Refrigerator

By setting up a load identification mechanism at the bottom of the refrigerator storage container, detecting the load volume and triggering rapid cooling control, the problem of short shelf life of the refrigerator's ingredients under large load volume is solved, and a better preserved effect is achieved.

CN120043306APending Publication Date: 2025-05-27TOSHIBA HA MANUFACTURING (NANHAI) CO LTD
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Patent Information

Application Number
CN202311595027.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-27
Publication Date
2025-05-27

AI Technical Summary

Technical Problem

In the case of large loads of existing refrigerators, the shelf life of ingredients is short, especially under the conditions of large loads of drawers, the fresh preservation effect is greatly reduced, becoming one of the pain points of users.

Method used

A refrigerator is designed, including a box, storage container, load identification mechanism and control components. The load identification mechanism consists of a first identification member and a second identification member. When the load weight of the storage container exceeds the rated load capacity, the bottom wall of the storage container is deformed, so that the first identification member and the second identification member are close to generate an electrical signal, transmitted to the control component, triggering a rapid temperature pulling procedure and pulling the temperature control temperature.

Benefits of technology

By adding a load identification mechanism at the bottom of the storage container, when the load is large, rapid cooling control is triggered, the shelf life of the ingredients is extended, and the freshness effect under large loads is improved.

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Abstract

The invention discloses a refrigerator, and relates to the technical field of refrigeration equipment, a refrigerator body is provided with a storage chamber, and the storage chamber is provided with two supporting parts; the storage container is arranged in the storage chamber and abuts against the supporting part. The load identification mechanism comprises a first identification piece and a second identification piece; the bottom wall of the storage container can deform due to load bearing, so that the first identification piece and the second identification piece are made to get close to each other to generate an electric signal, and the electric signal is transmitted to the control component to reduce the temperature. The load identification mechanism is additionally arranged at the bottom of the storage container, and when the load weight of the storage container exceeds the rated load capacity, the bottom wall of the storage container deforms, so that a first identification piece and a second identification piece of the load identification mechanism get close to each other to generate an electric signal, and the electric signal is transmitted to the control part; and a rapid temperature pulling program is triggered and the temperature control temperature is lowered, so that the refreshing time of the food materials is prolonged under the condition of better ensuring that the loading capacity is relatively large.
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Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly to a refrigerator. Background Art

[0002] With the rise of fresh food e-commerce in recent years, people's demand for long-term storage of meat and fresh food ingredients has gradually shifted to short-term storage. In recent years, various refrigerator companies have developed preservation functions for short-term preservation of meat, such as zero-degree preservation and micro-freezing preservation. Compared with traditional frozen preservation, the short-term preservation function does not require thawing, and the user experience is better. However, there are also deficiencies. The preservation period is short. Especially under the condition of a large drawer load, the preservation effect is greatly reduced, which has become one of the pain points for users. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a refrigerator that can extend the preservation period of food ingredients under the condition of a large load.

[0004] The refrigerator according to an embodiment of the present invention includes: a box body, a storage container, a load identification mechanism, and a control component. The box body is provided with a storage compartment, and support portions are provided on two opposite side walls of the storage compartment; the storage container is disposed in the storage compartment, and the side of the storage container abuts against the support portion so that there is a gap between the bottom wall of the storage compartment and the bottom surface of the storage container; the load identification mechanism is disposed between the bottom wall of the storage compartment and the bottom surface of the storage container, and the load identification mechanism includes a first identification member and a second identification member; the control component is used to control the temperature of the storage compartment; wherein, the bottom wall of the storage container can be deformed due to the load, so as to cause the first identification member and the second identification member to approach each other to generate an electrical signal, and the electrical signal is transmitted to the control component to reduce the temperature.

[0005] The refrigerator according to an embodiment of the present invention has at least the following beneficial effects: By adding a load identification mechanism at the bottom of the storage container, when the load weight of the storage container exceeds the rated load, the bottom wall of the storage container is deformed, so that the first identification member and the second identification member of the load identification mechanism approach each other to generate an electrical signal, and the electrical signal is transmitted to the control component to trigger a rapid temperature reduction program and lower the controlled temperature, which better ensures the extension of the preservation period of food ingredients under the condition of a large load.

