Accommodating equipment provided with radio frequency shielding assembly

Abstract

The utility model relates to a containing device provided with a radio frequency shielding assembly, the containing device comprises a cabinet body with a radio frequency signal shielding function and a cabinet door, the cabinet body comprises an outer shell and an inner shell, the radio frequency shielding assembly is arranged at the joint of the outer shell and the inner shell, and the radio frequency shielding assembly comprises a metal heat insulation component. According to the utility model, radio frequency signals in the cabinet body can be prevented from leaking out, perfect shielding of the radio frequency signals is satisfied, and installation is convenient and fast.

Description

Technical Field

[0001] The present application relates to a containing device, and in particular to a containing device provided with a radio frequency shielding component. Background Art

[0002] Radio frequency technology is widely used in the management of items. Through the transmission of inductive signals between an RF signal generator and the RFID tags attached to items, precise management of items is achieved. Specifically, when items are placed in an enclosed space, since enclosed spaces effectively shield RF signals, the signals emitted within the enclosed space can only be transmitted through inductive signals with the RFID tags attached to the items within. In this case, RF technology can effectively and precisely manage items within the enclosed space, potentially including the size, quantity, and access time of the stored items.

[0003] To achieve effective and precise management, storage equipment must be equipped with RF shielding components to prevent signals generated by the RF signal generator from leaking outside the storage equipment. This prevents the signal generator from interacting with RF tags attached to items outside the storage equipment. This is key to ensuring that RF technology can accurately manage items within the storage equipment. Existing RF shielding technologies generally address RF signal leakage between the door and the cabinet. RF shielding technology specifically for the door itself, particularly one that addresses both thermal insulation and RF shielding, has yet to be developed.

[0004] For example, Chinese patent application 202221158517.X discloses a door comprising a door body, a shielding strip and a magnetic strip. The shielding strip is hollow inside, and the shielding strip is arranged on the door body and protrudes from the surface of the door body; the magnetic strip is arranged inside the shielding strip and is used to attach the shielding strip to the cabinet body through magnetic attraction. The shielding strip arranged on the door body and protruding from the surface of the door body can seal the gap between the door body and the cabinet body when the door is attached to the cabinet body, so as to enhance the sealing effect at the joint between the door body and the cabinet body, thereby reducing the spillage of radio frequency signals. However, the shielding strip in this patent is only arranged on the door body, and is not arranged on the cabinet body, and the shielding strip needs to be fixed to the door body through a sealing plate protruding from the surface of the door body. At this time, not only an additional component is added, which is not conducive to the convenience of installation, but also because the sealing plate is protruding and installed on the door body, a new source of signal leakage may appear between the sealing plate and the door body.

[0005] Chinese patent application 201910526453.0 discloses a smart retail cabinet that interferes with or prevents the leakage of wireless radio frequency signals, including: a cabinet body for displaying and exhibiting goods, made of a material that can block radio frequency signals, with a cabinet door in front for consumers to open and extract goods; the cabinet door and / or the door frame connected to the cabinet door are surrounded by metal wires, and the metal wires are in a closed state and form a loop. When the RFID radio frequency signal sent by the reader leaks into the door gap, the magnetic field generated by the loop formed by the metal wire will cut the magnetic lines of force, thereby interfering with or preventing the wireless radio frequency signal from being transmitted, and at the same time, it also cuts off the signal connection between the RFID electronic tag that has left the shelf and the decoder. Since the receiving end cannot receive the feedback signal of the RFID electronic tag that has left the shelf, the system can accurately determine that the product has left the shelf and report it to the settlement system for settlement. Although this patent takes into account the problem of signal leakage between the cabinet body and the cabinet door, its defects are also obvious. The magnetic field signal of the metal coil needs to be adjusted to offset the radio frequency signal, which not only makes the operation and control complicated, but also for cabinet doors of different sizes, especially large-sized cabinet doors, it will inevitably lead to a part of the cabinet door area with a weaker magnetic field signal, which cannot block or offset the wireless radio frequency signal, resulting in ineffective radio frequency shielding.

[0006] Therefore, the prior art requires a containing device with a simple structure, light weight, and strong radio frequency signal shielding effect. Utility Model Content

[0007] This application proposes a container device equipped with a radio frequency shielding assembly. By disposing the radio frequency shielding assembly at the junction of the outer and inner shells of the cabinet, and forming a complete shielding closed loop with the outer and inner shells, and even the cabinet door, the radio frequency shielding assembly can prevent the leakage of radio frequency signals within the cabinet, thereby achieving perfect shielding of radio frequency signals. Alternatively, the radio frequency shielding assembly of this application can be formed to include a metal thermal insulation member to prevent the leakage of cold air inside the cabinet, thereby avoiding the problem of condensation outside the cabinet.

