Electromagnetic shielding material based on polyimide film

Abstract

The utility model discloses an electromagnetic shielding material based on a polyimide film, comprising a shielding film; the reinforcing part comprises an upper reinforcing plate, a lower reinforcing plate, a protective film, a bolt plate, a supporting block and a bolt groove, the upper reinforcing plate is connected to the upper portions of the two sides of the outer surface of the shielding film, the lower reinforcing plate is connected to the lower portions of the two sides of the outer surface of the shielding film, and the protective film is connected between the upper reinforcing plate and the lower reinforcing plate; when an existing electromagnetic shielding material is actually used, the outside of the electromagnetic shielding material is provided with any protection structure, and in the using process, for example, after the electromagnetic shielding material is in contact with the electromagnetic shielding material in the external environment, the surface of the electromagnetic shielding material is slightly abraded, so that the electromagnetic shielding material cannot be damaged, and the service life of the electromagnetic shielding material is prolonged. The electromagnetic shielding material based on the polyimide film is even deformed under serious conditions, and the protective property is poor, so that the electromagnetic shielding material based on the polyimide film needs to be provided, a protective structure is added, and the protective effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide film materials, in particular to an electromagnetic shielding material based on polyimide film. Background Art

[0002] Polyimide, abbreviated as PI, is a high molecular polymer containing cyclic imide groups in its molecular chain. It has excellent high and low temperature resistance, high strength and high modulus, high creep resistance, high dimensional stability, low thermal expansion coefficient, high electrical insulation, low dielectric constant and loss, radiation resistance, corrosion resistance and other advantages. It has broad application prospects and huge commercial value in high-tech fields such as aerospace, space, microelectronics, precision machinery, and medical equipment. In the 1950s, with the increasing demand for high-performance materials, polyimide began to develop as a polymer material. Polyimide film is one of the earliest commercial products of polyimide. It is yellow and transparent, with a relative density between 1.39 and 1.45. It has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation properties. It can be used for a long time in the air at 250-280℃. The glass transition temperature varies according to different brands and models. The tensile strength of polyimide film is 200MPa at 20℃ and greater than 100MPa at 200℃. It is very suitable for use as a flexible printed circuit board substrate and various high-temperature resistant motor and electrical insulation materials. Electromagnetic shielding material is a functional material that can attenuate the propagation of electromagnetic wave energy by absorption, reflection, etc., so as to effectively suppress electromagnetic interference and pollution.

[0003] When existing electromagnetic shielding materials are actually used, the outside of the electromagnetic shielding material has no protective structure. During use, if it comes into contact with the external environment, the surface of the electromagnetic shielding material will produce slight wear and tear, and in severe cases even deformation, resulting in poor protection. Therefore, it is necessary to provide an electromagnetic shielding material based on polyimide film to increase the protective structure and improve the protection effect. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides an electromagnetic shielding material based on polyimide film. The protective effect of the shielding film is improved by adding an upper reinforcing plate, a lower reinforcing plate and a protective film to the outside of the shielding film to prevent wear and deformation caused by external contact. Damping rings are provided on both sides of the upper reinforcing plate, and damping frames are provided on both sides of the lower reinforcing plate. When in use, the shielding film can be conveniently pulled out and fixed by cooperating with the damping ring and the damping frame. This design not only enhances the durability of the shielding film, but also improves the convenience during use.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electromagnetic shielding material based on polyimide film, comprising:

[0008] Shielding film;

[0009] A reinforcing component includes an upper reinforcing plate, a lower reinforcing plate, a protective film, a latch plate, a support block and a latch slot. The upper parts of both sides of the outer surface of the shielding membrane are connected with the upper reinforcing plates, the lower parts of both sides of the outer surface of the shielding membrane are connected with the lower reinforcing plates, and a protective film is connected between the upper reinforcing plate and the lower reinforcing plate. The protective film surrounds the upper and lower parts of the outer surface of the shielding membrane.