[0006] According to some embodiments of the present invention, the first identification member is fixed to the bottom wall of the storage compartment, and the second identification member is fixed to the bottom surface of the storage container.

[0007] According to some embodiments of the present invention, the first identification member is a reed switch, and the second identification member is a magnetic member.

[0008] According to some embodiments of the present invention, the second identification member is snap-connected to the storage container.

[0009] According to some embodiments of the present invention, the refrigerator further includes an air duct assembly disposed at the rear of the storage container, and the air duct assembly is provided with an air outlet and an air return port communicating with the storage container.

[0010] According to some embodiments of the present invention, the control component is disposed in the air duct assembly, and the control component can sense the space temperature of the storage container and control the air supply of the air duct assembly.

[0011] According to some embodiments of the present invention, the position of the load identification mechanism corresponds to the middle region of the storage container.

[0012] According to some embodiments of the present invention, the load identification mechanism includes a support member disposed on the bottom wall of the storage compartment, the second identification member is telescopically movably disposed on the support member, and the first identification member is fixed to the bottom surface of the storage container and is located below the second identification member.

[0013] According to some embodiments of the present invention, the support portion is configured as a guide rail, and the storage container slides along the guide rail.

[0014] According to some embodiments of the present invention, the guide rail is provided with guide grooves, the storage container is provided with rollers cooperating with the guide grooves, and along the direction in which the storage container is pushed into the storage compartment, the distance between the two guide grooves gradually decreases.

[0015] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments, wherein:

[0017] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0018] Figure 2 is Figure 1 a schematic diagram of the refrigerator shown in FIG. after removing the door body and the drawer;

[0019] Figure 3 is Figure 1 a cross-sectional view of the refrigerator shown in FIG.

[0020] Figure 4 is Figure 3 an enlarged view of part A shown in FIG.

[0021] Reference numerals:

[0022] 101, Cabinet; 102, Drawer;

[0023] 201, Air duct housing; 202, Air outlet; 203, Air return opening; 204, Control component; 205, Guide rail; 206, Cover plate; 207, Load identification mechanism;

[0024] 301, Door body; 302, Refrigerating compartment; 303, Variable temperature compartment; 304, Freezing compartment;

[0025] 401, First identification piece; 402, Second identification piece. Detailed implementation manner

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. 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 a limitation of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] With the rise of fresh food e-commerce in recent years, people's demand for meat and fresh food ingredients has gradually shifted from long-term storage to short-term storage. At present, each refrigerator enterprise has developed a fresh-keeping function for short-term preservation of meat, such as zero-degree fresh-keeping, micro-freezing fresh-keeping, etc. Compared with traditional frozen fresh-keeping, the short-term fresh-keeping function does not require thawing, and the user experience is better, but there are also some other deficiencies, such as short fresh-keeping period and significant reduction in fresh-keeping effect when the drawer load is large. Among them, the decline in fresh-keeping effect has become one of the pain points for users.

[0031] Based on this, an embodiment of the present invention provides a refrigerator. By adding a load recognition mechanism to the bottom of the storage container, when the load weight of the storage container exceeds the rated load, the bottom wall of the storage container deforms, causing the first recognition member and the second recognition member of the load recognition mechanism to approach each other to generate an electrical signal, which is transmitted to the control component to trigger a rapid temperature reduction program and lower the controlled temperature, better ensuring the freshness preservation period of food materials under the condition of a large load.

[0032] The following further elaborates on the embodiments of the present invention in conjunction with the accompanying drawings.

[0033] Figure 1 is the overall schematic diagram of the refrigerator provided by the embodiment of the present invention; Figure 2 is the internal structure schematic diagram of the refrigerator provided by the embodiment of the present invention; Figure 3 is the cross-sectional view of the refrigerator provided by the embodiment of the present invention; Figure 4 is the installation schematic diagram of the load recognition mechanism 207.

