Containing device with radio frequency shielding assembly

Abstract

The utility model relates to an accommodating device with a radio frequency shielding assembly, which comprises an accommodating body with a radio frequency shielding function and a cabinet door, and is characterized in that the radio frequency shielding assembly is arranged between the accommodating body and the cabinet door and comprises a first shielding part and a second shielding part which are correspondingly arranged; the first shielding piece is arranged on the accommodating body, and the second shielding piece is arranged on the cabinet door. According to the invention, the radio-frequency signal in the accommodating device can be completely shielded, and the leakage of the radio-frequency signal is prevented.

Description

Technical Field

[0001] This application relates to a housing device, and more particularly to a housing device with a radio frequency shielding component. Background Technology

[0002] Radio frequency (RF) technology refers to the identification of objects through the acquisition and analysis of radio frequency signals. With the rapid development of the Internet and the Internet of Things (IoT), the application fields of RF technology have become wider. It can be used for the precise identification and management of objects, greatly reducing the intensity of manual management, improving management accuracy, and enabling remote management through interconnection technology. For example, RF technology can be applied to the storage and management of items in enclosed containers. RF tags are affixed to the items, and an RF signal generator is placed inside the container, sensing the RF tag. After an item is removed from the container, the RF signal generator can no longer sense the RF tag, indicating that the item with the RF tag has been removed. Similarly, when an item with an RF tag is placed into the container, the RF signal generator will sense the RF tag, indicating that the item with the RF tag has been placed inside.

[0003] The containment device should be equipped with an RF shielding component to prevent signals generated by the RF signal generator from leaking outside the containment device. This prevents the signal generator from sensing RF tags on items outside the containment device, which is crucial for ensuring accurate management of items inside the containment device using RF technology. The best way to shield the signal is to use a metal material, such as steel plate, to form the body of the containment device, but this has the disadvantages of consuming a lot of material and being bulky, making it unsuitable for mass production. Alternatively, a separate RF shielding component should be used to prevent signal leakage from the RF signal generator.

[0004] Chinese patent application 202221158517.X discloses a door including a door body, a shielding strip, and a magnetic strip. The shielding strip is hollow inside and is set on the door body, protruding from the surface of the door body. The magnetic strip is set inside the shielding strip and is used to attach the shielding strip to the cabinet through magnetic attraction. The shielding strip, set on the door body and protruding from the door body surface, can seal the gap between the door body and the cabinet body when the door is attached to the cabinet body, thereby enhancing the sealing effect at the joint between the door body and the cabinet body and reducing radio frequency signal leakage. However, the shielding strip in this patent is only set on the door body and not on the cabinet body. Moreover, the shielding strip needs to be fixed to the door body by a sealing plate protruding from the door body surface. This not only adds extra components, which is not conducive to the convenience of installation, but also, because the sealing plate is installed on the door body, it may create a new source of signal leakage 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 radio frequency signals. The cabinet includes a cabinet body for displaying and exhibiting goods, made of a material capable of blocking radio frequency signals, and a door at the front for consumers to open and retrieve goods. Metal wires are arranged around the door and / or the door frame connecting the door, and these metal wires are in a closed state, forming a loop. When the RFID radio frequency signal sent by the reader leaks through the door gap, the magnetic field generated by the loop formed by the metal wires cuts the magnetic lines of force, thereby interfering with or preventing the transmission of the radio frequency signal. It also cuts off the signal connection between the RFID electronic tag leaving the shelf and the decoder. Since the receiving end cannot receive the signal from the RFID electronic tag leaving the shelf, the system can accurately determine that the goods have left the shelf and report to the checkout system for settlement. Although the patent takes into account the signal leakage problem between the cabinet and the cabinet door, its shortcomings are also obvious. It requires adjusting the magnetic field signal of the metal coil to cancel the radio frequency signal, which not only leads to the complexity of operation and control, but also inevitably results in a weak magnetic field signal in a part of the cabinet door, especially for large cabinet doors, which cannot block or cancel the wireless radio frequency signal, thus rendering the radio frequency shielding ineffective.

