KR101158028B1 - Suspension for speaker - Google Patents

Abstract

The present invention is capable of realizing the rich and heavy sound quality of the low end and the clear sound quality of the high end as the speaker suspension, in particular, outputs sound quality of good frequency characteristics in the low and high bands among the audible frequency bands. It is electrically connected to both ends of the coil 4 so as to apply an electrical signal to the voice coil 4 from the outside, and the longitudinal direction of the permanent magnet 2 is changed by the electromagnetic induction of the electrical signal applied to the voice coil 4. The supporter unit 100 is closely coupled between the voice coil 4 and the diaphragm 5 so that the voice coil 4 vibrates and the diaphragm 5 vibrates in conjunction with the vibration of the voice coil 4; One end is electrically connected to both ends of the supporter unit 100 so as to apply an electrical signal to the supporter unit 100 from the outside, and the other end is attached to the edge of the frame 1 as a terminal for receiving an electrical signal from the outside, And a pair of swing bridges 200 which elastically connect the diaphragm 5 and the frame 1 while vibrating in association with the vibration of the diaphragm 5.

Description

Suspension for Speakers {SUSPENSION FOR SPEAKER}

The present invention relates to a suspension for a speaker, and in detail, the structure is simple and thinly improved to output good characteristics and sound quality in the low and high bands of the audible frequency band, so that the rich and heavy sound quality of the low end and the clear sound quality of the high end are clear. It is a technology related to the suspension for the speaker is easy to improve the partial structure by implementing a separate structure.

In general, a speaker is composed of a principle of converting electromagnetic energy into mechanical vibration energy by a voice coil existing between voids according to Fleming's left-hand law that a current-carrying conductor is energized when it is in a magnetic field.

That is, when a peak pressure electric signal of an acoustic signal including several frequencies is applied to the voice coil, the voice coil generates mechanical vibration energy according to the strength of the current and the magnitude of the frequency, and is diaphragm attached to the voice coil. Vibration in the ear ultimately generates sound pressure that the ear can perceive.

In the magnetic circuit of such a speaker, the voice coil is wound around the outer circumferential surface of the permanent magnet by a predetermined distance using a permanent magnet.

When the peak voltage electric signal of the sound signal of a certain frequency band is applied to the wound voice coil, energy generated to vibrate before and after in the direction perpendicular to the winding direction is generated by the Fleming's left hand law.

Suspension is disposed in the gap between the voice coil and the diaphragm to transmit the vibration damped to the diaphragm by the vibration of the voice coil, and the vibration energy generated by the voice coil transmits the damped vibration to the diaphragm through the suspension. .

As a result, the vibration plate constrained to the frame vibrates to generate sound.

Suspension vibrating by elastic resilience in conjunction with the vibration energy of the voice coil is a key technology that determines the sound quality pattern and the input resistance improvement output through the speaker.

However, the conventional suspension has a limitation in broadband reproduction due to the complicated cross-sectional shape and constraints on the material and thickness selection. In particular, there is a problem that good vibration energy transfer to the diaphragm is not performed in the high frequency range (12k ~ 20k).

In other words, the structure is complicated and the elastic restoring force of the suspension for the high power is relatively weak due to the selection of material and thickness, which causes a problem of failing to implement delicate vibration energy in the high frequency band (12k ~ 20k) of the applied electric signal. You will lose the essence of the treble, which determines the resolution of the clear, clear sound.

Due to the complex structure and the integral suspension with the limitation of material and thickness selection, it was difficult to secure and improve the frequency characteristics of the low band, the mid band, and the high band (high frequency band).

In order to solve the above problems, as a sound quality having good frequency characteristics in the low and high bands of the audible frequency band, there is a demand for a speaker suspension that realizes the rich and heavy sound quality of the low end and the clear sound quality of the high end. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to output sound quality having good frequency characteristics in the low and high bands of an audible frequency band, so that the rich and heavy sound quality of the low end and the clear sound quality of the high end are clear. In providing a suspension for a speaker that can be implemented.

