An integrated cavity horn

Abstract

The utility model relates to a kind of loudspeaker of integrated cavity, comprising: metal support, U iron and sound production component, protruding installation part is set on the side wall of the containing cavity of metal support, and form gas pressure balance cavity on the first end of metal support, containing cavity is communicated with gas pressure balance cavity by air hole, U iron is set on installation part, and with magnetic component interval forms magnetic annular cavity, the first end of sound production component is movably inserted in magnetic annular cavity, the second end of sound production component is connected with the second end of metal support, in this way, metal support has the characteristics of high strength, good durability and excellent heat dissipation performance, can avoid the situation of fracture in assembly, detection and use process, so as to provide stable mechanical support, ensure assembly accuracy and the consistency of performance.Simultaneously, the gas pressure balance cavity formed by inwardly recessed is balanced in the way of the gas pressure inside containing cavity, can make the structure of metal support have better mechanical stability.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a loudspeaker with an integrated cavity. Background Technology

[0002] A loudspeaker is a very common amplification device and a modern electroacoustic component. Its function is to convert electrical signals into sound. It is widely used in electronic products such as speakers and headphones, and can be used to play audio. The volume can be adjusted to any level, making it convenient and bringing many conveniences to people's lives. When a loudspeaker is working, an audio current is transmitted to the voice coil. The magnetic field generated by the voice coil interacts with the magnetic field of the magnet, causing the cone to vibrate. Because the audio current changes constantly, the voice coil of the loudspeaker moves forward or backward, thus causing the cone to move accordingly. This vibration of the cone resonates with the surrounding air, producing sound.

[0003] Existing speaker brackets are usually made of plastic. Plastic brackets have the advantages of being lightweight, easy to process and mold, and having low production costs. However, plastic brackets lack strength and rigidity, and are prone to breakage during speaker assembly and performance testing after assembly. Furthermore, plastic brackets have poor durability over long-term use, affecting the assembly accuracy and performance consistency of the speaker. Utility Model Content

[0004] Therefore, it is necessary to provide a speaker with an integrated cavity.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A speaker with an integrated cavity, comprising:

[0006] A metal bracket has a receiving cavity, a mounting part is provided on the side wall of the receiving cavity, and a pressure balance cavity is formed on the first end of the metal bracket. A vent hole is provided on the side wall of the pressure balance cavity and the vent hole communicates with the receiving cavity.

[0007] U-shaped iron, wherein the U-shaped iron is disposed on the mounting part, and a magnetic component is disposed on the U-shaped iron, wherein a magnetic annular cavity is formed between the magnetic component and the U-shaped iron at a distance;

[0008] A sound-generating component is disposed within the receiving cavity, with its first end movably inserted into the magnetic annular cavity and its second end connected to the second end of the metal bracket.

[0009] In one embodiment, a cover plate is provided on the first end of the metal bracket, the cover plate encloses the air pressure balance chamber, and a vent hole is provided on the cover plate, the vent hole being connected to the air pressure balance chamber.

[0010] In one embodiment, the cover plate is provided with a mesh layer, which is aligned with the vent hole.

[0011] In one embodiment, the mounting part has a mounting hole, and the U-shaped iron has a connecting part that fits into the mounting hole.

[0012] In one embodiment, the sound-generating component includes a voice coil, a diaphragm, and a surround. The first end of the voice coil is movably inserted into the magnetic annular cavity, the second end of the voice coil is connected to the first end of the diaphragm, the second end of the diaphragm is connected to the first end of the surround, and the second end of the surround is connected to the second end of the metal bracket.

[0013] In one embodiment, the sound-generating component further includes a spider, which is sleeved on the voice coil and whose outer edge is connected to the sidewall of the receiving cavity.

[0014] In one embodiment, the sound-generating assembly further includes a dust cap that covers the second end of the voice coil.

