Dehumidifying device and refrigerator

Abstract

The utility model discloses a dehumidifying device and a refrigerator. The dehumidifying device comprises a bearing shell, a fan assembly and a switch assembly. The bearing shell is provided with an air inlet, an air outlet, a first containing cavity and a ventilation part. The first containing cavity is used for storing moisture absorbents. The air inlet and the air outlet are formed in the two ends of the first containing cavity in a communicating mode so that a water-air channel can be formed among the air inlet, the first containing cavity and the air outlet. And the ventilation part is communicated with the first accommodating cavity. The fan assembly is opposite to the air inlet. The switch assembly is movably matched with the ventilation part. When the switch assembly is in the closed state, the water and air channel and the refrigeration space in the refrigeration equipment are arranged in a sealed mode. When the switch assembly is in an open state, the water and air channel communicates with the refrigeration space through the ventilation part. According to the dehumidifying device, cyclic utilization of the moisture absorbent is facilitated, so that the moisture absorbent does not need to be frequently replaced back and forth, use is convenient, and the replacement cost of the moisture absorbent is saved.

Description

Technical Field

[0001] This application relates to the technical field of dehumidification, and particularly to a dehumidifying device and a refrigerator. Background Art

[0002] Currently, almost every household will purchase a batch of refrigeration equipment, such as refrigerators or freezers, etc., to preserve food materials. For some special food materials such as beans, nuts, or medicinal materials, etc., while requiring low-temperature storage conditions, a relatively dry storage environment is also needed to ensure the taste of the food materials. However, during the storage process of refrigeration equipment such as refrigerators, due to the change in the temperature difference between the equipment itself and the indoor and outdoor food materials, it will inevitably affect the moisture absorption of the food materials and have an impact on food preservation.

[0003] In related technologies, many manufacturers have begun to explore placing dehumidifying agents in refrigeration equipment such as refrigerators to ensure a low-temperature and dry storage environment inside. However, the use of dehumidifying agents in related technologies is still limited to single-use, and consumers or maintenance personnel need to regularly replace the dehumidifying agent to ensure the normal use of the dehumidifying agent, which is not conducive to the recycling of the dehumidifying agent, increases the maintenance cost, and is not conducive to enhancing the market competitiveness of the product. Summary of the Invention

[0004] This application provides a dehumidifying device and a refrigerator. The dehumidifying device in this application is conducive to realizing the recycling of the moisture absorbent, so there is no need to frequently replace the moisture absorbent back and forth, which is convenient to use and saves the replacement cost of the moisture absorbent.

[0005] The technical solution is as follows:

[0006] According to the first aspect of the embodiments of this application, a dehumidifying device is provided, which is applied to a refrigeration device and includes a bearing housing, a fan assembly, and a switch assembly.

[0007] The bearing housing is provided with an air inlet, an air outlet, a first accommodation cavity, and a breathable part. The first accommodation cavity is used for storing the moisture absorbent. The air inlet and the air outlet are communicated and arranged at both ends of the first accommodation cavity, so that a water vapor channel is formed by communicating the air inlet, the first accommodation cavity, and the air outlet. The breathable part is communicated and arranged with the first accommodation cavity.

[0008] The fan assembly is arranged opposite to the air inlet.

[0009] The switch assembly is movably matched with the breathable part. The switch assembly includes a closed state in which it is in limit sealing cooperation with the breathable part and an open state in which it is at least partially spaced from the breathable part.

[0010] When the switch assembly is in the closed state, the water vapor channel is hermetically arranged with the refrigeration space in the refrigeration device. When the switch assembly is in the open state, the water vapor channel is communicated with the refrigeration space through the breathable part.

[0011] The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

[0012] When dehumidification is required, the desiccant is stored in the first accommodation cavity. Through the arrangement of the air-permeable part, the first accommodation cavity, the water vapor channel, and the refrigeration space are connected, so that the moisture in the refrigeration space is absorbed by the desiccant to realize the regulation of the humidity in the refrigeration space. As the dehumidification time increases, the desiccant gradually approaches the water absorption saturation limit and it is difficult to continue to maintain the strong moisture absorption function for the refrigeration space. Therefore, the desiccant can be subjected to a regeneration cycle process. Specifically, by inserting the switch assembly into the air-permeable part, the refrigeration space is no longer connected to the water vapor channel and the first accommodation cavity. At this time, the fan assembly is turned on, and the desiccant can be dried, so that part of the moisture in the desiccant can be discharged from the air outlet along the water vapor channel, thereby realizing the drying of the desiccant, reducing the water absorption rate of the desiccant, and thus realizing the cyclic regeneration of the desiccant. When the refrigeration space needs to be dehumidified again, through the movable cooperation between the switch assembly and the air-permeable part, the connection between the refrigeration space and the first accommodation cavity can be continued through the air-permeable part, and the desiccant can continue to absorb moisture. In this way, this setting realizes the cyclic reuse of the desiccant, thereby reducing the replacement times and lowering the replacement cost.

[0013] The technical solutions will be further described below:

[0014] In one embodiment, the switch assembly includes at least one movable rod and a flexible seal fixed to the movable rod. The flexible seal includes a sealed state in which it is hermetically covered with the air-permeable part and a connected state in which it is at least partially separated from the air-permeable part. The movable rod is movably arranged on the carrier housing so that the movable rod drives the seal to move relative to the carrier housing, causing the flexible seal to switch between the sealed state and the connected state.

[0015] In one embodiment, the switch assembly includes at least two movable rods. Among the at least two movable rods, there are a first movable rod and a second movable rod. The first movable rod and the second movable rod are arranged at intervals along the length direction of the water vapor channel. Both sides of the flexible seal are fixed to the first movable rod and the second movable rod respectively. The first movable rod and the second movable rod are telescopically movable in the carrier housing to drive the flexible seal to move along the height direction or the thickness direction of the carrier housing, causing the flexible seal to switch between the sealed state and the connected state.

[0016] In one embodiment, the dehumidification device further includes a heating assembly. The heating assembly is fixed to the carrier housing. The heating assembly is used to heat the first accommodation cavity so that at least part of the moisture in the desiccant is discharged through the water vapor channel.

