KR102133523B1 - Flat type speaker with integrated suspension - Google Patents

Abstract

The present invention relates to a speaker, which has a structurally slim shape, minimizes a risk of being disconnected even when a damper vibrates, and at the same time, facilitates not only the connection with the voice coil, but also the connection between terminals and sockets. To this end, the present invention includes: a frame unit that forms an outer shape of the speaker; a magnetic field forming unit provided in the frame unit to form a magnetic field; and a vibrating unit having a voice coil unit and a vibration plate that generate sound by being configured to vibrate in connection with the magnetic field forming unit, wherein the frame unit is integrally provided with a suspension that induces the vibration of the vibration unit and is provided with a terminal unit integrally provided for electrical connection with the voice coil unit, and the terminal unit is connected to the frame unit so as to vibrate and is independently connected to the suspension to vibrate.

Description

Flat type speaker with integrated suspension{FLAT TYPE SPEAKER WITH INTEGRATED SUSPENSION}

The present invention relates to a speaker, and more specifically, while having a structurally slim shape, while minimizing the risk of being broken even by the vibration operation of the damper, as well as connection with a voice coil, as well as easy connection between terminals and terminals. And it relates to a flat-panel speaker integrated with a suspension terminal is integrally provided in the frame.

In general, a speaker converts a small wave into the air by converting the movement of a voice coil into vibration of a diaphragm when a current flows through the voice coil in a magnetic field using the built-in magnet, using an electric signal input from an electric signal source such as an amplifier. Refers to an acoustic device that emits sound by generating it. That is, the speaker is a device that generates sound waves by vibrating the diaphragm with an electrical signal.

Recently, as devices such as a display on which a speaker is mounted become slim, the speaker, which is a component used therein, is also required to be miniaturized and slim.

Conventionally, for the miniaturization of the speaker, while securing a space for vibration of the damper (suspension), the frame (speaker) is made to be slimmed, and the integrated frame is provided in Korean Patent Application No. 10-2012-0106520. It has been proposed as an equipped speaker.

In the prior art document, a suspension made of metal is provided integrally with the frame through a process such as injection molding, thereby shortening the production process and enabling structural miniaturization. That is, in the prior art literature, for electrical connection with the voice coil, the suspension is made of a metal that can be energized, while the suspension is connected to the outside, so that the structure acts as a terminal or a terminal together with the role of a vibration unit.

However, although a metal suspension-integrated frame was produced as described above, the existing metal suspension generates a beeping sound due to vibration of the vibration connecting portion when the speaker is operated, and vibrates due to repeated vibration due to limitations of the metal material. Vulnerability that disconnects parts such as wealth and terminal parts has been revealed as a problem.

In addition, even when a damper is formed of a plastic material instead of a metal material, there is still a problem that the plastic material may be vulnerable due to limitations of the deformation or short circuit of the vibration connecting portion.

On the other hand, in the case where a damper is formed of a plastic material instead of a metal material, in order to connect and fix the voice coil to the plastic damper, a ring-shaped metal plate material is required as a separate coil attachment plate. It is difficult to manufacture the furnace, and this causes a problem that it is rather difficult to shorten the height of the product.

Moreover, in the case of a speaker using a plurality of coils rather than one coil, the soldering area is increased, and the minimum height of the coil required for soldering is required, which further leads to the miniaturization of the product, that is, the difficulty of shortening the height. Is done.

In addition, since the residual line or connecting line of the voice coil for connecting to the damper must also be located within a certain height of the voice coil, there is a limit to shortening the height at which the residual line or connecting line is located, and consequently the overall height reduction is reduced. Have difficulties.

In the end, it is required to manufacture a speaker that has a structurally slim shape and minimizes the risk of being broken even by the vibration of the damper, and also facilitates the connection between the terminal and terminals as well as the connection with the voice coil. to be.

KR 10-1410393 B1

The present invention was invented to solve the above problems, the speaker of the present invention, while having a structurally slim shape, while minimizing the risk of breakage even in the vibration operation of the damper, at the same time, as well as the connection with the voice coil The purpose of the terminal and the connection between terminals is also to provide an easy speaker.

In order to solve the above problems, as a speaker that generates sound in accordance with an electrical signal, the frame portion constituting the outer shape of the speaker, a magnetic field forming portion provided in the frame portion to form a magnetic field, and to vibrate in connection with the magnetic field forming portion It comprises a voice coil unit for generating sound and a vibration unit having a vibration plate, the frame unit is integrally provided with a suspension for inducing vibration of the vibration unit, and the frame unit is integrally provided for electrical connection with the voice coil unit. A terminal portion is provided, and the terminal portion is vibrably connected to the frame portion, and is characterized by vibrating by being independently connected to the suspension.

In addition, the suspension includes a vibration connecting portion that is vibratingly connected from the frame portion, and the terminal portion includes a voice coil portion connecting portion that securely connects the voice coil portion, and a terminal connection portion for connecting the voice coil portion connecting portion to the frame portion, and the terminal connecting portion. And the vibrating connection can be arranged independently.

Meanwhile, the vibration connection portion may be formed in a vertical curved damper shape, and the terminal connection portion may be formed in a horizontal curved damper shape.

In addition, the frame portion and the suspension are made of synthetic resin, and can be integrally molded by injection molding. In addition, the synthetic resin may include a nylon material, the terminal portion may be made of metal.

Moreover, the reinforcing plate may be provided with an interference avoiding portion to provide a space according to the width of the vibration when the suspension is vertically vibrated.

In addition, the magnetic field forming unit and the voice coil unit are provided in a plurality to constitute a plurality of speaker units, but the diaphragm may be configured as a single unit connecting the plurality of speaker units.

The speaker of the present invention can provide a speaker having a structurally slim shape, while minimizing the risk of being broken even by the vibration operation of the damper, and at the same time connecting not only to the voice coil but also between terminals and terminals.

In addition, according to the present invention, as a plurality of speaker units are configured, it is possible to reduce the vibration width for power applied to each unit. As a result, since the vibration width of the vibrating unit can be reduced compared to the same conventional configuration, the minimum separation space required for vibration can be made smaller, which is effective in reducing the overall thickness of the speaker.

In addition, the reinforcing plate of the frame is provided with an interference avoiding portion, and provides sufficient space for the vibration of the vibrating portion, so that it functions to prevent collisions between components. In other words, for vibration movement, by preventing the vibration connecting portion acting as a suspension from colliding with the reinforcing plate in advance, it is possible to minimize the occurrence of deformation or noise due to collision, and to prevent speaker malfunction due to interference.

Moreover, the interference avoiding portion not only prevents collision between components, but also minimizes the thickness between the frame and the overall thickness of the speaker by minimizing the distance between the vibration connecting portion and the reinforcing plate due to securing space.

In addition, the interference avoiding portion can provide a space required for movement without increasing the thickness, as an escape area, which is a free space, is provided for a portion where movement occurs during vibration of the speaker, so that the thickness of the speaker can be further reduced. do.