[0006] Therefore, there is a need in the prior art for a containment device that is simple in structure, lightweight, and has a strong radio frequency signal shielding effect. Utility Model Content

[0007] This application proposes a housing device with radio frequency shielding components. The housing body can be formed by a metal sheet and a heat insulation layer such as polyurethane foam, and corresponding radio frequency shielding components are respectively set on the cabinet door and the housing body, which gives it the technical advantages of convenient installation of radio frequency shielding components and good radio frequency shielding effect.

[0008] This application relates to a housing device with a radio frequency shielding component, comprising a housing body with radio frequency shielding function and a cabinet door, wherein a radio frequency shielding component is provided between the housing body and the cabinet door, and the radio frequency shielding component includes a first shielding member and a second shielding member disposed therebetween, the first shielding member being disposed on the housing body and the second shielding member being disposed on the cabinet door.

[0009] At least one of the first shielding member and the second shielding member can be adhered to at least one of the housing body and the cabinet door; or, a mounting groove can be provided at the mounting location of at least one of the housing body and the cabinet door, and at least one of the first shielding member and the second shielding member is disposed in the mounting groove. The housing body may include an outer shell, an inner shell, and a heat insulation layer filled between the two, and at least one of the outer shell and the inner shell may be a metal plate with a shielding function; the outer shell may include a U-shaped shell, a rear plate, and a bottom plate, forming a three-dimensional structure with one open side; the cabinet door may include a door frame and a front panel provided with a third shielding member, and the front panel is disposed on the door frame; a human-machine interaction device may also be installed on the cabinet door.

[0010] The device may also include an intelligent controller, which may include a radio frequency generator connected to a communication device within the housing. The intelligent controller may also include a microcontroller unit that determines whether an item is inside the housing based on radio frequency signals emitted by the communication device. Furthermore, the intelligent controller may include a remote module capable of transmitting information to the cloud for analysis, processing, and control by a remote control unit. Finally, the intelligent controller may be connected to a cooling module, which includes a heat dissipation unit placed outside the housing and a cooling unit placed inside the housing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the receiving device with radio frequency shielding components according to this application.

[0012] Figure 2 This is a schematic diagram of one embodiment of the receiving body of the receiving device of this application.

[0013] Figure 3 This is a schematic diagram of another embodiment of the receiving body of the receiving device of this application.

[0014] Figure 4 This is a perspective view of the housing body of the housing device of this application.

[0015] Figure 5 This is a schematic diagram of the housing body and cabinet door of the housing device of this application.

[0016] Figure 6 This is a schematic diagram of the metal door frame of the receiving device of this application.

[0017] Figure 7 This is another schematic diagram of the receiving device with radio frequency shielding components of this application.

[0018] Figure 8This is another schematic diagram of the metal door frame of the receiving device of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0020] According to this application, a receiving device with a radio frequency shielding component, such as Figure 1-8 As shown, the device includes a housing body 1 with radio frequency (RF) shielding function and a cabinet door 2. An RF shielding assembly 3 is provided between the housing body 1 and the cabinet door 2. The RF shielding assembly 3 includes a first shielding element 31 and a second shielding element 32, which are respectively disposed on the housing body 1 and the second shielding element 32, respectively disposed on the cabinet door 2. This application makes the installation of the shielding elements very convenient and quick, and ensures good fit, thereby forming a good shield against RF signals, by directly placing the first shielding element 31 and the second shielding element 32 on the housing body 1 and the cabinet door 2, respectively. Alternatively, mounting grooves specifically designed for placing the first shielding element 31 and the second shielding element 32 can be provided at the mounting locations of the housing body 1 and the cabinet door 2. These methods not only make installation simple and quick, but also allow for the use of adhesive or tape with negligible thickness, and the mounting grooves can shield the shielding elements, all of which minimize the leakage of RF signals.

[0021] Preferably, at least one of the first shielding member 31 and the second shielding member 32 is a flexible shielding member. Figure 5 As shown, a first shielding element 31 and a second shielding element 32, both flexible, are provided at the mating point between the housing body 1 and the cabinet door 2. The first shielding element 31 and the second shielding element 32 can be shielding tape, shielding pads, or shielding substrates. When the cabinet door 2 is closed, the first shielding element 31 and the second shielding element 32 overlap, achieving a tight and compacted state to form a radio frequency shielding assembly, preventing radio frequency signals from leaking from the mating point between the housing body 1 and the cabinet door 2. The housing device of this application can be used in various possible environments, such as vending machines, medicine dispensing cabinets, file management cabinets, and consumable storage cabinets.

