Electromagnetic signal shielding terminal equipment

Abstract

The utility model discloses an electromagnetic signal shielding terminal device which comprises a terminal body, the terminal body comprises an upper shell, an outer frame, a lower shell, a circuit board and an antenna, the circuit board is arranged between the upper shell and the lower shell and located on the inner side of the outer frame, the antenna is arranged at the rear end of the outer frame, and a shielding layer is arranged on the inner side of the upper shell and located on the inner side of the lower shell. The shielding layer comprises a first-stage shielding plate, a second-stage shielding net and third-stage shielding cloth, the heat dissipation piece is arranged between the circuit board and the lower shell, and the heat dissipation piece comprises a heat conduction plate and a heat dissipation fan. According to the utility model, a multi-layer shielding structure is adopted and comprises the first-stage shielding plate, the second-stage shielding net and the third-stage shielding cloth, and even if one layer of material breaks down, other layers can still provide a shielding effect, so that the reliability of overall shielding is improved; heat is effectively conducted to the outside from the circuit board.

Description

TECHNICAL FIELD

[0001] The utility model relates to but are not limited to electromagnetic signal shielding terminal technical field, in particular to a kind of electromagnetic signal shielding terminal equipment. BACKGROUND

[0002] With the development of science and technology, electronic devices play an increasingly important role in people's life and work. However, the problem of electromagnetic signal interference is becoming increasingly serious, not only affecting the normal use of equipment, but also possibly leading to information leakage.

[0003] Traditional electromagnetic shielding measures mainly include the use of metal shielding cover, conductive paint, metal mesh and other materials. These measures can shield to some extent, but have the following limitations:

[0004] a. Shielding effect is limited by the conductivity and integrity of shielding materials. Once the materials are damaged or poorly connected, the shielding effect will be greatly reduced;

[0005] b. Traditional shielding measures often have a negative impact on the heat dissipation performance of the equipment, as the shielding materials hinder the transfer of heat.

[0006] Therefore, a kind of electromagnetic signal shielding terminal equipment with good heat dissipation effect of multi-layer shielding material is designed. CONTENT OF UTILITY MODEL

[0007] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an electromagnetic signal shielding terminal equipment.

[0008] To solve the above technical problems, the utility model provides the following technical scheme:

[0009] The utility model relates to a kind of electromagnetic signal shielding terminal equipment, including terminal body, the terminal body includes upper shell, outer frame, lower shell, circuit board and antenna, the circuit board is set between the upper shell and the lower shell, and located the inner side of the outer frame, the antenna is set in the rear end of the outer frame;

[0010] Shielding layer, the shielding layer is set in the inner side of the upper shell, the shielding layer includes primary shield plate, secondary shield net and tertiary shield cloth, the primary shield plate is set in the inner side of the upper shell, the secondary shield net is set between the primary shield plate and the tertiary shield cloth, the tertiary shield cloth is arranged above the circuit board;

[0011] Heat dissipation piece, the heat dissipation piece is set between the circuit board and the lower shell, the heat dissipation piece includes heat conduction plate and heat dissipation fan, the heat conduction plate is below the circuit board, the heat dissipation fan is screw connected below the heat conduction plate, and located the inner side of the lower shell.

[0012] As a preferred technical scheme of the utility model, still include connecting piece, connecting piece set up between the heat conduction plate with the lower casing, connecting piece includes connecting column and clamping column, the surface of heat conduction plate is equipped with the connecting hole of screw thread cooperation with connecting column, the inboard of lower casing is fixed with the fixed column of adaptation with clamping column, clamping column sets up in the inside of fixed column.

[0013] As a preferred technical scheme of the utility model, the lower end of connecting column is fixed with convex part, the upper end of clamping column is fixed with a plurality of clamping plates, a plurality of clamping plates are provided with expansion joint between, the outside of clamping plate is fixed with guide block, the inner wall of fixed column is equipped with the guide hole of adaptation with guide block.

[0014] As a preferred technical scheme of the utility model, the bottom of connecting column is screwed with fixed column, convex part is inserted with connecting column, clamping plate is of elastic material, guide block is movably connected with guide hole.

[0015] As a preferred technical scheme of the utility model, the third shielding cloth is of conductive cloth material, the second shielding net is of metal net material, the first shielding plate is of metal plate material, the third shielding cloth and the second shielding net are bonded by conductive adhesive tape, and the first shielding plate and the second shielding net are welded.

