Refrigerator

Abstract

The invention discloses a refrigerator, and relates to the technical field of refrigeration equipment, a refrigerator body is provided with a supporting part, a storage container is arranged in a storage chamber, the side edge of the storage container is provided with a bearing part, the bearing part abuts against the supporting part, and the side wall of the storage container is provided with a through hole; the elastic mechanism is arranged between the supporting part and the bearing part. The elastic mechanism is additionally arranged between the bearing part of the storage container and the supporting part of the storage chamber, the detection sensors are arranged on the two sides of the storage container, and when the load weight of the storage container exceeds the rated load capacity, the elastic mechanism deforms, so that the detection sensors detect objects in the storage container instead of detecting the side wall of the storage container; and an electric signal is generated and transmitted to a control part, a rapid temperature pulling program is triggered, the temperature control temperature is lowered, and the refreshing time of the food materials is prolonged under the condition that the large load capacity is better guaranteed.

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 meat and fresh food ingredients has gradually shifted from long-term storage to short-term storage. In recent years, various refrigerator companies have developed fresh-keeping functions for short-term preservation of meat, such as zero-degree fresh-keeping and micro-freezing fresh-keeping. Compared with traditional frozen fresh-keeping, the short-term fresh-keeping function does not require thawing, and the user experience is better. However, there are also deficiencies. The fresh-keeping period is short, especially under the condition of a large drawer load, and the fresh-keeping 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 fresh-keeping period of food ingredients under the condition of a large load.

[0004] The refrigerator according to the first aspect embodiment of the present invention includes: a box body, a storage container, a detection sensor, an elastic mechanism, and a control component. The box body is provided with a storage compartment, and support parts are provided on two opposite side walls of the storage compartment; the storage container is arranged in the storage compartment, a bearing part is provided on the side of the storage container, the bearing part abuts against the support part, and through holes are provided on the side wall of the storage container; the detection sensor is arranged on the side wall of the storage compartment, and the detection sensor is used to detect the characteristics of an object and convert them into electrical signals; the elastic mechanism is arranged between the support part and the bearing part; the control component is used to control the temperature of the storage compartment; wherein, the refrigerator has a first state and a second state. In the first state, the detection sensor detects the side wall of the storage container; in the second state, the elastic mechanism deforms due to the increase in the load of the storage container, thereby causing the storage container to descend, and the detection sensor detects the items in the storage container through the through holes and generates an electrical signal transmitted to the control component to reduce the temperature.

[0005] The refrigerator according to the embodiment of the present invention has at least the following beneficial effects: By adding an elastic mechanism between the bearing part of the storage container and the support part of the storage compartment, and arranging detection sensors on both sides of the storage container, when the load weight of the storage container exceeds the rated load, the elastic mechanism deforms, causing the detection sensor to change from detecting the side wall of the storage container to detecting the items in the storage container, and generating an electrical signal transmitted to the control component, triggering a rapid temperature reduction program and lowering the controlled temperature, better ensuring the extension of the fresh-keeping period of food ingredients under the condition of a large load.

[0006] According to some embodiments of the present invention, the detection sensor is a temperature measurement sensor or a distance measurement sensor.

[0007] According to some embodiments of the present invention, the detection sensor is an infrared temperature sensor, a microwave sensor or an ultrasonic sensor.

[0008] According to some embodiments of the present invention, the support portion is configured as a guide rail, the guide rail includes a fixing member, a ball and a movable member, the fixing member is fixed to the side wall of the storage compartment, the movable member is movably connected to the fixing member through the ball, the storage container is connected to the movable member, and the transmitting element is fixed to the movable member.

[0009] According to some embodiments of the present invention, the movable member is provided with a connecting boss, and the bearing portion is provided with a connecting hole that cooperates with the connecting boss.

[0010] 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 that communicate with the storage container.

[0011] 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 duct assembly to supply air.

[0012] According to some embodiments of the present invention, the elastic mechanism includes an elastic member and a movable cover, the bearing portion is provided with an installation groove, the movable cover and the elastic member are connected and installed in the installation groove, and the movable cover abuts against the support portion.