[0017] In one embodiment, the switch assembly further includes a shape memory alloy elastic member and a seal fixed to the shape memory alloy elastic member. The shape memory alloy elastic member expands and contracts on the carrying housing to drive the seal to expand and contract on the carrying housing. The seal includes a sealed state in which it is hermetically sealed with the ventilation portion and a communication state in which it is at least partially separated from the ventilation portion. The heating assembly includes at least a first heating state in which the first accommodation chamber is heated to a first temperature and a second heating state in which the first accommodation chamber is heated to a second temperature.

[0018] Wherein, when the heating assembly is in the first heating state, the shape memory alloy elastic member is in a first stretched state, so that the shape memory alloy elastic member drives the seal to move to the sealed state. When the heating assembly is in the second heating state, the shape memory alloy elastic member is in a second stretched state, so that the shape memory alloy elastic member resets to drive the seal to reset to the communication state. The first temperature is higher than the second temperature. The elongation of the first stretched state is greater than the elongation of the second stretched state.

[0019] In one embodiment, the dehumidifying device further includes a controller and a humidity sensing assembly. The humidity sensing assembly is used to detect the humidity information of the refrigerated space. The controller is communicatively connected to the humidity sensing assembly, the heating assembly, and the fan assembly, and the controller is used to adjust the heating assembly and the fan assembly according to the humidity information, so that the heating assembly switches between the first heating state and the second heating state.

[0020] And / or, the seal is a flexible seal. The switch assembly further includes a rotating shaft member. The rotating shaft member is fixed to the carrying housing. The flexible seal is wound around the rotating shaft member. The rotating shaft member is used to wind and release or wind and store the flexible seal, so that the flexible seal switches between the sealed state and the communication state.

[0021] In one embodiment, the dehumidifying device further includes a heat insulation layer. The heat insulation layer is disposed on the flexible seal, so that: when the switch assembly is in the closed state, the refrigerated space is hermetically insulated from the ventilation portion and the first accommodation chamber through the heat insulation layer and the flexible seal.

[0022] And / or, the moisture absorbent includes an oxygen-controlled moisture retention film. The oxygen-controlled moisture retention film is attached to the ventilation portion. The oxygen-controlled moisture retention film includes an inhibition state and a moisture absorption state. When the refrigerated space is at a first humidity, the oxygen-controlled moisture retention film is in the inhibition state to inhibit the water vapor in the refrigerated space from entering the first accommodation chamber. When the refrigerated space is at a second humidity, the oxygen-controlled moisture retention film is in the moisture absorption state to increase the entry of water vapor in the refrigerated space into the first accommodation chamber. Wherein, the first humidity is less than the second humidity.

[0023] In one embodiment, the flexible seal includes an aerogel film. The aerogel film is fixed to the movable rod, and the movable rod drives the aerogel film to move relative to the carrying housing, so that the aerogel film switches between the sealed state and the communication state.

[0024] According to a second aspect of embodiments of the present application, a refrigerator is provided, including a refrigerator body and the dehumidifying device in the above embodiments. A refrigerating space is provided inside the refrigerator body. The dehumidifying device is abutted and fixed to the inner side wall of the refrigerator body.

[0025] The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

[0026] In this way, through the arrangement of the dehumidifying device in the above embodiments, dehumidification treatment of the refrigerating space inside the refrigerator body and the recycling of the moisture absorbent can be achieved. Further, by abutting and fixing the dehumidifying device to the inner side wall of the refrigerator body, the dehumidifying device will not overly interfere with the storage space of the refrigerating space, ensuring the storage performance of the refrigerating space.

[0027] The technical solutions are further described below:

[0028] In one embodiment, the refrigerator includes at least two dehumidifying devices. Among them, at least two dehumidifying devices include a first dehumidifying device and a second dehumidifying device. The first dehumidifying device and the second dehumidifying device are respectively installed on the inner side walls of opposite sides of the refrigerator body.

[0029] And / or, the refrigerator body further includes a drawer body. The drawer body is movably arranged in the refrigerating space. The drawer body is provided with a second accommodating cavity. The second accommodating cavity is communicated with the first accommodating cavity through a ventilation part. An air outlet is arranged on the drawer body, and the moisture of the moisture absorbent is discharged out of the first accommodating cavity and the second accommodating cavity through the air outlet.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application and used together with the specification to explain the principles of the present application.

[0032] Figure 1 It is a schematic structural diagram of the dehumidifying device shown in one embodiment.

[0033] Figure 2 For Figure 1 It is a schematic structural diagram of the dehumidifying device shown in one perspective in

[0034] Figure 3 For Figure 2 It is a rear view of the dehumidifying device shown in

[0035] Figure 4 It is a schematic structural diagram of the refrigerator shown in one embodiment.

[0036] Figure 5For Figure 4 Schematic diagram of the cooperation structure between the dehumidifying device and the drawer body shown in

[0037] Figure 6 For Figure 5 Top view of the cooperation between the dehumidifying device and the drawer body shown in

[0038] Figure 7 For Figure 6 Schematic diagram of the cooperation structure between the switch assembly and the carrier housing shown in

[0039] Figure 8 For Figure 7 Schematic diagram of the structure of the switch assembly shown in

[0040] Figure 9 For Figure 8 Front view of the switch assembly shown in

[0041] Figure 10 Schematic diagram of the cooperation structure between the controller and other components shown in an embodiment. Description of the drawings:

[0043] 10, refrigerator; 100, dehumidifying device; 101, first dehumidifying device; 102, second dehumidifying device; 110, carrier housing; 111, air inlet; 112, air outlet; 113, first accommodation cavity; 114, reinforcing rib; 120, fan assembly; 130, breathable part; 131, hollowed-out slot; 140, switch assembly; 141, movable rod; 1411, first movable rod; 1412, second movable rod; 142, flexible seal; 143, shape memory alloy elastic member; 1431, first shape memory alloy elastic member; 1432, second shape memory alloy elastic member; 144, rotating shaft member; 150, heating assembly; 160, controller; 170, humidity sensor; 200, refrigerator body; 210, drawer body; 211, second accommodation cavity; length direction X; thickness direction Y; height direction Z. Detailed implementation manners

[0044] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0045] Currently, refrigeration equipment such as refrigerators is provided with multiple storage spaces to store different food ingredients, such as a dry area, a humid area, etc. The dry area can be used to store food ingredients such as beans, nuts, or medicinal materials to provide a low-temperature and dry storage environment. The humid area can be used to store fruits and vegetables and other food ingredients to provide a storage environment with a relatively high humidity and low temperature. However, whether it is the dry area or the humid area, regular dehumidification treatment is required. On the one hand, the dry area needs to be dehumidified to ensure dryness and the storage quality of the food ingredients. On the other hand, the humidity in the humid area is generally relatively high, and some even approach the dew condensation humidity. Also, because the space is airtight and moisture cannot be discharged, condensation is likely to occur on the inner wall of the housing, which is prone to breeding bacteria and causing mildew and deterioration.