[0015] In one embodiment, the magnetic component includes a magnet and a washer, the magnet and the washer being stacked sequentially on the U-shaped iron, and the magnet and the washer being located within the voice coil.

[0016] In one embodiment, a first terminal and a second terminal are spaced apart on the metal bracket. The first terminal is electrically connected to a first end of the voice coil, and the second terminal is electrically connected to a second end of the voice coil.

[0017] In one embodiment, the metal bracket is provided with a fixing part, and the fixing part has a fixing through hole.

[0018] The beneficial effects of this utility model are as follows: This utility model provides an integrated cavity speaker. A mounting portion is protruding from the side wall of the receiving cavity of the metal bracket, and a pressure balancing cavity is formed at the first end of the metal bracket. The receiving cavity is connected to the pressure balancing cavity through a vent hole. A U-shaped iron is mounted on the mounting portion and forms a magnetic annular cavity with the magnetic component at intervals. The first end of the sound-emitting component is movably inserted into the magnetic annular cavity, and the second end of the sound-emitting component is connected to the second end of the metal bracket. Thus, the metal bracket has the characteristics of high strength, good durability, and excellent heat dissipation, preventing breakage during assembly, testing, and use, thereby providing stable mechanical support and ensuring assembly accuracy and performance consistency. Simultaneously, the metal bracket has a thinner wall thickness than a plastic bracket of the same size, providing a larger volume receiving cavity while maintaining strength. The pressure balancing cavity formed by the inward indentation balances the internal air pressure of the receiving cavity, resulting in better mechanical stability of the metal bracket structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a speaker with an integrated cavity, as shown in one embodiment.

[0021] Figure 2 This is a three-dimensional exploded view of the speaker of an integrated cavity according to one embodiment;

[0022] Figure 3 This is a three-dimensional exploded view of the speaker of an integrated cavity according to one embodiment;

[0023] Figure 4 This is a cross-sectional structural diagram of a speaker with an integrated cavity, as shown in one embodiment.

[0024] Figure 5 This is a schematic diagram of the structure of a metal bracket according to one embodiment;

[0025] Figure 6 This is a schematic diagram of the structure of a metal bracket according to one embodiment.

[0026] In the attached diagram, 10 is a speaker with an integrated cavity; 100 is a metal bracket; 101 is a receiving cavity; 110 is a mounting part; 111 is a mounting hole; 120 is an air pressure balancing cavity; 121 is a vent hole; 130 is a fixing part; 131 is a fixing through hole; 200 is a U-shaped iron; 201 is a magnetic annular cavity; 210 is a magnetic component; 211 is a magnet; 212 is a washer; 220 is a connecting part; 300 is a sound-generating component; 310 is a voice coil; 320 is a diaphragm; 330 is a surround; 340 is a spider; 350 is a dust cap; 400 is a cover plate; 410 is a vent hole; 420 is a mesh layer; 510 is a first terminal block; and 520 is a second terminal block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0028] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a speaker 10 with an integrated cavity includes: a metal bracket 100, a U-shaped iron 200, and a sound-generating component 300. The metal bracket 100 has a receiving cavity 101, and a mounting portion 110 is protruding on the side wall of the receiving cavity 101. An air pressure balancing cavity 120 is formed on the first end of the metal bracket 100. A vent hole 121 is formed on the side wall of the air pressure balancing cavity 120 and communicates with the receiving cavity 101. The U-shaped iron 200 is disposed on the mounting portion 110, and a magnetic component 210 is disposed on the U-shaped iron 200. A magnetic annular cavity 201 is formed between the magnetic component 210 and the U-shaped iron 200. The sound-generating component 300 is disposed in the receiving cavity 101, with the first end of the sound-generating component 300 movably inserted into the magnetic annular cavity 201, and the second end of the sound-generating component 300 connected to the second end of the metal bracket 100.

