CN214675661U - Loudspeaker - Google Patents

Abstract

The utility model relates to a loudspeaker, including the basin frame, locate vibration system and two at least magnetic circuit on the basin frame, magnetic circuit includes U iron, magnet and china department, magnet with china department folds in proper order and locates on the U iron, vibration system includes vibrating diaphragm and two at least voice coil loudspeaker voice coils, the vibrating diaphragm with the basin frame is connected, the voice coil loudspeaker voice coil with the vibrating diaphragm is connected and the cover is located on the china department, still including playing the pad, play the pad install in just be located two in the basin frame between the voice coil loudspeaker voice coil, play the pad and be the hemisphere, its bottom be equipped with trompil and its top with the vibrating diaphragm bonds. The utility model discloses the nonlinear distortion of speaker has been improved and the synchronous vibration between a plurality of voice coils of speaker has been adjusted, has promoted the quality of speaker.

Description

Loudspeaker

Technical Field

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

Background

With the arrival of the artificial intelligence era, the requirements of people on the quality of life are continuously improved, high-quality, high-power, low-distortion and ultrathin sound box products are more and more popular with people, and in order to achieve better sound effect, some electronic products such as televisions or tablet computers on the market at present mount a loudspeaker on a frame so that the loudspeaker is more beneficial to sound transmission because the sound emitting surface faces forward, and therefore the width of the loudspeaker is required to be reduced to meet the appearance requirement of a narrow frame.

Because the width of speaker can only use less voice coil loudspeaker voice coil and magnetic circuit of size after reducing, this can lead to the efficiency of speaker to become low and can bear the power decline, in order to improve this problem, current mode is to make the structure of dual magnetic circuit dual voice coil loudspeaker voice coil, however, the regional rigidity of drum paper between two voice coil loudspeaker voice coil in dual voice coil dual magnetic circuit is relatively poor, and can only make no elastic wave structure because the size is less can not install additional elastic wave as the support, can lead to the drum paper front and back vibration inconsistent when two voice coil loudspeaker voice coil because material tolerance or other difference vibrations are asynchronous, thereby cause nonlinear distortion, reduce the quality of speaker, can produce the deformation and cause unusual sound in drum paper mid portion after long-time the use.

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 a speaker, improved the nonlinear distortion of speaker and adjusted the synchronous vibration between a plurality of voice coils of speaker, promoted the quality of speaker.

The utility model discloses a scheme do:

the utility model provides a loudspeaker, include the basin frame, locate vibration system and two at least magnetic circuit on the basin frame, magnetic circuit includes U iron, magnet and magnificent department, magnet with magnificent department superposes in proper order and locates on the U iron, vibration system includes vibrating diaphragm and two at least voice coil loudspeaker voice coils, the vibrating diaphragm with the basin frame is connected, the voice coil loudspeaker voice coil with the vibrating diaphragm is connected and is located the magnificent department is last, still includes the bullet pad, the bullet pad install in just be located two in the basin frame between the voice coil loudspeaker voice coil, the bullet pad is the hemisphere, its bottom be equipped with trompil and its top with the vibrating diaphragm bonds.

The elastic pad is arranged in the basin frame and between the two voice coils, the elastic pad is hemispherical, the top of the elastic pad is bonded with the vibrating membrane, and the elastic pad can support the partial area of the vibrating membrane between the two voice coils, so that the rigidity of the vibrating membrane structure can be enhanced; the opening at the bottom of the elastic cushion can adjust the air pressure in the elastic cushion so as to adjust the supporting force, so that the elastic cushion can synchronously vibrate along with the front and back vibration of the vibrating membrane, the amplitude of the loudspeaker cannot be constrained, the nonlinear distortion of the loudspeaker is improved, the voice coils synchronously vibrate, and the quality of the loudspeaker is improved; adopt a plurality of magnetic circuit and a plurality of voice coil loudspeaker voice coil can improve the bearable power and the sensitivity of speaker, the structural design of this speaker is reasonable, and the preparation is small and the equipment is convenient, can satisfy the outward appearance demand of installing at narrow frame, can guarantee again that tone quality is harmless.

Preferably, the voice coil loudspeaker further comprises a terminal, wherein the terminal is arranged on the basin frame and connected with the voice coil.

Through being connected the voice coil loudspeaker voice coil with the terminal of establishing 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 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.

Preferably, the basin stand comprises a square body and a contour groove for suspending the diaphragm, and the suspension edge is bonded on the edge of the contour 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.