[0046] Relevant manufacturers generally place corresponding dehumidifying agents in each area to absorb moisture to ensure a relatively dry storage environment. However, in related technologies, the use of dehumidifying agents still maintains a disposable use method, which requires manual on-site regular replacement, is inconvenient to operate, and increases the maintenance cost.

[0047] Based on this, as shown in Figures 1 to 3 the present application provides a dehumidifying device 100, which is applied to refrigeration equipment. The dehumidifying device 100 includes a carrier housing 110, a fan assembly 120, a ventilation part 130 provided on the carrier housing, and a switch assembly 140.

[0048] Specifically, the carrier housing 110 is provided with an air inlet 111, an air outlet 112, and a first accommodation cavity 113. The first accommodation cavity 113 is used to store a dehumidifying agent. The air inlet 111 and the air outlet 112 are communicatively arranged at both ends of the first accommodation cavity 113, so that a water vapor channel is formed through communication among the air inlet 111, the first accommodation cavity 113, and the air outlet 112. The fan assembly 120 is disposed opposite to the air inlet 111. The carrier housing 110 is further provided with a ventilation part 130. The ventilation part 130 is communicatively arranged with the first accommodation cavity 113. The switch assembly 140 is movably engaged with the ventilation part 130. The switch assembly 140 includes a closed state in which it is in limit sealing engagement with the ventilation part 130 and an open state in which it is at least partially spaced apart from the ventilation part 130.

[0049] Among them, when the switch assembly 140 is in the closed state, the water vapor channel is spaced apart from the refrigeration space in the refrigeration equipment. When the switch assembly 140 is in the open state, the water vapor channel is communicated with the refrigeration space through the ventilation part 130.

[0050] The following is a detailed description in combination with the usage method:

[0051] When dehumidification is required, the desiccant is stored in the first accommodation cavity 113. Through the arrangement of the air-permeable part 130, the first accommodation cavity 113, the water-vapor channel and the refrigeration space are connected, so that the moisture in the refrigeration space is absorbed by the desiccant to realize the regulation of the humidity in the refrigeration space. As the dehumidification time increases, the desiccant gradually approaches the water absorption saturation limit and it is difficult to continue to maintain the strong moisture absorption function for the refrigeration space. Therefore, the desiccant can be subjected to a regeneration cycle process. Specifically, by the switch assembly 140 being inserted and limited in the air-permeable part 130, the refrigeration space is no longer connected to the water-vapor channel and the first accommodation cavity 113. At this time, when the fan assembly 120 is turned on, the desiccant can be air-dried, so that part of the moisture in the desiccant can be discharged from the air outlet 112 along the water-vapor channel, thereby realizing the air-drying of the desiccant, reducing the water absorption rate of the desiccant, and thus realizing the cyclic regeneration of the desiccant. When the refrigeration space needs to be dehumidified again, through the movable cooperation between the switch assembly 140 and the air-permeable part 130, the connection between the refrigeration space and the first accommodation cavity 113 can be continued through the air-permeable part 130, and the desiccant can continue to absorb moisture.

[0052] In this way, this arrangement realizes the cyclic reuse of the desiccant, thereby reducing the replacement times and lowering the replacement cost.

[0053] It should be noted that the refrigeration equipment in the above embodiments can be, but is not limited to, the refrigerator 10, and can also be a freezer, a drying machine, etc., which will not be elaborated here.

[0054] For better understanding, the following will be described in detail in combination with an application scenario:

[0055] As Figure 4 shown, the present application provides another refrigerator 10, including a refrigerator body 200 and a dehumidifying device 100. Among them, a refrigeration space is provided in the refrigerator body 200. The dehumidifying device 100 is abutted and fixed on the inner side wall of the refrigerator body 200. In this way, through the arrangement of the dehumidifying device 100 in the above embodiments, the dehumidification treatment of the refrigeration space in the refrigerator body 200 and the cyclic use of the desiccant can be realized. Further, by abutting and fixing the dehumidifying device 100 on the inner side wall of the refrigerator body 200, the dehumidifying device 100 will not overly interfere with the storage space of the refrigeration space, ensuring the storage performance of the refrigeration space.

[0056] It should be noted that when the dehumidifying device 100 cooperates with the refrigeration space of the refrigerator body 200 for dehumidification, the moisture in the desiccant can be discharged outdoors (i.e., outside the refrigerator body 200), or can be discharged to other refrigeration areas, etc. (i.e., inside the refrigerator body 200), and no excessive restrictions will be imposed on the former here.

[0057] In one example, at least a part of the fan assembly 120 is in communication and cooperation with the outside. The fan assembly 120 has a forward rotation state and a reverse rotation state. When the fan assembly 120 is in the forward rotation state, the air inlet direction of the fan assembly 120 is from the air inlet 111 to the air outlet 112, so that the moisture in the desiccant can be air-dried, and a large amount of moisture in the desiccant can be blown out. When the fan assembly 120 is in the reverse rotation state, the air flow direction of the fan assembly 120 is from the air outlet 112 to the air inlet 111, so that the water vapor in the water vapor channel can be extracted, and the dehumidification treatment of the desiccant can be realized.

