Closed vibration horn

Abstract

The utility model belongs to the technical field of horns, and particularly relates to a closed vibration horn, which comprises a shell, a PCB (printed circuit board) arranged in the shell, a voice coil, a washer, U-shaped iron, a vibrating reed, a magnet and a washer ring sleeved outside the U-shaped iron, the magnet and the washer are arranged in the U iron, and the washer is arranged on the surface of the magnet; with the adoption of the structure, the washer, the U iron, the vibrating reed, the magnet and the washer ring are bonded together through sealant to form a vibrating system, the PCB and the voice coil are bonded together through sealant and cover the vibrating system, and the whole vibrating system is completely arranged in the shell; meanwhile, the circumferential surface of the PCB is bonded with the inner wall of the shell through the sealant, so that the whole vibration system is completely sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, and in particular to a sealed vibration loudspeaker capable of sealing a vibration system to achieve waterproofing. Background Art

[0002] A speaker comprises a housing, and components such as a washer, a diaphragm, a magnet, and a voice coil located within the housing. The magnet, washer, and diaphragm are assembled to form a vibration system, and the vibration system and voice coil are placed within the housing. However, the structures of vibrators currently on the market are mostly similar, with sound outlets and non-woven fabrics, which cannot achieve complete waterproofing. Therefore, the vibration system cannot meet the waterproof requirement and is easily damaged in a humid environment with water. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the present invention aims to provide a sealed vibration speaker.

[0004] The technical solution is: a closed vibration speaker, including: a shell, a PCB board, a voice coil, a washer, a U iron, a vibration plate and a magnet arranged therein, and also including a washer ring mounted on the outside of the U iron; the magnet and the washer are arranged in the U iron and the washer is placed on the surface of the magnet.

[0005] Preferably, the shell is made of aluminum, is cylindrical, has one end closed and the other end provided with an opening; a radial step surface is provided on the inner wall of the open end of the shell.

[0006] Preferably, the PCB board is circular, is arranged in the open end of the housing and is placed on the radial step surface; the circumferential surface of the PCB board contacts the inner wall at the radial step surface; and a notch is provided at the edge of the PCB board.

[0007] Preferably, the cross section of the U iron is circular and its longitudinal section is U-shaped, and a circular sinking portion is provided on the inner bottom surface of the U iron; the magnet is cylindrical and its bottom surface is placed in the circular sinking portion; the washer is disc-shaped and placed on the upper surface of the magnet.

[0008] Preferably, the voice coil is circular in shape, and one end is connected to the back of the PCB board, the other end of the voice coil extends into the open end of the U iron and the washer is located inside the other end of the voice coil; there is a gap between the outer wall of the voice coil and the inner wall of the U iron, and there is a gap between the inner wall of the voice coil and the outer wall of the washer.

[0009] Preferably, a radial second step surface is further provided on the inner wall of the shell, the vibration plate is circular and its outer edge surface is placed on the second step surface; the vibration plate is sleeved on the outside of the U iron.

[0010] Preferably, a radial annular boss integrally formed therewith is provided on the outer wall of the open end of the U iron, and the radial annular boss is placed on the inner edge surface of the vibration plate.

[0011] Preferably, the washer ring is circular and is sleeved on the outside of the U iron; the washer ring is located below the vibration plate; and a plurality of strip-shaped arc-shaped through holes are provided in the vibration plate.

[0012] Technical effect: The vibration speaker of the utility model includes a shell, a magnet and a washer arranged inside the U iron, and a vibration plate and a washer ring are arranged outside the U iron; the washer, U iron, vibration plate, magnet and washer ring are bonded together with sealant to form a vibration system, the PCB board and the voice coil are bonded together with the sealant and covered on the vibration system, and the entire vibration system is completely placed in the shell; at the same time, the circumferential surface of the PCB board and the inner wall of the shell are bonded with sealant to achieve complete sealing of the entire vibration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top-down perspective view of an embodiment of the present invention;

[0014] Figure 2 This is a bottom-view stereoscopic diagram of an embodiment of the present invention;

[0015] Figure 3 An exploded view of an embodiment of the present utility model;

[0016] Figure 4 It is a cross-sectional view of an embodiment of the present utility model.

[0017] Figure numerals: housing-1, radial step surface-101, second step surface-102, PCB board-2, notch-201, voice coil-3, washer-4, U iron-5, circular sinking part-501, vibration plate-6, strip arc perforation-601, magnet-7, washer ring-8, radial annular boss-9. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and implementation methods.

[0019] like Figure 3-Figure 4 As shown, the present invention provides a sealed vibration speaker, comprising: a housing 1, a PCB 2, a voice coil 3, a washer 4, a U-shaped iron 5, a vibration plate 6, and a magnet 7 disposed therein. The housing 1 also includes a washer ring 8 disposed on the outside of the U-shaped iron 5. The magnet 7 and washer 4 are disposed within the U-shaped iron, and the washer is placed on the surface of the magnet. The washer ring 8 is used to support and secure the vibration plate 6.

[0020] like Figure 1-Figure 2As shown, specifically, in this embodiment, the housing 1 is made of aluminum, is cylindrical, has one end closed and the other end provided with an opening; a radial step surface 101 is provided on the inner wall of the open end of the housing, as shown in FIG. Figure 3 shown.

