Pantograph-catenary electric arc electromagnetic shielding shell

Abstract

The utility model discloses a pantograph-catenary electric arc electromagnetic shielding shell, which belongs to the technical field of pantograph-catenary electromagnetic shielding, and comprises a reinforcing layer, a hollow frame layer and a hard shell layer which are sequentially arranged from inside to outside, and a silicon dioxide polypropylene coating is arranged in an accommodating groove of the hollow frame layer; and pantograph-catenary electromagnetic interference protection can be carried out on equipment installed in the shielding shell so as to protect normal operation of the equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of pantograph-net electromagnetic shielding, and in particular relates to a pantograph-net arc electromagnetic shielding shell. Background Art

[0002] In recent years, with the continuous advancement of high-speed rail technology, train speeds have increased, and the associated occurrence of pantograph-catenary arcing has become increasingly serious. The formation of pantograph-catenary arcing is accompanied by strong electromagnetic radiation, generating serious electromagnetic pollution. Electromagnetic interference from pantograph-catenary arcing can affect the normal operation of onboard equipment and surrounding sensitive electronic components, and in severe cases, even damage equipment. Therefore, finding ways to suppress electromagnetic interference from pantograph-catenary arcing is an urgent issue. Utility Model Content

[0003] The purpose of the present utility model is to address the above-mentioned deficiencies in the prior art and to provide a pantograph-catenary arc electromagnetic shielding shell to solve the problem of electromagnetic interference of the pantograph-catenary arc in electric locomotives.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] A bow-net arc electromagnetic shielding shell comprises a reinforcement layer, a hollow frame layer and a hard outer shell layer which are sequentially arranged from the inside to the outside; a silicon dioxide polypropylene coating is arranged in a receiving groove of the hollow frame layer.

[0006] In some embodiments, the reinforcement layer is made of a mixture of polyimide fiber and cement.

[0007] In some embodiments, the hollow frame layer is made of aluminum material.

[0008] In some embodiments, the hard outer shell layer is made of unsaturated resin material.

[0009] In some embodiments, the method further includes a concrete outer shell layer disposed inside the reinforcement layer.

[0010] In some embodiments, the hollow frame layer includes a plurality of sub-frames distributed in an array, and the sub-frames include a plurality of partitions. A web is fixedly connected between two adjacent partitions, and a receiving groove is formed between the web and the partition.

[0011] In some embodiments, the hollow frame layer includes three rows of sub-frames distributed along the thickness direction of the shielding shell.

[0012] In some embodiments, the partition is octagonal, four adjacent sub-frames enclose a filling port, two adjacent sub-frames and a reinforcement layer enclose a filling port, and two adjacent sub-frames and a hard shell layer enclose a filling port.

[0013] In some embodiments, the shielding shell is provided with a mounting slot for mounting a device and a port box for connecting an external device, and the port box includes an interface for connecting an external device.

[0014] The utility model provides a pantograph arc electromagnetic shielding shell, which has the following beneficial effects:

[0015] The shielding shell includes a reinforcement layer, a hollow frame layer and a hard outer shell layer arranged in sequence from the inside to the outside. The receiving groove of the hollow frame layer is provided with a silicon dioxide polypropylene coating; it can provide bow-net electromagnetic interference protection for the equipment installed in the shielding shell to protect the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of a pantograph arc electromagnetic shielding shell of the utility model;

[0017] Figure 2 This is a schematic structural diagram of a subframe of a pantograph arc electromagnetic shielding shell according to the present invention;

[0018] Figure 3 This is a schematic diagram of the installation of a pantograph arc electromagnetic shielding shell of the utility model;

[0019] Reference numerals:

[0020] 1-shielding shell, 11-reinforcement layer, 12-hollow frame layer, 121-subframe, 1211-partition, 1212-web, 122-accommodation groove, 13-hard shell layer, 14-concrete shell layer, 2-port box, 3-contour laser scanner, 4-laser diffuse reflection image receiver. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limiting this application. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0023] If similar descriptions of "first\second\third" appear in the application documents, the following explanation will be added. In the following description, the terms "first\second\third" are only used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0025] The embodiment of the present application provides a pantograph arc electromagnetic shielding shell, Figure 1 This is a cross-sectional view of a pantograph arc electromagnetic shielding shell of the utility model, as shown in FIG. Figure 1 As shown, the shielding shell 1 includes a reinforcement layer 11, a hollow frame layer 12 and a hard outer shell layer 13 arranged in sequence from the inside to the outside, and a silicon dioxide polypropylene coating is provided in the receiving groove 122 of the hollow frame layer 12.

[0026] In the embodiment of the present application, the hard shell layer 13 is made of an unsaturated resin material. On the one hand, the hard shell layer 13 protects the hollow frame layer 12, and on the other hand, the hard shell layer 13 reflects electromagnetic waves. The hollow frame layer 12 is made of aluminum material. On the one hand, it increases the strength of the shielding shell 1. On the other hand, the hollow frame layer 12 refracts the electromagnetic waves passing through the hard shell layer 13. The refracted electromagnetic waves are weakened by the silica polypropylene in the accommodating cavity and then dissipate to the reinforcing layer 11. The reinforcing layer 11 is made of a mixture of polyimide fiber and cement. The polyimide fiber in the reinforcing layer 11 absorbs the dissipated electromagnetic waves, and the cement in the reinforcing layer 11 conducts the absorbed electromagnetic waves to the periphery of the shielding shell 1. It can protect the equipment installed in the shielding shell 1 from bow-net electromagnetic interference to protect the normal operation of the equipment.