[0034] Referring to Figures 1 to 4 as shown, it can be understood that the refrigerator includes a box body 101 and a door body 301. The main functions of the box body 101 and the door body 301 are to isolate the internal and external air and ensure the low-temperature environment inside the refrigerator. The inside of the box body 101 uses high-efficiency heat-insulating materials, such as polyurethane, etc., to effectively maintain the low-temperature environment inside the box and reduce energy consumption. The box body 101 includes side plates, a back plate, upper / middle / lower beams, a box liner, a bottom plate assembly, etc. Storage compartments such as a refrigerating compartment 302, a variable-temperature compartment 303, or a freezing compartment 304 are formed inside the box body 101. The door body 301 is connected to the box body 101 and can close the openings of storage compartments such as the refrigerating compartment 302, the variable-temperature compartment 303, and the freezing compartment 304 to make them relatively airtight spaces. A sealing strip is provided inside the door body 301 to ensure the sealing performance of the box body 101 and prevent external heat from entering the refrigerator. At the same time, the sealing strip can also reduce the leakage of cold air and improve the energy efficiency of the refrigerator.

[0035] It can be understood that the main function of the refrigerating compartment 302 is to preserve and refrigerate food. By maintaining a low-temperature environment, the refrigerating compartment can extend the shelf life of food and keep the freshness and taste of food. The temperature of the refrigerating compartment 302 can be adjusted as needed. Generally, the suitable temperature of the refrigerating compartment 302 is between 4°C and 8°C. Users can adjust the temperature through the temperature controller or touch screen on the refrigerator door. The refrigerating compartment 302 can store various foods that need to be refrigerated, such as fruits, vegetables, beverages, dairy products, etc.

[0036] The main function of the variable-temperature compartment 303 is to provide flexible storage space. The variable-temperature compartment can change its temperature according to the user's needs, so as to meet the storage requirements of different foods. The temperature of the variable-temperature compartment 303 can also be adjusted through the thermostat or touch screen on the refrigerator door. The user can set the temperature within different ranges according to needs, such as 0°C to -10°C or -7°C to -18°C, etc. The variable-temperature compartment 303 can store various foods that require special temperature storage, such as meat, fish, cold drinks, etc.

[0037] The main function of the freezer compartment 304 is to quickly freeze foods at extremely low temperatures to extend the shelf life of the foods and maintain their nutritional value. The temperature of the freezer compartment 304 is generally low, usually below -18°C. The user can adjust the temperature through the thermostat or touch screen on the refrigerator door. The freezer compartment 304 can store various foods that need to be stored frozen, such as meat, seafood, ice cream, etc.

[0038] Refer to Figure 2 and Figure 3 As shown, it can be understood that the refrigerator also includes an air duct assembly, which is mainly composed of an air duct housing 201, a damper, a fan, a motor, etc. An air outlet 202 is provided on the air duct housing 201. The damper can control whether cold air enters the air outlet 202. The fan and the motor cause the cold air to flow inside the air duct housing 201. The main function of the air duct assembly is to guide the cold air to circulate inside the refrigerator, so as to take away the heat from the inside of the refrigerator and achieve the refrigeration effect. A return air outlet 203 is also provided on the air duct housing 201. The air flow inside the drawer 102 is transported to the heat exchange device of the refrigerator through the return air outlet 203 for heat exchange and thus participates in the cycle.

[0039] Refer to Figure 1 and Figure 3 As shown, it can be understood that the refrigerator also includes a storage container. The storage container is a device for storing various items. Its function is to protect the internal items and at the same time facilitate people to manage and access them. The storage container can be a cylinder with an open mouth, or it can have a closable lid or door to make it have closure to ensure that the internal items are not affected by the external environment, such as dust, moisture, etc. Here, the storage container is taken as the drawer 102 as an example for illustration.

