Loudspeaker with tone tuning paper pasted inside

Abstract

The utility model discloses a loudspeaker with tone tuning paper attached inside, which comprises a loudspeaker shell, U iron, a magnet, a washer, a voice coil and a vibrating diaphragm, the loudspeaker shell comprises a cylindrical side wall and a bottom wall, a mounting through hole is arranged at the center of the bottom wall, the U iron is embedded in the mounting through hole, and the magnet is arranged at the center of the U iron. A washer is embedded in the mounting through hole along the edge of a hole opening, an annular groove is formed by the outer edge of the magnet and the inner edge of the washer, the voice coil is inserted into the annular groove in a suspended mode, the upper end of the voice coil is bonded with the center of the vibrating diaphragm, and the edge of the vibrating diaphragm is bonded with the edge of the side wall of the loudspeaker shell. The bottom wall is annular and is provided with a plurality of air inlet holes which are uniformly arranged at intervals, and annular tuning paper is attached to the upper surface of the bottom wall. Compared with the mode that the tuning paper is attached to the outer side of the bottom wall, the sound generated by the loudspeaker enters the air inlet to form diffuse reflection to cause noise. The tone tuning paper is pasted on the air inlet hole in the inner side of the bottom wall, a plane for absorbing and reflecting sound is formed on the surface of the air inlet hole, and the bass effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker with tuning paper pasted inside. Background Art

[0002] A speaker is a sound-producing device that converts electrical signals into acoustic signals for output. This includes speakers in speaker boxes and headphones. Headphones are particularly popular among consumers for their portability and excellent stereo sound quality. Existing headphone speakers typically consist of a speaker housing, which houses a magnet, washer, voice coil, and diaphragm. The magnet generates a magnetic field, and when current flows through the voice coil, it generates a magnetic field that interacts with the magnet's magnetic field, causing the diaphragm to vibrate and produce sound. During the diaphragm's vibration, air inlets, also known as tuning holes, are required to address air pressure issues within the speaker. When the vibrations within the speaker drive air flow, the air pressure rises, increasing the resistance to the diaphragm's vibration, resulting in a muffled and less clear sound. The air inlet design effectively balances the pressure inside and outside the speaker, preventing the increased air pressure from affecting sound quality. Existing methods place tuning paper on the bottom of the speaker housing, corresponding to the air inlet. This causes sound generated within the housing to enter the cavity of the air inlet, where it diffusely reflects off the walls, producing noise and less than ideal bass. Furthermore, existing tuning paper is typically designed as a ring with a notch. The notch corresponds to the location of the circuit board on the bottom of the speaker. Therefore, attaching the tuning paper requires precise alignment and adjusting the direction of the notch, which is time-consuming and labor-intensive. Therefore, it is necessary to optimize and improve existing speakers to address these issues. Utility Model Content

[0003] In view of this, the present invention proposes a speaker with tuning paper pasted inside. The tuning paper is pasted inside without avoiding the position for installing the circuit board, which is convenient for pasting and is conducive to producing better bass effect.

[0004] The technical solution of the utility model is: a speaker with tuning paper pasted inside, which includes a speaker shell, a U iron, a magnet, a washer, a voice coil and a diaphragm, the speaker shell includes a cylindrical side wall and a bottom wall arranged in the side wall, a mounting through hole is provided at the center of the bottom wall, the U iron is embedded in the mounting through hole, and the magnet is set at the center of the U iron; the washer is embedded at the edge of the upper edge of the mounting through hole, the outer edge of the magnet and the inner edge of the washer form an annular groove, the voice coil is suspended and inserted in the annular groove, the upper end of the voice coil is bonded to the center of the diaphragm, and the edge of the diaphragm is bonded to the edge of the side wall of the speaker shell; the bottom wall is annular, and a plurality of air inlet holes are evenly provided on the bottom wall. A ring-shaped tuning paper is pasted along the upper surface of the bottom wall, and a mounting slot is provided on the back corresponding to the bottom wall, and a circuit board is provided in the mounting slot, and the wire end of the voice coil passes through the side wall and is welded to the circuit board.

[0005] Furthermore, a first step is provided between the outer edge of the bottom wall and the side wall, and the edge of the diaphragm is fixed to the first step by gluing.

[0006] Furthermore, a second sunken step is provided at the edge of the upper opening of the mounting through hole, and the washer is fixed to the second step by gluing.

