Ultrathin loudspeaker

Abstract

The utility model provides an ultrathin loudspeaker, which comprises a disc frame and drum paper covered above the disc frame, the drum paper is a V-shaped opening, a bulge is arranged in the middle of the V-shaped opening, a magnetic circuit assembly is arranged in a space formed by covering the disc frame and the drum paper, and the upper half part of the magnetic circuit assembly is wrapped in the bulge. The beneficial effects of the utility model are that the projection structure is arranged in the middle of the V-shaped drum paper, the magnetic circuit assembly is arranged in the space formed by covering the disc rack and the drum paper, and the upper half part of the magnetic circuit assembly is wrapped in the projection, so that the loudspeaker structure is thinner, the front cavity effect of the loudspeaker can be effectively reduced, and the sound quality of the loudspeaker is improved. And a better low-frequency effect is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to an ultra-thin bass loudspeaker. Background Art

[0002] At present, as people's requirements for TV sound quality are getting higher and higher, the limitations of the TV's own structure make it difficult for the TV product's sound quality in the low-frequency part to meet the requirements of consumers. Figure 1 The figure shows the structure of a traditional speaker, including a disc frame, a magnetic circuit assembly under the disc frame, a V-shaped drum paper on the disc frame, and a spring inside the disc frame; the traditional speaker structure is very thick and is not suitable for ultra-thin scenarios.

[0003] At present, in order to improve the sound quality of TV, most people use external soundbars as a supplement. In order to solve the bass problem, manufacturers mostly use larger and taller cabinets, which makes it inconvenient for consumers to use.

[0004] Therefore, it is necessary to improve the existing speaker structure so as to reduce the thickness of the speaker while ensuring the low-frequency effect of the speaker. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an ultra-thin loudspeaker capable of taking into account bass effect.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an ultra-thin speaker, the ultra-thin speaker includes a disc frame, a drum paper covering the top of the disc frame, the drum paper is a V-shaped opening, a protrusion is provided in the middle of the V-shaped opening, a magnetic circuit assembly is provided in the space formed by the disc frame and the drum paper covering each other, and the upper half of the magnetic circuit assembly is wrapped inside the protrusion.

[0007] Furthermore, the bottom of the magnetic circuit assembly is flush with the bottom of the disk rack.

[0008] Furthermore, the protrusion is in an arc shape.

[0009] Furthermore, an opening is provided at the top of the protrusion in the middle of the drum paper, and a dust cover is provided on the opening.

[0010] Furthermore, an elastic folding ring is provided at the edge of the drum paper.

[0011] Furthermore, a circle of pressed edge is provided on the edge of the elastic folding ring.

[0012] Furthermore, a plurality of mounting holes are provided on the pressing edge.

[0013] Furthermore, a voice coil is arranged in the space formed by the disc frame and the drum paper cover, and the voice coil is sleeved on the magnetic circuit assembly.

[0014] Furthermore, a spring wave is arranged in the space formed by the disc frame and the drum paper cover, and the spring wave surrounds the voice coil.

[0015] Furthermore, the magnetic circuit assembly includes a magnetic conductive plate and a magnetic conductive column, the magnetic conductive plate is sleeved on the outer ring of the voice coil, and the magnetic conductive column is sleeved on the inner ring of the voice coil.

[0016] The beneficial effect of the utility model is that a protruding structure is arranged in the middle of the V-shaped drum paper, and the magnetic circuit assembly is arranged in the space formed by the disc frame and the drum paper, and the upper part of the magnetic circuit assembly is wrapped inside the protrusion, thereby making the speaker structure thinner and effectively reducing the front cavity effect of the speaker to obtain better low-frequency effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the mechanisms shown in these drawings without paying creative work.

