodiment, when the second temperature is lower than a preset temperature of the refrigerator / freezer, the airflow generating component is turned off.

[0018] In one embodiment, the refrigeration and freezing device is a direct cooling refrigerator or freezer.

[0019] 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

[0020] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 The figure is a schematic structural diagram of a refrigeration and freezing device shown in an embodiment.

[0023] Figure 2 The figure is a schematic structural diagram of a refrigeration and freezing device shown in an embodiment.

[0024] Figure 3 It is a structural schematic diagram of other structures such as an airflow generating component shown in an embodiment.

[0025] Description of Figure Numbers.

[0026] 10. Refrigeration and freezing device; 100. Storage chamber; 110. First accommodating chamber; 200. Airflow generating component; 210. Control device; 300. Temperature detecting component; 400. Fixing component; 500. Protection component; 510. Second accommodating chamber; 520. Ventilation hole. DETAILED DESCRIPTION

[0027] 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 and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a", "an" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0030] As people's living standards improve, the use of refrigeration and freezing devices such as refrigerators and freezers is becoming more and more common. However, there are many types and brands of refrigeration and freezing devices, which makes consumers have a lot of choices. How to gain the favor of consumers and improve product competitiveness has become an issue that refrigeration and freezing device manufacturers are paying more and more attention to.

[0031] Refrigeration and freezing devices use refrigeration to keep the interior of their storage chamber at a low temperature, so as to better preserve food. However, in the related art, there are problems such as uneven temperature and slow natural convection inside the storage chamber of existing refrigeration and freezing devices, which will affect the quality of the food stored in the storage chamber and is not conducive to the storage of food in the storage chamber, thereby reducing the user experience.

[0032] Based on this, the present disclosure provides a refrigeration and freezing device 10, the temperature inside the storage chamber 100 of the refrigeration and freezing device 10 is uniform, which is conducive to the storage of food, thereby improving the user experience.

[0033] like Figure 1 as well as Figure 2 As shown, the refrigeration and freezing device 10 includes a storage chamber 100, an airflow generating component 200 and a temperature detecting component 300. The storage chamber 100 is provided with a first accommodating chamber 110. The airflow generating component 200 is arranged on the inner wall of the first accommodating chamber 110, and the airflow generating component 200 can generate airflow in the first accommodating chamber 110. The temperature detecting component 300 is arranged on the airflow generating component 200, and the temperature detecting component 300 can detect the first temperature of the area where the airflow generating component 200 is located. Wherein, when the first temperature is greater than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 is turned on. When the first temperature is less than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 is turned off.

[0034] In this way, when the refrigeration and freezing device 10 is working, the internal temperature of the storage chamber 100 will decrease, and food can be stored in the first accommodating chamber 110. However, the temperature of each position in the first accommodating chamber 110 is not uniform. By setting the airflow generating component 200 on the inner wall of the first accommodating chamber 110, and setting the temperature detection member 300 on the airflow generating component 200, the first temperature of the area where the airflow generating component 200 is located is detected. When the first temperature detected by the temperature detection member 300 is greater than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 will be opened, so that an airflow is generated in the first accommodating chamber 110 and flows in the first accommodating chamber 110. The cold air in the first accommodating chamber 110 is driven to each position in the first accommodating chamber 110 through the airflow. Thereby improving the uniformity of the temperature in the storage chamber 100, which is conducive to the storage of food, and thus improving the user's experience of the refrigeration and freezing device 10. In addition, when the first temperature is less than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 is closed to reduce the energy waste of the airflow generating component 200.

[0035] It should be noted that the refrigeration and freezing device 10 may have one or more storage chambers 100, and the specific number and function of the storage chambers 100 may be configured according to pre-determined requirements, such as being configured as a refrigeration chamber, a freezing chamber, etc. according to a set storage temperature.

[0036] It should be noted that there are many specific implementations of the airflow generating component 200, including a fan, a blower, and the like.

[0037] It should be noted that there are many specific implementations of the temperature detection element 300, including a temperature sensor, a temperature controller, and the like.

[0038] It should be noted that the first temperature of the area where the airflow generating component 200 is located can be understood as: an area extending a certain distance around the airflow generating component 200. Specifically, the distance is not further limited here and can be set according to actual needs.

