Electromagnetic shielding linkage device and use method thereof

Abstract

The present invention relates to an electromagnetic shielding linkage device and a method of using the same, which is characterized in that it comprises a shielding cabinet, a linkage shielding component, a shielding filter component and a cooling system, wherein the number of the shielding cabinets is at least two; each of the shielding cabinets is used to place a corresponding shielding body, and a corresponding linkage shielding component is arranged between every two shielding cabinets; the bottom of each shielding cabinet is connected to the outside through the shielding filter component, and the shielding filter component is used to transfer the shielding body in the shielding cabinet with an external interface; the bottom of each shielding cabinet is also provided with the cooling system, and the cooling system is used to cool the shielding body. The present invention has good versatility, is easy to implement and has low cost, and can be widely used in the field of electromagnetic shielding.

Description

Technical Field

[0001] The invention relates to an electromagnetic shielding linkage device and a use method thereof, belonging to the field of electromagnetic shielding. Background Art

[0002] Large scientific facilities based on charged particle accelerators are important basic tools for studying cutting-edge scientific issues in nuclear physics, and have important applications in aerospace, nuclear energy, materials, medicine and population health, environmental pollution control, etc. High energy, high beam intensity and high precision are the future development direction of accelerator devices, but with the advancement of science, the various equipment and auxiliary systems of accelerator devices are gradually developing towards high integration, digitization and automation, making the electromagnetic environment more and more complex. Electromagnetic compatibility issues have become a new challenge facing the development of accelerator devices.

[0003] In order to effectively alleviate the impact of electromagnetic radiation from electronic equipment, shielding cabinets are generally used for shielding. However, in the process of accelerator system integration, a system or equipment is often faced with the problem that it is impossible to install it in a shielding cabinet. The use of customized cabinets will lead to problems such as long cycle, high price, difficult layout and interface insufficiency. The usual practice is to remove the side panel of the shielding cabinet and use two or more shielding cabinets close together to solve this problem. However, due to the flatness of the ground, the error of the facade of the shielding cabinet and the gaps and holes in the interconnecting cables, the electromagnetic radiation of the internal equipment of the system will leak and affect the operation of other equipment. At the same time, it will also couple the electromagnetic radiation outside the system and affect the operation of the internal equipment. Take the power supply system as an example. As an important system component of the accelerator device, the stability and accuracy of the output current of hundreds of power supply systems directly affect the quality of the beam. Therefore, in order to alleviate the electromagnetic environment of the accelerator device and improve the reliability of the system itself, the electromagnetic protection between systems or between equipment is extremely important.

[0004] However, the interconnection between the existing accelerator systems usually ignores its own electromagnetic compatibility and electromagnetic protection, and the gradual deterioration of the electromagnetic environment poses a threat to the safe and efficient operation of the system. Therefore, in order to effectively solve the gap and hole effects caused by the interconnection of systems or large equipment in shielded cabinets, a highly versatile, highly reliable and high-performance electromagnetic shielding linkage device is needed to alleviate environmental electromagnetic radiation and improve the electromagnetic compatibility reliability between systems. Summary of the invention

[0005] In view of the above problems, an object of the present invention is to provide an electromagnetic shielding linkage device with high versatility, high reliability and high performance and a method of using the same.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical scheme: an electromagnetic shielding linkage device, comprising a shielding cabinet, a linkage shielding component, a shielding filter component and a cooling system, wherein the number of the shielding cabinets is at least two;

[0007] Each of the shielding cabinets is used to place a corresponding shielding body, and a corresponding linked shielding component is arranged between every two shielding cabinets; the bottom of each shielding cabinet is connected to the outside through the shielding filter component, and the shielding filter component is used to transfer the shielding body in the shielding cabinet with the external interface; the bottom of each shielding cabinet is also provided with the cooling system, and the cooling system is used to cool the shielding body.

[0008] Preferably, the shielding cabinet comprises a cabinet body, a cabinet door and a locking device;

[0009] The front side of the cabinet body is movably connected to the cabinet door, and the cabinet door is provided with the locking device.