[0022] like Figure 2-4As shown, the housing body 1 includes an outer shell 11, an inner shell 12, and a heat-insulating layer 13 filled between them. The outer shell 11 may include a U-shaped shell 111, a rear plate 112, and a bottom plate 113, forming a three-dimensional structure with one open side. The open side can be sealed to the cabinet door 2. A liner 1131 for increasing strength and rigidity may also be arranged on the bottom plate 113. The U-shaped shell 111 can be integrally formed, for example, a thin steel plate with a thickness ≤0.35mm can be formed in one piece. The back of the outer shell 11 is formed by the interlocking structure of the rear plate 112 and the U-shaped shell 111, and the bottom of the outer shell 11 is formed by the assembly of the bottom plate 113 and the U-shaped shell 111, so that the outer shell of the housing body 1 forms a sealed structure. Considering the shielding effect of the metal and its exposure to the environment, the U-shaped shell 111, the rear plate 112, and the bottom plate 113 can all be made of coated metal plates.

[0023] Since the outer shell 11 is made of a metal plate with a shielding effect, the inner shell 12 can be made of either a thin metal plate, such as a steel plate or an aluminum plate, or a non-metallic plate, such as a plastic plate. When made of a thin metal plate, the inner shell 12 is preferably made of spliced ​​metal plates. When made of plastic plates such as ABS or HIPS, its thermoplasticity can be fully utilized, and the entire inner shell 12 can be made using a vacuum forming process. Furthermore, considering the shielding effect at the junction of the housing body 1 and the cabinet door 2, the main body of the inner shell 12 can be made of a plastic plate, and the opening of the housing body can be assembled using metal materials such as aluminum profiles. When the internal environment of the housing is in a refrigerated state, this splicing structure can also serve to break the cold bridge and prevent the cold energy inside the housing from being transferred outward and causing leakage.

[0024] like Figure 1 and 7 As shown, the housing device of this application may also be equipped with a door lock 4 and an intelligent controller 5. An upper hinge 33 and a lower hinge 34 are installed at the upper and lower ends of the axial side of the housing body 1. The pivots on the hinges are inserted into the pivot holes on the axial side of the cabinet door 2, enabling the cabinet door 2 to rotate within the pivot holes of the upper hinge 33 and the lower hinge 34. Figure 2 As shown, the housing 1 also includes a communication device 14 for transmitting radio frequency signals and a light source 15 for illumination. Grooves can be directly formed on the inner shell 12 for mounting the communication device 14 and the light source 15, which is not only aesthetically pleasing but also avoids inconvenience in handling items. Figure 3 As shown, the communication device 14 and the light source 15 can also be covered by a decorative panel 16, which can also solve the problems of inconvenience and unsightly appearance. The inner shell 12 can also be provided with a slot 17, which can be used to hold trays or drawers at different heights. The slot 17 can be formed in one piece by vacuum forming with the inner shell 12. Figure 8As shown, the cabinet door 2 may include a metal door frame 21 and a front panel 22 covered with a third shielding element 23 to prevent radio frequency signal leakage. The front panel 22 is mounted on the metal door frame 21, and a flexible and deformable second shielding element 32 is attached to the mating point between the metal door frame 21 and the housing body 1. The front panel 22 may be a transparent, semi-transparent, or opaque panel.

[0025] like Figure 6 As shown, the metal door frame 21 can be constructed from aluminum alloy profiles. The metal door frame 21 may include an opening-side profile 211, a pivot-side profile 212, an upper profile 213, a lower profile 214, and corner connectors 215 for fastening adjacent profiles. The upper profile 213 and lower profile 214 have pivot holes for accommodating the hinge assembly. Considering that direct friction between the aluminum profile pivot holes and the hinge pivot could affect service life and that opening and closing the cabinet door 2 would be difficult, an upper pivot sleeve 216 can be installed on the upper profile 213, and a lower pivot sleeve 217 can be installed on the lower profile 214. A human-machine interface device 25 can also be optionally installed on the cabinet door 2, such as a display, fingerprint recognition, NFC card reader, or other artificial intelligence devices. The human-machine interface device 25 can be installed not only on the front panel 22 but also in a pre-set opening on the front panel 22.