On the other hand, the connection terminal of the present invention is provided in a separate configuration without interference with the vibration connection portion that acts as a suspension, thereby preventing direct linkage to the vibration action of the vibration connection portion. That is, as the connection terminal is formed as a separate connection portion to minimize vibration of the terminal itself, it is possible to reduce the risk of the connection terminal shorting due to frequent vibrations of the vibration connection portion acting as a suspension.

In other words, in the case of a flat panel speaker in which the existing metal suspension is integrated in the frame, the metal suspension acts as a vibrating unit and is used as a terminal terminal, so there is a risk of short circuit due to movement, while the speaker of the present invention The vibration connection part of the synthetic resin material and the metal connection terminal exist as each connection part, so that the movement of the connection terminal due to the vibration of the vibration connection part can be reduced, which shortens the risk of short circuit of the terminal.

In addition to this, the speaker of the present invention can reduce noise caused by vibration of the connection terminal made of metal by minimizing the movement of the connection terminal with respect to vibration of the vibration connection portion due to the structure in which the vibration connection portion and the connection terminal are independently separated. do.

In addition, the speaker of the present invention is made of a synthetic resin, preferably nylon, of the material of the vibrating connector, so that it can withstand frequent vibrations of the vibrating connector due to its flexible characteristics compared to conventional plastics, thereby minimizing the risk of breaking. .

In addition, the speaker of the present invention can provide a speaker that can have different characteristics without structurally changing the speaker frame while minimizing the risk of being broken even by the vibration operation of the damper. Thus, the speaker of the present invention, since it is not necessary to separately manufacture a mold for forming a speaker frame for each speaker characteristic, it is possible to reduce the initial cost of the mold production.

1 is a perspective view schematically showing a flat speaker with integrated suspension according to an embodiment of the present invention.
2 is a partially exploded perspective view schematically showing an inner configuration by separating a diaphragm in a flat speaker having an integrated suspension according to an embodiment of the present invention.
3 is a perspective view showing a bottom surface of a flat speaker with an integrated suspension according to an embodiment of the present invention, a view schematically showing an inner configuration by separating the sealing member.
4 is an exploded perspective view of a flat speaker with integrated suspension according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of a flat speaker with an integrated suspension according to an embodiment of the present invention, and is a cross-sectional view taken along line A-A' in FIG. 1.
6 is a perspective view schematically showing a speaker comprising two speaker units as a flat speaker with integrated suspension according to a second embodiment of the present invention.
7 is a perspective view showing a state in which the diaphragm of the flat speaker with integrated suspension according to the second embodiment of the present invention is separated.
8 is an exploded perspective view of a flat speaker with an integrated suspension according to a second embodiment of the present invention.
9 is a front view of the flat speaker of the suspension according to the first embodiment (a) and the second embodiment (b) of the present invention as viewed from the front.
FIG. 10 is a graph comparing the rate of change of characteristics of speakers composed of frames by glass fiber content according to each experimental example of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

This embodiment in the present specification is to provide a complete disclosure of the present invention, and to fully inform the scope of the invention to those skilled in the art to which the present invention pertains. And the present invention is only defined by the scope of the claims. Thus, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described in order to avoid obscuring the present invention.

The same reference numerals refer to the same components throughout the specification. In addition, the terms (mentioned) used in this specification are for describing the embodiments and are not intended to limit the present invention. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. Also, components and actions recited as “includes (or is provided with)” do not exclude the presence or addition of one or more other components and actions.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless defined.

Hereinafter, the technical features of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view schematically showing a flat speaker with integrated suspension according to an embodiment of the present invention. 2 is a partially exploded perspective view schematically showing an inner configuration by separating a diaphragm in a flat speaker having an integrated suspension according to an embodiment of the present invention. 3 is a perspective view showing a bottom surface of a flat speaker with an integrated suspension according to an embodiment of the present invention, a view schematically showing the inner configuration by separating the sealing member. 4 is an exploded perspective view of a flat speaker with integrated suspension according to an embodiment of the present invention. FIG. 5 is a cross-sectional view of a flat speaker with an integrated suspension according to an embodiment of the present invention, and is a cross-sectional view taken along line A-A' in FIG. 1. 6 is a perspective view schematically showing a speaker comprising two speaker units as a flat speaker with integrated suspension according to a second embodiment of the present invention. 7 is a perspective view showing a state in which the diaphragm of the flat speaker with integrated suspension according to the second embodiment of the present invention is separated. 8 is an exploded perspective view of a flat speaker with an integrated suspension according to a second embodiment of the present invention. 9 is a front view of the flat speaker of the suspension according to the first embodiment (a) and the second embodiment (b) of the present invention as viewed from the front.

The flat speaker 10 in which the suspension according to the first embodiment of the present invention is integrated is provided with a frame 100 so as to form the outer shape of the speaker, as shown in the embodiments shown in FIGS. 1 to 5, and the frame 100 The components of the speaker may be provided.

For example, as shown in the illustrated embodiment, the speaker according to the present invention may be provided with a magnetic field forming unit 200 and a vibration unit 300 in the frame 100, and thus operate to generate sound by an input electric signal. can do.

As a component of such a speaker, the magnetic field forming part 200 includes a yoke 210 and a magnet 220, and the vibration part 300 is a voice coil part 310 composed of a voice coil 311 and a coil bobbin 312. And a diaphragm 320. In the following description, elements not specifically mentioned may be provided in a general configuration that is commonly used.

On the other hand, in general, when a power of 10W is applied in a state in which one speaker unit is mounted, the width of the normal vibration of the vibrating unit 300 moves about 2 mm in the vertical direction (4 mm in total) and vibrates.

Here, when the size of the applied power decreases, the vibration width also decreases. When 5W power is applied, the vibration width vibrates by about 1mm in the vertical direction, and when 2.5W power is applied, about 0.5mm. It vibrates strongly.

Accordingly, the present invention can provide a structure having a plurality of speaker units U in one frame 100 in order to reduce the size of the vibration width of the speaker while maintaining the intensity of the input current. That is, by providing a plurality of speaker units, it is possible to have the effect of reducing the vibration width due to the current branch to each speaker.

To this end, the speaker according to the embodiment of the present invention includes a plurality of speaker units U, and as illustrated in FIG. 2, a total of four speaker units U may be provided.

Here, the number of speaker units may be provided in two or three, or more, but it is a more preferable configuration to have four units in a flat speaker.

That is, in the speaker field, in general, it is advantageous to slim by reducing the thickness (height) rather than reducing the size of the overall width (width length) of the speaker, and for this purpose, it is difficult to reduce the thickness. By branching, it is possible to further reduce the vibration width by reducing the amount of power transmitted to each unit compared to the two units, and reducing the vibration width means that the required free space during vibration can be minimized. However, when a large number of 6 or 8 speaker units is provided, the size of the speaker itself is significantly increased, so that the number of units is composed of 4 in terms of proper efficiency.

The configuration of such a speaker is as follows.

