Refrigeration equipment

Abstract

The present invention discloses a refrigeration device, which relates to the field of refrigeration technology, and includes: a box, a first storage container, a second storage container and an air guide, wherein the box is provided with a storage compartment and an air supply port; the first storage container and the second storage container are located in the storage compartment, and the second storage container is located above the first storage container; the air guide is provided with a first air guide duct connected to the air supply port, the first air guide duct is provided with a first air outlet and a second air outlet, the air guide is located above the second storage container, the first air outlet is used to supply air to the first storage container, and the second air outlet is used to supply air to the second storage container; wherein the first storage container and / or the second storage container is provided with a ventilation part, the ventilation part is provided with a second air guide duct, the air inlet end of the second air guide duct faces the first air outlet, and the air outlet end faces the first storage container. The top air outlet is realized by the air guide, and the air is guided to the first storage container below by the ventilation part, so as to improve the temperature uniformity.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, in particular to refrigeration equipment. Background Art

[0002] With the improvement of living standards and changes in consumption habits, people are gradually accustomed to buying food once a week / in batches. Due to the diversity and convenience of shopping channels, the storage time of fresh fish and meat ingredients has become shorter accordingly. It has gradually changed from long-term frozen storage to refrigerated / ice temperature storage. Compared with frozen storage, ice temperature storage has the advantages of short-term preservation without thawing and is very popular with users. By dividing the drawers into upper and lower layers, the back air outlets are layered to supply air, that is, the upper and lower layers are each provided with an air outlet, and the upper layer has a freezing point temperature of 0~-2℃ for fish, and the lower layer has a freezing point temperature of -2~-3℃ for meat through air volume distribution. The existing back air outlet method is prone to uneven temperature problems. When the amount of food stored is large, it is easy for the food near the air outlet to be overfrozen, and the temperature of the food far away from the air outlet and close to the front of the drawer is high, which poses a risk of poor preservation effect. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a refrigeration device that can improve temperature uniformity and food preservation effect by discharging air through multiple air outlets on the top.

[0004] According to an embodiment of the present invention, the refrigeration device comprises: a box body, a first storage container, a second storage container and an air guide member, the box body is provided with a storage compartment and an air supply port; the first storage container is located in the storage compartment; the second storage container is located in the storage compartment, and the second storage container is located above the first storage container; the air guide member is provided with a first air guide duct connected to the air supply port, the first air guide duct is provided with a first air outlet hole and a second air outlet hole, the air guide member is located above the second storage container, the first air outlet hole is used to supply air to the first storage container, and the second air outlet hole is used to supply air to the second storage container; wherein the first storage container and / or the second storage container is provided with a ventilation part, the ventilation part is provided with a second air guide duct, the air inlet end of the second air guide duct faces the first air outlet hole, and the air outlet end faces the first storage container.

[0005] The refrigeration device according to the embodiment of the present invention has at least the following beneficial effects: by arranging an air guide on the top of the first storage container and the second storage container, top air outlet is achieved, and the air is guided to the first storage container below through the ventilation part, thereby improving temperature uniformity and improving the food preservation effect.

[0006] According to some embodiments of the present invention, the second storage container is provided with a second opening, and the second air outlet faces the second opening.

[0007] According to some embodiments of the present invention, the first storage container is provided with a first opening, and the bottom of the second storage container is provided with an air distribution port, and at least part of the airflow in the second storage container enters the first opening through the air distribution port.

[0008] According to some embodiments of the present invention, a guide plate is provided at the bottom of the second storage container, and the guide plate is used to guide the airflow flowing out of the air distribution port from the outer periphery of the first opening to the inside of the first opening.

[0009] According to some embodiments of the present invention, the bottom plate of the second storage container includes a first bottom surface, a connecting surface, and a second bottom surface, the height of the first bottom surface is lower than the height of the second bottom surface, and the second bottom surface is located on the outside of the first bottom surface, the lower side of the connecting surface is connected to the first bottom surface, the upper side of the connecting surface is connected to the second bottom surface, and the air outlet is arranged on the second bottom surface.

[0010] According to some embodiments of the present invention, the air guide member includes a top plate and a sealing portion, the first air guide duct is provided on the top plate, the sealing portion extends downward from the top plate, the sealing portion is located at the periphery of the second opening, and the lower edge of the sealing portion is lower than the upper edge of the second opening.

[0011] According to some embodiments of the present invention, a folded edge is provided at an edge of the second opening, and the folded edge extends toward the sealing portion.

[0012] According to some embodiments of the present invention, the first storage container is provided with a drawer front panel, the drawer front panel is located at the front end of the first storage container and extends upward to the front side of the second storage container, and the ventilation portion is provided on the drawer front panel.

