Super-linear vibration reduction loudspeaker

Abstract

The utility model discloses a super linear vibration reduction loudspeaker, comprising a vibration system formed by bonding a voice diaphragm, an FPC soft board, a voice coil and a frame body, and a magnetic circuit system formed by bonding a U iron, a washer and a magnet in sequence, the magnetic circuit system is connected on the frame body through a flexible material, and one end of the frame body far away from the voice diaphragm is covered and bonded with an auxiliary vibration diaphragm. The beneficial effects of the utility model are that the magnetic circuit system formed by sequentially bonding the U iron, the washer and the magnet is bonded on the frame body of the vibration system through the flexible material, vibration energy generated by the frame body when the voice coil sounds is absorbed through the flexible material, and one end of the frame body far away from the voice diaphragm is covered and bonded with the auxiliary vibration diaphragm. The vibration generated by the frame body is buffered through the auxiliary vibrating diaphragm, and the vibration energy of the frame body is further absorbed, so that the risk that the shell is driven to vibrate due to the vibration of the frame body is reduced, and resonance of the whole machine is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical structures, in particular to a super linear vibration reduction loudspeaker. Background Art

[0002] With the progress and development of society, people have higher and higher requirements for the listening experience of music. As the sound conductor, the speakers are also rising accordingly. Under the premise of the same specifications, speakers are required to meet higher performance requirements.

[0003] Current speakers rigidly connect the voice coil to the frame, and the U-iron to the frame. When the speaker is in operation, especially when operating at high power, the energy vibration caused by the sound of the voice coil is transmitted to other parts of the speaker. The vibration of other parts causes the speaker housing to vibrate, and the housing vibration is transmitted to other parts of the entire machine, causing the risk of resonance of the entire machine. Summary of the invention

[0004] The utility model aims to provide a super linear vibration reduction loudspeaker, which absorbs the vibration energy of the frame through flexible materials and auxiliary diaphragms, thereby reducing the risk of resonance of the whole machine caused by the vibration of the shell.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0006] A super linear vibration damping loudspeaker, comprising a vibration system consisting of a sound diaphragm, an FPC soft board, a voice coil and a frame, and a magnetic circuit system consisting of a U iron, a washer and a magnet bonded in sequence, wherein the magnetic circuit system is connected to the frame through a flexible material, and an auxiliary diaphragm is bonded to one end of the frame away from the sound diaphragm.

[0007] The utility model adopting the above scheme realizes super-linear design by adding FPC soft board in the vibration system and utilizing the good bending property of FPC soft board, thereby improving the power resistance of the single unit and increasing the original power from 1W to 4W-5W, which is beneficial to the EQ adjustment compensation of each frequency band, especially in the low and medium frequency part, which can be increased to 6db to achieve better listening effect. The magnetic circuit system composed of U iron, washer and magnet bonded in sequence is bonded to the frame of the vibration system through flexible material, and the vibration energy generated by the frame when the voice coil is sounded is absorbed by the flexible material, and an auxiliary diaphragm is bonded to the end of the frame away from the sound membrane, and the vibration generated by the frame is buffered by the auxiliary diaphragm, and the vibration energy of the frame is further absorbed, thereby reducing the risk of the shell vibrating due to the vibration of the frame, and preventing the whole machine from resonating.

[0008] Preferably, a plurality of positioning grooves are formed on the inner side of the frame, and the positioning grooves cooperate with the U iron.

[0009] In this way, by forming a plurality of positioning grooves on the inner side of the frame and matching the positioning grooves with the U iron, the U iron is positioned to prevent the U iron from being displaced when the speaker sounds, thereby affecting the quality of the speaker.

[0010] Preferably, the flexible material comprises a plurality of pieces, the cross section of the flexible material is U-shaped, the outer side of each flexible material is matched with the corresponding positioning groove, and the inner side is matched with the U iron.

[0011] In this way, by setting the cross-section of the flexible material to a U shape, the outer side of each flexible material cooperates with the corresponding positioning groove, and the inner side cooperates with the U iron, so that the vibration energy in the vibration system can be absorbed by the flexible material, thereby reducing the risk of shell vibration.

[0012] Preferably, the U-iron is in the shape of a rectangular parallelepiped as a whole, and positioning parts extending outward are formed at both ends of the rectangular parallelepiped, and the positioning parts cooperate with the inner side of the U shape of the flexible material.

