Anti-interference voice switch shell structure

Abstract

The utility model relates to the switch field, and especially relates to an anti-interference voice switch housing structure comprising a shielding housing; and the bottom surface of the inner wall of the shielding shell is fixedly connected with two U-shaped blocks. When the socket provided with the plug mechanism and the side wall of the rotating column is not used, the rotating column is rotated to enable the socket to be hidden in the shielding shell, and the rubber blocks on the two sides are tightly attached to the rotating column, so that a sealed dustproof anti-electromagnetic interference structure can be formed, the shielding efficiency of high-frequency signals is improved, and the cooling fan blows air downwards; heat is discharged through a first ventilation space and a second ventilation space from the upper end of the inner shell, a first moving mechanism drives a second threaded sleeve block to move so that blocking of a first ventilation plate can be relieved, wind power is discharged downwards through a filter screen of the first ventilation plate, and the bottom heat dissipation path is increased; the second moving mechanism drives the first threaded sleeve block to move the heat conduction frame so that blocking of the second ventilation plate can be relieved, hot air is discharged downwards through a filter screen of the second ventilation plate, and vertical multi-direction ventilation is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of switches, and in particular relates to an anti-interference voice switch housing structure. Background Art

[0002] In the field of modern communications, voice switches are important communications equipment, and their stability and reliability are of vital importance. With the continuous development and popularization of electronic equipment, the electromagnetic environment is becoming increasingly complex. Voice switches are extremely susceptible to external electromagnetic interference during operation, which may lead to problems such as distortion of voice signal transmission, deterioration of call quality, and even communication interruption.

[0003] At present, traditional metal casings mostly adopt a single-layer structure, which has limited shielding effectiveness for high-frequency signals and is easily affected by external electromagnetic interference (such as base stations, Wi-Fi signals), resulting in voice signal distortion or crosstalk. In addition, the design of the heat dissipation holes is rough, which can ventilate but easily introduce dust and moisture. In addition, the integrated frame design requires the internal modules to be disassembled as a whole for inspection, which is inconvenient to maintain. Utility Model Content

[0004] In order to overcome the problems of insufficient anti-interference ability, poor heat dissipation design and inconvenient maintenance of the existing voice switch casing, an anti-interference voice switch casing structure is proposed.

[0005] The technical solution of the utility model is: an anti-interference voice switch housing structure, including a shielding housing; two U-shaped blocks are fixedly connected to the bottom surface of the inner wall of the shielding housing, a slider is slidably provided on the inner wall of the U-shaped block, the upper ends of the two sliders are fixedly connected to the inner housing, the upper end of the inner housing is fixedly connected to a slide plate, and the upper end of the slide plate is in contact with the top surface of the inner wall of the shielding housing;

[0006] The lower end of the inner shell is fixedly connected with a first ventilation plate and a second ventilation plate in a through-type manner, the upper ends of the first ventilation plate and the second ventilation plate are both through-opened with ventilation slots, and the inner walls of the ventilation slots are fixedly connected with filters;

[0007] A cooling fan is fixedly connected to one side of the inner wall of the inner shell, with the air outlet of the cooling fan facing downward, and a circuit board is fixedly connected to the middle of the inner wall of the inner shell;

[0008] The inner shell is provided with a first moving mechanism, a second threaded sleeve is installed on the first moving mechanism, the upper end of the second threaded sleeve is fitted with the lower end of the inner shell, and the lower end of the second threaded sleeve is fitted with the bottom surface of the inner wall of the shielding shell;

[0009] A second moving mechanism is provided on the bottom surface of the inner wall of the inner shell, and a heat-conducting frame is installed on the second moving mechanism. The upper end of the heat-conducting frame is in contact with the lower end of the circuit board, and the lower end of the heat-conducting frame is in contact with the upper end of the second ventilation plate;

[0010] A plug mechanism is provided at the upper end of the shielding shell;

[0011] One side of the shielding housing is open, a first ventilation space is formed between one side of the inner housing and the inner wall of the other side of the shielding housing, and a second ventilation space is formed between the U-shaped block and the second threaded sleeve block.

[0012] Furthermore, the first moving mechanism includes a connecting block, a second motor, and a second screw; a connecting block is fixedly connected to the lower part of one side of the inner housing, a second motor is fixedly connected to the inner wall of the connecting block, a second screw is fixedly connected to the output shaft of the second motor, and a second threaded sleeve block is threadedly installed on the side wall of the second screw.

