Article storage refrigerated cabinet
By using a rotating mechanism and RFID tags for storage compartments, the problem of inconvenient access to items in refrigerated cabinets has been solved, enabling convenient access and storage of items with multiple temperature requirements, and improving the insulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU NEW LIFE HOPE MEDICAL LAB CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
In existing refrigerators, items that are placed in later tend to be placed near the door, requiring the user to go to a slightly deeper part of the refrigerator to retrieve them, which is extremely inconvenient.
A rotating mechanism is designed to drive the placement plate. The controller controls the rotating mechanism to rotate the placement plate so that the storage compartment faces the cabinet opening for easy retrieval. Each compartment is equipped with a refrigeration module and a weighing module, and the items are managed through the compartment's RFID tag.
It enables convenient access to items, reduces the impact on the temperature of other items, supports the storage of items with different temperature requirements, and improves the insulation effect.
Smart Images
Figure CN224262016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator technology, specifically to a refrigerator for storing items. Background Technology
[0002] Refrigerators can store items that need to be kept at low temperatures. However, with existing refrigerators, when items are placed in the refrigerator at different times, the items that are placed later tend to be placed near the door. If the same type of items are placed in the refrigerator at different times, when you want to get the items that were placed in the refrigerator earlier, you have to go to a slightly deeper part of the refrigerator to get them, which is extremely inconvenient. Utility Model Content
[0003] This invention provides a refrigerated cabinet for storing items to solve the above-mentioned problems.
[0004] This utility model is achieved through the following technical solution:
[0005] A refrigerator for storing goods, comprising:
[0006] The cabinet has an opening on one side, and an outer door that matches the opening is hinged to the opening of the cabinet.
[0007] At least one circular placement board is disposed in the cabinet. Several compartments are arranged in a circular array on the placement board. Each compartment has an opening on the side facing the outer side of the ring. The opening of each compartment is provided with an inner door that matches the opening. Each compartment is provided with a refrigeration module and a weighing module.
[0008] A rotating mechanism is fixedly connected to the center of the placement plate and is used to drive the placement plate to rotate.
[0009] The controller is electrically connected to the rotating mechanism, the refrigeration module, and the weighing module.
[0010] As an optimization, the rotating mechanism includes a motor with its output shaft facing upward and a rotating shaft fixedly connected to the output shaft of the motor. The motor is fixedly connected to the bottom wall inside the cabinet, and the rotating shaft passes through the placement plate and is fixedly connected to the placement plate.
[0011] As an optimization, the weighing module includes a gravity sensor and a placement platform, which is set on the bottom wall inside the storage compartment via the gravity sensor.
[0012] As an optimization, the refrigeration module includes a thermoelectric cooler and a temperature sensor, both of which are disposed on different side walls of the compartment, and are electrically connected to the controller.
[0013] As an optimization, a camera is also installed on the top wall inside the compartment, and an LED light is installed on the inner door. The camera and the LED light are electrically connected to the controller.
[0014] As an optimization, the storage compartment is hinged to the inner door. An electromagnetic switch is provided on the edge of the storage compartment away from the hinge. A magnet corresponding to the electromagnetic switch is provided on the inner door. A sealing strip is also provided on the inner side of the inner door, and the shape of the sealing strip matches the opening of the storage compartment.
[0015] As an optimization, a vacuum insulation plate is provided between adjacent compartments, and the shape of the vacuum insulation plate matches the gap between the compartments.
[0016] As an optimization, the storage compartment is equipped with a storage compartment RFID tag, which is a read / write RFID tag.
[0017] As an optimization, a touch display is installed on the upper part of the outer side of the cabinet, and the touch display is electrically connected to the controller.
[0018] As an optimization, a buzzer is installed on the upper part of the outer side of the cabinet, and the buzzer is electrically connected to the controller.
[0019] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0020] 1. This utility model designs a placement plate and a rotating mechanism to drive the placement plate, so that the storage compartment containing the items to be retrieved faces the opening of the cabinet, thereby facilitating the retrieval of the items.
[0021] 2. The double-door design increases insulation and reduces the impact on the temperature of other storage spaces when one item is taken out.
[0022] 3. By refrigerating each compartment individually, it is possible to accommodate items with different temperature requirements in different compartments. Attached Figure Description
[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0024] Figure 1 The present invention describes the external structure of a refrigerated cabinet for storing goods.