[0016] As a preferred technical scheme of the utility model, the heat conduction plate is of high thermal conductivity material, the inside of lower casing is provided with a plurality of heat dissipation grooves, and the inside of heat dissipation groove is embedded with dust screen.

[0017] As a preferred technical scheme of the utility model, the upper shell, the outer frame and the lower shell are screwed, and the circuit board is screwed with the outer frame.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] (1) The utility model adopts multilayer shielding structure, including first shielding plate, second shielding net and third shielding cloth, even if one layer of material fails, other layers can still provide shielding effect, thereby improving the reliability of overall shielding, and the selection and combination of shielding materials can provide more comprehensive protection against electromagnetic interference of different frequencies.

[0020] (2) The utility model discloses a heat dissipation piece arranged between the circuit board and the lower casing, which effectively conducts heat from the circuit board to the outside, maintains the stability of the internal temperature of the equipment, and the design of the heat dissipation groove and the dust screen ensures the heat dissipation efficiency and prevents dust from entering the inside of the equipment.

[0021] Solve the traditional electromagnetic signal shielding terminal equipment shielding once the material damage or poor connection, shielding effect will be greatly discounted, the negative impact on the heat dissipation performance of the equipment, because the shielding material will hinder the heat transfer problem.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0023] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed by the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic diagram of the disassembly structure of the present application;

[0027] Figure 3 is a schematic diagram of the disassembly structure of the shielding layer of the present application;

[0028] Figure 4 is a schematic diagram of the overall structure of the heat dissipation structure of the present application;

[0029] Figure 5 is a schematic diagram of the A part structure of the heat dissipation structure of the present application;

[0030] In the drawings: 10, terminal body; 11, upper shell; 12, outer frame; 13, lower shell; 131, heat dissipation groove; 132, dust screen; 133, fixed column; 14, antenna; 15, circuit board;

[0031] 20, shielding layer; 21, first shielding plate; 22, second shielding net; 23, third shielding cloth;

[0032] 30, connecting piece; 31, connecting column; 32, protruding part; 33, clamping column; 34, clamping plate; 35, guide block; 36, expansion joint;

[0033] 40, heat dissipation piece; 41, heat conduction plate; 42, heat dissipation fan; 43, connecting hole. DETAILED DESCRIPTION

[0034] As Figures 1-5 shown, the utility model provides a kind of electromagnetic signal shielding terminal equipment, including terminal body 10, terminal body 10 includes upper shell 11, outer frame 12, lower shell 13, circuit board 15 and antenna 14, circuit board 15 is arranged between upper shell 11 and lower shell 13, and located the inside of outer frame 12, antenna 14 is arranged at the rear end of outer frame 12;

[0035] Shielding layer 20, shielding layer 20 is arranged at the inside of upper shell 11, shielding layer 20 includes primary shielding plate 21, secondary shielding net 22 and tertiary shielding cloth 23, primary shielding plate 21 is arranged at the inside of upper shell 11, secondary shielding net 22 is arranged between primary shielding plate 21 and tertiary shielding cloth 23, and tertiary shielding cloth 23 is arranged above circuit board 15;

[0036] Heat dissipation piece 40, heat dissipation piece 40 is arranged between circuit board 15 and lower shell 13, heat dissipation piece 40 includes heat conduction plate 41 and heat dissipation fan 42, heat conduction plate 41 is below circuit board 15, and heat dissipation fan 42 is screw connected below heat conduction plate 41 and located the inside of lower shell 13.

[0037] Further, the embodiment also includes connecting piece 30, connecting piece 30 is arranged between heat conduction plate 41 and lower shell 13, connecting piece 30 includes connecting column 31 and clamping column 33, the surface of heat conduction plate 41 is provided with connecting hole 43 that is threadedly matched with connecting column 31, and the inside of lower shell 13 is fixed with fixed column 133 that is adapted with clamping column 33, and clamping column 33 is arranged in the inside of fixed column 133.

[0038] In the embodiment, the lower end of connecting column 31 is fixed with protruding part 32, the upper end of clamping column 33 is fixed with a plurality of clamping plates 34, expansion joint 36 is arranged between a plurality of clamping plates 34, the outside of clamping plate 34 is fixed with guide block 35, the inner wall of fixed column 133 is provided with guide hole that is adapted with guide block 35, and clamping plate 34 can be zoomed in and out movement by expansion joint 36.

