Refrigeration appliance

Abstract

The application discloses a refrigeration equipment, and relates to the technical field of refrigeration, wherein the refrigeration equipment comprises a box body, a first evaporator, a first fan, a first storage container and a cold storage device, the box body is provided with a refrigeration chamber and a variable-temperature chamber, the first fan is used for transmitting the cold quantity of the first evaporator to the refrigeration chamber and the variable-temperature chamber, the first fan generates an air flow to form a refrigeration path into the variable-temperature chamber, the first storage container and the cold storage device are arranged in the variable-temperature chamber, and the cold storage device is located on the refrigeration path; in the refrigeration process, the cold air flow flows along the refrigeration path and passes through the cold storage device; the cold storage device can accumulate the cold quantity; in the defrosting process, the cold storage device can release the cold quantity, so that the first storage container can maintain a low temperature, the influence of the hot air in the refrigeration chamber on the temperature of the first storage container is reduced, and the preservation effect of food materials in the first storage container is improved.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and particularly to refrigeration equipment. Background Technology

[0002] In related technologies, refrigeration equipment often uses a recirculation defrosting method to defrost the internal evaporator. Specifically, this involves continuously running a fan built into the air duct to circulate hot air within the refrigerator compartment. This hot air then flows back to the evaporator through the air duct and exchanges heat with it, causing the evaporator's temperature to rise and the frost condensed on it to gradually melt. However, due to the low efficiency of air circulation heat exchange, the defrosting time is long, and the temperature inside the variable temperature compartment continues to rise, severely impacting the preservation effect of the compartment. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a refrigeration device in which a cold storage device can accumulate cold energy during the refrigeration process and release cold energy during the defrosting process, keeping the first storage container at a low temperature and reducing the impact of the hot air in the refrigerator compartment on the temperature of the first storage container, thereby improving the preservation effect on the food in the first storage container.

[0004] According to a first aspect of the present invention, a refrigeration device includes: a housing having a cold storage compartment and a variable temperature compartment; a first evaporator; a first fan for transferring the cooling capacity of the first evaporator to the cold storage compartment and the variable temperature compartment, wherein the first fan generates airflow to form a refrigeration path into the variable temperature compartment; a first storage container located within the variable temperature compartment; and a cold storage device disposed within the variable temperature compartment and located within the refrigeration path.

[0005] The refrigeration device according to embodiments of the present invention has at least the following beneficial effects: When the refrigeration device is refrigerating, the first evaporator emits cold energy, and the first fan can transfer the cold energy of the first evaporator to the refrigerator compartment and the variable temperature compartment to achieve a refrigeration effect. Specifically, the first fan operates and generates airflow, which forms a refrigeration path. The cold energy of the first evaporator is transferred to the variable temperature compartment through the refrigeration path. The cold storage device is located in the variable temperature compartment and in the refrigeration path, so that the cold storage device can accumulate cold energy. When the refrigeration device is defrosting, the first evaporator stops refrigerating, and the first fan continues to operate and generate airflow. The airflow can return the hot air in the refrigerator compartment to the first evaporator. The hot air exchanges heat with the first evaporator, thereby gradually melting the frost on the first evaporator and achieving defrosting. At the same time, since the cold storage device has accumulated cold energy during the above-mentioned refrigeration process, it will release cold energy during the defrosting process, keeping the temperature in the variable temperature compartment at a low level. This can reduce the influence of hot air on the temperature of the variable temperature compartment and ensure a better preservation effect of the first storage container.

[0006] According to some embodiments of the present invention, the housing is provided with a heat exchange chamber, the first fan and the first evaporator are located in the heat exchange chamber, the refrigeration equipment includes an air guide located in the variable temperature chamber, the air guide is located above the first storage container, the air guide is provided with a first air duct communicating with the heat exchange chamber, the first air duct is provided with a first air outlet, the first air outlet is used to supply air to the first storage container, and the cold storage device is provided in the first air duct.

[0007] According to some embodiments of the present invention, the cold storage device is provided at the bottom of the first storage container.

[0008] According to some embodiments of the present invention, the refrigeration device includes a second storage container located in the variable temperature compartment, the second storage container being located below the first storage container, the first air duct having a second air outlet for supplying air to the second storage container, the first storage container and / or the second storage container having a ventilation section, the ventilation section having a second air duct, the air inlet of the second air duct facing the second air outlet, and the air outlet facing the second storage container.

[0009] According to some embodiments of the present invention, the second air duct includes an air supply section located at the bottom of the first storage container, and the cold storage device is provided in the air supply section.

[0010] According to some embodiments of the present invention, the bottom of the first storage container is provided with an air distribution port, and at least part of the airflow in the first storage container enters the air supply section through the air distribution port.

[0011] According to some embodiments of the present invention, the refrigeration path includes a first path with the cold storage device and a second path without the cold storage device. Part of the airflow generated by the first fan enters the first storage container through the first path, and part of it enters the first storage container through the second path. The first path is located below the second path.

