Shielded cabinet with RFID identification and intelligent distribution device
The shielding cotton structure, with its clamp-on fixing and sloping design, solves the problems of small contact area and detachment when the shielding cabinet door is closed, achieving better shielding effect and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU TEXTILE COLLEGE
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-05
Smart Images
Figure CN224329824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material distribution technology, specifically a shielded cabinet with RFID identification and an intelligent distribution device. Background Technology
[0002] With the surge in demand for efficient material (consumable) management in factories, hospitals, warehouses, and other settings, coupled with the rapid development of IoT technology, automated guided vehicles (AGVs) capable of completing transfer and transportation in various scenarios have emerged in the market. By integrating delivery cabinets with these vehicles, material turnover efficiency can be improved, and labor costs can be reduced.
[0003] To improve material inventory and turnover accuracy, shielded cabinets equipped with RFID (Radio Frequency Identification) technology have emerged to replace traditional delivery cabinets. These cabinets utilize RFID technology for automatic material inventory. By installing shielding cotton on the cabinet door and frame, the cotton effectively blocks RFID signals inside the cabinet when the door is closed, preventing leakage.
[0004] However, some shielding cabinet door structures on the market currently only have line contact when the shielding cotton is squeezed when closed. For example, patent CN219592975U discloses a signal shielding structure for RFID smart cabinets, which uses a double V-shaped cotton structure as the shielding structure. When the cabinet door is closed, the V-shaped cotton structure only has line contact when squeezed, resulting in a small contact area and a potential risk of leakage, leading to poor shielding effect. Furthermore, the shielding cotton on the cabinet door is usually glued on. During frequent opening and closing of the cabinet door, there is the possibility of human contact and collision or long-term aging and failure of the adhesive, which can cause the shielding cotton to fall off, leading to shielding leakage. Utility Model Content
[0005] The purpose of this invention is to provide a shielded cabinet with RFID identification and an intelligent delivery device to solve the problems of poor shielding effect and easy detachment of shielded cotton when the cabinet door is closed, which are caused by the small contact area.
[0006] The technical solution of this utility model is:
[0007] A shielded cabinet with RFID identification includes a cabinet body and a cabinet door hinged to the cabinet body, and also includes an inner sealing plate, a first shielding cotton, and a second shielding cotton. The inner sealing plate is fixedly connected to the inner side wall of the cabinet door. The first shielding cotton is arranged circumferentially along the inner sealing plate, and the first shielding cotton has an mounting surface and a first mating slope, forming an angle between the mounting surface and the first mating slope. The mounting surface is located between the inner sealing plate and the cabinet door, and is clamped and fixed by the inner sealing plate and the cabinet door. The second shielding cotton is arranged around the door frame of the cabinet body and is fixedly attached to the door frame. The side of the second shielding cotton facing the cabinet door has a second mating slope, which is used to be parallel and attached to the first mating slope when the cabinet door is closed.
[0008] Preferably, as a further improvement of this utility model, the included angle formed between the mounting surface and the first mating inclined surface is β, and 20°≤β≤70°.
[0009] Preferably, as a further improvement of this utility model, β is 30°.
[0010] Preferably, as a further improvement of this utility model, the shielding cotton includes a metal shielding cloth and foam, with the foam filling the metal shielding cloth.
[0011] Preferably, as a further improvement of this utility model, the metal shielding cloth comprises a polyester fiber cloth and a metal coating attached to the polyester fiber cloth.
[0012] This utility model also discloses an intelligent delivery device, including a mobile vehicle body and the aforementioned shielded cabinet with RFID identification, and the shielded cabinet body is disposed on the mobile vehicle body.
[0013] Preferably, as a further improvement of this utility model, the mobile vehicle body is an AGV trolley or an electric drive chassis.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The previous adhesive-based method of fixing the shielding cotton has been changed to a clamp-on method, eliminating the risk of adhesive detachment. At the same time, since the first shielding cotton installed at the cabinet door is pressed and fixed by the inner sealing plate of the cabinet door, it can also avoid the problem of the first shielding cotton falling off due to human contact when the cabinet door is opened, thus preventing shielding failure. Furthermore, the second shielding cotton fixed inside the cabinet door frame uses an inclined surface to make contact with the first shielding cotton. This ensures that the first and second shielding cotton remain parallel and close together when the cabinet door is closed, resulting in a larger contact area when the cotton is compressed. Compared with line contact, surface contact is more conducive to shielding effect. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the overall structure of the intelligent delivery device in this embodiment of the present invention.
[0017] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure at point AA.
[0018] Figure 3 This utility model Figure 2 A magnified view of part B in the diagram.
[0019] Figure 4 This is a schematic cross-sectional view of the first shielding cotton in an embodiment of this utility model.
[0020] Figure 5 This is a schematic cross-sectional view of the second shielding cotton in an embodiment of this utility model.
[0021] Figure 6 This is a schematic diagram of the cabinet door structure in an embodiment of this utility model.
[0022] Figure 7 This utility model Figure 5 A cross-sectional view of the structure at point CC.
[0023] Figure 8 This is a schematic diagram of the structure of the first shielding surface in an embodiment of this utility model.
[0024] Figure 9 This is a schematic diagram of the structure of the second shielding surface in an embodiment of this utility model. Detailed Implementation
[0025] The following is combined Figures 1-9 The specific embodiments of this utility model will be described in detail below. In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.
[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of a utility model, unless otherwise stated, "a plurality of" means two or more.