[0010] Preferably, an electronic display screen is also provided on the cabinet door, and a shielding film is attached to the front side of the electronic display screen.

[0011] Preferably, each of the linked shielding assemblies comprises a keel, a soft connection assembly and a first conductive sealing gasket, wherein the keel comprises a first keel and a second keel;

[0012] The first keels are respectively provided at both ends of the soft connection component, and the tops of both ends of each of the first keels are respectively fixedly connected to the corresponding first conductive sealing gasket and second keel in sequence from the inside to the outside, and each of the second keels is fixedly connected to the cabinet body of the corresponding shielding cabinet.

[0013] Preferably, the first keel, the second keel and the soft connection assembly are all made of metal materials.

[0014] Preferably, the soft connection component adopts a frame structure matching the size of the cabinet, the first keel adopts a frame structure matching the size of the soft connection component, the second keel adopts a block structure, and the connection surfaces between the first keel and the second keel and the soft connection component are not painted.

[0015] Preferably, the shielding filter assembly comprises an interface board and a filter, wherein the filter comprises a power filter and a signal filter;

[0016] The interface board is fixedly arranged at the bottom of the cabinet, and the power filter and the signal filter are fixedly arranged on the interface board. The power filter is used to supply power to the shielding body, and the signal filter is used to provide a signal to the shielding body.

[0017] Preferably, the cooling system comprises a second conductive sealing gasket, a flange, a water pipe and a conductive rubber ring;

[0018] The second conductive sealing gasket is fixedly arranged at the bottom of the cabinet, and one side of the second conductive sealing gasket is fixedly connected to one side of the interface plate; the water inlet and the water outlet of the water pipe are respectively fixedly arranged on the second conductive sealing gasket through the two flanges, and the water inlet and the water outlet of the water pipe are respectively connected to the external water tank for cooling the shielding body; the inner side of each flange is provided with a sealing groove for setting the corresponding conductive rubber ring.

[0019] A method for using an electromagnetic shielding linkage device, comprising:

[0020] Determine the number of shielding cabinets and interlocking shielding components;

[0021] Placing each shielding body in a corresponding shielding cabinet, and connecting each shielding cabinet into one through a corresponding linked shielding component;

[0022] The shielding body in the shielding cabinet is connected to the external interface through the shielding filter component to ensure the shielding effectiveness of the shielding body;

[0023] Connect the cooling system to an external water tank to cool the shielding body in the shielding cabinet.

[0024] Preferably, the method of placing each shielding body in a corresponding shielding cabinet and connecting each shielding cabinet into one through a corresponding linked shielding assembly comprises:

[0025] Open the doors of each shielding cabinet, place the corresponding shielding body in the corresponding shielding cabinet, close each cabinet door, and lock it with a locking device;

[0026] The soft connection components of each linked shielding component are sleeved with the corresponding first keel, and the two ends of each first keel are respectively fixedly connected to the corresponding shielding cabinet through the corresponding first conductive sealing gasket and the second keel by screws, so that each shielding cabinet is connected as a whole.

[0027] The present invention adopts the above technical solution, which has the following advantages:

[0028] 1. Since the present invention is provided with a plurality of linked shielding components, it can be used for interconnection between two or even multiple shielding cabinets, effectively suppressing the electromagnetic interference of electronic equipment from being emitted to the outside through gaps or holes, reducing the use of filter connectors in the shielding process, and improving the reliability of the system.

[0029] 2. The present invention uses a strong hinge to connect the cabinet body and the cabinet door. When the cabinet door is locked, the strong hinge exerts a pulling force on the door and can be tightly combined with the second conductive sealing gasket.