[0012] According to some embodiments of the present invention, the refrigeration device includes a second storage container located in the variable temperature chamber, the second storage container being located below the first storage container, the bottom of the first storage container being provided with the cold storage device, the refrigeration path including a third path with the cold storage device and a fourth path without the cold storage device, the airflow generated by the first fan partially entering the second storage container via the third path and partially entering the second storage container via the fourth path, the third path being located above the fourth path.

[0013] According to some embodiments of the present invention, the cold storage device contains a cold storage agent, and the freezing point of the cold storage agent is in the range of 0°C to -3°C.

[0014] According to some embodiments of the present invention, the refrigeration device includes a second fan for conveying the cold energy stored in the cold storage device to the first storage container.

[0015] According to some embodiments of the present invention, there are multiple cold storage devices, and a gap is formed between two adjacent cold storage devices for the first fan to generate airflow through.

[0016] According to some embodiments of the present invention, the cold storage device is provided with a clearance hole for the airflow generated by the first fan to pass through.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 These are schematic diagrams of the structure of a refrigeration device according to some embodiments of the present invention; Figure 2 This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention; Figure 3 This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention from another perspective; Figure 4 for Figure 3 Schematic diagram of the refrigeration equipment in the diagram; Figure 5 This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention; Figure 6 for Figure 5 Schematic diagram of the refrigeration equipment in the diagram; Figure 7 This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention; Figure 8 for Figure 7 Schematic diagram of the refrigeration equipment in the diagram; Figure 9 This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention; Figure 10 for Figure 9 Schematic diagram of the refrigeration equipment in the diagram; Figure 11 Schematic diagram of a refrigeration device according to some embodiments of the invention; Figure 12This is a partial structural schematic diagram of a refrigeration device according to some embodiments of the present invention; Figure 13 for Figure 12 Schematic diagram of the refrigeration equipment in the diagram; Figure 14 for Figure 12 Enlarged view of point A in the middle; Figure 15 for Figure 12 Enlarged view of point B in the middle; Figure 16 for Figure 12 Enlarged view of point C in the middle; Figure 17 This is a schematic diagram of the structure of the first air duct cover plate and the cold storage device of the air guide component of the refrigeration equipment according to some embodiments of the present invention. Figure 18 This is a schematic diagram of the structure of the first air duct cover plate and the cold storage device of the air guide component of the refrigeration equipment in other embodiments of the present invention.

[0019] Figure label: Refrigeration equipment 1000; 100 housing, 110 cold storage compartment, 120 variable temperature compartment, 130 air duct structure, 131 heat exchange chamber, 132 first channel, 133 second channel, 134 return air vent, 135 foam component, 136 first damper, 137 second damper, 138 first air outlet, 139 second air outlet, 140 first evaporator, 150 first fan, 160 second fan; First storage container 200, fourth air duct 210, fifth air outlet 211, drawer shell 220, drawer body 230, partition channel 240, first section 241, second section 242, air distribution port 250; Second storage container 300, second air duct 310, air guide section 311, air supply section 312, third air outlet 3121; Cold storage device 400, clearance hole 410; Air guide 500, first air guide duct 510, first air outlet 511, second air outlet 512, third air guide duct 530, fourth air outlet 531, first air duct cover 540; Cooling path 600, first path 610, second path 620, third path 630, fourth path 640. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 This invention provides a refrigeration device 1000, which can be configured as a refrigerator or freezer.

[0025] Specifically, refer to Figure 1 The refrigeration equipment 1000 includes a housing 100, a first evaporator 140, a first fan 150, a first storage container 200, and a cold storage device 400. The housing 100 has a cold storage compartment 110 and a variable temperature compartment 120. The first storage container 200 and the cold storage device 400 are both located within the variable temperature compartment 120. An air duct structure 130 is located inside the housing 100, at the rear of the housing 100. Both the first evaporator 140 and the first fan 150 are housed within the air duct structure 130.

[0026] During the refrigeration process, the first evaporator 140 generates cooling energy, and the first fan 150 rotates to produce airflow. The direction of airflow can be referenced. Figure 1As indicated by the dotted arrow, the airflow carries the cooling capacity of the first evaporator 140 into the refrigerator compartment 110 and the variable temperature compartment 120. The airflow in the refrigerator compartment 110 and the variable temperature compartment 120 circulates back into the air duct structure 130, thereby exchanging heat with the first evaporator 140. After exchanging heat with the first evaporator 140, the airflow temperature decreases, and then it is sent back into the refrigerator compartment 110 and the variable temperature compartment 120 by the first fan 150. This cycle continues, thus achieving the effect of air-cooled refrigeration. Specifically, a refrigeration path 600 is formed along the direction of the airflow towards the variable temperature compartment 120. The cold storage device 400 is located in this refrigeration path 600, and during the refrigeration process, the cold storage device 400 can accumulate cooling capacity.