[0025] Figure 2 This is an internal schematic diagram of a refrigerated cabinet for storing goods according to the present invention;
[0026] Figure 3 This is a front view of the storage compartment;
[0027] Figure 4 for Figure 3 The left view;
[0028] Figure 5 This is a schematic diagram of the interior door structure;
[0029] Figure 6 This is a diagram showing how storage compartments are placed on a shelf.
[0030] Figure 7 This is a schematic diagram showing the connection between the various devices and the controller of the refrigerated cabinet for storing goods according to this utility model.
[0031] The attached diagram shows the markings and corresponding component names:
[0032] 1- Storage compartment, 1a- Electromagnetic switch, 1b- Storage compartment RFID tag, 1c- LED light, 1d- Refrigeration module, 1e- Camera, 1f- Gravity sensor, 1g- Temperature sensor, 1h- Sealing strip, 1i- Inner door, 1j- Placement platform, 1k- Magnet, 2- Cabinet, 3- Outer door, 4- Touch screen display, 5- Controller, 6- Motor, 7- Placement plate, 8- Vacuum insulation plate, 9- Buzzer, 10- Fan, 11- Communication module. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0034] This embodiment 1 provides a refrigerated cabinet for storing items, such as Figure 1-2 As shown, it includes:
[0035] The cabinet has an opening on one side, and an outer door that matches the opening is hinged to the opening of the cabinet.
[0036] At least one circular placement board is disposed in the cabinet. Several compartments are arranged in a circular array on the placement board. Each compartment has an opening on the side facing the outer side of the ring. The opening of each compartment is provided with an inner door that matches the opening. Each compartment is provided with a refrigeration module and a weighing module.
[0037] If there are multiple placement panels, these panels are arranged in a multi-layered structure within the cabinet. For example... Figure 2There are three placement plates in the compartment. Therefore, the three placement plates are arranged sequentially along the axis of the rotating shaft, and the distance between the placement plates is greater than the height of the compartment.
[0038] A rotating mechanism is fixedly connected to the center of the placement plate and is used to drive the placement plate to rotate.
[0039] It should be noted that the rotation speed of the rotating mechanism driving the placement plate can be set within a certain range to prevent the placement plate from rotating too fast and to ensure that the rotation of the placement plate will not cause the items to tip over. In other words, the rotation speed of the placement plate is set within a speed range that will not cause the items to tip over.
[0040] The controller is electrically connected to the rotating mechanism, the refrigeration module, and the weighing module.
[0041] In this technical solution, the storage compartments are independently mounted on the placement plate. The controller is communicatively connected to the terminal. The terminal controls the rotating mechanism via the controller to rotate the placement plate and also controls the refrigeration module to refrigerate the items. When an item in a particular compartment is needed, the terminal controls the rotating mechanism to rotate so that the compartment containing that item faces the outer door of the cabinet. Then, the operator opens the outer door and the inner door of the compartment in sequence to remove the item. It should be noted that the refrigerated cabinet in this embodiment is also connected to a power module, which supplies power to the rotating mechanism, controller, refrigeration module, and weighing module. This is existing technology and will not be elaborated upon here.
[0042] The terminal and the controller are connected via a communication module, which can be a wireless communication module or a wired communication module. Wireless communication modules include Wi-Fi (built into ESP32) and Bluetooth Mesh, while wired communication modules include Ethernet communication modules (such as W5500) or serial communication modules (such as MAX232).
[0043] In some embodiments, the outer door is hinged to the cabinet via hinges. The outer door can be made of a transparent material, such as insulated tempered glass, which makes it easy for users to observe the inside of the cabinet. Any lock in the prior art, such as a fingerprint lock or a mechanical lock, can be installed between the outer door and the cabinet, which will not be elaborated here.
[0044] In some embodiments, the shelf compartment is a box for placing items. The shelf compartment is fixed to a placement board. Both the shelf compartment and the inner door are made of insulating material. The shelf compartment and the inner door are hinged together. An electromagnetic switch is provided on the edge of the shelf compartment away from the hinge. A magnet corresponding to the electromagnetic switch is provided on the inner door. A sealing strip is also provided on the inner side of the inner door, and the shape of the sealing strip matches the opening of the shelf compartment. Figure 5As shown, the shape of the sealing strip is "mouth" shaped, and its size matches the opening of the inner door, which can reduce the loss of cold air in the cargo compartment. It should be noted that in order to avoid the situation that the inner door cannot be opened due to the imbalance of internal and external pressures caused by refrigeration inside the cargo compartment, the sealing strip can be designed in a slightly leaky manner, that is, the door seal strip (rubber sealing strip / sealing strip) is not completely airtight during design, but allows a very small amount of air to slowly pass through to achieve dynamic balance of internal and external air pressures, while minimizing cold air leakage and heat entry. For example, the door seal strip in the patent CN107990528A "A Refrigerator Door Seal Strip with Air Pressure Adjustment Function" can be referred to, or some very small holes can be provided on the side wall of the cargo compartment to achieve internal and external pressure balance. The content in "Design and Simulation of Refrigerator Air Pressure Balance System" (Journal of Mechanical Engineering, 2019) can be referred to. This content proposes a new type of door seal + ventilation hole combination design to balance air pressure and reduce cold loss.