[0007] Furthermore, the mounting through hole has a mounting through hole side wall extending downward along its through hole edge, the U iron is inserted from the lower end of the mounting through hole side wall, tightly connected and fixed by adhesive, and the upper surface of the magnet in the U iron is flush with the upper surface of the washer.

[0008] Furthermore, the air inlet hole has a depth of 0.5 to 2.0 mm, and the tuning paper is made of any one of non-woven fabric, nylon mesh, polyester mesh, and breathable film.

[0009] Furthermore, a notch is provided at a position of the side wall corresponding to a position close to the installation slot, and a wire end of the voice coil passes through the notch and is connected to the circuit board.

[0010] The beneficial effects of the present invention are as follows: The speaker designed using this technical solution has a main innovative design in that multiple air inlet holes are arranged at even intervals on the bottom wall inside the speaker housing. A ring-shaped tuning paper is attached to the upper surface corresponding to the multiple air inlet holes, that is, the upper surface of the bottom wall corresponding to the bottom wall inside the speaker housing. Compared to the existing method of attaching tuning paper to the bottom of the bottom wall corresponding to the outside of the speaker housing, attaching tuning paper to the outside bottom allows sound to enter the cavity of the corresponding air inlet hole inside the speaker, causing diffuse reflection from the cavity wall, thus producing noise. Attaching the tuning paper from the opening of the internal air inlet hole prevents the sound from entering the cavity of the air inlet hole and causing diffuse reflection, thus preventing noise. This allows the sound to strike the tuning paper on the air inlet hole, enter the cavity, and then exit from the opening corresponding to the outside of the air inlet hole, creating an effect similar to that of striking a drumhead, thereby facilitating the output of a better bass effect. At the same time, the bottom wall inside the speaker housing serves as a ring-shaped pasting position, so that circular tuning paper can be quickly pasted. Unlike the case of pasting it on the outer bottom, it is not necessary to avoid the position where the circuit board is installed. Therefore, it is also beneficial to improve the efficiency of pasting the tuning paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure decomposition of an embodiment of the present utility model.

[0012] Figure 2 This is a schematic diagram of the bottom structure of the overall structure of an embodiment of the present utility model. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts are also within the scope of protection of the present disclosure.

[0014] Please refer to Figure 1 、 Figure 2The present invention provides a specific embodiment of a speaker with a tuning paper inside, which mainly includes a speaker housing 1, a U iron 2, a magnet 3, a washer 4, a voice coil 6 and a diaphragm 7. The speaker housing 1 includes a cylindrical side wall 101 and a bottom wall 102 arranged inside the side wall 101. A mounting hole 103 is provided at the center of the bottom wall 102. The U iron 2 is embedded in the mounting hole 103, and the magnet 3 is arranged at the center of the U iron 2; the washer 4 is embedded along the edge of the upper edge of the mounting hole 103, and the outer edge of the magnet 3 and the inner edge of the washer 4 form an annular groove. 304, the voice coil 6 is suspended and inserted in the annular groove 304, the upper end of the voice coil 6 is bonded to the center of the diaphragm 7, and the edge of the diaphragm 7 is bonded to the edge of the side wall 101 of the speaker housing 1; the bottom wall 102 is annular, and is provided with a plurality of air inlet holes 1021 evenly spaced, and a tuning paper 5 in the shape of an annular is affixed along the upper surface of the bottom wall 102, and a mounting slot 106 is provided on the back corresponding to the bottom wall 102, and the mounting slot 106 is provided with a circuit board 8, and the wire end of the voice coil 6 passes through the side wall 101 and is welded to the circuit board 8.

[0015] A ring-shaped piece of tuning paper 5 is attached to the upper surface corresponding to the multiple air inlet holes 1021, that is, the upper surface of the bottom wall 102 corresponding to the interior of the speaker housing 1. The tuning paper 5 is attached from the openings of the internal air inlet holes 1021. This prevents sound from entering the cavity of the air inlet holes 1021 and causing diffuse reflection, thus eliminating noise. When sound strikes the tuning paper 5 on the air inlet holes 1021, it enters the cavity and then exits through the openings corresponding to the outside of the air inlet holes 1021, creating an effect similar to that of striking a drumhead, thus facilitating the output of a better bass effect.