[0013] According to some embodiments of the present invention, the ventilation portion is configured as a handle of the second storage container, the handle includes a connecting portion and a handle portion, the connecting portion is arranged in a horizontal direction and connected to the front end of the second storage container, the handle portion is arranged in a vertical direction and connected to the front end of the connecting portion, and the connecting portion is provided with a through hole.

[0014] According to some embodiments of the present invention, the ventilation portion is configured as a groove of the second storage container, and the groove is located on at least one of a left side or a right side of the second storage container.

[0015] According to some embodiments of the present invention, the refrigeration device further includes a guide rail component, which is installed on the box body, and the first storage container is connected to the guide rail component, and the air volume entering the first storage container from the first air outlet is smaller than the air volume entering the second storage container from the second air outlet.

[0016] According to some embodiments of the present invention, the first storage container is provided with a return air port, the return air port and the air outlet are located at two opposite ends of the first storage container, and the air outlet is arranged toward the return air port.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A partial cross-sectional view of a refrigeration device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An exploded view of a refrigeration device in one direction is shown;

[0021] Figure 3 for Figure 1 An exploded view of the refrigeration equipment from another direction is shown;

[0022] Figure 4 for Figure 3 A partial cross-sectional view of a second storage container is shown;

[0023] Figure 5 for Figure 1 An enlarged view of point A is shown;

[0024] Figure 6 is a schematic diagram of another embodiment of a second storage container;

[0025] Figure 7 It is a top view of the first storage container and the second storage container in another embodiment.

[0026] Reference numerals:

[0027] 101, box body; 102, first storage container; 103, second storage container; 104, first opening; 105, second opening; 106, drawer front plate; 107, air supply port; 108, air guide; 109, first air guide duct; 110, first air outlet; 111, second air outlet; 112, ventilation part; 113, second air guide duct; 114, first bottom surface; 115, connection surface; 116, second bottom surface; 117, air return port;

[0028] 201, fan assembly; 202, air duct cover; 203, sliding part; 204, top plate; 205, return air duct; 206, air inlet end; 207, air outlet end; 208, limit part;

[0029] 301, air outlet; 302, bottom plate; 303, left side plate; 304, right side plate; 305, rear side plate;

[0030] 401, guide plate; 402, first guide part; 403, second guide part;

[0031] 501, sealing portion; 502, folding edge;

[0032] 601, connecting portion; 602, handle portion; 603, through hole. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Temperature is an indispensable condition for food preservation control. Food preservation requires constant temperature and suitable low temperature. Ensuring the temperature fluctuation within the minimum range is more conducive to food preservation. In order to ensure constant temperature and suitable low temperature, existing refrigerators are designed with a micro-freezing chamber, which is usually set between the refrigeration chamber and the freezer chamber.

[0038] With the rise of fresh food e-commerce in recent years, people's demand for meat and fresh food has gradually shifted from long-term storage to short-term storage. From the perspective of current refrigerator technology, ice temperature technologies such as 0℃ preservation and micro-freezing preservation are more suitable for the short-term storage needs of meat and fresh food.

[0039] In the conventional freezing process, the freezing temperature is generally 18°C ​​or even lower, which can freeze most of the water in the food. During the freezing process, ice crystals are first produced in the extracellular solution. Under the action of osmotic pressure, the water in the cell flows out, and finally the water inside and outside the cell crystallizes. In the process of water crystallization, its volume increases and the surface of the ice crystal has spikes, which will damage the cell membrane. Conventional frozen food is in a hard frozen state, so it is difficult to directly carry out subsequent processing. Generally, it needs to go through a long thawing process first. During the thawing process, the damaged cell solution flows out to produce blood, resulting in a large amount of nutrient loss. The micro-freezing preservation technology is to store food in a temperature zone near the freezing point of the organism. Only part of the food is frozen, which effectively reduces the damage of ice crystals to cells, and subsequent processing can be carried out without thawing. Compared with ordinary low-temperature refrigeration, micro-freezing preservation technology can significantly extend the shelf life of products. Therefore, for foods such as fish and meat that only need to be stored for a short period of time (1 to 2 weeks), micro-freezing preservation technology is better than conventional freezing preservation.