[0039] It should be noted that the airflow generating component 200 and the temperature detecting component 300 may be one or more and may be configured according to implementation requirements, and no further limitation is made herein.

[0040] It should be noted that the airflow generating assembly 200 and the temperature detecting element 300 can be installed at any position in the storage chamber 100 as long as the uniformity of the temperature in the storage chamber 100 can be improved.

[0041] In practice, the researchers found that the air convection in the corners of the storage chamber 100 of the refrigerator-freezer 10 is relatively slow. In some embodiments, the airflow generating assembly 200 is disposed at a corner in the first accommodating chamber 110. Thus, by disposing the airflow generating assembly 200 at a corner in the first accommodating chamber 110, the corners of the storage chamber 100 can be better convected, and the temperature uniformity in the storage chamber 100 can be further improved.

[0042] In some embodiments, the refrigerator-freezer 10 is a direct-cooling refrigerator or freezer.

[0043] Researchers have found in practice that direct cooling refrigerators and freezers cool down directly by absorbing heat from the evaporator, and no fan is provided to make the air flow in the direct cooling refrigerator or freezer flow. Therefore, the temperature is proportional to the distance from the evaporator. The closer the distance, the lower the temperature, and vice versa. This leads to uneven temperature distribution in the storage chamber 100. It is not conducive to the storage of food in the storage chamber 100. In addition, the internal space of the direct cooling refrigerator and freezer is relatively closed, and the air flows slowly, resulting in the inability to emit the smell in the space in time, resulting in various odors, which reduces the user's experience. The refrigeration and freezing device 10 of the present disclosure is provided with an airflow generating component 200, so that the cold air in the storage chamber 100 of the direct cooling refrigerator and freezer flows to various positions in the storage chamber 100 through the airflow generating component 200, thereby improving the uniformity of the temperature in the storage chamber 100 of the direct cooling refrigerator and freezer, which is conducive to the storage of food, thereby improving the user's experience of using the direct cooling refrigerator and freezer.

[0044] Of course, in other embodiments, the refrigeration and freezing device 10 may also be an air-cooled refrigerator to further improve the temperature uniformity of the storage chamber 100 of the air-cooled refrigerator.

[0045] In some embodiments, when the first temperature is greater than the preset temperature of the refrigerating and freezing device 10, the airflow generating component 200 can change the rotation speed of the airflow generating component 200 according to the difference between the first temperature and the preset temperature of the refrigerating and freezing device 10, so as to change the size of the airflow generated by the airflow generating component 200. For example, the greater the difference between the first temperature and the preset temperature, the greater the rotation speed of the airflow generating component 200. The smaller the difference between the first temperature and the preset temperature, the smaller the rotation speed of the airflow generating component 200. In this way, when the difference between the first temperature and the preset temperature is large, the rotation speed of the airflow generating component 200 is correspondingly increased to increase the size of the airflow, accelerate the flow of the airflow in the storage chamber 100, and thus improve the uniformity of the temperature in the storage chamber 100. When the difference between the first temperature and the preset temperature is small, the rotation speed of the airflow generating component 200 is correspondingly reduced to reduce the size of the airflow.

[0046] It should be noted that the rotation speed of the corresponding airflow generating assembly 200 can be set according to the difference between the first temperature and the preset temperature.

[0047] In some embodiments, when the first temperature is greater than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 runs at the first speed for the first duration. After the airflow generating component 200 runs for the first duration, the temperature detecting member 300 detects the second temperature of the area where the airflow generating component 200 is located. When the second temperature is greater than the preset temperature of the refrigeration and freezing device 10, the airflow generating component 200 runs at the second speed. Among them, the first speed is less than the second speed. In this way, when the airflow generating component 200 runs at the first speed for the first duration, if the second temperature of the area where the airflow generating component 200 is located is still greater than the preset temperature, the speed of the airflow generating component 200 is increased, and it is operated at the second speed to further speed up the speed of the airflow flow. Thereby further improving the efficiency of achieving temperature uniformity in the storage chamber 100. Further improving the user experience.

