Double-moving-coil loudspeaker

Abstract

The utility model discloses a double-moving-coil loudspeaker, which comprises a frame, a cone is arranged in the frame, a voice coil assembly is arranged in the frame, the voice coil assembly comprises a large voice coil and a small voice coil, the large voice coil and the small voice coil are respectively provided with a low-pitch and medium-pitch large vibrating diaphragm and a high-pitch small vibrating diaphragm, a washer, a magnet and a T iron are arranged at the rear part of the frame, and the T iron is arranged in the frame. The rear portion of the T iron is covered with a heat dissipation structure, the heat dissipation structure is arranged towards the rear portion of the basin stand, and the basin stand is provided with a detachable protective cover. According to the utility model, the temperature of the voice coil is kept stable, so that the problems of sound distortion and the like caused by overheating are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a double dynamic coil loudspeaker. Background Art

[0002] With the development of the times and the continuous improvement of people's living standards, people have higher and higher requirements for products in all aspects, and their requirements for sound quality are also getting higher and higher.

[0003] Traditional single-dynamic speakers lack uniform response across the entire audio frequency range. For example, in the low-frequency range, a single dynamic speaker may struggle to produce sufficiently strong bass, resulting in insufficient bass depth. In the high-frequency range, due to the physical characteristics of the diaphragm and the limitations of the driving method, the high-frequency extension and detail may be unsatisfactory, and the high-frequency audio signal cannot be accurately reproduced. Dual dynamic speakers are needed to meet the needs of both low and high frequencies.

[0004] However, in the use of existing speakers, the voice coil is the driving component of the speaker and is located in a magnetic field. When audio current passes through the voice coil, according to Ampere's law, the voice coil will vibrate due to the force of the magnetic field, thereby driving the speaker cone to vibrate and produce sound.

[0005] Therefore, during use, the voice coil needs to be cooled and dust from the outside needs to be prevented from entering the voice coil, causing damage to the voice coil or affecting the distortion of the voice coil's pronunciation.

[0006] Therefore, it is necessary to provide a dual dynamic loudspeaker for use. Utility Model Content

[0007] The purpose of the present invention is to provide a dual dynamic loudspeaker to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dual dynamic loudspeaker, comprising a basin frame, a paper basin provided in the basin frame, a voice coil assembly provided in the basin frame, the voice coil assembly comprising a large voice coil and a small voice coil, the large voice coil and the small voice coil being provided with a large diaphragm for a low and medium pitch and a small diaphragm for a high pitch, respectively, a washer, a magnet and a T-iron being provided at the rear of the basin frame, a heat dissipation structure being provided at the rear cover of the T-iron, the heat dissipation structure being arranged toward the rear of the basin frame, and a detachable protective cover being provided on the basin frame.

[0009] According to a further technical solution, the heat dissipation structure includes a mounting tube and a heat dissipation fan, wherein the mounting tube cover is arranged outside the basin frame, and the heat dissipation fan is arranged inside the mounting tube.

[0010] According to a further technical solution, the outer sides of the large voice coil and the small voice coil are respectively surrounded by a large heat dissipation fin ring and a small heat dissipation fin ring.

[0011] According to a further technical solution, the large heat dissipation fin ring and the small heat dissipation fin ring are made of aluminum.

[0012] A further technical solution is that a mesh dustproof structure is provided in the middle of the protective cover, a mounting ring is provided inside the protective cover, a mounting ring is provided on the basin frame, and the protective cover can rotate on the mounting ring.

[0013] According to a further technical solution, two mounting blocks are provided on the mounting ring, a vertically arranged plug-in slot is provided on the mounting ring, an arc-shaped slot is provided at the bottom of the plug-in slot and is connected thereto, and the mounting block can move in the plug-in slot and the arc-shaped slot.

[0014] Beneficial effects of the utility model:

[0015] First, the utility model is provided with a mesh dustproof structure during use, which can prevent dust from entering the basin frame, and the protective cover can prevent dust, fluff and other tiny particles from adhering to the diaphragm. The mesh dustproof structure needs to be cleaned after a period of use. At this time, the protective cover can be rotated to make the mounting ring rotate on the mounting ring. During the rotation of the mounting ring, the mounting block will be rotated out of the arc groove to the plug-in groove. After that, the protective cover can be pulled out and removed from the basin frame for cleaning or cleaning, so that the dust can be intercepted and blocked during the subsequent use of the speaker. The protective cover is also very convenient to install. The mounting block is plugged in from the plug-in groove, and then the protective cover is rotated to make the mounting block rotate in the arc groove, so that the protective cover is clamped on the basin frame, which is convenient to use.