[0030] In this embodiment, a mounting portion 110 is protruding on the side wall of the receiving cavity 101 of the metal bracket 100, which can indent the first end of the metal bracket 100 to form a pressure balance cavity 120. The receiving cavity 101 is connected to the pressure balance cavity 120 through a vent 121, that is, the air pressure in the receiving cavity 101 can be balanced with the air pressure of the external environment through the vent 121 and the pressure balance cavity 120. The U-shaped iron 200 is assembled in the receiving cavity 101 by fixing it to the mounting portion 110, and the U-shaped iron 200 and the magnetic component 210 are spaced apart to form a magnetic annular cavity 201. The first end of the sound-generating component 300 is movably inserted into the magnetic annular cavity 201, and the second end of the sound-generating component 300 is connected to the second end of the metal bracket 100. In this way, the metal bracket 100 has the characteristics of high strength, good durability and excellent heat dissipation performance, which can avoid breakage during assembly, testing and use, thereby providing stable mechanical support and ensuring assembly accuracy and performance consistency. Meanwhile, the metal bracket 100 has a thinner wall thickness than the plastic bracket, and can provide a larger volume of housing cavity 101 for the same size. It is more suitable for situations where the internal space of the speaker is limited. The air pressure inside the housing cavity 101 is balanced by forming an inwardly recessed air pressure balancing cavity 120, which can avoid the need for openings on the side wall of the metal bracket 100, thereby enabling the structure of the metal bracket 100 to have better mechanical stability.

[0031] In one embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, a cover plate 400 is provided on the first end of the metal bracket 100. The cover plate 400 encloses the air pressure balance chamber 120. A vent hole 410 is provided on the cover plate 400, and the vent hole 410 communicates with the air pressure balance chamber 120. Specifically, the cross-sectional shape of the cover plate 400 is adapted to the cross-sectional shape of the air pressure balance chamber 120 to enclose the air pressure balance chamber 120. The air pressure of the receiving chamber 101 is balanced with the external air pressure through the narrow vent hole 410, which can play a role in isolation and protection. It can effectively prevent dust in the environment from entering the receiving chamber 101 through the air pressure balance chamber 120 and the vent hole 121, thereby avoiding contamination of the speaker 10 of the integrated cavity, ensuring its internal cleanliness, and helping to ensure its normal use and improve its service life.

[0032] In one embodiment, such as Figure 3 As shown, a mesh layer 420 is provided on the cover plate 400, and the mesh layer 420 is aligned with the vent hole 410. Specifically, the mesh layer 420 is a mesh fabric with a mesh structure woven from yarn or fiber, which has the characteristics of high air permeability, corrosion resistance and lightweight. By setting the mesh layer 420, the vent hole 410 is further sealed. While sealing the vent hole 410, the vent hole 410 can also maintain its air leakage performance, which can play a further role in isolation and protection. It can better prevent dust in the environment from entering the receiving cavity 101 through the vent hole 410, the air pressure balance cavity 120 and the vent hole 121, thereby further avoiding contamination of the horn 10 of the integrated cavity and helping to improve its service life.

[0033] In one embodiment, such as Figure 3 , Figure 5 and Figure 6 As shown, the mounting portion 110 has a mounting hole 111, and the U-shaped iron 200 has a connecting portion 220, which fits into the mounting hole 111. Specifically, the mounting hole 111 communicates with the air pressure balance chamber 120. The U-shaped iron 200 is fixed to the mounting portion 110 by fitting into the mounting hole 111 through the connecting portion 220. That is, the U-shaped iron 200 can be riveted to the mounting portion 110 through the connecting portion 220, and can be stably assembled in the receiving cavity 101. Furthermore, by providing a first adhesive layer, the U-shaped iron 200 is further bonded to the mounting portion 110, which can further avoid the risk of falling off and improve the stability of the connection.