[0048] Furthermore, in some embodiments, when the second temperature is lower than a preset temperature of the refrigerator-freezer 10 , the airflow generating assembly 200 is turned off to reduce energy waste of the airflow generating assembly 200 .

[0049] like Figure 2 As shown, in some embodiments, the airflow generating assembly 200 further includes a control device 210, which is used to perform the above functions, thereby controlling the opening or closing of the airflow generating assembly 200. Specifically, the control device 210 includes a memory and a processor. The memory is used to receive and store information. The processor is used to perform the above functions.

[0050] It should be noted that the processor may be a micro-controller unit (MCU), a central processing unit (CPU) or a digital signal processor (DSP), etc.

[0051] like Figure 2 As shown, in some embodiments, the refrigerator-freezer 10 further includes a fixing member 400, the fixing member 400 is fixedly connected to the airflow generating assembly 200, and the airflow generating assembly 200 is fixedly connected to the inner wall of the first accommodating chamber 110 through the fixing member 400. In this way, the airflow generating assembly 200 is fixedly connected to the inner wall of the first accommodating chamber 110 through the fixing member 400, thereby improving the reliability of the airflow generating assembly 200 when working.

[0052] like Figure 2As shown, in some embodiments, the fixing member 400 is detachably fixedly connected to the inner wall of the first accommodating chamber 110. In this way, by designing the fixing member 400 to be detachably fixedly connected to the inner wall of the first accommodating chamber 110, the airflow generating assembly 200 is detachably fixedly connected to the inner wall of the first accommodating chamber 110. The airflow generating assembly 200 and the temperature detecting member 300 can be arranged at various positions of the inner wall of the first accommodating chamber 110 according to the actual needs of the refrigerating and freezing device 10, so as to better achieve the temperature uniformity in the first accommodating chamber 110, thereby improving the reliability of the refrigerating and freezing device 10 in storing articles and improving the user's experience of the refrigerating and freezing device 10.

[0053] It should be noted that there are many ways to detachably fix the fixing member 400 to the inner wall of the first accommodating cavity 110, including snap-on fixing, screw-on fixing, magnetic attraction, etc.

[0054] In an example, Figure 2 As shown, the fixing member 400 is a suction cup, which is detachably fixed to the inner wall of the first accommodating cavity 110. In this way, the fixing member 400 is designed as a suction cup, which can be more conveniently detachably fixed to the inner wall of the first accommodating cavity 110. And compared with the clamping and screwing methods, there is no need to make corresponding improvements to the inner wall of the first accommodating cavity 110. The suction cup has higher adaptability.

[0055] like Figure 3 As shown, in some embodiments, the refrigeration and freezing device 10 further includes a protection component 500, the protection component 500 is provided with a second accommodating chamber 510, and the protection component 500 is covered on the airflow generating component 200 through the second accommodating chamber 510. In this way, the airflow generating component 200 is arranged in the second accommodating chamber 510, and the protection component 500 is covered on the airflow generating component 200. When the airflow generating component 200 is working, it is prevented that the airflow generating component 200 contacts with the items stored in the storage chamber 100, causing damage to the airflow generating component 200. In addition, the protection component 500 can also prevent the airflow generating component 200 from causing harm to the user when the user takes and places the items, thereby improving the safety of the refrigeration and freezing device 10.

[0056] In some embodiments, the protection component 500 has good thermal conductivity, so that the inside of the protection component 500 and the outside can achieve better heat transfer, further improving the temperature uniformity in the first accommodation cavity 110 .

[0057] It should be noted that the protective component 500 can be made of a variety of materials, including copper, aluminum, aluminum alloy, steel and other materials with good thermal conductivity.

[0058] like Figure 3As shown, in some embodiments, the protective assembly 500 is provided with a ventilation hole 520, and the second accommodating chamber 510 is communicated with the first accommodating chamber 110 through the ventilation hole 520. In this way, by providing the ventilation hole 520 in the protective assembly 500, the first accommodating chamber 110 and the second accommodating chamber 510 are communicated. When the airflow generating assembly 200 disposed in the second accommodating chamber 510 is working, the generated airflow can be discharged to the outside of the protective assembly 500, that is, to the first accommodating chamber 110 through the ventilation hole 520. Thereby, the airflow in the first accommodating chamber 110 flows to improve the temperature uniformity in the storage chamber 100.