[0045] Each cargo compartment corresponds to an independent small door (the size is slightly larger than the opening of the cargo compartment).
[0046] The material of the inner door can be transparent polycarbonate (resistant to low temperature).
[0047] Similarly, a slightly leaky door seal strip matching the opening of the outer door can also be provided on the inner side of the outer door, and small holes can also be provided on the side wall of the cabinet body by referring to "Design and Simulation of Refrigerator Air Pressure Balance System".
[0048] It should also be noted that when the inner door is opened, even if the outer door is not opened, it will not affect the opening of the inner door. Therefore, there is still a gap between the inner door and the closed outer door when the inner door is opened to the maximum extent.
[0049] In some embodiments, an LED lamp is provided on the inner door, and the LED lamp is arranged on the circuit between the electromagnetic switch and the controller. Here, the electromagnetic switch is an electromagnetic relay. The electromagnetic switch in this embodiment is a power-off type suction electromagnet. For example, the DKX3030 model electromagnet produced by Dongguan Deang Electromagnetic Technology Co., Ltd. is a power-off type suction electromagnet, which is characterized by maintaining suction in the power-off state and disconnecting when powered on. When the terminal powers on the electromagnetic switch of a certain cargo compartment through the controller, the inner door of that cargo compartment can be opened, and at the same time, the LED lamp of the corresponding cargo compartment lights up, which can prompt the staff which cargo compartment can be opened specifically.
[0050] In some embodiments, at the same time, in order to be more intelligent, a door closer can be installed on the top of the cargo compartment. After the staff opens the inner door and takes the items, the inner door can be automatically closed through the door closer. Specific models such as Geze TS1000C, TS5000, Dorma TS68, TS71, and electronic door closers can be referred to. Details are not elaborated here.
[0051] Of course, in some embodiments, a torsion spring can be installed on the side where the inner door and the shelf are hinged. When the electromagnetic switch is energized, the inner door of the shelf automatically opens under the action of the torsion spring. The specific installation position of the torsion spring is in the prior art. For example, in this embodiment, the inner door is a swing door (hinged door), and the torsion spring can be installed at the hinge axis position: the torsion spring can be directly installed on the hinge axis of the door (or replace part of the hinge), and the door is driven to open by the rotational force of the spring, similar to a screen window spring hinge. Specifically, the selection of the torsion spring depends on the actual needs, which will not be elaborated here.
[0052] It should also be noted that both the outer and inner doors are equipped with handles for easy opening by staff.
[0053] In some embodiments, the rotating mechanism includes a motor with its output shaft facing upward and a rotating shaft fixedly connected to the output shaft of the motor. The motor is fixedly connected to the bottom wall inside the cabinet, and the rotating shaft passes through the placement plate and is fixedly connected to the placement plate.
[0054] The motor is electrically connected to the controller, and a photoelectric encoder is installed on the end of the motor's output shaft or rotating shaft furthest from the motor. This photoelectric encoder is also electrically connected to the controller. The installation method of the photoelectric encoder is existing technology and will not be described in detail here. The photoelectric encoder, rotating shaft, and output shaft are all coaxially arranged. The photoelectric encoder can reflect the rotational position of the output shaft in real time, which means it can reflect the rotational position of the placement plate. This is existing technology; for example, refer to the content in patent US9431952B2, which will not be described in detail here.
[0055] In some embodiments, the weighing module includes a gravity sensor and a placement platform, the placement platform being mounted on the bottom wall inside the storage compartment via the gravity sensor. The gravity sensor can be fixed to the bottom wall inside the storage compartment, and the placement platform can also be fixed to the gravity sensor.
[0056] Once an item is placed on the platform, the gravity sensor detects its weight and transmits the detected signal to the controller, which then transmits it to the terminal.