[0027] During the defrosting process, the refrigeration system stops cooling, the first evaporator 140 stops generating cold energy, and the first fan 150 rotates to generate airflow. At this time, the temperature inside the refrigerator compartment 110 gradually rises. The first fan 150 carries the hot air inside the refrigerator compartment 110 into the air duct structure 130. The hot air exchanges heat with the first evaporator 140 inside the air duct structure 130, causing the frost on the first evaporator 140 to gradually melt, thus achieving defrosting. During this process, the cold storage device 400 releases cold energy, thereby maintaining the temperature inside the variable temperature compartment 120 at a lower level, reducing the impact of hot air on the variable temperature compartment 120, and improving the preservation effect of the variable temperature compartment 120.

[0028] It should be noted that the temperature of the variable temperature compartment 120 is generally below 0℃, while the temperature of the cold storage compartment 110 is generally above 2℃. The variable temperature compartment 120 has higher requirements for low temperature than the cold storage compartment 110. Placing the cold storage device 400 in the variable temperature compartment 120 helps the variable temperature compartment 120 maintain a low temperature and ensure the preservation effect of the food.

[0029] In some embodiments, the cold storage device 400 contains a cold storage agent. During the refrigeration process, the cold storage agent accumulates cold energy and transforms into a low-temperature state. During the defrosting process, the cold storage device 400 releases the cold energy. The cold storage agent can be water, brine, or other materials. The cold storage agent freezes when the temperature is too low. The freezing point temperature range of the cold storage agent is 0°C to -3°C, slightly higher than the temperature control temperature of the variable temperature compartment 120, ensuring that the cold storage agent can be completely frozen during the cooling process of the variable temperature compartment 120. It should be noted that if the freezing point temperature of the cold storage agent is too low, the variable temperature compartment 120 needs to allocate a large amount of cold energy to the cold storage device 400 to maintain the freezing of the cold storage agent, affecting the temperature control of the refrigeration. If the freezing point temperature of the cold storage agent is too high, the cold storage agent will not accumulate enough cold energy, and the effect of inhibiting the temperature rise of the variable temperature compartment 120 during the defrosting process will not be obvious.

[0030] Specifically, refer to Figure 2As shown, a heat exchange chamber 131 is formed inside the air duct structure 130. The first evaporator 140 and the first fan 150 are both located within the heat exchange chamber 131. The heat exchange chamber 131 communicates with the refrigerator compartment 110 and the variable temperature compartment 120. The air duct structure 130 also has a first channel 132 and a second channel 133 communicating with the heat exchange chamber 131. The heat exchange chamber 131 communicates with the refrigerator compartment 110 through the first channel 132 and with the variable temperature compartment 120 through the second channel 133. A first damper 136 is provided in the first channel 132 for opening or closing the first channel 132. A second damper 137 is provided in the second channel 133 for opening or closing the second channel 133. (Refer to...) Figure 3 As shown, the air duct structure 130 is provided with a foam component 135, which covers the back of the air duct structure 130. The first channel 132 and the second channel 133 are defined by the foam component 135 and the air duct structure 130. The foam component 135 has an air inlet for the first fan 150 to draw air in. The bottom of the air duct structure 130 is also provided with a return air inlet 134, which connects the heat exchange chamber 131 and the variable temperature chamber 120. The return air inlet 134 is located at the bottom of the cold storage chamber 110.

[0031] Reference Figure 2 As indicated by the arrow, when the first fan 150 rotates, it drives a portion of the airflow through the first channel 132 into the refrigerator compartment 110. The fan also drives a portion of the airflow through the second channel 133 into the variable temperature compartment 120, thus supplying air to the first storage container 200. The airflow within the refrigerator compartment 110 is returned to the heat exchange chamber 131 via the return air inlet 134 at the bottom, where it exchanges heat with the first evaporator 140. This embodiment concentrates the return air inlet 134 at the bottom of the duct structure 130 to achieve air return, simplifying the structure of the duct structure 130, reducing its manufacturing difficulty, and minimizing its footprint.

[0032] In some other embodiments, the variable temperature chamber 120 and the cold storage chamber 110 can also be configured as two independent cavities, with the cold storage chamber 110 located above the variable temperature chamber 120. The air duct structure 130 can be provided with multiple return air vents 134. A portion of the return air vents 134 connect the heat exchange chamber 131 and the variable temperature chamber 120, while another portion of the return air vents 134 connect the heat exchange chamber 131 and the cold storage chamber 110. The airflow in the cold storage chamber 110 and the variable temperature chamber 120 returns to the heat exchange chamber 131 through their respective return air vents 134. The variable temperature chamber 120 and the cold storage chamber 110 do not affect each other.

[0033] Reference Figure 3 and Figure 4As shown, in some embodiments, the first storage container 200 is configured as a drawer, and only one first storage container 200 is arranged in the variable temperature chamber 120, thus forming a single drawer structure. The refrigeration equipment 1000 also includes an air guide 500, which is located in the variable temperature chamber 120 and above the first storage container 200. The air guide 500 is provided with a first air guide duct 510, which is located above the first storage container 200. The air inlet end of the first air guide duct 510 is connected to the second channel 133, so that the first air guide duct 510 is connected to the heat exchange chamber 131. The first air guide duct 510 is provided with a first air outlet 511, which can be set downward so that the first air outlet 511 faces the first storage container 200. The cold storage device 400 is arranged in the first air guide duct 510, so that the cold storage device 400 is located above the first storage container 200.

