KR20080054323A - Multi-function microspeaker - Google Patents

Abstract

A multi-functional vibrating microspeaker is provided to smoothly generate and transfer vibration from a vibration weight, thereby achieving various functions including strong vibrating motor vibrating a bone-conduction speaker requiring transfer of minute vibration. A multi-functional vibrating microspeaker includes a housing(22c), an elastic supporting unit(23), a vibration coil unit(29), and a coil supporting unit(29a). The housing covers a lateral surface. The elastic supporting unit includes at least one elastic bridge(23a) passing a center in a lower portion within the housing. The elastic supporting unit supports a magnet supporting unit by being joined with the magnet supporting unit through a central joining member. The vibration coil unit is installed in an outer circumference of a central magnet with a space. The coil supporting unit includes the vibration coil unit at a height of the outer circumference of the central magnet and supports the vibration coil. A lower portion of the coil supporting unit is installed and fixed to the housing. An upper portion of the coil supporting unit is vertically upward.

Description

Multi-Function Microspeaker

1 is a cross-sectional view showing a speaker having a vibration characteristic of the prior art.

Figure 2 is an exploded perspective view of a first embodiment of a vibrating microspeaker according to the present invention.

3 is a cross-sectional view of a first embodiment of a vibrating microspeaker according to the present invention;

Figure 4 is a detailed view of the coil support and the vibration coil of the vibration type microspeaker according to the present invention.

Figure 5 is a cross-sectional view showing a second embodiment of a vibrating microspeaker according to the present invention.

Figure 6 is a cross-sectional view showing a third embodiment of a vibrating microspeaker according to the present invention.

Figure 7 is a cross-sectional view showing a fourth embodiment of a vibrating microspeaker according to the present invention.

8 is a sectional view showing a fifth embodiment of a vibrating microspeaker according to the present invention;

<Description of Symbols for Main Parts of Drawings>

30,40,60: sound reproduction unit 31,41,61: sound coil unit

22, 32, 42, 52, 62: housing 23, 33, 43, 53, 63: elastic support

24, 34, 44, 54, 64: magnet support 25, 35, 45, 55: center coupling member

24a, 34a, 44a, 54a, 64a: Protective member 27, 37, 47, 57, 67: Center magnet

38,48,58,68: Outer ring magnet 29,39,49,59,69: Vibration coil part

29a, 39a, 49a, 59a, 69a: coil support part

The present invention relates to a miniature vibration microspeaker of a combination function that implements the functions of various vibration motors, bodily vibration function, attachment speaker function and bone conduction function in addition to the general speaker function.

The general microspeaker mainly refers to an acoustic microspeaker using a magnet, a magnet support fixed to a lower housing, a magnet coupled to the magnet support, a sound reproducing unit to generate a sound, and the sound to be installed in the outer periphery of the magnet. It is composed of a sound coil attached to the sound reproducing unit with the magnet in the vertical down in the regeneration unit.

Recently, a speaker using a magnet, a vibration speaker that applies the vibration generated without using the existing sound reproducing unit (dia-frame) has appeared, mainly bone bones that transmit the sound through the vibration of the human bone without transmitting the sound to the air It is also used as a tactile sound speaker that makes the speaker or vibration feel tactile (skin).

In a typical magnet acoustic speaker, an electrical acoustic signal is applied to an acoustic coil to vibrate a sound reproducing unit, which is a sheet of carbon component, to reproduce sound.

Vibration speakers using magnets generally generate vibrations using vibration coils and magnets. Such vibration generating structures may have various structures, but they are not applicable to microminiature speakers and require the creation of completely different structures. .

Recently, the existing speakers used in slim multimedia mobile communication devices such as mobile phones merely play sound sources such as music and game sounds as ringtones, but also realize various vibrations including bodily vibrations and vibration motor functions that feel the vibrations of the skin with the skin. Vibration content, bone conduction function that can recognize sound without passing through the general ear (outer ear / middle ear), and attached speaker function that vibrates the attached material to make the speaker are not provided in the conventional general acoustic microspeaker.

The acoustic speaker and the vibrating speaker using a magnet can be integrated by utilizing components such as magnets, and when the components are integrally integrated, an integrated compound vibration speaker providing both sound and vibration speaker functions in a single speaker structure. It is possible to implement.