[0057] In some embodiments, the refrigeration module includes a thermoelectric cooler and a temperature sensor, both of which are disposed on different side walls of the compartment, and are electrically connected to the controller.
[0058] Temperature sensors are used to detect the temperature inside each compartment, and thermoelectric coolers cool each compartment individually.
[0059] In some embodiments, a camera is also provided on the top wall inside the compartment, and the camera is electrically connected to the controller.
[0060] The camera is used to capture the scene inside the storage compartment and transmits the captured image data to the terminal via the controller for display.
[0061] In some embodiments, a vacuum insulation plate is provided between adjacent compartments, the shape of which matches the gap between the compartments.
[0062] Vacuum insulation panels (VIPs) are high-performance thermal insulation materials. They utilize vacuum sealing technology to encapsulate a porous core material within a barrier membrane, significantly reducing heat conduction and convection in a vacuum environment, thus achieving an ultra-low thermal conductivity (5-10 times more efficient than traditional insulation materials). Examples include Panasonic's U-Vacua series, or Va-Q-tec's va-Q-vip or va-Q-argo series.
[0063] In some embodiments, the storage compartment is equipped with a storage compartment RFID tag (compatible with liquid / metal environments). The storage compartment RFID tag is a read-write tag, such as a high frequency (HF) or ultra-high frequency (UHF) tag, which allows data to be written.
[0064] Items are equipped with RFID tags (compatible with liquid / metal environments). When an item is placed in a compartment, a fixed reader or handheld device scans both the compartment tag (the RFID tag on the compartment) and the item tag, writing the item's RFID ID or key information (such as item number, name, production date, and shelf life (e.g., NXP NTAG213)) into the designated user memory area of the compartment tag. For example, the compartment tag might store: [Compartment Number: A01][Bound Item ID: ITEM_123456 | Name: Reagent A | Production Date: 2025.06.04 | Shelf Life: 6 months]. The fixed reader or handheld device then scans and connects to a terminal, synchronizing the stored information from the compartment tag to the terminal. When querying on the terminal, entering the item name will retrieve the corresponding compartment number.
[0065] You can refer to the following patents: US20190392384A1 (Item RFID Binding Method), which describes a technology for batch scanning and automatic association with a database using UHF RFID; CN110532944A (Dynamic RFID Binding System), which combines RFID to achieve automatic binding on shelves; and EP3125236B1 (NFC Tag Data Encryption Binding), used in high-security scenarios (such as anti-counterfeiting of pharmaceuticals).
[0066] In some embodiments, if a fixed reader / writer is used (e.g., Impinj R2000 (UHF) or FeigHF reader / writer (HF)), the fixed reader / writer is installed inside the storage compartment, and the RFID tag for the storage compartment is also installed inside the storage compartment. When an item is placed in the storage compartment, the fixed reader / writer will simultaneously read the contents of the item's RFID tag and the storage compartment's RFID tag, thereby binding the item and the storage compartment. The fixed reader / writer can be triggered based on changes in the gravity sensor. When the gravity sensor detects a change in gravity, it transmits the detection data to the controller. The controller then sends a trigger signal to control the fixed reader / writer to perform read / write operations, thereby reading the contents of the item's RFID tag and the storage compartment's RFID tag.
[0067] Once an item is removed from a storage compartment, the gravity sensor detects a change in gravity, and the controller sends a trigger signal to control the fixed reader to perform a read / write operation. The fixed reader only scans the RFID tag in the storage compartment, at which point the item and the storage compartment are unbound.
[0068] In some embodiments, when a handheld scanning device is used, the RFID tag for the storage compartment can be placed in a location that can be scanned by the handheld device (handheld RFID reader), such as on the side wall inside the compartment facing the inner door. When a new item is stored, the production date and shelf life are written to it via the handheld RFID reader.
[0069] Once an item is removed from a storage compartment, the RFID tag can be scanned again using a handheld scanning device to update the RFID tag content and unbind the item from the storage compartment.
[0070] RFID Misread Protection:
[0071] Employ phase frequency hopping technology (such as the EPC Gen2 protocol) to avoid multi-tag collisions.
[0072] If three consecutive reads of the same label are inconsistent, a manual review will be triggered.
[0073] Data redundancy backup
[0074] The main control chip's Flash memory stores the 100 most recent scan records to prevent data loss due to tag damage.
[0075] In some embodiments, a buzzer is installed on the upper outer side of the cabinet, and the buzzer is electrically connected to the controller.