In order to achieve the above object, a suspension for a speaker according to the present invention comprises a frame having a pair of yoke portions formed in a shape of a one-body elongated in one direction and recessed in a predetermined portion, and permanently seated on each yoke portion of the frame. Magnets, a plate seated on the upper surface of the permanent magnet, a voice coil wound around the upper outer circumferential surface of the permanent magnet and supplying a peak pressure electric signal of an acoustic signal from the outside, and a current flowing through the voice coil in a state of being fitted inside the frame. The present invention relates to a speaker suspension that transmits a vibration of a voice coil to a diaphragm for a speaker including a diaphragm vibrating by a force generated by the interaction of a permanent magnet. The speaker is electrically connected to both ends of the voice coil so as to be energized. Applies an electrical signal to the coil and Supporter unit are coupled in close contact between the voice coil and the diaphragm such that the diaphragm vibrates in communication with the vibration of the voice coil, the voice coil and the vibration in the longitudinal direction of the permanent magnet by the magnetic induction; One end part is connected to both ends of the supporter part so as to be energized, and an electric signal is applied to the supporter part from the outside, and the other end is attached to the edge of the frame as a terminal to receive the electric signal from the outside, and vibrates in conjunction with the vibration of the vibration plate It is configured to include; a pair of swing bridge to elastically connect the frame.

The swing bridge is soldered and electrically connected to both ends of the supporter, respectively, and the first bridge 210 having the (+) terminal integrally formed and the second bridge 220 having the (−) terminal integrally insulated from each other. Is placed.

The supporter part is made of a synthetic resin material in which the body is a loop-shaped insulator that is elongated in one direction like the frame, and both sides are electrically insulated from each other based on the longitudinal center part of the body, and one surface is electrically connected to the first bridge. Each patterning part patterned to be electrically connected to the second bridge is integrally formed on one surface of the other side part.

In order to correspond to the structure in which the voice coil is wound around the permanent magnet, a pair of joints formed in a loop form is integrally formed with the body of the supporter part.

The body of the supporter part adjacent to the joint of the supporter part is formed with a solder land where the lead wire and the lead wire of the voice coil are electrically connected and soldered, and the solder land corresponding to the lead wire of the voice coil and the lead wire of the voice coil are formed. Lands are respectively disposed at both sides with respect to the longitudinal center portion of the supporter portion body.

Each of the first bridge and the second bridge is formed to extend each of the auxiliary bridges protruding in the direction facing each other, the synthetic resin which is an insulator on the outer circumferential surface of the first bridge and the second bridge in a state that each of the auxiliary bridges are separated from each other by a certain distance A film of ash is coated, by which the first and second bridges are integrally connected electrically insulated from each other.

The first bridge and the second bridge are electrically connected to the body of the supporter part to form solder lands, and each solder land is symmetrically disposed at both sides with respect to the longitudinal center of the supporter part body.

Suspension for a speaker according to the present invention,

First, in detail, the structure of the body is elongated in one direction, a single loop shape, and a supporter part made of a synthetic resin material and a swing bridge having excellent restoring force attached to both ends of the supporter part so as to completely transmit vibrations by the voice coil to the diaphragm. Therefore, even when the peak voltage electric signal of the wideband acoustic signal is applied to the voice coil, it is possible to output good sound, and in particular, to realize the rich and heavy sound quality of the low end and the clear sound quality of the high end.

Second, in detail, the structure of the body is elongated in one direction and consists of a single loop and a supporter part made of a synthetic resin material, and a swing bridge that is electrically connected to both ends of the supporter part, thereby simplifying the partial structure improvement.

Third, a film of synthetic resin, which is an insulator, is coated on the outer circumferential surface of the swing bridge configured to face each other with the first bridge and the second bridge by thermocompression bonding, and continuously vibrates in conjunction with a large vibration energy caused by high voltage applied from the outside. Even in this case, durability to prevent cutting due to fatigue load can be maintained.

Fourth, the first bridge by coating a film of synthetic resin material as an insulator integrally on the outer circumferential surface of the swing bridge in a state in which the auxiliary bridges are formed in an insulated state spaced apart from each other by a predetermined distance in a direction facing the first bridge and the second bridge The symmetrical structure can be maintained while the second bridge and the second bridge are insulated from each other.

