Field of the Invention

The present invention relates to an electromagnetic interference (EMI) and electromagnetic compatibility (EMC) penetration panel which provides RF (Radio frequency) suppression for areas where electromagnetic broadcast is not desired and substantially prevents the spread of signals to a certain area.

Present State of the Art

Electromagnetic interference is defined as all types of natural or human-induced disruptive effects or signs at radio frequencies that cause reductions in the performance of electrical and electronic devices, deterioration or malfunction.

We can mention events such as the interference of police radios while listening to the radio, the effect of mobile phones on vehicle ABS systems, leakage in printed circuits, noise in the computer while talking on a mobile phone so as to give an example of electromagnetic interferences we encounter today.

Electromagnetic interference is observed as a result of the electromagnetic environment in which the device is affected. The main causes of electromagnetic interference can be listed as follows; poor quality cables, printed circuit elements, leaks at connection points, resistors, capacitors, inductors, element changes, electromechanical devices, digital circuit elements, mechanical switches.

The first precaution to be taken against the EMI situation can be grounding. The aim of grounding is to reduce the generation of radio frequency voltages that can cause electromagnetic interference. The second precaution that can be taken is shielding. Shielding is configured so as to isolate a certain area from the external electromagnetic environment or to prevent the internal electromagnetic environment from leaking out.

Currently, closed environments/rooms that do not allow RF signals inside and/or do not leak the signals inside are used. It is desirable that there is no RF permeability between the external environment and the indoor environment, particularly in the testing and verification of RF units, or in anechoic chambers or faraday cages where specs of products such as antennas such as gain, pattern are measured. An anechoic chamber design is made by taking additional measures of RFI/EMI (Electromagnetic Interference) in the design of the room so as to provide this requirement. In some applications, products such as cables, hoses, etc. must be taken into the room from the external environment. Signal pollution in the external environment creates current on this cable and hose and assists in carrying these signals inside or outside. This impairs the shielding effectiveness of the room. Penetration Panels are designed so as to prevent this. These panels are not flexible and their shielding efficiency is weak because they are designed according to the relevant cable or hose.

As a result of the research made in the present state of the art, document No TWM542843U is encountered. The present document deals with the cable connector and fixing structure. The relevant document does not contain a flexible cable fixing structure and does not offer a solution for cables of different diameters.

As a result due to the abovementioned disadvantages and the insufficiency of the current solutions regarding the subject matter, a development is required to be made in the relevant technical field.

Aim of the Invention

The invention aims to solve the above mentioned disadvantages by being inspired from the current conditions.

The main aim of the invention is to protect the shielding efficiency while products such as cables and hoses of different diameters are passing through the penetration panel.

Another aim of the invention is to increase shielding efficiency by grounding many products of different sizes through their screens at the same time. In this way, an easy and economical solution is offered without the need for different penetration panels.

In order to fulfill the above-described aims, the invention is an electromagnetic interference (EMI) and electromagnetic compatibility (EMC) penetration panel which provides RF (Radio frequency) suppression for areas where electromagnetic broadcast is not desired, increases the shielding efficiency of products such as cables and hoses of different diameters and substantially prevents the spread of signals to a certain area, characterized by comprising the following; • a mechanical main body that holds the system together and provides connection to the test environment

• moving pin which ensures that the gap is minimized by pressing on the cables passed through the penetration panel by passing through the upper and lower parts of said main body and is a screen between the test environment of the cables and the external environment.

The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings and therefore the evaluation shall be made by taking these figures and the detailed description into consideration.

Figures Clarifying the Invention

Figure 1 is the front general view of the inventive penetration panel.

Figure 2 is the rear general view of the inventive penetration panel.

Figure 3 is an open position view of the penetration panel.

Figure 4 is the view of the cable layout in the penetration panel.

Figure 5 is the view in which the contact surface area of the movable pin and the EMI gasket is increased.

Description of the Part References

1 . Main body

2. Transmission body

3. Perforated guide body

4. Drive element

5. EMI Gasket

6. Cable

10. Moving pin 11. Pin spring

12. Pin body

Detailed Description of the Invention

In this detailed description, the preferred embodiments of the inventive penetration panel are described by means of examples only for clarifying the subject matter.

The inventive penetration panel will be used for rooms that require RF (Radio Frequency) suppression/sealing. There is much electromagnetic pollution in our environment. Cell phone signals, Radio/TV signals, RF signals in civil and military applications create this pollution. It is desired that a product which is designed and needs to be confirmed should not be affected by the signals coming from the external environment or not to miss the signal to the external environment. So closed environments/rooms that do not allow RF signals inside and/or do not leak the signals inside are used. It is desirable that there is no RF permeability between the external environment and the indoor environment, particularly in the testing and verification of RF units, or in anechoic chambers or faraday cages where specs of products such as antennas such as gain, pattern are measured. An anechoic chamber design is made by taking additional measures of RFI/EMI (Electromagnetic Interference) in the design of the room so as to provide this requirement.

In some applications, products such as cables, hoses, etc. must be taken into the room from the external environment. Signal pollution in the external environment creates current on this cable and hose and assists in carrying these signals inside or outside. This impairs the shielding effectiveness of the room. Penetration Panels are designed so as to prevent this. These panels are not flexible because they are designed according to the relevant cable or hose.

The inventive penetration panel comprises; a mechanical main body (1) that holds the system together and provides connection to the test environment, moving pin (10) which ensures that the gap is minimized by pressing on the cables (6) passed through the penetration panel by passing through the upper and lower parts of said main body (1) and is a screen between the test environment of the cables (6) and the external environment. The material of said main body (1) can be produced from conductive metals. In addition, the moving pin (10) may have different cross-sections such as honeycomb, circular and rectangular sections, according to test requirements. Crosssections can be changed according to the reflection feature of the broadcast. The moving pins (10) have a structure to minimize the gap by pressing the cables (6) placed in the penetration panel box from the upper and lower surfaces.

The inventive penetration panel comprises a pin spring (11 ) that provides the up or down movement of the movable pin (10), a pin body (12) which exerts pressure on the cable by moving up and down with the force taken from the movable pin spring (11) and does not leave any gaps. Furthermore, it comprises a transmission body (2) that pulls the moving pins (10) in the opposite upward direction so as to provide gap, transmits the driving motion to the pins, perforated guide body (3) that guides the moving pins (10) during the movement. In addition, it comprises a drive element (4) that provides the necessary drive to the moving pins (10) that move the transmission body (3), an RF absorbing EMI gasket (5) which is positioned to the end of the moving pins (10) so as to increase the contact surface and to minimize the gaps that will occur. Said drive element can be controlled pneumatically, electrically or hydraulically.

It is aimed to protect the shielding efficiency while products such as cables and hoses of different diameters are passing through the penetration panel with the novel solution proposed with the invention. The invention also increases shielding efficiency by grounding many products of different sizes through their screens at the same time. In this way, an easy and economical solution is offered without the need for different penetration panels.