High and low frequency coaxial bass-guided super tweeter flat diaphragm dual-unit loudspeaker

Abstract

This utility model relates to the field of coaxial high and low frequency loudspeakers, particularly a coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker, comprising a U-shaped cup, a low-frequency sound-generating component, and a high-frequency sound-generating component. The U-shaped cup protrudes upwards in the middle. The low-frequency sound-generating component is located outside the U-shaped cup, and the high-frequency sound-generating component is located inside the U-shaped cup. A sound guide tube is installed on the top surface of the inner wall of the U-shaped cup. The advantages of this utility model are: by setting up a U-shaped cup, a low-frequency sound-generating component, and a high-frequency sound-generating component, with the low-frequency sound-generating component located outside the U-shaped cup and the high-frequency sound-generating component located inside the U-shaped cup, the low-frequency sound-generating component and the high-frequency sound-generating component are isolated from each other, forming two independent sound-generating units. This satisfies the purpose of adjusting the high-frequency and low-frequency sounds separately. Furthermore, the coaxial design of the low-frequency and high-frequency sound-generating components results in a more compact appearance, effectively reducing the overall size and meeting the installation requirements in small spaces.

Description

Technical Field

[0001] This utility model relates to the field of coaxial high and low frequency loudspeakers, and in particular to a coaxial high and low frequency bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker. Background Technology

[0002] The loudspeaker (also known as a speaker driver) is the core sound-generating unit of a loudspeaker system, responsible for converting electrical signals into sound energy. Its structure, materials, and working principle directly affect sound quality. Conventional single-driver loudspeakers are usually full-range loudspeakers, meaning that a single driver can handle high, mid, and low frequencies. This makes it inconvenient to adjust low and high frequencies separately. For applications requiring diverse low and high frequency effects, separate low-frequency and high-frequency loudspeakers are needed, resulting in a larger overall size. Based on this, the coaxial bass-guided ultra-high frequency flat-diaphragm dual-unit loudspeaker with both high and low frequencies is proposed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker, which effectively solves the deficiencies of the prior art.

[0004] To achieve the above objectives, one embodiment of the present invention provides a coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker, including a U-shaped cup, a low-frequency sound-generating component, and a high-frequency sound-generating component. The U-shaped cup protrudes upward in the middle, the low-frequency sound-generating component is located outside the U-shaped cup, the high-frequency sound-generating component is located inside the U-shaped cup, and a sound guide tube is installed on the top surface of the inner wall of the U-shaped cup, with its top protruding beyond the top surface of the low-frequency sound-generating component. The low-frequency sound-generating component includes a support frame, a first magnet, a first coil, and a first diaphragm. The bottom end of the support frame is sleeved with the edge of the bottom end of the U-shaped cup. The first magnet is installed on the inner wall of the support frame. The edge of the first diaphragm is fixedly connected to the top surface of the support frame. The first coil is located in the middle of the first magnet, and its top end is fixedly connected to the bottom surface of the first diaphragm. The high-frequency sound-generating component includes a bottom shell support, a second magnet, a second coil, a second diaphragm, and an upper cover. The bottom shell support is installed on the inner wall of the U-shaped cup, the second magnet is installed inside the bottom shell support, the second diaphragm is installed on the inner wall of the bottom shell support, the second coil is installed on the bottom surface of the second diaphragm, and the upper cover is located on the top of the second diaphragm, with its edge bent downwards and abutting against the edge of the second diaphragm.

[0005] Preferably, one side of the outer surface of the U-shaped cup protrudes outward, and two soldering contact points are installed at the protruding position. A frequency divider is installed on the outer wall of the two soldering contact points. The frequency divider is electrically connected to the first coil and the second coil respectively through wires. In this scheme, the frequency divider is an electronic circuit or digital logic device, which mainly generates a stable and low-frequency clock signal or synchronization signal. At the same time, it is electrically connected to the first coil and the second coil through soldering, so that the current passes through the first coil and the second coil respectively and generates an alternating magnetic field, which interacts with the first magnet and the second magnet to realize the separate generation of high-frequency and low-frequency sounds, which facilitates the separate control of high-frequency and low-frequency sounds.

