CN204518065U

CN204518065U - Loud speaker

Info

Publication number: CN204518065U
Application number: CN201520215221.0U
Authority: CN
Inventors: 徐增强; 陈钢; 张志兵
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2015-04-10
Filing date: 2015-04-10
Publication date: 2015-07-29
Anticipated expiration: 2025-04-10

Abstract

The utility model provides a kind of loud speaker, comprises shell and vibrational system; Vibrational system comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with vibrating diaphragm; The becket supporting vibrating diaphragm is combined with on the downside of vibrating diaphragm; Fix with shell sidepiece on the downside of becket; On shell, injection moulding is combined with the conductive element device being communicated with loud speaker peripheral circuits; Wherein, one end of conductive element device and the lead-in wire of voice coil loudspeaker voice coil are electrically connected, and the other end extends to becket; Vibrating diaphragm and becket are electrically connected; Becket is connected with conductive element device electric.The loud speaker that above-mentioned utility model provides, can discharge the electrostatic of vibrating diaphragm and becket generation in time, avoid the damage caused loud speaker that sparks.

Description

Loudspeaker

Technical Field

The utility model relates to an acoustoelectric technology field, more specifically relates to a loudspeaker.

Background

A speaker plays an indispensable role in a sound reproduction system as a common electroacoustic transducer device for converting electric energy into acoustic energy. The loudspeaker is the weakest component in the sound reproduction system, and is the most important component for the sound reproduction effect. The loudspeaker has various types, and audio electric energy enables a cone or a diaphragm to vibrate and generate resonance with surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effects. Therefore, people can hear wonderful sound just with the appearance of the loudspeaker.

In our daily life, the most widely used loudspeakers are electrodynamic loudspeakers, also known as moving-coil loudspeakers. The vibration type magnetic circuit mainly comprises a vibration system, a magnetic circuit system and an auxiliary system. Generally, a vibration system includes a voice coil and a diaphragm; the magnetic circuit system comprises a magnet, a magnetic conduction plate and a washer; the auxiliary system includes a front cover and a housing. When voice coil in the magnetic field has audio current to flow through, it can receive an alternating driving force to produce alternating motion, so as to drive the vibrating diaphragm to vibrate, and further repeatedly drive the air to produce sound.

At present, because a metal ring for fixing a vibrating diaphragm of a loudspeaker and the vibrating diaphragm are not grounded, static electricity generated by the vibrating diaphragm or the metal ring cannot be released in time when a Driver (Driver) operates, and the service life of the vibrating diaphragm and the tone quality of the loudspeaker are influenced; in addition, when the static electricity generated by the metal ring is unreasonably released, the loudspeaker generates sound distortion, and when the static current is large, the voice coil moves due to instantaneous discharge, the relative position of the voice coil and the vibrating diaphragm is changed, the acoustic performance of the loudspeaker is affected, and even the loudspeaker fails.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model aims at providing a loudspeaker, adopt this kind of loudspeaker to cause vibrating diaphragm life weak point, tone quality subalternation problem with solving present vibrating diaphragm and the unable static of releasing of becket.

The utility model provides a loudspeaker, which comprises a shell and a vibration system; the vibration system comprises a vibrating diaphragm and a voice coil which is fixedly bonded with the vibrating diaphragm; a metal ring for supporting the vibrating diaphragm is combined on the lower side of the vibrating diaphragm; the lower side of the metal ring is fixed with the side part of the shell; a conductive element connected with an external circuit inside and outside the loudspeaker is molded and combined on the shell; one end of the conductive component is electrically connected with the lead of the voice coil, and the other end of the conductive component extends to the metal ring; the vibrating diaphragm is electrically connected with the metal ring; the metal ring is electrically connected with the conductive component.

In addition, the preferable structure is that the vibrating diaphragm and the metal ring are electrically connected through laser welding or conductive adhesive.

In addition, preferably, the metal ring and the conductive component are also electrically connected by laser welding or conductive adhesive.

Further, it is preferable that the conductive component includes a pad, an FPCB, and a wire.

Further, it is preferable that the pad is located on the spring plate of the speaker.

In addition, it is preferable that the extending surface of the conductive component is electrically connected to the surface of the metal ring.

In addition, the preferable structure is that the resistance value of the electrical connection part of the metal ring and the conductive component is not more than 2 kilohms.