[0013] According to some embodiments of the present invention, the elastic mechanism further includes a fixed seat, the fixed seat is installed in the installation groove, the fixed seat is provided with a guiding hole, and at least a part of the movable cover is located in the guiding hole.

[0014] According to some embodiments of the present invention, the side wall of the fixed seat is provided with a limiting hole, and the movable cover is provided with a limiting protrusion located in the limiting hole.

[0015] According to some embodiments of the present invention, along a direction perpendicular to the moving direction of the movable cover, the side wall of the installation groove is provided with an opening communicating with the installation groove, and the opening is configured such that the fixed seat can be inserted into the installation groove from the opening.

[0016] According to some embodiments of the present invention, the outer side wall of the fixed seat is provided with a limiting portion, and the limiting portion is located in the opening to limit the fixed seat from disengaging from the installation groove along the moving direction of the movable cover.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0018] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic diagram of the refrigerator according to the embodiment of the present invention;

[0020] Figure 2 is Figure 1 a schematic diagram of the refrigerator shown after removing the door body and drawers;

[0021] Figure 3 is a schematic diagram of the positions of the drawer, the detection sensor, and the elastic mechanism;

[0022] Figure 4 is Figure 1 a cross-sectional view of an embodiment of the refrigerator shown;

[0023] Figure 5 is Figure 4 an enlarged view of part A shown;

[0024] Figure 6 is Figure 4 an exploded view of the drawer, the guide rail, and the elastic mechanism shown.

[0025] Reference Numerals:

[0026] 101, the cabinet; 102, the drawer;

[0027] 201, the air duct housing; 202, the air outlet; 203, the air return opening; 204, the control component; 205, the guide rail; 206, the cover plate; 207, the detection sensor;

[0028] 301, the elastic mechanism; 302, the bearing part; 303, the through hole;

[0029] 401, the door body; 402, the refrigerating compartment; 403, the variable temperature compartment; 404, the freezing compartment;

[0030] 501, the elastic member; 502, the movable cover; 503, the cylindrical part; 504, the flat part; 505, the fixed seat; 506, the guide hole; 507, the limiting hole; 508, the limiting protrusion; 509, the limiting part;

[0031] 601, the connecting hole; 602, the mounting groove; 603, the opening; 604, the fixing member; 605, the movable member; 606, the connecting boss. Detailed Embodiments

[0032] Embodiments of the present invention will be described in detail below. 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 having the same or similar functions throughout. The embodiments described below by referring 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.

[0033] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It 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.

[0034] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the recited number, and above, below, within, etc. are understood as including the recited number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and 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.

[0035] 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.

[0036] 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 preservation functions for short-term preservation of meat, such as zero-degree preservation, micro-freezing preservation, etc. Compared with traditional frozen preservation, the short-term preservation function does not require thawing, and the user experience is better. However, there are also some other deficiencies, such as short preservation period and the preservation effect being greatly reduced when the drawer load is large. Among them, the decline in the preservation effect has become one of the pain points for users.

[0037] Based on this, the embodiments of the present invention provide a refrigerator. By adding an elastic mechanism and a detection sensor between the bearing part of the storage container and the support part of the storage compartment, when the load weight of the storage container exceeds the rated load, the elastic mechanism deforms, causing the detection sensor to change from detecting the side wall of the storage container to detecting the items inside the storage container, and generating an electrical signal to be transmitted to the control component, triggering a rapid temperature reduction program and lowering the temperature control, so as to better ensure the extension of the preservation period of food ingredients when the load is large.

[0038] The following further elaborates on the embodiments of the present invention with reference to the accompanying drawings.

[0039] Refer toFigures 1 to 4 As shown, it can be understood that the refrigerator includes a cabinet 101 and a door 401. The main functions of the cabinet 101 and the door 401 are to isolate the internal and external air and ensure a low-temperature environment inside the refrigerator. The inside of the cabinet 101 is made of highly efficient heat-insulating materials such as polyurethane, etc., which can effectively maintain the low-temperature environment inside the cabinet and reduce energy consumption. The cabinet 101 includes side plates, a back plate, upper / middle / lower beams, a liner, a bottom plate assembly, etc. Storage compartments such as a refrigerating compartment 402, a variable-temperature compartment 403, or a freezing compartment 404 are formed inside the cabinet 101. The door 401 is connected to the cabinet 101 and can close the openings of storage compartments such as the refrigerating compartment 402, the variable-temperature compartment 403, and the freezing compartment 404, making them relatively airtight spaces. A sealing strip is provided inside the door 401 to ensure the sealing performance of the cabinet 101, 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.