First, the frame 100 is to embed the components of the speaker, and one side may be formed of an open-shaped member, and according to an embodiment, the speaker of the present invention is a flat speaker as shown in the figure. It is provided to have a square or rectangular shape to be provided.

In this embodiment, the frame 100 may be provided as a square member, and the size of the frame may be set to approximately 20 mm to 120 mm in length of each side, and more preferably, each side is about 85 to 95 mm. It can be made into a small speaker. In addition, the thickness of the frame 100 can be set to about 2mm to 4mm, and this can be provided as a slim speaker. In this case, as will be described later, the speaker according to the second embodiment of the present invention describes that the speaker unit is composed of two. The length of the long side of the frame 100' shown in the second embodiment is the frame 100 of the first embodiment ), the length of the short side is about half that, and the thickness can be set to about 4 mm to 7 mm, so that even if the same speaker unit as the frame 100 of the first embodiment is used, the thickness difference occurs. Can. The difference in thickness is determined by forming different vibration widths compared to the amount of power applied equally to the speaker composed of four and the speaker composed of two when using a plurality of speaker units. That is, even if the same amount of power is supplied, the size of the power that is branched to each unit and transmitted is different, so that a speaker composed of four speaker units can have a significantly reduced thickness compared to a speaker composed of two speaker units.

The frame 100 may be provided with a suspension S as a damper for stably inducing the vibration of the vibrating unit 300 and attenuating the amplitude of the vibration. In general, the suspension is interposed between the upper and lower frames. In the embodiment of the present invention, the suspension (S) consists of a structure formed integrally with the frame 100 by injection molding. That is, the suspension S is included as part of the frame 100 through integration.

Here, according to an embodiment of the present invention, the frame 100 including the suspension S may be made of synthetic resin.

At this time, looking at the frame material of a typical speaker, polyethylene, polystyrene, polypropylene, polyvinyl chloride, polyolefin, polyvinylidene chloride, polyvinyl alcohol, EVA, polyurethane, polymethylpentene, polymethylmethacryl as a general-purpose polymer synthetic resin Late, cellulose, etc. can be used, and polyester, polyacetal, polyacrylonitrile, polycarbonate, COP, polyether sulfone, polyarylate, etc. are used as a flame retardant polymer synthetic resin.

However, the above-mentioned general plastic is suitable for use as a speaker frame, but has a disadvantage in that it is vulnerable in durability to be used in a suspension S, which is a damper that vibrates up and down together with the vibrating unit 300.

Thus, in the embodiment of the present invention, the frame 100 is formed by integrally forming the suspension S, and in order to reinforce the suspension S susceptible to frequent vibrations, these materials are made of a material stronger than the existing plastic. I wanted to. That is, in the embodiment of the present invention, by selecting a material having excellent mechanical and heat resistance properties, and having excellent shock and weather resistance, so that the suspension (S) functioning as a damper has rigidity against frequent vibration with the vibration unit 300 It was made to produce.

To this end, in the present invention, the material of the frame 100 is selected from polyamide, that is, nylon resin, and glass fiber is added to the resin as necessary to form a resin mixture, thereby providing superior material properties. It was produced. Polyamide has low density and friction coefficient, high abrasion resistance, and non-corrosive properties, good elasticity and high strength. That is, the present invention was intended to achieve a speaker that is resistant to frequent vibrations of the suspension (S) by manufacturing the frame 100 using a glass fiber reinforced polyamide resin composition. The material of such a frame will be described later. That is, according to the present invention, as the nylon material is used as the material of the frame 100, it is possible to provide a speaker that is resistant to frequent vibrations of the suspension S.

Meanwhile, the frame 100 may include an outer housing 110 formed along the circumference of the speaker, and an inner housing 120 provided inside the speaker and vibrated together with the vibration unit 300. The inner housing 120 of the frame 100 acts as a suspension (S).

The outer housing 110 of the frame 100 is formed to form the outer appearance of the speaker, and is provided to have rigidity with a predetermined thickness to support the speaker as a whole.

In the outer housing 100, an edge portion of the diaphragm 320 is seated on the upper surface, and a bottom plate is formed on the lower surface. The yoke 210 of the magnetic field forming unit 200 is seated on the bottom plate.

Here, as shown in the drawing, the outer housing 100 may be formed of an outer circumferential frame having an open bottom plate, and the reinforcing plate 150 is coupled to the bottom surface in place of the bottom plate. As the reinforcing plate 150 will be described later, as the speaker frame 100 of the present invention is made of a nylon material that is somewhat softer than a general synthetic resin series, it is provided to reinforce the bottom surface to prevent the appearance from bending. , The yoke 210 of the magnetic field forming unit 200 may be seated on the upper surface of the reinforcing plate 150.

The inner housing 120 of the frame 100 is positioned to be spaced apart inside the circumference of the outer housing 110 so that the vibration unit 300 can be mounted. The inner housing 120 is provided in a square frame shape, and the inner circumference of the diaphragm 320 is seated on the upper surface thereof. At this time, as will be described later, the voice coil part 310 is attached and fixed to the lower surface of the diaphragm 320, and the inner housing 120 supports the voice coil part 310 coupled thereto by supporting the diaphragm 320.

Here, the speaker according to an embodiment of the present invention, the vibration unit 300 is composed of a plurality of voice coil unit 310 and one vibration plate 320 is coupled to the inner housing 120, a plurality of speaker units It consists of a structure that shares a single diaphragm.

On the other hand, the inner housing 120 may be vibrably connected to the outer housing 110 to act as the suspension (S) of the speaker, and the vibration or amplitude of the vibration unit 300 connected to the body as the vibration operation It can be induced to attenuate.

To this end, the frame 100 connects the outer housing 110 and the inner housing 120 to each other, and at the same time supports the vibration of the speaker, that is, the braking and the correct position for the up and down linear motion on the flat plate to smooth the linear motion. As an induction damper, a vibration connection unit 130 may be provided.

The vibration connecting portion 130 extends in the outer circumferential direction along the circumference of the inner housing 120 and is connected to the outer housing 110. That is, in the exemplary embodiment of the present invention, since the housings are provided in a forward shape, the vibration connecting unit 130 may be configured to connect each side along the circumference of both housings, and each side of each corner portion of the housing A plurality of spaced apart connection members are provided to connect both housings. Alternatively, the vibration connecting portion 130 may be configured to connect a corner portion of the inner housing 120 and the outer housing 110.

Here, the vibration connecting portion 130 is formed in a predetermined curved shape along a vertical direction or a horizontal direction perpendicular to the vibration direction of the speaker so as to act as a damper to move to enable its own vibration, and consequently the inner side. The vertical movement of the housing 120 is induced. This can be commonly referred to as a vertical damper or a horizontal damper. In one embodiment of the present invention shows that provided as a vertical damper, and thus the vibration connecting portion 130 is formed in a predetermined curved shape in the vertical direction as shown in FIG. 2.