However, adding various functions as described above to a single speaker structure causes an increase in the overall volume and a problem that cannot be applied to a small multimedia communication device such as a mobile phone. Improvement will be urgent.

In this regard, the present applicant has conducted a unique study on improving the structure of the ultra-compact composite vibration speaker so that the above-mentioned various functions are all implemented in the ultra-compact size that can be adopted in a slim mobile phone.

'형상 마그네트 지지부(14)의 중앙에 고정되며, 상기 탄성 지지부(13)상에 진동코일부(19)가 상향 입설 고정됨으로써 단층의 마그네트로 두께를 줄이고 진동력을 제고하는 것을 특징으로 하는 마이크로스피커에 대한 기술적 사상을 제시한 바 있다.The invention (10-2003-0078919) for the pre-applied 'multi-functional bidirectional microspeaker having haptic sound, bone conduction and vibration motor characteristics' by the present applicant is a result of the applicant's research as shown in Figure 1 , The sound reproducing unit 10 is located at the top of the housing 12 to reproduce the sound by the vibration of the acoustic coil unit 11, and the elastic support 13 such as an elastic bridge and a leaf spring having a ring-shaped outer edge At the bottom of the housing 12, the outer edge is attached to the side housing 12a, and the center portion of the elastic support 13 supports two magnets with a center coupling member 15 such as pins, rivets and adhesives.

'Micro-speaker is fixed to the center of the shape magnet support 14, the vibration coil portion 19 is fixed upright on the elastic support 13 to reduce the thickness and increase the vibration force with a single layer magnet I have presented the technical idea of.

'형상으로 중심 마그네트(17)의 하부 및 외륜 마그네트(18)의 상부를 지지하며, 두개의 마그네트(17)(18), 중심 결합부재(15), 탄성지지부(13), 보호부재(14a)와 함께 결합한 1개의 진동추가 된다. At this time, the magnet support 14 is coupled by the elastic support 13 and the center coupling member 15, such as rivets and pins,

Supports the lower portion of the center magnet 17 and the upper portion of the outer ring magnet 18 in shape, the two magnets (17) (18), the center coupling member (15), the elastic support (13), protective member (14a) Combined with one vibrating addition.

The magnet support 14 has two separate spaces formed between the center magnet and the outer ring magnet by allowing the outer side of the center magnet 17 and the inner side of the outer ring magnet 18 to be spaced apart from the magnet support. In the open space of the upper portion, the acoustic coil portion 11 placed downward in the lower portion of the sound reproducing portion 10 is located, and in the open space of the lower portion, the vibration coil portion 19 installed on the elastic support portion 13 is located. ) Will be located.

In addition, the housing 12 including the upper housing 12b protects the components from external shocks and prevents the loss of vibration force, and is connected to the elastic support 13 so that vibration of the vibration weight can be efficiently distributed in the housing. In addition to miniaturization as a whole, it serves to effectively transmit the vibration to the external attachment material.

However, the vibrating micro-speaker by the first application is actually implemented as a result, the vibration coil portion 16 placed between the outer ring magnet 18 and the magnet support portion 14 is attached to the vertical direction on the elastic support 13, the outer ring magnet Vibration force is generated by affecting the magnetic field formed between the cavity 18 and the magnet support 14, but is directly attached onto the elastic support 13 to interfere with the vibration of the elastic support 13 to be vibrated. In operation, the entire vibration of the center magnet 17, the inner ring magnet 18, the magnet support portion 14, the elastic support portion 13, the center coupling member 15 and the protection member 14a to vibrate as one oscillating weight This deterioration problem occurs, and the need to smoothly vibrate the vibration weight by fixing the vibration coil portion 16 directly to the housing without fixing to the vibration weight including the elastic support 13, This without touching the holy land portion 13 need to improve the method for assembling the assembly as possible has emerged. That is, the vibration coil and the magnet, which are the vibration generating elements, are separated from each other, and one of the two elements must be fixed to generate a force, and the other element must act as a vibration weight that receives the force. Belonging to, the vibration coil is also connected to the elastic support belonging to the vibration weight is connected to all in one, so the vibration is not properly implemented.