[0040] It can be understood that the main function of the refrigerating compartment 402 is to preserve and refrigerate food. By maintaining a low-temperature environment, the refrigerating compartment can extend the shelf life of food and maintain the freshness and taste of food. The temperature of the refrigerating compartment 402 can be adjusted as needed. Generally speaking, the suitable temperature of the refrigerating compartment 402 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 402 can store various foods that need to be refrigerated, such as fruits, vegetables, beverages, dairy products, etc.

[0041] The main function of the variable-temperature compartment 403 is to provide flexible storage space. The variable-temperature compartment can change its temperature according to the needs of users, so as to meet the storage needs of different foods. The temperature of the variable-temperature compartment 403 can also be adjusted through the temperature controller or touch screen on the refrigerator door. Users can set the temperature within different ranges as needed, such as 0°C to -10°C or -7°C to -18°C, etc. The variable-temperature compartment 403 can store various foods that need to be stored at special temperatures, such as meats, fishes, cold drinks, etc.

[0042] The main function of the freezing compartment 404 is to quickly freeze food at a very low temperature to extend the shelf life of food and maintain the nutritional value of food. The temperature of the freezing compartment 404 is generally low, usually below -18°C. Users can adjust the temperature through the temperature controller or touch screen on the refrigerator door. The freezing compartment 404 can store various foods that need to be frozen, such as meats, seafood, ice cream, etc.

[0043] Refer to Figure 2 and Figure 4As shown, it can be understood that the refrigerator further includes an air duct assembly, which mainly consists 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, and the fan and the motor cause the cold air to flow within the air duct housing 201. The main function of the air duct assembly is to guide the cold air to circulate inside the refrigerator, thereby taking away the heat from the inside of the refrigerator to achieve a 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.

[0044] Referring to Figure 1 and Figure 4 As shown, it can be understood that the refrigerator further includes a storage container, which 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 cylindrical body with an open mouth, or it can have a closable lid or door to make it closed, so as to ensure that the internal items are not affected by the external environment, such as dust, moisture, etc. Hereinafter, the storage container being the drawer 102 is taken as an example for illustration.

[0045] Referring to Figure 2 and Figure 3 As shown, it can be understood that the drawer 102 is located in the variable temperature compartment 403 and can achieve functions such as zero-degree fresh-keeping and slightly frozen fresh-keeping. Compared with traditional frozen fresh-keeping, the short-term fresh-keeping function does not require thawing, and the user experience is better. 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 403 is higher than the set temperature, the air duct assembly is opened to allow cold air to enter the variable temperature compartment 403 to cool the variable temperature compartment 403 until the temperature in the variable temperature compartment 403 reaches the set temperature, and then the air duct assembly is closed. And this set temperature is constant, so that the cooling rate of the variable temperature compartment 403 is also basically constant. When the load of the drawer 102 is large, the cooling rate of the variable temperature compartment 403 is slow and cannot reach the set temperature within the expected time, resulting in a significant reduction in the fresh-keeping effect, which becomes one of the pain points for users.

[0046] Referring to Figure 2 As shown, it can be understood that the cabinet 101 is further provided with a guide rail 205, that is, the support portion 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 inside the refrigerating compartment 402 or the variable temperature compartment 403, facilitating the user to pick up and place food ingredients, and sliding back into the inside of the refrigerating compartment 402 or the variable temperature compartment 403 after the user has completed picking up and placing the food ingredients.

[0047] Referring to Figure 2As shown, it can be understood that a cover plate 206 is provided between the refrigerating compartment 402 and the variable-temperature compartment 403. 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 402 and the variable-temperature compartment 403, so as to better control the temperature of the drawer 102.