Fifth, the first bridge by coating a film of synthetic resin material, which is an insulator integrally on the outer circumferential surface of the swing bridge in a state in which the auxiliary bridges are formed in an insulated state spaced apart from each other by a predetermined distance in a direction facing the first bridge and the second bridge; It is possible to easily solder a single swing bridge in which the and second bridges are integrally insulated from each other. Conventionally, each of the first bridge and the second bridge uses a connecting piece, which is a single metal plate integrated with the supporter portion, to solder the voice coil and then physically cut the connecting piece to mutually insulate the first bridge and the second bridge. It has been through cumbersome work steps, which has the advantage of eliminating these problems.

1 is a cross-sectional view showing the overall configuration of a suspension for speakers according to the present invention;
2 is a perspective view of a speaker suspension according to the present invention;
3 is a plan view of a suspension for a speaker according to the present invention;
4 is a bottom view of a suspension for a speaker according to the present invention,
5 is a graph showing the relationship between the volume and the frequency output through the speaker suspension according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the overall configuration of a speaker suspension according to the present invention, FIG. 2 is a perspective view of a speaker suspension according to the present invention, and FIG. 3 is a view of the speaker suspension according to the present invention. 4 is a plan view showing a bottom view of a suspension for a speaker according to the present invention.

As shown in Figure 1 and Figure 2, the suspension for the speaker according to the present invention is formed in the form of a one-body plate elongated in one direction and a frame formed with a pair of yoke portions 1a in which a predetermined portion is recessed ( 1), the permanent magnet 2 seated on each yoke portion 1a of the frame 1, the plate 3 seated on the upper surface of the permanent magnet 2, and the upper outer peripheral surface of the permanent magnet 2 Due to the interaction between the voice coil 4 which is wound and supplies the peak pressure electric signal of the acoustic signal from the outside, and the permanent magnet 2 and the current flowing in the voice coil 4 in a state of being fitted inside the frame 1 The present invention relates to a suspension for a speaker that transmits vibration of the voice coil 4 to the diaphragm 5 with respect to a speaker including a diaphragm 5 oscillating with the generated force. Connected to input an electrical signal to the voice coil 4 from the outside. The voice coil 4 vibrates along the longitudinal direction of the permanent magnet 2 by the electromagnetic induction of the electrical signal applied to the voice coil 4, and the diaphragm 5 is linked to the vibration of the voice coil 4. A supporter part 100 closely coupled between the voice coil 4 and the diaphragm 5 so as to vibrate; One end is electrically connected to both ends of the supporter unit 100 so as to apply an electrical signal to the supporter unit 100 from the outside, and the other end is attached to the edge of the frame 1 as a terminal for receiving an electrical signal from the outside, And a pair of swing bridges 200 which elastically connect the diaphragm 5 and the frame 1 while vibrating in association with the vibration of the diaphragm 5.

As shown in FIG. 1, the frame 1 is formed in a plate shape of one body elongated in one direction, and the edge portions of both ends are bent upwards.

In the central portion of the frame 1, a pair of yoke portions 1a recessed downwards are formed, and a cylindrical permanent magnet 2 is fitted into the yoke portion 1a to be seated thereon, and the permanent magnets 2 The plate 3 is seated on the top surface.

The voice coil 4 is wound around the outer circumferential surface of the permanent magnet 2 and the outer circumferential surface of the disc-shaped plate 3 in a state spaced apart from the outer circumferential surface of the permanent magnet 2 by a predetermined distance.

Fleming's left hand receives a force applied at right angles to the direction of the magnetic field and the direction of the current flowing through the conductor when current is applied to the conductor in the magnetic field when the electric signal peaking the acoustic signal is applied to the wound voice coil 4. By the law, the voice coil 4 vibrates before and after in the longitudinal direction of the permanent magnet 2.

By virtue of the operation of the voice coil 4 and the permanent magnet 2, the diaphragm 5 of the plate shape engaged with and coupled to both ends of the frame 1 at right angles to the longitudinal direction of the permanent magnet 2 vibrates in conjunction with each other.

The diaphragm 5 consists of the body 5b which is an insulator, and the edge 5a connected to the both ends of this body 5b.

