Intelligent refrigerator
By rationally arranging high-resolution image sensors, weight sensors, and biosensors within the refrigerator's cooling compartment, the problems of traditional refrigerators' limited functionality and unreasonable sensor installation have been solved. This enables intelligent management and safety monitoring of food within the refrigerator, improving detection accuracy and data reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-03-13
AI Technical Summary
Existing refrigerators have limited functions and lack intelligent integration of food management and safety monitoring. The unreasonable installation position of sensors leads to limited detection range, low accuracy and poor reliability.
High-resolution image sensors, high-precision weight sensors, and sensors based on metabolite and immune analysis are installed in the refrigerator compartment, and data is transmitted via a wireless communication module. The sensor locations and installation methods are optimized to meet different functional requirements.
It enables intelligent identification, weight statistics, component analysis, and safety monitoring of food inside the refrigerator, improving detection accuracy and data reliability, and meeting users' needs for intelligent management.
Smart Images

Figure CN121655191A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of refrigerator design technology, and in particular to an intelligent refrigerator. Background Technology
[0002] In existing technologies, traditional refrigerators are mainly used for low-temperature food storage, with relatively simple functions, making it difficult to meet users' intelligent needs for food management, freshness monitoring, and safety assurance. With the improvement of living standards, users are increasingly concerned about the identification of food types, weight statistics, nutritional components, and microbial contamination within the refrigerator. However, existing refrigerators typically lack an integrated structural design capable of achieving these functions. While some improved refrigerators have attempted to integrate sensors to achieve intelligent functions, the sensor installation structure is often poorly designed, using fixed connections. This prevents the sensor positions from being adjusted according to storage needs, limiting the detection range and making it difficult to comprehensively detect food in different locations. Furthermore, the installation positions and detection directions of different types of sensors (such as weight and component detection sensors) are not optimized for their functional characteristics, resulting in low detection accuracy and poor data reliability. Therefore, there is an urgent need for an intelligent refrigerator structural design that can rationally arrange various sensors and ensure their performance. Summary of the Invention
[0003] The present invention aims to provide an intelligent refrigerator, comprising a refrigerator body, multiple sensor components, and a data transmission component; the refrigerator body has at least one refrigerator compartment; the sensor components include an image sensor, a weight sensor, a metabolic sensor, and a biosensor; the image sensor is installed at the top of the refrigerator compartment, and the weight sensor is installed below each shelf in the refrigerator compartment; the metabolic sensor is installed on the side wall of the refrigerator compartment; the biosensor is slidably installed on the rear wall of the refrigerator compartment; the data transmission component includes a wireless communication module and a data interface, the wireless communication module is fixedly installed on the main control board of the refrigerator body, and the image sensor, weight sensor, metabolic sensor, and biosensor are all electrically connected to the data interface via wires, and the data interface is electrically connected to the wireless communication module.
[0004] Furthermore, the image sensor employs a high-resolution camera, the weight sensor employs a high-precision electronic scale sensor, the metabolic sensor is a sensor based on the principle of specific metabolite detection, and the biosensor is a sensor based on the principles of immunoassay or molecular biology.
[0005] Furthermore, a mounting bracket is detachably installed at the top of the refrigerator compartment, and the image sensor is fixedly installed on the mounting bracket. A support plate is provided on the side wall of the refrigerator compartment, and the weight sensor is set on the support strips on the side walls of the refrigerator compartment. A magnetic base for installing a metabolic sensor is provided between every two adjacent partitions inside the refrigerator compartment. The magnetic base is provided with connection contacts for signal transmission. A guide rail is installed vertically on the rear wall of the refrigerator compartment, and the biosensor is slidably installed on the guide rail.
[0006] Furthermore, the mounting bracket includes a horizontal adjustment plate, which is slidably mounted in a groove at the top of the refrigerator compartment, and the image sensor is rotatably mounted on the horizontal adjustment plate.
[0007] Furthermore, the bottom of the partition is provided with a buffer pad corresponding to the support plate, and the buffer pad is made of silicone.
[0008] Furthermore, the guide rail is provided with multiple positioning slots, and the back of the biosensor is provided with an elastic protrusion that cooperates with the positioning slots.
[0009] Furthermore, a sensor protective cover is provided on the inner wall of the refrigerator compartment, and the sensor protective cover is a transparent plate corresponding to the detection end of the sensor.
[0010] Furthermore, the number of weight sensors corresponds to the number of partitions in the refrigerator compartment, with one weight sensor installed at the bottom of each partition, and the output of each weight sensor connected to a data interface.
[0011] Furthermore, the surface of the guide rail is provided with an anti-condensation coating, which is made of polytetrafluoroethylene material.