That is, according to the present invention, the vibration connecting portion 130 extends from the circumferential side of the inner housing 120 and is bent in a downward direction to form a concave portion 130a in a recessed shape, and upward again from the concave portion 130a The bent convex portion 130b is extended to be connected to the outer housing 110.

Accordingly, the frame 100 of the present invention is provided so that the inner housing 120 is connected to the outer housing 110 by the vibration connecting portion 130, so as to be able to vibrate up and down, the inner housing 120 and vibration The configuration of the connecting portion 130 can act as the suspension (S) of the speaker. That is, the configuration of the inner housing 120 and the vibration connecting portion 130 acts as a suspension of the speaker frame 100, and this suspension is formed integrally with the frame 100 to be vibrating up and down.

In addition, the frame 100 may be provided with terminal portions 140 for electrically connecting speaker components to each other or to the outside.

The terminal unit 140 is an element that enables electrical connection with a speaker configuration element, and is formed of a metal material, for example, may be provided in the form of a terminal made of a material such as copper.

The terminal unit 140 includes an outer peripheral terminal 141, an inner peripheral terminal 142, and a connection terminal 143.

The outer circumferential terminal 141 is a terminal interposed around the outer housing 110 and provided for connection with an external power source, and a connection terminal 141a may be formed to protrude outward in each corner. The connection terminal 141a of the outer circumferential terminal 141 is configured to allow electrical connection with the outside by being exposed on the exterior through the open groove 100a formed in the frame 100.

The inner circumferential terminal 142 is a terminal located inside the circumference of the inner housing 120 and connected to a component of the speaker, and is connected to the inner housing 120 by a connecting terminal 143.

The vibrating plate 320 is seated on the upper surface of the inner circumferential terminal 142, and a voice coil part 310 is installed on the lower surface thereof.

That is, the inner circumferential side terminal 142 is a voice coil part 310 made of a voice coil 311 and a coil bobbin 312 attached and fixed to the lower surface thereof by an adhesive or the like, and may be formed in a corresponding shape so that they can be connected. .

For example, the inner circumferential terminal 142 may have a circular shape corresponding to the voice coil part 310, which is a ring-shaped member, and a plurality of ring-shaped members are configured as a component of the speaker of the present invention is composed of a plurality of speaker units. It is provided as a connected terminal.

Thus, the inner circumferential terminal 142, as shown, four ring-shaped members for each voice coil portion 310 are disposed along the inner circumference of the inner housing 120 to act as a voice coil portion fixing portion, and these are partially It is connected, and the corner portion passes through the inner housing 120 through the connection terminal 143 and is connected to the outer peripheral terminal 141.

The connection terminal 143 is a terminal provided to connect the outer peripheral terminal 141 and the inner peripheral terminal 142 and extends from the outer peripheral terminal 141 and is connected to the inner peripheral terminal 142.

Here, the connection terminal 143 extends outward from each corner portion of the inner circumferential terminal 142 toward the corner portion of the outer circumferential terminal 141, and has a predetermined curved shape in the horizontal direction along the square shape of the frame. It extends a certain length and is connected to the outer peripheral terminal 141. That is, the inner peripheral terminal 142 vibrates up and down due to the vibrational movement of the suspension S and the vibrating unit 300, and the connection terminal 143 is capable of self-up and down vibration due to the horizontal curved shape. By moving so as to correspond to the vertical vibration of the inner circumferential terminal 142, one side is fixed to the outer circumferential terminal 141 to induce stable vibration of the inner circumferential terminal 142.

On the other hand, the terminal portion 140 is preferably formed integrally with the frame 100 using injection molding. That is, the outer circumferential terminal 141 of the terminal unit 140 is disposed at a position interposed in the outer housing 110, and the inner circumferential terminal 142 and the connecting terminal 143 are connected to the inner housing 120. In the state disposed in the intervening position, as the housings are molded by injection molding, the frame 100 may be integrally molded and manufactured. Accordingly, the terminal portion 140 serves as a connection terminal portion for connecting the outer peripheral terminal 141 to the outside, and the inner peripheral terminal 142 acts as a voice coil connection portion.

At this time, the frame 100 may be formed in a partially open shape in a groove or a perforated shape for each connection portion of the terminal portion 140, and due to the partially opened shape, the outer peripheral terminal 141 or the inner peripheral terminal 142 guides electrical contact with this other element.

That is, referring to FIGS. 3 and 4, the rear end of the frame 100 is provided with an opening groove 100a formed to be opened at each corner, and a connection terminal 141a is provided at the corner of the outer peripheral terminal 141. It may be formed, the connection terminal 141a is configured to enable electrical connection by being exposed to the outside through the open groove (100a).

Thus, the speaker of the present invention is electrically connected to the outside by a connection terminal 141a provided on one side of the outer circumferential terminal 141, and through a configuration in which the voice coil unit 310 is connected to the inner circumferential terminal 142, It will function to enable electrical connection.

As a result, the terminal unit 140 is formed integrally with the frame 100, but enables electrical connection by the open groove.

In this way, the terminal portion 140 may be formed integrally with the frame 100 by molding in a form interposed in the frame 100 by injection molding or the like, and the terminal portion 140 may be formed in the frame 100 according to an integral manufacturing process. By doing so, the process of being provided in the frame 100 in the assembly process of the speaker may be omitted, thereby reducing the production process of the speaker, thereby reducing production time and cost.

On the other hand, the connection terminal 143 is provided in a form extending from the frame 100, depending on the configuration in which the outer peripheral terminal 141 is interposed in the frame 100, the position of the vibration connecting portion 130 of the frame 100 It may be formed integrally interposed in, in the embodiment of the present invention is preferably formed as a separate connection from the vibration connecting portion 130 of the frame 100.

Thus, the connection terminal 143 may be provided to be spaced apart from the location of the vibration connection portion 130 so as not to interfere with the vibration connection portion 130 of the frame 100 to be exposed from the frame 100 in an empty space, Accordingly, the connection terminal 143 is not interlocked with respect to the vibration action of the vibration connection unit 130.

Meanwhile, in the embodiment of the present invention, the bottom plate may be provided as a separate member and be provided in a form coupled to the outer housing 110. The frame 100 may further include a reinforcement plate 150.

The reinforcing plate 150 is provided to reinforce the rigidity of the frame 100, and is preferably formed of a material having stiffness than the material of the frame 100 to reinforce the frame 100.

That is, the reinforcing plate 150 may be formed of a synthetic resin-based material that is harder than the synthetic resin constituting the frame 100, and preferably may be formed of a metal material having superior rigidity to plastic.

As an example of such a reinforcing plate 150 may be provided in stainless steel (eg, SUS). Accordingly, in order to protect the vibration connecting portion of the suspension S from being deformed or shorted due to vibration due to the characteristics of a general vibration speaker, the risk of deformation due to vibration is reduced by selecting the material of the frame 100 as a somewhat soft material. In this case, the reinforcing plate 150 can reinforce the frame 100 to widen the range in selecting the material of the frame 100.

