Anti-interference shielding device of electrical testing machine

Abstract

The utility model provides an anti-interference shielding device of an electrical testing machine, which belongs to the technical field of electrical testing machines, and comprises an electrical testing machine main body and an installation frame, the electrical testing machine main body is arranged in the installation frame, the installation frame is provided with an anti-interference assembly, the anti-interference assembly comprises three groups of detachable shielding layers, and the periphery of the installation frame is provided with three groups of shielding layers. The shielding layer comprises two groups of copper foils and two groups of aluminum foils, the two groups of copper foils are vertically arranged on one side of the mounting frame, and the aluminum foils are arranged on the sides, away from the mounting frame, of the two groups of copper foils; the three groups of detachable shielding layers are composed of the copper foils and the aluminum foils, and the copper foils and the aluminum foils have good reflection and absorption effects on electromagnetic waves with different frequencies, so that the problem that the measurement result is deviated due to the fact that a traditional electric measuring machine is easily interfered by electromagnetic interference is solved, and the influence of external electromagnetic interference on normal work of the electric measuring machine is reduced; and the accuracy of measurement results is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical measuring machines, and more specifically, particularly relates to an anti-interference shielding device for an electrical measuring machine. Background Art

[0002] At present, with the rapid development of modern electronic technology, as a quality inspection device for electronic equipment, an electrical measuring machine can accurately measure and analyze various electrical parameters, provide data support for process control, product inspection, fault diagnosis, etc., and is beneficial to the control of product quality.

[0003] With the increasing complexity and integration of electronic equipment, the electromagnetic environment has become increasingly harsh. In the actual application of an electrical measuring machine, the electromagnetic fields around it may come from the operation of other electronic equipment, the transmission of power lines, or even wireless communication signals. These electromagnetic fields will induce noise voltage and current in the circuit of the electrical measuring machine, interfere with the normal signal transmission and processing, and thus cause deviations in the measurement results. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an anti-interference shielding device for an electrical measuring machine to solve the technical problems that in the prior art, a traditional electrical measuring machine is subject to electromagnetic interference from other electronic equipment, induces noise voltage and current in the circuit, interferes with the normal signal transmission and processing, and thus causes deviations in the measurement results.

[0005] The purpose and effect of the anti-interference shielding device for an electrical measuring machine of the utility model are achieved by the following specific technical means:

[0006] An anti-interference shielding device for an electrical measuring machine includes an electrical measuring machine main body and an installation frame. The electrical measuring machine main body is located inside the installation frame. An anti-interference component is arranged on the installation frame. The anti-interference component includes three groups of detachable shielding layers. Three groups of the shielding layers are arranged on the periphery of the installation frame. The shielding layer includes two groups of copper foils and two groups of aluminum foils. The two groups of copper foils are arranged vertically on one side of the installation frame, and the aluminum foils are arranged on one side of the two groups of copper foils away from the installation frame.

[0007] In a preferred embodiment, the shielding layer further includes a conductive rubber strip. The same group of conductive rubber strips is clamped between the two groups of copper foils and the two groups of aluminum foils.

[0008] In a preferred embodiment, two groups of installation chutes are opened on both sides of the installation frame. A plurality of installation sliders are correspondingly arranged on one side of two of the shielding layers. The plurality of installation sliders are respectively slidably connected to the four installation chutes.

[0009] In a preferred embodiment, a plurality of mounting seats are provided on the back surface of the mounting frame, and a plurality of clamping blocks are correspondingly provided on one side of another group of the shielding layers. The plurality of clamping blocks are respectively detachably clamped in the plurality of mounting seats.

[0010] In a preferred embodiment, two electromagnetic shielding gaskets are provided between the three groups of shielding layers.

[0011] In a preferred embodiment, an electromagnetic shield is provided inside the mounting frame, and the electromagnetic shield is electrically connected to the ground wire of the electrical measuring machine body.

[0012] In a preferred embodiment, two switchable door panels are provided on the front surface of the electrical measuring machine body. Both of the two door panels are made of a composite material of an insulating plate and a metal mesh, and a handle is provided on one side of each of the two door panels.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Through the arrangement of the three groups of shielding layers, when using the device, three detachable shielding layers composed of copper foil and aluminum foil are adopted, and conductive rubber strips are arranged between the layers. At the same time, electromagnetic shielding gaskets are also configured between the three groups of shielding layers. This multi-layer composite structure can comprehensively block the intrusion of external electromagnetic waves. The copper foil and aluminum foil have good reflection and absorption effects on electromagnetic waves of different frequencies. The conductive rubber strips further fill the possible tiny gaps, effectively reducing the leakage of electromagnetic waves; the electromagnetic shielding gaskets enhance the overall shielding efficiency, thereby minimizing the influence of external electromagnetic interference on the normal operation of the electrical measuring machine and ensuring the accuracy of the measurement results.