[0059] It should be noted that the ventilation hole 520 can be one or more, and can be set according to implementation needs, and is not further limited here.

[0060] like Figure 3 As shown, in some embodiments, the temperature detection member 300 is located in the second accommodating cavity 510. In this way, the temperature detection member 300 is arranged in the second accommodating cavity 510, so that the protection component 500 can protect the temperature detection member 300.

[0061] Of course, in other embodiments, the temperature detection member 300 may also be located in the second accommodation chamber 510. In this way, the temperature detection member 300 is arranged outside the protective assembly 500, so that the temperature detection member 300 can avoid the protective assembly 500 and directly detect the temperature of the first accommodation chamber 110 in the area where the airflow generating assembly 200 is located. In this way, the temperature of the first accommodation chamber 110 can be better obtained, so as to more accurately open or close the airflow generating assembly 200.

[0062] It should be noted that the above embodiments can complement each other if there is no conflict.

[0063] The components included in the "component", "device" and "equipment" disclosed in the present invention can also be flexibly combined, that is, modular production can be carried out according to actual conditions and modular assembly can be carried out as an independent module; or they can be assembled separately to form a module in the present device.

[0064] The division of the above components in the present disclosure is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the present disclosure. As long as the above components are included and have the same function, it should be understood that they are equivalent technical solutions of the present disclosure. In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present disclosure.

[0065] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0067] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixedly arranged on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-fitting, integral molding, welding, etc., which can be achieved in traditional technologies and will not be repeated here.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the utility model concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A refrigeration and freezing device, characterized in that: include: The storage chamber is provided with a first accommodating cavity; An airflow generating component, disposed on the inner wall of the first accommodating cavity, capable of generating airflow in the first accommodating cavity; as well as a temperature detection element, disposed on the airflow generating component, capable of detecting a first temperature of an area where the airflow generating component is located; When the first temperature is greater than a preset temperature of the refrigerating and freezing device, the airflow generating component is turned on; when the first temperature is less than a preset temperature of the refrigerating and freezing device, the airflow generating component is turned off.

2. The refrigeration and freezing device according to claim 1, characterized in that: The refrigeration and freezing device further comprises a fixing member, wherein the fixing member is fixedly connected to the airflow generating assembly, and the airflow generating assembly is fixedly connected to the inner wall of the first accommodating cavity via the fixing member.

3. The refrigeration and freezing device according to claim 2, characterized in that: The fixing member is detachably fixedly connected to the inner wall of the first accommodating cavity.

4. The refrigeration and freezing device according to claim 1, characterized in that: The refrigeration and freezing device further comprises a protection component, wherein the protection component is provided with a second accommodating cavity, and the protection component is covered on the airflow generating component via the second accommodating cavity.

5. The refrigerator-freezer according to claim 4, characterized in that: The protection component is provided with a ventilation hole, and the second accommodating cavity is communicated with the first accommodating cavity through the ventilation hole.

6. The refrigerator-freezer according to claim 4, characterized in that: The temperature detecting component is located in the second accommodating cavity.

7. The refrigerator-freezer according to claim 1, characterized in that: When the first temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component can change the rotation speed of the airflow generating component according to the difference between the first temperature and the preset temperature of the refrigeration and freezing device to change the size of the airflow generated by the airflow generating component.

8. The refrigerator-freezer according to claim 1, characterized in that: When the first temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component runs at a first speed for a first period of time; after the airflow generating component runs for the first period of time, the temperature detecting component detects a second temperature of the area where the airflow generating component is located; when the second temperature is greater than the preset temperature of the refrigeration and freezing device, the airflow generating component runs at a second speed; wherein the first speed is less than the second speed.

9. The refrigerator-freezer according to claim 8, characterized in that: When the second temperature is lower than a preset temperature of the refrigerating and freezing device, the airflow generating component is turned off.

10. The refrigerator-freezer according to any one of claims 1 to 9, characterized in that: The refrigeration and freezing device is a direct cooling refrigerator or freezer.

Images