[0018] Figure 1 This is a cross-sectional view of a traditional loudspeaker structure;

[0019] Figure 2 This is a cross-sectional view of the ultra-thin speaker structure of an embodiment of the utility model;

[0020] Figure 3 A top view of an ultra-thin speaker according to an embodiment of the utility model;

[0021] Among them, 10, drum paper; 11, protrusion; 12, elastic folding ring; 13, pressure edge; 14, dust cover; 20, disk rack; 30, magnetic circuit assembly; 31, elastic wave. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] like Figure 2-Figure 3 As shown, an embodiment of the utility model is: an ultra-thin speaker, the ultra-thin speaker includes a disc frame 20, a drum paper 10 covering the disc frame 20, the drum paper 10 is a V-shaped mouth, a protrusion 11 is provided in the middle of the V-shaped mouth, a magnetic circuit component 30 is provided in the space formed by the disc frame 20 and the drum paper 10 covering each other, and the upper half of the magnetic circuit component 30 is wrapped inside the protrusion 11.

[0025] In this embodiment, the drum paper 10 is V-shaped, with the lower half removed, and a protrusion 11 is provided in the middle. The height of the protrusion 11 is substantially the same as the height of the upper end of the V-shaped opening. For example, in one specific embodiment, the height of the protrusion 11 is flush with the height of the upper end of the V-shaped opening; in one specific embodiment, the height of the protrusion 11 is 1mm-2mm higher than the height of the upper end of the V-shaped opening; in one specific embodiment, the height of the protrusion 11 is 1mm-2mm lower than the height of the upper end of the V-shaped opening; the height of the protrusion 11 used in this solution is substantially the same as the height of the upper end of the V-shaped opening, and the interior of the protrusion 11 accommodates the upper half of the magnetic circuit assembly 30. Compared with the traditional speaker structure, this solution design can make the overall structure of the speaker thinner while ensuring the bass effect of the speaker. It can be used in fields with high thickness requirements, such as televisions and monitors; the speaker can be used in the back shell of a TV and an external soundbar to greatly reduce the volume of the product, and the thickness of the product can be reduced to 25mm, while also effectively reducing the front cavity effect of the product.

[0026] In a specific embodiment, the bottom of the magnetic circuit assembly 30 is flush with the bottom of the disk rack 20 .

[0027] In this embodiment, since the magnetic circuit assembly 30 can be accommodated in the protrusion 11 of the drum paper 10, the bottom of the magnetic circuit assembly 30 can be flush with the bottom of the disc frame 20, making the overall structure of the speaker thinner and more compact.

[0028] In a specific embodiment, the protrusion 11 is in an arc shape.

[0029] The top of the protrusion 11 in the middle of the drum paper 10 is provided with an opening, and a dust cover 14 is provided on the opening.

[0030] In this embodiment, there is a small protrusion 11 on the drum paper 10 of the speaker, which is the dust cover 14. Its primary function is to prevent dust, because in addition to the voice coil, other things are allowed to enter the magnetic gap, and the dust cover can well resist foreign objects. Secondly, the dust cover 14 is also a part of the drum paper 10. For example, some speakers will use a large-diameter voice coil and a large-diameter dust cover 14, so it also becomes a part of the drum paper 10. With or without the dust cover 14, the frequency response of the speaker is different.

[0031] In a specific embodiment, an elastic fold ring 12 is disposed on the edge of the drum paper 10 .

[0032] The edge of the elastic fold ring 12 is provided with a circle of pressed edge 13 .

[0033] Wherein, the pressing edge 13 is provided with a plurality of mounting holes.

[0034] A voice coil is arranged in the space formed by the disc frame 20 and the drum paper 10 , and the voice coil is sleeved on the magnetic circuit assembly 30 .

[0035] A damper 31 is disposed in a space formed by the disc frame 20 and the drum paper 10 , and the damper 31 surrounds the voice coil.

[0036] The magnetic circuit assembly 30 includes a magnetic conductive plate and a magnetic conductive column. The magnetic conductive plate is sleeved on the outer ring of the voice coil, and the magnetic conductive column is sleeved on the inner ring of the voice coil.