[0015] 2. Slidable mounting sliders and detachable clamping blocks are provided on the mounting frame, enabling the three groups of shielding layers to be flexibly installed and replaced, which is conducive to rapid assembly. When maintenance, cleaning is required for the shielding device or a certain component is damaged, the corresponding shielding layer can be quickly removed for treatment or replacement without complex disassembly of the entire device, greatly saving time and labor costs and improving the maintainability and service life of the equipment; moreover, the combination of the shielding layers can be adjusted according to the interference situation of the actual use scenario to meet the protection requirements under different working conditions, significantly improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an anti-interference shielding device of an electrical measuring machine of the utility model;

[0017] Figure 2 is an exploded view of an anti-interference shielding device of an electrical measuring machine of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the anti-interference component after assembly in the anti-interference shielding device of an electrical measuring machine of the present utility model;

[0019] Figure 4 For Figure 3 The schematic structural diagram after disassembly.

[0020] In the figure, the corresponding relationship between the component names and the attached drawing numbers is as follows:

[0021] 11. Electrical measuring machine main body; 12. Installation frame; 13. Installation chute; 14. Installation card seat; 15. Door panel; 16. Handle; 21. Copper foil; 22. Aluminum foil; 23. Conductive rubber strip; 24. Installation slider; 25. Block; 26. Electromagnetic shielding gasket; 27. Electromagnetic shield. Specific implementation mode

[0022] The following further describes in detail the implementation mode of the present utility model in conjunction with the attached drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] Embodiment:

[0024] As shown in the attached Figure 1 To the attached Figure 4 Shown:

[0025] The present utility model provides an anti-interference shielding device for an electrical measuring machine, including an electrical measuring machine main body 11 and an installation frame 12. The electrical measuring machine main body 11 is located inside the installation frame 12. Three groups of detachable shielding layers are provided on the periphery of the installation frame 12. Each group of shielding layers is composed of two groups of copper foils 21 arranged up and down and two groups of aluminum foils 22. Specifically, the two groups of copper foils 21 are respectively arranged on one side of the installation frame 12, and aluminum foils 22 are arranged on the sides of the two groups of copper foils 21 far away from the installation frame 12; this multi-layer composite structure of copper foil 21 and aluminum foil 22 can effectively isolate electromagnetic interference signals from all directions; copper foil 21 has excellent electrical conductivity and can absorb and disperse high-frequency electromagnetic waves; while aluminum foil 22 is good at blocking medium and low-frequency interference signals; ensuring that the electrical measuring machine main body 11 is protected from external interference and guaranteeing the accuracy of measurement data.

[0026] Please refer to as Figure 2 And Figure 4 Shown, the shielding layer further includes a conductive rubber strip 23. The same group of conductive rubber strips 23 are clamped between the two groups of copper foils 21 and the two groups of aluminum foils 22. The conductive rubber strip 23 can fill the gaps between the copper foil 21 and the aluminum foil 22, further enhancing the overall sealing performance; copper foil 21 and aluminum foil 22 have good reflection and absorption effects on electromagnetic waves of different frequencies, and on this basis, the conductive rubber strip 23 supplements the sealing protection and further reduces the risk of electromagnetic wave leakage.

[0027] Please refer to Figure 2 As shown, two sets of installation chutes 13 are provided on both sides of the installation frame 12, providing a convenient guiding structure for the installation of the shielding layer. Correspondingly, multiple installation sliders 24 are provided on one side of two sets of shielding layers, and these installation sliders 24 are respectively slidably connected to the four installation chutes 13. The shielding layer can be quickly and conveniently installed in place, and can be easily disassembled and maintained when needed. The cooperation of the installation chutes 13 and the installation sliders 24 not only simplifies the installation process of the shielding layer, but also ensures the stability and reliability of its installation. The sliding connection structure can effectively guide the shielding layer to be flat and aligned during installation, avoiding skewing or misalignment. At the same time, the limiting effect of the installation chutes 13 can also prevent the shielding layer from shifting during operation, ensuring that it is always in the best shielding state.

[0028] Please refer to Figure 3 With Figure 4 As shown, multiple installation holders 14 are provided on the back of the installation frame 12, and multiple blocks 25 are provided on one side of the other shielding layer correspondingly. These blocks 25 can be respectively detachably clamped in the multiple installation holders 14. By providing slidable installation sliders 24 and detachable blocks 25 on the installation frame 12, the three shielding layers can be flexibly installed and replaced, greatly improving the maintainability and adaptability of the device. When maintenance, cleaning is required for the shielding device or a certain component is damaged, the corresponding shielding layer can be quickly removed for processing or replacement without complex disassembly of the entire device, greatly saving time and labor costs. This detachable structure not only extends the service life of the device, but also ensures its efficient operation. At the same time, by adjusting the combination of the shielding layers, the shielding requirements under different working conditions can be met according to the interference conditions of the actual use occasion, greatly improving the adaptability of the device.