[0026] like Figure 7 As shown, the intelligent controller 5 can be installed on the top or bottom of the housing body 1. The intelligent controller 5 may include a radio frequency generator, a microcontroller unit (MCU), and a remote module. The radio frequency generator is connected to the communication device 14 inside the housing body 1 and can transmit and receive radio frequency signals. Based on the radio frequency signals emitted by the communication device, the MCU can detect the presence of radio frequency tags, determine whether an item is inside the housing, and control the door lock 5 via a human-machine interface module. Furthermore, the remote module can transmit information about the housing to the cloud for analysis, processing, and control by the remote control unit.

[0027] Based on the above, a refrigeration module 6 controlled by an intelligent controller 5 can be added. The refrigeration module mainly consists of a heat dissipation unit 61 placed outside the housing body 1 and a refrigeration unit 62 placed inside the housing body 1. The heat dissipation unit 61 contains a compressor, a radiator, a throttling valve or capillary tube, and a fan for forced convection. The refrigeration unit 62 contains an evaporator or a fan for forced convection. In the heat dissipation unit 61, the refrigerant is compressed by the compressor and enters the radiator to exchange heat with the environment of the housing. This heat exchange can also be achieved using forced convection heat exchange with a fan. The refrigerant absorbs the cold air from the environment, expands through the throttling valve or capillary tube, and circulates to the evaporator of the refrigeration unit 62. The evaporator exchanges heat with the air inside the housing, and the refrigerant absorbs the heat from the air inside the housing, causing the air temperature inside the housing to drop, thus achieving cooling. The refrigerant circulates out of the evaporator of the refrigeration unit 62 and returns to the suction port of the compressor in the heating unit 61, where it is compressed again, thus forming a repeated heat exchange cycle to cool the air inside the housing.

[0028] The accommodating device with radio frequency shielding components of this application can form a complete shielding structure consisting of a shell 11, a first shielding component 31, a second shielding component 32, a metal door frame 21, a third shielding component 23, a metal door frame 21, a second shielding component 32, a first shielding component 31, and a shell 11, which has the technical advantages of good shielding effect and simple structure.

[0029] Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit this application. Any person skilled in the art to which this application pertains 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 determined by the scope defined in the appended claims.

Claims

1. A housing device with radio frequency shielding components, comprising a housing body with radio frequency shielding function and a cabinet door, characterized in that, An RF shielding assembly is provided between the housing body and the cabinet door. The RF shielding assembly includes a first shielding member and a second shielding member, which are respectively disposed on the housing body and the second shielding member is disposed on the cabinet door. At least one of the first shielding member and the second shielding member is adhered to at least one of the housing body and the cabinet door. Alternatively, a mounting groove is provided at the mounting location of at least one of the housing body and the cabinet door, and at least one of the first shielding member and the second shielding member is disposed in the mounting groove.

2. The receiving device according to claim 1, characterized in that, The housing body includes an outer shell, an inner shell, and a heat-insulating layer filled between the two, wherein at least one of the outer shell and the inner shell is a metal plate with a shielding function.

3. The receiving device according to claim 2, characterized in that, The outer shell includes a U-shaped shell, a rear plate, and a bottom plate, forming a three-dimensional structure with one open side.

4. The receiving device according to claim 1, 2, or 3, characterized in that, The cabinet door includes a door frame and a front panel with a third shielding component, the front panel being mounted on the door frame.

5. The receiving device according to claim 4, characterized in that, The cabinet door is also equipped with a human-computer interaction device.

6. The receiving device according to claim 1, 2, 3, or 5, characterized in that, It also includes an intelligent controller, which includes a radio frequency generator connected to a communication device within the housing.

7. The receiving device according to claim 6, characterized in that, The intelligent controller also includes a microcontroller unit, which determines whether an item is inside the containing device based on radio frequency signals emitted by the communication device.

8. The receiving device according to claim 7, characterized in that, The intelligent controller also includes a remote module, which can transmit information to the cloud for analysis, processing, and control by a remote control unit.

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