In addition, the reinforcing plate 150 is provided separately from the frame 100 when reducing the thickness of the suspension (S) where direct vibration occurs, so as to support the frame 100, the width of the frame 100 or As it functions to reduce the thickness, it is effective for slimming the speaker.

Here, the reinforcing plate 150 is composed of a bottom plate of the outer housing 110, and may be provided as a flat member, and the upper outer circumferential side is fixed to the lower surface of the outer housing 110, and the inner side thereof In the yoke 210 of the magnetic field forming unit 200 is seated.

3 and 4, a yoke fitting groove 150a for fixing the yoke 210 may be formed in the reinforcing plate 150. The yoke fitting groove 150a is formed to penetrate through the yoke 210, and the yoke 210 is partially inserted through the through hole so that the circumferential flange is seated on the bottom surface of the reinforcing plate 150. Lose.

In addition, the reinforcing plate 150 is formed with an interference avoiding portion 151 through which the vibration connecting portion 130 can enter in order to avoid interference during the up and down vibration of the vibration connecting portion 130.

The interference avoiding portion 151 is positioned to correspond to the vibration connecting portion 130 and may be formed in the form of a through hole or a groove in the reinforcing plate 150, and a sufficient space for movement when the vibration connecting portion 130 is lowered, That is, an escape area is secured.

Particularly, the speaker according to the present invention may collide with the bottom surface of the frame 100, that is, the reinforcing plate 150 while the vibration of the suspension flows due to the shape in which the vibration connecting portion 130 is bent and extended in the vertical direction. In order to prevent a collision according to this, it is intended to avoid substantial interference with the reinforcing plate 150 by providing an allowable space for the vibration connecting portion 130 to move by the interference avoiding portion 151. This is not limited to a vertical damper, and a similar effect due to interference prevention can be expected in a horizontal damper.

The interference avoiding portion 151 may be configured as a first avoiding groove 151a formed with respect to the vibration connecting portion 130, and a second avoiding groove 151b positioned on the connecting portion side of the connecting terminal 143 It may be additionally configured, and in addition to these configurations, it is preferable to arrange and form appropriately with respect to a portion where movement occurs during the vibration operation of the speaker.

Accordingly, the interference avoiding unit 151 prevents the possibility of collision with respect to the movement of the vibration connecting unit 130, prevents deformation due to collision, and can prevent the speaker from malfunctioning according to the occurrence of interference, in addition to the vibration width Is to be able to further reduce the thickness of the speaker while maintaining the same.

In other words, in the case where interference occurs during vibration of the vibration connecting portion, interference was not caused by placing the vibration connecting portion in a higher position, but this would have a problem of increasing the thickness of the frame. Thus, the speaker according to the present invention, by preventing the occurrence of interference by securing the moving space of the vibration connecting portion 130 by the interference avoiding portion 151, it is possible to reduce the thickness of the speaker.

At this time, according to an embodiment of the present invention, as shown in FIG. 4, a sealing member 160 may be provided on the lower surface of the reinforcing plate 150.

The sealing member 160 is to prevent foreign matter from entering by shielding an opening such as the interference avoiding portion 151 of the reinforcing plate 150, and to prevent the performance of the speaker from deteriorating, the sheet made of a material such as a film It can be provided as a member and adhered. The sealing member 160 is provided as a sheet of a film material as an embodiment, it can be attached by using an adhesive, etc., it can also be combined by other attachment methods.

Meanwhile, the above-described frame 100 is provided with a magnetic field forming unit 200 and a vibration unit 300, which are speaker components, to form one speaker.

The magnetic field forming unit 200 induces vibration of the vibration unit 300, and may include a yoke 210 and a magnet 220 sequentially stacked, and a plate 230.

The yoke 210 is fixed to the speaker frame 100, as described above, may be seated and fixed to the bottom plate of the frame 100, that is, in the embodiment of the present invention, the reinforcing plate 150, and the reinforcing plate 150 The yoke 210 of the yoke fitting groove 150a is fixed by being fitted. The connection configuration is not limited to the above-described configuration, and any conventional configuration may be used as long as it is a connection configuration for coupling the yoke 210 to the frame 100. In addition, the magnet 220 and the plate 230 may be provided in a space formed inside the yoke 210, the magnet 220 is seated inside the yoke 210, and the plate 230 is disposed thereon. It may settle down in turn.

The magnetic field forming unit 200 may form a magnetic field around the magnet 220 by the magnet 220.

The vibrating unit 300 may be configured to vibrate in conjunction with the magnetic field forming unit 200, as shown in the embodiment shown in FIG. 5, thereby generating sound. To this end, the vibration part 300 includes a voice coil part 310 and a vibration plate 320.

The voice coil unit 310 includes a voice coil 311 and a coil bobbin 312 through which the voice coil 311 is wound, and is connected to the terminal unit 140 to receive electric signals. That is, the coil bobbin 312 may be attached and connected to the lower surface of the inner circumferential terminal 142 which is a voice coil connection portion. Accordingly, a magnetic field is formed around the voice coil 311 by the received electric signal. In addition, the magnetic field formed around the voice coil 311 may interact with the magnetic field formed around the magnet 220 of the magnetic field forming unit 200. As a result, the coil bobbin 312 positioned at a predetermined interval between the yokes 210 and the magnets 220 can vibrate, and the vibration plate 320 to be described later can be vibrated to generate sound.

To this end, the diaphragm 320 may be vibrably connected to the frame 100. The vibration plate 320 includes a flat plate 321 and an edge plate 322.

The flat plate 321 may be provided in a form that covers the inner housing 120, and is fixed to the lower surface of the inner housing 120. In addition, the flat plate 321 is fixed to the inner circumferential terminal 142 connected to the voice coil unit 310 on its lower surface.

The flat plate 321 vibrates together when the inner housing 120 and the voice coil part 310 vibrate as the coil bobbin 311 vibrates. On the outer circumferential side of the flat plate 321, an edge plate 322 is provided.

Edge plate 322 may be seated on the outer housing 110, the circumferential side, when the flat plate 321 is vibrated, vibrate together, it is possible to generate a sound with the flat plate 321. . The vibration plate 320 may be formed of a material such as wood or paper material or carbon, and is preferably attached and fixed to the frame 100 by an adhesive or the like.

On the other hand, the vibration plate 320 may be provided with a through hole (not shown) that is formed through, so as to avoid the interference generated when the vibration unit 300 vibrates with the suspension (S), corresponding to the pierced portion Even if the diaphragm 320 is lowered due to the gap, there is no interference with the yoke 210 on the lower side, so that a free space for vibration can be secured. At this time, it is preferable that a dust cap (not shown) is attached to the upper or lower surface of the vibration plate 320 at the corresponding position of the evasion through hole, thereby preventing the inflow of foreign substances or the like.