[0048] Referring to Figures 2 to 6 As shown, it can be understood that the refrigerator further includes a detection sensor 207, an elastic mechanism 301 and a control component 204. The elastic mechanism 301 is arranged between the guide rail 205 of the variable-temperature compartment 403 and the bearing part 302 of the drawer 102. The bearing part 302 is arranged on the side of the storage container, and the number of the bearing parts 302 is at least two, corresponding to the positions of the two guide rails 205 respectively. The detection sensor 207 is used to judge whether to activate the rapid cooling control and transmit a signal to the control component 204. The elastic mechanism 301 is used to control whether the detection sensor 207 is triggered by a signal. Specifically, it controls whether the detection sensor 207 is turned on or off according to the load capacity of the drawer 102. For example, when the load capacity of the drawer 102 is small, the elastic mechanism 301 supports the drawer 102 to keep a proper distance between the guide rail 205 and the bearing part 302 of the drawer 102, and the detection sensor 207 does not generate a control signal. When the load capacity of the drawer 102 is large, the drawer 102 is pressed down due to its weight, causing the elastic mechanism 301 to be compressed, and then shortening the distance between the guide rail 205 and the bearing part 302 of the drawer 102, and the load identification mechanism generates a control signal. The control component 204 determines the target temperature control according to the received signal, that is, it can quickly reduce the temperature of the food materials and set a proper target temperature control when the load of the food materials in the drawer 102 is large and the temperature of the just-placed food materials is low, which can meet the food preservation requirements of the drawer 102 under different load conditions, realize the precise temperature control of the drawer 102, and have a good preservation effect.

[0049] 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, which 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 thermoelectric effect principle. 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 load of the food materials in the drawer 102 is large and the temperature of the just-placed food materials is low, the detection sensor 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, thereby increasing the input of cold air and making the temperature in the drawer 102 drop rapidly.

[0050] Referring to Figure 4 and Figure 6 as shown, it can be understood that the detection sensor 207 is located on one side of the drawer 102. The detection sensor 207 emits a signal to detect and measure the target object and convert it into an electrical signal. Or the detection sensor 207 recognizes the characteristics of the object itself and converts it into an electrical signal. When the detection sensor 207 detects the items in the drawer 102, it generates an electrical signal and transmits it to the control component 204. When the detection sensor 207 detects the side wall of the drawer 102, it generates another electrical signal different from the previous one. Since the distance from the side wall of the drawer 102 to the detection sensor 207 is different from the distance from the items in the drawer 102 to the detection sensor 207, the detection sensor 207 can distinguish the above electrical signals by measuring the distance. Since the temperature of the side wall of the drawer 102 is also different from the temperature of the items just placed in the drawer 102 (the temperature of the items just placed in the drawer 102 is generally above 0°C, while the outer wall surface of the drawer 102 is close to the set temperature inside the drawer 102 and is below 0°C, and the temperature difference between the two is large), the detection sensor 207 can also distinguish the above electrical signals by measuring the temperature. Therefore, the detection sensor 207 can be a temperature measurement sensor or a distance measurement sensor.

[0051] It can be understood that the upper end of the elastic mechanism 301 abuts against the bearing part 302, and the lower end of the elastic mechanism 301 abuts against the guide rail 205. When the drawer 102 is placed on the guide rail 205, the elastic mechanism 301 produces a certain amount of deformation due to the weight of the drawer 102 itself and the weight of the items it loads. When the items placed in the drawer 102 are lighter, the deformation of the elastic mechanism 301 is less, and the drawer 102 is within the detection range between the transmitting element and the receiving element. At this time, the variable temperature compartment 403 cools the drawer 102 according to the first set temperature. When the items placed in the drawer 102 are heavier, the deformation of the elastic mechanism 301 is more, and the bearing part 302 moves downward a greater distance, causing the drawer 102 to move out of the detection range between the transmitting element and the receiving element. At this time, the variable temperature compartment 403 cools the drawer 102 according to the second set temperature, and the second set temperature is less than the first set temperature.

[0052] 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.

[0053] Generally, when the drawer 102 is arranged in the variable temperature compartment 403, the target temperature control temperature of the drawer 102 can be set to -1°C. When the items placed in the drawer 102 are light (for example, empty / lightly loaded), the air duct assembly is controlled to supply cold air to the drawer 102 at a 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 down, and they can be cooled down to the target temperature control temperature within the expected time, which is relatively energy-saving. When the items placed in the drawer 102 are heavy (for example, half-loaded / full-loaded), the detection sensor 207 determines that rapid cooling control needs to be activated, and the control component 204 controls the air duct assembly to supply cold air to the drawer 102 at a 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 larger, and the amount of cold air supplied 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 rapid cooling control can be exited.