[0034] like Figure 3 and Figure 4 As indicated by the dotted arrow, during the cooling process, the first fan 150 drives the cold airflow from the heat exchange chamber 131 into the second channel 133. Then, the cold airflow flows through the second channel 133 into the first air duct 510. The cold airflow in the first air duct 510 passes through the cold storage device 400, causing the cold storage device 400 to accumulate cold energy. There is a gap between the cold storage device 400 and the inner wall of the first air duct 510 to allow for airflow. Finally, the cold airflow in the first air duct 510 flows out from the first air outlet 511 and blows towards the first storage container. 200, thereby keeping the food in the first storage container 200 fresh. It should be noted that the first air guide duct 510 extends in the front-to-back direction. The first air guide duct 510 mainly guides the cold air flow located at the rear of the first storage container 200 to the front of the first storage container 200. The cold air flow that flows out of the first air outlet 511 then flows from the front of the first storage container 200 to the rear of the first storage container 200, and finally flows back to the heat exchange chamber 131 from the return air vent 134 at the rear of the first storage container 200. The cooling effect is good.

[0035] During the defrosting process, the cold storage device 400 in the first air duct 510 releases cold energy. Since the distance between the first air duct 510 and the first storage container 200 is short, the cold airflow near the cold storage device 400 can quickly enter the first storage container 200, which can improve the overall utilization efficiency of the cold storage device 400.

[0036] like Figure 3As shown, in some embodiments, there are multiple first air outlets 511, and the multiple first air outlets 511 are arranged at intervals along the length of the first air duct 510. This arrangement allows the first air outlets 511 to evenly cover all parts of the second storage container 300, and can evenly supply air to the first storage container 200 without causing local overfreezing.

[0037] like Figure 3 and Figure 4 As shown, in some embodiments, the refrigeration device 1000 further includes a second fan 160, which is used to transport the cold energy stored in the cold storage device 400 in the first air duct 510 to the first storage container 200. Specifically, the second fan 160 is located at the top of the first storage container 200. The second fan 160 can be installed in the first air duct 510. The second fan 160 is configured as a centrifugal fan, and the air inlet side of the second fan 160 is arranged downwards, so that the air inlet side of the second fan 160 faces the first storage container 200. During the defrosting process, the second fan 160 rotates, and the second fan 160 sends the airflow in the first storage container 200 into the first air guide duct 510. The airflow in the first air guide duct 510 passes through the cold storage device 400 and returns to the first storage container 200 through the first air outlet 511, thereby transferring the cold energy of the cold storage device 400 to the first storage container 200, which is conducive to the rapid release of the cold energy of the cold storage device 400.

[0038] In some embodiments, during the defrosting process, the second fan 160 can be turned on and the second damper 137 can be closed. At this time, the second channel 133 is blocked, and the airflow generated by the first fan 150 will not pass through the second channel 133. The second fan 160 sends the airflow inside the first storage container 200 into the first air duct 510, so that the airflow absorbs the cold energy of the cold storage device 400 and becomes cold airflow. Since the second channel 133 is blocked by the second damper 137, the cold airflow will not pass through the second channel 133. The cold airflow in the first air duct 510 then passes through the first air outlet 51. 1. The cold air flows back into the first storage container 200, that is, the second fan 160 drives the cold air to circulate in the first storage container 200. The second fan 160 can be understood as a circulating fan built into the variable temperature chamber 120. Since the air circulation path of the second fan 160 is relatively short, it can facilitate the rapid transfer of cold energy from the cold storage device 400 to the first storage container 200. Since the cold air circulates in the first storage container 200, the cold air is not easy to flow to other places, and the cold energy of the cold storage device 400 will not be wasted. Overall, the utilization efficiency of the cold storage device 400 can be improved.

[0039] In some other embodiments, the outlet side of the second fan 160 may also be arranged downwards, with the outlet side of the second fan 160 facing the first storage container 200, so that the airflow direction generated by the second fan 160 is the same as the airflow direction in the first air guide duct 510. The second fan 160 can accelerate the airflow and quickly send the cold airflow in the first air guide duct 510 into the first storage container 200, so that the cold airflow is concentrated to deliver air to the food in the first storage container 200.