[0076] When the inner door of the storage compartment is opened, a buzzer will sound to alert staff. Specifically, the buzzer, similar to an LED light, can be installed in the circuit between the electromagnetic switch and the controller. When the electromagnetic switch is energized, the inner door opens, and the buzzer sounds an alarm.
[0077] In some embodiments, a touch display is mounted on the upper outer side of the cabinet, and the touch display is electrically connected to the controller.
[0078] Here, touch displays are used for human interaction, and touch displays can serve as one type of terminal.
[0079] The terminal can be a computer, a mobile phone, or a touch screen.
[0080] It should also be noted that a cooling fan is installed on the cabinet, and aluminum fins are also installed on the side walls of the cabinet. The cooling fan is electrically connected to the controller. The cooling efficiency of refrigerators using thermoelectric cooling (TEC) chips is highly dependent on the performance of the cooling system. The cooling fan is a key component ensuring the efficient operation of the TEC. The following is a detailed design and implementation method:
[0081] 1. Heat dissipation requirements of semiconductor cooling chips:
[0082] TEC operating characteristics: When powered on, the cold end of the TEC absorbs heat (for refrigeration) and the hot end releases heat (which needs to be dissipated quickly).
[0083] 2. Selection and installation of cooling fans:
[0084] (1) Fan type: axial fan (low noise) or centrifugal fan (high pressure). Axial fans are suitable for general heat dissipation; centrifugal fans are suitable for compact spaces or scenarios requiring high air pressure. Therefore, in this embodiment, an axial fan is used.
[0085] (2) Installation location:
[0086] Active cooling (forced convection):
[0087] Hot-end heatsink + fan: Attach the hot end of the TEC (heat exchanger) tightly to the aluminum heatsink fins (apply thermal paste). Mount the fan above or to the side of the heatsink, with the airflow directed towards the heatsink (recommended) or exhausting air from the heatsink.
[0088] Airflow design: Ensure that the fan airflow passes directly through the heatsink fins to prevent hot air backflow (a deflector plate can be added).
[0089] The process of using the refrigerator of this utility model is as follows:
[0090] Locate the empty storage compartment on the terminal, open the outer door, and select one of the empty compartments to open its inner door. Use an RFID reader to scan the RFID tag of the compartment and the RFID tag of the item to bind the item to the compartment and transmit the binding information to the terminal. The weight sensor transmits the detected weight of the item to the terminal. At the same time, the camera captures real-time footage of the inside of the compartment.
[0091] When an item needs to be retrieved, the corresponding compartment is located on the terminal by the item name. Then, the motor is controlled to rotate, so that the corresponding compartment faces the outer door. After the compartment reaches the designated location, the inner door of the compartment is opened. (The electromagnetic switch can be turned on when the compartment is selected or after the compartment reaches the designated location. The motor rotation speed is not too fast. Even if the electromagnetic switch is turned on when the compartment is selected, it will not open automatically due to the sealing strip if there is no torsion spring. If a torsion spring is installed, the inner door needs to be opened after the compartment reaches the designated location.) At this time, the buzzer sounds to remind the staff to retrieve the item. After the item is retrieved, the RFID tag of the compartment is automatically cleared of the binding information. (This technology can be referenced in JP2021081702A, a Panasonic patent, which combines RFID and pressure sensors to automatically update the tag status when the item is taken away.)
[0092] The temperature of the storage compartment can be set according to the needs of the items placed therein. Furthermore, the inner wall of the cabinet of this utility model is equipped with antibacterial stainless steel (with Ag ion coating), with an antibacterial rate of ≥99%. The storage board is made of food-grade ABS plastic (resistant to low temperatures down to -40℃).
[0093] A voice control module, including a microphone array and a voice processing module, can also be installed inside the cabinet.
[0094] Microphone array:
[0095] Select a digital MEMS microphone (such as INMP441) to support far-field sound pickup (3-5 meters), and integrate it on the top of the refrigerator.
[0096] Noise reduction design:
[0097] An array of 2 to 4 microphones is used to pick up user voice in a directional manner using beamforming technology, while suppressing environmental noise (such as compressor noise).
[0098] Hardware filtering circuits (such as high-pass filters + FFT noise reduction chips).
[0099] Voice processing module:
[0100] Main control chip: Dedicated voice recognition SOC (such as Espressif ESP32-S3, which supports Wi-Fi / BLE and has a built-in neural network accelerator).