[0016] Secondly, during the use of the present invention, the large heat dissipation fin ring and the small heat dissipation fin ring can respectively dissipate heat for the large voice coil and the small voice coil, preventing the heat generated during the use of the speaker from affecting the use effect of the speaker, which is conducive to maintaining the temperature of the voice coil stable, thereby reducing problems such as sound distortion caused by overheating.

[0017] Thirdly, the present invention combines the uniform magnetic field required for the movement of T-iron, large voice coil and small voice coil at the same time, which is more practical. The large diaphragm for low and medium pitch combined with the large voice coil is responsible for low and medium pitch, which can produce excellent bass, and the small diaphragm for high pitch combined with the small voice coil is responsible for high pitch, which can produce excellent treble, thereby improving the sound effect of the speaker. The two work together to produce excellent bass and treble at the same time, making the sound quality of the speaker more perfect.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : The three-dimensional structure of the utility model is shown Figure 1 .

[0020] Figure 2 : The three-dimensional structure of the utility model is shown Figure 2 .

[0021] Figure 3 : A partial three-dimensional structure split diagram of the utility model.

[0022] Figure 4 : A schematic diagram of the three-dimensional structure of the protective cover of the present invention.

[0023] Figure 5 : A schematic diagram of the three-dimensional structure of a basin stand of the present invention.

[0024] Figure 6 :for Figure 5 Enlarged view of point A in the middle.

[0025] Figure 7 : A schematic diagram of the three-dimensional structure of the installation tube and the heat dissipation fan of the utility model.

[0026] Figure 8 : A three-dimensional structural breakdown diagram of the voice coil assembly of the present invention.

[0027] Figure numerals: basin frame 1, paper cone 2, voice coil assembly 3, washer 4, magnet 5, T iron 6, large voice coil 7, small voice coil 8, large diaphragm for bass and midrange 9, small diaphragm for tweeter 10, protective cover 11, mounting tube 12, heat dissipation fan 13, large heat dissipation fin ring 14, small heat dissipation fin ring 15, mounting ring 16, mounting ring 17, mounting block 18, plug-in slot 19, arc slot 20. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] Please refer to Figure 1-8 As shown; the utility model provides a technical solution for a dual dynamic loudspeaker: a dual dynamic loudspeaker, comprising a basin frame 1, wherein a paper cone 2 is provided in the basin frame 1, and a voice coil assembly 3 is provided in the basin frame 1, wherein the voice coil assembly 3 comprises a large voice coil 7 and a small voice coil 8, wherein the large voice coil 7 and the small voice coil 8 are respectively provided with a large diaphragm 9 for the low and medium pitch and a small diaphragm 10 for the high pitch, a washer 4, a magnet 5 and a T-iron 6 are provided at the rear of the basin frame 1, and a rear cover of the T-iron 6 is provided with a heat dissipation structure, and the heat dissipation structure is arranged toward the rear of the basin frame 1, and a detachable protective cover 11 is provided on the basin frame 1.

[0030] The present invention is more practical by combining T iron 6 to improve the uniform magnetic field required for the movement of large voice coil 7 and small voice coil 8. The large diaphragm 9 for bass and midrange combined with the large voice coil 7 is responsible for bass and midrange, so as to produce excellent bass. The small diaphragm 10 for treble combined with the small voice coil 8 is responsible for treble, so as to produce excellent treble, thereby improving the sound effect of the speaker. The two can work together to produce excellent bass and treble at the same time, making the sound quality of the speaker more perfect.

[0031] In this embodiment, referring to Figure 7 As shown, the heat dissipation structure includes a mounting tube 12 and a heat dissipation fan 13. The mounting tube 12 is mounted outside the basin frame 1, and the heat dissipation fan 13 is disposed inside the mounting tube 12. When the heat dissipation fan 13 is in use, it blows air outward into the mounting tube 12 to dissipate heat from the voice coil assembly 3, washer 4, magnet 5, and T-iron 6 at the rear of the basin frame 1, thereby improving the heat dissipation effect of the speaker.

[0032] In this embodiment, as shown in FIG8 , the large voice coil 7 and the small voice coil 8 are surrounded by a large heat dissipation fin ring 14 and a small heat dissipation fin ring 15, respectively. During use, the large heat dissipation fin ring 14 and the small heat dissipation fin ring 15 can dissipate heat from the large voice coil 7 and the small voice coil 8, respectively, preventing heat generation during use that could affect the speaker's performance.