[0006] Preferably, as described in any of the above schemes, arc-shaped grooves are provided on both sides of the bottom surface of the U-shaped cup, and a first mesh cloth is installed on the bottom surface of the U-shaped cup near the arc-shaped grooves. By using this scheme, the air between the U-shaped cup and the support frame can be connected to the outside air through the arc-shaped grooves. The first mesh cloth can effectively block dust, debris and other foreign objects from entering the internal space, thus avoiding contamination or damage to key components such as the first coil.

[0007] Preferably, the U-shaped cup, the second magnet, and the bottom shell bracket have notches on the sides near the frequency divider. This design facilitates the provision of an installation channel for the connection between the second coil and the frequency divider, and allows the air inside the bottom shell bracket to communicate with the outside air.

[0008] Preferably, in any of the above embodiments, the top end of the sound guide tube passes through the middle of the first diaphragm and is fixedly connected to the middle of the first diaphragm. This embodiment facilitates the output of high-frequency sounds to the outside through the sound guide tube, while the sound guide tube provides stable support for the middle of the first diaphragm, enabling it to vibrate under the action of the first coil and emit low-frequency sounds to the outside.

[0009] Preferably, the top surface of the upper cover near the sound guide tube has a through hole, and a second mesh is installed on the top surface of the upper cover near the through hole. This design facilitates the emission of high-frequency sounds to the outside, and the second mesh helps to seal the through hole, preventing external dust, debris, etc. from entering the interior of the upper cover and avoiding contamination or damage to key components such as the second coil and the second diaphragm.

[0010] This utility model has the following advantages: 1. This coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker features a U-shaped cup, a low-frequency sound-generating component, and a high-frequency sound-generating component. The low-frequency sound-generating component is located outside the U-shaped cup, while the high-frequency sound-generating component is located inside the U-shaped cup. This isolates the low-frequency and high-frequency sound-generating components from each other, forming two independent sound-generating units. This allows for separate adjustment of high and low frequencies. Furthermore, the coaxial design of the low-frequency and high-frequency sound-generating components results in a more compact appearance, effectively reducing the overall size and meeting the installation requirements of small spaces.

[0011] 2. This coaxial bass-guided super tweeter flat diaphragm dual-unit loudspeaker features a U-shaped cup, a second magnet, and a bottom shell bracket. All three components have notches on their sides near the crossover, thus providing an installation channel for connecting the second coil to the crossover. This also allows the air inside the bottom shell bracket to communicate with the outside air, facilitating the second coil to emit sound waves to the outside through the sound tube. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembly structure of this utility model; Figure 2 This is a cross-sectional view of the assembly of this utility model; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a partial cross-sectional view of the U-shaped cup of this utility model; Figure 5 This is a schematic diagram of the support frame structure of this utility model; Figure 6 This is a schematic diagram of the sound guide tube structure of this utility model.

[0013] In the diagram: 1-U-shaped cup, 2-support frame, 3-sound guide tube, 4-first diaphragm, 5-crossover, 6-first magnet, 7-second diaphragm, 8-second mesh, 9-bottom shell support, 10-second coil, 11-first coil, 12-upper cover, 13-second magnet, 14-first mesh, 20-low frequency sound generation component, 30-high frequency sound generation component. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0015] like Figures 1 to 6As shown, the coaxial bass-guided super tweeter flat diaphragm dual-unit loudspeaker includes a U-shaped cup 1, a low-frequency sound-generating component 20, and a high-frequency sound-generating component 30. The middle of the U-shaped cup 1 protrudes upward. The low-frequency sound-generating component 20 is located outside the U-shaped cup 1, and the high-frequency sound-generating component 30 is located inside the U-shaped cup 1. A sound guide tube 3 is installed on the top surface of the inner wall of the U-shaped cup 1, and its top protrudes from the top surface of the low-frequency sound-generating component 20. The low-frequency sound-generating component 20 includes a support frame 2, a first magnet 6, a first coil 11, and a first diaphragm 4. The bottom end of the support frame 2 is fitted with the edge of the bottom end of the U-shaped cup 1. The first magnet 6 is installed on the inner wall of the support frame 2. The edge of the first diaphragm 4 is fixedly connected to the top surface of the support frame 2. The first coil 11 is located in the middle of the first magnet 6, and its top end is fixedly connected to the bottom surface of the first diaphragm 4. The support frame 2 has a stepped shape at the top edge, and a pre-reserved mounting groove for the wiring of the first coil 11 is located near the crossover 5. At the same time, two mounting slots are opened at the protruding position of the support frame 2 near the crossover 5, so that the two wires of the first coil 11 can be placed inside the mounting groove and welded to the crossover 5 through the mounting slot. The second diaphragm is installed inside the two mounting slots, and the two wires of the first coil 11 pass through the middle of the third diaphragm. The stepped structure of the top edge of the support frame 2 facilitates the positioning of the first diaphragm 4 and makes it convenient for operators to assemble the parts.