[0016] A first step position 104 is provided between the outer edge of the bottom wall 102 and the side wall 101. The edge of the diaphragm 7 is fixed to the first step position 104 by gluing. The first step position 104 provides a height between the bonded diaphragm 7 and the bottom wall 102, and is also conducive to gluing and bonding at the first step position 104, thereby keeping the bottom wall 102 below the first step position 104 clean.

[0017] A second sunken step is provided on the edge of the upper end opening of the mounting through hole 103 , and the washer 4 is fixed to the second step by gluing. The sunken second step enables a better and smoother mounting of the washer 4 .

[0018] Preferably, the mounting hole 103 has a mounting hole side wall 1031 extending downward along its edge, and the U iron 2 is inserted from the lower end of the mounting hole side wall 1031, tightly connected and fixed by adhesive, and the upper surface of the magnet 3 in the U iron 2 is flush with the upper surface of the washer 4.

[0019] Preferably, the depth of the air inlet holes 1021 is 0.5 to 2.0 mm. With this depth, the inner wall of the air inlet holes 1021 forms a cavity. The sound produced by the speaker, particularly low-frequency sound, impacts the surface of the tuning paper 5 and enters the cavity, enhancing the bass sound effect and making the bass more intense. The tuning paper 5 can be made of any one of non-woven fabric, nylon mesh, polyester mesh, or breathable film. Different tuning papers 5 can produce different sound effects in the speaker.

[0020] Furthermore, the side wall 101 is provided with a slot 105 at a position corresponding to the mounting slot 106, and the wire end of the voice coil 6 passes through the slot 105 and is connected to the circuit board 8. After the wire end of the voice coil 6 passes through the slot 105, it is fixed by gluing at the slot 105, thereby protecting the wire end of the voice coil 6.

[0021] While various embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A speaker with tuning paper pasted inside, comprising a speaker housing (1), a U iron (2), a magnet (3), a washer (4), a voice coil (6) and a diaphragm (7), characterized in that: The speaker housing (1) comprises a cylindrical side wall (101) and a bottom wall (102) arranged inside the side wall (101); a mounting through hole (103) is provided at the center of the bottom wall (102); the U iron (2) is embedded in the mounting through hole (103); the magnet (3) is provided at the center of the U iron (2); the washer (4) is embedded along the edge of the hole opening of the mounting through hole (103); the outer edge of the magnet (3) and the inner edge of the washer (4) form an annular groove (304); the voice coil (6) is suspended and inserted into the annular groove (304); the voice coil (6) is The upper end is bonded to the center of the diaphragm (7), and the edge of the diaphragm (7) is bonded to the edge of the side wall (101) of the speaker housing (1); the bottom wall (102) is annular, and a plurality of air inlet holes (1021) are evenly spaced and arranged on the bottom wall (102); a tuning paper (5) in the shape of an annular ring is affixed along the upper surface of the bottom wall (102); a mounting slot (106) is provided on the back corresponding to the bottom wall (102); a circuit board (8) is provided in the mounting slot (106); the wire end of the voice coil (6) passes through the side wall (101) and is welded to the circuit board (8).

2. The speaker with tuning paper inside according to claim 1, characterized in that: A first step position (104) is provided between the outer edge of the bottom wall (102) and the side wall (101), and the edge of the diaphragm (7) is fixed to the first step position (104) by gluing.

3. The speaker with tuning paper inside according to claim 1, characterized in that: A second step position is sunken at the edge of the upper end opening of the mounting through hole (103), and the washer (4) is fixed to the second step position by gluing.

4. The speaker with tuning paper attached thereto according to claim 3, characterized in that: The mounting through hole (103) has a mounting through hole side wall (1031) extending downward along the through hole edge thereof. The U iron (2) is inserted from the lower end of the mounting through hole side wall (1031), tightly connected and fixed by adhesive bonding. The upper surface of the magnet (3) in the U iron (2) is flush with the upper surface of the washer (4).

5. The speaker with tuning paper inside according to claim 1, characterized in that: The air inlet hole (1021) has a hole depth of 0.5 to 2.0 mm, and the tuning paper (5) is made of any one of non-woven fabric, nylon mesh, polyester mesh, and breathable film.

6. The speaker with tuning paper inside according to claim 1, characterized in that: The side wall (101) is provided with a notch (105) at a position corresponding to and close to the installation slot (106), and the wire end of the voice coil (6) passes through the notch (105) and is connected to the circuit board (8).

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