[0040] Refrigerator ice temperature technology can effectively inhibit the effects of microorganisms and enzymes during the storage of meat ingredients to extend the shelf life, but this type of technology does not take into account the taste and color of the ingredients. Different storage temperatures have a greater impact on the taste and color of meat ingredients. For example, fish ingredients have a higher water content and a lower fat content, so their freezing point is higher than other meat ingredients. At the same time, because the muscle composition of fish ingredients is quite different from that of meat ingredients, when fish ingredients are stored in an ice-temperature slightly frozen environment, the recrystallization of ice crystals in the cells accelerates the rupture of cell membranes and causes the release of proteases, which accelerates the reaction of fish meat in an unfavorable direction. On the other hand, ice crystals cause protein denaturation and poor water retention, resulting in poor meat color and taste during the storage of fish meat. Therefore, placing different types of ingredients in the same compartment is prone to the above problems.

[0041] Specifically, the central freezing point of meat is around -1.5 to -2.5°C, and the central freezing point of fish is around -0.5 to -1°C. Since the muscle composition of fish is quite different from that of meat, when fish and meat are stored together in an ice-cold environment, the temperature is likely to be higher than the central freezing point of the meat, and the meat is prone to spoilage. Or when the temperature is lower than the central freezing point of the fish, the ice crystals in the fish cells will recrystallize, accelerate the rupture of the cell membrane, and cause the release of proteases, which will accelerate the reaction of the fish in an unfavorable direction. On the other hand, ice crystals will cause protein denaturation and poor water retention, resulting in poor color and taste of the fish during storage.

[0042] By placing two drawers in the same storage space, one for meat and the other for fish, the two drawers are arranged in the up and down direction and realize different temperature control, thereby improving the diversity of storage functions and the accuracy of temperature control. However, in the related art, the back air outlet method is prone to uneven temperature problems. When the amount of food stored is large, the food near the air outlet is prone to overfreezing, and the food far away from the air outlet and close to the front of the drawer has a higher temperature, which poses a risk of poor preservation effect. In the structure of a single-layer drawer, the problem of uneven temperature distribution can be improved by using the layer plate above the drawer to vent air, but in the structure of a double-layer drawer, the lower drawer will be blocked by the upper drawer, and it is difficult to solve the problem of uneven temperature by using the layer plate to vent air.

[0043] Refer to the following Figures 1 to 7 , explaining how the refrigeration device of the embodiment of the present invention solves the above-mentioned problems. The refrigeration device of the embodiment of the present invention may be a refrigerator, a freezer or other products. The following description will be made taking a refrigerator as an example.

[0044] Reference Figure 1 As shown, the refrigeration device of the embodiment of the present invention includes a box body 101, and a refrigerating chamber, a temperature-changing chamber and a freezing chamber are arranged in the box body 101, and the temperature-changing chamber is located between the refrigerating chamber and the freezing chamber. The refrigeration device also includes a first storage container 102 and a second storage container 103, and the first storage container 102 and the second storage container 103 are both located in the temperature-changing chamber, and the temperature-changing chamber is a storage room.

[0045] Reference Figures 1 to 3 As shown, it can be understood that the first storage container 102 is configured as a lower drawer, that is, the first storage container 102 has a first opening 104 on the top, and the second storage container 103 is configured as an upper sliding tray, that is, the second storage container 103 has a second opening 105 on the top. In other words, the first storage container 102 and the second storage container 103 can be combined into an ice-temperature fresh-keeping drawer, which includes an upper sliding tray and a lower drawer. The upper sliding tray is arranged on the upper part of the lower drawer. When the lower drawer is pulled out, the user pulls out or pushes the upper sliding tray in to slide back and forth, and can choose to take out the food in the upper sliding tray or the lower drawer. When the upper sliding tray is completely overlapped on the upper part of the lower drawer, the lower drawer forms a relatively closed space, which has a better moisturizing effect for naked food.

[0046] Reference Figures 1 to 3As shown, it can be understood that the first storage container 102 is provided with a drawer front plate 106, which is located at the front end of the first storage container 102 and extends upward to the front side of the second storage container 103, so that when the first storage container 102 and the second storage container 103 are in the closed position, the drawer front plate 106 can close the entrance of the variable temperature chamber. Compared with the scheme of using the front end of the first storage container 102 to close the lower half of the entrance of the variable temperature chamber, and using the front end of the second storage container 103 to close the upper half of the entrance of the variable temperature chamber, the drawer front plate 106 of the first storage container 102 closes the entrance of the entire variable temperature chamber, which can reduce the gap between the first storage container 102 and the second storage container 103, improve the sealing performance, and reduce the leakage of cold air.