[0010] Preferably, a group of latch plates are symmetrically connected to both sides of the outer surface of the upper reinforcing plate, and a support block is symmetrically connected to both sides of the outer surface of the lower reinforcing plate. A latch groove is opened inside the support block, and the latch plate is connected to the inside of the latch groove by insertion.

[0011] Preferably, the upper reinforcing plate and the lower reinforcing plate correspond to each other, and the latch plate and the latch slot correspond to each other.

[0012] Preferably, the upper reinforcing plate and the lower reinforcing plate respectively surround the upper and lower parts of both sides of the outer surface of the shielding membrane.

[0013] Preferably, it also includes a positioning component, which includes a fixed slot, a fixed plug, a damping frame, a limit block and a damping ring. The damping rings are symmetrically connected to the two sides of the outer surface of the upper reinforcing plate, and the damping frames are symmetrically connected to the two sides of the outer surface of the lower reinforcing plate. The damping rings are movably connected to the outer surface of the damping frame.

[0014] Preferably, a fixed plug is connected to the middle of the bottom end of the upper reinforcing plate, a fixed slot is opened in the middle of the top end of the lower reinforcing plate, and the fixed plug is connected to the inside of the fixed slot by insertion.

[0015] (3) Beneficial effects

[0016] The utility model provides an electromagnetic shielding material based on polyimide film, which has the following beneficial effects:

[0017] (1) This electromagnetic shielding material based on polyimide film is provided with an upper reinforcing plate, a lower reinforcing plate and a protective film on the outside of the shielding film, and the upper reinforcing plate and the lower reinforcing plate are respectively installed on the upper and lower parts of the upper side of the outer surface of the shielding film. The latch plate is inserted into the inside of the latch slot to reinforce the upper and lower reinforcing plates, and the protective film will simultaneously surround the upper and lower parts of the outer surface of the shielding film. The device in the external environment will directly contact the upper reinforcing plate, the lower reinforcing plate and the protective film, avoiding direct contact between the device and the shielding film. The surface of the electromagnetic shielding material will produce slight wear and tear, and even deformation in severe cases, thereby improving the protection effect;

[0018] (2), the electromagnetic shielding material based on polyimide film, the damping ring is arranged on both sides of the upper reinforcing plate, the damping bracket is arranged on both sides of the lower reinforcing plate, when the shielding film needs to be used, the upper reinforcing plate on both sides is lifted up by the damping ring moving up and down outside the damping rod, the shielding film is exposed, the shielding film can be taken out for use, after use, the damping ring is moved outside the damping bracket, the fixed plug is inserted into the fixed slot, the upper reinforcing plate and the lower reinforcing plate are abutted and fixed, and the use is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model;

[0020] Figure 2 It is the overall structure schematic view of the upper reinforcing plate and the lower reinforcing plate of the utility model;

[0021] Figure 3 It is the structure schematic view after the upper reinforcing plate of the utility model is split;

[0022] Figure 4 It is the structure schematic view after the lower reinforcing plate of the utility model is split;

[0023] Marking in the drawing: 1, shielding film; 2, upper reinforcing plate; 3, lower reinforcing plate; 4, protective film; 5, bolt plate; 6, supporting block; 7, bolt slot; 8, fixed slot; 9, fixed plug; 10, damping bracket; 11, limiting block; 12, damping ring. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0025] Please refer to Figure 1-4 The utility model embodiment provides a kind of technical scheme: an electromagnetic shielding material based on polyimide film, including,

[0026] Shielding film 1;

[0027] A reinforcing component, comprising an upper reinforcing plate 2, a lower reinforcing plate 3, a protective film 4, a latch plate 5, a support block 6, and a latch slot 7. The upper portions of both sides of the outer surface of the shielding membrane 1 are connected to the upper reinforcing plates 2, the lower portions of both sides of the outer surface of the shielding membrane 1 are connected to the lower reinforcing plates 3, and the protective film 4 is connected between the upper reinforcing plate 2 and the lower reinforcing plate 3. The protective film 4 surrounds the upper and lower portions of the outer surface of the shielding membrane 1;