The present invention removes the factors that hinder the generation and transmission of vibration force by the internal structure of the vibrating microspeaker described above to vary the vibration intensity from one microspeaker for the bone conduction to a strong vibration for the vibration motor in one microspeaker. In order to implement, one of the vibration magnets, the center magnet, the outer ring magnet, the magnet support part, the elastic support part, the coupling member, and the protection member, allows the vibration coil support part to pass through the elastic bridge of the elastic support part so as to vibrate smoothly. By fixing the in-lower housing or the side housing, the vibrating weight can be vibrated up and down sufficiently instead of the vibrating coil part is fixed. The purpose is to provide.

The present invention to cover the side in order to achieve the technical problem; A center magnet mounted inside the housing; A magnet support part supporting the central magnet from below; It includes an elastic bridge passing through the center and the end of the elastic bridge at the lower end of the housing is fixed so that the eccentricity does not occur in the housing side and the magnet support portion by the center coupling through the magnet support portion and the center coupling member under the magnet support portion An elastic support for supporting; Vibration coil portion spaced apart from the center magnet outer edge; The lower portion is installed and fixed to the housing to avoid the elastic bridge of the elastic support portion, the upper portion is vertically up, but the vibration coil portion is formed at the height of the center magnet outer edge comprises a coil support for supporting the vibration coil portion Provides an ultra-compact vibrational microspeaker.

The housing may include one or more selected from an upper housing covering an upper portion and a lower housing covering a lower portion.

'형상으로 하여 중심 마그네트를 하부에서 지지하고 외륜 마그네트를 상부에서 고정하되; 상기 중심 마그네트의 외측부 및 외륜 마그네트의 내측부가 상기 마그네트 지지부와 이격 되도록 하여 상기 중심 마그네트와 외륜 마그네트 간에 상기 마그네트 지지부에 의해 분리되는 두 개의 공간을 형성하며, 그 중 상부가 개방된 공간에는 상기 음향코일부가 입설하고, 하부가 개방된 공간에는 상기 코일지지부 상부에 형성된 진동코일부를 입설하는 것을 특징으로 하는 초소형 복합 진동 마이크로스피커를 제공한다.According to another feature of the invention, the outer ring magnet surrounding the center magnet, the outer edge is fixed to the housing at the top of the housing and the sound reproducing portion for reproducing the acoustic vibration and the acoustic coil portion attached to the lower portion of the sound reproducing portion And attaching and fixing a coil support to a housing such that the vibration coil portion can be vertically upwardly positioned between the center magnet and the outer ring magnet; The magnet support portion 'bending the outer edge'

'Shape the center magnet at the bottom and the outer ring magnet at the top; The outer part of the center magnet and the inner part of the outer ring magnet are spaced apart from the magnet support part to form two spaces separated by the magnet support part between the center magnet and the outer ring magnet, the upper part of which is the acoustic coil In addition to the installation, the space is provided in the bottom is provided with a micro composite vibration microspeaker characterized in that the vibration coil formed in the upper portion of the coil support.

According to still another aspect of the present invention, there is provided a structure including a first outer ring magnet surrounding the center magnet, a second outer ring magnet surrounding the first outer ring magnet, an acoustic reproducing unit, and an acoustic coil unit, wherein the vibration coil unit includes: The coil support is attached to and fixed to the housing so as to be installed between the first outer ring magnet and the second outer ring magnet, wherein the magnet support supports the center magnet and the first outer ring magnet from the bottom, and the first outer ring magnet and the second outer ring magnet. The upper portion of the outer ring magnet is attached to the protective member and the acoustic coil attached downward to the lower portion of the sound reproducing unit provides a micro composite vibration microspeaker, characterized in that between the center magnet and the first outer ring magnet.

The present invention also has a structure including only the outer ring magnet surrounding the center magnet, the magnet support portion supports the lower portion of the center magnet, the center magnet and the outer ring magnet upper part covered with a protective member, the vibration coil portion is the center The coil support is formed, attached and fixed to the housing so that it can be placed up between the magnet and the outer ring magnet provides a micro composite vibration microspeaker.

According to another feature of the present invention, an outer ring magnet surrounding the center magnet, an upper magnet formed on the center magnet, an outer edge is fixed to the housing at the top of the housing to reproduce the acoustic vibration and the sound regeneration unit Further comprising a sound coil attached to the lower portion, the vibration coil portion is attached and fixed to the housing and the coil support so that the vertically and vertically placed between the center magnet and the outer ring magnet, and the center magnet and the outer ring magnet It is provided with a protective member for connecting and fixing at the top, and provides a micro composite vibration microspeaker, characterized in that the acoustic coil portion is installed in the outer periphery of the upper magnet.