[0047] Reference Figure 1 and Figure 2 As shown, it can be understood that the box body 101 is provided with an air supply port 107, and the position of the air supply port 107 corresponds to the storage space. The cold air generated by the heat exchange of the refrigeration system of the refrigeration equipment flows along the air duct and is blown out from the air supply port 107, and then enters the first storage container 102 and the second storage container 103. Since the temperature of the air is low and the temperature of the food is high, the two directly exchange heat, the temperature of the air will rise, and the temperature of the food will drop. The air after the heat exchange returns to the air duct through the return air port 117, and exchanges heat with the evaporator of the refrigeration system again. Through this continuous circulation method, the temperature of the food can be lowered.

[0048] Reference Figures 1 to 3 As shown, it can be understood that the refrigeration device of the embodiment of the present invention is further provided with an air guide 108, and the air guide 108 is provided with a first air guide duct 109 connected to the air supply port 107, and the first air guide duct 109 is provided with a plurality of air outlets, and the air outlets are arranged on the bottom wall of the air guide 108, and some of the air outlets are located above the first storage container 102, which are defined as first air outlets 110, and the first air outlets 110 are used to supply air to the first storage space of the first storage container 102. Some of the air outlets are located above the second storage container 103, which are defined as second air outlets 111, and the second air outlets 111 are used to supply air to the second storage space of the second storage container 103. Compared with the solution of blowing directly to the first storage container 102 and the second storage container 103 through the air supply port 107, the use of the air guide 108 can make the temperature distribution in the first storage container 102 and the second storage container 103 more uniform.

[0049] The specific reason is that the air supply port 107 is located at the rear of the first storage container 102 and the second storage container 103. When the cold air blows out from the air supply port 107, the cold air first exchanges heat with the food at the rear of the first storage container 102 and the second storage container 103, and then reaches the front of the first storage container 102 and the second storage container 103 to exchange heat with the food. The cold air will lose cold energy during the flow, resulting in different cooling ranges of the food in the front and back. When the amount of food stored is large, the food near the air outlet is prone to overfreezing, and the temperature of the food far away from the air outlet and close to the front of the drawer is high, which poses a risk of poor preservation effect. In addition, since there is only one air supply port 107, the first storage container 102 and the second storage container 103 are prone to dead corners, and the food in the dead corners cools down slowly, which makes the temperature distribution in the first storage container 102 and the second storage container 103 uneven. After the air guide 108 is added, the cold air blown out from the air outlet 107 first enters the first air guide duct 109 of the air guide 108, and then blows out from multiple air outlets, so that the food can be cooled from multiple positions. And it is blown from top to bottom into the first storage container 102 and the second storage container 103, which is conducive to reducing the difference in the cold air flow distance of each air outlet, thereby making the cooling range of each position close to the same.

[0050] It should be noted that, in some other embodiments, the first storage container 102 and the second storage container 103 may not be connected to the air outlet through an open opening. For example, the first storage container 102 and the second storage container 103 are connected to the air outlet through a ventilation pipe.

[0051] Reference Figure 1 and Figure 2 As shown, it can be understood that the first storage container 102 is provided with a ventilation part 112, the ventilation part 112 is provided on the drawer front plate 106, the ventilation part 112 is arranged in the up-down direction, the ventilation part 112 is provided with a second air guide duct 113, the air inlet end 206 of the second air guide duct 113 faces the second air outlet hole 111, and the air outlet end 207 of the second air guide duct 113 faces the first storage container 102. Through the guidance of the second air guide duct 113, the airflow of the second air outlet hole 111 can be concentrated and guided into the first storage container 102, reducing the loss of cold air, and controlling the air outlet direction so that the airflow enters the first storage container 102 along a predetermined direction, thereby improving the refrigeration efficiency.

[0052] Reference Figure 6As shown, it can be understood that the ventilation portion 112 can also be arranged on the second storage container 103, for example, the ventilation portion 112 can be configured as a handle of the second storage container 103, and the handle is arranged at the front end of the second storage container 103. Specifically, the handle includes a connecting portion 601 and a handle portion 602, the connecting portion 601 is arranged in the horizontal direction and connected to the front end of the second storage container 103, and the handle portion 602 is arranged in the vertical direction and connected to the front end of the connecting portion 601, so that a space is formed between the handle and the second storage container 103, which is convenient for the user to put his hand into the space, and then grab the handle, pull the handle and then drive the second storage container 103 to move. The space formed between the handle and the second storage container 103 also constitutes the second air guide duct 113. The connecting portion 601 is provided with a through hole 603 penetrating the connecting portion 601. The through hole 603 is the air inlet end 206 of the second air guide duct 113. The lower end of the handle portion 602 is the air outlet end 207 of the second air guide duct 113. The cold air blown out of the first air outlet 110 flows along the second air guide duct 113 after passing through the through hole 603, and flows to the first storage container 102 under the guidance of the handle portion 602. The ventilation portion 112 and the handle of the second storage container 103 are combined into one, which makes the functions more abundant and saves space.