[0039] In this embodiment, the bottom of the connecting column 31 is screwed with the fixed column 133, the protruding part 32 is inserted with the connecting column 31, the clamping plate 34 is made of elastic material, the guide block 35 is movably connected with the guide hole, the elastic clamping plate 34 is opened by inserting the protruding part 32 into the connecting column 31, and the clamping plate 34 is moved in the guide hole on the inner side of the fixed column 133 through the guide block 35, so that the clamping plate 34 is prevented from being deformed too much.

[0040] In this embodiment, the third shielding cloth 23 is made of conductive cloth material and is attached to the upper surface of the circuit board 15, the second shielding net 22 is made of metal net material and provides additional shielding effect and allows air circulation, which is helpful for heat dissipation, and the first shielding plate 21 is made of metal plate material and serves as the outermost protection to provide the strongest shielding effect. The third shielding cloth 23 and the second shielding net 22 are bonded by conductive adhesive tape, which has good conductivity and adhesion to ensure electrical connection between the two. The first shielding plate 21 and the second shielding net 22 are welded, and conductive gaskets can be used between each two layers of material to ensure continuous electrical contact. The gaskets can fill the gaps and provide good conductivity.

[0041] In this embodiment, the heat-conducting plate 41 is made of a material with high thermal conductivity, such as aluminum or copper, and the lower shell 13 has several heat dissipation grooves 131 inside, and the inner side of the heat dissipation grooves 131 is embedded with a dust screen 132. The dust screen 132 prevents dust from entering, and the heat dissipation fan 42 can exhaust the hot air.

[0042] In this embodiment, the upper shell 11, the outer frame 12, and the lower shell 13 are connected by screws, and the circuit board 15 is connected to the outer frame 12 by screws, which facilitates the disassembly and assembly of the terminal body 10.

[0043] Specifically, the terminal body 10 is assembled by the upper shell 11, the outer frame 12, the lower shell 13, the circuit board 15, and the antenna 14. The shielding layer 20 with a multi-layer structure is arranged between the upper shell 11 and the circuit board 15, including the first shielding plate 21, the second shielding net 22, and the third shielding cloth 23. The shielding layer 20 is formed into a closed Faraday cage by conductive material, which prevents external electromagnetic waves from entering the device and prevents internal electromagnetic signals from leaking to the outside, thereby improving the reliability of the shielding. Even if one of the shielding materials fails, the other two layers can still provide the necessary shielding effect.

[0044] Considering the heat dissipation effect of the terminal body 10, the heat dissipation part 40 is arranged between the circuit board 15 and the lower shell 13. The heat-conducting plate 41 made of a material with high thermal conductivity absorbs heat, and the heat dissipation fan 42 exhausts the heat absorbed by the heat-conducting plate 41 through the heat dissipation grooves 131 below to dissipate heat.

[0045] The connecting piece 30 is arranged between the heat dissipation piece 40 and the lower shell 13, and is arranged between the heat conduction plate 41 and the lower shell 13, the connecting column 31 is connected with the heat conduction plate 41 through the connecting hole 43 and is inserted into the clamping column 33 in the fixed column 133 of the lower shell 13, the connecting column 31 is inserted into the connecting column 31 through the protruding part 32, the clamping plate 34 made of elastic material is stretched, the expansion of the clamping plate 34 is limited through the fixed column 133, the connecting column 31 is clamped based on the force of the elastic clamping plate 34, and meanwhile the clamping plate 34 moves in the guide hole in the inner side of the fixed column 133 through the guide block 35, movement guidance is carried out, and excessive elastic deformation of the clamping plate 34 is avoided, when disassembly is needed, the connecting column 31 is directly rotated and pulled out, so that the connecting column 31 is separated from the clamping column 33 and the heat conduction plate 41, and the heat dissipation piece 40 is conveniently maintained or replaced with a heat dissipation piece 40 of different size and power.

[0046] It is worth noting that the control mode of the application file is automatically controlled through the switch, the control circuit of the switch can be realized through simple design of the person skilled in the art, and the control mode and circuit connection belong to the common knowledge in the art, and the control mode and circuit connection will not be explained in detail, and the application adopts an external power supply for power supply, and the power supply includes the equipment body and the heat dissipation fan 42.