[0030] 3. The present invention can not only realize high-performance electromagnetic shielding, but more importantly, it adopts soft connection components of metal materials to realize communication interconnection between systems or electronic devices. It can not only solve the problem of electromagnetic leakage due to gaps and holes caused by the fact that a set of systems or equipment cannot be installed in one shielding cabinet and two shielding cabinets are placed side by side, but also can greatly reduce the use of filtering connectors and improve system reliability (the fewer devices between electronic devices, the higher the system reliability). It has good versatility, is easy to implement and low cost, has strong engineering application value, and can be widely used in the field of electromagnetic shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an electromagnetic shielding linkage device provided by one embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the structure of a linked shielding assembly provided by an embodiment of the present invention, wherein: Figure 2 (a) is a schematic diagram of the overall structure of the linked shielding assembly. Figure 2 (b) is a schematic diagram of the structure of the soft connection component;

[0033] Figure 3 It is a structural schematic diagram of a shielding filter assembly and a cooling system provided by an embodiment of the present invention;

[0034] Figure 4 It is a schematic structural diagram of a flange and a conductive rubber ring in a cooling system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0036] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0037] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0038] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside", "outside", "inner side", "outer side", "below", "above", etc. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0039] The electromagnetic shielding linkage device and the use method thereof provided in the embodiments of the present invention relate to the fields of interconnection between multiple devices in an accelerator device, interconnection between systems, signal transmission, electromagnetic shielding, etc., and are mainly an electromagnetic shielding linkage device for expansion and poor ground flatness. It is provided with a plurality of shielding cabinets 1 and a linkage shielding assembly 2, which can effectively realize the shielding interconnection between a single multi-device interconnection system and multiple identical devices, efficiently suppress the contribution of electromagnetic radiation of the equipment to environmental noise, effectively improve the electromagnetic compatibility reliability between systems, reduce electromagnetic leakage and electromagnetic coupling problems caused by the aperture effect of the interconnection system, and have important due value for electromagnetic protection between systems.

[0040] Example 1

[0041] like Figure 1 , Figure 3 As shown, this embodiment provides an electromagnetic shielding linkage device, including a shielding cabinet 1, a linkage shielding component 2, a shielding filter component 3 and a cooling system 4, wherein the number of the shielding cabinets 1 is at least two.

[0042] Each shielding cabinet 1 is used to place a corresponding shielding body, and a corresponding linkage shielding component 2 is provided between each two shielding cabinets 1. The bottom of each shielding cabinet 1 is connected to the outside through a shielding filter component 3, and the shielding filter component 3 is used to transfer the shielding body in the shielding cabinet 1 with the external interface to play the role of overall shielding. A cooling system 4 is also provided at the bottom of each shielding cabinet 1, and the cooling system 4 is used to cool the shielding body.

[0043] In a preferred embodiment, Figure 1 As shown, the shielding cabinet 1 includes a cabinet body 11, a cabinet door 12, a locking device 13 and an electronic display screen 14, wherein the cabinet body 11 adopts a square structure combining a frame and an aluminum alloy plate because the shielding efficiency of aluminum alloy is higher than that of stainless steel and the aluminum alloy plate is lighter than the stainless steel plate with the same requirements.

[0044] The front side of the cabinet body 11 is movably connected to the cabinet door 12 through a strong hinge 15. The cabinet door 12 is provided with a locking device 13 and an electronic display screen 14. A shielding film 16 is attached to the front side of the electronic display screen 14 to make the electronic display screen 14 tightly adhere to the cabinet body 11. The strong hinge needs to have a certain inward pulling force when the cabinet door 12 is closed.

[0045] In a preferred embodiment, Figure 2 As shown in (a) and (b), each linked shielding component 2 includes a keel 21, a soft connection component 22 and a first conductive sealing gasket 23, wherein the soft connection component 22 is made of metal material, and the soft connection component 22 can adopt a frame structure matching the size of the cabinet 11; the keel 21 includes a first keel 211 and a second keel 212, the first keel 211 adopts a frame structure matching the size of the soft connection component 22, and the second keel 212 adopts a block structure, the first keel 211 and the second keel 212 are both made of metal material, and the connection surface between the first keel 211 and the second keel 212 and the soft connection component 22 is not painted.