[0053] It should be noted that, in some other embodiments, the lower end or the middle part of the handle portion 602 is connected to the connecting portion 601, and the upper end of the handle portion 602 is higher than the connecting portion 601. At this time, the upper end of the handle portion 602 is the air inlet end 206 of the second air guide duct 113, and the through hole 603 is the air outlet end 207 of the second air guide duct 113.

[0054] Reference Figure 7 As shown, it can be understood that in other embodiments, the ventilation portion 112 can also be arranged on at least one side of the left side or the right side of the second storage container 103, and the ventilation portion 112 is configured as a groove of the second storage container 103, and the cold air blown out by the first air outlet 110 flows to the first storage container 102 through the groove.

[0055] It should be noted that the first storage container 102 and the second storage container 103 may both be provided with a ventilation portion 112 .

[0056] Reference Figure 1 and Figure 2 As shown, it can be understood that the refrigeration device also includes a tank body, an air duct component and a fan assembly 201, wherein the inner cavity of the tank body defines a storage space for the refrigeration device for installing the above-mentioned air duct component, fan assembly 201 and other components, and for storing items to be stored.

[0057] The air duct component is arranged in the gallbladder body, and the air duct component is arranged close to the rear side wall of the gallbladder body. The air duct component is used to define the supply air duct and the return air duct. The air in the storage room can enter the heat exchanger room through the return air duct, exchange heat with the evaporator in the heat exchanger room and cool down to cold air. The cooled cold air is then sent into the storage room through the supply air duct.

[0058] The fan assembly 201 is a power source, which is used to provide power to drive the air flow, so that the air in the storage room is sucked into the heat exchanger room through the return air duct for heat exchange, and the cold air in the heat exchanger room that has been cooled after heat exchange is blown into the storage room through the first air guide duct 109, and this process is continuously repeated to achieve cold air circulation.

[0059] The air duct component includes an air duct cover plate 202 disposed at the rear of the first storage container 102, and a temperature sensor is disposed on the air duct cover plate 202. The temperature sensor can control the opening and closing of the fan assembly 201 in real time according to the detected temperature, deliver cold air to the first storage container 102 to maintain the temperature of the first storage container 102 at a temperature of 0 to -1°C, and deliver cold air to the second storage container 103 to maintain the temperature of the second storage container 103 at a temperature of about -3°C. The air duct component also includes an air duct foam disposed on the air duct cover plate 202. The air duct foam is a filling material around the air duct inside the refrigeration device, which can effectively keep warm. This can not only reduce the heat exchange inside and outside the refrigeration device, but also improve the refrigeration efficiency of the refrigeration device, thereby reducing energy consumption. Polyurethane foam or polystyrene board are common air duct foam materials, both of which have good thermal insulation properties.

[0060] Reference Figure 3 and Figure 4As shown, it can be understood that the bottom of the second storage container 103 is provided with an air outlet 301, and the air outlet 301 is located near the side of the second storage container 103. After the cold air blown in from top to bottom exchanges heat with the food, at least part of the airflow leaves the second storage container 103 through the air outlet 301, and then enters the first opening 104 downward, and can continue to exchange heat with the food in the first storage container 102. The cold air enters the first storage container 102 through the ventilation part 112 and the air outlet 301, realizing surround refrigeration in multiple directions, further improving temperature uniformity. Since the set temperature in the second storage container 103 is lower than the set temperature in the first storage container 102, the airflow flowing out of the second storage container 103 can still cool the food in the first storage container 102. Furthermore, since the food in the first storage container 102 can be cooled by the air flow flowing out of the air distribution port 301 of the second storage container 103, the amount of air directly blown into the first opening 104 from the air outlet can be reduced, allowing more air to enter the second opening 105. In other words, the area of ​​the second opening 105 can be made larger, thereby increasing the capacity of the second storage container 103, reducing the avoidance space set up to allow the air flow from the air outlet to blow directly into the first opening 104, and reducing the impact on the capacity of the second storage container 103.

