Shielding effectiveness testing equipment for conductive rubber

Abstract

The utility model relates to conductive rubber shielding effectiveness test equipment, which comprises a tool and a network analyzer, and is characterized in that the tool comprises a bottom plate and a cover plate detachably connected with the bottom plate, the cover plate is provided with two cavities recessed inwards, and the bottom surface of the cover plate is divided into a shape like a Chinese character'ri 'by the two cavities; a to-be-detected product with the same shape as the bottom surface of the cover plate is arranged between the bottom plate and the cover plate, the bottom surface of the cover plate is arranged to be shaped like the Chinese character'ri ', the size requirement of the to-be-detected product is small, and a to-be-detected sample can be rapidly detected; the whole tool is convenient to move.

Description

Technical Field

[0001] This application relates to the technical field of shielding effectiveness testing, especially a shielding effectiveness testing device for conductive rubber. Background Art

[0002] The effectiveness of a shielding body is measured by shielding effectiveness. Research shows that the electromagnetic shielding effectiveness is mainly affected by the seals of the holes in the shielding body. Due to various inevitable defects on the shielding body, such as various gaps, openings, and incoming and outgoing cables, these defects will have a sharp deteriorating effect on the shielding effectiveness of the shielding body. The factors that truly determine the shielding effectiveness of an actual shielding body are various electrical discontinuity defects, including: gaps, openings, cable penetrations, etc. Gaps on the shielding body are very common. Especially currently, cabinets and plug-in boxes are all assembled, and there are many gaps. If not properly handled, the gaps will sharply deteriorate the shielding effectiveness of the shielding body.

[0003] In some typical cabinets, the holes and gaps on them are mainly divided into four categories: chassis (cabinet) joints, ventilation holes, observation holes and display holes, and connector and chassis joints; among which the interconnection method between shielding bodies mainly uses rubber shielding cables as connection devices to achieve communication connections between shielding bodies. On the one hand, the cables made of rubber materials have excellent electromagnetic shielding effects, and on the other hand, after designing a reasonable shielding body interconnection structure and combining the characteristics of rubber materials, the holes and gaps can be effectively suppressed. Utility Model Content

[0004] The purpose of this application is to provide a shielding effectiveness testing device for conductive rubber to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the technical solution adopted in this application is: a shielding effectiveness testing device for conductive rubber, including a tooling and a network analyzer. The tooling includes a bottom plate and a cover plate detachably connected to the bottom plate. There are two inwardly concave cavities on the cover plate, and the two cavities divide the bottom surface of the cover plate into a "day" shape; a test product with the same shape as the bottom surface of the cover plate is arranged between the bottom plate and the cover plate.

[0006] Compared with the prior art, by setting the bottom surface of the cover plate in a "day" shape, the volume requirement for the required test product is smaller, and the test sample can be quickly detected; the entire tooling is convenient to move.

[0007] There are two mounting holes on the cover plate that are respectively connected to the two cavities in a through manner. A microwave high-frequency connector is installed in each mounting hole, and the microwave high-frequency connector and the network analyzer are connected by a radio frequency cable; a transmitting antenna is arranged in one cavity, and a receiving antenna is arranged in the other cavity; the transmitting antenna and the receiving antenna are respectively electrically connected to the two microwave high-frequency connectors by radio frequency cables.

[0008] A positioning pin is fixedly installed on the bottom plate; a positioning hole adapted to the positioning pin is provided on the cover plate.

[0009] In addition to the technical problems solved by the present invention described above, the technical features constituting the technical solution, and the advantages brought by the technical features of these technical solutions, other technical problems that the present application can solve, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. Description of the Drawings

[0010] Figure 1 is the assembled three-dimensional view of the present application.

[0011] Figure 2 is the top view of the cover plate of the present application.

[0012] Figure 3 is the front view of the product to be tested of the present application.

[0013] Explanation of the reference numerals in the drawings: 01. Bottom plate, 02. Cover plate, 03. Cavity, 04. Mounting hole, 05. Receiving antenna, 06. Transmitting antenna, 07. Positioning pin. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0015] Please refer to Figure 1-3 , the shielding effectiveness test equipment for conductive rubber provided by the present application includes a tooling and a network analyzer. The tooling includes a bottom plate 01 and a cover plate 02 detachably connected to the bottom plate 01 by fasteners. The product to be tested is located between the bottom plate 01 and the cover plate 02. Two inwardly recessed cavities 03 and two mounting holes 04 are provided on the cover plate 02. The two cavities 03 divide the bottom surface of the cover plate 02 into a "day" shape. The two mounting holes 04 are respectively connected to the two cavities 03 in a through manner. A microwave high-frequency connector is installed in each mounting hole 04, and the microwave high-frequency connector is used for electrically connecting to an external network analyzer through a radio frequency cable. A transmitting antenna 06 is provided in one of the cavities 03, and a receiving antenna 05 is provided in the other cavity 03. The transmitting antenna 06 and the receiving antenna 05 are respectively electrically connected to the two microwave high-frequency connectors through radio frequency cables.

[0016] When in use, the sample is processed into the shape of the bottom surface of the cover plate 02 (such as Figure 3As shown), place the sample to be tested on the bottom surface of the cover plate 02, and then fix the base plate 01 and cover plate 02 together with fasteners, securing the product to be tested between the base plate 01 and cover plate 02. Ensure that both the receiving antenna 05 and the transmitting antenna 06 are located within the two through holes on the sample to be tested. Start the network analyzer. When the signal emitted by the transmitting antenna 06 passes through the sample to be tested, the receiving antenna 05 captures the signal (e.g., ...). Figure 2 (As shown). Finally, the shielding effectiveness value is obtained by analysis using a network analyzer. Therefore, smaller products can be tested. This allows for a smaller tooling area. It enables rapid testing of the shielding effectiveness of electromagnetic shielding materials.

[0017] A positioning pin 07 is fixedly installed on the base plate 01. The cover plate 02 is provided with positioning holes that are adapted to the positioning pin 07. The cooperation between the positioning pin 07 and the positioning holes prevents misalignment when the base plate 01 and the cover plate 02 are assembled.

[0018] If the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] The above embodiments are merely descriptions of preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A device for testing the shielding effectiveness of conductive rubber, comprising tooling and a network analyzer, characterized in that, The tooling includes a bottom plate and a cover plate detachably connected to the bottom plate. There are two inwardly recessed cavities provided on the cover plate, and the two cavities divide the bottom surface of the cover plate into a shape like the Chinese character '日'. A test product with the same shape as the bottom surface of the cover plate is arranged between the bottom plate and the cover plate.

2. The shielding effectiveness testing equipment for conductive rubber according to claim 1, characterized in that: There are two mounting holes provided on the cover plate and respectively connected through the two cavities. A microwave high-frequency connector is installed in each mounting hole, and the microwave high-frequency connector and the network analyzer are electrically connected through a radio frequency cable. An emitting antenna is arranged in one of the cavities, and a receiving antenna is arranged in the other cavity. The emitting antenna and the receiving antenna are respectively electrically connected to the two microwave high-frequency connectors through radio frequency cables.

3. The shielding effectiveness testing equipment for conductive rubber according to claim 2, characterized in that: A positioning pin is fixedly installed on the bottom plate; a positioning hole adapted to the positioning pin is provided on the cover plate.

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