[0013] Furthermore, the second moving mechanism includes a first motor, a first screw, and a first threaded sleeve block; a first motor is fixedly connected to the bottom surface of the inner wall of the inner housing, a first screw is fixedly connected to the output shaft of the first motor, a first threaded sleeve block is threadedly installed on the side wall of the first screw, and the side wall of the first threaded sleeve block is fixedly connected to the inner wall of the heat conduction frame.

[0014] Furthermore, the plug mechanism includes a first groove body, a rotating column, a rubber block, and a socket; a first groove body is penetrated and opened at the upper end of the shielding housing, rotating columns are rotatably installed at the left and right ends of the inner wall of the first groove body, rubber blocks are fixedly connected to both sides of the inner wall of the first groove body, the side wall of the rotating column and one ends of the two rubber blocks close to each other are in contact, and a plurality of sockets are opened on the side wall of the rotating column, and the sockets are electrically connected to the circuit board.

[0015] Furthermore, second groove bodies are uniformly distributed on the side wall of the rotating column.

[0016] Furthermore, a limiting block is fixedly connected to the side wall of the rotating column, and the upper end of the limiting block is in contact with the top surface of the inner wall of the shielding housing.

[0017] Furthermore, a plurality of sockets are provided on one side of the inner housing.

[0018] Furthermore, the filter screen is a metal shielding net.

[0019] The beneficial effects of the present utility model:

[0020] 1. The shielding housing forms a basic electromagnetic shielding space. The inner housing is slidably connected to the U-shaped block through a slider, which is convenient for disassembly and maintenance. The upper end of the sliding plate is in contact with the top surface of the inner wall of the shielding housing. Cooperating with the first ventilation space formed by the open side of the shielding housing and the other side of the inner housing, while ensuring ventilation, the electromagnetic leakage is reduced through the closed structure of the metal housing;

[0021] 2. In the plug mechanism, when the sockets on the side wall of the rotating column are not in use, the rotating column is rotated to hide the sockets inside the shielding housing, and the rubber blocks on both sides are closely attached to the rotating column to form a sealed dust-proof and electromagnetic interference-proof structure, avoiding the intrusion of external electromagnetic signals through the socket interface and improving the shielding efficiency of high-frequency signals;

[0022] 3. The cooling fan blows air downward, and the heat is discharged through the upper end of the inner shell via the first ventilation space and the second ventilation space. Additionally, the first moving mechanism drives the second threaded sleeve block to move, which can release the blockage of the first ventilation plate, allowing the wind to be discharged downward through the filter screen of the first ventilation plate, increasing the bottom heat dissipation path.

[0023] 4. The second moving mechanism drives the first threaded sleeve block to move, and the heat conduction frame can release the blockage of the second ventilation plate, and the hot air is discharged downward through the filter screen of the second ventilation plate, achieving multi-directional ventilation up and down.

[0024] 5. The upper end of the heat conduction frame always fits against the lower end of the circuit board. Through the reciprocating movement of the second moving mechanism, the heat of the circuit board is quickly conducted and discharged through the second ventilation space, avoiding local heat accumulation and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shows a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 Shows a sectional three-dimensional structural schematic diagram of the shielding shell of the present utility model;

[0027] Figure 3 Shows a three-dimensional structural schematic diagram of the rotating column of the present utility model;

[0028] Figure 4 Shows a three-dimensional structural schematic diagram of the limit block of the present utility model;

[0029] Figure 5 Shows a three-dimensional structural schematic diagram of the first moving mechanism of the present utility model;

[0030] Figure 6 Shows a three-dimensional structural schematic diagram of the second moving mechanism of the present utility model;

[0031] Figure 7 Shows a front view of the present utility model.

[0032] The reference signs in the drawings are: 1. Shielding shell; 2. U-shaped block; 3. Slide block; 4. Inner shell; 5. Slide plate; 6. Cooling fan; 7. Circuit board; 8. First ventilation plate; 9. Second ventilation plate; 10. First groove; 11. Rotating column; 12. Rubber block; 13. Second groove; 14. First motor; 15. First screw; 16. First threaded sleeve block; 17. Heat conduction frame; 18. Connecting block; 19. Second motor; 20. Second screw; 21. Second threaded sleeve block; 22. Socket; 23. Limit block; 24. First ventilation space; 25. Second ventilation space. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0034] Embodiment 1: Please refer to Figures 1 - 7 , the anti-interference voice switch housing structure, having a shielding housing 1; on the bottom surface of the inner wall of the shielding housing 1, two U-shaped blocks 2 are fixedly connected, a slider 3 is slidably arranged on the inner wall of the U-shaped block 2, the upper ends of the two sliders 3 are fixedly connected to an inner housing 4, the upper end of the inner housing 4 is fixedly connected with a sliding plate 5, and the upper end of the sliding plate 5 is in contact with the top surface of the inner wall of the shielding housing 1;