[0029] Please refer to Figure 2 With Figure 4 As shown, two electromagnetic shielding gaskets 26 are provided between the three shielding layers inside the installation frame 12. These shielding layers are composed of copper foil 21 and aluminum foil 22, and conductive rubber strips 23 are provided between the layers. At the same time, electromagnetic shielding gaskets 26 are also configured between the three shielding layers. This multi-layer composite structure can block the intrusion of external electromagnetic waves in all directions, and the electromagnetic shielding gaskets 26 enhance the overall shielding efficiency, thereby minimizing the impact of external electromagnetic interference on the normal operation of the main body 11 of the electrical measuring machine, and ensuring the accuracy of the measurement results.

[0030] Please refer to Figure 4As shown, in addition to the multi-layer composite shielding layer, an electromagnetic shield 27 is also provided on the inner side of the installation frame 12. The electromagnetic shield 27 is electrically connected to the ground wire of the main body 11 of the electrical measuring machine. The addition of the electromagnetic shield 27 further enhances the device's resistance to external electromagnetic interference. By connecting the electromagnetic shield 27 to the ground wire of the main body 11 of the electrical measuring machine, a complete grounding loop is formed, which can effectively absorb and conduct the electromagnetic waves from the outside, ensuring the stable operation of the main body 11 of the electrical measuring machine.

[0031] Please refer to as Figure 1 And Figure 2 As shown, at the same time, two groups of switchable door panels 15 are provided on the front of the main body 11 of the electrical measuring machine. These two groups of door panels 15 are made of a composite material of insulating plates and metal meshes, which can not only provide good electromagnetic shielding effect for the main body 11 of the electrical measuring machine, but also ensure a certain strength and insulation performance. A handle 16 is provided on one side of each group of door panels 15, which facilitates the user to quickly open and close these door panels 15, enabling the user to quickly enter and exit the main body 11 of the electrical measuring machine as needed, and quickly isolate the main body 11 of the electrical measuring machine from the external environment when necessary to avoid the intrusion of external electromagnetic interference.

[0032] The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. An anti-interference shielding device for an electrical measuring machine, comprising an electrical measuring machine main body (11) and a mounting frame (12), characterized in that: The main body (11) of the electrical measuring machine is located within the installation frame (12). An anti-interference component is provided on the installation frame (12). The anti-interference component includes three sets of detachable shielding layers. Three sets of the shielding layers are provided on the periphery of the installation frame (12). The shielding layer includes two sets of copper foils (21) and two sets of aluminum foils (22). The two sets of copper foils (21) are arranged vertically on one side of the installation frame (12). The aluminum foils (22) are provided on the sides of the two sets of copper foils (21) away from the installation frame (12).

2. The anti-interference shielding device of an electrical measuring machine according to claim 1, characterized in that: The shielding layer further includes a conductive rubber strip (23). The same set of conductive rubber strip (23) is clamped between the two sets of copper foils (21) and the two sets of aluminum foils (22).

3. The anti-interference shielding device of an electrical measuring machine according to claim 2, characterized in that: Two sets of installation chutes (13) are provided on both sides of the installation frame (12). A plurality of installation sliders (24) are correspondingly provided on one side of two of the shielding layers. The plurality of installation sliders (24) are respectively slidably connected to the four sets of installation chutes (13).

4. The anti-interference shielding device of an electrical measuring machine according to claim 2, wherein: A plurality of installation holders (14) are provided on the back surface of the installation frame (12). A plurality of blocks (25) are correspondingly provided on one side of the other shielding layer. The plurality of blocks (25) are respectively detachably clamped within the plurality of installation holders (14).

5. The anti-interference shielding device of an electrical measuring machine according to claim 2, characterized in that: Two electromagnetic shielding gaskets (26) are provided between the three sets of shielding layers.

6. The anti-interference shielding device of an electrical measuring machine according to claim 1, characterized in that: An electromagnetic shield (27) is provided inside the installation frame (12). The electromagnetic shield (27) is electrically connected to the ground wire of the main body (11) of the electrical measuring machine.

7. The anti-interference shielding device of an electrical measuring machine according to claim 1, characterized in that: Two switchable door panels (15) are provided on the front surface of the main body (11) of the electrical measuring machine. The two door panels (15) are both made of a composite material of an insulating plate and a metal mesh. Handles (16) are provided on one side of the two door panels (15).

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