[0037] In this embodiment, the function of the elastic folding ring 12 is first to provide a certain compliance for the movement of the drum paper 10, that is, to have a certain flexibility so that the drum paper 10 can move back and forth. In addition, the auxiliary elastic wave 31 positions the voice coil so that the voice coil remains in the center of the magnetic gap and provides a restoring force for the movement of the drum paper 10.

[0038] A circle of pressing edge 13 is provided on the edge of the elastic folding ring 12 , and four mounting holes are provided at the four corners of the pressing edge 13 for fixing the speaker.

[0039] The space formed by the disc frame 20 and the drum paper 10 is provided with a magnetic plate and a magnetic column. The magnet will generate a magnetic field. The voice coil of the speaker is placed in the magnetic field. When the voice coil passes the audio current, the current will be affected by the magnetic field. When the changing current flows in, the magnet becomes an electromagnet. The direction of the current keeps changing. The electromagnet keeps moving back and forth due to the force of the current-carrying wire in the magnetic field, driving the paper cone to vibrate back and forth, and the speaker makes sound.

[0040] The influence of effective vibration stroke caused by the design and manufacturing of traditional speakers will cause the height of the speakers to increase continuously, and the assembly space will increase accordingly. When the speakers are to be used in narrow and ultra-thin spaces, the structure of traditional speakers needs to sacrifice bass effects. The drum paper 10 of the present application scheme is V-shaped with its lower half removed, and a protrusion 11 is provided in the middle. The magnetic circuit assembly 30 is arranged inside the protrusion 11, which ensures the bass effect and thins the overall structure of the speaker. The use of a basin frame and a protrusion 11 structure on the drum paper 10 fully utilizes the built-in space of the basin frame to reduce the overall height of the speaker. The upper and lower cutoff frequencies FO and force compliance Cms values ​​of the speaker can be adjusted arbitrarily through the adjustable support elastic wave 31 size. The connecting line uses flat woven silver brocade silk thread to maximize the power handling capacity, so that the speaker can reach high-power handling capacity and obtain an extremely low low-frequency cutoff frequency, making the low-frequency domain effect more obvious. At the same time, it can be made into a full-range speaker, which greatly enhances the versatility of the product.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An ultra-thin speaker, characterized in that: The ultra-thin speaker includes a disc frame and drum paper covering the disc frame, the drum paper is a V-shaped opening, a protrusion is provided in the middle of the V-shaped opening, a magnetic circuit component is provided in the space formed by the disc frame and the drum paper covering each other, and the upper half of the magnetic circuit component is wrapped inside the protrusion.

2. The ultra-thin speaker according to claim 1, characterized in that: The bottom of the magnetic circuit assembly is flush with the bottom of the disk rack.

3. The ultra-thin speaker according to claim 1, characterized in that: The protrusion is in an arc shape.

4. The ultra-thin speaker according to claim 3, characterized in that: The top of the protrusion in the middle of the drum paper is provided with an opening, and a dust cover is provided on the opening.

5. The ultra-thin speaker according to claim 1, characterized in that: The edge of the drum paper is provided with a circle of elastic folding ring.

6. The ultra-thin speaker according to claim 5, characterized in that: The edge of the elastic folding ring is provided with a circle of pressing edge.

7. The ultra-thin speaker according to claim 6, characterized in that: A plurality of mounting holes are arranged on the pressing edge.

8. The ultra-thin speaker according to claim 1, characterized in that: A voice coil is arranged in a space formed by the disc frame and the drum paper cover, and the voice coil is sleeved on the magnetic circuit component.

9. The ultra-thin speaker according to claim 8, characterized in that: A spring wave is arranged in a space formed by the disc frame and the drum paper, and the spring wave surrounds the voice coil.

10. The ultra-thin speaker according to claim 9, characterized in that: The magnetic circuit assembly comprises a magnetic conductive plate and a magnetic conductive column. The magnetic conductive plate is sleeved on the outer ring of the voice coil, and the magnetic conductive column is sleeved on the inner ring of the voice coil.

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