[0058] In another example, as Figures 5 to 6 shown, the refrigerator body 200 further includes a drawer body 210. The drawer body 210 is movably arranged in the refrigeration space. The drawer body 210 is provided with a second accommodation cavity 211. The second accommodation cavity 211 is communicated with the first accommodation cavity 113 through a ventilation part 130. The air outlet 112 is arranged on the drawer body 210, and the moisture of the desiccant is discharged out of the first accommodation cavity 113 and the second accommodation cavity 211 through the air outlet 112. It can be understood that the drawer body 210 can be used as a specific dry-type refrigeration area. The second accommodation cavity 211 is communicated with the first accommodation cavity 113 through the ventilation part 130, so that the moisture in the second accommodation cavity 211 can be dehumidified by the desiccant in the first accommodation cavity 113 to ensure the appropriate humidity in the second accommodation cavity 211. When the desiccant is saturated, the ventilation part 130 can be closed through the switch assembly 140 to realize the separation of the second accommodation cavity 211 and the first accommodation cavity 113. Then, by opening the air door assembly, the moisture in the desiccant can be blown out, so that the moisture is discharged out of the second accommodation cavity 211 and the first accommodation cavity 113 through the water vapor channel from the air outlet 112, without affecting the storage of the ingredients in the drawer body 210.

[0059] It should be noted that the number of the dehumidifying devices 100 can be one or more, and no excessive limitation is imposed on the number here. In addition, the first accommodation cavities 113 of the first dehumidifying device 101 and the second dehumidifying device 102 can be communicated.

[0060] In some embodiments, the refrigerator 10 includes at least two dehumidifying devices 100. Among them, at least two dehumidifying devices 100 include a first dehumidifying device 101 and a second dehumidifying device 102. The first dehumidifying device 101 and the second dehumidifying device 102 are respectively installed on the inner walls of opposite sides of the refrigerator body 200. In this way, by providing at least two dehumidifying devices 100, the dehumidification efficiency of the refrigerating space can be improved. Further, by distributing and installing the first dehumidifying device 101 and the second dehumidifying device 102 on opposite sides of the refrigerator body 200 (for example: it can be integrally provided with opposite sides of the refrigerator body 200), it is beneficial to achieve uniform moisture absorption and improve the uniformity and quality of moisture absorption.

[0061] In one example, the first dehumidifying device 101 and the second dehumidifying device 102 are distributed and installed on the inner walls of opposite sides of the drawer body 210.

[0062] It should be noted that the movable cooperation between the air-permeable part 130 and the switch component 140 in the above embodiments can be the cooperation between a piston and an air-permeable hole, or the cooperation between a water-absorbing ring and an air-permeable hole, etc., and will not be overly limited here.

[0063] In one embodiment, the air-permeable part 130 includes at least one hollow hole. The hollow hole is provided on the bearing housing 110. The switch component 140 includes at least one piston rod. The piston rod is in one-to-one movable plug-in cooperation with the hollow hole to enable the switch component 140 to switch between an open state and a closed state. It can be understood that through the plug-in cooperation between the piston rod and the hollow hole, the hollow hole switches between a sealed closed state and an open state. In this way, the structure is simple, convenient for design, and beneficial to improving the processing efficiency.

[0064] In some other embodiments, the air-permeable part 130 includes at least one hollow slot hole 131. The hollow slot hole 131 is hollowed out on the bearing housing 110. In this way, the setting of the hollow slot hole 131 can increase the air-permeable area, thereby increasing the gas exchange rate between the refrigerating space and the gas in the first accommodation cavity 113, and thus improving the dehumidification efficiency.

[0065] Combined with any of the above embodiments of the switch component 140, combined with Figures 7 to 9As shown, the switch assembly 140 includes at least one movable rod 141 and a flexible seal 142 fixed to the movable rod 141. The flexible seal 142 includes a sealed state in sealing cooperation with the hollow slot 131 and a communication state at least partially separated from the ventilation part 130 (such as the hollow slot 131). The movable rod 141 is movably arranged on the bearing housing 110 so that the movable rod 141 drives the seal to move, enabling the flexible seal 142 to switch between the sealed state and the communication state. It should be noted that when the flexible seal 142 switches between the communication state and the sealed state, there can be various directions for its movement, such as the length direction X of the water and gas channel, the thickness direction Z of the bearing housing 110, or the height direction Y, etc., which can be selected according to the different installation positions and movement types of the movable rod 141.

[0066] The following will be described in detail with an example:

[0067] Suppose the hollow slot 131 is arranged on the bearing housing 110 along the length direction X of the water and gas channel, and the movable rod 141 drives the flexible seal 142 to move up and down along the height direction of the bearing housing 110, so that the flexible seal 142 can switch between covering and non-covering the ventilation part 130 during the up and down movement, thereby realizing the non-communication and communication switching between the first accommodation chamber 113 and the refrigeration space. The following will be described in combination with a motion scenario: When the moisture absorbent is in a normal moisture absorption state, the flexible seal 142 is separated from the ventilation part 130. At this time, the refrigeration space can communicate with the first accommodation chamber 113 through the ventilation part 130, enabling the moisture in the refrigeration space to enter the first accommodation chamber 113, so that the moisture is absorbed by the moisture absorbent. When the moisture absorbent is in a moisture absorption state approaching saturation, at this time, through the movement of the movable rod 141 on the bearing housing 110, the flexible seal 142 covers the ventilation part 130, and by turning on the fan assembly 120, the gas flow rate in the first accommodation chamber 113 is larger than that in the refrigeration space, so that the air pressure in the first accommodation chamber 113 is smaller than that in the refrigeration space. Due to the difference in air pressure, the flexible seal 142 is sealed and covered on the ventilation part 130, improving the sealing quality of the flexible seal 142 and the ventilation part 130. When the moisture in the moisture absorbent is blown away from the water and gas channel by the fan assembly 120, the fan assembly 120 can be turned off. At this time, the air pressure difference between the first accommodation chamber 113 and the refrigeration space returns to normal, relieving the pressure difference on the flexible seal 142. Then, through the movement of the movable rod 141, the movable rod 141 drives the flexible seal 142 to move away from the ventilation part 130, and the first accommodation chamber 113 and the refrigeration space can continue to communicate.