As shown in Fig. 1 and Fig. 2, the suspension 10 of the present invention is electrically connected to both ends of the voice coil 4 so as to apply an electric signal to the voice coil 4 from the outside, 4) between the permanent magnet 2 and the diaphragm 5 so that the permanent magnet (2) is vibrated by the electromagnetic induction of the electrical signal applied to the vibration and the vibration plate (5) is vibrated in conjunction with the vibration of the permanent magnet (2) A supporter unit 100 that is tightly coupled; One end is electrically connected to both ends of the supporter unit 100 so as to apply an electrical signal to the supporter unit 100 from the outside, and the other end is attached to the edge of the frame 1 as a terminal for receiving an electrical signal from the outside, And a pair of swing bridges 200 which elastically connect the diaphragm 5 and the frame 1 while vibrating in association with the vibration of the diaphragm 5.

When the voice coil 4 vibrates in the front and rear directions, the vibration vibrates in conjunction with the supporter part 100 closely contacted between the voice coil 4 and the diaphragm 5, and the supporter part 100 The swing bridge 200 connected to both ends buffers the vibration of the supporter 100 and vibrates elastically in conjunction with the vibration of the supporter 100.

That is, the swing bridge 200 has a bridge function for supporting the front and rear vibration of the voice coil 4 and the supporter unit 100.

For this reason, the supporter part 100 and the swing bridge 200 play a very important role in the pattern of the vibration sound output through the speaker. In particular, the structure in which the swing bridge 200 bridges the voice coil 4 and the diaphragm 5 while elastically and flexibly vibrates is applied to the voice coil 4 when an electric signal in which the peak signal of the acoustic signal in the high frequency range is applied. It will function to transmit minute vibrations completely.

Swing bridge 200 is preferably the body is made of a material such as ductile copper (Cu), aluminum (Al), stainless steel, nickel alloy for energization, the outer surface of the body of heat resistance, chemical resistance, wear resistance, restoring resistance This excellent insulator polyimide film is coated by thermocompression.

Preferably, the thickness of the swing bridge 200 is configured to be 0.2 mm or less, but may be variably configured for tuning frequency characteristics and sound quality.

2 to 4, the swing bridge 200 is soldered and electrically connected to both ends of the supporter part 100, respectively, and the first bridge 210 in which the positive terminal is integrally formed. And the second bridge 220 formed integrally with the (-) terminal are arranged insulated from each other. Reference numeral 212 denotes a positive terminal to which an external electric signal is applied, and reference numeral 222 denotes a negative terminal to which an external electric signal is applied.

The (+) terminal integrally formed on the first bridge 210 and the (-) terminal integrally formed on the second bridge 220 are soldered in the lead wires and lead wires of the voice coil 4 to the supporter part 100. Can be interchanged accordingly.

The positive terminal of the first bridge 210 and the negative terminal of the second bridge 220 are fixed to the edge of the frame 1.

That is, the swing bridge 200 is elastically linked with the vibration of the voice coil 4 at the other end which is symmetrical with both terminal parts 212 and 222 about the center axis of the two terminal parts 212 and 222 fixed to the edge of the frame 1. Will vibrate.

As shown in FIG. 4, the supporter part 100 is made of a synthetic resin material in which the body is an insulator having a loop shape that is elongated in one direction like the frame 1, and the thickness of the cross section is variable according to the use and size of the speaker. It may be configured, the two sides are electrically insulated from each other based on the longitudinal center portion of the body and is electrically connected to the first bridge 210 on one surface of one side and electrically connected to the second bridge 220 on one surface of the other side Each patterning portion 110a, 110b patterned to be connected is integrally formed.

The supporter part 100 is preferably made of a synthetic resin material such as epoxy resin or phenol resin, and is relatively light, so that the vibration of the voice coil 4 can be buffered and transmitted to the vibration plate 5 in detail.

That is, the patterning parts 110a and 110b are coated with a flexible printed circuit board on a surface of the supporter part 100 so as to apply an electric signal from the outside to the voice coil 4.

This is a short circuit in the process of applying the electric signal applied from the first bridge 210 and the (-) terminal is connected integrally, the second bridge 220 is integrally connected to the supporter unit 100 To prevent this.

