CN214675662U

CN214675662U - Ultra-thin loudspeaker

Info

Publication number: CN214675662U
Application number: CN202120417981.5U
Authority: CN
Inventors: 牛永耀
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-09
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to an ultra-thin loudspeaker, including the basin frame, locate magnetic circuit and the vibration system on the basin frame, the vibration system includes vibrating diaphragm, bullet ripples and voice coil loudspeaker voice coil, the interior edge of bullet ripples with the voice coil loudspeaker voice coil is connected, the both ends of bullet ripples with the basin frame is connected, the edge of vibrating diaphragm with the basin frame is connected, the middle part of vibrating diaphragm with the voice coil loudspeaker voice coil is connected, magnetic circuit includes T iron, magnet and china department, T iron includes bottom plate and bellying, magnet wraps the bellying and locates on the bottom plate, china department cover is located the bellying and is located the top of magnet; the voice coil is of a track type and is embedded in the washer and sleeved on the protruding portion. By adopting the T iron, the magnet with larger size is adopted without changing the size of the loudspeaker, so that the magnetic performance is improved; the racetrack voice coil is adopted, so that the size of the voice coil is not restricted by the width of the loudspeaker, and the bearing power and the performance frequency range of the loudspeaker are increased.

Description

Ultra-thin loudspeaker

Technical Field

The utility model relates to an electron audio-visual product technical field specifically relates to an ultra-thin speaker.

Background

With the popularization of electronic products such as notebook computers and LED televisions, many similar electronic products tend to be increasingly thinner and lighter, or speakers are mounted on the side frames of electronic products for better sound effect, so that the speakers face forward to be more favorable for sound transmission. Therefore, the width of the speaker used in these electronic products is required to be reduced to meet the requirement of light weight and thin or narrow frame, so most of the existing ultra-thin speakers use a common internal magnetic structure, i.e. a circular magnet and a magnetic conductive plate are arranged in a magnetic conductive U-iron, and a gap is left between the U-iron and the magnetic conductive plate, so that the voice coil can be arranged in the gap, because the diameter of the voice coil is smaller than the width of the speaker, and the outer diameter of the magnet is smaller than the inner diameter of the voice coil, thereby resulting in a smaller size of the voice coil and the magnet. However, after the width of the speaker is reduced, only the voice coil and the magnetic circuit with smaller sizes can be used, and the magnetic performance is weakened due to the reduction of the magnetic circuit, so that the sound of the speaker is smaller; however, the voice coil can only adopt a thinner voice coil wire after the size of the voice coil is reduced, so that the bearable power of the voice coil is lower and the voice of a low frequency band cannot be completely expressed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned prior art in at least one kind defect (not enough), provide an ultra-thin speaker, improved the magnetic property of magnetic circuit effectively, strengthened the bearing power and the performance frequency channel of speaker.

The utility model adopts the technical proposal that:

the ultrathin loudspeaker comprises a basin frame, a magnetic circuit system and a vibration system, wherein the magnetic circuit system and the vibration system are arranged on the basin frame, the vibration system comprises a vibration film, an elastic wave and a voice coil, the inner edge of the elastic wave is connected with the voice coil, two ends of the elastic wave are connected with the basin frame, the edge of the vibration film is connected with the basin frame, the middle part of the vibration film is connected with the voice coil, the magnetic circuit system comprises T iron, a magnet and a washer, the T iron comprises a bottom plate and a bulge, the magnet is wrapped around the bulge and arranged on the bottom plate, and the washer is sleeved on the bulge and positioned above the magnet; the voice coil is of a track type and is embedded in the washer and sleeved on the protruding portion.

By adopting the T iron, the magnet with larger size can be adopted, so that the size of the magnet is not restricted by the size of the voice coil, a larger magnetic circuit system is formed, and the magnetic performance of the magnetic circuit is improved; by adopting the track type voice coil, the size of the voice coil is not restricted by the width of the loudspeaker, a thicker voice coil wire can be adopted, and the bearing power and the performance frequency band of the loudspeaker are improved.

Preferably, the magnetic circuit system comprises two magnets, the two magnets are respectively arranged at two ends of the protruding portion, and the outer edge of the protruding portion is matched with the contact area of the two magnets.