[0040] Refer to Figure 2 and Figure 3As shown, it can be understood that the drawer 102 is located in the variable-temperature compartment 303, and functions such as zero-degree fresh-keeping and slightly frozen fresh-keeping can be achieved. Compared with traditional frozen fresh-keeping, the short-term fresh-keeping function does not require thawing, providing a better user experience. The control logic of a general refrigerator executes control steps according to the set temperature. For example, when it is detected that the temperature in the variable-temperature compartment 303 is higher than the set temperature, the air duct assembly is opened to allow cold air to enter the variable-temperature compartment 303 to cool it until the temperature in the variable-temperature compartment 303 reaches the set temperature, and then the air duct assembly is closed. However, this set temperature remains unchanged, resulting in a basically constant cooling rate for the variable-temperature compartment 303. When the load in the drawer 102 is large, the cooling rate of the variable-temperature compartment 303 is slow and cannot reach the set temperature within the expected time, greatly reducing the fresh-keeping effect and becoming one of the pain points for users.

[0041] Refer to Figure 2 As shown, it can be understood that a cover plate 206 is provided between the refrigerating compartment 302 and the variable-temperature compartment 303. The cover plate 206 can effectively cover the opening of the drawer 102, preventing dust, dirt, etc. from entering the interior of the drawer 102 and keeping the interior of the drawer 102 clean and hygienic. In addition, a heat-insulating layer is provided on the cover plate 206 to reduce the heat exchange between the refrigerating compartment 302 and the variable-temperature compartment 303, thereby better controlling the temperature of the drawer 102.

[0042] Refer to Figures 2 to 4 As shown, it can be understood that the refrigerator further includes a load identification mechanism 207 and a control component 204. The load identification mechanism 207 is disposed between the bottom wall of the variable-temperature compartment 303 and the bottom surface of the drawer 102. The load identification mechanism 207 is used to determine whether to activate the rapid cooling control and transmit a signal to the control component 204. The control component 204 determines the target temperature control according to the received signal, that is, it can rapidly reduce the temperature of the food materials and set an appropriate target temperature control when the load of the food materials in the drawer 102 is large and the temperature of the newly placed food materials is low, meeting the fresh-keeping requirements of the food materials in the drawer 102 under different load conditions, achieving precise temperature control of the drawer 102 and having a good fresh-keeping effect.

[0043] It can be understood that the control component 204 has the function of detecting temperature, can sense the space temperature of the drawer 102, and controls the air duct assembly to supply air. The control component 204 usually uses a thermal resistor or a thermocouple as the temperature measurement element, and can convert the temperature signal into an electrical signal for output. The thermal resistor is based on the characteristic that the resistance value changes with temperature, while the thermocouple is based on the principle of the thermoelectric effect. The control component 204 is arranged in the air duct housing 201 and is located between the air damper and the air outlet 202. When the food load in the drawer 102 is large and the temperature of the just-placed food is low, the load identification mechanism 207 transmits a signal to the control component 204, and the control component 204 controls the air damper to open and can also control the rotation speed of the fan, so as to increase the input of cold air and make the temperature in the drawer 102 drop rapidly.

[0044] It can be understood that the bottom wall area of the drawer 102 is large, and its length and width are large. The material of the refrigerator drawer 102 usually uses engineering plastic, also known as ABS (Acrylonitrile-Butadiene-Styrene) plastic. When the drawer 102 bears an item, it will be subjected to a downward pressure. When the pressure exceeds a certain value, it will cause the drawer 102 to deform. Specifically, when the drawer 102 bears a heavy object, its bottom will be subjected to a downward pressure. The action of the force will cause the plastic to deform. When the molecular chain is stretched or compressed, it will cause the bottom of the drawer 102 to bend or dent and other deformations.

[0045] It can be understood that the position of the load identification mechanism 207 corresponds to the middle area of the drawer 102, because the deformation generated in the middle area of the drawer 102 is the largest. The position of the load identification mechanism 207 corresponding to the middle area of the drawer 102 can more accurately reflect the change in the load of the drawer 102, thereby providing a basis for the precise control of temperature.