[0054] 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.

[0055] It can be understood that in the related art, in order to enable the drawer 102 to slide, a guide groove is provided on the top surface of the guide rail 205, and the drawer 102 is provided with rollers, which are placed in the guide groove and slide along the guide rail 205. In this solution, the rollers play a supporting role, and the elastic mechanism 301 in this embodiment also plays a supporting role, so that the detection sensor 207 can work properly through the change of weight. Therefore, the above solution using rollers conflicts with the solution of this embodiment, and the solution of this embodiment cannot be directly applied to the existing technical solution.

[0056] Referring to Figure 6 As shown, it can be understood that the guide rail 205 includes a fixing member 604, a ball, and a movable member 605. Both the fixing member 604 and the movable member 605 can be set as sheet metal parts. The movable member 605 wraps three sides of the circumference of the fixing member 604. The other side of the fixing member 604 is fixedly connected to the side wall of the variable temperature chamber. The ball is sandwiched between the fixing member 604 and the movable member 605, so that the movable member 605 can slide along the fixing member 604, and the friction is reduced by the ball, making the sliding smoother. The drawer 102 is connected to the movable member 605, so that the drawer 102 can slide together with the movable member 605, thereby realizing entering or moving out of the variable temperature chamber, which is convenient for users. In addition, the transmitting element is fixed to the movable member 605, so as to keep the relative position between the transmitting element and the drawer 102 unchanged, and further keep the relative position between the transmitting element and the receiving element unchanged, so that the detection sensor 207 can work properly.

[0057] Referring to Figure 6 as shown, it can be understood that the movable member 605 is provided with a connecting boss 606, and the bearing portion 302 is provided with a connecting hole 601 that cooperates with the connecting boss 606. When the drawer 102 is placed on the movable member 605 from top to bottom, the connecting hole 601 of the bearing portion 302 is sleeved on the connecting boss 606 of the movable member 605, so that the pushing or pulling action of the drawer 102 can make the movable member 605 move together with the drawer 102. The drawer 102 moves upward until the connecting hole 601 of the bearing portion 302 disengages from the connecting boss 606 of the movable member 605, and the drawer 102 can be taken out separately for easy cleaning and maintenance.

[0058] Referring to Figure 4 and Figure 6 as shown, it can be understood that the side wall of the drawer 102 is provided with a through hole 303, and the detection sensor 207 detects the items in the drawer 102 through the through hole 303. When the drawer 102 is empty / lightly loaded, the position of the drawer 102 is relatively high, and the detection sensor 207 is facing the side wall of the drawer 102 to detect the drawer 102. That is, the refrigerator has a first state, and in the first state, the detection sensor 207 detects the side wall of the drawer 102. When the drawer 102 is half-loaded / full-loaded, the position of the drawer 102 is relatively low, and the detection sensor 207 is facing the through hole 303 of the drawer 102 to detect the items in the drawer 102. That is, the refrigerator has a second state, and in the second state, the detection sensor 207 detects the items in the drawer 102 and converts the detection result into an electrical signal and transmits it to the control component 204.

[0059] It can be understood that in some embodiments, the detection sensor 207 is an infrared temperature measurement sensor. The infrared temperature measurement sensor uses the infrared radiation emitted by an object to measure the temperature. The working principle of the infrared temperature measurement sensor is based on the absorption and emission characteristics of an object to infrared radiation. By measuring the infrared radiation energy emitted by an object and converting it into an electrical signal, the temperature of the object can be calculated. Infrared radiation is an electromagnetic wave, and its wavelength range is between 0.7 micrometers and 1000 micrometers. According to the different temperatures of an object, infrared radiation of different intensities and frequencies will be generated. The infrared temperature measurement sensor senses the infrared radiation energy emitted by an object and uses an infrared detector to convert the infrared radiation into an electrical signal. The infrared temperature measurement sensor senses the infrared rays radiated by an object and then converts it into a temperature value. This sensor can measure a very high temperature range and can also measure very small target objects.