[0012] The technical solution of this invention involves installing image sensors, weight sensors, metabolic sensors, and biosensors respectively at the top, below each shelf, side walls, and rear walls of the refrigerator's main compartment. These sensors are electrically connected to a wireless communication module fixed to the refrigerator's main control board via a data interface, forming a structured integrated design of sensor and data transmission components. This design effectively solves the shortcomings of existing refrigerators, such as limited functionality, lack of integrated food management and safety monitoring structures, and the unreasonable sensor placement and limited detection range in improved refrigerators. Each sensor is installed in a suitable location within the refrigerator compartment according to its functional characteristics. The image sensor comprehensively captures the appearance of food, the weight sensor accurately counts the weight of food on each shelf, and the metabolic sensor and the slidable biosensor respectively detect food metabolic components and monitor microbial safety. Ultimately, this achieves intelligent identification, weight counting, component analysis, and safety monitoring of food within the refrigerator, meeting users' intelligent food management needs and improving detection accuracy and data reliability. Attached Figure Description
[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 This is another overall structural schematic diagram of the present invention.
[0016] Figure 3 This is a side cross-sectional view of the guide rail in conjunction with the biosensor.
[0017] Explanation of reference numerals in the attached diagram: 1-Refrigerator body, 101-Refrigerator compartment, 2-Image sensor, 3-Metabolic sensor, 4-Biosensor, 5-Weight sensor, 6-Guide rail, 7-Shelf, 8-Bearing partition, 9-Positioning slot, 10-Elastic protrusion, 11-Spring, 12-Signal feedback contact. Detailed Implementation
[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0021] Example 1 like Figures 1-2 As shown, the present invention provides an intelligent refrigerator, including a refrigerator body 1, multiple sensor components and a data transmission component; the refrigerator body 1 has at least one cold storage compartment 101 inside; the sensor components include an image sensor 2, a weight sensor 5, a metabolic sensor 3 and a biosensor 4.
[0022] Image sensor 2 uses a high-resolution camera and is installed at the top inside the refrigerator compartment 101. Specifically, a mounting bracket is detachably installed at the top inside the refrigerator compartment 101. The mounting bracket includes a horizontal adjustment plate, which is slidably installed in a groove at the top of the refrigerator compartment 101. A rotating shaft is provided at the bottom of the horizontal adjustment plate, and image sensor 2 is installed on the rotating shaft of the horizontal adjustment plate, so that image sensor 2 can rotate.
[0023] The weight sensor 5 is a high-precision electronic scale sensor. The number of weight sensors 5 corresponds to the number of partitions 7 in the refrigerator compartment 101. Each partition 7 has a corresponding weight sensor 5 at its bottom, and the output of each weight sensor 5 is connected to a data interface. Supporting strips 8 are provided on both side walls of the refrigerator compartment 101. The weight sensors 5 are mounted on the supporting strips 8. A buffer pad, made of silicone, is provided at the bottom of each partition 7 corresponding to the supporting plate.
[0024] The metabolic sensor 3 is a sensor based on the principle of detecting specific metabolites, and it is installed on the side wall of the refrigerator compartment 101. Inside the refrigerator compartment 101, there is a magnetic base for installing the metabolic sensor 3 between every two adjacent partitions 7. The magnetic base is equipped with connection contacts for signal transmission. When the metabolic sensor 3 is magnetically installed on the magnetic base, the metabolic sensor 3 comes into contact with the connection contacts.
[0025] The biosensor 4 is a sensor based on immunoassay or molecular biology principles. A guide rail 6 is vertically mounted on the rear wall of the refrigerator compartment 101. The biosensor 4 is slidably mounted on the guide rail 6. The surface of the guide rail 6 is coated with an anti-condensation coating made of polytetrafluoroethylene (PTFE), which effectively prevents the formation of condensate in low-temperature environments. Figure 3 As shown, the guide rail 6 is provided with multiple positioning slots 9, and each positioning slot is provided with a signal feedback contact 12. The back of the biosensor 4 is provided with an elastic protrusion 10 that cooperates with the positioning slot. The elastic protrusion 10 is able to be engaged in the positioning slot 9 by the elastic force of the spring 11. The elastic protrusion 10 is always in communication with the biosensor 4 to meet the signal and electrical connection requirements. On the one hand, the biosensor 4 achieves height position fixation by engaging with the positioning slot through the elastic protrusion. On the other hand, the contact of the elastic protrusion contacts the signal feedback contact in the corresponding positioning slot to transmit signals.