[0008] The present application relates to a container device provided with a radio frequency shielding assembly, comprising a cabinet body and a cabinet door with a radio frequency signal shielding function, wherein the cabinet body comprises an outer shell and an inner shell, and a radio frequency shielding assembly is provided at the joint between the outer shell and the inner shell, and the radio frequency shielding assembly comprises a metal thermal insulation component.

[0009] In which, the metal thermal insulation component may include a first sub-component connected to the outer shell and a second sub-component connected to the inner shell, the first sub-component and the second sub-component are connected by a partition component, and a shielding component is provided at the joint of the first sub-component, the second sub-component and the partition component; the first sub-component and the second sub-component can be joined to the partition component through a wedge structure; an insulation layer or an insulation vacuum layer can be provided between the outer shell and the inner shell, the metal thermal insulation component is a thermally broken aluminum component, and a flexible shielding device can be provided between the cabinet body and the cabinet door.

[0010] In which, the accommodation device may also be provided with a refrigeration system, which may include a compressor, a condenser, a throttle valve and an evaporator. The evaporator is arranged inside the cabinet, and the compressor and the condenser are arranged outside the cabinet. The evaporator, the compressor and the condenser are connected through the throttle valve to form a heat exchange cycle.

[0011] In which, the accommodating device may also be provided with a control system, which may include a radio frequency generator, which is connected to the communication device in the cabinet; the accommodating device may also include a micro control unit, which is connected to the communication device; the micro control unit may also be connected to a remote module, which transmits the information of the accommodating device to the cloud, and the remote control unit performs analysis, processing and control management. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a receiving device provided with a radio frequency shielding component according to the present application.

[0013] Figure 2 It is a schematic diagram of an embodiment of the radio frequency shielding assembly of the receiving device of the present application.

[0014] Figure 3 This is a detailed structural diagram of the radio frequency shielding assembly of the accommodation device of the present application. DETAILED DESCRIPTION

[0015] To make the purpose, technical solutions and advantages of this application more clear, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other in any way.

[0016] This application proposes a receiving device provided with a radio frequency shielding component, such as Figure 1As shown, the cabinet includes a cabinet body 1 and a cabinet door 2 with RF signal shielding functions, which together form an enclosed space. The cabinet body 1 includes an outer shell 11, a thermal insulation layer 12, and an inner shell 14. The thermal insulation layer 12 is sandwiched between the outer shell 11 and the inner shell 14. The thermal insulation layer 12 not only provides excellent thermal insulation but also allows the outer shell 11, RF shielding assembly 13, and inner shell 14 to be combined into a single, integrated structure. Alternatively, the thermal insulation layer 12 may be omitted, and the space between the outer shell 11 and the inner shell 14 may be provided as a vacuum insulation.

[0017] The joint of the outer shell 11 and the inner shell 14 is provided with a radio frequency shielding assembly 13. The radio frequency shielding assembly 13 includes a metal thermal insulation component, a partition component 132 and a shielding component 133. The metal thermal insulation component can be made of aluminum alloy, which not only has a good shielding effect on radio frequency signals, but also can form a thermal insulation structure of thermally broken aluminum. In the present application, the cabinet 1 composed of the outer shell 11, the thermal insulation layer 12, the radio frequency shielding assembly 13, the inner shell 14, etc. is combined with the cabinet door 2 which also has the radio frequency signal shielding function. The gap between the two can be sealed by adding an additional shielding device, such as a flexible shielding strip 21, to isolate the radio frequency signal from leaking through the gap between the two.

[0018] The outer shell 11 is exposed to the environment, and the inner shell 14 is arranged in the cabinet 1. When the cabinet is in a low-temperature state, the temperature of the inner shell 14 is lower than the ambient temperature. If the inner shell 14 is in direct contact with the outer shell 11, the coldness in the low-temperature cabinet will be transferred to the outer shell 11 through the inner shell 14, and cause the surface temperature of the outer shell 11 to be lower than the dew point in the ambient air to form condensation. Therefore, the outer shell 11 and the inner shell 14 should not be in direct contact to form a shell, but an insulation layer 12 must be provided. At this time, the outer shell 11 and the inner shell 14 need to be joined and connected. At the same time, the material of the inner shell 14 can be metal or an organic synthetic material. When the inner shell 14 is an organic synthetic material, the radio frequency signal emitted by the radio frequency signal generator 41 in the low-temperature cabinet cannot be effectively shielded. In view of the above-mentioned problems, it is necessary to transitionally connect the outer shell 11 and the inner shell 14 through the radio frequency shielding component 13. The splicing structure of the outer shell 11 and the inner shell 14 in the cabinet 1 is composed of the radio frequency shielding component 13.