The bulge is clamped between the two magnets, so that the structural size of the outer magnet consisting of the two magnets is not restricted by the size of the voice coil, the magnetic performance of the magnetic circuit system is improved, and the performance of the loudspeaker is improved.

Preferably, the magnet is provided with a hollow area, and the size and the shape of the hollow area are matched with the convex part.

The size of magnet is the same with the size of bottom plate, and the size and the shape of the hollow area of magnet match with the bellying to increased magnetic performance of magnetic circuit, improved the performance of speaker.

Preferably, the height of the protruding part is higher than the height of the magnet and the washer after being overlapped.

Preferably, the surface of the protrusion is kidney-shaped.

Preferably, the damper is provided with a waist-shaped hole, and the size of the waist-shaped hole is matched with that of the voice coil.

The voice coil is sleeved in the waist-shaped hole of the elastic wave, so that the voice coil does not have a T magnet or a magnet when moving in the magnetic gap, and the connection between the voice coil and the vibration film is kept at the center.

Preferably, the basin stand also comprises a terminal arranged on the basin stand; the voice coil includes skeleton, coil, copper foil and wire, the voice coil pass through the wire with the terminal is connected.

Through passing through the voice coil loudspeaker voice coil wire with establish the terminal connection on the basin frame to can be convenient for speaker and external circular telegram, convenient to use.

Preferably, the terminal is arranged on the basin frame in a riveting mode.

Locate the terminal on the basin frame through the riveted mode, reduce the deformation that terminal and basin frame are connected for the outward appearance of speaker is comparatively pleasing to the eye.

Preferably, the coil is a high-tension copper wire of a temperature-resistant type.

The temperature-resistant high-tension copper wire is used as the coil of the voice coil, so that the bearing power of the loudspeaker is further improved.

Preferably, the vibrating membrane comprises a body and a hanging edge arranged around the outer edge of the body, and the hanging edge is in a runway shape; the basin frame comprises a square body and a profiling groove used for suspending the vibrating membrane, and the suspended edge is bonded on the edge of the profiling groove.

The body is made of a material with high rigidity, the hanging edge is made of a flexible material, and under the action of a voice coil in the loudspeaker, the body can repeatedly vibrate by means of the flexibility of the hanging edge to generate sound.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the T iron, so that the magnet with larger size can be adopted without changing the size of the loudspeaker, and the magnetic performance of the magnetic circuit system is improved; the track type voice coil is adopted, so that the size of the voice coil is not restricted by the width of the loudspeaker, and the bearing power and the performance frequency range of the loudspeaker are increased; the utility model discloses a speaker accords with its outward appearance demand of installing on narrow frame promptly, can improve the power and the tone quality that bear again, and tone quality is effectual and application scope is wide.

Drawings

Fig. 1 is a cross-sectional view of a speaker according to the present invention.

Fig. 2 is an exploded view of the speaker of the present invention.

Reference numerals:

the magnet comprises a T-shaped iron 100, a bottom plate 110, a boss 120, a magnet 200, a washer 300, a terminal 400, a basin frame 500, a damper 600, a voice coil 700 and a vibrating diaphragm 800.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "fixed" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

In order to solve the problem that the width of the speaker is required to be small to meet the requirement of installing the speaker in a narrow frame in the conventional electronic product, which results in a smaller sound and a smaller bearable power of the speaker, the present embodiment provides an ultra-thin speaker, and referring to fig. 1 and fig. 2, fig. 1 is a cross-sectional view of an ultra-thin speaker according to an embodiment of the present invention, and fig. 2 is an exploded view of the ultra-thin speaker; an ultrathin loudspeaker comprises a basin frame 500, a magnetic circuit system and a vibration system which are arranged on the basin frame 500, wherein the vibration system comprises a vibration film 800, an elastic wave 600 and a voice coil 700, the inner edge of the elastic wave 600 is connected with the voice coil 700, two ends of the elastic wave 600 are connected with the basin frame 500, the edge of the vibration film 800 is connected with the basin frame 500, the middle part of the vibration film 800 is connected with the voice coil 700, the magnetic circuit system comprises a T iron 100, a magnet 200 and a washer 300, the T iron 100 comprises a bottom plate 110 and a bulge 120, the magnet 200 wraps the bulge 120 and is arranged on the bottom plate 110, and the washer 300 is sleeved on the bulge 120 and is positioned above the magnet 200; the voice coil 700 is track-shaped and embedded in the washer 300 and is sleeved on the protrusion 120.