Hereinafter, with reference to the drawings will be described in detail the technical idea of the present invention.

Figure 2 is an exploded perspective view of a first embodiment of a vibrating microspeaker according to the present invention, a disk-shaped upper housing, an elastic support including an elastic bridge at the lower end of the housing and the outer edge is attached to the side housing and the elastic support Miniature vibration microspeaker is characterized in that it comprises a coil support that is installed to be fixed upward on the lower housing to avoid the elastic bridge and the upper part is formed with a coil of vibration coiled on the outer edge of the center magnet.

The housing is basically a side cover structure, which is an essential component that fixes internal components and protects the product from external shocks, and serves as a central magnet, outer ring magnet, magnet support, It serves to transmit the vibration to the outside while dispersing all vibrations of the integrated portion of the center coupling member and the protection member as it is throughout the housing.

The housing 10 is a part capable of realizing various shapes such as a square pillar and a cylinder according to the design needs of the application target, the shape of the housing also affects the shape of the internal components, depending on the shape of the housing Internal components are also implemented in similar shapes with different scales.

Fig. 2 shows, as the most preferred embodiment, a cylindrical tubular side housing, a housing consisting of a disc shaped upper and lower housing, and the internal components also have a circular base shape. Therefore, the embodiment shown in FIG. 2 is only one example, and it is to be clarified that the shape of the housing and internal components is not limited thereto.

The illustrated housing can be divided into a cylindrical tubular side housing, a disc shaped upper and lower housing, and they may be integral, but in consideration of the manufacturing process, the cylindrical tubular side housing, a disc shaped upper housing and a lower housing are separated and In the state in which the side housing and the upper housing (or the lower housing) are combined, the internal components will be stacked and finally the upper housing (or the lower housing) will be structured.

In this case, when the thickness of the entire speaker needs to be further reduced, the upper and lower housings may be selectively omitted.

Hereinafter, although inevitably referring to a shape suitable for the cylindrical housing in describing the internal components in the case of adopting the cylindrical and covering the whole surface, this is only for the description of the embodiments and the rights of the present invention. I want to make it clear that the scope is not limited to the image.

The center magnet 27 mounted inside the housing 22 is a single cylindrical magnet, and is coupled with a magnet support 24 supporting the lower portion thereof.

The elastic support 23 includes an elastic bridge 23a and is fixed at the lower end of the housing so that the end side thereof is not eccentric to the side housing 22a or the lower housing 22c (by direct attachment or by a separate coupling member). Indirect attachment) and the center support member 24 is center-coupled through the center coupling member 25 such as rivets, pins or adhesives, and the magnet support member 24 is spaced apart from the lower housing 22c, and the center magnet and outer ring The magnet, the magnet support portion, the coupling member and the protective member vibrate like an integrated oscillating weight and serve to transmit the vibration of all strength to the housing as it is.

When the center coupling member 25 is a rivet or pin, etc., the elastic support 23 and the magnet support 24 may be preferably formed with a through hole 24a in the center thereof.

In this case, the vibration coil part 29 causing vibration is formed at a height that can be spaced apart from the center magnet outer edge on the coil support part 29a using the coil support part 29a as the support shaft. The lower portion 29a is installed and fixed in the side housing or the lower housing to avoid the elastic bridge 23a of the elastic support 23, and the upper portion is vertically upward in the housing, but a vibration coil part is formed at the height of the center magnet outer edge. To support the vibration coil portion.

As a feature of the assembly method of the vibration coil portion and the coil support portion, if it is to be installed in the lower housing, after combining the vibration coil portion to the upper portion of the coil support portion divided by the number of the elastic bridge first (eg bobbin coil), By passing between the elastic bridges of the elastic support portion and up and down in the lower housing (22c) to maintain the circular shape of the vibration coil portion while pursuing the stability of the vibration quality.

FIG. 3 is a cross-sectional view of the micro-compact vibration microspeaker in which the above components are coupled, by the coil support 29a provided in the lower housing 22c, avoiding the elastic bridge 23a in the installation of the coil to the single layer magnet layer. Instead of fixing the vibration coil part to the housing by installing the vibration coil part on the magnet side, the center magnet, the outer ring magnet, the magnet support part, the center coupling member, and the protection member vibrate like an integrated vibration weight and can be confirmed that the structure moves smoothly up and down. have.