[0033] In this embodiment, the large fin ring 14 and the small fin ring 15 are made of aluminum. Aluminum has a relatively low density and is lightweight. Aluminum also has excellent processability and can be manufactured into various shapes through various processing methods, such as extrusion and die-casting, at a relatively low cost.

[0034] In this embodiment, a mesh dustproof structure is provided in the middle of the protective cover 11 , a mounting ring 16 is provided inside the protective cover 11 , and a mounting ring 17 is provided on the basin frame 1 , and the protective cover 11 can rotate on the mounting ring 17 .

[0035] The mesh dustproof structure prevents dust from entering the basin frame 1 during use, and the protective cover 11 prevents tiny particles such as dust and lint from adhering to the diaphragm. Once these tiny particles land on the diaphragm, when the diaphragm vibrates, they may change the diaphragm's vibration mode, causing the diaphragm to not vibrate accurately as designed, thereby causing sound distortion. For example, in a speaker that has not been cleaned for a long time and does not have the protective cover 11, dust accumulation on the diaphragm may make the high-frequency sound become unclear;

[0036] The protective cover 11 can also prevent larger particles such as sand from causing physical damage to the diaphragm. In some harsh environments, such as near outdoor construction sites or in dusty areas, without the protective cover 11, the diaphragm can easily be scratched or punctured by these foreign objects, thus affecting the normal use of the speaker.

[0037] In this embodiment, referring to Figure 4 As shown, two mounting blocks 18 are provided on the mounting ring 16, and a vertically arranged plug-in groove 19 is provided on the mounting ring 17. The bottom of the plug-in groove 19 is provided with an arc groove 20 connected thereto, and the mounting block 18 can move in the plug-in groove 19 and the arc groove 20.

[0038] After a period of use, the mesh dustproof structure needs to be cleaned. At this time, the protective cover 11 can be rotated to make the mounting ring 16 rotate on the mounting ring 17. During the rotation of the mounting ring 16, the mounting block 18 will be rotated out of the arc groove 20 to the plug-in groove 19. Then, the protective cover 11 can be pulled out and the protective cover 11 can be removed from the basin frame 1 for cleaning or cleaning, so that the dust can be intercepted and blocked during the subsequent use of the speaker. It is also very convenient to install the protective cover 11. The mounting block 18 is plugged inward from the plug-in groove 19, and then the protective cover 11 is rotated to make the mounting block 18 rotate in the arc groove 20, so that the protective cover 11 is clamped on the basin frame 1, which is convenient to use.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual dynamic loudspeaker, characterized by: It comprises a basin frame (1), wherein a paper basin (2) is arranged in the basin frame (1), and a voice coil assembly (3) is arranged in the basin frame (1); The voice coil assembly (3) includes a large voice coil (7) and a small voice coil (8), and the large voice coil (7) and the small voice coil (8) are respectively provided with a low-midrange large diaphragm (9) and a high-pitched small diaphragm (10); The rear portion of the basin frame (1) is provided with a washer (4), a magnet (5) and a T-iron (6); The rear cover of the T-iron (6) is provided with a heat dissipation structure, and the heat dissipation structure is arranged toward the rear of the basin frame (1). A detachable protective cover (11) is provided on the basin frame (1).

2. The dual dynamic loudspeaker according to claim 1, characterized in that: The heat dissipation structure comprises a mounting tube (12) and a heat dissipation fan (13); the mounting tube (12) is covered outside the basin frame (1), and the heat dissipation fan (13) is arranged inside the mounting tube (12).

3. The dual dynamic loudspeaker according to claim 1, characterized in that: The outer sides of the large voice coil (7) and the small voice coil (8) are respectively surrounded by a large heat dissipation fin ring (14) and a small heat dissipation fin ring (15).

4. The dual dynamic loudspeaker according to claim 3, characterized in that: The large heat dissipation fin ring (14) and the small heat dissipation fin ring (15) are made of aluminum material.

5. The dual dynamic loudspeaker according to claim 1, characterized in that: A mesh dustproof structure is provided in the middle of the protective cover (11), a mounting ring (16) is provided inside the protective cover (11), a mounting ring (17) is provided on the basin frame (1), and the protective cover (11) can rotate on the mounting ring (17).

6. The dual dynamic loudspeaker according to claim 5, characterized in that: The mounting ring (16) is provided with two mounting blocks (18), the mounting ring (17) is provided with a vertically arranged plug-in slot (19), the bottom of the plug-in slot (19) is provided with an arc-shaped slot (20) connected thereto, and the mounting block (18) can move in the plug-in slot (19) and the arc-shaped slot (20).

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