[0019] Preferably, in order to better form the shielding effect, as Figure 2-3As shown, the metal heat-insulating component includes a first sub-component A connected to the outer shell 11 and a second sub-component B connected to the inner shell 14, and the first sub-component A and the second sub-component B are connected by a partition component 132. Specifically, a wedge structure may be provided on the first sub-component A and the second sub-component B, and a tight and reliable connection is achieved by the wedge structure on the partition component 132. The partition component 132 may be a metal component with a signal shielding effect, or a non-metallic component. Preferably, a shielding component 133 may be provided at the joint of the first sub-component A, the second sub-component B and the partition component 132 to prevent the radio frequency signal from leaking from the joint of the first sub-component A, the second sub-component B and the partition component 132.

[0020] This application can completely shield radio frequency signals in an enclosed space, eliminating the risk of leakage. It can precisely manage items using radio frequency technology and can be used in, for example, item distribution equipment, document management equipment, and vending machines, providing accurate and detailed data information about items within the enclosed space. Some items may have certain requirements for temperature and humidity within the enclosed space during storage. In this case, a refrigeration system can be installed within the box to maintain the required temperature and humidity inside the device.

[0021] like Figure 1 As shown, refrigeration system 3 may include a compressor, condenser, throttle valve, and evaporator. The evaporator is located inside the cabinet and exchanges heat with the air inside the cabinet. This heat exchange can be forced convection or natural convection. When the air inside the cabinet contacts the evaporator, condensation forms and water is discharged from the cabinet, thereby maintaining the humidity of the cabinet. The compressor and condenser can be located outside the cabinet, exchanging heat with the ambient air and connected via the throttle valve to form a refrigeration and heat exchange cycle. Control system 4 can transmit and sense radio frequency signals and manage item information. Furthermore, it uses temperature or humidity sensors within the cabinet to control the operation of refrigeration system 3 to meet the required temperature and humidity requirements within the cabinet. Control system 4 can be installed inside or outside cabinet 1. It may include an RF generator, a microcontroller (MCU), and a remote module. The RF generator is connected to a communication device and can transmit and receive RF signals. The MCU can detect the presence of the RF tag and determine whether the item is within the storage device. The remote module can transmit information about the storage device to the cloud, where it is analyzed, processed, and controlled.

[0022] Although the embodiments disclosed in this application are as described above, the contents described are merely embodiments adopted to facilitate understanding of this application and are not intended to limit this application. Any person skilled in the art of the art to which this application belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application. However, the scope of patent protection of this application shall still be based on the scope defined by the attached claims.

Claims

1. A container device provided with a radio frequency shielding assembly, characterized in that: The invention comprises a cabinet body and a cabinet door with radio frequency signal shielding function. The cabinet body comprises an outer shell and an inner shell. A radio frequency shielding component is provided at the joint of the outer shell and the inner shell. The radio frequency shielding component comprises a metal heat insulation component.

2. The receiving device according to claim 1, wherein: The metal heat-insulating component includes a first sub-component connected to the outer shell and a second sub-component connected to the inner shell, and the first sub-component and the second sub-component are connected via a partition component.

3. The receiving device according to claim 2, characterized in that A shielding component is provided at the joint of the first sub-component, the second sub-component and the partition component.

4. The receiving device according to claim 2 or 3, characterized in that: The first sub-component and the second sub-component are engaged with the partition component via a wedge structure.

5. The receiving device according to any one of claims 1 to 3, characterized in that: A heat insulation layer or a heat insulation vacuum layer is provided between the outer shell and the inner shell, and the metal heat insulation component is a thermally-insulated aluminum component.

6. The receiving device according to claim 1, characterized in that A flexible shielding device is provided between the cabinet body and the cabinet door.

7. The receiving device according to any one of claims 1 to 3 and 6, characterized in that: The accommodation device is also provided with a refrigeration system, which includes a compressor, a condenser, a throttle valve and an evaporator. The evaporator is arranged inside the cabinet, and the compressor and the condenser are arranged outside the cabinet. The evaporator, the compressor and the condenser are connected through the throttle valve to form a heat exchange cycle.

8. The receiving device according to any one of claims 1 to 3 and 6, characterized in that: The accommodating device is further provided with a control system, which includes a radio frequency generator connected to the communication device in the cabinet.

9. The receiving device according to claim 8, characterized in that The accommodating device further comprises a micro control unit, and the micro control unit is connected to the communication device.

10. The receiving device according to claim 9, characterized in that The micro control unit is also connected to a remote module, which transmits the information of the accommodation device to the cloud, and the remote control unit performs analysis, processing and control management.

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