[0040] In some embodiments, the number of cold storage devices 400 is multiple, with some cold storage devices 400 located at the top of the first storage container 200 and some cold storage devices 400 located at the bottom of the first storage container 200. For example... Figure 5 and Figure 6 As shown, in some embodiments, the first storage container 200 is a single-layer drawer structure. The first storage container 200 includes a drawer shell 220 and a drawer body 230. The drawer body 230 is located inside the drawer shell 220, and the drawer shell 220 surrounds the outside of the drawer body 230. The drawer shell 220 and the drawer body 230 are fixedly connected. When the drawer shell 220 is pulled out, the drawer body 230 is also pulled out simultaneously. A partition channel 240 is formed between the drawer shell 220 and the drawer body 230. The partition channel 240 includes a first section 241 and a second section 242 that are interconnected. The first section 241 is located on the front side of the drawer body 230 and extends along... Extending vertically, the first section 241 is connected to the first air duct 510, and the second section 242 is located at the bottom of the drawer body 230 and is connected to the return air vent 134. A number of cold storage devices 400 are arranged in the first air duct 510, that is, at the top of the drawer body 230, while a number of cold storage devices 400 are arranged in the second section 242 of the partition channel 240, that is, a number of cold storage devices 400 are located at the bottom of the drawer body 230. Multiple cold storage devices 400 cover the drawer body 230 from top to bottom, transferring cold energy to the drawer body 230 at both the top and bottom positions, which can improve the cooling effect.

[0041] Reference Figure 7 and Figure 8As shown, in some embodiments, the refrigeration device 1000 further includes a second storage container 300. Both the first storage container 200 and the second storage container 300 are configured as drawers, forming a layered drawer structure. The second storage container 300 is located inside the variable temperature compartment 120, below the first storage container 200. This can also be understood as the first storage container 200 being located inside the second storage container 300. The first storage container 200 must be pulled out first to reveal it, and then it can be pulled out, thus forming a layered drawer structure. The first air duct 510 is also provided with a second air outlet 512. The second air outlet 512 is located at the front end of the first air duct 510 and is set downward so that the second air outlet 512 faces the second storage container 300. The first storage container 200 is provided with a ventilation section, and the ventilation section is provided with a second air duct 310. The air inlet end of the second air duct 310 faces the second air outlet 512, and the air outlet end of the second air duct 310 faces the second storage container 300.

[0042] like Figure 7 and Figure 8 As indicated by the dotted arrow, during the cooling process, the first fan 150 drives the cold airflow into the first air duct 510. Part of the cold airflow in the first air duct 510 enters the first storage container 200 directly through the first air outlet 511 to cool and preserve the food in the first storage container 200. Meanwhile, part of the cold airflow enters the second air duct 310 through the second air outlet 512. Then, the cold airflow flowing out of the second air duct 310 directly enters the second storage container 300 to cool and preserve the food in the second storage container 300.

[0043] Reference Figure 7 and Figure 8 As shown, a portion of the cold storage devices 400 are arranged within the sealed cavity at the bottom of the first storage container 200. These cold storage devices 400 are not in direct contact with external airflow, thus reducing their space requirements. During the cooling process, the cold energy within the variable temperature chamber 120 can be indirectly transferred to the cold storage devices 400 at the bottom of the first storage container 200. During the defrosting process, because these cold storage devices 400 are relatively close to the first storage container 200, the cold energy released by the cold storage devices 400 is directly transferred to the first storage container 200, allowing the first storage container 200 to maintain a better low temperature.

[0044] In some embodiments, the ventilation section described above can be transferred from the first storage container 200 to the second storage container 300. This can be understood as the second air duct 310 being arranged on the second storage container 300. Alternatively, in other embodiments, both the first storage container 200 and the second storage container 300 are provided with the aforementioned ventilation section. That is, the first storage container 200 is provided with the second air duct 310, and the second storage container 300 is also provided with the second air duct 310. The number of second air ducts 310 is two, which can increase the air volume supplied to the second storage container 300 and improve the air supply effect.

[0045] It should be noted that it is possible to Figure 7 Based on the previous embodiment, improvements were made to deliver a portion of the airflow within the second air duct 310 to the cold storage device 400 at the bottom of the first storage container 200, thereby fully utilizing the cooling capacity of the cold airflow. Specifically, refer to... Figure 9 and Figure 10 As shown, the ventilation section is provided on the first storage container 200, that is, the second air guide duct 310 is formed in the first storage container 200. The second air guide duct 310 includes an air guide section 311 and an air supply section 312 that are interconnected. The air guide section 311 is located at the front of the first storage container 200 and is connected to the first air guide duct 510. The air supply section 312 is located at the bottom of the first storage container 200. The bottom of the air supply section 312 is provided with a third air outlet 3121. The third air outlet 3121 is arranged downward so that it faces the second storage container 300. The third air outlet 3121 connects the inner cavity of the air supply section 312 with the inner cavity of the second storage container 300. A number of cold storage devices 400 are arranged in the air supply section 312.

[0046] like Figure 9 and Figure 10 As indicated by the dotted arrow, during the refrigeration process, the cold airflow from the first air duct 510 passes through the air guide section 311 and the air supply section 312 in sequence. When the cold airflow passes through the air supply section 312, it encounters the cold storage device 400 inside the air supply section 312, allowing the cold storage device 400 to accumulate cold energy, making full use of the cold airflow's cold energy and improving cold storage efficiency. Then, the cold airflow enters the second storage container 300 through the third air outlet 3121 of the air supply section 312 to reduce the freshness of the food in the second storage container 300.