[0060] It should be noted that the detection sensor 207 can also be a microwave sensor. The working principle of the microwave sensor is to utilize the characteristics of microwave signals to detect and measure target objects by transmitting and receiving microwave signals. When the microwave signal encounters a target object, phenomena such as reflection, scattering, or interference will occur. A part of the signal will be received by the receiver and then transmitted back to the signal processor for processing. According to the processing results of the signal processor, information such as the distance, speed, shape, and size of the object can be obtained.

[0061] In addition to microwave sensors, there are other types of non-contact sensors, such as laser sensors, ultrasonic sensors, infrared sensors, etc. These sensors use different physical principles to achieve non-contact measurement and are suitable for different application scenarios and measurement ranges.

[0062] Referring to Figure 5 and Figure 6 As shown, it can be understood that the elastic mechanism 301 includes an elastic member 501 and a movable cover 502. The bearing portion 302 is provided with an installation groove 602. The elastic member 501 is installed in the installation groove 602. One end of the elastic member 501 remains relatively stationary with respect to the bearing portion 302, and the other end of the elastic member 501 is connected to the movable cover 502. The movable cover 502 can extend out of the installation groove 602 and can also retract into the installation groove 602. The movable cover 502 abuts against the guide rail 205, thereby realizing the support function. The interior of the movable cover 502 is a hollow structure, forming a cavity. The upper end of the movable cover 502 is an open end, and the open end communicates with the cavity. The lower end of the movable cover 502 is a closed end, and the closed end closes the upper end of the cavity. Specifically, the movable cover 502 includes a cylindrical portion 503 and a flat portion 504. The cross-section of the cylindrical portion 503 is annular, and the flat portion 504 is connected to the lower end of the cylindrical portion 503. The movable cover 502 can increase the contact area with the guide rail 205, thereby keeping the drawer 102 stable. Moreover, during the movement of the drawer 102, the frictional force between the movable cover 502 and the guide rail 205 is smaller than the frictional force between the elastic member 501 and the guide rail 205, thereby reducing the resistance received during the movement of the drawer 102 and improving the user experience. The position of the installation groove 602 plays a positioning role to ensure the positions of the movable cover 502 and the elastic member 501. The side wall of the installation groove 602 protects the elastic member 501, reducing the action of inclined or lateral forces on the elastic member 501 and maintaining the correct direction of the elastic member 501. For some occasions where it is necessary to prevent the elastic member 501 from loosening, a locking mechanism, such as a bolt, a clamping groove, etc., can be added at the end of the elastic member 501 to fix the position of the elastic member 501.

[0063] It can be understood that the elastic member 501 is constructed as a spring. The elastic member 501 can also be structures such as an elastic washer or elastic clay.

[0064] Referring to Figure 5 andFigure 6 As shown, it can be understood that the elastic mechanism 301 further includes a fixed seat 505. The fixed seat 505 is installed in the installation groove 602. One end of the elastic member 501 is fixed to the fixed seat 505. A guiding hole 506 is formed inside the fixed seat 505. The orifice of the guiding hole 506 faces the guide rail 205. The cross-section of the fixed seat 505 is annular. At least part of the movable cover 502 is located in the guiding hole 506. The guiding hole 506 guides the movable cover 502 to move in the up and down directions. The fixed seat 505, the elastic member 501 and the movable cover 502 of the elastic mechanism 301 can be regarded as a whole, which is convenient for installation, disassembly and replacement. The guiding hole 506 can guide the moving direction of the movable cover 502, ensure that the movable cover 502 moves on the correct track, and avoid deviation or shaking. The guiding hole 506 can absorb the vibration and impact generated during the movement of the movable cover 502, improving the smoothness and accuracy of the movement. The guiding hole 506 can serve as a channel for lubricating oil or grease to provide lubrication for the movable cover 502, reducing friction and wear.