In addition, the preferred structure is that the magnetic circuit system is also included; wherein, the magnetic circuit system comprises a basin frame, a magnet and a washer which are contained in the basin frame; the magnet is fixedly bonded with the basin frame; the washer covers the upper surface of the magnet.

Further, it is preferable that a sound outlet hole is provided on a side portion of the housing; the shell is provided with a damping net in a position corresponding to the sound outlet.

According to the technical scheme above, the utility model provides a loudspeaker, with electrically conductive components and parts and becket electric connection, becket and vibrating diaphragm electric connection can realize the discharge to vibrating diaphragm and becket, simple process can utilize lower cost to improve the acoustic performance and the product life-span of loudspeaker, and volume production nature is high.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 is a top view of a speaker according to an embodiment of the present invention;

fig. 2 is a side view of a speaker according to an embodiment of the present invention;

fig. 3 is an exploded view of a speaker according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a speaker according to an embodiment of the present invention; and the number of the first and second groups,

fig. 5 is a partially enlarged view of a portion I in fig. 4.

Wherein the reference numerals include: the device comprises a vibrating diaphragm 1, a metal ring 2, a conductive component 3, a shell 4, a damping net 5, a washer 6, a magnet 7, a basin frame 8 and a voice coil 9.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

The unable release of static to above-mentioned becket and vibrating diaphragm production causes vibrating diaphragm life to shorten, and speaker tone quality worsens the scheduling problem, the utility model discloses according to the structural feature of speaker, with the conductive components and parts of speaker self and the becket electric conductance of fixed vibrating diaphragm, through the static that conductive components and parts release becket and vibrating diaphragm produced, effectively prevent the Driver damage that static caused, prolong the live time of vibrating diaphragm, improve speaker tone quality, and the utility model discloses a speaker is with low costs, simple process, and volume productibility is high.

For the purpose of describing the speaker in detail, the following description will be made in detail with reference to the accompanying drawings.

Fig. 1 shows a top view structure of a loudspeaker according to an embodiment of the invention; fig. 2 shows a side view structure of a speaker according to an embodiment of the present invention; fig. 3 shows an exploded structure of a speaker according to an embodiment of the present invention.

As shown in fig. 1, 2 and 3 together, the embodiment of the present invention provides a speaker including a housing 4 and a vibration system; the vibration system comprises a vibrating diaphragm 1 and a voice coil 9 which is fixedly bonded with the vibrating diaphragm 1; a metal ring 2 for supporting the vibrating diaphragm 1 is combined on the lower side of the vibrating diaphragm 1, and the lower side of the metal ring 2 is fixedly connected with the side part of the shell 4; and a conductive component 3 communicated with an external circuit inside and outside the loudspeaker is injection-molded and combined on the shell 4. Wherein, the one end of electrically conductive components and parts 3 and the lead wire electric connection of voice coil loudspeaker voice coil 9, its other end extend to the becket and with becket 2 electric connection, vibrating diaphragm 1 and becket 2 electric connection, becket 2 and electrically conductive components and parts 3 electric connection, and then make the static that vibrating diaphragm 1 or becket 2 produced can in time release through electrically conductive components and parts 3.

In an embodiment of the present invention, the conductive component 3 is located on the end surface of the side portion of the housing 4 combined with the metal ring 2, so as to facilitate the electrical connection between the metal ring 2 and the conductive component 3.

In addition, the utility model provides a loudspeaker still includes magnetic circuit; wherein, the magnetic circuit system comprises a basin frame 8, a magnet 7 and a washer 6 which are contained in the basin frame 8; the magnet 7 is fixedly bonded with the basin frame 8; the washer 6 covers the upper surface of the magnet 7.

Specifically, the embodiment of the present invention provides a speaker including a magnetic circuit system, a vibration system and an auxiliary system. Wherein, the magnetic circuit system comprises a basin frame 8, a magnet 7 and a washer 6; the vibration system comprises a vibration diaphragm 1 and a voice coil 9, and a metal ring 2 is combined on the lower side of the vibration diaphragm 1; the auxiliary system comprises a housing 4. The utility model discloses a speaker is still including the electrically conductive components and parts 3 that are used for communicateing the speaker internal and external circuit. Wherein, the metal ring 2 combines in 4 tops of shell for fixed stay vibrating diaphragm 1, and vibrating diaphragm 1 and metal ring 2 electric connection, metal ring 2 and conductive components and parts 3 electric connection, magnet 7 and china department 6 are acceptd in basin frame 8 inside to set up certain distance with between the basin frame 8, form the magnetic gap, and voice coil 9 bonds fixedly with vibrating diaphragm 1, and the one end of voice coil 9 is arranged in this magnetic gap. In addition, a sound outlet is provided on the side of the housing 4; and a damping net 5 is attached to the position, corresponding to the sound outlet, of the shell 4 so as to prevent pollutants in the air from entering the loudspeaker.