[0047] During the defrosting process, the airflow in the first air duct 510 absorbs the cold energy from the cold storage device 400 located at the top of the first storage container 200, thereby cooling and preserving the first storage container 200. The airflow in the air supply section 312 absorbs the cold energy from the cold storage device 400 located at the bottom of the first storage container 200, thereby cooling and preserving the second storage container 300. The cold energy distribution is relatively uniform, which is beneficial for keeping the first storage container 200 and the second storage container 300 at a low temperature simultaneously.

[0048] Reference Figure 9 and Figure 10 As shown, in some embodiments, there are multiple third air outlets 3121 at the bottom of the air supply section 312. The multiple third air outlets 3121 are arranged at intervals along the length of the air supply section 312. This arrangement allows the third air outlets 3121 to evenly cover all parts of the second storage container 300, resulting in a more uniform air supply effect and preventing local overfreezing.

[0049] In some other embodiments, the cold storage device 400 can be arranged inside or outside the first storage container 200, or it can be set on the inner wall or outer wall of the first storage container 200. This can shorten the distance between the cold storage device 400 and the first storage container 200. During the defrosting process, the cold energy released by the cold storage device 400 can be quickly transferred to the first storage container 200, resulting in faster and better heat transfer efficiency and a suitable saving of the amount of cold storage agent used.

[0050] Reference Figure 11 As shown, in some embodiments, an air distribution port 250 can be opened at the bottom of the inner wall of the first storage container 200. The air distribution port 250 connects the inner cavity of the first storage container 200 with the inner cavity of the air supply section 312. In some embodiments, multiple air distribution ports 250 can be set, and the positions of the multiple air distribution ports 250 can correspond to the positions of multiple cold storage devices 400. During the cooling process, a portion of the cold airflow in the first storage container 200 can enter the air supply section 312 through the air distribution port 250, thereby exchanging heat with the cold storage device 400 in the air supply section 312. This can be understood as adding an extra air path, allowing the cold airflow to pass through the cold storage device 400 in the air supply section 312, accelerating the cold storage of the cold storage device 400 in the air supply section 312, which is beneficial for the cold storage device 400 in the air supply section 312 to release more cold energy during the subsequent defrosting process.

[0051] It should be noted that during the refrigeration process, since the cold airflow in the first air duct 510 passes through the cold storage device 400 before refrigerating the food in the first storage container 200, the cold storage device 400 absorbs some of the cold energy, which will have a certain impact on the refrigeration efficiency.

[0052] Based on this, such as Figure 12 and Figure 13 As shown, in some embodiments, the cooling path 600 includes a first path 610 and a second path 620. The first path 610 is located below the second path 620. A portion of the cold storage devices 400 are arranged in the first path 610, while no cold storage devices 400 are arranged in the second path 620. A portion of the airflow exiting the second channel 133 flows along the first path 610 into the first storage container 200, and a portion flows along the second path 620 into the first storage container 200.

[0053] like Figure 12 and Figure 13 As indicated by the dotted arrows, during the refrigeration process, the portion of the cold air flowing along the first path 610 encounters the cold storage device 400, causing it to accumulate cold energy. The portion of the cold air flowing along the second path 620 does not encounter the cold storage device 400, therefore its cold energy remains constant. The cold air flowing along the second path 620 effectively transfers cold energy to the first storage container 200. This means that the cold storage device 400's accumulation of cold energy and the cooling and freezing of the food occur simultaneously, thus improving refrigeration efficiency. This air distribution design divides the refrigeration path 600 into two paths, achieving airflow diversion and maximizing both cold energy accumulation and the cooling effect on the food. This embodiment can be understood as an air distribution design for a single drawer.

[0054] During the defrosting process, the airflow in the first path 610 passes through the cold storage device 400 and absorbs the cold energy released by the cold storage device 400, turning into cold airflow. The cold airflow enters the first storage container 200, maintaining the food in the first storage container 200 at a low temperature and improving the preservation effect.

[0055] It is understandable that, such as Figure 12 and Figure 13 As shown, the first path 610 and the second path 620 are formed within the air guide 500. The first air guide 510 can be understood as the first path 610 mentioned above. The air guide 500 is provided with a third air guide 530, which is located above the first air guide 510. The third air guide 530 is provided with a fourth air outlet 531, which is connected to the first air guide 510. The third air guide 530 can be understood as the second path 620 mentioned above. The cold storage device 400 is only arranged within the first air guide 510 and is not arranged within the third air guide 530.

[0056] like Figure 14As shown, the air duct structure 130 is provided with a first air outlet 138. The airflow in the second channel 133 flows out from the first air outlet 138. The first air outlet 138 is connected to the first air guide duct 510 and the third air guide duct 530. The first air outlet 138 is provided with a first partition 1381. The first partition 1381 divides the inner cavity of the first air outlet 138 into two flow channels. The two flow channels are respectively connected to the first air guide duct 510 and the third air guide duct 530. By setting the first air outlet 138, the cold airflow flowing out from the second channel 133 can be diverted, so that part of the cold airflow enters the first air guide duct 510 and the other part of the cold airflow enters the third air guide duct 530, thereby dividing the cooling path 600 into the first path 610 and the second path 620.