[0026] The data transmission components include a wireless communication module and a data interface. The wireless communication module uses both Wi-Fi and Bluetooth, and is fixedly mounted on the main control board of the refrigerator body 1. Image sensor 2, weight sensor 5, metabolic sensor 3, and biosensor 4 are all electrically connected to the data interface via wires, and the data interface is electrically connected to the wireless communication module. The data interface uses a 24-pin aviation connector and connects to the wireless communication module via a 16-core ribbon cable. The main control board of the refrigerator body 1 also has a sensor junction box. The wires from each sensor are collected in the junction box through pre-designed wire channels on the inner wall of the refrigerator, and then connected to the data interface after being organized.
[0027] In order to protect the sensors, a protective cover corresponding to each sensor can be installed on the inner wall of the cold storage compartment 101. The sensor protective cover is a transparent plate corresponding to the detection end of the sensor.
[0028] The working process of this embodiment is as follows: When the user puts food into the refrigerator, the image sensor 2 can clearly capture the appearance of the food; the weight sensor 5 senses the weight change of the food in the drawer through the support plate and outputs the weight data in real time; the metabolic sensor 3 contacts the air around the food through the detection end to analyze the metabolic components therein; the biosensor 4 can adjust its position according to the height of the food (manual adjustment) and periodically collect air samples in the refrigerator for microbial detection. The data collected by each sensor is processed by the junction box and transmitted to the wireless communication module through the data interface, and then sent by the wireless communication module to the data processing center for further processing.
[0029] Example 2 In order to enable multi-angle adjustment of image sensor 2, an angle adjustment seat can be set on the horizontal adjustment plate. The angle adjustment seat is hinged to the horizontal adjustment plate through a damping shaft, which enables the angle adjustment of image sensor 2 so that the lens faces the center of the inner cavity of the refrigerator compartment 101. The rotation of the adjustment seat is manually adjusted.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A smart refrigerator, characterized in that, The refrigerator includes a main body, multiple sensor components, and a data transmission component. The main body has at least one refrigerator compartment. The sensor components include an image sensor, a weight sensor, a metabolic sensor, and a biosensor. The image sensor is mounted at the top of the refrigerator compartment, and the weight sensor is located below each shelf inside the refrigerator compartment. The metabolic sensor is mounted on the side wall of the refrigerator compartment. The biosensor is slidably mounted on the rear wall of the refrigerator compartment. The data transmission component includes a wireless communication module and a data interface. The wireless communication module is fixedly mounted on the main control board of the refrigerator body. The image sensor, weight sensor, metabolic sensor, and biosensor are all electrically connected to the data interface via wires, and the data interface is electrically connected to the wireless communication module.
2. The intelligent refrigerator according to claim 1, characterized in that, The image sensor uses a high-resolution camera, the weight sensor uses a high-precision electronic scale sensor, the metabolic sensor is a sensor based on the principle of detecting specific metabolites, and the biosensor is a sensor based on the principles of immunoassay or molecular biology.
3. The intelligent refrigerator according to claim 2, characterized in that, A mounting bracket is detachably installed at the top of the refrigerator compartment, and the image sensor is fixedly installed on the mounting bracket. A support plate is provided on the side wall of the refrigerator compartment, and the weight sensor is set on the support strips on the side walls of the refrigerator compartment. A magnetic base for installing a metabolic sensor is provided between every two adjacent partitions inside the refrigerator compartment. The magnetic base is provided with connection contacts for signal transmission. A guide rail is installed vertically on the rear wall of the refrigerator compartment, and the biosensor is slidably installed on the guide rail.
4. The intelligent refrigerator according to claim 3, characterized in that, The mounting bracket includes a horizontal adjustment plate, which is slidably mounted in a groove at the top of the refrigerator compartment, and the image sensor is rotatably mounted on the horizontal adjustment plate.
5. The intelligent refrigerator according to claim 3, characterized in that, The bottom of the partition is provided with a buffer pad corresponding to the support plate, and the buffer pad is made of silicone.
6. The intelligent refrigerator according to claim 3, characterized in that, The guide rail is provided with multiple positioning slots, and the back of the biosensor is provided with an elastic protrusion that cooperates with the positioning slots.
7. The intelligent refrigerator according to claim 1, characterized in that, The inner wall of the refrigerator compartment is equipped with a sensor protective cover, and the sensor protective cover is a transparent plate corresponding to the detection end of the sensor.
8. The intelligent refrigerator according to claim 3, characterized in that, The number of weight sensors corresponds to the number of shelves in the refrigerator compartment. Each shelf has a corresponding weight sensor at its bottom, and the output of each weight sensor is connected to a data interface.
9. The intelligent refrigerator according to claim 3, characterized in that, The surface of the guide rail is provided with an anti-condensation coating, which is made of polytetrafluoroethylene.