[0068] To improve the movement stability of the flexible seal 142, in some embodiments, the switch assembly 140 includes at least two movable rods 141. The at least two movable rods 141 include a first movable rod 141 and a second movable rod 141. The first movable rod 141 and the second movable rod 141 are arranged at intervals along the length direction of the water and gas channel. Two sides of the flexible seal 142 are respectively fixed to the first movable rod 141 and the second movable rod 141. The first movable rod 141 and the second movable rod 141 telescopically move in the bearing housing 110 to drive the flexible seal 142 to move along the height direction or the thickness direction of the bearing housing 110, so that the flexible seal 142 switches between a sealed state and a communication state. In this way, by fixing at least two movable rods 141 on opposite sides of the flexible seal 142, the center of gravity balance of the movement of the flexible seal 142 can be maintained when it switches between the sealed state and the communication state, thereby improving the movement stability of the flexible seal 142. Among them, the movable rod 141 can be a manual rod, an electric rod, etc., and can be selected according to different needs.

[0069] It should be noted that the air blown out by the air door assembly in the above embodiments can be cold air or hot air; among them, there are various heat sources for the hot air, such as a condenser (equivalent to a radiator) or an external heat source, etc., and no excessive restrictions are imposed here.

[0070] In one embodiment, the air door assembly is correspondingly arranged with the condenser of the refrigerator body 200, so that at least part of the heat of the condenser is blown into the water and gas channel through the air door assembly. In this way, the heat of the condenser can be used to heat the moisture in the moisture absorbent, accelerating the vaporization of the water droplets in the moisture absorbent into water vapor, facilitating the discharge, and improving the regeneration cycle rate of the moisture absorbent. Further, it can help the condenser dissipate heat, realizing the recycling of energy.

[0071] In another embodiment, as Figure 10 shown, the dehumidifying device 100 further includes a heating assembly 150. The heating assembly 150 is fixed to the bearing housing 110. The heating assembly 150 is used to heat the first accommodating cavity 113 so that at least part of the moisture in the moisture absorbent is discharged through the water and gas channel. In this way, by setting an external heat source (i.e., the heating assembly 150), different from the corresponding setting of the heat source of the refrigerator body 200, this setting method reduces the interference with the structural layout of the refrigerator body 200 and reduces the design problems. In addition, by setting the heating assembly 150, the moisture absorbent can be directly heated, thereby improving the discharge efficiency of the water droplets in the moisture absorbent, facilitating the conversion into water vapor, so as to be discharged through the water and gas channel, and improving the regeneration cycle rate of the moisture absorbent.

[0072] It should be noted that the heating component 150 can be, but is not limited to, an electric heating rod, an infrared heating component, etc., and no further limitation is made here. In addition, the movement of the movable rod 141 in the above embodiments can be a telescopic movement (equivalent to a telescopic rod), a rotational movement (equivalent to a rotating shaft rod), etc., and no further limitation is made here.

[0073] To improve the mechanization degree of the movement of the movable rod 141, in combination with any one of the above embodiments of the switch component 140, such as Figures 8 to 9 As shown, the switch component 140 further includes a shape memory alloy elastic member 143 and a seal (such as a flexible seal 142) fixed on the shape memory alloy elastic member 143. The movable rod 141 telescopically moves on the bearing housing 110 through the shape memory alloy elastic member 143 to drive the seal (such as the flexible seal 142) to telescopically move on the bearing housing. The seal (such as the flexible seal 142) includes a sealed state of sealingly covering the air permeable part and a communicating state of being at least partially separated from the air permeable part. The heating component 150 at least includes a first heating state of heating the first accommodation cavity 113 to a first temperature and a second heating state of heating the first accommodation cavity 113 to a second temperature. The first temperature is higher than the second temperature.

[0074] It can be understood that the following is a detailed description in combination with an implementation scenario: When the moisture absorbent is in a normal moisture absorption state, at this time the heating component 150 is at the second temperature (a lower temperature state, which can be in a shutdown or standby state), and the shape memory alloy elastic member 143 is in a second stretched state (with a smaller elongation amount, which can be in its original length or even in a compressed state). At this time, due to the shorter elongation amount of the shape memory alloy elastic member 143, the movable rod 141 and the sealing flexible member are not sealingly covered and matched with the hollow slot 131, and the first accommodation cavity 113 communicates with the refrigeration space through the air permeable part 130 for moisture absorption.

[0075] When the moisture absorbent is in a saturated moisture absorption state, the heating component 150 can be turned on to the first temperature (in a relatively high temperature state, at this time the heating component 150 has been powered on), and the shape memory alloy elastic member 143 gradually deforms with the change of temperature to reach the first stretched state (in a relatively long elongation), so that the shape memory alloy elastic member 143 drives the movable rod 141 and the flexible seal 142 to move in the direction close to the hollow slot 131, so that the flexible seal 142 seals the ventilation part 130, and the first accommodation cavity 113 is no longer communicated with the refrigeration space. Moreover, as the heating time of the heating component 150 increases, the moisture in the moisture absorbent is vaporized into water vapor and discharged from the air outlet through the water vapor channel, realizing the cyclic regeneration of the moisture absorbent. When the heating component 150 is reduced or turned off to the first temperature, the shape memory alloy elastic member 143 resets to drive the movable rod 141 and the flexible seal 142 to move in the direction away from the hollow slot 131, so that the flexible seal 142 no longer seals and cooperates with the ventilation part 130, and the first accommodation cavity 113 is communicated with the refrigeration space again to carry out cyclic moisture absorption.

[0076] In this way, through the setting of the shape memory alloy elastic member 143, the mechanical automatic switching between the communication state and the sealing state can be realized through the temperature change of the heating component 150, avoiding the need for manual or electrical signal control, reducing the control difficulty, and being convenient for operation. In addition, the symmetrically and oppositely arranged movable rods 141 perform telescopic movement, so that the process of driving the flexible seal 142 to move can maintain the center of gravity balance, improving the movement stability of the flexible seal 142.

[0077] Furthermore, in some embodiments, as Figures 8 to 9 shown, the switch assembly 140 further includes at least two shape memory alloy elastic members 143. At least two shape memory alloy elastic members 143 are fixed to the opposite sides of the seal. In this way, the movement stability of the seal can be improved.