[0021] like Figure 3 As shown, the circular PCB 2 is located within the open end of the housing 1 and rests on a radial step surface 101. The circumferential surface of the PCB contacts the inner wall of the radial step surface. A notch 201 is provided at the edge of the PCB 2. This notch is used to route the connecting wires of the voice coil 3 to prevent them from being pinched off. After routing, the notch is sealed with sealant.

[0022] like Figure 3-Figure 4 As shown, the cross section of the U iron 5 is circular and its longitudinal section is U-shaped, and a circular sinking portion 501 is provided on the inner bottom surface of the U iron; the magnet 7 is cylindrical and its bottom surface is placed in the circular sinking portion; the washer 4 is disc-shaped and placed on the upper surface of the magnet.

[0023] like Figure 3-Figure 4 As shown, the voice coil 3 is circular, with one end connected to the back of the PCB 2. The other end of the voice coil extends into the open end of the U-shaped iron 5, and the washer 4 is located inside the other end of the voice coil. There is a gap between the outer wall of the voice coil and the inner wall of the U-shaped iron 5, and a gap between the inner wall of the voice coil and the outer wall of the washer 4. In other words, the other end of the voice coil has no direct contact with either the inner wall of the U-shaped iron 5 or the outer wall of the washer 4.

[0024] like Figure 3-Figure 4 As shown, in order to install the vibration plate 6, a radial second step surface 102 is further provided on the inner wall of the shell 1. The vibration plate 6 is circular and its outer edge surface is placed on the second step surface; the vibration plate is sleeved on the outside of the U iron 5.

[0025] like Figure 4 As shown, in order to install the U iron 5 and the vibration plate 6 together, a radial annular boss 9 is provided on the outer wall of the open end of the U iron 5 and is integrally formed therewith. The radial annular boss is placed on the inner edge surface of the vibration plate 6.

[0026] like Figure 3-Figure 4 As shown, the washer ring 8 is circular and is mounted on the outside of the U-iron 5. The washer ring is located below the vibration plate 6. The vibration plate is provided with a plurality of strip-shaped arc-shaped perforations 601. The strip-shaped arc-shaped perforations are used to adjust the rigidity of the vibration plate 6 and the vibration amplitude of the vibration plate.

[0027] In the above description, it should be noted that the terms "installed", "connected", "connected" and other corresponding terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components; "provided in" should be understood as "installed in, set in", including fixed installation, movable installation and other installation methods.

[0028] Obviously, the embodiments described above are only some of the embodiments of the present invention, not all of them. The drawings provide preferred embodiments of the present invention, but do not limit the scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Any equivalent structure made by using the contents of the present invention specification and drawings, directly or indirectly applied in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A sealed vibration speaker, comprising: A housing (1) is provided with a PCB board (2), a voice coil (3), a washer (4), a U iron (5), a vibration plate (6) and a magnet (7) therein, and is characterized in that it also includes a washer ring (8) sleeved on the outside of the U iron (5); the magnet (7) and the washer (4) are provided in the U iron, and the washer is placed on the surface of the magnet.

2. A sealed vibration speaker according to claim 1, characterized in that: The shell (1) is made of aluminum, is cylindrical, has one end closed and the other end provided with an opening; a radial step surface (101) is provided on the inner wall of the open end of the shell.

3. A sealed vibration speaker according to claim 2, characterized in that: The PCB board (2) is circular, arranged in the open end of the housing (1) and placed on the radial step surface (101); the circumferential surface of the PCB board contacts the inner wall of the radial step surface; and a notch (201) is provided at the edge of the PCB board (2).

4. The enclosed vibration speaker according to claim 1, wherein: The U iron (5) has a circular cross section and a U-shaped longitudinal cross section, and a circular sinking portion (501) is provided on the inner bottom surface of the U iron; the magnet (7) is cylindrical and its bottom surface is placed in the circular sinking portion; the washer (4) is disc-shaped and is placed on the upper surface of the magnet.

5. A sealed vibration speaker as claimed in claim 4, characterized in that: The voice coil (3) is circular, and one end is connected to the back of the PCB board (2), the other end of the voice coil extends into the open end of the U iron (5), and the washer (4) is located inside the other end of the voice coil; there is a gap between the outer wall of the voice coil and the inner wall of the U iron (5), and there is a gap between the inner wall of the voice coil and the outer wall of the washer (4).

6. The sealed vibration speaker according to claim 4, characterized in that: A radial second step surface (102) is also provided on the inner wall of the housing (1); the vibration plate (6) is circular and its outer edge surface is placed on the second step surface; the vibration plate is sleeved on the outside of the U iron (5).

7. The sealed vibration speaker according to claim 6, characterized in that: A radial annular boss (9) formed integrally with the U iron (5) is provided on the outer wall of the open end thereof, and the radial annular boss is placed on the inner edge surface of the vibration plate (6).

8. The sealed vibration speaker according to claim 6, characterized in that: The washer ring (8) is circular and is sleeved on the outside of the U iron (5); the washer ring is located below the vibration plate (6); and a plurality of strip-shaped arc-shaped through holes (601) are provided in the vibration plate.

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