[0065] Referring to Figure 5 As shown, it can be understood that a limiting hole 507 is provided on the side wall of the fixed seat 505. The limiting hole 507 can be an elongated hole. The length direction of the elongated hole coincides with the up and down directions. The movable cover 502 is provided with a limiting protrusion 508. The limiting protrusion 508 is located on the side surface of the movable cover 502. The limiting protrusion 508 extends into the limiting hole 507. When the limiting protrusion 508 moves to the upper end of the limiting hole 507, the movable cover 502 cannot move upward continuously, preventing the elastic member 501 from being over-compressed and failing. When the limiting protrusion 508 moves to the lower end of the limiting hole 507, the movable cover 502 cannot move downward continuously, preventing the movable cover 502 from detaching from the fixed seat 505. In other words, the cooperation between the limiting protrusion 508 and the limiting hole 507 completes the up and down direction limitation of the movable cover 502.

[0066] It can be understood that when the items placed in the drawer 102 are lighter, the deformation of the elastic member 501 is less. The drawer 102 is kept at a higher position under the elastic force of the elastic member 501, and the limiting protrusion 508 is close to the lower end of the limiting hole 507. When the items placed in the drawer 102 are heavier, the deformation of the elastic member 501 is more. That is, the compression amount of the elastic member 501 is larger, which prompts the movable cover 502 and the fixed seat 505 to approach each other against the elastic force of the elastic member 501, and the limiting protrusion 508 is close to the upper end of the limiting hole 507.

[0067] It can be understood that an inclined surface is provided on the upper part of the limit protrusion 508. In the direction from top to bottom, the inclined surface is inclined towards the limit hole 507, that is, the upper end of the inclined surface is located in the guide hole 506 or slightly enters the limit hole 507, and the lower end of the inclined surface extends beyond the guide hole 506 and enters the limit hole 507. When installing the movable cover 502, the upper end of the movable cover 502 is inserted into the guide hole 506. The width of the upper end of the movable cover 502 is smaller than the diameter of the guide hole 506, so it can be easily installed. Subsequently, the contact point between the limit protrusion 508 and the fixed seat 505 descends along the inclined surface. The diameter of the limit protrusion 508 of the movable cover 502 is larger than that of the guide hole 506, and the movable cover 502 gradually contracts and deforms inward. And when the limit protrusion 508 enters the limit hole 507, the movable cover 502 expands outward and returns to its original state. A stepped structure is formed between the lower part of the limit protrusion 508 and the lower end of the movable cover 502, which can prevent the limit protrusion 508 from automatically disengaging from the limit hole 507.

[0068] Referring Figure 6 As shown, it can be understood that an opening 603 is provided on the side wall of the installation groove 602. The opening 603 communicates with the installation groove 602. The opening 603 is located on the installation groove 602 along the direction perpendicular to the moving direction of the movable cover 502. The opening 603 penetrates the side wall of the installation groove 602, so that the fixed seat 505 can be installed into the installation groove 602 from the opening 603, which is convenient for the operator to operate.

[0069] Referring Figure 5 and Figure 6 As shown, it can be understood that a limiting portion 509 is provided on the outer side wall of the fixed seat 505. The limiting portion 509 enlarges the radial dimension of the fixed seat 505. The opening 603 can accommodate the limiting portion 509, so that the fixed seat 505 together with the limiting portion 509 can be installed into the bearing portion 302 from the opening 603. After installation, the limiting portion 509 is located in the opening 603, and the opening 603 restricts the movement of the limiting portion 509 in the up and down direction, thereby restricting the fixed seat 505 from disengaging from the installation groove 602 along the moving direction of the movable cover 502, so that the fixed seat 505 and the bearing portion 302 remain relatively fixed, and the connection is more reliable. Since the elastic mechanism 301 is stressed in the moving direction of the movable cover 502 and is easy to move its position, by setting the cooperation of the limiting portion 509 and the opening 603, the position of the fixed seat 505 can be well fixed, preventing the fixed seat 505 from shifting, and further ensuring that the compression amount of the elastic member 501 matches the recognition accuracy of the detection sensor 207.

[0070] It should be noted that in some other embodiments, the storage container may also be of other types of structures, such as a storage box. The guide rail 205 may also be replaced by a support portion such as a support boss. Support portions are provided on two opposite side walls of the storage compartment, and the two sides of the storage container are supported by the support portions. The storage container is directly placed downward on the support portions, or the storage container is directly picked up upward and then taken out of the storage compartment through the opening of the storage compartment.