[0078] In one example, the shape memory alloy elastic members 143 are fixedly arranged on the movable rods 141 one by one. That is to say, specifically, the first shape memory alloy elastic member 1431 can be correspondingly arranged with the first movable rod 1411, and the second shape memory alloy elastic member 1432 can be correspondingly arranged with the second movable rod 1412. Among them, the corresponding arrangement methods can be, but are not limited to, integral setting, fitting setting or sleeving setting, etc.

[0079] To reduce the occupation of the flexible seal 142 on the bearing housing 110 or the refrigeration space, in combination with any of the above embodiments of the flexible seal 142, the switch assembly 140 further includes a rotating shaft member 144. The rotating shaft member 144 is fixedly provided on the bearing housing 110. The flexible seal 142 is wound around the rotating shaft member 144. The rotating shaft member 144 is used to wind and release or wind and store the flexible seal 142, so that the flexible seal 142 can be switched between a sealed state and a communication state. It can be understood that the flexible seal 142 is neatly wound on the rotating shaft member 144, avoiding the stacking of the flexible seal 142 on the refrigeration space and avoiding the storage interference of the flexible seal 142 on the refrigeration space and the first accommodation cavity 113. In addition, through the storage of the rotating shaft member 144, the flexible seal 142 is prevented from being contaminated and damaged, ensuring the quality of the flexible seal 142, thereby ensuring the moisture absorption agent regeneration efficiency and quality.

[0080] It should be noted that the flexible seal 142 in the above embodiments can be, but is not limited to, a sealing film, an aerogel film, etc., and no further limitation is made here.

[0081] In one embodiment, the dehumidifying device 100 further includes a heat insulation layer. The heat insulation layer is arranged on the flexible seal 142 (it can be a hierarchical arrangement of the heat insulation layer - the flexible seal 142 - the air permeable part 130, or a hierarchical arrangement of the flexible seal 142 - the heat insulation layer - the air permeable part 130), so that: when the switch assembly 140 is in the closed state, the refrigeration space is hermetically insulated from the hollow groove 131 and the first accommodation cavity 113 through the heat insulation layer and the flexible seal 142. It can be understood that when the flexible seal 142 is made of some materials without heat insulation performance, such as plastic film, etc., when the heating assembly 150 heats and evaporates the moisture absorption agent in the first accommodation cavity 113, it is inevitable that the temperature of the first accommodation cavity 113 will rise. At this time, through the setting of the heat insulation layer, when the flexible seal 142 is in the sealed state, there is a flexible seal 142 and a heat insulation layer between the first accommodation cavity 113 and the refrigeration space to achieve the sealing and heat insulation functions, ensuring the fresh-keeping refrigeration temperature in the refrigeration space, ensuring the storage temperature of stored items such as food ingredients, and improving the storage quality.

[0082] It should be noted that the heat insulation layer can be, but is not limited to, traditional heat insulation materials such as glass fiber, asbestos, rock wool, and silicate, and can also be new heat insulation materials such as aerogel film.

[0083] In some other embodiments, the flexible seal 142 includes an aerogel film. The aerogel film is fixedly provided on the movable rod 141, and the movable rod 141 drives the aerogel film to move relative to the bearing housing 110, so that the aerogel film switches between a sealed state and a communication state. It can be understood that, as a special material, the aerogel film can achieve the functions of sealing and water isolation while also achieving heat insulation. In this way, when the heating component 150 evaporates and heats the desiccant in the first accommodation cavity 113, the increase in the gas temperature in the first accommodation cavity 113 will not be transmitted to the refrigeration space through the ventilation part 130, that is, it will not cause the temperature of the refrigeration space to rise, ensuring the stability of the refrigeration temperature.

[0084] In order to improve the intelligent level of the dehumidification device 100, in some embodiments, as Figure 10 shown, the dehumidification device 100 further includes a controller 160 and a humidity sensing component. The humidity sensing component is used to detect the humidity information of the refrigeration space. The controller 160 is communicatively connected to the humidity sensing component, the heating component 150, and the fan component 120. The controller 160 is used to adjust the heating component 150 and the fan component 120 according to the humidity information, so that the heating component 150 switches between a first heating state and a second heating state. It can be understood that the humidity sensing component is used to detect the humidity information of the refrigeration space, so that the usage status of the desiccant can be judged through the humidity information, and then the fan component 120 and the heating component 150 can be controlled according to the usage status to achieve targeted regulation. In this way, the intelligent regulation process of the heating component 150 and the fan component 120 can be improved, making the judgment of the saturation state of the desiccant and the control of the humidity in the refrigeration space more accurate, and improving the moisture-proof and freshness-keeping quality of the refrigeration space. It should be noted that the control logic of the controller 160 for adjusting the heating component 150 and the fan component 120 through the humidity information can be various and can be selected according to different production requirements, and will not be overly limited here.

[0085] In one example, the humidity information may be relative humidity. The humidity sensing component is installed inside the refrigeration space (such as the inner side wall of the refrigerator body 200), so that the humidity sensing component can detect the relative humidity inside the refrigeration space. The controller 160 is communicatively connected to the humidity sensing component, so that the controller 160 receives the relative humidity to determine the current relative humidity and the preset humidity. When the relative humidity exceeds the preset humidity, the controller 160 can determine that the desiccant is in a relatively saturated moisture absorption state at this time, and thus turn on the heating component 150 for a first duration. During the first duration, the heating component 150 rises from a second temperature to a first temperature, so that the shape memory alloy elastic member 143 is transformed from a second stretched state to a first stretched state, and the elongation of the shape memory alloy elastic member 143 drives the movable rod 141 and the flexible seal 142 to hermetically cover the hollow slot 131, realizing the relative sealing of the first accommodation cavity 113 and the refrigeration space. At the same time, the controller 160 controls the fan assembly 120 to turn on for a second duration, and the second duration is greater than the first duration, so that when the heating component 150 heats the first accommodation cavity 113 and the moisture in the desiccant evaporates into water vapor, the water vapor can be blown out of the air outlet 112 (i.e., outside the refrigeration space, such as outside the drawer body 210) by the blowing action of the fan assembly 120. After the heating component 150 completes heating for the first duration, the controller 160 controls to turn off the heating component 150. At this time, the fan assembly 120 continues to operate to cool the first accommodation cavity 113 so that the first accommodation cavity 113 is reduced from the first temperature to the second temperature. At this time, the shape memory alloy elastic member 143 resets and compresses to drive the movable rod 141 and the flexible seal 142 to move away from the hollow slot 131, so that the first accommodation cavity 113 and the refrigeration space are reconnected. The controller 160 controls to close the air door assembly, and one regeneration process cycle of the desiccant is completed. The controller 160 controls to repeat the previous step and continues to obtain the relative humidity of the refrigeration space. It should be noted that in addition to relative humidity, the above humidity information may also be a humidity change rate, etc., which can be replaced and selected according to actual needs and will not be limited too much here.