[0035] The lower end of the inner housing 4 is fixedly connected with a first ventilation plate 8 and a second ventilation plate 9 in a penetrating manner. Ventilation grooves are formed in the upper ends of the first ventilation plate 8 and the second ventilation plate 9, and filter nets are fixedly connected to the inner walls of the ventilation grooves;

[0036] On one side of the inner wall of the inner housing 4, a heat dissipation fan 6 is fixedly connected, the air outlet end of the heat dissipation fan 6 faces downward, and a circuit board 7 is fixedly connected to the middle of the inner wall of the inner housing 4;

[0037] A first moving mechanism is arranged on one side of the inner housing 4, a second threaded sleeve block 21 is installed on the first moving mechanism, the upper end of the second threaded sleeve block 21 is in contact with the lower end of the inner housing 4, and the lower end of the second threaded sleeve block 21 is in contact with the bottom surface of the inner wall of the shielding housing 1;

[0038] A second moving mechanism is arranged on the bottom surface of the inner wall of the inner housing 4, a heat conduction frame 17 is installed on the second moving mechanism, the upper end of the heat conduction frame 17 is in contact with the lower end of the circuit board 7, and the lower end of the heat conduction frame 17 is in contact with the upper end of the second ventilation plate 9;

[0039] A plug mechanism is arranged at the upper end of the shielding housing 1;

[0040] One side of the shielding housing 1 is an opening, a first ventilation space 24 is formed between one side of the inner housing 4 and the inner wall of the other side of the shielding housing 1, and a second ventilation space 25 is formed between the U-shaped block 2 and the second threaded sleeve block 21.

[0041] In use, the slider 3 can slide along the inner wall of the U-shaped block 2, and the inner shell 4 can be slidably placed on the inner wall of the shielding outer shell 1. This outer shell structure has four ventilation methods: First, when the cooling fan 6 is turned on to generate downward wind force, the heat on the circuit board 7 can be discharged through the upper end of the inner shell 4, and the hot air is discharged outward through the first ventilation space 24 and the second ventilation space 25; Second, when the cooling fan 6 is turned on to generate downward wind force, the first moving mechanism is turned on to move the second threaded sleeve block 21. After the second threaded sleeve block 21 moves, the blocking of the first ventilation plate 8 can be released, and at this time, the wind force can also be discharged downward through the filter screen on the first ventilation plate 8; Third, the second moving mechanism is turned on to drive the first threaded sleeve block 16 to drive the heat conduction frame 17 to move. After the heat conduction frame 17 moves, the blocking of the upper end of the second ventilation plate 9 can be released, so that the hot air can be discharged downward through the filter screen on the second ventilation plate 9; Fourth, the first moving mechanism is turned on to make the heat conduction frame 17 reciprocate. Since the upper end of the heat conduction frame 17 always fits against the lower end of the circuit board 7, the heat conduction frame 17 can conduct the heat on the circuit board 7, and the heat conduction frame 17 can also move, so as to accelerate heat dissipation. And since the hot air always flows out through the second ventilation space 25, the possibility of dust entering the inner shell 4 is reduced.

[0042] Please refer to Figure 1 and Figure 5 , in this embodiment, the first moving mechanism includes a connecting block 18, a second motor 19 and a second screw 20; a connecting block 18 is fixedly connected to the lower part of one side of the inner shell 4, a second motor 19 is fixedly connected to the inner wall of the connecting block 18, a second screw 20 is fixedly connected to the output shaft of the second motor 19, and a second threaded sleeve block 21 is threadedly installed on the side wall of the second screw 20. By driving the second screw 20 to rotate through the second motor 19, the linear movement of the second threaded sleeve block 21 can be accurately controlled, so as to realize the blocking or opening of the first ventilation plate 8, with a compact structure and stable transmission.

[0043] Please refer to Figure 1 and Figure 6 , in this embodiment, the second moving mechanism includes a first motor 14, a first screw 15 and a first threaded sleeve block 16; a first motor 14 is fixedly connected to the bottom surface of the inner wall of the inner shell 4, a first screw 15 is fixedly connected to the output shaft of the first motor 14, a first threaded sleeve block 16 is threadedly installed on the side wall of the first screw 15, and the side wall of the first threaded sleeve block 16 is fixedly connected to the inner wall of the heat conduction frame 17. The first motor 14 drives the first screw 15 to rotate, driving the first threaded sleeve block 16 and the heat conduction frame 17 to reciprocate, so that the heat conduction frame 17 dynamically conducts heat while fitting against the lower end of the circuit board 7, which not only enhances the heat conduction efficiency of the circuit board 7, but also can expand the heat dissipation coverage range through movement, avoiding local heat accumulation and improving the overall heat dissipation performance.