[0028] The upper reinforcing plate 2 and the lower reinforcing plate 3 are respectively installed on the upper and lower parts of the upper side of the outer surface of the shielding membrane 1, and the pin plate 5 is inserted into the inside of the pin groove 7 to reinforce the upper and lower reinforcing plates 2 and 3, and the protective film 4 will simultaneously surround the upper and lower parts of the outer surface of the shielding membrane 1. The device in the external environment will directly contact the upper reinforcing plate 2, the lower reinforcing plate 3 and the protective film 4, thereby improving the protection effect.

[0029] A group of latch plates 5 are symmetrically connected to both sides of the outer surface of the upper reinforcing plate 2, and support blocks 6 are symmetrically connected to both sides of the outer surface of the lower reinforcing plate 3. A latch groove 7 is provided inside the support block 6, and the latch plate 5 is connected to the inside of the latch groove 7 by insertion. When the upper reinforcing plate 2 and the lower reinforcing plate 3 are reinforced on the upper and lower parts of both sides of the outer surface of the shielding membrane 1, the latch plates 5 are simultaneously inserted into the inside of the latch groove 7 to reinforce the upper reinforcing plate 2 and the lower reinforcing plate 3.

[0030] The upper reinforcing plate 2 and the lower reinforcing plate 3 correspond to each other, and the latch plate 5 and the latch slot 7 correspond to each other.

[0031] The upper reinforcing plate 2 and the lower reinforcing plate 3 respectively surround the upper and lower parts of both sides of the outer surface of the shielding membrane 1, and the upper reinforcing plate 2 and the lower reinforcing plate 3 are used to enhance the protection effect of the shielding membrane 1.

[0032] It also includes a positioning component, which includes a fixed slot 8, a fixed insert 9, a damping frame 10, a limit block 11 and a damping ring 12. The damping rings 12 are symmetrically connected to the two sides of the outer surface of the upper reinforcing plate 2, and the damping frames 10 are symmetrically connected to the two sides of the outer surface of the lower reinforcing plate 3. The damping ring 12 is movably connected to the outer surface of the damping frame 10. When the shielding membrane 1 needs to be used, the damping ring 12 is moved up and down on the outside of the damping rod, and the upper reinforcing plates 2 on both sides are lifted upward, the shielding membrane 1 will be exposed, and the shielding membrane 1 can be pulled out for use, which can avoid position deviation when it is protected again later.

[0033] A fixed plug-in block 9 is connected to the middle of the bottom end of the upper reinforcing plate 2, and a fixed slot 8 is opened in the middle of the top end of the lower reinforcing plate 3. The fixed plug-in block 9 is connected to the inside of the fixed slot 8 by insertion. When the upper reinforcing plate 2 and the lower reinforcing plate 3 correspond to each other, the fixed plug-in block 9 is simultaneously inserted into the inside of the fixed slot 8 for fixation.

[0034] The working principle of the electromagnetic shielding material based on polyimide film is as follows: first, the upper reinforcing plate 2 and the lower reinforcing plate 3 are respectively installed on the upper and lower parts of the upper side of the outer surface of the shielding film 1, and the latch plate 5 is inserted into the latch groove 7 to reinforce the upper and lower reinforcing plates 2 and the lower reinforcing plates 3, and the protective film 4 will simultaneously surround the upper and lower parts of the outer surface of the shielding film 1. The device in the external environment will directly contact the upper reinforcing plate 2, the lower reinforcing plate 3 and the protective film 4, avoiding direct contact between the device and the shielding film 1. The surface of the electromagnetic shielding material will produce slight wear and even deformation in severe cases, thereby improving the protection effect. When the shielding film 1 needs to be used, the damping ring 12 is moved up and down on the outside of the damping rod, and the upper reinforcing plates 2 on both sides are lifted upward, the shielding film 1 will be exposed, and the shielding film 1 can be pulled out for use. After use, the damping ring 12 is moved again on the outside of the damping frame 10, and the fixed plug 9 is inserted into the fixed slot 8, so that the upper reinforcing plate 2 is fixed on the top of the lower reinforcing plate 3, which can avoid position deviation when it is protected again in the future.