As shown in FIG. 3, a pair of joints 120 having a loop shape corresponding to the structure in which the voice coil 4 is wound around the permanent magnet 2 is integrally formed with the body of the supporter unit 100. Is formed. The shape of the joint 120 may be applied in a variety of loops, such as circular, elliptical, track type.

The front end of the voice coil 4 wound around the permanent magnet 2 is closely coupled to the joint 120 formed in the supporter 100. As a result, the vibration of the voice coil 4 is transmitted to the supporter part 100 and the diaphragm 5 so that the supporter part 100 and the diaphragm 5 vibrate together with the vibration of the voice coil 4. do.

As shown in FIG. 3, a solder land in which a lead line and a lead line of the voice coil 4 are electrically connected and soldered to the body of the supporter unit 100 adjacent to the joint 120 of the supporter unit 100 is soldered. 130a and 130b are formed, and the solder land 130a corresponding to the lead wire of the voice coil 4 and the solder land 130b corresponding to the lead wire of the voice coil 4 are the lengths of the body of the supporter part 100. It is arrange | positioned at both sides with respect to a direction center part, respectively.

This is a short circuit in the process of applying the electric signal applied from the first bridge 210 and the (-) terminal is connected integrally, the second bridge 220 is integrally connected to the supporter unit 100 To prevent this.

As shown in FIGS. 2 to 4, each of the first bridges 210 and the second bridges 220 is formed with the respective auxiliary bridges 211 and 221 protruding from each other. In the state in which the auxiliary bridges 211 and 221 are separated from each other by a predetermined distance, a film of synthetic resin, which is an insulator, is coated on the outer circumferential surfaces of the first bridge 210 and the second bridge 220 by a thermocompression bonding method, and the first film is coated with the first film. The bridge 210 and the second bridge 220 are integrally connected to be electrically insulated from each other.

On the outer circumferential surface of the swing bridge 200 formed in the form in which the first bridge 210 and the second bridge 220 face each other, a film of synthetic resin, which is an insulator having excellent heat resistance, is coated and continuously applied to the speaker from the outside. Durability that can prevent fatigue from being cut even by vibration caused by high voltage can be maintained.

As shown in FIGS. 2 to 4, the first and second bridges 210 and 220 are solder lands 140a and 140b electrically connected to and soldered to the body of the supporter 100. The solder lands 140a and 140b are disposed symmetrically on both sides of the supporter part 100 based on the longitudinal center of the body.

5 is a graph showing the relationship between the volume and the frequency output through the speaker suspension according to the present invention, the reference numeral F2 is a high-frequency region of the peak pressure electrical signal of the acoustic signal applied to the voice coil 4 from the outside In the high-frequency range, the vibration transmitted through the existing suspension is not completely transmitted to the diaphragm 5, thereby indicating a frequency characteristic of an unfavorable sound output state.

That is, the suspension that vibrates in the bridge structure in conjunction with the vibration of the voice coil 4 is a phenomenon that occurs when the fine vibration of the high frequency band with small amplitude is not transmitted to the diaphragm 5 entirely.

Reference numeral F1 denotes that the vibration transmitted through the suspension 10 of the present invention is completely transmitted to the diaphragm 5 when the electrical signal applied to the voice coil 4 from the outside is in a high-frequency range. Frequency characteristic of sound output state.

Reference numeral F4 indicates that when the electric signal applied to the voice coil 4 from the outside is in the low-frequency range, the vibration transmitted through the existing suspension is not completely transmitted to the diaphragm 5, so that the sound is not good. The frequency characteristics of the output state are shown.

That is, due to the inelastic stiffness of the existing suspension that vibrates in the bridge structure in conjunction with the vibration of the voice coil 4, the vibration is restricted, and the resulting fine vibration cannot be transmitted to the diaphragm 5 completely. It is a phenomenon.

Reference numeral F3 denotes that when the electric signal applied to the voice coil 4 from the outside is in the low-frequency range, the vibration transmitted through the suspension 10 of the present invention is completely transmitted to the diaphragm 5 to be audible. The low frequencies of the frequencies show extended frequency characteristics.