[0044] Please refer to Figure 1, in this embodiment, multiple sockets are provided on one side of the inner shell 4 to facilitate the connection of external plugs.

[0045] Please refer to Figure 2 , in this embodiment, the filter screen is a metal shielding net, which can improve the electromagnetic shielding performance.

[0046] Embodiment 2: Please refer to Figure 3 and Figure 4 , on the basis of Embodiment 1, the present application provides a technical solution: the plug mechanism includes a first groove body 10, a rotating column 11, a rubber block 12 and a socket 22; a first groove body 10 is penetrated and opened at the upper end of the shielding outer shell 1, the left and right ends of the inner wall of the first groove body 10 are rotatably installed with a rotating column 11, both sides of the inner wall of the first groove body 10 are fixedly connected with a rubber block 12, the side wall of the rotating column 11 and the mutually approaching ends of the two rubber blocks 12 are in contact, a plurality of sockets 22 are opened on the side wall of the rotating column 11, the sockets 22 are electrically connected to the circuit board 7, when the sockets 22 are not in use, by manually rotating the rotating column 11, the sockets 22 are located inside the shielding outer shell 1, which can improve the dust protection of the sockets 22.

[0047] Please refer to Figure 1 and Figure 3 , in this embodiment, uniformly distributed second groove bodies 13 are opened on the side wall of the rotating column 11, and the second groove bodies 13 increase the frictional damping of the side wall of the rotating column 11, facilitating manual rotation operation.

[0048] Please refer to Figure 1 and Figure 4 , in this embodiment, a limiting block 23 is fixedly connected to the side wall of the rotating column 11, the upper end of the limiting block 23 is in contact with the top surface of the inner wall of the shielding outer shell 1, the limiting block 23 is in contact with the top surface of the inner wall of the shielding outer shell 1, forming an axial limit for the rotating column 11, preventing it from having vertical displacement during the rotation process, ensuring the accurate position when the socket 22 is hidden or exposed, and at the same time enhancing the sealing performance between the rotating column 11 and the shielding outer shell 1, reducing the intrusion of dust and electromagnetic signals from the connection part.

[0049] Working principle: When the anti-interference voice switch housing works, the slider 3 can slide along the inner wall of the U-shaped block 2, so that the inner shell 4 is attached to the top surface of the inner wall of the shielding outer shell 1 through the sliding plate 5 and is slidably installed inside the shielding outer shell 1; the multiple sockets on one side of the inner shell 4 facilitate the connection of external plugs;

[0050] When heat dissipation is required, the cooling fan 6 is turned on, and its downward wind force can discharge the heat on the circuit board 7 through the upper end of the inner shell 4, and the hot air is discharged outwards through the first ventilation space 24 formed between one side of the inner shell 4 and the inner wall of the other side of the shielding outer shell 1 and the second ventilation space 25 between the U-shaped block 2 and the second threaded sleeve block 21;

[0051] If heat dissipation is required through the first ventilation plate 8, the second motor 19 drives the second screw 20 to rotate, driving the second threaded sleeve block 21 to move, releasing its blockage of the first ventilation plate 8, and the wind can be discharged downward through the filter screen on the inner wall of the ventilation slot at the upper end of the first ventilation plate 8;

[0052] If heat dissipation is required through the second ventilation plate 9, the first motor 14 drives the first screw 15 to rotate, driving the first threaded sleeve block 16 and the fixedly connected heat conduction frame 17 to move, releasing the blockage of the upper end of the second ventilation plate 9 by the heat conduction frame 17, and the hot air is discharged downward through the filter screen on the inner wall of the ventilation slot at the upper end of the second ventilation plate 9;

[0053] At the same time, since the upper end of the heat conduction frame 17 always fits against the lower end of the circuit board 7, its reciprocating movement can accelerate the conduction of the heat of the circuit board 7 and flow out through the second ventilation space 25;

[0054] For the plug mechanism, when the socket 22 is not in use, manually rotate the rotating column 11. The second grooves 13 uniformly distributed on its side wall increase the frictional damping for easy operation. Rotate until the socket 22 is located inside the shielding housing 1. At this time, the limiting block 23 fits against the inner wall top surface of the shielding housing 1, forming an axial limit for the rotating column 11 to ensure accurate positioning. Moreover, the side wall of the rotating column 11 fits against the rubber blocks 12 on both sides of the inner wall of the first groove 10, enhancing the sealing performance and achieving dust protection and electromagnetic shielding for the socket 22;

[0055] When using the socket 22, rotate the rotating column 11 in the reverse direction to expose the socket 22, and then the external circuit can be connected.