6 to 8 is a view showing a speaker 10' according to a second embodiment of the present invention, showing a speaker having a different configuration from the speaker according to the first embodiment of the present invention described above. In the example of the above-described embodiment, the speaker unit U'is provided in two instead of four, and the structure of the vibration connecting portion 130' of the frame 100' is formed in a horizontal curved shape rather than a vertical shape. It is a difference from the speaker, and the interference avoiding portion 151' is formed in the frame 100', thereby providing a free space for the vertical vibration width of the connection terminal 143' or the vibration connection portion 130'.

At this time, in the speaker according to the second embodiment, as the vibration connecting portion 130' is formed in a horizontal damper shape, the space required for installation can be reduced compared to a vertical damper, thereby inducing a reduction in the overall thickness of the speaker. .

In addition, according to the second embodiment of the present invention with reference to FIG. 7, the structure of the connection terminal 143' is provided in the form of a plate terminal as in the first embodiment, and the suspension is manufactured by manufacturing it in a horizontal damper shape. It is to respond to the vibration of the, otherwise, the connection terminal may be provided in the form of a wire terminal.

That is, as shown enlarged in FIG. 7, the configuration of the connection terminal 143" may be provided in the form of a wire terminal made by twisting a plurality of wire strands, which is a connection terminal (a plate terminal provided in a thin plate material) 143) (143') because it is formed flexibly and can move freely, there is an advantage that it can flow in response to movement caused by vibration of the speaker. In addition, the connection terminal 143" is configured in the form of a wire terminal Depending on the structure, even if it is not manufactured in the form of a horizontal or vertical curved damper, it is possible to move freely even when the outer and inner terminals are connected, so that the vibrational movement of the inner and outer terminals is not restrained. Since it is possible to reduce the risk of short circuit, it is easy to prevent disconnection of the terminal.

On the other hand, the glass fiber-reinforced polyamide cutlery composition used as the material of the above-mentioned suspension (S) integral frame 100, the polyamide resin is polyamide-6, 12, 66, 6/66, 6/12 , 6/6T and combinations thereof, and may be at least one resin selected from the group consisting of polyamide-6 (nylon-6) resin.

Thus, in the present invention, as a resin composition that is introduced into an injection molding mold to manufacture the speaker frame 100, polyamide 6 is used as a main material, and glass fibers are added thereto to form a resin mixture.

In addition, an impact modifier or a stabilizer may be further included in the resin mixture, and a resin mixture containing them is constructed. At this time, the impact modifier and the stabilizer each occupy a content of less than 3% by weight relative to the total weight of the resin mixture, and these components have a small effect on the properties of the product according to the difference in content, but are significantly involved in the actual product properties Since it is not, the description of them will be omitted. As an example, the impact modifier may be selected and used as a rubber material.

Most of these resin mixtures are composed of polyamide 6 resin, and the mixture is constituted by increasing or decreasing the polyamide resin according to the amount of glass fibers added. To this end, the present applicant, for the total composition of 100% by weight of the resin mixture, from the composition of the glass fiber content of 0% without adding glass fibers, the resin mixture is added at a maximum of 70% by increasing the glass fibers in increments of 5% by weight Was constructed. As an example, when the glass fiber is 0%, the polyamide 6 resin is 95 (±5) wt%, the impact modifier and stabilizer are provided as a material containing 5 (±3) wt%, and the glass fiber is 50% In the case of polyamide 6 resin is 50 (±5) wt%, glass fiber is 50 (±5) wt%, impact modifier and stabilizer may be provided as a material containing 5 (±3) wt% .

At this time, when the content of the glass fiber is increased, the rigidity of the molded product manufactured by the mixture becomes harder, but when the content of the glass fiber is greater than the content of the polyamide resin, the elasticity and elasticity are lowered, so the speaker frequently Since it may be vulnerable to vibration, and the glass fiber may protrude to the surface of the molded product, the appearance quality may deteriorate, it is preferable to configure the content of the glass fiber to about 40% or less of the total mixture.

At this time, the present applicant has made it possible to manufacture a speaker suitable for the required specification without structurally changing the speaker such as the thickness or shape of the suspension S.

Specifically, in the present invention, while having the same speaker structure, only the amount of vibration of the suspension S is changed, so that speakers having characteristics of different sound ranges are manufactured. That is, the speaker frame manufactured using the resin mixture, by adjusting the content of the glass fiber mixed with the resin to set the rigidity of the suspension (S) differently, the vibration width of the actual suspension (S) according to the change in rigidity Can be adjusted.

Accordingly, the speaker of the present invention can control the sound pressure level of the suspension (S) by changing the mixing amount of the resin, so that it has a frame and suspension structure of the same shape through one injection mold, but can provide speakers with different characteristics. There will be.

In particular, the present invention has been made to be able to be used as a midrange speaker in charge of the midrange or a woofer speaker in charge of the low range, respectively.

In order to achieve this, the present applicant selected the resin mixture to which 0%, 15%, and 30% of glass fibers were respectively added among the above-described composition of the resin mixture, and experimented with three experimental examples. The composition of the resin mixture according to the content of the glass fibers is as follows.

Experimental Example 1

Without containing fiberglass, about 5 (±3)% by weight of additives such as impact modifiers or stabilizers were added to 95 (±5)% by weight of polyamide 6 resin to form a mixture.

Experimental Example 2

15 (±5)% by weight of glass fiber was used, and the composition of the mixture was 80% (±5)% by weight of polyamide 6 resin, and about 5 (±3)% by weight of additives such as impact modifiers or stabilizers The mixture was made up by addition.

Experimental Example 3

Glass fiber was used by adding 30 (±5)% by weight, and the composition of the resulting mixture was about 65 (±5)% by weight of polyamide 6 resin, and about 5 (±3)% by weight of additives such as impact modifiers or stabilizers The mixture was made up by addition.

Table 1 summarizes the material properties of the resin mixture for each property.

As shown in Table 1, it can be seen that the material itself has different properties according to the content difference of the glass fibers.

In addition, as shown in the above table, the polyamide resin mixture according to the present invention maintains excellent tensile strength, flexural strength, flexural modulus, and impact strength, so that even when it is made of a speaker frame, it is subjected to frequent vibrations of the suspension (S) region. It has a strong resistance.

In addition, below, using the three resin mixtures previously selected, it was produced as a speaker frame through injection molding. That is, with each resin mixture having the configuration of the above-described three embodiments, a suspension (S) integrated speaker frame 100 was manufactured, and a speaker assembly was fabricated by assembling and constructing a speaker assembly using the produced frame.

[Manufacturing method]

Tables 2 to 4 below show injection molding environments according to each embodiment.

The injection mold used in this embodiment is composed of a weighing step, an injection step, and a holding pressure step, and each step is performed in the environment of Tables 2 to 4 below. In the weighing step, a certain amount of the target resin is melted and kneaded (plasticized), and in the injection step, the molten resin is injected into the mold to fill the resin into the mold cavity of the frame, and in the holding pressure step, the resin is cooled and solidified during the process. A certain pressure is applied to prevent shrinkage. After this step, the frame is taken out through the taking out step.

The following Table 2 shows the injection molding environment in which the resin mixture corresponding to Experimental Example 1 was introduced into an injection molding die to produce a speaker frame.