[0057] like Figure 12 As shown, when the refrigeration equipment 1000 also includes a second storage container 300, the first storage container 200 and the second storage container 300 form a layered drawer structure. Based on the above-mentioned air distribution design for the first storage container 200, the cold airflow flowing into the second storage container 300 can also be designed to distribute the airflow, achieving a similar flow distribution effect to the above embodiment.

[0058] Specifically, such as Figure 12 and Figure 13 As shown, the refrigeration path 600 also includes a third path 630 and a fourth path 640. The third path 630 is located above the fourth path 640. A portion of the cold storage devices 400 are arranged in the third path 630, while the cold storage devices 400 are not arranged in the fourth path 640.

[0059] During the refrigeration process, refer to Figure 12 and Figure 13 As indicated by the dotted arrows, some of the cold airflow flows along the third path 630, while some flows along the fourth path 640. When the cold airflow flows along the third path 630, it encounters the cold storage device 400, causing it to accumulate cold energy. When the cold airflow flows along the third path 630, it does not encounter the cold storage device 400, therefore, the cold energy of this portion of the airflow does not decrease. The cold airflow on the fourth path 640 can effectively transfer the cold energy to the second storage container 300, thereby improving refrigeration efficiency. It can be understood that the accumulation of cold energy in the cold storage device 400 and the cooling and freezing of food occur simultaneously. Through this air distribution design, the refrigeration path 600 is divided into four paths, achieving the diversion of the cold airflow and maximizing both the accumulation of cold energy and the cooling effect on the food. This embodiment can be understood as an air distribution design for layered drawers, which can improve refrigeration efficiency.

[0060] During the defrosting process, since the cold storage device 400 is located at the bottom of the first storage container 200 and is relatively close to the first storage container 200, the cold energy released by the cold storage device 400 can be quickly transferred to the first storage container 200, which is conducive to maintaining the low temperature of the food in the first storage container 200 and improving the preservation effect. At the same time, the airflow in the third path 630 passes through the cold storage device 400 and absorbs the cold energy released by the cold storage device 400, turning into a cold airflow. Then, the cold airflow enters the second storage container 300, maintaining the low temperature of the food in the second storage container 300 and improving the preservation effect.

[0061] Reference Figure 13 and Figure 15 As shown, in some embodiments, there are multiple fourth air outlets 531, and the positions of the multiple fourth air outlets 531 correspond one-to-one with the positions of the multiple first air outlets 511. During the cooling process, some of the cold airflow in the third air duct 530 can flow directly into the first air outlet 511 through the fourth air outlet 531, and then flow into the first storage container 200 from the first air outlet 511. During this process, the cold airflow does not come into contact with the cold storage device 400, and almost no cooling capacity is lost. The cold airflow flows directly into the first storage container 200 through the fourth air outlet 531 and the first air outlet 511, with a shorter flow path, which is conducive to the rapid entry of the cold airflow into the first storage container 200 and improves the cooling efficiency.

[0062] Understandably, referring to Figure 12 and Figure 13 As shown, the third path 630 is formed at the bottom of the first storage container 200. The bottom of the first storage container 200 is provided with a fourth air duct 210. A number of cold storage devices 400 are arranged in the fourth air duct 210. The fourth air duct 210 can be understood as the aforementioned third path 630. The cold storage devices 400 are fixed to the upper side of the inner wall of the fourth air duct 210. The lower side of the inner wall of the fourth air duct 210 is provided with a fifth air outlet 211. The fifth air outlet 211 is set downward so that it faces the second storage container 300.

[0063] Reference Figure 12 and Figure 16As shown, the air duct structure 130 is provided with a second air outlet 139. Part of the airflow in the second channel 133 flows out from the second air outlet 139. The second air outlet 139 is connected to the fourth air guide duct 210. A second partition 1391 is provided inside the second air outlet 139, which divides the inner cavity of the second air outlet 139 into two flow channels. One flow channel is connected to the fourth air guide duct 210, and the other flow channel is connected to the inner cavity of the second storage container 300. By setting the second air outlet 139, the cold airflow in the air duct structure 130 is diverted, so that part of the cold airflow enters the fourth air guide duct 210, and part of the cold airflow directly enters the second storage container 300, thereby dividing the cooling path 600 into a third path 630 and a fourth path 640.

[0064] Reference Figure 16 As shown, in some embodiments, the air guide 500 includes a first air duct cover 540, which is a box structure with a grid structure to divide it into multiple mounting cavities. Multiple cold storage devices 400 are placed in these cavities, spaced apart to create gaps for airflow. Specifically, a first air outlet 511 is located at the bottom of the first air duct cover 540, connecting the mounting cavity to the outside of the cover. The size of the cold storage devices 400 can be adapted to ensure that they do not obstruct the first air outlet 511.