4 is a partial detailed view of the coil support part and the vibration coil part of the vibration type microspeaker of the first embodiment, wherein the coil support part 29a does not interfere with the up and down vibration of the elastic support part 23. It can be seen that it is attached / fixed upward on the lower housing 22c to avoid the bridge 23a, and the magnetic force of the center magnet is affected by the magnetic force of the acoustic signal generated from the vibration coil part 29 to cause vibration. .

In the case of a small multimedia mobile communication device such as an increasingly slim mobile phone, except for the acoustic part, the diameter of the circular speaker needs to be miniaturized to 10 mm, and in this case, the elastic support part 23 adopts a simplified elastic bridge 23a. It may be advantageous to maintain the elasticity, the shape and shape of the elastic bridge 23a according to the weight and vibration force of the central magnet, the outer ring magnet, the magnet support portion, the center coupling member and the protection member, which can be referred to as vibration weight and It is necessary to adjust the number.

The elastic bridge is an elastic body, such as a leaf spring, it is preferable that the shape of the phase changes repeatedly when viewed from the side, such as a wave shape, the end side is attached and fixed to prevent the eccentricity in the side housing or the lower housing, A separate support member for fixing the elastic bridge can be used.

The present invention is intended to be applied to an ultra-compact mobile phone, the embodiment of Figure 4 is an embodiment applicable to a speaker of about 10mm in diameter, the elastic support having a ring-shaped outer edge (support member) eccentric from the outer edge of the other side This is the case when one bridge is provided by connecting so as not to occur.

The one bridge may be formed by centrally coupling two elastic bodies (eg leaf springs) extending from the outer edge of the elastic support to the center, or may be implemented by introducing one elastic body extending from the outer edge of the elastic support to the center. It may be.

Since the coil support part 29a of the embodiment has an elastic bridge 23a on which the elastic support part 23 is fixed to the side housing, the lower part of the coil support part 29a is divided so that the lower structure of the coil support part 29a does not overlap with the elastic bridge 23a. It can be attached and fixed vertically upward on the lower housing 22c in the shape, and from the portion exceeding the height of the elastic support portion 23 to a cylindrical shape as a single body, from the height reaching the inner ring of the outer ring magnet 27 The vibration coil part 29 is formed in the coil support part 29a.

However, the coil support may be attached to not only the lower housing but also the side housing. The vibration coil part is placed using the coil support, which is a feature of the present invention, without touching the elastic support part of the lower magnet. It is to be placed on the outer edge, any shape that satisfies this can be fixed to the side housing above the elastic support by introducing a coil support of the "┛┗" shape in addition to the above embodiment.

Integrated part of the center magnet, the outer ring magnet, the magnet support, the coupling member and the protection member, which can be referred to as a vibration weight by placing the vibration coil portion 29 upward on the inner race of the outer ring magnet without disturbing the vibration of the elastic support 23. It generates a vibration force to vibrate, which can freely vibrate the one-piece vibration weight instead of fixing the coil support to the lower housing to secure the vibration coil to create a structure that can maximize the vibration strength.

The coil support of the present invention allows the vibration coil portion to be formed on the center magnet outer edge while avoiding its position so as not to disturb the vibration of the elastic support portion, the lower portion is fixed to the lower housing or the side housing, and the upper portion is fixed to the center magnet outer edge. It will be characterized in that the upright and fixed in the housing to reach the bar, when fixed to the lower housing the shape of the coil support can be implemented in various ways depending on the shape of the elastic bridge of the elastic support range It should be clear that is not limited to the above embodiment.

Figure 5 is a second embodiment of the vibration microspeaker according to the present invention, which is deformable from the first embodiment.

The second embodiment is a ring-shaped outer ring magnet 38 surrounding the cylindrical center magnet 37 in the housing 32 and the sound reproducing portion 30 at the top and the acoustic nose attached to the lower portion of the sound reproducing portion. As the structure further includes a portion 31, the vibration coil portion 39 is provided with a coil support portion 39a of the elastic support portion 33 so as to be vertically vertically inserted between the center magnet 37 and the outer ring magnet 38. The elastic bridge 33a is avoided and fixed to the lower housing.