[0035] The present invention comprises: 1. shielding film; 2. upper reinforcing plate; 3. lower reinforcing plate; 4. protective film; 5. latch plate; 6. support block; 7. latch slot; 8. fixing slot; 9. fixing plug block; 10. damping frame; 11. limit block; 12. damping ring. All components are universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. The problem solved by the present invention is that when the existing electromagnetic shielding material is actually used, the outside of the electromagnetic shielding material has any protective structure. During use, if it comes into contact with the external environment, the surface of the electromagnetic shielding material will produce slight wear and tear, and in severe cases, it may even be deformed, and the protective performance is poor. Therefore, it is necessary to provide an electromagnetic shielding material based on polyimide film to increase the protective structure and improve the protective effect. The present invention combines the above components with each other, and respectively provides an upper reinforcing plate and a lower reinforcing plate on the outside of the shielding film. The shielding film is then pulled out for use. After use, the damping ring is moved outside the damping frame, and the fixed plug is inserted into the inside of the fixed slot to connect the upper and lower reinforcing plates and the lower reinforcing plates to the shielding film. It is very convenient to use.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electromagnetic shielding material based on a polyimide film, characterized in that: include, Shielding film (1); A reinforcing component, comprising an upper reinforcing plate (2), a lower reinforcing plate (3), a protective film (4), a latch plate (5), a support block (6) and a latch slot (7), wherein the upper portions of both sides of the outer surface of the shielding membrane (1) are connected to the upper reinforcing plate (2), the lower portions of both sides of the outer surface of the shielding membrane (1) are connected to the lower reinforcing plate (3), a protective film (4) is connected between the upper reinforcing plate (2) and the lower reinforcing plate (3), and the protective film (4) surrounds the upper and lower portions of the outer surface of the shielding membrane (1).

2. The electromagnetic shielding material based on polyimide film according to claim 1, characterized in that: A group of latch plates (5) are symmetrically connected to both sides of the outer surface of the upper reinforcing plate (2), and a support block (6) is symmetrically connected to both sides of the outer surface of the lower reinforcing plate (3). A latch groove (7) is provided inside the support block (6), and the latch plate (5) is connected to the inside of the latch groove (7) by insertion.

3. The electromagnetic shielding material based on polyimide film according to claim 1, characterized in that: The upper reinforcing plate (2) and the lower reinforcing plate (3) correspond to each other, and the latch plate (5) and the latch slot (7) correspond to each other.

4. The electromagnetic shielding material based on polyimide film according to claim 1, characterized in that: The upper reinforcing plate (2) and the lower reinforcing plate (3) respectively surround the upper and lower parts of both sides of the outer surface of the shielding membrane (1).

5. The electromagnetic shielding material based on polyimide film according to claim 1, characterized in that: The invention also includes a positioning component, which includes a fixed slot (8), a fixed insert (9), a damping frame (10), a limit block (11) and a damping ring (12). The damping ring (12) is symmetrically connected to the outer surface of the upper reinforcing plate (2), and the damping frame (10) is symmetrically connected to the outer surface of the lower reinforcing plate (3). The damping ring (12) is movably connected to the outer surface of the damping frame (10).

6. The electromagnetic shielding material based on polyimide film according to claim 5, characterized in that: A fixed plug-in block (9) is connected to the middle of the bottom end of the upper reinforcing plate (2), and a fixed slot (8) is provided in the middle of the top end of the lower reinforcing plate (3), and the fixed plug-in block (9) is connected to the inside of the fixed slot (8) by insertion.

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