[0034] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the sound-generating component 300 includes a voice coil 310, a diaphragm 320, and a surround 330. The first end of the voice coil 310 is movably inserted into the magnetic annular cavity 201. The second end of the voice coil 310 is connected to the first end of the diaphragm 320. The second end of the diaphragm 320 is connected to the first end of the surround 330. The second end of the surround 330 is connected to the second end of the metal bracket 100. Specifically, the voice coil 310 is movably disposed within the receiving cavity 101, and the first end of the voice coil 310 is movably disposed within the magnetic annular cavity 201. The second end of the voice coil 310 is connected to the second end of the metal support 100 through the diaphragm 320 and the folded ring 330. In this way, the magnetic field generated by the voice coil 310 after being energized interacts with the magnetic field generated by the magnet 211, causing the voice coil 310 to move up and down in the magnetic annular cavity 201 under force. Because the audio current changes at any time, that is, by changing the direction or magnitude of the current, the voice coil 310 can move up and down, driving the diaphragm 320 to move, causing the diaphragm 320 to vibrate and resonate with the surrounding air to produce sound.

[0035] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the sound-generating component 300 further includes a spring 340, which is sleeved on the voice coil 310, and the outer edge of the spring 340 is connected to the side wall of the receiving cavity 101. Specifically, the spring 340 has a ring structure, is sleeved on the outer surface of the voice coil 310, and the outer side of the spring 340 is connected to the side wall of the receiving cavity 101. The spring 340 can maintain the correct position of the voice coil 310 in the magnetic gap, so that the voice coil 310 can stably reciprocate along the axial direction when subjected to force.

[0036] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the sound-generating component 300 further includes a dust cap 350, which covers the second end of the voice coil 310. Specifically, the dust cap 350 is provided on the end of the voice coil 310 away from the magnetic component 210. The dust cap 350 is adapted to the end shape of the second end of the voice coil 310 and is used to seal the second end of the voice coil 310. This can protect the voice coil 310, prevent dust in the environment from entering the interior of the voice coil 310, avoid contaminating the speaker 10 of the integrated cavity, ensure its internal cleanliness, and help ensure its normal use and extend its service life.

[0037] In one embodiment, such as Figure 4As shown, the magnetic component 210 includes a magnet 211 and a washer 212. The magnet 211 and the washer 212 are stacked sequentially on the U-shaped iron 200, and the magnet 211 and the washer 212 are located inside the voice coil 310. Specifically, the U-shaped iron 200 is a cup structure with a U-shaped cross-section. The magnet 211 and the washer 212 are disposed inside the U-shaped iron 200. A magnetic annular cavity 201 is formed between the inner sidewall of the U-shaped iron 200 and the outer surface of the magnet 211 and the washer 212. The width of the magnet 211 and the width of the washer 212 are both smaller than the width of the voice coil 310. That is, when the voice coil 310 is subjected to force and moves towards the magnet 211 and the washer 212, the magnet 211 and the washer 212 can be located inside the first end of the voice coil 310, which can avoid the voice coil 310 and the magnet 211 and the washer 212 from colliding, thereby generating a good magnetic field and realizing the sound production function.

[0038] In one embodiment, such as Figure 2 and Figure 3 As shown, the metal bracket 100 is provided with a first terminal 510 and a second terminal 520 spaced apart. The first terminal 510 is electrically connected to the first end of the voice coil 310, and the second terminal 520 is electrically connected to the second end of the voice coil 310. Specifically, by providing the first terminal 510 and the second terminal 520 spaced apart on both the left and right ends of the metal bracket 100, and electrically connecting them to the voice coil wire on the voice coil 310 via nylon wire, power can be supplied to the voice coil 310. In this way, the voice coil 310 can generate a magnetic field that interacts with the magnetic field of the magnetic component 210, thereby allowing the voice coil 310 to move up and down, driving the diaphragm 320 to move, ensuring the normal operation of the speaker 10 of the integrated cavity.