The sound reproducing unit 30 reproduces the acoustic vibration by the vibration of the acoustic coil unit 31 located on the top of the housing and attached downward to the lower portion.

'으로 하되, 상기 중심 마그네트(37) 외측부 및 외륜 마그네트(38) 내측부가 상기 마그네트 지지부(34)와 이격되도록 하여 상기 마그네트 지지부(34)를 중심으로 두 개의 분리된 공간이 형성되는바, 상부개방공간에는 상기 음향재생부에 하향 부착하는 음향코일이 입설되고, 하부개방공간에는 상기 코일지지부 상부에 형성된 진동코일부가 입설된다.In addition, the magnet support 34 is to support the center magnet from the bottom and to fix the outer ring magnet from the top of the overall shape is'

Wherein, the inner side of the center magnet (37) and the outer ring magnet 38 is separated from the magnet support 34 to form two separate spaces around the magnet support (34), the upper opening A sound coil attached downward to the sound regeneration unit is installed in the space, and a vibration coil part formed on the coil support part is installed in the lower open space.

The upper part of the center magnet and the lower part of the outer ring magnet, which are not covered by the magnet support part 34, are covered with the protection member 34a to prevent the loss of magnetic force.

The protection member 34a is attached to the magnet in the form of a plate using a material such as pure iron to prevent magnetic loss and to induce electromagnetic force to be discharged in a desired direction.

'형상의 마그네트 지지부(34)를 이용하여 마그네트를 지지하면서도 마그네트 사이에 상하 양방향으로 입설되는 음향코일과 진동코일을 수용할 수 있는 공간을 제공하여 음향 및 진동 양방향 스피커를 구현하는 것을 특징으로 하며, 마그네트 지지부는 연결된 마그네트 부분과 같은 극성으로 전환되어 바로 옆에 위치한 마그네트와 반대 극성을 나타내어 마그네트 지 지부와 마그네트 사이에 강한 자기장을 형성하여 진동코일부와 형성되는 진동력을 극대화 시킨다. As such, the second embodiment is

'As the shape of the magnet support portion 34 to support the magnet while providing a space for accommodating the acoustic coil and the vibration coil placed in the vertical direction between the magnet to implement the acoustic and vibration two-way speaker, The magnet support part is converted to the same polarity as the connected magnet part to show the opposite polarity to the magnet next to it, thereby forming a strong magnetic field between the magnet branch part and the magnet to maximize the vibration force formed with the vibration coil part.

Reference numerals 31, 35, and 33 denote centers of the acoustic coil unit 31 attached to the sound reproducing unit, an elastic support unit 33 on which the outer edge side is fixed at the lowermost side in the housing, and the elastic support unit 33 and the magnet support unit. The center coupling member 35 to be coupled.

FIG. 6 is a third embodiment implementing the vibrating microspeaker according to the present invention, and descriptions of parts overlapping with the foregoing embodiments can be reduced.

The third embodiment, like the second embodiment, is a bidirectional speaker that performs all the functions of an acoustic speaker, a vibrating speaker, and a vibration motor. The third embodiment is different from the second embodiment in that it further includes one outer ring magnet. The outer diameter is somewhat larger than the example and the second embodiment.

This includes a cylindrical center magnet 47, a first outer ring magnet 48 surrounding the center magnet 47, and a second outer ring magnet 48a surrounding the first outer ring magnet 48 to participate in vibration. Increase the number of magnets has the effect of strengthening the vibration force.

At this time, the position of the coil is placed downward from the sound regeneration unit 40 between the center magnet 47 and the first outer ring magnet 48 in the case of the acoustic coil unit 41, and the vibration coil unit 49 is the second embodiment. Similarly, it is installed vertically upward from the lower housing 42c by the coil support 49a, and enters between the first outer ring magnet 48 and the second outer ring magnet 48a to cause vibration.

In addition, the magnet support 44 simultaneously supports the lower portion of the first outer ring magnet 48 as well as the center magnet 47, and the plate-shaped protective member 44a using a material such as pure iron is disposed above the center magnet 47. The cover alone is connected to cover the upper portion of the first outer ring magnet 48, the upper portion of the second outer ring magnet 48a, the outer portion of the second outer ring magnet, and the lower portion of the second outer ring magnet to fix the position of the magnet and minimize the loss of magnetic force. do.