Specifically, the shape of the speaker provided in this embodiment is substantially a rectangular parallelepiped, the inner edge of the damper 600 may be, but is not limited to, bonded to the voice coil 700 by glue, the two ends of the damper 600 may be, but is not limited to, bonded to the frame 500 by glue, the edge of the diaphragm 800 may be, but is not limited to, bonded to the frame 500 by glue, the middle of the diaphragm 800 may be, but is not limited to, bonded to the voice coil 700 by glue, the magnetic circuit system includes the T-iron 100, the magnet 200, and the washer 300, the T-iron 100 includes the bottom plate 110 and the protrusion 120, specifically, the bottom plate 110 is substantially a rectangular parallelepiped, and the washer 300 may have a size that is the same as the size of the bottom plate 110, or smaller than the size of the bottom plate 110; the magnet 200 is wrapped around the boss 120 and arranged on the bottom plate 110, the washer 300 is sleeved on the boss 120 and located above the magnet 200, specifically, the washer 300 is provided with a hollow part, the size and the shape of the hollow part are both matched with the boss 120, the magnet 200 and the washer 300 can be sequentially superposed on the bottom plate 110 in a bonding mode, the voice coil 700 is in a runway shape and is matched with the shape of the boss 120, specifically, a magnetic gap is formed among the magnet 200, the washer 300 and the boss 120, and the voice coil 700 is embedded in the washer 300 and sleeved on the boss 120; when the voice coil 700 is powered on, the magnetic field in the magnetic circuit system is cut to push the diaphragm 800 to vibrate, and the damper 600 supports the voice coil 700 to perform vertical linear vibration in the vibration process of the voice coil 700.

By adopting the T iron 100, the magnet 200 with larger size can be adopted, so that the size of the magnet 200 is not restricted by the size of the voice coil 700, a larger magnetic circuit system is formed, and the magnetic performance of the magnetic circuit is improved; by adopting the track type voice coil 700, the size of the voice coil 700 is not restricted by the width of the loudspeaker, and a thicker voice coil 700 wire can be adopted, so that the bearing power and the performance frequency band of the loudspeaker are improved.

In one embodiment, the surface of the boss 120 is kidney-shaped.

In one embodiment, the magnetic circuit system includes two magnets 200, the two magnets 200 are respectively disposed at two ends of the protruding portion 120, and the outer edge of the protruding portion 120 matches the contact area of the two magnets 200.

Specifically, the surface of the protruding portion 120 is waist-shaped, the whole protruding portion 120 is waist-shaped, the protruding portion 120 is integrally designed on the bottom plate 110, the two magnets 200 are respectively arranged at two ends of the protruding portion 120, the protruding portion 120 is clamped in the middle, and the outer edge of the protruding portion 120 is matched with the contact area of the two magnets 200.

The protruding part 120 is clamped between the two magnets 200, so that the structural size of the outer magnet 200 consisting of the two magnets 200 is not restricted by the size of the voice coil 700, the magnetic performance of a magnetic circuit system is increased, and the performance of the loudspeaker is improved.

In another embodiment, the number of the magnets 200 used in the magnetic circuit system is 1, and the magnets 200 have hollow areas with sizes and shapes matching with the protrusions 120.

The size of the magnet 200 is the same as that of the bottom plate 110, and the size and shape of the hollow area of the magnet 200 are matched with those of the convex part 120, so that the magnetic performance of the magnetic circuit system is increased, and the performance of the loudspeaker is improved.

In one embodiment, the height of the boss 120 is higher than the height of the magnet 200 and the washer 300 after they are stacked.

Specifically, the height of the protruding portion 120 may be equal to or higher than the height of the magnet 200 and the washer 300 after being stacked, and in an embodiment, the height of the protruding portion 120 is slightly higher than the height of the magnet 200 and the washer 300 after being stacked.

In one embodiment, the damper 600 is provided with a kidney-shaped hole, the size of which matches the size of the voice coil 700.