[0046] Refer to Figure 4 As shown, it can be understood that the load identification mechanism 207 includes a first identification member 401 and a second identification member 402. When the distance between the first identification member 401 and the second identification member 402 is less than a predetermined distance, for example, when the first identification member 401 and the second identification member 402 are in contact with each other, the load identification mechanism 207 generates an electrical signal. When the distance between the first identification member 401 and the second identification member 402 is greater than the predetermined distance, the load identification mechanism 207 does not generate an electrical signal or generates another electrical signal different from the previous one.

[0047] It can be understood that the first identification member 401 and the second identification member 402 are arranged in the vertical direction, and the first identification member 401 and the second identification member 402 are located between the bottom wall of the variable temperature compartment 303 and the bottom surface of the drawer 102. When the items placed in the drawer 102 are lighter, the deformation of the drawer 102 is less, and the distance between the first identification member 401 and the second identification member 402 is greater than the predetermined distance. At this time, the variable temperature compartment 303 cools the drawer 102 according to the first set temperature. When the items placed in the drawer 102 are heavier, the deformation of the drawer 102 is more, and the downward deformation of the bottom wall of the drawer 102 causes the first identification member 401 and the second identification member 402 to approach each other. Eventually, the distance between the first identification member 401 and the second identification member 402 is less than the predetermined distance. At this time, the variable temperature compartment 303 cools the drawer 102 according to the second set temperature, and the second set temperature is less than the first set temperature.

[0048] It should be noted that during the operation of the refrigerator, the target temperature control temperature of the drawer 102 can change, and the target temperature control temperature of the drawer 102 will affect the cooling capacity of the refrigerator to the drawer 102 through the air duct assembly. The lower the target temperature control temperature of the drawer 102 is set, the greater the cooling capacity to the drawer 102 will be; similarly, the higher the target temperature control temperature of the drawer 102 is set, the smaller the cooling capacity to the drawer 102 will be.

[0049] Generally, when the drawer 102 is set in the variable temperature compartment 303, the target temperature control temperature of the drawer 102 can be set to -1°C. When the items placed in the drawer 102 are lighter (for example, empty / lightly loaded), the air duct assembly is controlled to cool the drawer 102 at the first set temperature, and the first set temperature can be set to -1°C. At this time, the temperature of the items in the drawer 102 drops slowly, but there are also fewer items that need to be cooled, and they can be cooled to the target temperature control temperature within the expected time, which is relatively energy-saving. When the items placed in the drawer 102 are heavier (for example, half-loaded / full-loaded), the load identification mechanism 207 determines that fast cooling control needs to be activated, and the control component 204 controls the air duct assembly to cool the drawer 102 at the second set temperature lower than -1°C. For example, the second set temperature can be set to -5°C. Therefore, the difference between the current temperature of the drawer 102 and the second set temperature will be greater, and the cooling capacity to the drawer 102 will also increase, so that the temperature of the items inside the drawer 102 can drop rapidly. When the surface temperature of the items drops to -1°C, the fast cooling control can be exited.

[0050] It should be noted that in some other embodiments, the refrigerator can also adopt the direct cooling method to adjust the temperature of the storage compartment by turning on and off the evaporator.

[0051] Refer to Figure 2As shown, it can be understood that the box body 101 is further provided with a guide rail 205, that is, the supporting part is configured as the guide rail 205, and the drawer 102 is installed on the guide rail 205, so that it can move horizontally on the guide rail 205, enabling the drawer 102 to slide out from the inside of the refrigerated compartment 302 or the variable-temperature compartment 303, facilitating the user to pick up and place food ingredients, and sliding back into the inside of the refrigerated compartment 302 or the variable-temperature compartment 303 after the user finishes picking up and placing the food ingredients.