Preferably, the elastic pad is made of fabric or rubber materials.

Preferably, the terminal is electrically connected to the voice coil through a wire.

Preferably, the voice coil loudspeaker voice coil includes skeleton, coil and copper foil, the skeleton cover is established the china department with the outside of magnet, the coil is around establishing the skeleton is close to the one end of china department, the copper foil sets up on the skeleton and respectively with wire and coil are connected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model arranges the elastic pad between the two voice coils in the basin frame, the elastic pad is hemispherical, the top of the elastic pad is bonded with the vibrating membrane, and the elastic pad can support the partial area of the vibrating membrane between the two voice coils, thereby strengthening the rigidity of the vibrating membrane structure; the elastic cushion can synchronously vibrate along with the front and back vibration of the vibrating membrane, so that the amplitude of the loudspeaker is not restricted, the nonlinear distortion of the loudspeaker is improved, the voice coils synchronously vibrate, and the quality of the loudspeaker is improved; adopt a plurality of magnetic circuit and a plurality of voice coil loudspeaker voice coil can improve the bearable power and the sensitivity of speaker, the utility model provides a structural design of speaker is reasonable, and the preparation is small and the equipment is convenient, can satisfy the outward appearance demand of installing at narrow frame, can guarantee again that tone quality is harmless.

Drawings

Fig. 1 is a sectional view of the structure of the speaker of the present invention.

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

Reference numerals:

the voice coil loudspeaker comprises a U-shaped iron 100, a magnet 200, a washer 300, a terminal 400, a basin frame 500, a spring washer 600, a voice coil 700 and a vibrating membrane 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

The present embodiment provides a speaker, and referring to fig. 1 and fig. 2, fig. 1 is a cross-sectional view of a structure of the speaker according to the embodiment of the present invention, and fig. 2 is an exploded view of a structure of a high-quality speaker; the utility model provides a loudspeaker, including basin frame 500, locate vibration system and two at least magnetic circuit on basin frame 500, magnetic circuit includes U iron 100, magnet 200 and magnificent department 300, magnet 200 overlaps in proper order with magnificent department 300 and locates on U iron 100, vibration system includes vibrating diaphragm 800 and two at least voice coil loudspeaker voice coils 700, vibrating diaphragm 800 is connected with basin frame 500, voice coil loudspeaker voice coil 700 is connected and overlaps with vibrating diaphragm 800 and locates on magnificent department 300, still include bullet pad 600, bullet pad 600 is installed in basin frame 500 and is located between two voice coil loudspeaker voice coils 700, bullet pad 600 is the hemisphere, its bottom is equipped with the trompil and its top bonds with vibrating diaphragm 800.

Specifically, the shape of the speaker provided in this embodiment is substantially a cuboid, the frame 500 is substantially a cuboid in appearance, the diaphragm 800 is fixed to the top of the frame 500, specifically, the edge of the diaphragm 800 may be, but is not limited to, bonded to the frame 500 through glue, at least two voice coils 700 may be, but is not limited to, bonded to the lower side of the diaphragm 800 through glue, the number of the magnetic circuit systems is equal to the number of the voice coils 700, the at least two magnetic circuit systems are respectively sleeved below the corresponding voice coils 700, in the specific implementation process, the number of the magnetic circuit systems and the voice coils 700 is two, and the two magnetic circuit systems and the two voice coils 700 are both arranged in bilateral symmetry; the U-shaped iron 100 comprises a groove part, the magnet 200 and the washer 300 are sequentially overlapped in the groove part, the sizes of the magnet 200 and the washer 300 are matched with the groove part, a magnetic gap is formed between the magnet 200 and the washer 300 and the inner wall of the U-shaped iron 100, and the voice coil 700 is located in the magnetic gap; the elastic pad 600 in a hemispherical shape is arranged in the basin frame 500 and located between the two voice coils 700, the top of the elastic pad 600 can be but is not limited to be bonded with the vibrating membrane 800 through glue, and the opening formed in the bottom of the elastic pad 600 can adjust the air pressure inside the elastic pad 600 to adjust the supporting force of the elastic pad 600; 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 elastic pad 600 vibrates along with the vibration of the voice coil 700 and the diaphragm 800 in the vibration process of the voice coil 700.