[0013] In this way, by forming positioning parts extending outward at both ends of the rectangular parallelepiped of the U iron, and by the positioning parts cooperating with the U-shaped inner side of the flexible material, the positioning effect of the U iron is improved.

[0014] Preferably, flanges are formed on both sides of the U-iron, and the magnet and the washer are sequentially bonded and connected to the U-iron and are located between the flanges.

[0015] In this way, by arranging flanges on both sides of the U iron, the magnet and the washer are protected by the flanges.

[0016] Preferably, the FPC soft board has a rectangular plate structure as a whole, and the rectangular plate structure is composed of multiple bent and connected inner and outer circles. Corresponding copper foils are respectively embedded in the substrates at both ends of the FPC soft board, and two disconnected passages are formed through the copper foil, and the two passages are respectively located at the two ends of the FPC soft board.

[0017] In this way, by making the FPC soft board into a rectangular plate structure as a whole, the rectangular plate structure is composed of multiple bent and connected inner and outer circles, so that the FPC soft board can be divided into multiple bent linear structures through long strip hollowing, thereby improving the tensile strength of the FPC soft board, so that the FPC soft board can deform with the up and down vibration of the vibration system, and avoiding the breakage of the welding points caused by the pulling of the voice coil input and output lines during vibration.

[0018] Preferably, a first solder pad point and a second solder pad point are respectively formed on the passage at one end of the FPC soft board, and a third solder pad point and a fourth solder pad point are respectively formed on the other passage. The second solder pad point is welded to the output line of the voice coil, and the first solder pad point is welded to the positive electrode of the external power supply; the fourth solder pad point is welded to the input line of the voice coil, and the third solder pad point is welded to the negative electrode of the external power supply.

[0019] In this way, by setting the first solder pad point on the FPC soft board to weld with the voice coil outlet line, the third solder pad point to weld with the positive pole of the external power supply, the second solder pad point to weld with the voice coil input line, and the third solder pad point to weld with the negative pole of the external power supply, the speaker is convenient to achieve conduction.

[0020] Preferably, the outer ring of the FPC soft board is bonded to the frame, and the lower end of the inner ring is bonded to the voice coil.

[0021] By bonding the outer circle of the FPC soft board to the frame and the lower end of the inner circle to the voice coil, instead of directly rigidly connecting the voice coil and the frame, when the voice coil vibrates, part of the vibration energy can be absorbed by the FPC soft board, thereby reducing the risk of resonance of the whole machine.

[0022] Preferably, the auxiliary diaphragm is rectangular as a whole and is bonded to the frame by glue.

[0023] In this way, by setting the auxiliary diaphragm as a whole in a rectangular shape and bonding it to the frame with glue, a super-linear design is achieved and the power resistance of the single unit is improved.

[0024] Preferably, the flexible material is rubber.

[0025] In this way, it is easy to utilize the high damping properties of rubber to absorb vibration energy.

[0026] The beneficial effects of the utility model are: by adding the FPC soft board in the vibration system, the power resistance of the single unit is increased, and the original power of 1W is increased to 4W~5W, which is beneficial to the EQ adjustment compensation of each frequency band, especially in the low and medium frequency parts, it can be increased to 6db to achieve a better listening effect. The magnetic circuit system composed of U iron, washer and magnet bonded in sequence is bonded to the frame of the vibration system through a flexible material, and the flexible material absorbs the vibration energy generated by the frame when the voice coil is pronounced, and the auxiliary diaphragm is covered and bonded on the end of the frame away from the sound membrane. The auxiliary diaphragm buffers the vibration generated by the frame, further absorbs the vibration energy of the frame, and then reduces the risk of vibration of the shell caused by the vibration of the frame, and prevents the whole machine from resonating. Several positioning grooves are formed on the inner side of the frame, and the positioning grooves are matched with the U iron to position the U iron to prevent the U iron from being displaced when the speaker sounds, affecting the quality of the speaker. By bonding the outer circle of the FPC soft board to the frame and the lower end of the inner circle to the voice coil, instead of directly rigidly connecting the voice coil and the frame, when the voice coil vibrates, part of the vibration energy can be absorbed by the FPC soft board, thereby reducing the risk of resonance of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an exploded view of the utility model;

[0028] Figure 2 It is a structural diagram of the frame of the utility model;

[0029] Figure 3 This is the appearance structure diagram of the utility model;

[0030] Figure 4 For this utility model Figure 3 Cross-sectional view of AA in the middle;

[0031] Figure 5 This is a structural diagram of the FPC soft board of the utility model. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described.