[0061] Reference Figures 1 to 4As shown, it can be understood that the bottom plate 302 of the second storage container 103 is provided with a step structure, which includes a first bottom surface 114, a connecting surface 115 and a second bottom surface 116. The first bottom surface 114, the connecting surface 115 and the second bottom surface 116 are annular, and the first bottom surface 114 and the second bottom surface 116 are both planes. The height of the first bottom surface 114 is lower than the height of the second bottom surface 116, and the second bottom surface 116 is located outside the first bottom surface 114. The area of ​​the second bottom surface 116 is smaller than the area of ​​the first bottom surface 114, that is, the second bottom surface 116 is smaller, and the air outlet 301 is provided on the second bottom surface 116. The area of ​​the first bottom surface 114 is larger and is mainly used to place food. The lower side of the connecting surface 115 is connected to the first bottom surface 114, and the upper side of the connecting surface 115 is connected to the second bottom surface 116. The connecting surface 115 can be an inclined surface, a curved surface or a vertical surface. When food is placed in the second storage container 103, the food mainly falls on the first bottom surface 114. When there is more food, part of the food extends upward from the first bottom surface 114 along the connecting surface 115, and the food is not easy to stick to the second bottom surface 116, so that there is a gap between the food and the second bottom surface 116, and the air outlet 301 is not easy to be blocked, ensuring that after the cold air has undergone heat exchange with the food, at least part of the air flow leaves the second storage container 103 through the air outlet 301. At the same time, the air outlet 301 is set on the second bottom surface 116, which increases the height of the air outlet 301. The liquid dripping from the food will generally accumulate on the first bottom surface 114, and it is difficult to flow out from the air outlet 301. If the liquid flows out from the air outlet 301, it will fall into the storage room and pollute the environment, or even fall into the first storage container 102 and pollute other food.

[0062] It should be noted that, in some other embodiments, the air outlet 301 can also be set on the first bottom surface 114, that is, the air outlet 301 is set on the lowest surface of the bottom plate 302 of the second storage container 103. The advantage of setting it on the side of the second storage container 103 is that it can reduce the risk of the air outlet 301 being blocked by food and reduce the risk of liquid flowing out of the air outlet 301 and entering the first storage container 102 to cause contamination.

[0063] In the related art, the first storage container is connected to the box body through a guide rail, and an air supply duct is provided on the back of the box body. The air supply duct is provided with an upper air supply port and a lower air supply port. The position of the upper air supply port corresponds to the first storage container, and the position of the lower air supply port corresponds to the second storage container. The temperature in the first storage container is lower than the temperature in the second storage container. The freezing point temperature of fish is 0℃ to -2℃ in the second storage container, and the freezing point temperature of meat is -2℃ to -3℃ in the first storage container. When the first storage container or the second storage container stores some fruits, vegetables and other foods with high water content, these foods will release water vapor in the refrigeration equipment, which will increase the humidity of the refrigeration equipment, making the humidity of the storage space higher (humidity is 60% to 80%). The temperature at the bottom of the first storage container is likely to be lower than the dew point temperature, resulting in condensation or even ice on the box liner and the side wall of the second storage container. If condensation and ice form at the guide rail position, there is a risk of corrosion / stuckness of the guide rail, affecting the user experience.

[0064] It should be noted that condensation in the storage space is not only caused by high humidity inside the box, but also related to humidity outside the box. The main reasons for the increase in humidity inside the box are: First, when users store food with high water content in a short period of time, the evaporation of water in the food and the increase in the frequency of refrigeration and defrosting cause the humidity inside the box to continue to rise, resulting in short-term condensation inside the box. Second, when the box is under low ambient temperature conditions (winter and spring), due to the low ambient temperature, the start-up time during refrigeration is significantly shortened, and the evaporator's dehumidification through refrigeration is relatively weakened, resulting in condensation inside the box; the increase in humidity outside the box causes condensation inside the box mainly when the external humidity is very high (plum rainy days, return of the south wind). When the user keeps opening the door, a large amount of external moisture flows into the box in a short period of time, causing the internal condensation to increase.

[0065] The refrigeration device of the embodiment of the present invention further includes a guide rail component, which is installed on the box body 101. Figure 2 and Figure 3 As shown, it can be understood that the first storage container 102 is provided with a sliding part 203, the sliding part 203 is connected to the guide rail component, and the air volume of the first storage container 102 entering the first storage container 102 from the first air outlet 110 is less than the air volume entering the second storage container 103 from the second air outlet 111, so that the temperature in the first storage container 102 is higher than the temperature in the second storage container 103, for example, the freezing point temperature of fish is 0°C to -2°C in the first storage container 102, and the freezing point temperature of meat is -2°C to -3°C in the second storage container 103. In this way, the layout of the upper and lower temperature zones is optimized, and the air guide 108 is arranged above the second storage container 103, so that the guide rail component is away from the area with lower temperature, effectively increasing the temperature at the bottom of the drawer and reducing the risk of condensation and icing of the guide rail component due to too low temperature.