By arranging the elastic pad 600 in the frame 500 and between the two voice coils 700, the elastic pad 600 is hemispherical and the top of the elastic pad 600 is bonded to the diaphragm 800, and the elastic pad 600 can support a part of the diaphragm 800 between the two voice coils 700, so that the rigidity of the diaphragm 800 structure can be enhanced; the opening at the bottom of the elastic pad 600 can adjust the air pressure inside the elastic pad 600 to adjust the supporting force, so that the elastic pad 600 can synchronously vibrate along with the front and back vibration of the vibrating membrane 800, the amplitude of the loudspeaker cannot be restricted, the nonlinear distortion of the loudspeaker is improved, the voice coil 700 synchronously vibrates, and the quality of the loudspeaker is improved; adopt a plurality of magnetic circuit systems and a plurality of voice coil loudspeaker voice coil 700 can improve the bearable power and the sensitivity of speaker, the structural design of this speaker is reasonable, and the preparation is small and the equipment is convenient, can satisfy the outward appearance demand of installing at narrow frame, can guarantee again that tone quality is harmless.

In this embodiment, the elastic pad 600 is made of fabric or rubber.

In this embodiment, a terminal 400 is further included, and the terminal 400 is disposed on the frame 500 and connected to the voice coil 700. The terminal 400 is mounted on the frame 500 by riveting.

Specifically, the speaker that this embodiment provided has included two terminals 400, and two terminals 400 all set up the both ends at basin frame 500 bottom through the riveted mode, and two terminals 400 are connected with different voice coils 700 respectively.

The voice coil 700 is connected with the terminal 400 arranged on the frame 500, so that the speaker can be conveniently electrified with external connection, and the use is convenient; 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 this embodiment, the diaphragm 800 includes a body and a hanging edge surrounding the outer edge of the body, and the hanging edge is racetrack-shaped.

In the present embodiment, the frame 500 includes a square body and a contour groove for suspending the diaphragm 800, and the suspension 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.

The body is made of a material with high rigidity, the hanging edge is made of a flexible material, and under the action of the voice coil 700 in the loudspeaker, the body can repeatedly vibrate by means of the flexibility of the hanging edge to generate sound.

In this embodiment, the voice coil 700 includes a bobbin, a coil and a copper foil, the bobbin is sleeved outside the washer 300 and the magnet 200, the coil is wound around one end of the bobbin near the washer 300, and the copper foil is disposed on the bobbin and connected with the lead and the coil respectively.

Specifically, the voice coil 700 includes a frame, a coil, a copper foil and a lead, the voice coil 700 is connected with the terminal 400 through the lead, the frame may be made of kraft paper or may be made of duralumin, the lead may be but is not limited to a cotton thread, a copper-clad aluminum wire, an SV wire, a LOCK wire, etc., and the terminal 400 at one end of the lead is welded together; in a specific implementation process, the terminal 400 introduces current into the voice coil 700 through a cotton 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.

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 (8)

1. The utility model provides a loudspeaker, includes the basin frame, locates vibration system and two at least magnetic circuit on the basin frame, magnetic circuit includes U iron, magnet and magnificent department, magnet with magnificent department superposes in proper order and locates on the U iron, vibration system includes vibrating diaphragm and two at least voice coil loudspeaker voice coils, the vibrating diaphragm with the basin frame is connected, the voice coil loudspeaker voice coil with the vibrating diaphragm is connected and the cover is located on the magnificent department, its characterized in that still includes the bullet pad, the bullet pad install in just be located two in the basin frame between the voice coil loudspeaker voice coil, the bullet pad is the hemisphere, its bottom be equipped with trompil and its top with the vibrating diaphragm bonds.

2. The speaker of claim 1, further comprising a terminal disposed on the frame and connected to the voice coil.

3. A loudspeaker according to claim 2, wherein the terminals are riveted to the frame.

4. The loudspeaker of claim 1, wherein the diaphragm includes a body and a rim disposed around an outer edge of the body, the rim being racetrack-shaped.

5. A loudspeaker according to claim 4, wherein the frame comprises a square body and a profiled groove for suspending the diaphragm, the suspension edge being bonded to an edge of the profiled groove.

6. A loudspeaker according to any one of claims 1 to 5, wherein the resilient pad is made of fabric or rubber-like material.

7. A loudspeaker according to any one of claims 2 or 3, wherein the terminals are electrically connected to the voice coil by wires.

8. The loudspeaker according to claim 7, wherein the voice coil comprises a framework, a coil and a copper foil, the framework is sleeved on the outer sides of the washer and the magnet, the coil is wound on one end, close to the washer, of the framework, and the copper foil is arranged on the framework and connected with the lead and the coil respectively.

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