[0027] In some embodiments, as Figure 1 As shown, the concrete shell layer 14 is further included and arranged on the inner side of the reinforcement layer 11 .

[0028] In the embodiment of the present application, the concrete shell layer 14 is used to resist and isolate the electromagnetic waves passing through the reinforcement layer 11, further providing electromagnetic interference protection capability, and ensuring that the equipment in the shielding shell 1 can operate normally.

[0029] In some embodiments, as Figure 1 、 Figure 2As shown, the hollow frame layer 12 includes a plurality of sub-frames 121 distributed in an array. The sub-frames 121 include a plurality of partitions 1211 . A web 1212 is fixedly connected between two adjacent partitions 1211 . A receiving groove 122 is formed between the web 1212 and the partition 1211 .

[0030] In the embodiment of the present application, a certain number of sub-frames 121 can be configured according to the length and thickness of a certain side of the shielding shell 1, and all sub-frames 121 can be arranged in an array to form the hollow frame layer 12. The receiving groove 122 formed between the web 1212 and the partition 1211 can be filled with silica polypropylene coating.

[0031] In some embodiments, the hollow frame layer 12 includes three rows of sub-frames 121 distributed along the thickness direction of the shielding shell 1 .

[0032] In some embodiments, as Figure 1 As shown, the partition 1211 is octagonal, four adjacent sub-frames 121 enclose an injection port, two adjacent sub-frames 121 and the reinforcement layer 11 enclose an injection port, and two adjacent sub-frames 121 and the hard shell layer 13 enclose an injection port.

[0033] In an embodiment of the present application, the partition 1211 is octagonal, so that four adjacent sub-frames 121 form an injection port, two adjacent sub-frames 121 and the reinforcing layer 11 form an injection port, and two adjacent sub-frames 121 and the hard shell layer 13 form an injection port, which facilitates the filling of the silica polypropylene coating into the receiving groove 122 through the injection port.

[0034] In some embodiments, as Figure 3 As shown, the shielding shell 1 is provided with a mounting groove for mounting equipment (not shown in the figure) and a port box 2 for connecting external equipment. The port box 2 includes an interface for connecting external equipment (not shown in the figure).

[0035] In an embodiment of the present application, a mounting slot for installing a device and a port box 2 for connecting an external device are provided on the shielding shell 1, and the port box 2 includes an interface for connecting an external device. The device can be installed on the shielding shell 1 through the mounting slot, and the connection between the device and the external device can be achieved through the interface, wherein the interface can include a power interface, a wireless communication interface, and a spare wired communication interface. Exemplarily, the shielding shell 1 is used to install a detection device for detecting whether the pantograph is damaged. The detection device includes a contour laser scanner 3, a laser diffuse reflection image receiver 4, and an edge processor. In a specific implementation, a mounting slot for installing the contour laser scanner 3 and a mounting slot for installing the laser diffuse reflection image receiver 4 are provided on the shielding shell 1, and the edge processor is installed inside the shielding shell 1. After installation, the contour laser scanner 3, the laser diffuse reflection image receiver 4, and the edge processor are all electrically connected to the external power supply through the power interface corresponding to the port box 2, and the edge processor is communicated with the background system through the wireless communication interface.

[0036] Although the specific embodiments of the utility model are described in detail in conjunction with the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Within the scope described by the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A pantograph arc electromagnetic shielding shell, characterized in that: The shielding shell comprises a reinforcement layer, a hollow frame layer and a hard outer shell layer which are sequentially arranged from the inside to the outside. A silicon dioxide polypropylene coating is arranged in the receiving groove of the hollow frame layer.

2. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The reinforcement layer is prepared by mixing polyimide fiber and cement.

3. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The hollow frame layer is made of aluminum material.

4. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The hard outer shell layer is made of unsaturated resin material.

5. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The utility model also includes a concrete outer shell layer arranged on the inner side of the reinforcement layer.

6. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The hollow frame layer includes a plurality of sub-frames distributed in an array. The sub-frames include a plurality of partitions. A web is fixedly connected between two adjacent partitions. A receiving groove is formed between the web and the partition.

7. The pantograph arc electromagnetic shielding shell according to claim 6, characterized in that: The hollow frame layer includes three rows of sub-frames distributed along the thickness direction of the shielding shell.

8. The pantograph arc electromagnetic shielding shell according to claim 6, characterized in that: The partition is octagonal, four adjacent sub-frames enclose a filling port, two adjacent sub-frames and a reinforcement layer enclose a filling port, and two adjacent sub-frames and a hard outer shell layer enclose a filling port.

9. The pantograph arc electromagnetic shielding shell according to claim 1, characterized in that: The shielding shell is provided with a mounting groove for mounting equipment and a port box for connecting external equipment. The port box includes an interface for connecting external equipment.

Images