1: frame 1a: yoke
1b: Ventilator 2: Permanent magnet
3: plate 4: voice coil
5: diaphragm 5a: edge
5b: Body 10: Inventor Suspension
100: supporter part 110a, 110b: patterning part
120: seam 130a, 130b: solder land
140a, 140b: Solderland 200: Swing Bridge
210: first bridge 211: auxiliary bridge
212: (+) terminal 220: the second bridge
221: auxiliary bridge 222: (-) terminal

Claims (7)

The frame 1 is formed in the form of a one-body plate elongated in one direction and formed with a pair of yoke portions 1a recessed in a predetermined portion, and a permanent magnet seated on each yoke portion 1a of the frame 1 ( 2), a plate 3 seated on an upper surface of the permanent magnet 2, and a voice coil 4 wound around the upper outer circumferential surface of the permanent magnet 2 and supplying a peak pressure electric signal of an acoustic signal from the outside. And a diaphragm 5 vibrating with the force generated by the interaction of the current flowing through the voice coil 4 with the permanent magnet 2 while being fitted inside the frame 1. A speaker suspension for transmitting the vibration of the voice coil (4) to the diaphragm (5),
The permanent magnet 2 is electrically connected to both ends of the voice coil 4 so as to apply an electrical signal to the voice coil 4 from the outside, and is induced by electromagnetic induction of the electrical signal applied to the voice coil 4. The voice coil 4 vibrates along the longitudinal direction of the voice coil 4 and is closely coupled between the voice coil 4 and the diaphragm 5 so that the diaphragm 5 vibrates in association with the vibration of the voice coil 4. Supporter part 100;
One end is electrically connected to both ends of the supporter part 100 so as to apply an electrical signal to the supporter part 100 from the outside, and the other end is a terminal for receiving an electric signal from the outside. A pair of swing bridges 200 attached to each other and elastically connecting the diaphragm 5 and the frame 1 while vibrating in association with vibrations of the diaphragm 5;
It is configured to include,
In order to correspond to the structure in which the voice coil 4 is wound around the permanent magnet 2, a pair of joints 120 having a loop shape are integrally formed with the body of the supporter part 100, and the supporter part is supported. Solder lands 130a and 130b are formed on the body of the supporter part 100 adjacent to the joint part 110 of the 100 so that the lead wire and the lead wire of the voice coil 4 are electrically connected and soldered. The solder lands 130a corresponding to the lead wires of the voice coil 4 and the solder lands 130b corresponding to the lead wires of the voice coil 4 are both sides of the supporter part 100 based on the longitudinal center of the body. A speaker suspension, which is arranged in each of the parts. The method according to claim 1,
The swing bridge 200 is soldered to both ends of the supporter part 100 and electrically connected to each other, the first bridge 210 having a (+) terminal integrally formed therein, and a second (-) terminal integrally formed therein. Suspension for speakers, characterized in that the bridge 220 is disposed insulated from each other. The method according to claim 2,
The supporter part 100 is made of a synthetic resin material in which the body is an insulator having a loop shape that is elongated in one direction like the frame 1, and both sides are electrically insulated from each other based on the longitudinal center part of the body and one surface of one side part. The speaker which is electrically connected to the first bridge 210 and the patterning unit 110a, 110b patterned to be electrically connected to the second bridge 220 on one surface of the other side is formed integrally Suspension. delete delete The method according to claim 2,
Each of the first bridges 210 and the second bridges 220 is formed to extend each of the auxiliary bridges 211 and 221 protruding in a direction facing each other, and the auxiliary bridges 211 and 221 are spaced apart from each other by a predetermined distance. In the state, a film of a synthetic resin, which is an insulator, is coated on the outer circumferential surfaces of the first bridge 210 and the second bridge 220, and the first bridge 210 and the second bridge 220 are coated by the coated film. Suspension for speakers, characterized in that integrally connected to be electrically isolated from each other. The method of claim 6,
The first bridge 210 and the second bridge 220 are formed with solder lands 140a and 140b electrically connected to and soldered to the body of the supporter 100, and each of the solder lands 140a, 140b) is a speaker suspension, characterized in that each of the supporter 100 is disposed symmetrically on both sides relative to the longitudinal center portion of the body.

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