[0065] Reference Figure 15 As shown, in some embodiments, the air guide 500 further includes a second air duct cover 550, which is located above the first air duct cover 540. The first air duct cover 540 and the second air duct cover 550 define the first air guide duct 510 of the above embodiment. The third air guide duct 530 is located above the second air duct cover 550, and the fourth air outlet 531 is opened on the second air duct cover 550.

[0066] Reference Figure 17 As shown, in some other embodiments, the cold storage device 400 can be configured as an integrated structure, with the cold storage device 400 being a separate piece. The cold storage device 400 is directly installed on the first air duct cover plate 540 as a whole. The cold storage device 400 is provided with a clearance hole 410, the position of which corresponds to the position of the first air outlet 511, for allowing airflow to pass through the first air outlet 511.

[0067] In some embodiments, the cabinet 100 is further provided with a freezer compartment, and the refrigeration device 1000 can be configured as a dual-system refrigerator. The refrigeration device 1000 has two independent refrigeration systems, specifically a first refrigeration system and a second refrigeration system. The first evaporator 140 is the refrigeration element in the first refrigeration system, which provides cooling capacity to the refrigerator compartment 110 and the variable temperature compartment 120 through the first evaporator 140. The second refrigeration system includes a second evaporator, which provides cooling capacity to the freezer compartment through the second evaporator. Because the two refrigeration systems are independent of each other, the dual-system refrigerator has better odor prevention and refrigeration and humidity control effects. In other embodiments, the refrigeration device 1000 can also be configured as a single-system refrigerator, with only one refrigeration system. The first evaporator 140 is the refrigeration element in this refrigeration system, which provides cooling capacity to the refrigerator compartment 110, the variable temperature compartment 120, and the freezer compartment through the first evaporator 140.

[0068] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A refrigeration device, characterized in that, include: The container is equipped with a cold storage compartment and a variable temperature compartment; First evaporator; The first fan is used to transfer the cooling capacity of the first evaporator to the cold storage compartment and the variable temperature compartment. The first fan generates airflow to form a cooling path into the variable temperature compartment. The first storage container is located inside the variable temperature chamber; A cold storage device is installed inside the variable temperature chamber and located in the refrigeration path.

2. The refrigeration equipment according to claim 1, characterized in that, The housing is provided with a heat exchange chamber, and the first fan and the first evaporator are located in the heat exchange chamber. The refrigeration equipment includes an air guide located in the variable temperature chamber. The air guide is located above the first storage container. The air guide is provided with a first air duct communicating with the heat exchange chamber. The first air duct is provided with a first air outlet for supplying air to the first storage container. The cold storage device is provided in the first air duct.

3. The refrigeration equipment according to claim 1 or 2, characterized in that, The first storage container is equipped with the cold storage device at its bottom.

4. The refrigeration equipment according to claim 2, characterized in that, The refrigeration equipment includes a second storage container located in the variable temperature compartment, the second storage container being located below the first storage container. The first air duct is provided with a second air outlet, the second air outlet being used to supply air to the second storage container. The first storage container and / or the second storage container are provided with a ventilation section, the ventilation section being provided with a second air duct, the air inlet of the second air duct facing the second air outlet, and the air outlet facing the second storage container.

5. The refrigeration equipment according to claim 4, characterized in that, The second air duct includes an air supply section located at the bottom of the first storage container, and the cold storage device is provided in the air supply section.

6. The refrigeration equipment according to claim 5, characterized in that, The bottom of the first storage container is provided with an air distribution port, through which at least part of the airflow in the first storage container enters the air supply section.

7. The refrigeration equipment according to claim 1, characterized in that, The refrigeration path includes a first path with the cold storage device and a second path without the cold storage device. Part of the airflow generated by the first fan enters the first storage container through the first path, and part of it enters the first storage container through the second path. The first path is located below the second path.

8. The refrigeration equipment according to claim 7, characterized in that, The refrigeration equipment includes a second storage container located in the variable temperature chamber, the second storage container being located below the first storage container, the bottom of the first storage container being provided with the cold storage device, the refrigeration path including a third path with the cold storage device and a fourth path without the cold storage device, part of the airflow generated by the first fan enters the second storage container through the third path and part of it enters the second storage container through the fourth path, the third path being located above the fourth path.

9. The refrigeration equipment according to claim 1, characterized in that, The cold storage device contains a cold storage agent, and the freezing point of the cold storage agent is in the range of 0°C to -3°C.

10. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment includes a second fan, which is used to transport the cold energy stored in the cold storage device to the first storage container.

11. The refrigeration equipment according to claim 1, characterized in that, The number of cold storage devices is multiple, and a gap is formed between two adjacent cold storage devices to allow the airflow generated by the first fan to pass through.

12. The refrigeration equipment according to claim 1, characterized in that, The cold storage device is provided with a clearance hole for the airflow generated by the first fan to pass through.

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