[0086] In another example, the humidity information includes relative humidity and the rate of change of humidity. The temperature sensing component is installed on the inner side wall of the refrigerating space (such as the refrigerator body 200), so that the humidity sensing component can detect the relative humidity of the refrigerating space inside the refrigerator body 200. The controller 160 is communicatively connected to the temperature sensing component to receive a plurality of relative humidities within the third time period. The controller 160 calculates the rate of change of humidity based on the plurality of relative humidities within the third time period. When the relative humidity exceeds the preset humidity and the rate of change of humidity is lower than the preset rate of change, it can be determined that the desiccant tends to be in a saturated state of water absorption, resulting in a relatively high humidity but little change in humidity in the refrigerating space inside the refrigerator body 200, and the excessive moisture absorption effect of the desiccant no longer exists. At this time, the controller 160 controls the heating component 150 to be turned on for the fourth time period, so that the first accommodating cavity 113 is heated from the second temperature to the first temperature, causing the shape memory alloy elastic member 143 to stretch and drive the movable rod 141 and the flexible seal 142 to move in the direction close to the hollow slot 131, so that the first accommodating cavity 113 and the refrigerating space are relatively sealed. At the same time, the controller 160 controls the damper assembly to be opened for the fifth time period, and the fifth time period is longer than the fourth time period, so that during the heating of the heating component 150, the water vapor in the desiccant can be blown out of the water vapor channel through the action of the damper assembly, that is, blown out at the refrigerating space of the drawer body 210. When the heating component 150 completes the heat release for the fourth time period, the controller 160 controls the heating component 150 to be turned off. At this time, the fan assembly 120 continues to operate to cool down, so that the first accommodating cavity 113 is reduced from the first temperature to the second temperature, causing the shape memory alloy elastic member 143 to reset and compress, driving the movable rod 141 and the flexible seal 142 to move away from the hollow slot 131, so that the first accommodating cavity 113 and the refrigerating space are communicated to continue moisture absorption. When the fan assembly 120 completes the fifth time period, the controller 160 turns off the fan assembly 120, and one regeneration cycle of the desiccant is completed. Repeat the above steps to achieve multiple regeneration cycles of the desiccant.

[0087] It should be noted that the control of the time period in the above embodiments can be determined according to the capacity of the refrigerating space of the refrigerator 10, or determined by the dosage of the desiccant (such as related to the height of the desiccant), etc.

[0088] Specifically, the controller 160 can be connected to the terminal device for communication to send out an alarm signal, and the communication connection method can be but not limited to wireless communication connection methods such as wifi and Bluetooth, and can also be wired communication connection methods such as circuit control. In one embodiment, the controller 160 also includes a memory, and the memory is used to store multiple first preset temperatures and multiple second preset temperatures. It should be noted that the memory in the above embodiment may include at least one type of storage medium, and the storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc.

[0089] The above-mentioned computer program can be implemented using a computer-readable medium such as computer software, hardware or any combination thereof. For hardware implementation, the embodiments described herein can be implemented using at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller 160, a microcontroller, a microprocessor, and an electronic unit designed to perform the functions described herein. For software implementation, embodiments such as processes or functions can be implemented with separate software modules that allow the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any appropriate programming language, and the software code can be stored in a memory and executed by a computer program.

[0090] In addition, there can be many types of desiccant, such as silica gel, calcium chloride, oxygen-controlling moisturizing film, etc. or a combination thereof, which are not restricted here.

[0091] In some embodiments, the hygroscopic agent is an oxygen-controlling moisturizing film. The oxygen-controlling moisturizing film is fitted to the breathable portion 130. Specifically, the oxygen-controlling moisturizing film has an inhibited state and a hygroscopic state. Among them, when the refrigeration space is in a low-humidity state (i.e., the first humidity, the humidity is relatively low), the hygroscopic agent is not required to absorb too much moisture at this time, and the oxygen-controlling moisturizing film can be in an inhibited state to inhibit the water vapor in the refrigeration space from being transported from the refrigeration space to the first accommodating chamber 113, so as to have a good moisturizing effect on the refrigeration space. When the refrigeration space is in a high-humidity state (i.e., the second humidity, the humidity is relatively high), the hygroscopic agent is in a hygroscopic state to promote the water vapor in the refrigeration space to be transported from the refrigeration space to the first accommodating chamber 113, so that the refrigeration space can be well dehumidified. In this way, the precise allocation of water and oxygen in the refrigeration space can be achieved, excessive moisture absorption is avoided, and the storage quality can be improved.

[0092] It should be noted that the moisture absorbent can only include the oxygen control moisture retention film (in this case, the water vapor can be liquefied into water and removed by the heating component 150), or it can be the combination of the oxygen control moisture retention film and a desiccant such as silica gel (for example, the desiccant is stored in the first accommodation cavity 113 for moisture absorption), etc. There is no excessive limitation here.

[0093] In some embodiments, referring back Figure 1 As shown, the carrier housing 110 is further provided with a plurality of reinforcing ribs 114, and the reinforcing ribs 114 are arranged along the height direction. In this way, the support structure strength of the carrier housing 110 can be enhanced, and the stability of the dehumidifying device 100 can be improved.