[0016] The high-frequency sound-generating component 30 includes a bottom shell support 9, a second magnet 13, a second coil 10, a second diaphragm 7, and an upper cover 12. The bottom shell support 9 is installed on the inner wall of the U-shaped cup 1, the second magnet 13 is installed inside the bottom shell support 9, the second diaphragm 7 is installed on the inner wall of the bottom shell support 9, the second coil 10 is installed on the bottom surface of the second diaphragm 7, and the upper cover 12 is located on the top of the second diaphragm 7, with its edge bent downward and abutting against the edge of the second diaphragm 7.

[0017] One side of the outer circular surface of the U-shaped cup 1 protrudes outward, and two soldering contact points are installed at the protruding position. A frequency divider 5 is installed on the outer wall of the two soldering contact points. The frequency divider 5 is electrically connected to the first coil 11 and the second coil 10 through wires respectively. As an optional technical solution of this utility model, the frequency divider is an electronic circuit or digital logic device that mainly generates a stable and low-frequency clock signal or synchronization signal. At the same time, it is electrically connected to the first coil 11 and the second coil 10 through soldering, so that the current passes through the first coil 11 and the second coil 10 respectively and generates an alternating magnetic field, which interacts with the first magnet 6 and the second magnet 13 to realize the separate generation of high-frequency and low-frequency sounds, which facilitates the separate control of high-frequency and low-frequency sounds.

[0018] Both sides of the bottom surface of the U-shaped cup 1 are provided with arc-shaped grooves. The bottom surface of the U-shaped cup 1 near the arc-shaped grooves is provided with a first mesh cloth 14. As an optional technical solution of this utility model, this facilitates the air between the U-shaped cup 1 and the support frame 2 to be connected with the outside air through the arc-shaped grooves. The first mesh cloth 14 is convenient to block dust, debris and other foreign objects from entering the internal space, so as to avoid contamination or damage to key components such as the first coil 11.

[0019] The U-shaped cup 1, the second magnet 13, and the bottom shell bracket 9 all have notches on their sides near the frequency divider 5. As an optional technical solution of this utility model, this facilitates the provision of an installation channel for the connection between the second coil 10 and the frequency divider 5, and allows the air inside the bottom shell bracket 9 to be connected with the outside air.

[0020] The top end of the sound guide tube 3 passes through the middle of the first diaphragm 4 and is fixedly connected to the middle of the first diaphragm 4. As an optional technical solution of this utility model, it is convenient to export high-frequency sounds to the outside through the sound guide tube 3, while the sound guide tube can provide stable support for the middle of the first diaphragm 4, so that it can vibrate under the driving action of the first coil 11 and emit low-frequency sounds to the outside.

[0021] The top surface of the upper cover 12 near the sound guide tube 3 has a through hole, and a second mesh 8 is installed on the top surface of the upper cover 12 near the through hole. As an optional technical solution of this utility model, this facilitates the emission of high-frequency sound to the outside. The second mesh 8 facilitates the sealing of the through hole, preventing external dust, debris, etc. from entering the interior of the upper cover 12, and avoiding contamination or damage to key components such as the second coil 10 and the second diaphragm 7.

[0022] This coaxial bass-guided flat-diaphragm dual-unit loudspeaker requires the following steps to use: 1) During installation, the first magnet 6 is installed inside the support frame 2, and the first coil 11 is installed inside the first diaphragm 4; 2) Weld the two ends of the first coil 11 to the frequency divider 5, and install the first diaphragm 4 and the first coil 11 together on the top surface of the support frame 2. The first coil 11 is inserted between the first magnet 6 and the U-shaped cup 1. 3) Install two first diaphragms 4 and cover the arc-shaped grooves on both sides of the bottom surface of the U-shaped cup 1; 4) Install the second magnet 13 inside the bottom shell bracket 9, and fix the second coil 10 to the second diaphragm 7; 5) Install the upper cover 12 and the second diaphragm 7 inside the bottom shell bracket 9, electrically connect the second coil 10 to the frequency divider 5, and finally install the bottom shell bracket 9 inside the U-shaped cup 1.