The utility model discloses in the components and parts that related electrically conductive components and parts 3 can be electrically conductive for pad, FPCB or wire etc. should electrically conductive components and parts 3 mainly used communicate inside device of speaker and external circuit. As shown in fig. 3, in an embodiment of the present invention, the conductive component 3 is a pad on the elastic sheet. Wherein, vibrating diaphragm 1 is fixed on becket 2, becket 2 is fixed on the shell 4 lateral part, and the shell fragment is provided with two for connect external circuit and voice coil 9.

Wherein, the shape of vibrating diaphragm 1 can be rectangle, runway type or oval-shaped structure, including combining in the reinforcement portion of its central part and the vibrating diaphragm body portion that is located the edge part, the laminating of becket 2 is on shell 4, and vibrating diaphragm 1 supports fixedly through becket 2, and the two electric conduction each other.

In addition, damping net 5 pastes the position that corresponds the phonate hole at shell 2, not only can prevent the tiny particle pollutant in the air to get into inside the speaker, can also avoid the direct impact of air current to vibrating diaphragm 1, ensures the tone quality and the acoustic performance of speaker in the use.

It should be noted that, in a specific embodiment of the present invention, the conductive component 3 can be a pad, and the pad refers to any pad with conductive function inside the speaker, and it can be a pad set by the elastic piece itself, and also can be a pad set on the FPCB, as long as it can be electrically connected to the metal ring 2, and it is not limited specifically.

Furthermore, the embodiment of the utility model provides a basin frame 8 of speaker adopts the material preparation of high magnetic conduction to form, fixes on shell 4 through rubber coating or fixed column in the use, can play radiating effect, avoids magnetic circuit during operation high temperature, guarantees the acoustic performance of speaker.

In a preferred embodiment of the present invention, the conductive component 3 may be any one of a pad, an FPCB, a wire, or the like, and the metal ring 2 electrically connected to any one of the pads can discharge the diaphragm 1; when the conductive component 3 is a wire, the wire is a wire connected to a power line in any speaker.

The utility model discloses in, the conductive components and parts 3 that will be used for intercommunication external circuit in the speaker and the becket 2 of fixed vibrating diaphragm 1 carry out the electric conductance and lead to (electric connection promptly), through the static that conductive components and parts 3 release becket 2 or vibrating diaphragm 1 that speaker self set up produced, can prolong the life of vibrating diaphragm, improve the tone quality of speaker to prevent the damage that the static caused to the speaker, easy operation, volume production nature is high.

In the above process of electrically connecting the conductive component 3 and the metal ring 2, the conductive component 3 is extended to the metal ring 2, and is electrically connected with the metal ring 2 through conductive adhesive or laser welding and other processes. For example, when the conductive component 3 is a wire, the wire may be extended to the metal ring 2 in a process of discharging static electricity to the metal ring 2 of the speaker, and the metal ring 2 and the wire may be electrically connected by a process such as conductive paste or laser welding. Similarly, the conductive component such as the bonding pad or the FPCB can be electrically connected to the metal ring 2 in this way, so as to release the static electricity generated by the diaphragm 1 or the metal ring 2. In this scheme, vibrating diaphragm 1 and becket 2 realize electric connection through same mode.

It should be noted that, in the specific implementation process, the metal ring 2 and the diaphragm 1, and the conductive component 3 and the metal ring 2 are electrically connected by laser welding or conductive adhesive conduction, which is only an exemplary list made for explaining that this scheme can be implemented in the existing process, and the conduction mode is not limited to the above two, but may also be other achievable conduction modes.