[0101] Auxiliary chip: DSP audio processing chip (such as STM32F4 series), which processes audio streams in real time.
[0102] Of course, RFID / barcode identification devices, such as barcode scanners, can also be installed on the cabinet. The identification device is electrically connected to the controller. When the identification device collects the RFID / barcode data of the item to be taken from the refrigerated cabinet, it transmits the data to the controller. The controller finds the corresponding compartment and controls the motor to drive the placement plate to rotate.
[0103] To make the technical solutions expressed in this specification clearer, the following explanations are provided for some of the English terms used in the text:
[0104] Bluetooth Mesh: Bluetooth mesh network;
[0105] RFID ID: Radio Frequency Identification Mark;
[0106] UHF RFID: Ultra-high frequency radio frequency identification;
[0107] Impinj R2000: Impinj's R2000 series UHF reader chip (Impinj is an American company, and R2000 is the model number of its Indy series reader chips).
[0108] Feig HF: Feig HF series high-frequency reader (Feig is the German company Feig Electronics, and HF is an abbreviation for High Frequency).
[0109] EPC Gen2: Electronic Product Code Protocol (EPCglobal Gen2 protocol, an internationally recognized standard protocol in the UHF RFID field); NXP NTAG213: NXP's NTAG213 NFC tag chip, operating at 13.56MHz, conforming to the ISO / IEC 14443 standard, and featuring a readable and writable user storage area;
[0110] Flash: Flash memory;
[0111] LED: Light Emitting Diode;
[0112] RFID: Radio Frequency Identification;
[0113] SOC: System on Chip;
[0114] DSP: Digital Signal Processor;
[0115] Wi-Fi: Wireless Fidelity.
[0116] BLE: Bluetooth Low Energy.
[0117] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A refrigerator for storing goods, characterized in that, include: The cabinet has an opening on one side, and an outer door that matches the opening is hinged to the opening of the cabinet. At least one circular placement board is disposed in the cabinet. Several compartments are arranged in a circular array on the placement board. Each compartment has an opening on the side facing the outer side of the ring. The opening of each compartment is provided with an inner door that matches the opening. Each compartment is provided with a refrigeration module and a weighing module. A rotating mechanism is fixedly connected to the center of the placement plate and is used to drive the placement plate to rotate. The controller is electrically connected to the rotating mechanism, the refrigeration module, and the weighing module.
2. The refrigerated storage cabinet for goods according to claim 1, characterized in that, The rotating mechanism includes a motor with its output shaft facing upward and a rotating shaft fixedly connected to the output shaft of the motor. The motor is fixedly connected to the bottom wall inside the cabinet, and the rotating shaft passes through the placement plate and is fixedly connected to the placement plate.
3. The refrigerated storage cabinet for goods according to claim 1, characterized in that, The weighing module includes a gravity sensor and a placement platform, which is set on the bottom wall inside the storage compartment via the gravity sensor.
4. A refrigerated storage cabinet for goods according to claim 1, characterized in that, The refrigeration module includes a thermoelectric cooler and a temperature sensor, both of which are disposed on different side walls of the compartment. The thermoelectric cooler and the temperature sensor are electrically connected to the controller.
5. A refrigerated storage cabinet for goods according to claim 1, characterized in that, A camera is installed on the top wall inside the storage compartment, and an LED light is installed on the inner door. The camera and the LED light are electrically connected to the controller.
6. A refrigerated storage cabinet for goods according to claim 1, characterized in that, The storage compartment is hinged to the inner door. An electromagnetic switch is provided on the edge of the storage compartment away from the hinge. A magnet corresponding to the electromagnetic switch is provided on the inner door. A sealing strip is also provided on the inner side of the inner door. The shape of the sealing strip matches the opening of the storage compartment.
7. A refrigerated storage cabinet for goods according to claim 1, characterized in that, A vacuum insulation panel is provided between adjacent compartments, and the shape of the vacuum insulation panel matches the gap between the compartments.
8. A refrigerated storage cabinet for goods according to claim 1, characterized in that, The storage compartment is equipped with a storage compartment RFID tag, which is a read / write RFID tag.
9. A refrigerated storage cabinet for goods according to claim 1, characterized in that, A touch display is installed on the upper part of the outer side of the cabinet, and the touch display is electrically connected to the controller.
10. A refrigerated storage cabinet for goods according to claim 1, characterized in that, A buzzer is installed on the upper part of the outer side of the cabinet, and the buzzer is electrically connected to the controller.