[0047] The upper shell 11, the outer frame 12, the lower shell 13, the dust screen 132, the fixed column 133, the antenna 14, the circuit board 15, the first shielding plate 21, the second shielding net 22, the third shielding cloth 23, the connecting column 31, the clamping column 33, the clamping plate 34, the guide block 35, the heat dissipation piece 40, the heat conduction plate 41, the heat dissipation fan 42 and the like of the utility model are all general standard parts or parts known by the person skilled in the art, and the structure and principle thereof can be known by the person skilled in the art through a technical manual or through a conventional experimental method.

[0048] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0049] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of the indicated technical features, so the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0050] In the utility model, unless another explicit provision and limitation, the terms "installation", "arrangement", "connection", "fix", "screw joint" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction relationship of two elements of two elements inside, unless another explicit limitation, for the ordinary skilled person in the art, can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An electromagnetic signal shielding terminal device, characterized by, The terminal body (10) comprises an upper shell (11), an outer frame (12), a lower shell (13), a circuit board (15) and an antenna (14), the circuit board (15) is arranged between the upper shell (11) and the lower shell (13) and is located on the inner side of the outer frame (12), and the antenna (14) is arranged at the rear end of the outer frame (12); A shielding layer (20) is arranged on the inner side of the upper shell (11), the shielding layer (20) comprises a first shielding plate (21), a second shielding net (22) and a third shielding cloth (23), the first shielding plate (21) is arranged on the inner side of the upper shell (11), the second shielding net (22) is arranged between the first shielding plate (21) and the third shielding cloth (23), and the third shielding cloth (23) is arranged above the circuit board (15); A heat dissipation piece (40) is arranged between the circuit board (15) and the lower shell (13), the heat dissipation piece (40) comprises a heat conduction plate (41) and a heat dissipation fan (42), the heat conduction plate (41) is located below the circuit board (15), and the heat dissipation fan (42) is screw-connected below the heat conduction plate (41) and located on the inner side of the lower shell (13).

2. An electromagnetic signal shielding terminal device according to claim 1, characterized in that A connecting piece (30) is arranged between the heat conduction plate (41) and the lower shell (13), the connecting piece (30) comprises a connecting column (31) and a clamping column (33), a connecting hole (43) threadedly matched with the connecting column (31) is formed in the surface of the heat conduction plate (41), a fixed column (133) matched with the clamping column (33) is fixed on the inner side of the lower shell (13), and the clamping column (33) is arranged in the fixed column (133).

3. An electromagnetic signal shielding terminal device according to claim 2, characterized in that A protruding portion (32) is fixed to the lower end of the connecting column (31), a plurality of clamping plates (34) are fixed to the upper end of the clamping column (33), a expansion joint (36) is arranged between the clamping plates (34), a guide block (35) is fixed to the outer side of the clamping plate (34), and a guide hole matched with the guide block (35) is formed in the inner wall of the fixed column (133).

4. An electromagnetic signal shielding terminal device according to claim 3, characterized in that The bottom of the connecting column (31) is threadedly matched with the fixed column (133), the protruding portion (32) is inserted into the connecting column (31), the clamping plate (34) is made of elastic material, and the guide block (35) is movably connected with the guide hole.

5. An electromagnetic signal shielding terminal device according to claim 4, characterized in that The third shielding cloth (23) is made of conductive cloth material, the second shielding net (22) is made of metal mesh material, the first shielding plate (21) is made of metal plate material, the third shielding cloth (23) and the second shielding net (22) are bonded by conductive adhesive tape, and the first shielding plate (21) and the second shielding net (22) are welded.

6. An electromagnetic signal shielding terminal device according to claim 5, characterized in that The heat-conducting plate (41) is made of high-thermal-conductivity material, and the lower shell (13) is internally provided with a plurality of heat dissipation grooves (131), and the inner side of the heat dissipation grooves (131) is embedded with a dust screen (132).

7. An electromagnetic signal shielding terminal device according to claim 6, characterized in that The upper shell (11), the outer frame (12) and the lower shell (13) are screw-connected, and the circuit board (15) is screw-connected with the outer frame (12).

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