[0094] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application. When some changes or modifications can be made to form equivalent implementation manners of equivalent changes by using the disclosed technical content above, but as long as it does not depart from the content of the technical solution of the present application, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A dehumidifying device is applied to a refrigeration device, characterized in that, Comprising: A carrying housing, provided with an air inlet, an air outlet, a first accommodating cavity and a breathable part; the first accommodating cavity is used for storing a moisture absorbent; the air inlet and the air outlet are communicated and arranged at both ends of the first accommodating cavity, so that a water vapor channel is formed by communicating the air inlet, the first accommodating cavity and the air outlet; the breathable part is communicated with the first accommodating cavity; A fan assembly, which is oppositely arranged with respect to the air inlet; A switch assembly, which is movably matched with the breathable part; the switch assembly includes a closed state in which it is in limit sealing cooperation with the breathable part and an open state in which it is at least partially spaced from the breathable part; When the switch assembly is in the closed state, the water vapor channel is hermetically arranged with the refrigeration space in the refrigeration device; when the switch assembly is in the open state, the water vapor channel is communicated with the refrigeration space through the breathable part.

2. The dehumidifying device according to claim 1, wherein The switch assembly includes at least one movable rod and a flexible seal fixed to the movable rod; the flexible seal includes a sealed state in which it hermetically covers the breathable part and a communicating state in which it is at least partially separated from the breathable part; the movable rod is movably arranged on the carrying housing, so that the movable rod drives the seal to move relative to the carrying housing, so that the flexible seal switches between the sealed state and the communicating state.

3. The dehumidifying device according to claim 2, characterized in that The switch assembly includes at least two of the movable rods; at least two of the movable rods include a first movable rod and a second movable rod; the first movable rod and the second movable rod are arranged at intervals along the length direction of the water vapor channel; both sides of the flexible seal are fixed to the first movable rod and the second movable rod respectively; the first movable rod and the second movable rod telescopically move in the carrying housing to drive the flexible seal to move along the height direction or the thickness direction of the carrying housing, so that the flexible seal switches between the sealed state and the communicating state.

4. The dehumidifying device according to any one of claims 1 to 3, characterized in that, The dehumidifying device further includes a heating assembly; the heating assembly is fixed to the carrying housing; the heating assembly is used for heating the first accommodating cavity, so that at least part of the moisture in the moisture absorbent is discharged through the water vapor channel.

5. The dehumidifying device according to claim 4, wherein The switch assembly further includes a shape memory alloy elastic member and a seal fixed to the shape memory alloy elastic member; the shape memory alloy elastic member telescopically moves on the carrying housing to drive the seal to telescopically move on the carrying housing; the seal includes a sealed state in which it hermetically covers the breathable part and a communicating state in which it is at least partially separated from the breathable part; the heating assembly at least includes a first heating state in which the first accommodating cavity is heated to a first temperature and a second heating state in which the first accommodating cavity is heated to a second temperature; Wherein, when the heating component is in the first heating state, the shape memory alloy elastic member is in the first stretched state, so that the shape memory alloy elastic member drives the seal to move to the sealed state; when the heating component is in the second heating state, the shape memory alloy elastic member is in the second stretched state, so that the shape memory alloy elastic member resets to drive the seal to reset to the communication state; the first temperature is higher than the second temperature; the elongation of the first stretched state is greater than the elongation of the second stretched state.

6. The dehumidifying device according to claim 5, characterized in that, The dehumidifying device further includes a controller and a humidity sensing component; the humidity sensing component is used to detect the humidity information of the refrigerating space; the controller is communicatively connected to the humidity sensing component, the heating component and the fan component, and the controller is used to adjust the heating component and the fan component according to the humidity information, so that the heating component switches between the first heating state and the second heating state; And / or, the seal is a flexible seal; the switch assembly further includes a rotating shaft member; the rotating shaft member is fixedly arranged on the carrying shell; the flexible seal is wound around the rotating shaft member; the rotating shaft member is used to wind and release or wind and store the flexible seal, so that the flexible seal switches between the sealed state and the communication state.

7. The dehumidifying device according to claim 2 or 3, characterized in that, The dehumidifying device further includes a heat insulation layer; the heat insulation layer is arranged on the flexible seal, so that: when the switch assembly is in the closed state, the refrigerating space is hermetically and thermally insulated from the air permeable part and the first accommodating cavity through the heat insulation layer and the flexible seal; And / or, the moisture absorbent includes an oxygen-controlled moisture retention film; the oxygen-controlled moisture retention film is attached to the air permeable part; the oxygen-controlled moisture retention film includes an inhibition state and a moisture absorption state; when the refrigerating space is at a first humidity, the oxygen-controlled moisture retention film is in the inhibition state to inhibit the water vapor in the refrigerating space from entering the first accommodating cavity; when the refrigerating space is at a second humidity, the oxygen-controlled moisture retention film is in the moisture absorption state to increase the entry of the water vapor in the refrigerating space into the first accommodating cavity; wherein, the first humidity is less than the second humidity.

8. The dehumidifying device according to claim 2 or 3, characterized in that, The flexible seal includes an aerogel film; the aerogel film is fixedly arranged on the movable rod, and the movable rod drives the aerogel film to move relative to the carrying shell, so that the aerogel film switches between the sealed state and the communication state.

9. A refrigerator, characterized in that, It includes a refrigerator body and the dehumidifying device according to any one of claims 1 to 8 above, wherein a refrigerating space is provided in the refrigerator body; the dehumidifying device is fixedly abutted against the inner side wall of the refrigerator body.

10. The refrigerator according to claim 9, characterized in that, The refrigerator includes at least two of the dehumidifying devices; wherein, at least two of the dehumidifying devices include a first dehumidifying device and a second dehumidifying device; the first dehumidifying device and the second dehumidifying device are respectively installed on the inner side walls of opposite sides of the refrigerator body; And / or, the refrigerator body further includes a drawer body; the drawer body is movably arranged in the refrigerating space; the drawer body is provided with a second accommodating cavity; the second accommodating cavity and the first accommodating cavity are communicated through the air-permeable part; an air outlet is arranged on the drawer body, and the moisture of the moisture absorbent is discharged out of the first accommodating cavity and the second accommodating cavity through the air outlet.

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