[0066] Reference Figure 4As shown, it can be understood that the bottom of the second storage container 103 is provided with a guide plate 401, and the guide plate 401 is used to guide the airflow flowing out of the air outlet 301 from the outer periphery of the first opening 104 to the inside of the first opening 104. The guide plate 401 includes a first guide part 402 and a second guide part 403, the first guide part 402 is arranged in the vertical direction, and the second guide part 403 is arranged in the horizontal direction. The upper end of the first guide part 402 is connected to the bottom of the second storage container 103, and the lower end of the first guide part 402 is connected to the second guide part 403. The height of the first guide part 402 in the vertical direction ensures that there is a gas flow space between the second guide part 403 and the bottom of the second storage container 103, and prevents the airflow flowing out of the air outlet 301 from flowing out to the outside of the first storage container 102. The second guide part 403 is used to guide the airflow flowing out of the air outlet 301 to flow to the inside of the first storage container 102. It can also be understood that a third air guide duct is formed between the bottom of the second storage container 103 , the first air guide portion 402 and the second air guide portion 403 , the air outlet 301 is connected to the third air guide duct, and the outlet of the third air guide duct faces the central area of ​​the first opening 104 .

[0067] It is understandable that there are multiple air outlets 301, and they are distributed around the bottom of the second storage container 103. In this way, after the airflow flows out from the air outlets 301, it will converge from the surroundings of the first opening 104 to the central area of ​​the first opening 104, so that the incoming air in the first storage container 102 is more dispersed, thereby achieving the effect of making the temperature distribution in the first storage container 102 more uniform.

[0068] Reference Figure 2 , Figure 3 and Figure 5As shown, it can be understood that the air guide member 108 includes a top plate 204, the first air guide duct 109 is arranged on the top plate 204, the second storage container 103 is located below the top plate 204 and defines a fresh-keeping space with the top plate 204, and the second storage container 103 is movably arranged relative to the top plate 204. However, when the second storage container 103 moves from the withdrawal position to the preservation position, if the top plate 204 and the second storage container 103 are made to abut against each other up and down in order to ensure complete sealing, it will cause friction and interference between the second storage container 103 and the top plate 204, and at the same time increase the difficulty of user operation, seriously affecting the user experience. Therefore, in order to ensure the preservation effect and facilitate the operation of the second storage container 103, an anti-interference gap is formed between the top plate 204 and the second storage container 103, that is, when the second storage container 103 moves from the withdrawal position to the preservation position, the top plate 204 and the second storage container 103 do not contact each other in the up and down directions, thereby avoiding friction and interference during the assembly process of the second storage container 103 and improving the user experience. That is, in order to facilitate the movement of the second storage container 103 and reduce the movement resistance of the second storage container 103, there is generally a gap between the top plate 204 and the second storage container 103, causing the airflow in the second storage container 103 to overflow from the gap, thereby affecting the humidity of the second storage container 103 and the temperature in the first storage container 102. The air guide 108 also includes a sealing portion 501, which extends downward from the top plate 204, is located at the periphery of the second opening 105, and the lower edge of the sealing portion 501 is lower than the upper edge of the second opening 105.

[0069] It can be understood that the second storage container 103 includes a bottom plate 302, a left side plate 303, a right side plate 304 and a rear side plate 305 (the left and right, front and back are all understood as the front relative to the drawer front plate 106), the front side plate is arranged adjacent to the drawer front plate 106, the rear side plate 305 is located on the rear side opposite to the front side plate, the left side plate 303 and the right side plate 304 are connected between the front side plate on the front side and the rear side plate 305 on the rear side and are arranged opposite each other, and the bottom plate 302, the left side plate 303, the right side plate 304, the rear side plate 305 and the front side plate jointly define a rectangular space with one side open. The top plate 204 is opposite to the bottom plate 302 of the second storage container 103, and the sealing portion 501 serves as an extended side wall connected to the top plate 204. The extended side wall extends downward toward the side close to the second storage container 103. At this time, the extended side wall and the left plate 303, the right plate 304 and the rear side plate 305 are opposite to each other in the up and down directions, and the extended side wall forms a three-sided surrounding structure to seal the second storage container 103.

[0070] Reference Figure 5As shown, it can be understood that a folded edge 502 is provided at the edge of the second opening 105, and the folded edge 502 extends toward the sealing portion 501. The folded edge 502 is close to the sealing portion 501, and the distance between the sealing portion 501 and the folded edge 502 is reduced, that is, the sealing portion 501 and the folded edge 502 are abutted or have a small gap, thereby preventing cold wind from overflowing from between the air guide 108 and the second storage container 103.