[0023] In summary, when in use, the user sets up a U-shaped cup 1, a low-frequency sound-generating component 20, and a high-frequency sound-generating component 30. The low-frequency sound-generating component 20 is located outside the U-shaped cup 1, and the high-frequency sound-generating component 30 is located inside the U-shaped cup 1. This isolates the low-frequency sound-generating component 20 and the high-frequency sound-generating component 30 from each other, forming two independent sound-generating units. This allows for the separate adjustment of high-frequency and low-frequency sounds. Furthermore, the coaxial design of the low-frequency sound-generating component 20 and the high-frequency sound-generating component 30 makes the appearance more compact, effectively reducing the overall size and meeting the installation requirements in small spaces. By setting up the U-shaped cup 1, the second magnet 13, and the bottom shell bracket 9, all three have notches on the side near the crossover 5, thus reserving an installation channel for the connection between the second coil 10 and the crossover 5. This also allows the air inside the bottom shell bracket 9 to be connected to the outside air, facilitating the second coil 10 to emit sound waves to the outside through the sound guide tube 3.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-unit loudspeaker with a coaxial high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm, characterized in that: It includes a U-shaped cup (1), a low-frequency sound-generating component (20) and a high-frequency sound-generating component (30). The U-shaped cup (1) protrudes upward in the middle. The low-frequency sound-generating component (20) is located outside the U-shaped cup (1). The high-frequency sound-generating component (30) is located inside the U-shaped cup (1). A sound guide tube (3) is installed on the top surface of the inner wall of the U-shaped cup (1), and its top protrudes from the top surface of the low-frequency sound-generating component (20). The low-frequency sound-generating component (20) includes a support frame (2), a first magnet (6), a first coil (11), and a first diaphragm (4). The bottom end of the support frame (2) is fitted with the edge of the bottom end of the U-shaped cup (1). The first magnet (6) is installed on the inner wall of the support frame (2). The edge of the first diaphragm (4) is fixedly connected to the top surface of the support frame (2). The first coil (11) is located in the middle of the first magnet (6), and its top end is fixedly connected to the bottom surface of the first diaphragm (4). The high-frequency sound-generating component (30) includes a bottom shell support (9), a second magnet (13), a second coil (10), a second diaphragm (7), and an upper cover (12). The bottom shell support (9) is installed on the inner wall of the U-shaped cup (1). The second magnet (13) is installed inside the bottom shell support (9). The second diaphragm (7) is installed on the inner wall of the bottom shell support (9). The second coil (10) is installed on the bottom surface of the second diaphragm (7). The upper cover (12) is located on the top of the second diaphragm (7), and its edge is bent downward and abuts against the edge of the second diaphragm (7).

2. The high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker according to claim 1, characterized in that: One side of the outer circular surface of the U-shaped cup (1) protrudes outward, and two welding contact points are installed at the protruding position. A frequency divider (5) is installed on the outer wall of the two welding contact points. The frequency divider (5) is electrically connected to the first coil (11) and the second coil (10) respectively through wires.

3. The high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker according to claim 2, characterized in that: Both sides of the bottom surface of the U-shaped cup (1) are provided with arc grooves, and the bottom surface of the U-shaped cup (1) near the arc grooves is provided with a first mesh cloth (14).

4. The high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker according to claim 3, characterized in that: The U-shaped cup (1), the second magnet (13), and the bottom shell support (9) all have notches on the side near the frequency divider (5).

5. The high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker according to claim 4, characterized in that: The top end of the sound guide tube (3) passes through the middle of the first diaphragm (4) and is fixedly connected to the middle of the first diaphragm (4).

6. The high and low frequency coaxial bass-guided ultra-high frequency flat diaphragm dual-unit loudspeaker according to claim 5, characterized in that: The upper cover (12) has a through hole on the top surface near the sound guide tube (3), and a second mesh (8) is installed on the top surface of the upper cover (12) near the through hole.

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