[0039] In one embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the metal bracket 100 is provided with a fixing part 130, and the fixing part 130 has a fixing through hole 131. Specifically, the number of fixing parts 130 is set to two or more, and each fixing part 130 is evenly distributed on the second end of the metal bracket 100. By providing fixing parts 130 and fixing through holes 131 extending on the second end of the metal bracket 100, it is convenient to assemble and fix the speaker 10 of the integrated cavity.

[0040] Compared with the prior art, the present invention has at least the following advantages:

[0041] This utility model provides an integrated cavity speaker. A mounting portion is protruding from the side wall of the receiving cavity of a metal bracket, and a pressure balancing cavity is formed at the first end of the metal bracket. The receiving cavity is connected to the pressure balancing cavity through a vent hole. A U-shaped iron is mounted on the mounting portion and forms a magnetic annular cavity with a magnetic component at intervals. The first end of the sound-emitting component is movably inserted into the magnetic annular cavity, and the second end of the sound-emitting component is connected to the second end of the metal bracket. This design gives the metal bracket high strength, good durability, and excellent heat dissipation, preventing breakage during assembly, testing, and use. It provides stable mechanical support, ensuring assembly accuracy and performance consistency. Furthermore, the metal bracket has a thinner wall thickness than a plastic bracket of the same size, allowing for a larger receiving cavity while maintaining strength. The pressure balancing cavity formed by the inward indentation balances the internal air pressure, resulting in better mechanical stability of the metal bracket structure.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A speaker with an integrated cavity, characterized in that, include: A metal bracket has a receiving cavity, a mounting part is provided on the side wall of the receiving cavity, and a pressure balance cavity is formed on the first end of the metal bracket. A vent hole is provided on the side wall of the pressure balance cavity and the vent hole communicates with the receiving cavity. U-shaped iron, wherein the U-shaped iron is disposed on the mounting part, and a magnetic component is disposed on the U-shaped iron, wherein a magnetic annular cavity is formed between the magnetic component and the U-shaped iron at a distance; A sound-generating component is disposed within the receiving cavity, with its first end movably inserted into the magnetic annular cavity and its second end connected to the second end of the metal bracket.

2. The speaker with the integrated cavity according to claim 1, characterized in that, A cover plate is provided on the first end of the metal bracket, the cover plate encloses the air pressure balance chamber, and an air vent is provided on the cover plate, which is connected to the air pressure balance chamber.

3. The speaker with the integrated cavity according to claim 2, characterized in that, The cover plate is provided with a mesh layer, which is aligned with the vent hole.

4. The speaker with the integrated cavity according to claim 1, characterized in that, The mounting part has a mounting hole, and the U-shaped iron is provided with a connecting part, which is fitted into the mounting hole.

5. The speaker with the integrated cavity according to claim 1, characterized in that, The sound-generating component includes a voice coil, a diaphragm, and a surround. The first end of the voice coil is movably inserted into the magnetic annular cavity. The second end of the voice coil is connected to the first end of the diaphragm. The second end of the diaphragm is connected to the first end of the surround. The second end of the surround is connected to the second end of the metal bracket.

6. The speaker with the integrated cavity according to claim 5, characterized in that, The sound-generating component further includes a spring, which is sleeved on the voice coil, and the outer edge of the spring is connected to the side wall of the receiving cavity.

7. The speaker with the integrated cavity according to claim 6, characterized in that, The sound-generating component also includes a dust cap, which covers the second end of the voice coil.

8. The speaker with the integrated cavity according to claim 7, characterized in that, The magnetic component includes a magnet and a washer, which are stacked sequentially on the U-shaped iron and located within the voice coil.

9. The speaker with the integrated cavity according to claim 7, characterized in that, The metal bracket is provided with a first terminal and a second terminal at intervals. The first terminal is electrically connected to the first end of the voice coil, and the second terminal is electrically connected to the second end of the voice coil.

10. The speaker with the integrated cavity according to claim 1, characterized in that, The metal bracket is provided with a fixing part, and the fixing part is provided with a fixing through hole.

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