[0033] The figure marks in the drawings of the specification include: sound membrane 1, FPC soft board 2, first solder pad point 21, second solder pad point 211, third solder pad point 22, fourth solder pad point 221, inner ring 23, outer ring 24, voice coil 3, washer 4, magnet 5, frame 6, positioning groove 61, flexible material 7, U iron 8, positioning part 81, flange 82, auxiliary diaphragm 9.

[0034] Embodiment 1, as Figure 1 , Figure 2 and Figure 3As shown; a super linear vibration damping loudspeaker, including a vibration system composed of a sound membrane 1, an FPC soft board 2, a voice coil 3 and a frame 6 bonded together, and a magnetic circuit system composed of a U iron 8, a washer 4 and a magnet 5 bonded together in sequence, the magnetic circuit system is connected to the frame 6 through a flexible material 7, and the end of the frame 6 away from the sound membrane 1 is covered with an auxiliary diaphragm 9 bonded thereto.

[0035] See also Figures 1 to 5 , the inner side of the frame body 6 is formed with a plurality of positioning grooves 61, and the positioning grooves 61 are matched with the U iron 8. In this way, by forming a plurality of positioning grooves 61 on the inner side of the frame body 6 and matching the positioning grooves 61 with the U iron 8, the U iron 8 is positioned to prevent the U iron 8 from being displaced when the speaker sounds, thereby affecting the quality of the speaker.

[0036] See also Figure 1 The flexible material 7 includes several pieces, and the cross section of the flexible material 7 is U-shaped. The outer side of each flexible material 7 is matched with the corresponding positioning groove 61, and the inner side is matched with the U iron 8. In this way, by setting the cross section of the flexible material 7 to be U-shaped, the outer side of each flexible material 7 is matched with the corresponding positioning groove 61, and the inner side is matched with the U iron 8, so that the vibration energy in the vibration system is absorbed by the flexible material 7, and the risk of shell vibration is reduced.

[0037] See also Figure 1 and Figure 5 The U iron 8 is a rectangular parallelepiped as a whole, and positioning parts 81 extending outward are formed at both ends of the rectangular parallelepiped, and the positioning parts 81 cooperate with the U-shaped inner side of the flexible material 7. In this way, by forming positioning parts 81 extending outward at both ends of the rectangular parallelepiped of the U iron 8, and by the positioning parts 81 cooperating with the U-shaped inner side of the flexible material 7, the positioning effect of the U iron 8 is improved.

[0038] See also Figure 1 and Figure 4 , flanges 82 are formed on both sides of the U iron 8, and the magnet 5 and the washer 4 are sequentially bonded and connected to the U iron 8 and are located between the flanges 82. In this way, by providing flanges 82 on both sides of the U iron 8, the magnet 5 and the washer 4 are protected by the flanges 82.

[0039] See also Figure 1, the FPC soft board 2 is in the form of a rectangular plate structure as a whole, and the rectangular plate structure is composed of a plurality of bent and connected inner and outer circles, and corresponding copper foils are respectively embedded on the substrates at both ends of the FPC soft board 2, and two disconnected passages are formed through the copper foils, and the two passages are respectively located at the two ends of the FPC soft board 2. In this way, by making the FPC soft board 2 in the form of a rectangular plate structure as a whole, and the rectangular plate structure is composed of a plurality of bent and connected inner and outer circles, it is convenient to improve the tensile shape of the FPC soft board 2, so that the FPC soft board 2 can be deformed with the vibration system up and down, and the welding point is prevented from being broken when the incoming and outgoing wires of the voice coil 3 are pulled.

[0040] See also Figure 5 The outer ring of the FPC soft board 2 is bonded to the frame 6, and the lower end of the inner ring is bonded to the voice coil 3. By bonding the outer ring of the FPC soft board 2 to the frame 6 and the lower end of the inner ring to the voice coil 3, instead of directly rigidly connecting the voice coil 3 to the frame 6, when the voice coil 3 vibrates, the FPC soft board 2 absorbs part of the vibration energy, thereby reducing the risk of resonance of the whole machine.

[0041] See also Figure 1 , the first pad point 21 and the second pad point 211 are formed on the passage at one end of the FPC soft board 2, and the third pad point 22 and the fourth pad point 221 are formed on the other passage. The second pad point 211 is welded to the outgoing line of the voice coil 3, and the first pad point 21 is welded to the positive pole of the external power supply; the fourth pad point 221 is welded to the incoming line of the voice coil 3, and the third pad point 22 is welded to the negative pole of the external power supply. In this way, by setting the first pad point 21 on the FPC soft board 2 to weld the outgoing line of the voice coil 3, the third pad point 22 to weld the positive pole of the external power supply, the second pad point 211 to weld the incoming line of the voice coil 3, and the third pad point 22 to weld the negative pole of the external power supply, the speaker is convenient to be turned on.