[0046] The two ends of the soft connection component 22 are respectively provided with a first keel 211, and the tops of the two ends of each first keel 211 are respectively fixedly connected with a corresponding first conductive sealing gasket 23 and a second keel 212 from the inside to the outside, and each second keel 212 is fixedly connected to the cabinet body 11 of the corresponding shielding cabinet 1 by screws 24, and the spacing between the screws 24 on each second keel 212 is 10cm. Since the contact between metal and metal is not very close, it is easy to form holes and gaps, which affects the overall shielding effectiveness of the shielding cabinet 1. Therefore, the present invention sets a first conductive sealing gasket 23 to compensate for the electromagnetic leakage problem caused by the contact surface.

[0047] In a preferred embodiment, Figure 3 As shown, the shielding filter assembly 3 includes an interface board 31 and a filter 32, wherein the filter 32 includes a power filter and a signal filter.

[0048] The interface board 31 is fixedly arranged at the bottom of the cabinet body 11 of the shielding cabinet 1. A power filter and a signal filter are fixedly arranged on the interface board 31. The power filter is used to supply power to the shielding body, and the signal filter is used to provide a signal to the shielding body to ensure the shielding effectiveness of the shielding cabinet 1. The interface board 31 is also provided with a commonly used external interface.

[0049] In a preferred embodiment, external interfaces such as optical fiber transmission interface, network interface, radio frequency interface, power line interface, 232 serial port interface and / or 485 serial port interface can be set on the interface board 31 according to actual needs to solve the electromagnetic compatibility problem caused by the coupling of power lines and other cables.

[0050] In a preferred embodiment, Figure 3 , Figure 4 As shown, the cooling system 4 includes a second conductive sealing gasket 41, a flange 42, a water pipe 43 and a conductive rubber ring 44, wherein the water pipe 43 is made of metal material.

[0051] The second conductive sealing gasket 41 is fixedly arranged at the bottom of the cabinet body 11 of the shielding cabinet 1. One side of the second conductive sealing gasket 41 is fixedly connected to one side of the interface board 31 by screws. The spacing between the screws on each second conductive sealing gasket 41 is 10 cm. The water inlet 431 and the water outlet 432 of the water pipe 43 are respectively fixedly arranged on the second conductive sealing gasket 41 through two flanges 42. The water inlet 431 and the water outlet 432 of the water pipe 43 are respectively connected to the external water tank for cooling the shielding body. The inner side of each flange 42 is provided with a corresponding annular sealing groove 421 for arranging a corresponding conductive rubber ring 44.

[0052] Example 2

[0053] This embodiment provides a method for using an electromagnetic shielding linkage device, comprising the following steps:

[0054] 1) Determine the quantity of shielding cabinets 1 and linked shielding components 2 according to actual needs.

[0055] 2) Each shielding body is placed in a corresponding shielding cabinet 1, and each shielding cabinet 1 is connected as a whole through a corresponding linkage shielding component 2, specifically:

[0056] 2.1) Open the cabinet door 12 of each shielding cabinet 1 , place the corresponding shielding body in the corresponding shielding cabinet 1 , close each cabinet door 12 , and lock it with the locking device 13 .

[0057] 2.2) The soft connection components 22 of each linkage shielding component 2 are sleeved with the corresponding first keel 211, and the two ends of each first keel 211 are respectively fixedly connected to the corresponding shielding cabinet 1 through the corresponding first conductive sealing gasket 23 and the second keel 212 by screws, so that each shielding cabinet 1 is connected as a whole.

[0058] 3) The shielding body in the shielding cabinet 1 is connected to the external interface through the shielding filter component 3 to ensure the shielding effectiveness of the shielding body.

[0059] 4) Connect the cooling system 4 to an external water tank to cool the shielding body in the shielding cabinet 1.