[0027] Example
[0028] like Figures 1-9 As shown, this utility model embodiment provides a shielding cabinet with RFID identification, including a shielding cabinet body 1 and a cabinet door 2 hinged to the shielding cabinet body 1, and also includes an inner sealing plate 3, a first shielding cotton 4 and a second shielding cotton 5; the inner sealing plate 3 is fixedly connected to the inner side wall of the cabinet door 2; the first shielding cotton 4 is arranged circumferentially along the inner sealing plate 3, and the first shielding cotton 4 has an mounting surface 41 and a first mating inclined surface 42, forming an angle between the mounting surface 41 and the first mating inclined surface 42, the mounting surface 41 is located between the inner sealing plate 3 and the cabinet door 2, and is clamped and fixed by the inner sealing plate 3 and the cabinet door 2; the second shielding cotton 5 is arranged around the door frame of the shielding cabinet body 1 and is fixedly attached to the door frame, and a second mating inclined surface 51 is provided on the side of the second shielding cotton 5 facing the cabinet door 2, the second mating inclined surface 51 is used to be parallel and attached to the first mating inclined surface 42 when the cabinet door 2 is closed.
[0029] In this embodiment, the first shielding cotton 4 is fixed by clamping the inner sealing plate 3 and the cabinet door 2, so that it is not easy to fall off due to human collision during frequent opening of the cabinet door 2, which would lead to shielding failure. Through the cooperation of the first mating inclined surface 42 on the first shielding cotton 4 and the second mating inclined surface 51 on the second shielding cotton 5, the first mating inclined surface 42 and the second mating inclined surface 51 can be kept parallel and attached when the cabinet door 2 is closed, so that the contact surface between the cotton is larger when compressed. Compared with line contact, surface contact is more conducive to shielding effect.
[0030] When installing the first shielding cotton 4, the inner sealing plate 3 is first used to press down the perimeter of the first shielding cotton 4, and then the inner sealing plate 3 is pulled to the cabinet door 2 with rivets 7, thereby forming a pressing and fixing of the first shielding cotton 4.
[0031] Furthermore, the included angle between the mounting surface 41 and the first mating inclined surface 42 is β, and 20°≤β≤70°. When β is less than 20°, the bending angle of the first mating inclined surface 42 will be too small, making it difficult to form a tight fit with the second mating inclined surface 51 when the cabinet door 2 is closed, resulting in less pressure and easy leakage. When β is greater than 70°, the bending angle of the first mating inclined surface 42 will be too large, resulting in gaps and poor fit when the cabinet door 2 is closed and under pressure. In specific applications, β is preferably 30°.
[0032] Furthermore, such as Figure 4 and Figure 5 As shown, for ease of installation, the corners of the first shielding cotton 4 and the second shielding cotton 5 are connected by beveled surfaces. In actual implementation, the beveled surface is 45° to facilitate angled splicing.
[0033] Specifically, the shielding cotton includes metal shielding cloth and soft foam, with the soft foam filling the metal shielding cloth.
[0034] The metal shielding cloth uses polyester fiber cloth as the base material. After pretreatment, it is electroplated with a metal coating to give it metallic properties. The metal coating is composed of (Cu 0.003 mm + Ni 0.003 mm).
[0035] Example 2
[0036] Reference Figure 1 As shown, this embodiment discloses an intelligent delivery device based on embodiment 1, including a mobile vehicle body 6 and the aforementioned shielded cabinet with RFID identification. The shielded cabinet body 1 is fixed to the top of the mobile vehicle body 6.
[0037] The mobile vehicle 6 can be an AGV (Automated Guided Vehicle) or an electric drive chassis.
[0038] In this embodiment, an intelligent delivery device is formed by combining a mobile vehicle 6 with RFID identification, which can be used for the turnover and requisition of various materials or consumables in various places, and realize the function of automatic inventory of material information.
[0039] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A shielded cabinet with RFID identification, comprising a shielded cabinet body (1) and a cabinet door (2) hinged to the shielded cabinet body (1), characterized in that, Also includes: The inner sealing plate (3) is fixedly connected to the inner side wall of the cabinet door (2); The first shielding cotton (4) is arranged along the circumference of the inner sealing plate (3). The first shielding cotton (4) has an mounting surface (41) and a first mating inclined surface (42). An angle is formed between the mounting surface (41) and the first mating inclined surface (42). The mounting surface (41) is located between the inner sealing plate (3) and the cabinet door (2). The inner sealing plate (3) and the cabinet door (2) are mated and fixed together. The second shielding cotton (5) is set around the door frame of the shielding cabinet body (1) and is fixed to the door frame. The second shielding cotton (5) has a second mating slope (51) on the side facing the cabinet door (2). When the cabinet door (2) is closed, the second mating slope (51) contacts the first mating slope (42).
2. The shielded cabinet with RFID identification according to claim 1, characterized in that, The included angle between the mounting surface (41) and the first mating inclined surface (42) is β, and 20°≤β≤70°.
3. The shielding cabinet with RFID identification according to claim 2, characterized in that, The value of β is 30°.
4. The shielding cabinet with RFID identification according to claim 3, characterized in that, The shielding cotton includes a metal shielding cloth and foam, with the foam filling the metal shielding cloth.
5. The shielded cabinet with RFID identification according to claim 4, characterized in that, The metal shielding cloth includes polyester fiber cloth and a metal coating attached to the polyester fiber cloth.
6. An intelligent delivery device, comprising a mobile vehicle (6), characterized in that, It also includes a shielding cabinet with RFID identification according to any one of claims 1-5, wherein the shielding cabinet body (1) is disposed on the mobile vehicle body (6).
7. The intelligent delivery device according to claim 6, characterized in that, The mobile vehicle body (6) is an AGV trolley or an electric drive chassis.