[0042] See also Figure 1 The auxiliary diaphragm 9 is rectangular as a whole and is bonded to the frame 6 by glue. In this way, by setting the auxiliary diaphragm 9 as a whole in a rectangular shape and bonding it to the frame 6 by glue, a super-linear design is achieved and the power resistance of the single unit is improved. The flexible material 7 is made of rubber. In this way, it is convenient to use the high damping property of rubber to absorb vibration energy.

[0043] During installation, the sound membrane 1 is bonded to the upper end of the FPC soft board 2, the lower end of the outer ring 24 of the FPC soft board 2 is bonded to the frame 6, and the lower end of the inner ring 23 is bonded to the voice coil 3; the magnet 5 and the washer 4 are bonded to the U iron 8 at one time to form an assembly, and the flexible material 7 is bonded to the U iron 8; then the flexible material 7 (including the U iron 8 assembly) is bonded to the frame 6; finally, the lower end cavity of the frame 6 is covered by bonding through the auxiliary diaphragm 9.

[0044] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A super linear vibration reduction loudspeaker, characterized in that: The invention comprises a vibration system composed of a sound membrane (1), an FPC soft board (2), a voice coil (3) and a frame (6) bonded together, and a magnetic circuit system composed of a U iron (8), a washer (4) and a magnet (5) bonded together in sequence, wherein the magnetic circuit system is connected to the frame (6) via a flexible material (7), and an auxiliary vibration membrane (9) is bonded to one end of the frame (6) away from the sound membrane (1).

2. The super linear vibration damping loudspeaker according to claim 1, characterized in that: A plurality of positioning grooves (61) are formed on the inner side of the frame (6), and the positioning grooves (61) cooperate with the U iron (8).

3. The super linear vibration damping loudspeaker according to claim 2, characterized in that: The flexible material (7) comprises a plurality of pieces, the cross section of the flexible material (7) is U-shaped, the outer side of each piece of the flexible material (7) matches with the corresponding positioning groove (61), and the inner side matches with the U iron (8).

4. The super linear vibration damping loudspeaker according to claim 1, characterized in that: The U iron (8) is in the form of a rectangular parallelepiped as a whole, and positioning portions (81) extending outward are formed at both ends of the rectangular parallelepiped, and the positioning portions (81) are matched with the inner side of the U shape of the flexible material (7).

5. The super linear vibration damping loudspeaker according to claim 1, characterized in that: Both sides of the U iron (8) are formed with flanges (82), and the magnet (5) and the washer (4) are sequentially bonded and connected to the U iron (8) and are located between the flanges (82).

6. The super linear vibration damping loudspeaker according to claim 1, characterized in that: The FPC soft board (2) is in the form of a rectangular plate structure as a whole, the rectangular plate structure being composed of a plurality of bent and connected inner and outer circles, corresponding copper foils are respectively embedded in the base materials at both ends of the FPC soft board (2), two disconnected passages are formed through the copper foils, and the two passages are respectively located at the two ends of the FPC soft board (2).

7. The super linear vibration damping loudspeaker according to claim 6, characterized in that: A first solder pad point (21) and a second solder pad point (211) are respectively formed on the passage at one end of the FPC soft board (2), and a third solder pad point (22) and a fourth solder pad point (221) are respectively formed on the other passage; the second solder pad point (211) is welded to the outgoing wire of the voice coil (3), the first solder pad point (21) is welded to the positive electrode of the external power supply, the fourth solder pad point (221) is welded to the incoming wire of the voice coil (3), and the third solder pad point (22) is welded to the negative electrode of the external power supply.

8. The super linear vibration damping loudspeaker according to claim 6, characterized in that: The outer ring (24) of the FPC soft board (2) is bonded to the frame (6), and the lower end of the inner ring (23) is bonded to the voice coil (3).

9. The super linear vibration damping loudspeaker according to any one of claims 1 to 8, characterized in that: The auxiliary diaphragm (9) is rectangular in shape as a whole and is bonded to the frame by glue.

10. The super linear vibration damping loudspeaker according to any one of claims 1 to 8, characterized in that: The flexible material (7) is rubber.

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