[0060] The above embodiments are only used to illustrate the present invention, wherein the structure, connection mode and manufacturing process of each component may be changed. Any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An electromagnetic shielding linkage device, characterized in that: It includes a shielding cabinet, a linked shielding component, a shielding filter component and a cooling system, wherein the number of the shielding cabinets is at least two; Each of the shielding cabinets is used to place a corresponding shielding body, and a corresponding linked shielding assembly is provided between each two of the shielding cabinets; the bottom of each of the shielding cabinets is connected to the outside through the shielding filter assembly, and the shielding filter assembly is used to transfer the shielding body in the shielding cabinet to the external interface; the bottom of each of the shielding cabinets is also provided with the cooling system, and the cooling system is used to cool the shielding body; The shielding cabinet comprises a cabinet body, a cabinet door and a locking device; The front side of the cabinet body is movably connected to the cabinet door, and the cabinet door is provided with the locking device; Each of the linked shielding components comprises a keel, a soft connection component and a first conductive sealing gasket, wherein the keel comprises a first keel and a second keel, and the first keel, the second keel and the soft connection component are all made of metal materials; The first keels are respectively provided at both ends of the soft connection assembly, and the tops of both ends of each of the first keels are respectively fixedly connected to the corresponding first conductive sealing gasket and second keel in sequence from the inside to the outside, and each of the second keels is fixedly connected to the cabinet body of the corresponding shielding cabinet; The soft connection component adopts a frame-shaped structure that matches the size of the cabinet, the first keel adopts a frame-shaped structure that matches the size of the soft connection component, the second keel adopts a block structure, and the connection surfaces between the first keel and the second keel and the soft connection component are not painted.

2. An electromagnetic shielding linkage device as claimed in claim 1, characterized in that: The cabinet door is also provided with an electronic display screen, and the front side of the electronic display screen is provided with a shielding film.

3. The electromagnetic shielding linkage device according to claim 1, characterized in that: The shielding filter assembly includes an interface board and a filter, wherein the filter includes a power filter and a signal filter; The interface board is fixedly arranged at the bottom of the cabinet, and the power filter and the signal filter are fixedly arranged on the interface board. The power filter is used to supply power to the shielding body, and the signal filter is used to provide a signal to the shielding body.

4. An electromagnetic shielding linkage device as claimed in claim 3, characterized in that: The cooling system comprises a second conductive sealing gasket, a flange, a water pipe and a conductive rubber ring; The second conductive sealing gasket is fixedly arranged at the bottom of the cabinet, and one side of the second conductive sealing gasket is fixedly connected to one side of the interface plate; the water inlet and the water outlet of the water pipe are respectively fixedly arranged on the second conductive sealing gasket through the two flanges, and the water inlet and the water outlet of the water pipe are respectively connected to the external water tank for cooling the shielding body; the inner side of each flange is provided with a sealing groove for setting the corresponding conductive rubber ring.

5. A method for using the electromagnetic shielding linkage device according to any one of claims 1 to 4, characterized in that: include: Determine the number of shielding cabinets and interlocking shielding components; Placing each shielding body in a corresponding shielding cabinet, and connecting each shielding cabinet into one through a corresponding linked shielding component; The shielding body in the shielding cabinet is connected to the external interface through the shielding filter component to ensure the shielding effectiveness of the shielding body; Connect the cooling system to an external water tank to cool the shielding body in the shielding cabinet.

6. The method for using the electromagnetic shielding linkage device according to claim 5, characterized in that: The method of placing each shielding body in a corresponding shielding cabinet and connecting each shielding cabinet into one through a corresponding linked shielding assembly comprises: Open the doors of each shielding cabinet, place the corresponding shielding body in the corresponding shielding cabinet, close each cabinet door, and lock it with a locking device; The soft connection components of each linked shielding component are sleeved with the corresponding first keel, and the two ends of each first keel are respectively fixedly connected to the corresponding shielding cabinet through the corresponding first conductive sealing gasket and the second keel by screws, so that each shielding cabinet is connected as a whole.

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