[0052] Referring to Figure 4 As shown, it can be understood that the first identification member 401 is fixed to the bottom wall of the storage compartment, and the second identification member 402 is fixed to the bottom surface of the drawer 102. When the drawer 102 is unloaded / lightly loaded, there is a certain gap between the first identification member 401 and the second identification member 402. At this time, the variable-temperature compartment 303 cools the drawer 102 according to the first set temperature. When the drawer 102 is half-loaded / full-loaded, the second identification member 402 moves downward as the bottom surface of the drawer 102 deforms, and the distance between the first identification member 401 and the second identification member 402 is less than a predetermined distance. At this time, the variable-temperature compartment 303 cools the drawer 102 according to the first set temperature, and the second set temperature is less than the first set temperature.

[0053] It can be understood that the second identification member 402 is snap-connected to the drawer 102. The snap structure can enable the second identification member 402 to reach the installation position smoothly, correctly, and quickly, and the snap structure locks the second identification member 402 on the drawer 102 and ensures that it does not fall off during use. The snap structure can be disassembled without tools, improving the convenience of installation and disassembly. Of course, the second identification member 402 can also be connected to the drawer 102 by screws.

[0054] It should be noted that in some other embodiments, the components of the load identification mechanism 207 may not be placed on the drawer 102. For example, the load identification mechanism 207 includes a support member that moves on the bottom wall of the storage compartment. The second identification member 402 is disposed on the top of the support member, and the first identification member 401 is fixed to the bottom wall of the storage compartment. The second identification member 402 is located above the first identification member 401. The support member is divided into a plurality of support portions, and the plurality of support portions are spaced apart along the outer periphery of the first identification member 401. Each support portion is provided with a wedge surface that faces the first identification member 401. The wedge surfaces of the plurality of support portions jointly support the second identification member 402. A return spring is disposed on one side of each support portion facing away from the first identification member 401. Each support portion can move radially along the first identification member 401, so that the second identification member 402 can move telescopically in the up and down direction on the support member. When the drawer 102 is unloaded / lightly loaded, there is a certain gap between the first identification member 401 and the second identification member 402, and the bottom surface of the drawer 102 contacts or has a gap with the second identification member 402. At this time, the variable temperature compartment 303 cools the drawer 102 according to the first set temperature. When the drawer 102 is half-loaded / full-loaded, the bottom surface of the drawer 102 deforms and pushes the second identification member 402, and the second identification member 402 moves downward as the bottom surface of the drawer 102 deforms. The distance between the first identification member 401 and the second identification member 402 is less than the predetermined distance. At this time, the variable temperature compartment 303 cools the drawer 102 according to the first set temperature, and the second set temperature is less than the first set temperature.

[0055] It can be understood that the first identification member 401 is a reed switch, and the second identification member 402 is a magnetic member. The working principle of the reed switch is that when a magnetic field acts on the reed switch, the reed pieces at the two ends of the reed switch will be attracted to each other due to magnetization, causing the two reed contacts to contact, thereby closing the circuit. When there is no magnetic field, the two reed pieces in the glass tube are separated. When the magnetic member approaches the glass tube, under the action of the magnetic field magnetic force lines, the two reed pieces in the tube are magnetized and attracted to each other to contact, connecting the circuits connected to the two pins. After the external magnetic force disappears, the two reed pieces separate due to their own elasticity, and the circuit is disconnected. Therefore, when the drawer 102 is unloaded / lightly loaded, the magnetic member is far from the reed switch, and the magnetic force of the magnetic member is not sufficient to magnetize the two reed pieces of the reed switch and attract them to contact each other. When the drawer 102 is half-loaded / full-loaded, the magnetic member is close to the reed switch, and the magnetic force of the magnetic member is sufficient to magnetize the two reed pieces of the reed switch and attract them to contact each other.

[0056] It should be noted that the load identification mechanism 207 can also be devices such as an inductive proximity switch or a capacitive proximity switch. Among them, the inductive proximity switch consists of a high-frequency oscillator, a switch detector, and an output transistor. When a metal object approaches the switch, due to the effect of electromagnetic induction, eddy currents will be generated on the metal object, which will change the inductance of the proximity switch, thereby triggering the switch to act. Its disadvantage is that it can only detect metal objects, and the detection distance is limited by the conductivity of the object. The disadvantage of the capacitive proximity switch is that it can only detect non-metal objects and is more sensitive to the shape and surface state of the object.