[0071] It can be understood that the detection sensor 207 in the embodiment of the present invention, compared with the solution of using a weight sensor to detect the load of the storage container, has only two states in the detection result of the detection sensor 207, and can quickly judge the load state of the storage container, that is, judge whether the storage container is in an empty / underloaded state or in a half-loaded / full-loaded state, so that the control component 204 adjusts 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.

[0072] Moreover, when the detection sensor 207 directly detects the temperature of the items in the storage container, the temperature inside the storage container can be adjusted more accurately. The control component 204 only detects the temperature of the part of the air duct assembly communicating with the storage container. When the items are just put into the storage container from the outside, the temperature of the items is different from the temperature of the storage container. For example, the temperature of the items outside is 20°C, while the temperature of the storage container is -1°C. After adding the items, the storage container reaches a full-loaded state. The detection sensor 207 detects the temperature of the items and transmits an electrical signal to the control component 204. The control component 204 controls the air duct assembly to supply cold air to the drawer 102 at a set temperature of -5°C. The difference between the current temperature of the drawer 102, which is -1°C, and the set temperature of -5°C is large, and the cold air supply amount to the storage container will also increase, so that the temperature of the items inside the storage container can drop rapidly. When the detection sensor 207 detects that the surface temperature of the items drops to -1°C, the rapid cooling control can be exited. If a weight sensor is used, only the required time can be roughly estimated, and then the rapid cooling control is exited after reaching the preset time, and the control accuracy will be lower, and it is easy to make the temperature of the items too high or too low.

[0073] The embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

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, a bearing portion is provided on a side of the storage container, the bearing portion abuts against the support portion, and through holes are provided on a side wall of the storage container; a detection sensor disposed on a side wall of the storage compartment, the detection sensor is used for detecting characteristics of an object and converting them into electrical signals; an elastic mechanism disposed between the support portion and the bearing portion; a control component for controlling the temperature of the storage compartment; wherein the refrigerator has a first state and a second state. In the first state, the detection sensor detects the side wall of the storage container. In the second state, the elastic mechanism deforms due to an increase in the load of the storage container, thereby causing the storage container to descend. The detection sensor detects articles in the storage container through the through holes and generates an electrical signal transmitted to the control component to lower the temperature.

2. The refrigerator according to claim 1, characterized in that, the detection sensor is a temperature measurement sensor or a distance measurement sensor.

3. The refrigerator according to claim 1, characterized in that, the detection sensor is an infrared temperature measurement sensor, a microwave sensor or an ultrasonic sensor.

4. The refrigerator according to claim 1, characterized in that, the support portion is configured as a guide rail, the guide rail includes a fixing member, a ball and a movable member. The fixing member is fixed to the side wall of the storage compartment, the movable member is movably connected to the fixing member through the ball, the storage container is connected to the movable member, and a transmitting element is fixed to the movable member.

5. The refrigerator according to claim 4, characterized in that, the movable member is provided with a connecting boss, and the bearing portion is provided with a connecting hole matching with the connecting boss.

6. 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.

7. The refrigerator according to claim 6, 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.

8. The refrigerator according to claim 1, characterized in that, the elastic mechanism includes an elastic member and a movable cover. The bearing portion is provided with an installation groove, the movable cover and the elastic member are connected and installed in the installation groove, and the movable cover abuts against the support portion.

9. The refrigerator according to claim 8, characterized in that, the elastic mechanism further includes a fixing seat installed in the installation groove. The fixing seat is provided with a guiding hole, and at least a part of the movable cover is located in the guiding hole.

10. The refrigerator according to claim 9, characterized in that, a limiting hole is provided on a side wall of the fixing seat, and a limiting protrusion located in the limiting hole is provided on the movable cover.

11. The refrigerator according to claim 9 or 10, characterized in that, Along a direction perpendicular to the moving direction of the movable cover, a side wall of the installation groove is provided with an opening communicating with the installation groove, and the opening is configured such that the fixed seat can be inserted into the installation groove from the opening.

12. The refrigerator according to claim 11, wherein, a limiting portion is provided on an outer side wall of the fixed seat, and the limiting portion is located within the opening to limit the fixed seat from disengaging from the installation groove along the moving direction of the movable cover.

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