At this time, the temperature of the injection mold is set to 200°C in the rear zone (3), 210°C in the middle zone (2), and 230°C in the front zone (1), for each section leading from the hopper to the nozzle. The nozzle temperature was set to 240°C at the nozzle position (Bn) and 240°C at the nozzle end (EN). And, the mold temperature was maintained at about 70°C to 90°C. In addition, the injection time was about 57 seconds, and the cooling time was about 12 seconds.

The following Table 3 shows the injection molding environment in which the resin mixture corresponding to Experimental Example 2 was injected into an injection molding machine to produce a speaker frame, and each step was performed based on the values in Table 3.

At this time, the temperature of the injection mold is set to 220°C in the rear zone (3), 230°C in the middle zone (2), and 250°C in the front zone (1), for each section leading from the hopper to the nozzle. The temperature of the nozzle was set to 257°C at the nozzle position (Bn) and 257°C at the nozzle end (EN). And, the mold temperature was maintained at about 70°C to 90°C. In addition, the injection time was about 57 seconds, and the cooling time was about 12 seconds.

In addition, the following Table 4 shows the injection molding environment in which the resin mixture corresponding to Experimental Example 3 was put into an injection molding machine to produce a speaker frame, and each step proceeded based on the values in Table 4.

At this time, the temperature of the injection mold is set to 210°C in the rear zone (3), 225°C in the middle zone (2), and 255°C in the front zone (1), for each section leading from the hopper to the nozzle. The nozzle temperature was set to 262°C at the nozzle position (Bn) and 262°C at the nozzle end (EN). And, the mold temperature was maintained at about 70°C to 90°C. In addition, the injection time was about 57 seconds, and the cooling time was about 12 seconds.

On the other hand, the present applicant constructed and tested the speaker assembly using the speaker frames made of the above experimental examples. Fig. 10 shows the characteristic values tested for these speakers. That is, the speaker characteristics of each example according to the content to which the glass fibers are added are shown graphically.

In FIG. 10, referring to the graph shown above, the sound pressure level (SPL) characteristics of the speaker assembled from the injection molded frame from the resin mixture of the first to third experimental examples from the left can be confirmed, and at a position of 150 Hz. When comparing the unit db (decibel) SPL, 73 db was measured in the speaker of the first experimental example containing 0% glass fiber, 70 db was measured in the speaker of the second experimental example containing 15% glass fiber, and the glass fiber was In the speaker of the third experimental example containing 30%, 66db was recorded as measured.

In addition, in FIG. 10, referring to the graph shown below, it is possible to confirm the impedance (Impedance) characteristics of an injection molded and assembled speaker in three experimental examples, and comparing F0 (lowest resonance frequency), glass fibers The speaker of the first experimental example containing 0% was measured at 230 Hz, the speaker of the second experimental example containing 15% glass fiber was measured at 255 Hz, and the speaker of the third experimental example containing 30% glass fiber was 285 Hz. It was recorded as measured by.

In this way, speakers having the same size and configuration, it can be seen that the speaker characteristics are changed according to the content of the glass fibers in the composition constituting the frame, and these changes are substantially different from the rigidity of the frame depending on the content of the glass fibers. It is an action that appears as it is manufactured.

That is, as in the first experimental example, if the content of the glass fiber is a very small amount or not included at all, the strength of the frame produced compared to the composition of the second or third experimental example containing the glass fiber belongs to the soft side , As the vibration amount (vibration width) of the suspension S increases, it can be seen that the sound pressure level at the 150 Hz reference position is high, and the value of F0 is measured low.

On the contrary, as in the third experimental example, when the content of the glass fiber is contained in about 30%, the strength of the frame manufactured compared to the composition according to the previous other experimental examples belongs to the hard side, and thus the suspension (S) It can be seen that the sound pressure level at the reference position of 150hz is low, and the value of F0 is measured high as the vibration amount of is decreased.

In the range of speaker characteristics shown in these experimental examples, it cannot be used as a tweeter speaker with a very high range, but since it includes a band of a woofer speaker or a midrange speaker, it is used as a woofer speaker according to different characteristic values, or a midrange speaker Can be used as

In other words, in the manufacture of the suspension-integrated speaker, the present invention can manufacture speakers having different performances by differently manufacturing the composition of the resin composition used as the material of the speaker frame.

As described above, the present invention allows the vibration amount of the suspension (S) to be adjusted by simply changing the stiffness of the frame by adjusting only the content of the glass fiber in accordance with the required speaker specifications without changing the shape of the speaker frame at all. That is, it is possible to manufacture a speaker of various performances using one injection molding machine. That is, the present invention simply changes the stiffness of the suspension (S) by adjusting the content of the glass fiber, and accordingly can configure the performance of the speaker differently.

In the conventional case, in order to manufacture a speaker having a different performance, the thickness of the suspension itself is changed through a shape change of the suspension S, such as changing the thickness of the suspension itself to be thick or thin, or differently forming a curved shape of the suspension. Although the amount of vibration was adjusted, in order to produce a speaker frame corresponding to each performance, an injection mold corresponding to each frame had to be newly produced in order to produce a frame having various shapes of suspension. By setting differently, it is possible to manufacture a frame for a speaker with a different performance through one injection molding machine, thereby significantly reducing the cost of manufacturing the mold.

In addition to this, the speaker of the present invention can significantly reduce noise caused by vibration of the metal material by changing the suspension S formed of the existing metal material to a nylon material.

In addition to this, the speaker of the present invention is formed by integrally forming the suspension (S) and the frame (100) by injection molding with nylon material, so that it is quite durable against frequent vibrations of the suspension (S) due to its flexible properties compared to conventional metals or general plastics. It is possible to withstand and minimize the risk of breaking.

The operation of the speaker according to the present invention having the above-described configuration will be described as follows.

First, when an electric signal is transmitted to the magnetic field forming unit 200 fixed to the frame 100, the diaphragm 320 by electromagnetic interaction generated between the permanent magnet magnet 220 and the voice coil unit 310 It vibrates in the vertical direction.

In this case, the suspension S integrally formed with the frame 100 stably induces up and down vibration of the vibrating unit 300.

In addition, the speaker according to the embodiment of the present invention is composed of a plurality of speaker units, so that the vibration of the vibration unit 300 is reduced as the applied power amount is branched to each speaker unit.

That is, the speaker of the present invention is composed of four speaker units in the first embodiment, and is composed of two speaker units in the second embodiment, and the vibration amplitude for power applied according to each embodiment is 1/4 or 1 It can be reduced to /2.

Accordingly, since the vibration width of the vibrating unit 300 can be reduced compared to the same conventional configuration, the minimum separation space required for vibration can be configured to be smaller, which is effective in reducing the overall thickness of the speaker.

In addition, the reinforcing plate 150 of the frame 100 is provided with an interference avoiding portion 151, and provides sufficient space for the vibration of the vibrating portion 300, so it functions to prevent collisions between components. That is, with respect to vibration movement, by preventing the vibration connecting portion 130 acting as the suspension (S) from colliding with the reinforcement plate 150, it is possible to minimize the occurrence of deformation or noise due to collision, and to prevent interference. This will block the speaker malfunction.