[0071] It is understandable that in some other embodiments, the sealing portion 501 may also include a first sealing section and a second sealing section, the first sealing section is arranged in the vertical direction, the second sealing section is arranged obliquely, the first sealing section and the folded edge 502 are arranged relative to each other in the up-down direction, and the two are avoided in the up-down direction, so as to facilitate the pulling and pulling operation of the second storage container 103. The second sealing section and the folded edge 502 overlap, and the function of the second sealing section is to seal the gap between the first sealing section and the folded edge 502 to achieve the sealing of the fresh-keeping space.

[0072] Reference Figures 1 to 3 As shown, it can be understood that a return air port 117 is provided on the back of the first storage container 102, and the air duct component includes a return air duct 205. The return air port 117 is directly connected to the return air duct 205. The cold air blown out from the air distribution port 301 flows from top to bottom and finally flows back to the return air duct 205 through the return air port 117. During the whole process, the cold air inside the storage room flows in a direction to reduce the overflow of cold air.

[0073] Reference Figure 2 and Figure 3 As shown, it can be understood that the first storage container 102 is provided with a limiting portion 208, which is located on the left and right sides of the first storage container 102 and extends upward. When the second storage container 103 slides on the first storage container 102, the limiting portion 208 can play a guiding and limiting role, so that the second storage container 103 moves along the front-to-back direction and is not easy to shake. The limiting portion 208 can also reduce the overflow of cold air in the first storage container 102 and improve the moisturizing effect.

[0074] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Refrigeration equipment, characterized in that include: The box body is provided with a storage compartment and an air supply vent; A first storage container, located in the storage room; a second storage container, located in the storage room, and the second storage container is located above the first storage container; an air guide member, provided with a first air guide duct connected with the air supply port, the first air guide duct being provided with a first air outlet hole and a second air outlet hole, the air guide member being located above the second storage container, the first air outlet hole being used to supply air to the first storage container, and the second air outlet hole being used to supply air to the second storage container; Wherein, the first storage container and / or the second storage container is provided with a ventilation part, the ventilation part is provided with a second air guide duct, the air inlet end of the second air guide duct faces the first air outlet, and the air outlet end faces the first storage container; the first storage container is provided with a first opening, and the bottom of the second storage container is provided with an air distribution port, and at least part of the airflow in the second storage container enters the first opening through the air distribution port; the bottom of the second storage container is provided with a guide plate, and the guide plate is used to guide the airflow flowing out of the air distribution port from the outer periphery of the first opening to the inside of the first opening; the second storage container is provided with a guide plate at the bottom, and the guide plate is used to guide the airflow flowing out of the air distribution port from the outer periphery of the first opening to the inside of the first opening; The bottom plate of the container includes a first bottom surface, a connecting surface and a second bottom surface, the height of the first bottom surface is lower than the height of the second bottom surface, and the second bottom surface is located on the outside of the first bottom surface, the lower side of the connecting surface is connected to the first bottom surface, the upper side of the connecting surface is connected to the second bottom surface, and the air outlet is arranged on the second bottom surface; the air guide member includes a top plate and a sealing portion, the first air guide duct is arranged on the top plate, the sealing portion extends downward from the top plate, the second storage container is provided with a second opening, the sealing portion is located on the outer periphery of the second opening, and the lower edge of the sealing portion is lower than the upper edge of the second opening.

2. The refrigeration equipment according to claim 1, characterized in that: The second air outlet faces the second opening.

3. The refrigeration equipment according to claim 1, characterized in that: A folded edge is provided at the edge of the second opening, and the folded edge extends toward the sealing portion.

4. The refrigeration equipment according to claim 1, characterized in that: The first storage container is provided with a drawer front panel, the drawer front panel is located at the front end of the first storage container and extends upward to the front side of the second storage container, and the ventilation part is arranged on the drawer front panel.

5. The refrigeration equipment according to claim 1, characterized in that: The ventilation part is configured as a handle of the second storage container, and the handle includes a connecting part and a handle part. The connecting part is arranged in a horizontal direction and connected to the front end of the second storage container, and the handle part is arranged in a vertical direction and connected to the front end of the connecting part. The connecting part is provided with a through hole.

6. The refrigeration device according to claim 1, characterized in that: The ventilation portion is configured as a groove of the second storage container, and the groove is located on at least one of a left side or a right side of the second storage container.

7. The refrigeration device according to claim 1, characterized in that: The refrigeration device also includes a guide rail component, which is installed on the box body, and the first storage container is connected to the guide rail component. The air volume entering the first storage container from the first air outlet is smaller than the air volume entering the second storage container from the second air outlet.

8. The refrigeration device according to claim 1, characterized in that: The first storage container is provided with an air return port, the air return port and the air outlet are located at two opposite ends of the first storage container, and the air outlet is arranged toward the air return port.

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