Claims

1. An anti-interference voice switch housing structure, comprising a shielded housing (1); characterized in that: Two U-shaped blocks (2) are fixedly connected to the bottom surface of the inner wall of the shielding shell (1); a sliding block (3) is slidably provided on the inner wall of the U-shaped block (2); the upper ends of the two sliding blocks (3) are fixedly connected to the inner shell (4); the upper end of the inner shell (4) is fixedly connected to a sliding block (5); the upper end of the sliding block (5) is in contact with the top surface of the inner wall of the shielding shell (1); A first ventilation plate (8) and a second ventilation plate (9) are fixedly connected through the lower end of the inner shell (4); ventilation slots are provided through the upper ends of the first ventilation plate (8) and the second ventilation plate (9); and a filter screen is fixedly connected to the inner wall of the ventilation slot; A heat dissipation fan (6) is fixedly connected to one side of the inner wall of the inner shell (4), the air outlet end of the heat dissipation fan (6) faces downward, and a circuit board (7) is fixedly connected to the middle of the inner wall of the inner shell (4); A first moving mechanism is provided on one side of the inner shell (4), a second threaded sleeve (21) is mounted on the first moving mechanism, an upper end of the second threaded sleeve (21) is fitted with a lower end of the inner shell (4), and a lower end of the second threaded sleeve (21) is fitted with a bottom surface of an inner wall of the shielding shell (1); A second moving mechanism is provided on the bottom surface of the inner wall of the inner shell (4), and a heat-conducting frame (17) is mounted on the second moving mechanism. The upper end of the heat-conducting frame (17) is in contact with the lower end of the circuit board (7), and the lower end of the heat-conducting frame (17) is in contact with the upper end of the second ventilation plate (9); A plug mechanism is provided at the upper end of the shielding shell (1); One side of the shielding shell (1) is open, a first ventilation space (24) is formed between one side of the inner shell (4) and the inner wall of the other side of the shielding shell (1), and a second ventilation space (25) is formed between the U-shaped block (2) and the second threaded sleeve block (21).

2. The anti-interference voice switch housing structure according to claim 1 is characterized in that: The first moving mechanism comprises a connecting block (18), a second motor (19) and a second screw (20); the connecting block (18) is fixedly connected to a lower portion of one side of the inner shell (4), the second motor (19) is fixedly connected to an inner wall of the connecting block (18), the second screw (20) is fixedly connected to an output shaft of the second motor (19), and a second threaded sleeve block (21) is threadedly mounted on a side wall of the second screw (20).

3. The anti-interference voice switch housing structure according to claim 1 is characterized in that: The second moving mechanism comprises a first motor (14), a first screw rod (15) and a first threaded sleeve (16); the first motor (14) is fixedly connected to the bottom surface of the inner wall of the inner shell (4); the first screw rod (15) is fixedly connected to the output shaft of the first motor (14); the first threaded sleeve (16) is threadedly mounted on the side wall of the first screw rod (15); and the side wall of the first threaded sleeve (16) is fixedly connected to the inner wall of the heat conducting frame (17).

4. The anti-interference voice switch housing structure according to claim 1 is characterized in that: The plug mechanism comprises a first slot body (10), a rotating column (11), a rubber block (12) and a socket (22); the first slot body (10) is penetrated through the upper end of the shielding shell (1), the rotating columns (11) are rotatably mounted on the left and right ends of the inner wall of the first slot body (10), the rubber blocks (12) are fixedly connected to both sides of the inner wall of the first slot body (10), the side wall of the rotating column (11) and the ends of the two rubber blocks (12) close to each other are both fitted, and a plurality of sockets (22) are opened on the side wall of the rotating column (11), and the sockets (22) are electrically connected to the circuit board (7).

5. The anti-interference voice switch housing structure according to claim 4 is characterized in that: The side wall of the rotating column (11) is provided with evenly distributed second slots (13).

6. The anti-interference voice switch housing structure according to claim 4 is characterized in that: The side wall of the rotating column (11) is fixedly connected to a limiting block (23), and the upper end of the limiting block (23) is in contact with the top surface of the inner wall of the shielding shell (1).

7. The anti-interference voice switch housing structure according to claim 1 is characterized in that: A plurality of sockets are provided on one side of the inner shell (4).

8. The anti-interference voice switch housing structure according to claim 1 is characterized in that: The filter is a metal shielding mesh.

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