By fitting the voice coil 700 in the waist-shaped hole of the damper 600, the voice coil 700 does not become the magnet T100 or the magnet 200 when moving in the magnetic gap, and the connection between the voice coil 700 and the diaphragm 800 is maintained at the center.

In one embodiment, a terminal 400 provided on the tub 500 is further included; the voice coil 700 includes a bobbin, a coil, a copper foil, and a wire, and the voice coil 700 is connected to the terminal 400 through the wire.

Specifically, the framework can be made of kraft paper or duralumin, the lead can be but is not limited to a cotton thread, a copper-clad aluminum wire, an SV wire, a LOCK wire and the like, and one end terminal 400 of the lead is welded together; in a specific implementation process, the terminal 400 introduces current into the voice coil 700 through a conducting wire, and when the current passes through the voice coil 700, the current provides driving force for the voice coil 700 under the action of an ampere force of the magnetic circuit system, so as to push the diaphragm 800 to vibrate and generate resonance with the surrounding air to make sound.

The voice coil 700 is connected with the terminal 400 arranged on the frame 500 through a wire, so that the loudspeaker and the external power supply can be facilitated, and the use is convenient.

In one embodiment, the terminal 400 is riveted to the frame 500.

The terminal 400 is arranged on the frame 500 in a riveting mode, so that the deformation of the connection of the terminal 400 and the frame 500 is reduced, and the appearance of the loudspeaker is attractive.

In yet another embodiment, the coil is a temperature resistant type of high tensile copper wire.

The temperature-resistant high-tension copper wire is used as the coil of the voice coil 700, so that the bearing power of the loudspeaker is further improved.

In this embodiment, the vibrating membrane 800 includes a body and a hanging edge surrounding the outer edge of the body, and the hanging edge is racetrack-shaped; the frame 500 includes a square body and a contour groove for suspending the diaphragm 800, and the suspended edge is adhered to the edge of the contour groove.

Specifically, the diaphragm 800 is a flat diaphragm 800 with high rigidity, and the body thereof may be formed by, but not limited to, attaching a foam board body with an aluminum film, where the foam board body has a light mass, and the aluminum film reinforces the rigidity of the foam board body, so that the frequency response curve of the speaker is flatter.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultrathin loudspeaker comprises a frame, a magnetic circuit system and a vibration system, wherein the magnetic circuit system and the vibration system are arranged on the frame, the vibration system comprises a vibration film, an elastic wave and a voice coil, the inner edge of the elastic wave is connected with the voice coil, the two ends of the elastic wave are connected with the frame, the edge of the vibration film is connected with the frame, and the middle part of the vibration film is connected with the voice coil; the voice coil is of a track type and is embedded in the washer and sleeved on the protruding portion.

2. The ultra-thin speaker as claimed in claim 1, wherein the magnetic circuit system comprises two magnets, the two magnets are respectively disposed at two ends of the protrusion, and the outer edge of the protrusion matches with the contact area of the two magnets.

3. The ultra-thin speaker as claimed in claim 1, wherein the magnet has a hollow area, and the size and shape of the hollow area are matched with the protrusion.

4. The ultra-thin speaker as claimed in claim 1, wherein the height of the protrusion is higher than the height of the magnet and the washer after being stacked.

5. The ultra-thin speaker as claimed in any one of claims 1 to 4, wherein the surface of the protrusion is waist-shaped.

6. The ultra-thin speaker as claimed in claim 5, wherein the damper has a waist-shaped hole, and the size of the waist-shaped hole matches with the size of the voice coil.

7. The ultra-thin speaker as claimed in claim 1, further comprising a terminal provided on the frame; the voice coil includes skeleton, coil, copper foil and wire, the voice coil pass through the wire with the terminal is connected.

8. The ultra-thin speaker as claimed in claim 7, wherein the terminal is riveted to the frame.

9. An ultra-thin speaker as claimed in claim 7, wherein the coil is a high tension copper wire of a temperature-resistant type.

10. The ultra-thin speaker as claimed in claim 1, wherein the diaphragm comprises a body and a hanging edge surrounding an outer edge of the body, the hanging edge being racetrack shaped; the basin frame comprises a square body and a profiling groove used for suspending the vibrating membrane, and the suspended edge is bonded on the edge of the profiling groove.