Moreover, the interference avoiding unit 151 not only prevents collision between components, but also minimizes the thickness of the frame 100 by minimizing the distance between the vibrating connection unit 130 and the reinforcing plate 150 due to securing space, thereby reducing the overall thickness of the speaker. Can be reduced.

In addition, the interference avoiding portion 151 provides a free space for vibration of the vibration connecting portion 130 due to the first avoiding groove 151a, and the vibration of the connection terminal 143 due to the second avoiding groove 151b By providing a free space for each, an escape area serving as a free space is provided for a portion where movement occurs during vibration of the speaker, thereby further reducing the thickness of the speaker.

Due to the above configuration, the speaker of the present invention can be manufactured as a slim speaker having a thin thickness as shown in FIG. 9, which has a significantly thinner thickness than other speakers having similar performance or area. Here, when comparing the speaker 10 of the first embodiment shown in (a) of FIG. 9 and the speaker 10' of the second embodiment shown in (b), the configuration of the vibration connecting portion as the suspension S It has a difference in that it is composed of two vertical and horizontal dampers, and four and two speaker units, respectively. As shown in the figure, the present invention can be seen that the thickness of the two speakers are different, which is due to the current branching effect according to the quantity of the speaker unit, it is possible to confirm that the thickness difference occurs even if the same component is used. .

The actual thickness of such a speaker is shown to have a thickness of about 3.5 to 4.5 mm in the speaker 10 of the first embodiment, and a speaker 10' of the second embodiment to have a thickness of about 5.5 mm to 7 mm. Accordingly, the thickness of the speaker 10' of the second embodiment with two speaker units is approximately 1.5 times thicker than the thickness of the speaker 10 of the first embodiment with four speaker units. will be. At this time, although there is a shape difference in that the vibration connecting portion 130 of the first embodiment and the vibration connecting portion 130' of the second embodiment are vertical and horizontal dampers, the difference in thickness between both speaker frames due to this is a unit The effect is not large compared to the difference caused by the difference in quantity. That is, by configuring the number of speaker units in plural, a speaker having a thin thickness can be manufactured, thereby achieving a slimmer speaker.

On the other hand, the speaker of the present invention, the inner circumferential terminal 142 connected to the unit is connected to the outer circumferential terminal 141 by the connecting terminal 143, wherein the connecting terminal 143 acts as a suspension (S) It is provided in a separate configuration without interfering with the vibration connecting portion 130, so that the connection terminal 143 is not directly interlocked with respect to the vibration action of the vibration connecting portion 130.

That is, as the connection terminal 143 is formed as a separate connection portion to minimize vibration of the terminal itself, the risk of the connection terminal 143 being short-circuited due to frequent vibration of the vibration connection portion 130 acting as a suspension can be reduced. .

At this time, since the connection terminal 143 is a structure that is connected to the inner circumferential terminal 142 coupled to the inner housing 120, it is forced to flow together when the suspension is substantially vibrated, but the vibration connection unit 130 and Since it is integrally formed, its movement can be minimized as compared with the form of vibrating together.

In other words, in the case of a flat panel speaker in which the existing metal suspension is integrated in the frame, the metal suspension acts as a vibration unit and is used as a terminal terminal, so there is a risk of short circuit due to movement, while the speaker of the present invention The vibration connecting portion 130 of the synthetic resin material and the connecting terminal 143 made of metal are present as respective connecting portions, thereby reducing the movement of the connecting terminal 143 due to the vibration of the vibration connecting portion 130, which means that the terminal This will reduce the risk of short circuit.

In addition to this, the speaker of the present invention, due to the structure of separating each of the vibration connecting portion 130 and the connection terminal 143 independently, minimizes the movement of the connection terminal 143 to the vibration of the metal connection terminal 143 Noise can be reduced.

In addition, the speaker of the present invention, as shown in the second embodiment, it is possible to further reduce the movement of the terminal by providing a connection terminal 143", rather than a plate terminal type, in the form of a wire terminal with a more flexible structure. , This minimizes the risk of short circuit or noise.

In addition, the speaker of the present invention is composed of a synthetic resin, preferably nylon, of the material of the vibration connecting portion 130, so that it can withstand frequent vibrations of the vibration connecting portion 130 due to flexible characteristics compared to the existing plastic, and thus may be broken. Can be minimized.

The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are for illustrative purposes, not for limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments.

Therefore, the protection scope of the present invention should be interpreted by the following claims rather than limited by the above-described embodiments, and all technical spirits within the equivalent range should be interpreted as being included in the scope of the present invention.

100: frame 110: outer housing
120: inner housing 130: vibration connection
140: terminal portion 150: reinforcement plate
200: magnetic field forming unit 300: vibration unit
310: voice coil part 320: diaphragm

Claims (8)

As a speaker that generates sound according to an electric signal, a frame portion constituting the outer shape of the speaker, a magnetic field forming portion provided in the frame portion to form a magnetic field, and a vibration generated in connection with the magnetic field forming portion to generate sound It includes a voice coil portion and a vibration portion having a vibration plate,
The frame portion is integrally provided with a suspension that induces vibration of the vibration portion,
The frame portion is provided with a terminal portion integrally provided for electrical connection with the voice coil portion,
The terminal portion is vibrably connected to the frame portion, and is independently connected to the suspension to vibrate.
The suspension includes a vibration connecting portion that is vibratingly connected from the frame portion,
The terminal portion includes a voice coil portion connection portion for stably connecting the voice coil portion, and a terminal connection portion for connecting the voice coil portion connection portion to the frame portion,
A flat speaker with integrated suspension, characterized in that the terminal connection portion and the vibration connection portion are independently arranged.
The method according to claim 1,
The vibration connecting portion is formed in a vertical curved damper shape,
The terminal connecting portion is a flat-type speaker with an integrated suspension, characterized in that formed in the shape of a curved curved damper.
The method according to claim 1,
The frame portion and the suspension are made of synthetic resin, and a flat speaker with integrated suspension characterized in that it is integrally molded by injection molding.
The method according to claim 3,
The synthetic resin is a flat speaker with integrated suspension, characterized in that it comprises a nylon material.
The method according to claim 3,
The terminal portion is a flat speaker with integrated suspension, characterized in that made of metal.
The method according to claim 1,
Further comprising a reinforcement plate coupled to the bottom surface to support the frame portion,
The reinforcing plate is a flat speaker with an integrated suspension, characterized in that provided with an interference avoidance portion to provide a free space according to the vibration width during the vertical vibration of the suspension.
A speaker according to any one of claims 1 to 6,
The magnetic field forming unit and the voice coil unit are provided in a plurality to configure a plurality of speaker units,
The vibrating plate is a flat speaker with integrated suspension, characterized in that it consists of a single body connecting the plurality of speaker units. delete

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