The third embodiment is a model that can be applied to a product that needs to further enhance vibration performance even if the diameter is increased, and is an embodiment for a two-way speaker of sound and vibration.

Reference numerals 42, 43, and 45 are the housing 42, the elastic support 43 in which the outer edge is fixed to the lowermost part in the housing, and the center coupling member 35 for center coupling the elastic support 43 and the magnet support. .

FIG. 7 is a fourth embodiment implementing the vibrating microspeaker according to the present invention, and descriptions thereof may be omitted for portions overlapping with the foregoing description.

The fourth embodiment is a vibrating unidirectional speaker without the sound speaker function, and it can be seen that the sound reproducing unit and the acoustic coil unit, which are seen in the second and third embodiments, are omitted, and the center magnet is the same as in the second embodiment. It is provided with a 57 and the outer ring magnet 58 and is fixed to maintain the vibration by the elastic support 53 and the magnet support 54, the upper portion of the center magnet 57 and the outer ring magnet (58) The vibration coil part 59 covers the center magnet 57 and the outer ring magnet 58 by a coil support part 59a which is covered and connected to the protective member 54a and is attached / fixed vertically upwardly to the lower housing 52c. In between.

The fourth embodiment is a unidirectional vibration type speaker that can omit the function of the acoustic speaker and perform the functions of the vibration speaker and the vibration motor, and has a structure that can dramatically reduce the thickness of the speaker.

Reference numerals 52 and 55 are center coupling members 55 for center coupling the housing 52 and the elastic support 53 and the magnet support.

FIG. 8 is a fifth embodiment implementing the vibrating microspeaker according to the present invention, and descriptions thereof may be omitted for portions overlapping with the foregoing description.

The fifth embodiment is a vibrating bidirectional speaker with an acoustic speaker function, and has a structural feature so that the lower housing can be omitted, thereby further reducing the thickness of the speaker.

In the fifth embodiment, the outer ring magnet 68 surrounds the center magnet 67, the upper magnet 67a formed on the center magnet, and the outer edge of the uppermost part of the housing is fixed to the side housing to reproduce acoustic vibration. It further includes a reproducing unit 60 and an acoustic coil unit 61 attached downward to the lower portion of the sound reproducing unit.

The coil support 69a is attached and fixed to the side housing so that the vibration coil part can be vertically upwardly positioned between the center magnet 67 and the outer ring magnet 68, and the center magnet 67 and the outer ring magnet ( 68 is provided with a protection member 64a for connecting and fixing the upper portion, and the acoustic coil portion 61 is installed in the outer periphery of the upper magnet 67a.

At this time, the protection member 64a for connecting and fixing the center magnet 67 and the outer ring magnet 68 from the upper portion has an effect of increasing its thickness in a range that does not prevent downward entry of the acoustic coil portion 61, thereby increasing the feeling of vibration. Can be given.

In view of the importance of the structure of the present invention, the above description focuses on the arrangement of the final components, and does not mention a specific manufacturing process or method. In the same case, it will belong to the scope of the present invention.

According to the present invention, the central magnet, the outer ring magnet, the magnet support portion, the coupling member and the protection member, which can be referred to as one oscillation weight, by introducing a coil support portion that enables vertical positioning of the coil portion without disturbing the vibration of the elastic support portion. It is possible to faithfully realize the function as a bone conduction speaker requiring the transmission of fine vibrations from a vibration motor requiring high-intensity vibration by smoothly generating and transmitting vibration of the integrated part of the device.

Therefore, when the present invention is applied to a small multimedia communication device such as a mobile phone by modifying the other structure around the integrated magnet structure, one micro speaker can perform all the functions of an acoustic speaker, a bone conduction speaker, and a vibration motor. One unit can provide significant economic and space savings, replacing "speaker + receiver (call speaker) + vibration motor".

In addition, since the receiver is replaced with a bone conduction speaker, it provides bone conduction services such as hearing loss aid, eardrum protection, noise environment call, privacy protection, and emergency safety call.In the case of a vibration motor, frequency and volume (output ) Enables the vibration content service to freely adjust the strength of vibration.

In addition, the micro-speaker according to the present invention can be attached to the speaker service to the object to vibrate and emit sound simply by attaching the bar, when the above effects are combined, the present invention is a breakthrough technology that will change the market of the speaker market I expect to be active.