In one embodiment of the present invention, the extending surface of the conductive component 3 is electrically connected to the surface of the metal ring 2; because vibrating diaphragm 1 is through metal ring 2 fixed stay and the two also be electric connection, when vibrating diaphragm 1 or metal ring 2 produced static, can release through the electrically connected conductive components and parts 3 with it, avoid static to cause the destruction to the speaker.

In addition, in order to smoothly discharge static electricity generated on the diaphragm 1 or the metal ring 2, the resistance value of the electrical connection part between the metal ring 2 and the conductive component 3 is ensured to be not more than 2K ohm as much as possible in the process of electrically conducting the metal ring and the conductive component. In other words, the resistance of the connection portion between the conductive component 3 and the metal ring 2 is controlled within 2K ohms, so as to ensure that the static electricity generated by the metal ring 2 or the diaphragm 1 is smoothly and timely released.

Specifically, as an example, fig. 4 shows a sectional structure of a speaker according to an embodiment of the present invention; fig. 5 shows a partially enlarged structure of a portion I in fig. 4.

As shown in fig. 4 and fig. 5, in this embodiment, the metal ring 2 and the conductive component 3 (the pad disposed on the elastic sheet) are electrically connected to each other, and since the metal ring 2 is electrically connected to the diaphragm 1 of the speaker, when the diaphragm 1 or the metal ring 2 generates static electricity, the static electricity can be released in time through the conductive component 3 electrically connected to the metal ring 2.

The conductive component 3 extends to the metal ring 2, is electrically connected with the metal ring 2 through processes such as conductive adhesive or laser welding, and the vibrating diaphragm 1 is electrically connected with the metal ring 2, so that grounding discharge of the vibrating diaphragm and the metal ring can be realized without adding parts, and the acoustic performance and the service life of the loudspeaker can be improved by utilizing lower cost; in addition, processes such as conducting resin and laser welding have widely been used in the acoustoelectric field, and the process is mature, can realize the utility model provides a batch production of speaker.

According to the above embodiment, the utility model provides a loudspeaker, through the becket with the fixed stay vibrating diaphragm and the inside electrically conductive components and parts electric connection of loudspeaker, with vibrating diaphragm and becket electric connection, the static that release becket and vibrating diaphragm produced simultaneously can prolong the life of vibrating diaphragm, improves the tone quality of loudspeaker, avoids the loudspeaker to damage because of self static causes in the use. Furthermore, the utility model provides a loudspeaker, the cost of manufacture is low, and simple process need not add spare part, utilizes lower cost can improve loudspeaker acoustic performance and product life.

The loudspeaker according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the loudspeaker of the present invention described above without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.

Claims

1. A loudspeaker comprising a housing and a vibration system; the vibration system comprises a vibrating diaphragm and a voice coil which is fixedly bonded with the vibrating diaphragm; a metal ring for supporting the diaphragm is combined on the lower side of the diaphragm; the lower side of the metal ring is fixed with the side part of the shell; the shell is combined with a conductive element which is communicated with an internal circuit and an external circuit of the loudspeaker through injection molding; it is characterized in that the preparation method is characterized in that,

one end of the conductive component is electrically connected with the lead of the voice coil, and the other end of the conductive component extends to the metal ring;

the vibrating diaphragm is electrically connected with the metal ring;

the metal ring is electrically connected with the conductive component.

2. The loudspeaker of claim 1,

the vibrating diaphragm and the metal ring are electrically connected through laser welding or conductive adhesive.

3. The loudspeaker of claim 1,

the metal ring and the conductive component are also electrically connected through laser welding or conductive adhesive.

4. The loudspeaker of claim 1,

the conductive component comprises a bonding pad, an FPCB and a lead.

5. The loudspeaker of claim 4,

the bonding pad is positioned on the elastic sheet of the loudspeaker.

6. The loudspeaker of claim 3,

the extension surface of the conductive component is electrically communicated with the surface of the metal ring.

7. The loudspeaker of claim 1,

the resistance value of the electric connection part of the metal ring and the conductive element is not more than 2 kilo ohms.

8. The loudspeaker of claim 1, further comprising a magnetic circuit system; wherein,

the magnetic circuit system comprises a basin frame, and a magnet and a washer which are contained in the basin frame; the magnet is fixedly bonded with the basin frame; the washer covers the upper surface of the magnet.

9. The loudspeaker of claim 1,

a sound outlet is arranged on the side part of the shell;

and a damping net is attached to the position of the shell corresponding to the sound outlet hole.