[0057] It can be understood that the drawer 102 is provided with rollers, and the rollers are placed on the guide rail 205 and slide along the guide rail 205. The guide rail 205 can also be provided with guide grooves, and the guide grooves are arranged along the length direction of the guide rail 205. The rollers are placed in the guide grooves to form a limiting fit relationship. Along the direction in which the drawer 102 is pushed into the storage room, the guide grooves are inclined, and the distance between the two guide grooves gradually decreases. When the drawer 102 is pushed into the storage room and reaches the predetermined position, the guide grooves can limit the rollers to prevent the drawer 102 from continuing to move further into the storage room, thereby achieving the limiting effect and helping the first identification member 401 and the second identification member 402 to be aligned with each other.

[0058] It should be noted that in some other embodiments, the storage container can also be other types of structures, such as a storage box. The guide rail 205 can also be replaced by supporting parts such as supporting bosses. Both opposite side walls of the storage room are provided with supporting parts, and the two sides of the storage container are supported by the supporting parts, so that when the bottom wall of the storage container deforms, it bulges downward, prompting the first identification member 401 and the second identification member 402 to approach each other.

[0059] It can be understood that compared with the solution of using a weight sensor to detect the load of the storage container, the detection result of the load identification mechanism 207 in the embodiment of the present invention has only two states, and can quickly judge the load state of the storage container, that is, judge whether the storage container is in an empty / lightly loaded state or in a half / full loaded state, so that the control component 204 can adjust the temperature according to the load state of the storage container. The detection result of the weight sensor continuously returns different weight values to the control component 204, and multiple different determination programs may need to be set, and the overall solution is more complex, increasing the maintenance cost.

[0060] 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, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. Refrigerator, characterized in that, comprising: a cabinet provided with a storage compartment, and support portions are provided on two opposite side walls of the storage compartment; a storage container disposed in the storage compartment, and the side of the storage container abuts against the support portion, so that there is a gap between the bottom wall of the storage compartment and the bottom surface of the storage container; a load identification mechanism disposed between the bottom wall of the storage compartment and the bottom surface of the storage container, and the load identification mechanism includes a first identification member and a second identification member; a control component for controlling the temperature of the storage compartment; wherein, the bottom wall of the storage container can be deformed due to bearing weight, so as to cause the first identification member and the second identification member to approach each other to generate an electrical signal, and the electrical signal is transmitted to the control component to reduce the temperature.

2. The refrigerator according to claim 1, characterized in that, the first identification member is fixed to the bottom wall of the storage compartment, and the second identification member is fixed to the bottom surface of the storage container.

3. The refrigerator according to claim 2, characterized in that, the first identification member is a reed switch, and the second identification member is a magnetic member.

4. The refrigerator according to claim 2 or 3, characterized in that, the second identification member is snap-connected to the storage container.

5. The refrigerator according to claim 1, characterized in that, the refrigerator further includes an air duct assembly disposed at the rear of the storage container, and the air duct assembly is provided with an air outlet and an air return port communicated with the storage container.

6. The refrigerator according to claim 5, characterized in that, the control component is disposed in the air duct assembly, and the control component can sense the space temperature of the storage container and control the air duct assembly to supply air.

7. The refrigerator according to claim 1, characterized in that, the position of the load identification mechanism corresponds to the middle area of the storage container.

8. The refrigerator according to claim 1, characterized in that, the load identification mechanism includes a support member, the support member is disposed on the bottom wall of the storage compartment, the second identification member is telescopically movably disposed on the support member, and the first identification member is fixed to the bottom surface of the storage container and is located below the second identification member.

9. The refrigerator according to claim 1, characterized in that, the support portion is configured as a guide rail, and the storage container slides along the guide rail.

10. The refrigerator according to claim 9, characterized in that, the guide rail is provided with a guide groove, the storage container is provided with rollers cooperating with the guide groove, and along the direction in which the storage container is pushed into the storage compartment, the distance between the two guide grooves gradually decreases.