Claims (11)

A housing covering the side face; A center magnet mounted inside the housing; A magnet support portion supporting the central magnet at a lower portion thereof; An elastic support including a resilient bridge passing through the center at the lower end of the housing, and the end side of the resilient bridge is fixed so as not to cause an eccentricity in the housing, and coupled to the magnet support through a center coupling member to support the magnet support below; Vibration coil portion spaced apart from the center magnet outer edge; A lower portion is installed and fixed in a housing to avoid the elastic bridge of the elastic support portion, and an upper portion thereof is vertically upward but a coil support portion is formed at a height of the center magnet outer edge to support the vibration coil portion. Miniature compound vibration microspeakers. The vibrating microspeaker according to claim 1, wherein the housing selectively includes at least one of an upper housing covering an upper portion and a lower housing covering the lower portion. The method according to claim 1 or 2, An outer ring magnet surrounding the center magnet and an outer ring at the top thereof, the outer ring being fixed to the housing to reproduce sound vibrations, and a lower portion of the outer ring magnet; Attaching and fixing a coil support to a housing so that the vibration coil portion can be vertically upwardly positioned between the center magnet and the outer ring magnet; The magnet support is'

It is formed in a shape to support the center magnet from the bottom and to fix the outer ring magnet from the top so that the center magnet outer portion and the outer ring magnet inner portion can be spaced apart from the magnet support portion separated by the magnet support portion between the center magnet and the outer ring magnet Two spaces are formed, and in the upper open space, a sound coil is installed in the lower part of the sound reproducing unit and is vertically downward from the sound reproducing unit, and in the lower open space, a vibration coil part is formed in the upper part of the coil support. Ultra-compact complex vibration microspeakers characterized in that. The method according to claim 1 or 2, A first outer ring magnet surrounding the center magnet, a second outer ring magnet surrounding the first outer ring magnet, an outer edge at the top of the housing is fixed to the housing for reproducing acoustic vibrations, and a lower portion below the sound reproducing unit It further comprises an acoustic coil portion to be attached; Forming and attaching a coil support to a housing such that the vibration coil portion is vertically upwardly interposed between the first outer ring magnet and the second outer ring magnet; The magnet support portion supports the center magnet and the first outer ring magnet from the bottom, and connects the upper portion of the first outer ring magnet, the upper portion of the second outer ring magnet, the outer portion of the second outer ring magnet and the lower portion of the second outer ring magnet by attaching one protective member. ; The micro coil according to claim 1, wherein the acoustic coil attached to the lower part of the sound reproducing unit and vertically downward from the sound reproducing unit is placed between the center magnet and the first outer ring magnet. According to claim 1 or 2, further comprising an outer ring magnet surrounding the center magnet, wherein the magnet support portion supports the lower portion of the center magnet, cover the center magnet and the outer ring magnet upper part with a protective member and connected And the coil support is formed and attached to the housing so that the vibration coil part can be vertically upwardly positioned between the center magnet and the outer ring magnet. According to claim 1 or claim 2, wherein the outer ring magnet surrounding the center magnet, the upper magnet formed on the center magnet, the outer edge is fixed to the housing at the top of the housing and the sound reproduction unit for reproducing the acoustic vibration and the sound A sound coil part attached downward to the regeneration part; Attaching and fixing a coil support to a housing so that the vibration coil portion can be vertically upwardly positioned between the center magnet and the outer ring magnet; A protection member for connecting and fixing the center magnet and the outer ring magnet from the top; Miniature vibration vibration microspeaker, characterized in that the acoustic coil portion is installed in the outer edge of the upper magnet. The microcompact vibration microspeaker according to claim 3, wherein the upper portion of the center magnet and the lower portion of the outer ring magnet are covered with a protective member. 5. The microcompact vibration microspeaker according to claim 4, wherein the center magnet upper part is covered with a separate protective member. 6. The microcompact vibration microspeaker according to claim 5, wherein the outer ring magnet is covered with a separate protective member. The micro-compound vibration microspeaker according to claim 6, wherein the protection member connecting the upper portion of the center magnet and the outer ring magnet adjusts the weight of the entire speaker and the efficiency of the sound reproducing unit by changing its shape. The microcombination microspeaker according to claim 1, wherein the housing may be selectively integrally formed among the elastic support and the coil support.

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